Evaporative Condenser Chiller / Dual Source Heat Pump

H.Stars evaporative condenser chiller adopts an evaporativecondenser,whichusestheevaporationof watertoabsorblatentheattocondensetherefrigerant vapor.The heatreleased fromtheevaporationof refrigeranttransferredto theouterwater film by theoil film,pipe wall and dirt,and then the heatis transferredtotheairbytheevaporationofthewater. Compared with ordinarywater-cooled condensers

ModelNomenclature

andair-cooled condensers, thewaterconsumption of evaporativecondenseris less,andthefanairvolume isalsosmaller,soEvaporative Condenser Chillerhas theadvantages of lesswater consumption,lowsound level,lowcondensingtemperature,energysavingand environmental friendly.It isespeciallysuitable foruse inareaswhere water is scarce and the weather isdry.

Lowsystem operating costs

Compressor input power is at least 1 0 % less_than other cooling tower/condenser systems,and 30 % less power than air-cooled condenser systems; fan power consumption is the same as cooling tower/condenser systems,and it is about1/3 powerofanair-cooledcondenseratthesame specification.Due to the lower pump head and smaller waterflow,thepumppowerisapproximately25percent of the pump power required in a typical cooling tower/ condensersystem.

Lowinvestment cost

The evaporative condenser integrates cooling tower, condenser,circulating water tank,circulating water pump andwaterpipe,whichreduces equipment and installation cost such as cooling towers,circulatingwater pumps and waterpipesin thecoolingtower/condensersystem.Since the evaporative condenser utilizes the evaporative cooling, it can effectively reduce heat exchange area,the number of fans,and power consumption of fan motor.

High efficiency shell and tube heat exchanger Highefficiency finevaporator

Theindoorunitadoptsthe self-developed and self-produced high-efficiency shell-and-tube heat exchanger,and the electronic expansionvalve is combined with the orifice platetothrottletherefrigeranttoensurethattheevaporator isalwaysinahigh-efficiencyheatexchangestate.IPLV reached10.7,partial load value exceeds13.

The dual-source heat pump unit adopts outdoor air-cooled fin-type evaporator,which use air as the heat source during winter,compared with the ground source heat pump system, theinvestmentcost isgreatlyreduced,no special machine roomisneeded,andthecivil constructioninvestmentcost isreduced.Multi-purpose,cooling in summer,heating during winter.

Savespaceandwater

The evaporative condenser saves the valuable space by combining the condenser coil and the cooling tower together, beside smallerpumpsand pipelinescan be installed compare tocoolingtower/condensersystem.Evaporativecondensers requireonlyabout 50 % ofthe upwind area ofan air-cooled condenserat the same specification.Moreover,itcostsless waterconsumption 3 ~ 5 % ofwater-cooled condenser),and the air flow is small.

Heat recovery (optional)

H.Stars (Guangzhou) Refrigerating Equipment Group Ltd. isthefirst manufacturerin Chinato usecondensing heat recovery technology (patent number:ZL03223588.7). Itusesaheat recoverydeviceto recoverthewaste heat generated during the refrigeration process,which provides customerswith chilledwaterand supplylargeamountof free hot water.

IndoorUnitofEvaporativeCondenseChiller

Evaporative Condenser Chiller

Standard configuration

High-efficiency flooded type evaporators and evaporative condensers further enhance the energy efficiencyof the chiller.The evaporative condenseris low water consumption and therefore it is suitable to useinareaswithwatershortagesand dryclimates.Thisserieshave8 standard specifications,the coolingcapacityrange is423kW-1860kW, and the chilled water outlet temperature range is 5 { - } 2 0 ^ { \circ } { C } Other than standard specifications,special productslikeheatrecoveryfunction, high voltage unit, explosion-proof unit,anti-corrosion unit, etc.can be customized according to customer requirements.

Screw type dual source heat pump unit

Standardconfiguration

Unit adopts efficient fin-type evaporator, evaporative condenser and shell-and-tube heat exchanger (cooling and heating mode).With all those parts,unit combines the functions of evaporative cold water chillerand heat pumpunit.In addition it integrateswatersource and airsource heat pumpunitsall together.Considering thewhole system comprehensively,under the same cooling capacity and condition,the Evaporative Condenser Chiller compressor consumes 20 % lesspower than thewater cooled chiller and 40 % lower than theaircooled chiller. The cooling capacity ranges from 40okw to 1 1 0 0 { k w } ,the outlet chilled Water temperature ranges from5 to 2 0 { } ^ { \circ } { C } ,the heating capacity ranges from 3 5 0 { k w } to 9 5 0 { k w } ,and the outlet hot water temperature ranges from 4 5 ^ { \circ } { C } to 5 0 ^ { \circ } { C } Suitable for areaswhere wateris limited.

Evaporative Condenser Chiller Compressor

Thecompressoradopts world known twin-screw compressorwithhigh-eficiency5:6asymmetricscrew rotordesign,whichis 2 0 % ~ 3 0 % higherefficiencythan the general compressor.

Specificdesignforenvironmentallyfriendlyrefrigerant R134A,R407C,lowfailurerate,stableandreliable operation,no fault running time,50oo0-80o00 hours.

Unique structure of solenoid valve foroil and energy adjustmentcanbeequippedwithsteporstepless control adjustmentaccording to project needs.

Theevaporatingtemperaturerangesfrom- 4 0 ^ { \circ } C to 1 5 ^ { \circ } C （20 andthecondensingtemperaturecan beupto 6 5 ^ { \circ } C .The compressorhasobtainedtwointernational certifications of1809001and1809002aswellasmulti-nationalpatents inEuropeandAmerica.Built-inmotorprotectionmodule includes overload,reverse,phase loss protectionand fault indicator light to indicate the type of fault.

Built-in high-efficiencyoiland gasseparatorandoil tank ensurestableoilsupplytothecompressor.

Dual source heat pump dedicated compressor

The dedicated compressor has a medium pressure valve, whosepressureiscloseto theintermediateofthetwostage compression,for the economizer. This economizer connection design can achieve no compressed return loss, so as to ensure the compressor can keep running in optimal condition through the whole loading phase.

Built-in economizer with specific flow path provides reliable protection to the compressor.

According to the characteristics of the user's project, different compression ratios are designed to prevent over-compression or under-compression,as a result the compressorcanoperateattheoptimumefficiencyway.

During the heat pump condition, the compression ratio is relatively high,aswell as the power consumption.In this case,the economizer can reduce the power consumption of the compressor thus achieves a larger energy efficiency ratio,increases the cooling capacity,and improve efficiency and reliabilityof thesystem.

Theunique motor cooling circuit design ensures reliable coolingof themotorwhile guaranteehigh efficiency of the compressor,so that the compressor can operate inawide rangeand more adaptable.

Thepatented designs "automaticallyunload slider" is the pure mechanical structure design. It is simple and effective to achieve the light load startup of the compressor.

Main Components (continued)

Evaporative condenser (outdoor condenser)

SPL series evaporative condenser is an effective heat exchange equipment developed base on the most advanced heat exchange technology in the world.

The SPL series evaporative condenser uses water and air as a cooling medium to transfer heat from high-temperature gaseous refrigerant in the coil.After cooling,the refrigerant is condensed into a liquid state from gaseous state.Internal include water distribution system, condensingcoil,water removal system,etc.External include circulating water pump, electronic descaling instrument,and axial fan atthe topofthe coil.Whenthe axial flow fan operates,internal become in a negative pressure state.During operation,the cooling water is distributed by the water distribution system and sprays on the coil surface uniformly under strong wind. The high-temperature gaseous refrigerant enters from the upper part of the coil,and then condensed into liquid form refrigerant and flows out from the bottom of the coil. During the process,the refrigerant transfer heat to thewaterand air outside the coil,and the heat transfer rate is significantly improved by the wind.After the cooling water and air absorb heat,the temperature rises sharply,part of the cooling Water is vaporized into water vapor, and a large amount of heat is taken away by evaporation of the water and is discharged into the atmosphere by the wind.At the same time, the water in the hot gas is cut off by the dehydrator,and the cooling water that has not been vaporized flows back to the sump,after that the circulation pump re-sent the water to the water distribution system to continue the cycle.The water lost because the evaporation is automatic refueled by the float valve in the sump.

Low operating cost, energy saving and environmental protection

Due to the unique structure and the special high thermal performance of the product, the condensation temperature is low.By that,the product isa high COP and water-saving,low sound level,no pollution,and low maintenance cost product. It is an energy saving and environmental protection product.

Highefficiencyevaporator (indoorevaporator)

The heat exchangeris divided into two parts,the lower partistheheatexchanger,and itadoptsthehigh-efficiency heat exchange copper tube.The heat exchange copper tubeissubmergingin the refrigerant,and therefore the heat transfer efficiencyis high.Theupper part isa gasliquid separator; the height difference isused to separate the liquid refrigerant.At the same time,the larger size ofthe shell can reduce the gaseous refrigerant flow rate; prevent the refrigerant droplets from being carried out along the gasoutlet.Fully separate the dropletsto avoid the liquid hammerphenomenon of the compressor.This layoututilizestheheightof the space,thediameterof the heat exchangerand thewidth of the wholeunit,thereby reducing the floor area of the unit; the performance of the unitisefficient,clean,safe,energy-saving,beautiful,and durable.

Adopts evaporationtubewithhighlyenhanced surface,and itiscompletelysubmergingintherefrigerant,asaresult the heat transferefficiencyisrelatively high.The gaseous refrigerant does not need to be superheated; therefore the evaporation temperature can be greatly improved.

After the refrigerant evaporates and returns to the compressor,therefrigeratingoil willflowdownward and be concentrated atthe bottomof the evaporator,which ismore convenient to return oil.

Highefficiencycondenser(doublesource heatpumpunit indoorunit condenser)

ThecondensershellismadeofQ345Rsteel,and theheat exchange tubeisdouble-sided enhanced high-efficiency copper tube.It is used to condense the high-temperature and high-pressure gaseous refrigerant into a liquid state with certain degrees of sub-cooling,by that the refrigeration unit can run efficiently and energy-saving.

Economizer

The economizer shell ismade ofQ345R steel and the heat exchange copper tubeis high-efficiencymicrofin tube. The liquid refrigerantaftercondensation from the condenseris furthercooledbypartoftherefrigerantin theunit,which increases the sub-cooling and let the unit run more efficiency.

Fin evaporator (double source heat pump unit outdoor evaporator)

1.V-shape structural air cooler, efficient and simple;
2.Copper tube sleeve aluminum fin design,uniform wind speed;
3.Leading special finned design and most reasonable copper tubearrangement,V-shape installations,improved condenser heat transfer rate,reduce fan operating sound.
4.The copper tube and the aluminum fins are_closely connected,and the performance is high and stable heat exchange.
5.Advanced process equipment and fin mold ensure the quality of the product.

Economizer

Finevaporator

PLC+ full color 7 inch touch screen

ControllerAdvantages

1.Intelligent control,automaticenergyadjustment enablestheunitoperatesefficientlyatthemost economicalworkingcondition.Thecompressorstarts andruns accordingto therunning time,reduces thestartingcurrentof theunit.It includes overload, shortcircuitprotection,anti-freezeprotection,system pressuretoolow/highprotection，chilledwaterflow protection,etc.Controller integrateschilled water pump,evaporativecondensersystemcontrol logic

2.The processing speed is fast and the PLC is equippedwith Siemens special high-speed processor chip.Basicinstructionexecutiontimecanreach 0.15us,whichisfaraheadinthesamelevelPLC,a powerful "core"

3.Extendablefunction,touchscreenintegratedUSB port,supportconnectmouse,keyboardand flashdrive torecorddataandstorethealarmcontent.

4.Convenient network connection,multi-unit network connection simultaneousmonitoring function is supported;convenient communication port support Modbus RTUor Ethernet OPC protocolcommunication.

Fault display and processing

40STD series double source heat pump unit technical parameters (cooling and heating function)

40STD Evaporative Condenser Chiller unit technical parameter (cooling function only)

40STD series double source heat pump unit technical parameters (cooling and heating function)

40STD Evaporative Condenser Chiller unit technical parameter (cooling function only)

Note:

Double source heat pump unit indoor and outdoor unit Dimensions drawing

Evaporative Condenser Chiller unit indoor and outdoor unit Dimensions drawing

Double source heat pump unit outdoor evaporator unit Dimensions drawing

Double source heat pump unit outdoor unit Evaporative Condenser Chiller unit outdoor unit dimensions drawing

Pipe connection diagram / (liquid refrigerant pipe and water pipe)

Wiring diagram

Unit installationdiagram

Indoorunit installationdimension (mainunit)

Outdoor unit installation dimension (fin type condenser)

Importantnotes

1.Pipe support spacing should be less than 1.5 meters;
2.Smooth incision and no burrs;
3.The pipe shall be polished and blown cleanwith nitrogen gas before welding;
4.Nitrogen gas should be filled in the pipeline during welding;
5.When the steel pipe is.welded,argonarc welding shall be used before electric welding;
6.When the copper pipe is welded,it should be welded from the bottom orside,and try not to weld from thetop;
7.No water,dirt or dust should enter the pipe during the whole construction process;
8.Thetotal length of refrigerant pipeline shall not exceed300meters;
9.Whentheoutdoorunit isabove the indoorunit,the maximum height difference isnotmore than80 meters; 10.When the outdoorunit isunder the indoorunit,the maximumheightdifferenceisnomorethan50meters.

Designschemefor return oil trapof refrigerant pipeline

Standardconfiguration

When main unit is higher than outdoor unit (evaporator),it has ariser between evaporator and main compressor suction inlet, since compressor oil will not evaporate in evaporator and it will be accumulated at the bottom.When Oil trapis installed at the bottom of the evaporator,oil accumulation at the bottom of the evaporator will be significant reduce.As long as the oil trapisblocked,thepressure difference of both sidesis built, once the pressure is big enough,pressure different "pump" compressor oil up,until it reach the horizontal suction pipe,the compressor oil is easy to go back to compressor.

If you are concerned that the riser is too long to reach the top ofthe pump,you should consider setinga S shape oil trap for the riser suction pipe at every certain height difference (say 8 meters) to allowthe compressoroil return to themainunit.

Outdoorunit is higher

When the main unit is much lower than the outdoor unit (evaporator),the compressor oil can return to the main unit without the oil trap since it can return to the main unit by gravity,butwhenoil returnamountis too large,it maycause liquid hammer phenomenon to the compressor. Oil trap should beinstalled at every certain distance (such as 10 meters) on the main vertical suction pipe,in order to let compressor oil returned to the unit gradually.

When the vertical pipe exceeds 10 meters,oil trap should install every10 meters or less.

The oil trapismade of two U-shaped curves orP-shaped curve,and the height is generally 3-5 times of the pipe diameter.

Heatrecovery

H.Stars Group has been engaged in research andpracticeofheatrecoverytechnologyand application foralongtimeandhasaccumulated alotofexperience in heat recoveryand utilization with national patent of heat recovery approved.

Freehotwatersupplied all yeararound,cost andenergysaving,itnot onlyreduces the heatpollutionto the environment caused by condensation heat from the chiller,but also decreases the running cost and the noise from the cooling tower.

Process description of heat recovery system

1.Chiller produceschilled water for air condition of thebuilding,and keeps the temperatureof the buildingatacomfortable temperature;

2.Duringchillerproduce chilled water,the heatgeneratedby thechillerisrecovered throughtheheatrecoveryunitand it heating upthewaterin the circulatingwatertank,and thehotwaterin the circulatingWater tank is provided.

3.This system provides low cost hot water, but the supply of hotwaterwill depend on thechillerusageand seasonality.When heat recoveryisused,anotherhotwater auxiliary system should be installed for backup.

Chinamachineryindustryscienceand technologyaward

0 Circulating hotwater tank
Circulating waterway shall install Process descriptionof heatrecovery Ddnneeenrrgtge geentrgrgr
thebutterfly valve,one-way valve,
Y type filter,water pressure gauge,
thermometerand otheraccessories
according to requirement of the project Heatrecoverysystemflowchart

HeatExchangerTube

CondenserHeatExchangeTube

EvaporatorHeatExchangerTube

ImportantNotice:

Heatexchanger is the key components of the chiller unit,whose technologydirectlyaffects the quality of theproduct.Also,the heat exchange tube,which is theonly componentof the heat exchanger in contact withtheambient,closelyaffects thelife of theunit.

Cloud service (remote monitoring)

The thickness and material of the heat exchange tubeare very important.Customers can choose the suitablematerialand thicknessof heat exchanger tube according to theairandwater quality.

CentralA/Ccloudservicesystem

Cloud service value:
Remote control adjustment
Remote monitoring
Remoteupgrade
Fault warning
Remote diagnosis
Product distribution management
Historical dataanalysis

VFD (Variable Frequency Device)

Stableandreliable

TheVFD integrates industrial chiller with simple compressor structure,and adopts themotor speed to control theoutputtoachievetrue steplesscontrol.to improve compressorreliability.Refrigerant suctioncoolingmotorat lowtemperature,more stable.

Easy installation

VFDindustrialchillerintegrateswithVFDstartercabinet into one combined unit,simplifyingtheuser sitewiring. Refrigerantand compressoroil ischarged beforeshipping, savinguser'sinstallationandcommissioningcosts.

Highefficiencyand energysaving

Adoptsworldclass variable frequencydrive technologyto improve integrated partload value(IPLV) up to10.

VFD advantages

VFD is a soft start; reduce the impact of start-up current;

TheVFD has its ownDC reactortominimize harmonic interference;Optionallow-harmonic filter.VFD input power meetsthe IEEE-519 specification forharmonic distortionwith harmonic filter over-temperature protection and capacitance switching.

VFDcompressor/VFD fancontrol

Multi-VFD compressors

Optional items

□Anti-sound panal □Compressor oil □Low-temperature cooling medium □Electric heater

□Air handling unit (AHU) □Finevaporator roof

H.Stars Group

H.Stars(Guangzhou) RefrigeratingEquipmentGroupLtd., establishedin1992,inEconomic&TechnologicalDevelopment ZoneofGuangzhou,China,composedof8subsidiariesto provideone-stopsolutionto HVAC customers, specializing inR&D,oitaoA grows,H.Starsgroup expandsits businessglobally and has soldto53differentcountries.H.StarsGroupisawardedwith "NewandHighTechnologyEnterpriseinGuangzhou"andhas become the training baseof many universities bothinChinaand abroadvia technologycooperation.

H.StarsGroupsuppliesan extensivelineofCommercial andIndustrial Energy Saving HVAC products including: AirCooledChiller,WaterCooledChiller,IndustrialChiller, CentrifugalChiller,Magneticoilfreecentrifugalchiller,MultifunctionChiller,HotWaterUnit,HeatRecoveryUnit,Heat PumpUnit,ondensingUnit,GlycolChiller,hellandube HeatExchanger,AirHandlingUnit,FanCoilUnit,ooling Tower,etc.alltypeofHVAC products.

H.Stars Group hasbeendedicated in qualityand innovationand istechnically strongincommercial and industrialapplicationasaHVACmanufacturer.Apartfrom obtainingplentyofenergy-savingproductpatents,H.Stars Grouphasachieved CEcertificationsforPressureVesseland standardchillers,BR1,ASME,IO9001:2000,ISO14001:2004 and other certifications.

Agood reputationofH.StarsGroup hasbeen builtand deliversa fullHVACservice tocustomersworldwide.Our productsarewidelyappliedinindustriesforcoolingofLaser generators,Weldingelectrodes,Cutingmachines,Electric sparkmachines,Extrusion process,Hydraulic System, Electroplating,Ultrasonicleaning,onlatingfilm,lectronic facility,Electrical appliancecomponents,CompressedGas Dehumidification,Dairy and Beverage Cooling processing, Pharmaceutical and Biological products,Medical equipment, GlassCoating,TemperedGlassandCultivationSeaFood.

H.StarsGroupwill continue to develop energy saving and environmental friendlyequipmenttocreate"TheEfficiency Planet"asourobligation.Byfocusingoncustomers'needsand wantsinordertocontributemoreourpotentials,fromnowon, H.Stars Group will hand in hand with you to bea shining star in the foreseeable future.

H.Stars (Guangzhou) Refrigerating Equipment Group Ltd

Address:No.1Guoyuan4thRoad,Guangzhou Economic&Technological Development Zone,HuangPuDistrict,Guangzhou,China ZipCode510530