INTELLIGENT GREENENERGY ECOLOGY CO2REFRIGERATION SYSTEMSOLUTION

MOON-TECH

Low-temperature refrigeration

Centralairconditioning

Energy and chemical equipment

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MICG 冰轮智汇云

Environmentally friendly heating

SmartServices

Precision Casting

Hydrogen Energy Development

Founded in 1956,Moon Environment Technology Co.,Ltd (Stock Code: 000811).isadiversified and international comprehensiveequipment industrial enterprise.Themainbusinesscovers low-temperaturerefrigeration,central airconditioning,environmental protection heating,energy and chemical equipment,precisioncastings,smartservices, hydrogenenergydevelopment, etc.In recentyears,MOoN-TECH hassuccessivelywon the titlesof Top 30 Enterpriseswith Core CompetitivenessinChina'sMachinery Industry，Top100 EnterprisesofNationalMachinery Industry,MeritoriousEnterpriseof Equipment inChina,and Demonstration Enterprise for Ozone Layer Protection.

Foralongtime,with continuous technological and manage has promoted the continuousoptimizationof resourceallocationandreconstructionofcore competencies,accelerated international expansion transformation.We have transformed froma traditionalmanufacturing enterprise toamodernserviceoriented enterprise with strong competitiveness,large scale,wide coverage, complete businesschain,and strong comprehensive research and development capabilities

IntelligentPacking Machineryand Warehouse StorageSystem

With the synchronous development of refrigerationand heat treatment,and actively expanding energy-savingand environmental protection industryas developing strategy，MoON-TECH isengaged in the technical researchand development of low-temperature environment,waste heat recovery,gas compression,industrial heatexchange,urbancleanemissionand other fields, aswell as the production and salesof related complete sets of equipment, and specializes in food refrigeration,chemical processcooling,comfortable environmentairconditioning,research temperature control,process gas compression,buildingaggregatedcooling,comprehensiveapplicationof heat energy,permafrostdrilling,waste treatment,tec.MOoN-TECH hasproduction bases,scientificresearch centersandmarketing&serviceorganizationsinmore than40countriesaroundtheworld.Withsafe,environmentallyfriendly,energysaving,intelligentandButler-stylesystemintegrationcapabilities,MooN-CH isprovidingproductswith entire product life cycle to users inmore than 120 countries and regions around the world.

Withdevotingto improvingthe quality ofhuman lifeastheenterprisemission, MOON-TECHcontinuouslybuildand enhancecompetitiveadvantagesin thefield of comprehensiveenergy utilizationandacceleratetheprocessof globalization,takingtherevitalization ofnational industryandachievement ofcustomer valueas itsresponsibility, continuouslycreatesandimproves itscompetitiveadvantage,striving tobecomeanevergreenenterprise withcoreompetitiveness,loedby employeesandrespectedbyindustrial partners.

MOON-TECH has6 national scientific and technological innovation platforms including the National-Recognized Enterprise Technology Center and 16 provincial scientificand technological innovation platforms including the ShandongProvincialKeyLaboratoryof Energy Savingand Environmental Protection of Refrigeration Equipment.MOoN-TECH has beenrecognized asakey high-tech enterprise of the China Torch Program,with 326 national patented technologies,andhashostedandparticipatedinthe formulationof 25national standardsand37industrystandards.MOoN-TECH haswontwo national awards,the National Science&Technology Progress Award and the National Technology Invention Award,and hassuccessivelywon213 provincial andministerial scientificand technological achievementsawardssuchas theSpecial Prize forScientificand Technological Progressof the Chinese Associationof Refrigerationand the First Prize for Scientificand Technological Progress of Shandong Province.

Followingthe requirementsof the environmental policy of harmonious coexistencebetween humanandnature,MOoN-TECHiscommitted to the innovationofartificialenvironmentcontrol technologyand comprehensive energyutilizationtechnologytopromoteasimple,moderate,greenand lowcarbonmode of social production and operating system,actively buildingan interconnectedand complementary system,includingrefrigeration,heating, water,gas,electricity,wage,wastewitinthe - 2 7 1 ^ { \circ } C （20 - 2 0 0 ^ { \circ } C temperatureand 0-90Mpa pressure range,aiming toachieveanenergyecological link between industrialparksandlivingspaces,and becomeanintelligent greenenergy system solutionserviceprovider.MooN-TECHalsodedicatestodevelop the utilizationsof NH3、CO2、HC、He、H2O and otherenvironmentally friendly substancesapplication technologies,striving to provide professional, high value-added intelligent energy comprehensive utilization solutions.

DNV B L CRAA CNEX

Inrecent years,MOoN-TECHactivelyactualizedthegreenand low-carbon developingconcept,accelerating the transformationof traditional industries around thedual-carbongoaland energy revolution,promoting theupgrading of theindustrialstructure toa low-carbonand high-quality level,and set six goals of "low-carbon industry,low-carbon technology,low-carbon manufacturing, low-carbon chain,low-carbonservices,low-carbonculture",soas to ultimately realize theindustrialstructureof high-end,low-carbonconsumptionofeergy, utilization of resources recycling, cleanliness of the production process,and to contribute to the realizationof dual-carbon target.

A

Research&Development Background

Since 20o5,in order to deal with the problems of atmospheric ozone layer destruction,greenhouse effect and refrigeration systemsafety, MOON-TECH has taken the lead in the application anddevelopmentof thenaturalrefrigerant \mathsf { C O } _ { 2 } in China, and hassuccessively completed thedesign, testand demonstration of N H _ { 3 } / C O _ { 2 } screwcascaderefrigerationsystemand N H _ { 3 } / C O _ { 2 } screwsecondary refrigerant system, the design,selection and demonstration of the key equipmentand core technology:such as the material used in the \mathsf { C O } _ { 2 } system,CO2screwcomprssor, NH3/CO2condensingevaporator, C O _ { 2 } liquid supplymode, C O _ { 2 } refrigeration oil, { \mathsf { C O } } _ { 2 } system pressure and automatic control systemof { \mathsf { C O } } _ { 2 } system have beenscientifically designed,selected, tested,demonstratedandimproved,formingacompleteset of theoretical system for \mathsf { C O } _ { 2 } refrigeration system.In 2008,it passed the scientific and technological achievements appraisal of Shandong Province and won first prize of scientific and technological progress of Shandong Province, the special award of scientific and technological progress of Chinese Association of Refrigerationand otherawards successively.And because of its outstanding contribution to the global environmental protection, MOON-TECHwasrewardedbythe United Nations.

MOON-TECH's research and development on the CO2 refrigeration system technology was supported by the United Nations Multilateral Fund,andithasundertakenand completedtwo demonstration projects-"NH3/CO2cascade refrigerationsystemto replace HCFC-22"and the "NH3/CO2 secondary refrigerant system toreplace R22 screw single-stage refrigeration system " In 2009, MOON-TECHcompleted theconstructionof the firstsetof largescale NH3/CO2commercial refrigerationsystem in China.Itsstable operationand excellent safety,energysaving,and environmental protection effects have been highly praised by customers and domesticcounterparts.Withthecontinuouspromotionof MOON-TECH,now he { \mathsf { C O } } _ { 2 } refrigeration system technology iswidelyusedinmeatslaughtering,aquaticprocessing,beer and beverages,prepared food,fruitand vegetable processing, dairyproductsand colddrinks,industrial icemaking,cold chain logistics,wintersportsvenuesand other fields.The large-scale industrial application of { \mathsf { C O } } _ { 2 } refrigeration technology in the industrialandcommercial refrigerationindustryhasachieved significant economicand environmental benefits.

Therefore,among therefrigeration systemswith theevaporation temperature ranging from - 5 2 ^ { \circ } C to 0 ^ { \circ } \mathsf { C } ,the NH3/COsystem is the best refrigeration solution from now on orin the long run.

Figure l: Application Scope of NH3/CO2 Refrigeration System

At present, \mathsf { C O } _ { 2 } refrigeration systemtechnologyiswidely used in meat slaughtering, aquatic processing,beer andbeverage,prepared food,fruitand vegetable processing,dairy products and cold drinks,industrial ice making,cold chain logistics,winter sports venues,chemical process cooling and other fields.

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Main features

山 Safe Eco-Friendly EnergySaving NH3 in the high temperature part BothNHand CO2arenatural N H _ { 3 } istherefrigerant with the only,extremely small charging refrigerant. highest efficiency; volume of NH3; NH:ODP=0,GWP \scriptstyle = 0 ; { \mathsf { C O } } _ { 2 } has good heat transferand CO2 is safe,nontoxic and CO:ODP=0,GW fluid characteristics and excellent noninflammable, thus ensuring performanceat low temperature. the safety of people and foods.

System Type

NH3/CO2Cascade System

CO: Special Liquid Receiver With Pump Unit

NH3/CO2 cascade refrigeration systemapplicable to-52C ~ - 2 5 ^ { \circ } C evaporation temperature range

NH3/CO2 Indirect RefrigerationSystem

Product Display

C

CO2 Open-Type Screw Refrigeration Compressor

Featuresof CO2 Screw Refrigeration Compressor Unit

CO2Semi-HermeticScrew Refrigeration Compressor

AutomaticControl Console

Using \mathsf { C O } _ { 2 } , safeand environmentally friendly.
Adoptionof the fourth generationinternationally most advancedbilateralasymmetric full-arcenvelopeprofilewhichis characterized by numerical control grinding with high precision. ·Thecompressor with new-type cast iron materials resistant tolow temperature realizesreliable performancesunder low temperature working conditions.
Adoption of the high precision bearings of Japan NSK Company leads to long service life.
Adoption of British JohnCrane shaft sealsand the independent oil feeding cooling systemmake the sealing system more reliable. The precision of components is high resulting in low running noise, little vibration and long service life of the compressor. Theefficiency of the oil separator is high and its oil separation efficiency reaches 99.999%.
High efficiency oil cooler has high heat exchange efficiency and small volume.
Combination of forced oil feedingwith differential oil feeding is for lubrication; the oil way is controlled by a constant pressure valve to make oil pressure stable and reliable.
Simple and clean unit pipeline,small pipeline loss, simple and convenient operation.
An independent suction filter structure isadopted,thus facilitating thermal insulationinthe lowtemperaturearea,havingno influence onthecastingsinthehightemperatureareaof theunitbodyand ensuring the compressor normal work.
Directconnectionwith laminated joint slack,good automatic centering capability, long service life.
·Perfectsafetyprotection:lowdifferential pressureprotectionof the suction filter,ultra-high discharge pressure protection,overlow oil pressure difference protection,over-high oil temperature protection, etc.

Product Display

C1 CO2 Screw Refrigeration Compressor Unit

Thecompressor can be 道 hermetid with accmiding 宴 Thenrigureaons t meet 寳 Standarconfiguration to the actual use. theuser needs. automatic

Applicable Conditions

UnitModel

Product Display

C1 CO2 Screw Refrigeration Compressor Unit

Thecondenser-evaporator is both the evaporator of the N H _ { 3 } side and the condenser of the { \mathsf { C O } } _ { 2 } side in the N H _ { 3 } / C O _ { 2 } cascade refrigerationsystem, whereammonia liquidabsorbs heatwhen evaporating on the tube pass and { \mathsf { C O } } _ { 2 } gasis condensed into liquid on the shell pass.

The condenser-evaporator uses specially machined high-efficiency heat exchange tubes; thematerialsoftubeplates,flangesandbarrels usespecial pressure vessel steel plates resistant

tolowtemperatureandhighpressure;special weldingandflawdetectiontechnologiesareadoptedandstrictpressuretest regulationshavebeenworkedout,thusensuringbothhigh-eficiencyheat transferperformanceofequipmentand the requirements of airtightnessand strength of equipment during use.

TableofTechnical Characteristics

Product Display

C2 Condenser-Evaporator

The { \mathsf { C O } } _ { 2 } series liquid receiver isused to store { \mathsf { C O } } _ { 2 } liquid and to regulate and stabilize circulation volume.

Thematerials of the { \mathsf { C O } } _ { 2 } liquid receiver use special pressure vesselsteel platesresistant to lowtemperatureand high pressure;special weldingand flawdetectiontechnologiesare adopted and strict pressure test regulations havebeenworkedout, thusensuring the requirementsof airtightnessandstrengthof equipment during use.

Product Display

C4 CO2 Gas-Liquid Separator

The { \mathsf { C O } } _ { 2 } series gas-liquid separator isused to separate the liquid drops in { \mathsf { C O } } _ { 2 } gas out of the evaporatorinthe { \mathsf { C O } } _ { 2 } compressionrefrigeration system for the purpose of avoidingwet stroke of thecompressor.That is, { \mathsf { C O } } _ { 2 } series gas-liquid separatorisused to stabilize liquid level during pump running,to store the return liquid in the end equipment and piping during pump stoppage and, together with the liquid receiver, torecover all { \mathsf { C O } } _ { 2 } liquid in the system during shutdown. The top of the gas-liquid separator is provided with an auxiliary evaporator and can effectively preventultra-high { \mathsf { C O } } _ { 2 } pressure after shutdown.

The { \mathsf { C O } } _ { 2 } gas-liquid separator ismade of special steel plate for pressure vessel with low temperature and high pressure resistance,withspecialweldingandflawdetectiontechnologyadopted.Atthesametime,strictpressuretestregulationsare formulated to ensure the conformity ofair tightness and strength requirements of the equipment in use.

The { \mathsf { C O } } _ { 2 } secondary refrigerant modular unit consists of NH3 semi-hermetic compound two-stage refrigerationcompressor,oil separator,oil cooler, economizer, liquid receiver (concurrentlyas siphon tank),Condenser-evaporator, gas-liquid separator, { \mathsf { C O } } _ { 2 } canned pump,unit frame,protective door, electrical control,tc.

UnitFeatures

The protection level of thewhole unit is high and its installation position is flexible without need toset upaspecial machine room.
·Thematchingevaporativecondensercan runin dry format < - 5 ^ { \circ } C ambient temperature.
·The unit uses the variable frequency control mode torealizeautomatic power frequency conversion without disturbance.

Product Display

C6 CO2 Cascade Modular Unit

The CO2 cascade module unit is composed of NH3 refrigeration compressor unit, NH3auxiliary machine, CO2 refrigeration compressor unit, CO2auxiliary equipment,and electrical control. NH3 auxiliary equipmentincludes:condenser, liquid reservoir,gas-liquidseparator,throttle device, etc.; CO auxiliary equipment includes: Condenser-evaporator,liquid reservoir, gasliquid separator,drying filter,pump,throttle device,etc.

Unit Features

CO2refrigerantissafe,non-toxicand nonflammable.Itiswidelyusedinwarehouses, workand productionareasandother crowded places,without person harming or food polluting.

Asthehightemperature partof thecascade refrigerationsystem,theNH3refrigerant isonlyusedin themachineroom,andthe chargingvolume issmall.It is isolated from the low temperatureenvironmentand avoids direct contact with food.

The flow resistanceofNH3refrigerant is small, theunit refrigerating capacity is large, and the heatreleasecoeficient ishigh.

The CO2 refrigerant hasa large latent heat of evaporationanda high refrigerating capacityperunitvolume.It hasexcellent flowand heat transfer,which can significantly reduce the size of the compressor, heat exchangerand pipeline.The entire system is very compact.

The COP of the NH3/CO2 cascade refrigeration system is higher than the COPofa single refrigerant dual-stagecompression refrigeration system within a certain range of working conditions. Under the evaporating temperatureof - 4 5 ^ { \circ } C ,the COPof NH3/CO2cascade refrigeration system s 8 . 8 % higher than that of NH3 two-stage refrigeration system.

Both NHand CO2 are natural workingmediums,in NH3:ODP \scriptstyle = 0 , GWP \scriptstyle = 0 ; in COz:ODP \scriptstyle = 0 , GWP = 1 ，which has good environmental performance.

Product Display

C7 AIST CO2 Modular System

Semi-hermetic structure,cascade system function,maintenance unit,oil treatment function integration,piping,control line and power circuit wiring are all completed in the skid block, simplifying the installationof the project.

Box enclosure,no need for machine room, integratedactivedefense system,highersafety less charging volume.

Technical Features

Environment-FriendlyRefrigerant

The AlST carbondioxide modulesystem continuesto use safe,environment-friendly,and energy-saving NH3/CO2refrigerants.

Note:Other refrigerants canalso beused for the high-temperature grade.MOON-TECH can design and customize as required.

Upgraded Compressor

Open-TypeScrew Compressor

Semi-Hermetic Screw Compressor

VariableFrequency Regulating

Variable Frequency Starting:

It canstartwith load,no impactcurrent,and continuously adjust the speed.Simultaneouslychange the voltage and frequency,and continuouslyadjust the speed without reducing the torque.

Variable Frequency Operation:

In part load operation,the energy saving effectof variable frequency regulating ismuch better than thatof slide valve regulating.

Product Display

C7 AIST CO2 Modular System

AutomaticOilReturn

SmallAmmonia ChargingVolume.

Using oil level switch,automatically detect oil level and return oil.

Newevaporativecondenser,high efficiencycondenserevaporator, water-cooling type oil cooler and plate exchange economizerareused to further reduceammoniacharge,which canbereduced to about 2 5 % of the open module unit.

HW

ActiveDefense

Theactive defense systemin the machineroom is integratedinto themodule

ModularDesign

High standardization reducesdelivery time.

Product Display

C8 CO2 Air Cooler

Main Features

Thespecial aircoolerfor { \mathsf { C O } } _ { 2 } system is madeusing the special machining technology and pressuretested for high strength to ensure absolute safety; ·Theevaporator core ismade of stainless steel pipesand aluminum finsand designed for special heat exchange according to { \mathsf { C O } } _ { 2 } features;
·The heat transfer coefficient of { \mathsf { C O } } _ { 2 } is higher than that of other refrigerantsand it has small heat exchange temperature difference, thus effectively reducing weight loss offoods;
●Specifications are complete and two sorts of seriesspecial { \mathsf { C O } } _ { 2 } air coolerscan be provided;
·Multipledefrosting interfacesarereserved,and the defrosting modes can beadopted,including hot gas defrosting, hot water defrosting,electric heating defrosting,etc.

Main Features

Thefreezingplateisspeciallydesigned for { \mathsf { C O } } _ { 2 } and manufactured based on special processing technology.And ultra-high pressure test iscarried out to ensure the safety ofthe equipment;

The freezingplate ismadeof high-strength aluminumalloy flat platewith fast freezingspeed and low food consumption;

·The flat plate evaporator isprofessionally designedtoensure thattherefrigerantevaporates evenly,the temperatureof the flat plate surface is uniform,and the freezing eficiency is high;

The liquid supply and vapor return headersare all stainless-steel tubes,which can ensure frequent useina low temperatureatmosphere fora long time. Optimize the liquid supply and vapor return process to ensure the uniformity of liquid supply.

The lifting mechanism isstable and reliable. The professionally designed hydraulic system,highprecision hydraulic cylinder and high-quality hydraulic pump ensure that the hydraulic system can run stably fora long time.

Product Display

C10 CO2 Tunnel Freezer

Main Features

CO2special design

The freezer uses the special machining technology,and ultra-high pressure strength test andstrictnondestructive testing ofcore heat exchangecomponentsare performedtoensure safety and no leakage;

The exclusive"thermal fluctuation"air distribution technology iscombined perfectly with the high heatexchange performance of CO2soasto greatly improve the freezing speed and freezing quality of foods;

•Among the freezers of the same specification, the { \mathsf { C O } } _ { 2 } freezer has the smallest unit energy consumption.

•Imported high strength stainless steel plate beltareselected.The high-efficiency freezer is equipped with centrifugal fans dedicated to low temperature and humid environment, The fanshelland bladearemadeofstainlesssteel. The jet type freezer isequipped with a volute centrifugal fan.

Note:

Product Display

C10 CO2 Tunnel Freezer

Main Features

CO2 special design

olt is made based on special processing technology,and ultra-high pressure test is carried out to ensure the absolute safety of the equipment in use;

·Special heat exchange design for C O _ { 2 } refrigerant features,high heat exchange efficiency,small temperaturedifference, better than other refrigerant;

Axialfan isselectedand used,which ismore efficientthanacentrifugal fanand haslow energyconsumption;

Two-stagedesign,the freezingeffectof monomerratioanddryconsumptionisbetter than the one-stage fluidized quick freezing device;

Thefan,conveyorbeltand vibrationare all frequency control,which canmeetthe freezing requirements of different products.

Product Display

C12 CO2 Spiral Quick Freezing Device

Main Features

CO2 special design

●lt ismade based onspecial processing technology, and ultra-high pressure test iscarried out to ensure the absolute safety of the equipment;

Special heat exchange design for the characteristics of C O _ { 2 } high heat exchange efficiency, small temperature difference, is betterthan other working medium;

Thehelixisdividedinto single helixanddouble helix.The double helix can be low feeding and low discharging.The single helix can only be low feeding, high discharging or high feeding and low discharging. And canprovidea varietyof inletand outletdirection options as users required.

Theairdistributionmethodisone-to-one between evaporator and drum,and the freezing efficiency is much better.

The transmission mode adopts the unique slight tensioningtechnology,and theconveyorbelt isina uniformand bulky running state,which ensures the stable operation of the conveyorbelt.

Thedrumdrive frictionstrip ismade froma kind of " C " typeultra-high polymermaterial.Itadoptsa unique wrapping and fixing process to effectively prevent jumpingandat thesame timeeffectively avoid the deformation of the friction strip surface caused bythermal expansionandcontraction.

Multi-point faultdetection,real-timemonitoring of the working state of the quick-freezing device,which can immediately alarm anddisplaythefaultpointandthecauseof thefault,protectingeach transmissioncomponentfrombeingdamaged.

The control cabinet is introduced from an internationally renownedbrand PCcontroller,touchscreencontrol,visualdisplay and simple operation.The signal interface is reserved to upload the signal of the quick freezing device.

Thedesign purpose of the productisto maximize output and trouble-freeoperationtime,whileminimizingoperationand maintenance costs,reducing floor space,reducingwaterand electricity consumption,and achieving the best economicbenefits.

Note:

C13 CO2 Flake Ice Device

MainFeatures

CO2 special design

Theevaporatorismadeofstainlesssteelwith special processing technology,and the ultrahigh pressure test is carried out to ensure the safety of the equipment without leakage; ·Special heat exchange design for the characteristicsof \mathsf { C O } _ { 2 } , theefficiencyis high and temperature difference is small; ·Formed flake ice is beautiful inshape, uniforminsize,smallinvolume,lightin weight,and free of sharp edgesand corners; ●Fully automatic control,modular design, safeand convenientmaintenance; Special designs can be made according to theuser'sconditions.

D1 The Other Rifrigerant and CO2 Cascade Application

ApplicationFeatures

•lnorderto reduceoperationcostand refrigerantchargingvolume, the fluorine refrigerant and \mathsf { C O } _ { 2 } cascadeor secondary refrigerant system can also be adopted asan alternative in some specific environmentsand areaswhere ammonia cannot be used.
Of all refrigerant and { \mathsf { C O } } _ { 2 } cascade or secondary refrigerant system, NH3 has the highest efficiency and the best economy.
Thecostofthe system is higher than thatofthe NHand { \mathsf { C O } } _ { 2 } cascadeorsecondaryrefrigerantsystem.
The comprehensive cost of the system is lower than that using a singlealternative synthetic refrigerant.

WorkingMediumSelection

Good environmental protection characteristics (comparing ODP andGWP indicatorsofcommonworkingmedium) ·Highoperating economy (comparing the operating COP indicators ofcommonworkingmediums).R404AandR507Aarerelatively ideal choices.

EquipmentSelection

·R404Aand R507A system equipment isselected according to the conventional system.

For the selection of C { \mathsf { O } } _ { 2 } special equipment such as air cooler, quick freezing equipment, flake ice machine and so on,please refertothesection " C Product Display".

The heat exchange and structural design of the condensing evaporatorareslightlydifferentfromtheNH3/CO2cascade system.For the series specifications,please refer to " \subset 2 Condensing-evaporator".

E1 Automatic Control

AutomaticControl OfRefrigeration System Operation

Thecontrol processschemeis prepared for compressorunitcontrolbasedonthe IEMCintelligent energy-efficiencymanagementandcontrolsystemin combinationwith the concept of variable frequency control and compressor group control according to the technological featuresof users.

Thevariable frequencycontrol mode isused for thefanof theevaporativecondenser,including two modes inwinterand summer; the condenser runsin evaporativecolddrymodeatambienttemperature lower than - 5 ^ { \circ } C inwinter.This ensuressafe operation of equipment and the energy consumption of the compressorat low condensing pressure is further reduced.

Different temperaturesof theair cooler incold room are set according to peak-valley electricity prices to reduce the operation cost.

Fullautomaticdefrostingand precisecontrol of defrosting pressure and time to ensure defrosting process safety and to minimize the impact of defrosting on the whole energy consumption of the system.

·Multi-channel networkremotemonitoringand diagnosis,supportingremotemonitoringof equipment running state with mobile communication equipment, wireless network, etc.

Refrigeration SystemSafety Control

·Theactive safety defensesystem is used to prevent ammonia refrigerant leakage inmachine room;
•"Water curtain"sprinkling and IEMC linkage control function; ·ln the event of leakage in machine room,the system automatically implements protective measures according to the procedure, thus ensuring personnel safety to the greatest extent possible;
·The terminal life self-checking functionis loaded!When the sensorcore isaboutto reachitsservice life,thesystemwill automatically remind the user of replacing it;
·Intheeventofammonia leakageinanarea,theactivesafety defensesystemwillsuccessivelygiveanaudibleandvisualalarm according to the ammonia leakage quantity.
·Emergencystartingof emergency exhaust equipment,water curtain sprinkling and IEMC linkage control function;
·Audible and visual alarmisused to remind personnel of ammonia leakage accidents;
·Emergency exhaust fansare used to exhaust the leaked ammonia outdoors;
·Water curtain sprinkling function is used to separate hazardous areas;
• If ammonia leaks further, the IEMC linkage control function will shut down the compressors in the corresponding area.

Relevant System Application Technologies

E2 Improvement of Existing Refrigeration System

MainFeatures

Theequipment intheexistingmachine room is kept unchanged; the cooling equipment inthecoldstorageisreplacedbyCOspecial cooling equipment;inaddition,a set of COz condenser and canned pump are added.

Theoriginal ammonia system equipment is utilized to thegreatestextentpossible,thus realizingsmall reconstruction investmentand quick construction speed.

The operation efficiency is improved and the investment recovery period of the system is short.

·After system reconstruction completion, NH3isused onlyin themachine roomand an active ammonia defense system is set up inthe machine room,so system operation is safer.

E3 Oil Cooler Load Terrace Heating

The oil cooler of the compressor unit is used as the terrace heating source,thereby reasonably utilizing heat quantity,reducing the cooling load of the condenserand achieving thepurposeof energy saving.This mode has lowerengineering cost than the mode of burial of conventional vent pipes.

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