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ZHENG YU FENG
ENERGY SAVING TECHNOLOGY
ENERGY SAVING, NEVER ENDING
Anhui Zhengyufeng Energy Saving Technology Co., Ltd.
Realistic Innovation, Relentless Excellence,
Integrity in Action, Serving with Passion
Philosophy
Our Tenet
Energy Saving, Never Ending
Our Spirit
Realistic Innovation, Relentless
Excellence,Integrity in Action,
Serving with Passion
BusinessPhilosophy
Global Excellence, Smart
Efficiency Win-Win Synergy
TechnologyIdeas
Every good employee should be
a shareholder of the company.
TalentConcept
Future Ready, Beyond Perfection
http://www.ahzyf.cn/ ZHENG YU FENG
Contents
02/03 Company Profile
04/12 Core Technologies
13 Business Mode
14/15 Case List
16/21 Benchmark Cases
22/29 Honors and Qualifications
01
Zhengyufeng Energy Saving Technology
Energy Saving,Never Ending
Company Profile02/03
Anhui Zhengyufeng Energy Saving Technology
Co., Ltd. was established in March 2021 with a registered capital of RMB 30 million. Our company mainly focuses on thermal systems in large-scale manufacturing and high- energy-consuming industrial fields such as chemical industry, steel, coking, cogeneration, papermaking, printing and dyeing, sugar making, metallurgy, and construction materials. It is committed to the development and manufacturing of high efficiency and energy saving steam turbine, technical modification for efficiency improvement of industrial steam turbine flow structure, operation mode conversion, and comprehensive utilization of was te heat and was te pres sure for power generation, and supply of second-hand steam turbine generator sets. It is also an investment service enterprise with the capability of overall s y s t e m i c r e s e a r c h , c o n s u l t i n g , d i a g n o s i s , development, promotion, investment, construction and operation, including the production and supply of energy-saving and consumption-reducing products and the implementation of energy-saving plans. Our company currently owns 67 patents of utility model and 23 invention patent s , inc luding \"Energy-saving and consumption-reduction steam turbine\" and \"Safe noise-reducing steam turbine\". Our company's major business conforms with t h e c u rr e n t g l o b a l g r e e n a n d l o w - c a r b o n cooperation and development strategy, and belongs to the categor y of comprehens i ve utilization of industrial resources and energy saving and consumption reduction strongly advocated by all countries. Its parent company, Anhui Yuteshuang Energy Saving Technology Co., Ltd., was established in November 2013 with a registered capital of RMB 50 million. Our company's professional and technical capability, the quantity and quality of its cases are all in a leading position in Chinese domestic market.
A single case can generate at least 1000kw/h of energy-saving electricity, and a single project can
create more than RMB 4.2 million of energy-saving benefits per year. So far, our company's technical conversion investment projects have achieved the performance of total energy saving electricity of 800 million kWh annually, saved more than 250,000 tons of standard coal, and reduced emissions of carbon oxides and dust by more than 700,000 tons. It brings good economic and social benefits, and at the same time it has achieved a win-win situation for cooperation parties and society. Our company's core technologies and cases have been listed into National Recommended Catalogue, Guideline and Cases of Industrial Energy-Saving Technologies and Equipments of t h e M i n i s t r y o f I n d u s t r y a n d I n f o r m a t i o n Technology (MIIT) of China for two consecutive years,National Industrial Power Demand-Side Management Reference Products (Technologies) Catalogue, National Industrial Advanced and Applicable Technologies Catalogue (First Batch) , selec ted as National Energy Conser vation Diagnosis Service Provider Recruitment Project for four consecutive years, which are released by Chinese Ministry of Industry and Information Technology (MIIT). Our company has been a w a r d e d o v e r 8 0 n a t i o n a l - l e v e l a n d provincial/ministerial-level certifications and honors to date. Our company wins clients with honesty, and serves clients with high-quality products. Always adhere to the concept of energy saving, high efficiency and environmental protection and develop the new type efficient steam turbine independently. The company provides the one- stop service of scientific R&D, design and m a n u f a c t u r i n g , e n g i n e e r i n g i n s t a l l a t i o n . Comparing with same type of product in the market, the efficiency of the steam turbine is creased by 7 - 40%.
http://www.ahzyf.cn/ ZHENG YU FENG
Core Technology Ⅰ
》
1. The multi-stage impulse steam turbine has 2 to 4 more pressure
stages than that of other manufacturers. The stage gap is reduced to
allocate more stages in the flow part, the enthalpy drop of each stage
is reduced. Reduce the diameter of flow structure, thus the blade
height loss is significantly reduced. This technology was selected and
listed in 2019 National Recommended Catalogue, Guideline and
Cases of Industrial Energy-Saving Technologies and Equipments,
released by Chinese MIIT.
2. Monolithic forged rotor assembly adopts whole forging method
and it's a rigid rotor . The integration of the impeller and the shaft
increases the safety and stability of operation. The blade profile is
optimized and the partition is synchronously matched.
3. Reduce the rotor diameter and increase the blade length,
compress various contact gaps to reduce steam leakage and make the
steam work to the maximum extent, thereby to achieve high efficiency
and more electricity generation under the same working conditions.
4. Add a sleeve cylinder, usually in casting or forging type,
reinforced with a partition sleeve, and works with the newly added
pressure stages and partition to increase the working air tightness of
the new pressure stage, reduce air leakage and enhance operation
safety, thus improve the working capacity of the unit.
Zhengyufeng
Energy Saving Technology
04/05
design drawing of high temperature ultra-high pressure high
backpressure steam turbine Project B12-13.1/6.9//535.
5. Increase the length and quantity of comb-teeth steam seal from
original 36 teeth to 45 teeth, and the tooth height is also increased,
which effectively reduces steam leakage;
6. Comparing with similar steam turbine units from Chinese
domestic market, it can improve efficiency by 10% to 30%, small
volume with minimal floor space. The optimization of the flow structure
enables the unit to produce more power under the same working
conditions, thus generate energy-saving economic benefits.
http://www.ahzyf.cn/ ZHENG YU FENG
Core Technology Ⅱ
》
1. During the production process of high-energy-consuming
industrial enterprises, a considerable amount of waste heat and
waste pressure is generated, including heat sources and calorific
value waste in kilns, ore-fired furnaces, reactors, cooling and
pressure reduction devices and other production processes,
collectively referred to as waste heat and waste pressure
resources.
2. Our company can provide different energy-saving technology
conversion solutions according to the actual waste heat and waste
pressure of the owner. Add the waste heat boiler to convert the
calorific value to produce steam, and then add the condensing or
back-pressure steam turbine unit to generate electricity or drive
equipment, which directly brings economic benefits. Such power
generation project is built into a self-contained power station of the
owner's enterprise, and all the electricity generated is used for the
owner's production or lighting.
Zhengyufeng
Energy Saving Technology
06/07
Temperature and pressure reduction equipment
3. For this project, our company is responsible for the completion of
all legal procedures related to the project, such as feasibility study,
technical research, project approval, project filing, environmental
assessment, safety assessment, grid access etc., together with the
application and implementation of technical conversion and other
r e w a r d s , i n c l u d i n g p r o j e c t t e c h n i c a l d e s i g n , c o n s tr u c t i o n
implementation and daily operation. The single investment amount of
this project is approximately between RMB 5 million and 100 million.
Features of this project: It does not change the original process flow
of the owner, not affect the continuous production, not request the
investment from the owner, and both parties benefit in the long term
with the single investment of our company. The project has the
advantages of high stability, long annual working time, and significant
income.
Principle Schematic diagram of comprehensive utilization of waste
heat and waste pressure resources
High efficient steam turbine
Temperature reducer
Generator
Central control
http://www.ahzyf.cn/ ZHENG YU FENG
Core Technology Ⅲ
》
Real object image of the steam turbine
blade after profile optimization and
replacement
Real object image of added pressure
stage to the original rotor assembly
1. The original ground foundation, regulation and auxiliary systems
of the steam turbine unit are kept unchanged to compress the
shutdown and conversion period within 40 days, plus 60 days of the
design and production preparation before the turbine shutdown, the
total time is within 100 days. The original upper cylinder and rotor
assembly, partition, generator rotor assembly are returned to the
factory for processing, testing and unit pre-assembly.
2. For models below sub-high temperature and sub-high pressure,
keep the original rotor structure, after thermal calculation, reduce the
original pressure stage space and increase the pressure stage
selectively by 2 to 8 stages, reduce the impeller diameter, install the
new extended profile blades and partitions, modify and optimize the
original steam seal structure to increase the working capacity of the
unit flow structure;
3. Add a sleeve cylinder, usually in casting or forging type,
reinforced with a partition sleeve, and works with the newly added
pressure stage and partition to increase the working air tightness of
the new pressure stage, reduce air leakage and enhance operation
safety, thus improve the working capacity of the unit;
Zhengyufeng
Energy Saving Technology
08/09
4. Simultaneously do dynamic balancing tests to the turbine rotor
assembly and the original generator rotor assembly to solve abnormal
vibration during unit working. Do the maintenance of pressurization,
dust removal and drying to the generator set simultaneously.
5. Clean and partially renovate the condensing system of the original
steam turbine auxiliary equipment and condensing unit to improve the
system stability and heat exchange effect, and assist in improving the
system's working capacity;
6. The high-temperature high-pressure model has a monolithic
forged rotor. Except cannot to add the pressure stage and the sleeve
cylinder, other conversion and efficiency-enhancing methods remain
unchanged. If necessary, to replace the rotor assembly and add the
pressure stage to execute same operation with that of flow structure
technical conversion and efficiency improvement with reference of the
actual operation status of the unit.
This type of conversion method has the characteristics of small
investment, short conversion period, and significant energy saving and
efficiency improvement. Under the same operating conditions of the
original unit, the energy saving and efficiency improvement ratio is more
than 12%, and the economic and social benefits are both significant. The
investment amount of a single project is between RMB 3 million and 10
million.
Real object image of the sleeve cylinder
of high pressure end of the flow structure
Real object image of the sleeve cylinder
of low pressure end of the flow structure
http://www.ahzyf.cn/ ZHENG YU FENG
》
Core Technology Ⅳ
The original ground foundation, regulation and auxiliary system are kept
unchanged to compress the shutdown and conversion period within 40 days,
plus 60 days of the design and production preparation before the turbine
shutdown, the total time is controlled within 100 days. The original upper
cylinder and rotor assembly, partition, generator rotor assembly are returned to
the factory for processing, testing and unit pre-assembly.
1. Conversion of condensing type to back pressure type
For models below sub-high temperature and sub-high pressure, the upper
cylinder, lower cylinder and rotor assembly of the original condensing unit to be
kept unchanged, the pressure stage shall be modified and replaced based on
original rotor structure. The original steam extraction port shall be modified and
used as the exhaust port of back pressure type. After thermal calculation,
modify and optimize the blade profile in front of the original steam extraction
port. If necessary, re-design and replace the impeller and blades, install new
partition and steam seals, and add a sleeve cylinder to converse the original
steam extraction to back-pressure exhaustion as per the required parameter.
At the same time, the flow passage part at the low-pressure end of the original
unit shall be completely blocked with partitions, remove the working stage at the
original low-pressure end completely and add new counterweights, and do
dynamic balancing inspection to the modified turbine rotor assembly and
generator rotor assembly before leaving the factory. Modify and retain other
auxiliary equipment and remove original condensing system completely.
Real object image of the upper cylinder after
modification from condensing extraction type to
back pressure type
Real object image of the pressure stage of high
pressure end after modification from condensing
extraction type to back pressure type
Zhengyufeng
Energy Saving Technology
10/11
Real object image of sleeve cylinder and
counterweight after modification from
condensing extraction type to back
pressure type
For high temperature high pressure models, for the monolithic forging rotor,
decide whether to keep the original rotor assembly as per the actual required
working parameters. If yes, redesign the blade profile and replace the blade,
and keep the original pressure stage. Otherwise, replace it with a new rotor
assembly and keep other methods unchanged.
2. Adjustment and modification of steam turbine unit operating parameters
It's suitable for both condensing and extraction back pressure units. The
original unit needs to be adjusted and modified in terms of extraction or
exhaust pressure and flow when actual operating parameters change. For
such demand, adjust the pressure stage quantity of original unit, change the
blade profile and optimize the steam seal structure as per thermal calculation
result, and adjust the entire flow area to realize the target of meeting the actual
working parameter requirements after modification; this conversion method
owns the characteristics of not requiring the unit replacement, small
investment, short conversion period, and the unit operating efficiency is not
lower than that of brand new units. The economic and social benefits are both
significant, and the investment amount of a single project is between RMB 2
million and 5 million.
Design drawing of rotor assembly from
condensing extraction type to back
pressure type
http://www.ahzyf.cn/ ZHENG YU FENG
Core Technology Ⅴ
》
Industrial energy saving diagnosis is a comprehensive diagnosis to
the technology and equipment of enterprises, energy utilization
efficiency and energy management system, which is conducive to
helping enterprises find energy consuming problems, find energy
saving potentiality, and improve energy efficiency and energy saving
management capability. By building energy conservation policies and
regulations, improving the standard system, strengthening energy
conservation supervision, and promoting energy conservation
technologies, the energy efficiency of enterprises can be improved
continuously.
1. Diagnosis service object: enterprises with weak energy
management basis, say chemical industry, steel, coking, combined
heat and power supply, paper making, printing and dyeing, sugar
making, metallurgy, construction materials and so on. Recommend
those enterprises to carry out a overall diagnosis with our support, we
will guide key high-energy-consuming industries to carry out specific
diagnosis, mainly for technology, process, equipment and energy
management systems.
2. Diagnosis service content: focus on the enterprise production
process and the major equipment, conduct the diagnosis from these
three aspects, energy utilization, energy efficiency and energy
management. Analyze the potentiality of energy saving technology
conversion. For the equipment of mainly consuming electricity, focus
on the diagnosis of energy efficiency of steam turbine and generator
system, and analyze the application potentiality of advanced energy
saving technology and equipment.
Zhengyufeng
Energy Saving Technology
12/13
http://www.ahzyf.cn/ ZHENG YU FENG
Business Mode
1. Energy Management Contracting, EMC, is a new market-oriented
energy saving mechanism. Its essence is an energy saving investment
means to pay the total cost of energy saving projects by the reduced
energy costs. This energy saving investment method allows customers to
use future energy saving benefits for plant and equipment upgrades to
reduce current operating costs.
Our company carries out the project conversion with the business mode
of benefits sharing of Energy Management Contracting, and undertakes
the technical risks and investment risks of the project. During the contract
period, both parties share the energy saving benefits according to the
agreed proportion, we undertake the overhaul and maintenance of the
equipment, and transfer the project property rights to the owner free of
charge after the contract period. Generally, the customer range covers
the high quality customers of large central state-owned enterprises
(SOEs) , state-owned enterprises, China's Top 500 companies .
2. Direct technology and sales service. This mode means the owner
pays the project advance payment, progress payment, acceptance
payment and expired quality guarantee deposit as agreed. The contract
will finish once the project implementation finishes.
Jinjiang Group Guangxi Tiandong Jinsheng
Chemical Co.,Ltd., China's top 500
B10-13.1/6.9 EPC project of energy saving conversion of high
temperature ultra-high pressure high back pressure steam turbine.
Case List
Jinjiang Group Sanmenxia Kaiman (Shan
County) Energy Sources Comprehensive
Utilization Co.,Ltd., China's top 500
Jinjiang Group Xiaoyi Xing'an Chemical
Co., Ltd, China's top 500
Senze Coal and Aluminum Co., Ltd, Private
enterprises Top 500
Shandong Xinlong Group Co.,Ltd., China's
top 500
Shanxi Senze Coal and Aluminum Co., Ltd,
Private enterprises Top 500
Shandong Luli Group Co., Ltd., China's top
500
Jinjiang Group Sanmenxia Kaiman (Shan
County) Energy Sources Comprehensive
Utilization Co.,Ltd., China's top 500
Henan Jinkong Tianqing Coal Chemical Co.,Ltd.,
China's top 500
Jinjiang Group Sanmenxia Kaiman (Shan
County) Energy Sources Comprehensive
Utilization Co.,Ltd., China's top 500
Jinjiang Group Sanmenxia Kaiman (Shan
County) Energy Sources Comprehensive
Utilization Co.,Ltd., China's top 500
Jinjiang Group Xiaoyi Xing'an Chemical
Co., Ltd, China's top 500
Henan Jinkong Tianqing Coal Chemical
Co.,Ltd.,China's top 500
B7.5-8.83/6.4//535 EPC project of energy saving and efficiency
increasing of high back pressure steam turbine
B8-9.2/6.7//535 EMC project of energy saving conversion of high
back pressure steam turbine Unit 1#.
B12-8.83/0.785//535 EMC project of energy saving conversion
and efficiency increasing of back pressure steam turbine Unit 1#.
B15-8.83/1.57 EPC project of energy saving conversion and
efficiency increasing of high back pressure steam turbine Unit 2#.
B3.4-8.83/6.4//535 EMC project of energy saving conversion and
efficiency increasing of high back pressure steam turbine Unit 3#.
B35-8.83/0.98/535 New project of back pressure steam turbine
generation unit.
B20-8.83/1.08 EPC project of technical conversion and efficiency
increasing of back pressure steam turbine generation unit No. 4#.
CB20-9.1/4.74/0.77 EMC project of energy saving conversion and
efficiency increasing of extraction back pressure steam turbine.
B2-6.3/0.8//485 EPC project of feed water pump energy saving
conversion from electricity driving to steam driving.
B3.15-0.95/0.2//275 Feed water pump conversion project from
electricity driving to steam driving of thermal loop network .
B2.1-6.4/0.981//450 Back pressure Unit 6# EPC project of feed
water pump energy saving conversion from electricity driving to
steam driving.
N12-0.7//230 EPC project of electricity generation of
comprehensive utilization of waste heat and waste pressure
resources of low pressure condensing steam turbine
Anhui Debang Chemical Co.,Ltd.,
joint-stock company
B3-3.43/2.35 EMC project of electricity generation of
comprehensive utilization of waste heat and waste pressure
resources of back pressure steam turbine
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Zhengyufeng
Energy Saving Technology
14/15
The customer range covers central state-owned enterprises,
state-owned enterprises, large listed enterprises and China's Top
500 companies. The patented technology are transformed, and the
technical achievements are tested.
Jiangsu Debang Duoling Health Technology
Co,.LTD., joint-stock company
B0.6-2.6/0.8 EMC project of electricity generation of
comprehensive utilization of waste heat and waste pressure
resources of back pressure steam turbine
Wanbei Coal-electricity Group Qidong Coal
Gangue Electric Power Plant
Heze Fuhai Energy Development Co.,Ltd.,
China's top 500
Liaoning North Dynasol Synthetic Rubber
Co.,Ltd., defense industry enterprise
Shandong Luli Group Co., Ltd., China's
top 500
Shandong Xinlong Group Co.,Ltd., China's
top 500
Shanxi CECEP Lu'an Power Energy Saving
Service Co., Ltd., China's top 500
Shandong Xinlong Group Co.,Ltd., China's
Top 500
Jinjiang Group Sanmenxia Kaiman (Shan
County) Energy Sources Comprehensive
Utilization Co.,Ltd., China's Top 500
Jinjiang Group Sanmenxia Lvneng
Environmental Protection Energy Co., Ltd,
China's top 500
Dongying Xishui Group Thermal Power
Co.,Ltd., joint-stock company
C12-4.9/0.981//470 (2 units) EPC project of flow structure
conversion and efficiency increasing of extraction condensing
steam turbine
C20-8.83/0.981//535 EMC project of flow structure conversion
and efficiency increasing of extraction condensing steam turbine
B0.9-3.6/0.3//300 EMC project of flow structure conversion and
efficiency increasing of back pressure steam turbine
CC60-8.83/3.92/0.98 EPC project of flow structure conversion and
efficiency increasing of double extraction condensing steam turbine
C55-8.83/1.57//535 Technical service project of flow structure
conversion and efficiency increasing of extraction condensing
steam turbine Unit 3#
F30-SF-D-07-E-C Technical service project of flow structure
repairing to extraction condensing steam turbine
CC55-8.83/4.2/1.57//535 Technical service project of flow
structure conversion and efficiency increasing of double extraction
condensing steam turbine Unit 4#
C25-8.83/0.981//535 Technical service project of flow structure
conversion and efficiency increasing of extraction condensing
steam turbine Unit 1# & 2#.
C15-3.8/0.981 Steam turbine energy saving conversion project
from condensing type to adjustable extraction type.
C60-8.83/0.981 Energy saving diagnosis service project of
operation mode conversion from extraction condensing type to
back pressure type.
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http://www.ahzyf.cn/ ZHENG YU FENG
Benchmark case Ⅰ
》
The production period of this project is
1 6 5 d a y s , a n d t h e i n s t a l l a t i o n a n d
commissioning period is 50 days. It was
started up and connected to the grid to
generate electricity on January 23, 2025.
All indexes are excellent and stable. The
p r o j e c t a c c e p t a n c e i n s p e c t i o n w a s
completed on February 15, 2025. Our
company is responsible for the full set of
services of electrical regulation, electrical
i n s t r u m e n t s , i n s t a l l a t i o n a n d
On June 30, 2024, our company won the
bid and signed the project contract.This
project uses a high-efficiency, hightemperature, ultra-high-pressure, highback-pressure steam turbine generator set,
model B10-13.1/6.9, to replace the original
temperature and pressure reduction device,
realize the cascade utilization of energy
and avoid energy waste, thus brings
energy-saving effects and economic
benefits.
Zhengyufeng
Energy Saving Technology
commissioning of this project.
16/17
Benchmark case Ⅱ
》
On April 27th 2023, our company
i m p l e m e n t e d t h e e n e r g y s a v i n g
conversion by replacing the original
low efficiency steam turbine with a
high efficiency back pressure steam
turbine, Model B15-8.83/1.57//535.
The design and production of this project
was within 155 days, and 35 days for
conversion, maintenance, installation and
commissioning. The project acceptance
was completed on December 15,2023. The
annual energy saving economic benefit
reaches RMB 10 million. All the investment
cost can be recovered in eight months, and
the economic benefit of the project is
significant.
http://www.ahzyf.cn/ ZHENG YU FENG
Benchmark case Ⅲ
》
The unit originally operated stably at an
electrical load of about 4.3MW. After the
high-efficiency conversion, under the
same operating conditions, the real unit's
o p e r a t i n g s t e a m c o n s u m p t i o n wa s
50.25kg/kw.h instead of the original
83kg/kw.h. The energy-saving and
efficiency-improvement ratio reached
3 9 . 4 6 % , a n d t h e e n e r g y - s a v i n g
e l e c tri c i t y w a s 2 8 2 7 k w p e r h o u r.
Calculating based on annual operation
time of 8,000 hours and electricity price
of RMB 0.5/kw.h, the annual energysaving economic benefit is not less than
RMB 11.308 million. The energy-saving
and social benefits of the project are both
significant.
Our company signed the EMC
project contract on March 8, 2020.
The unit model is B7.5-9.2/6.7 and
high back pressure type, and the
exhaust pressure reaches 67 kg,
which is rarely adopted in China. The
project is implemented by replacing
with a high-efficiency unit body.
Zhengyufeng
Energy Saving Technology
18/19
Benchmark case Ⅳ
》
On October 11, 2020, our company won
the bid and signed the project contract.In
this project we used a high-efficiency lowp r e s s u r e c o n d e n s i n g s t e a m t u r b i n e
generator set to make full use of the
current low-pressure surplus steam of
0.7MPa, 230℃, 75-90t/h, and build it into
the owner's internal self-contained power
station to produce clean electricity, all of
which is used for the owner's lighting or
production consumption, and at the same
time recycles condensate.
http://www.ahzyf.cn/ ZHENG YU FENG
This project is a resource utilization
project strongly advocated by the
country, grid-connected but not sell to
the grid, it belongs to distributed
energy resources. The installation,
commissioning, and grid connection
and power generation were completed
in early May 2021. Calculating with
8,000 hours per year and average
annual power generation of 11,500
k w / h , i t c o u l d c r e a t e a n a n n u a l
economic benefit of RMB 46 million.
The economic and social benefits of
the project are both significant.
Benchmark case Ⅴ
》
On January 21 and December 20, 2021, our
company signed the contract of two units
c o n v e r s i o n p r o j e c t s r e s p e c t i v e l y , a n d
implemented the energy-saving technical
conversion and efficiency improvement of the
unit flow structure by paying the technical
service fee in batches. The two units operate at
a daily electrical load of about 55MW, and the
steam extraction is used for external people's
livelihood heating supply, and the excess
steam is condensed to produce electricity.
After the technical conversion of the flow
structure of the two units, the energy saving
and efficiency improvement ratios of Unit 3
a n d U n i t 4 w e r e 7 . 3 % a n d 7 . 5 2 %
respectively under the same rated operating
conditions, both far exceeding the 4% and
5% assessment clauses stipulated in the
contract. The energy saving electricity was
no less than 4015kw/h and 4136kw/h, and
the annual economic benefits were no less
than RMB 16.06 million and RMB 16.54
million. Both the energy-saving and social
benefits of the project are significant.
Zhengyufeng
Energy Saving Technology
20/21
Benchmark case Ⅵ
》
The original unit model of this project is
N15-3.8//390 and pure condensing unit,
which is used for the incineration power
generation of domestic waste treatment.
Because of the external heating supply
demand of the owner, the owner is running
with temperature and pressure reduction
device and can't realize the energy cascade
utilization, thus energy waste exists. So it is in
urgent need of energy saving conversion.
The contract of this project was signed on
June 24, 2024, the design, production,
installation and commissioning period was
within 60 days, the project acceptance
inspection was completed on January 25,
2025. Under the working condition of steam
extraction 30t/h, energy saving electricity
reached 2307kw/h, and the energy saving
efficiency reached 30.9%, annual energy
saving benefits could reach RMB 9.228
million; For steam extraction of 15t/h, these
data are 1153kw/h, 10.7%, RMB 4.612 million
respectively.
our company re-designed and modified the flow structure of the unit body to
make it adjustable. Through electrical automation system, the extraction
pressure and flow could be flexibly adjusted to meet the external heating supply
demand at the same time of replacing temperature reduction and decompression
device, and using exhaust steam to generate electricity, thus brings direct
economic benefits.
http://www.ahzyf.cn/ ZHENG YU FENG
Honors and Qualifications
Zhengyufeng
Energy Saving Technology
22/23
Totally 90 independent intellectual property rights, including 23 invention patents
and 67 utility model patents
http://www.ahzyf.cn/ ZHENG YU FENG
From 2019–2023 Consecutively selected for four years under the Ministry of
Industry and Information Technology (MIIT) program \" Industrial Energy
Conservation Diagnostic Service Provider Recruitment Project \" recognized
as a National Key Energy Conservation Diagnostic Service Institution
2 core technologies listed into Chinese MIIT National Recommended
Catalogue, Guideline and Cases of Industrial Energy-Saving
Technologies and Equipments in 2019 and 2020.
Zhengyufeng
Energy Saving Technology
24/25
Five Provincial/Ministerial level scientific achievements
Technological conversion, efficiency
improving energy saving technology
of industrial steam turbine flow structure
Industrial enterprise energy-saving and
electricity generation technology of
comprehensive utilization of waste heat
and waste pressure resources
An improving flow structure of steam turbine A safe noise-reducing steam turbine
Research on Energy Conservation and Carbon Reduction
Pathways for Traditional Manufacturing Under Dual Carbon Goals
http://www.ahzyf.cn/ ZHENG YU FENG
National Level
1. 2018 and 2021 : Certified as a National High-Tech Enterprise ;
2. October 2024 : Certified as a National High-Tech Enterprise again ;
3. August 2019 – September 2023 : Consecutively selected for four years under the Ministry of
Industry and Information Technology (MIIT) of China program 2019–2023 Annual National Industrial
Energy Conservation Diagnostic Service Provider Recruitment Projec , recognized as a National Key
Energy Conservation Diagnostic Service Institution , providing energy-saving consultation and diagnostics
for high-energy-consuming enterprises under MIIT overall arrangement;
4. November 2019 : Industrial Steam Turbine Flow Structure Conversion Energy-Saving Technology and
related cases were both listed in MIIT's 2019 National Recommended Catalogue, Guideline and Cases
of Industrial Energy-Saving Technologies and Equipments;
5. September 2020 : Industrial Steam Turbine Operation Mode Conversion Energy-Saving Technology was
listed in MIIT's 2020 National Recommended Catalogue, Guideline and Cases of Industrial Energy-Saving
Technologies and Equipments;
6. June 2024 : Steam Turbine Unit Flow Structure Technological Conversion, Efficiency Increasing and Energy
Saving Technology was included in MIIT's National Industrial Power Demand-Side Management Reference
Product (Technology) Catalogue – Energy Efficiency Power Plant Category\";
7. January 2025 : Steam Turbine Unit Flow Structure Technological Conversion, Efficiency Increasing Energy Saving
Technology was listed in MIIT's National Industrial Advanced and Applicable Technologies Catalogue (First Batch);
Provincial/Ministerial Level
8. 2017–2024 : Consecutively selected for eight years into Anhui Province's Energy Conservation and Environmental
Protection industry \"Five One-Hundred\" project, i.e. Outstanding Energy Conservation and Environmental Protection
Service Companies Directory , Energy Conservation and Environmental Protection Service Institutions Directory,
Advanced Technologies Directory, Key Projects Directory, and Energy Conservation and Environmental Protection
New Products & Equipment Directory;
9. June 2018 : Two core scientific achievements passed review and publication by Anhui Provincial Department of Science
and Technology ;
10. August 2018 : Certified as a \"2018 Provincial Growth-Oriented Small/Micro Enterprise\" (SME) ;
11. April 2019 : Listed on the Anhui Equity Custody Exchange Center's Sci-Tech Innovation Board (Stock Code: 612453);
12. July 2019 : Designated as a \"Second Batch of Provincial Service-Oriented Manufacturing Demonstration Platforms\" ;
13. November 2019 : General Manager Yuan Ke was recognized as a \"Strategic Emerging Industries Technology Leader
(8th Batch)\" by Anhui Provincial Department of Human Resources and Social Security;
14. December 2019 : Awarded \"Anhui Provincial SME Public Service Demonstration Platform\" certification;
15. January 2020 : \"Energy-Conserving 12MW Extraction-Condensing Steam Turbine Unit\" was listed in the Provincial
High-Tech Products Catalog ;
16. March 2020 : Honored as a \"Anhui Provincial Trademark and Brand Demonstration Enterprise\" ;
17. March 2020 : Included in the \"2020 First Batch of Anhui Provincial Sci-Tech SMEs\" list;
18. June 2020 : Two core scientific achievements passed registration and certification by Anhui Provincial Department of
Science and Technology;
19. July 2020 : General Manager Yuan Ke was selected as a member of the Anhui SME Volunteer Service Expert Pool ;
20. August 2020 : Certified as a \"2020 Provincial AAA Credit Enterprise\" ;
21. August 2020 : General Manager Yuan Ke and Deputy General Manager Li Qingfeng were included in the Anhui Industrial
Energy Conservation Expert Database ;
22. September 2020 : General Manager Yuan Ke was awarded \"2020 Anhui Outstanding Integrity Entrepreneur\" ;
23. January 2021 : Two products—\"High-Efficiency Small Back-Pressure Steam Turbine Unit of Comprehensive Utilization
of Waste Heat & Pressure Resource\" and \"Energy-Saving Blade Profile and Partition Structure Steam Turbine Unit\" —
were listed in the Provincial High-Tech Products Catalogue ;
Zhengyufeng
Energy Saving Technology
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24. April 2021 : Awarded \"2021 Anhui Contract-Compliant & Integrity Enterprise,\" \"Integrity Operation
Demonstration Enterprise,\" and \"AAA Credit Enterprise for Bidding\" ;
25. December 2021 : Recognized as a \"Anhui Provincial Specialized, Sophisticated, Distinctive, and Innovative SME\" ;
26. October 2022 : General Manager Yuan Ke was certified as a \"Special Support Plan (8th Batch) Innovation and
Entrepreneurship Leader\" by Anhui Provincial Organization Department;
27. May 2024 : Included in both the \"Second Batch of Provincial Energy Conservation, Coal Reduction, and Carbon
Reduction Diagnostic Service Providers\" and \"Qualified Energy Management Contracting Suppliers\" lists;
28. July 2024 : Scientific achievement \"Research on Energy Conservation and Carbon Reduction Pathways for
Traditional Manufacturing Under Dual Carbon Goals\" passed certification by Anhui Provincial Department of
Science and Technology;
29. July 2024 : Listed in Anhui Provincial Manufacturing Digital Transformation Service Provider Directory (Scope:
Smart Manufacturing, Energy Conservation, and Resource Efficiency);
30. September 2024 : Won Third Prize in the 2024 Anhui \"Huiguniang\" Innovation and Creativity Competition ;
31. October 2024 : Recognized as a \"2022–2023 Anhui AAA Contract-Compliant and Integrity Enterprise\" ;
32. December 2024 : Included in Anhui 2024 Green and Low-Carbon Products, Technologies and Suppliers
Directory ;
33. May 2025 : Listed in Anhui Provincial Manufacturing Digital Transformation Service Provider Directory ;
Municipal/County Level
34. October 2015 : R&D project won the \"2015 Wuhu City Outstanding Sci-Tech Entrepreneurship Project Award\" ;
35. February 2018 : Awarded \"Outstanding Startup Enterprise\" by the Science and Innovation Center Park;
36. September 2018 : Won the \"7th China Innovation and Entrepreneurship Competition – Anhui Division (Wuhu
Regional) Outstanding Growth Enterprise Award\" ;
37. January 2020 : General Manager Yuan Ke received the \"2019 Wuhu Outstanding Private Entrepreneur\" title;
38. January 2020 : General Manager Yuan Ke was appointed as a \"Wuhu Energy Conservation Association Energy
Expert\" ;
39. May 2020 : Ranked 4th in the 2019 \"Maker China\" SME Innovation and Entrepreneurship Competition (Wuhu
Division) ;
40. June 2021 : General Manager Yuan Ke was appointed as a \"Visiting Professor\" by Anhui Institute of Information
Technology;
41. August 2021 : Certified as a \"Wuhu Specialized, Sophisticated, Distinctive, and Innovative SME\" ;
42. December 2021 : General Manager Yuan Ke was appointed as a \"Entrepreneurship Mentor\" by the National
Science Innovation Center;
43. October 2022 : Included in the \"2022 Wuhu Eagle Cultivation Program\" list; R&D project successfully approved
by Wuhu Science and Technology Bureau;
44. May 2023 : General Manager Yuan Ke received a \"Wuhu Municipal Government Major Administrative Decision-
Making Advisory Expert\" appointment;
45. October 2023 : General Manager Yuan Ke was appointed as a \"Entrepreneurship Mentor\" by Anhui Institute of
Information Technology’s Ziyunying Innovation and Entrepreneurship College;
46. January 2024 : Awarded \"2024 Wuhu City Charitable Organizations for Caring and Assistance to the Disabled
and Warmth Delivery Campaign \" ;
47. February 2024 : Technology project \"R&D and Application of the technology of technological conversion,
efficiency improving and energy saving of industrial steam turbine flow structure\" passed acceptance by Wuhu
Science and Technology Bureau;
48. March 2024 : General Manager Yuan Ke received \"Wuhu City High-Level Talent (C1 Class)\" certification;
49. April 2024 : General Manager Yuan Ke was awarded \"2024 Wuhu National Economic Development Zone May
1st Advanced Individual\" ;
50. August 2024 : Won Third Prize in the \"13th China Innovation and Entrepreneurship Competition – Anhui
Division (Wuhu Finals)\" ;
http://www.ahzyf.cn/ ZHENG YU FENG
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Energy Saving Technology
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http://www.ahzyf.cn/ ZHENG YU FENG
ZHENG YU FENG Zhengyufeng
Energy Saving Technology
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》Cooperation Partners
Energy Saving,Never Ending
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Energy Saving Technology
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http://www.ahzyf.cn/ ZHENG YU FENG
Address : B503-B505, No. 35, Hengshan Road , Longshan Street,
Wuhu District, China (Anhui) Pilot Free Trade Zone,
Wuhu, Anhui, China
Phone : +86-553-5689027
Mail: ahzyfjn@126.com
Web : http://www.ahzyf.cn/
https://ahzyfjnkj.en.made-in-china.com/
