H.Stars Programmable Multi-purpose Heat Pump Drying Unit

H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

·Aforeign invested enterprise founded in 1992.

H.Stars (Guangzhou） Refrigerating Equipment Group Ltd.in Guangzhou Economic and Technological DevelopmentDistrictisengagedinthebusinessofcentralairconditioning，refrigeration,andindustrialcooling andheating equipment.Asanal-around player integrating R&D,productionand sales,thecompanyprovides one-stop production and construction service spanning multiple industry chains.

^ { 3 0 + } years dedication on cooling and heating equipment manufacturing.

For 30 years H.Stars has been focusing on the production of air-conditioning,coolingand heating equipment, especiallyon thedevelopmentand applicationof customizationcoolingand heating equipment,with more thana thousand special devicesat its disposal to meet the requirements of special industries.

4factories,80 thousand industrial parks,120,0o0 plus customers.

The four manufacturing factories of H.Stars produce HVAC equipment,air handling unit,chiler,heat pump, pressure vessels,and heat exchangers;H.Stars Group coversawide range of industry chains to provide choice productsand services tomillions ofcustomers.

H.Stars Programmable Multi-purpose Heat Pump Drying Unit

Modulardryingequipment

Functions

H.Stars programmable multi-purpose heat pump drying Machine offers one-stop hot air drying solution, wheredry hotairproducedbythe heat pump isused forproduct or food drying.Compared to other hot air productionmethod,itismoreenergysaving,efficient, and environment friendly.

Consisting of optional heat pump,drying chamber, feederdoor,drying rack,drying pan,airsupplypipe, airreturn pipe,and moist air valve, the complete equipment iscentrallycontrolledbyamicro-processor forfullyautomaticoperation,nospecial operator needed.

For years,the equipment has been widely used to dryparts,rawmaterialsandfinished products,timber, Chinese crude drugs,and feedstuff in the industrial sector,aswellasagricultural products,suchas cereal,mushroom,fruitand vegetable,and fishery products.

Large-scale drying equipment

Drying functions and applications

·Multi-purpose air energy drying equipment for drying and dehumidification.
·One-piece design, integrated and programmable functions.
* Built-in heat recovery device for heat energy recycling.
* Environment friendly,pollution free,safe,no risks.
·A design life of 1 5 + years.
* COP 2 . 8 + ,4times the energy effciency of electric boilers.
* Automatic operation,no need of special operator.
* Modular structure,easy to install and remove.
·Immune to ambient temperature and is suitable for use in both the northern and the southern regions.
·Immune to badweathersuchas overcast,rain,and snow.
·Smart control,fully automatic,unattended operation.
·One-keystartmode,freeof complexoperation.

Schematic drawing of moisture discharge

Parameters of temperature,humidityand duration timevary bydryingprocess,which canbe set by the userwith the helpofthe touch screen.This process ofsetting parameters on the touch screen is called "programming".

Up to ten dryingstages can be setduring the programming foreach dryingoperation.And each stage can be so set to have its own drying temperature,humidityand duration time according to thematerialtobedried.Operatingconditions,such as heating,dehumidification,moisture discharge, andauxiliaryelectric heating，canbesetaccordingto weatherorotherenvironmental conditions.

Programming procedures

Cancellation for reprogramming

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Setting of processing programs

Setting of regular programs

Moisturedischargefunction

High-temperature hot air produced by the heat pump using the energyitabsorbs from theairissent into the drying board room,and there the high-temperature hot

air turn water into vapor,which is in turn sent out of the board room throughan outlet.

Mixedfunction

The equipment has a function of intelligent switching between two drying methods:open-loop dehumidification and closed-loop dehumidification; itssensibleand latent heat recovery system helps toprevent lowheatingefficiencyin lowtemperature environments,andits freshairpurificationsystem effectivelyremovesdust,debris,grease outof the drying space to better retain the temperature.

Dehumidificationfunction

Theair in the drying chamber is heated repeatedly incyclesto removethe moisture in thematerial. During the process of dehumidification,the heat pump

evaporatorabsorbs the latent heatof the condenser toprovideheatenergyforheating,therebytokeep the cycle run to dry the material.

Features

1.Multi-functional drying:The equipment has four functions:heating,dehumidification,moist discharge, andautomatic.

2.High efficiencyand energy saving.The energy used by the heat pump dryer to heat the air mainly comesfromrecoveredsensible heatand latent heat containedin thewarmandhumidairdischarged from thedryingchamber.The only input energy needed is that for the heat pump compressor,which,combined with the unique advantage of the heat pump that it consumes onlyasmallamount of powerto producea lotof heat,givesa heat pumpdryingdevicea SMER (the water content in the wet material removed by every unit of energy consumed) of 1 . 0 ~ 4 . 0 \mathsf {kg } / \mathsf { k W h } compared to that of traditional convection dryers of 0.2 \~ 0.6kg/kWh.

3.Precise temperature and humidity control:When thematerialis demandingon the temperatureand humidity of the air entering the drying chamber, the evaporation temperatureof theworkingfluidin the evaporatorand the condensation temperatureof the condensercanbeadjustedtomeetthetextureand appearancerequirementsofthematerial.

4.Recovery of usable and volatile components: somematerialscontainvolatile components(such asfragrance);when theyarebeingdried in the dryingchamberof the heat pumpdrier,suchvolatile componentsmayvaporize togetherwithwater into theair.When theaircontainingvolatile componentsis cooledbytheevaporator,thevolatilecomponentswill also liquefyandthenbedischargedtogetherwith the condensed water.The condensed water containing the volatile components then can be collected,and theusable and volatile componentsseparated byan appropriatemethod.

5.Environment friendly and pollution-free:with the dryingmediumworkinginaclosed systemwithinthe heat pump drying equipment, there is no pollution causedbymaterialdust,volatilesubstancesandodors thataredischarged into theenvironmentwith the driedexhaustair;and thewaste heatin theexhaust airof the drying chamber is directly recovered by the heat pumpto heat thecoldanddryair,therefore there is no thermal pollution to the environment from the

equipment.

6.Low-temperature drying:By controlling the workingconditionsof theequipment,temperature of the hot dry air in the drying chamber can be kept between 2 0 ~ 8 0 ^ { \circ } { \mathsf { C } } ，which can achieve high-quality drying for most heat-sensitive materials;and the closed circulation of the drying medium helps avoid contamination of materials by impurities resulting from external air exchange station,which is especially important for food,medicine orbiological products.

7.Dryingofcombustiblematerials:Whenthematerial issensitive to oxygen in theair (prone to oxidize,burn orexplode),an inertmediumcanbeused insteadof air to provide oxygen-free drying process.

8.The heat pump dryer is suitable fora wide range ofmaterials.Materialssuitabletobedriedaremainly thosethat canwithstanda temperature between20 and 8 0 ~ % during the drying process,or those that can withstand higher temperatures but it is more energyefficient or safer to do so by usinga heat pump. Materialsthathavebeenmuchresearchedandapplied includewood,grains,seeds,edible fungi,medicinal materials,seafood,biologicallyactive products,tea, paper,etc.

9.Compared to other low temperature (temperature of air entering the drying room < 4 0 ^ { \circ } { C } )drying methods (suchasmicrowavedrying，vacuumdrying,freeze drying）heat pump dryer has prominent economic efficiencydue to its small initial investment in equipment and low operating costs.The most valuable partsofa heat pumpdryingequipment is the heat pump and the drying chamber;and its drying chamber is similar to an ordinary convection drying chamber,imposing no special requirements on air tightnessand pressureresistance.

10.Compared to ordinary drying devices (temperature ofairentering thedrying r o o m > 4 0 q ）,heat pump dryers has higher initial investment due to the higher costof heat pump thanaelectricair heatingdevice,or agasorcoal-fired boiler;however,heat pumpdryer's highenergy efficiency,and low operating cost still manage tomakeitsuperior intermsofcomprehensive economic benefit.

Technical parameters of heat pump drying equipment

Notes:

Technical parametersofheat pumpdryingequipment

Refrigerant:R22 Power supply:3Φ-380V-50Hz

Notes:

Thedrying and heat insulation chamber uses metal sandwichplatesmanufacturedwithpolyurethanerigid foamingprocess,wheremetal platesareplacedona plate convey beltsystemdesigned on the basis of the principle of rolling barrel,and the polyurethane foaming agentissprayedon themetal platesbyaspraying device,and then high temperature treatment isapplied to complete the foaming process of polyurethane between themetal platesto producea three-layer integratedpolyurethane(PU,PIR)metal sandwich plate.

Polyurethane is currently recognized internationallyas amorepreferredthermal insulationmaterial,because it has low thermal conductivity， good load resistance, andhigh flexural strength,absorbsnowater,does notdecay,is immune to insectand rodent bites,and hasgoodflameretardancy,andalargetemperature resistance range. Itcanreduce heat transferarising from temperaturedifference between insideand outside to achieve efficiency of the drying system to the greatest extent.

Availablefoamthicknesschoices:60，75，100，120, 150,180,and 2 0 0 \mathsf {mm }
Available metal plates:embossed aluminum plate, stainlesssteel plate,colored galvanizedsteel plate, phosphate-treatedsteel plate,and galvanized steel plate.

1:Extra-thickthermal insulationboard provides excellence performance in insulation,fire-proof, corrosionresistance,and heatresistance.Good vibrationresistance;flexiblecombination.

2:Hook-type cold storage board,good sealing tightness,light weight,high compressive strength, easyto install andcombine.

Coefficient of performancecomparison

Coefficientof performance comparison

Dryingequipmentcomparisn (form)HStarsProgramableMuliprposeHeatPuyingUnit

Moisture discharge type

Moisture discharge dryers use traditional open-loop dryingmethod.Nowadays,many companies,having cometo recognize lowenergyefficiency,high costs andotherproblemsofotherdryingmethods thatuse sun,coal,or boiler etc.,have introduced driers that aregenerally considered themost energy-saving. However their actual usage has demonstrated high energy consumption,uneven dryingeffect and other problems.

When an "open loop"system works,the main machineabsorbs energy from the airto produce high-temperature hot air,which is sent to the drying chamber to takeawaywater vapor.Thismethod has its own problems:

1.Entry of external dustand other pollutants
2.Air supply volume must be moderate,or it will cause

alargeamountofwatervapor,whichwillcondense and drip
3.Energy is directly discharged with water vapor, causing huge heat loss
4.The machine may not be used in low ambient temperatureinwinter
5.Its complicated structure prevents easy installation andmaintenance

6.It may result in lost nutrients and reduced quality; lackof strong air convection makes it easy for materialsatthevicinityofthehotairoutlettobeover dried,which consequently necessitates frequent manual stirring.

Thistype of equipmentissuitable for:grains,dried beancurd sticks,fruitsand vegetables,etc.

Dehumidification type

Dehumidification dryers adopt closed-loop drying method.Dust,debris and greasemayaccumulate onthe heatexchangerof thedrierafterlongtime use，which willaffect the dehumidification effect, and eventually prevent desired drying effect and shortenthe service lifeof themachine.What is more,its heating rate may not be high enough during processes requiring medium or high temperature drying to produce the drying effectsatisfactory to the customers.

1.Residual debris,grease and other dust on evaporatormayaffectheatingrate
2.High power efficiencyin the early stage,but in the laterstage,thereareproblemsof lowheatingrateand high power consumption
3.Bad effect on service life of the machine and higher frequencyof failures

Thistype of equipment issuitable for:fruits,and flowers, etc.

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Multi-functional type

The multi-functional type of dryer combines the advantages of both open-loop and closed-loop methods,and overcomes various shortcomings of traditional open-loop heat pump dryersand closedloop heat pump dryers.

The multifunctional dryer is not affected by the ambienttemperature;whenthesettemperatureis reached,itcan intelligentlyswitches between openloopand closed-loop drying methods;its sensible andlatent heatrecoverysystemhelpstoprevent low heating efficiency in low temperature environments, anditcanachievehighheatingrateeveninultralow temperature environmentswithout the helpof auxiliaryelectric heating;and its freshair purification systemeffectivelyremovesdust,debris,greaseout ofthe drying space to better retain the temperature andachieve the real energy-saving effect.

Its internal heat circulation structure design keeps energyfrombeing lostto theoutside;italsomakes fulluse of the principle ofair energy toabsorb heat from the air,and expel cold airand moisture;its complete independenceoftheexternal environment makesitsuitable forvarious regionsinthenorthand south.Withbuilt-in internationallyadvanced special compressorforheatpump,thesystemismorestable, reliableand efficient;it has large-volume centrifugal fan,and an additional strong exhaust vent that help forcibly remove excessive hotand humid airinthe dryingroom or drying chamber to speed up the drying rate,save time and improve the service life of the compressor.

This type of equipment is suitable for:industrial spare parts,hardwareproducts,preciouswoods,Chinese crudedrugs,seafood,meat products,andsludge,etc.

Characteristic advantages of H.Stars heat pump drying equipment

Integrated functions, one-key startup Smart control, fullyautomaticoperation ^ { 3 0 + } self-defined functions and60-hour process section,suitable fora variety ofmaterialsand purposes.

Standardized figuration and simple structure make it possible to assembleaccording to the drawings,and no construction work isneeded.

Asambienttemperature has no effect onit, the product issuitable tousearound the clock in various countriesand regions.

Modular structure enables easy installationandrelocation;and anaddedunderframewill make it into moveable equipment.

Built-in long distance diagnosis function and cloud service enablequickafter-saleservice to H.Stars equipment.

O CLOUD

Applications of H.Stars heat pump drying equipment

Drying ofagricultural produce

(regionand varietyareafecting factors;makeselectionaccording torequirementsoftheprocess inquestion.)

Applications of H.Stars heat pump drying equipment

Dryingofseafood

Applications of H.Stars heat pump drying equipment

Drying in food industry

Equipment parts

General assembly drawing of the equipment

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1. Preparation
1.1Make an overall consideration to cover all issues, including road accessibility，materials'entryand exit of the site,and the routes of equipment transportation and hoisting.
1.2 The horizontal and vertical routes for temporary electricity use shall be reasonablyarranged.
1.3Keep construction roads of the siteunblocked,and ensure compliance with requirements of horizontal transportationand fire-fightingaccess.
2.Construction procedures Foundation inspection for acceptance - Inspection upon unpacking 一 Equipment installation 一 Equipment leveling and alignment
2.1.Foundation inspection for acceptance
2.1.1.All surfaces on the foundation, including the templates in the anchor bolt holes,must be removed. 2.1.2.Every part of the foundationmust meet the design requirements on size,with deviations kept within the specification standards.
2.1.3.There shall be no defects such as cracks, honeycombs, holes and exposed ribs on the periphery of the foundation.
2.1.4.Check against the requirements on the design drawings and ensure correct quantity of embedded rods.
2.Inspection upon unpacking
2.2.1. Check against the equipment part ist to ensure completeness of the equipment,spare parts,and accompanying documents and drawings.
2.2.2.Inspectall mechanical parts to ensure there is no damage,corrosion or other defects.
2.2.3.Check main dimensions of each main machine part to ensure their compliance with the drawings. 3.Equipment installation

3.1.The hoist shall be connected to the hoisting ring on the proper bodyof the equipment body,orwire rope is used to wrap the equipment shell before lifting. Don't use the connecting flange or manhole on the equipmentshell;protectionmeasures shall be taken forthe hook,and the partsthatareincontactwithwire rope to avoid damage to the equipment.

3.2.Make a trial attempt before the hoisting,and be careful to avoid swaying of the equipment during the process.
3.3.The hoisting should be carried out according to thespecified direction and angle,and shall avoid large position change of the equipment during the process. 3.4.Damages to the installation device, foundation, anchor bolts,surrounding structures and the equipment shallbe avoided during hoisting.
3.5.The hoisting shall be carried out slowly,and the equipment shall be placed gently when in place.
4.Equipment leveling and alignment
4.1.Size and location of the foundation for the equipmentmaybe determined according thesite conditions.
4.2.The vertical and horizontal base lines for installationand thecenter linesandelevation linesof the anchor bolts shall be marked out according to the drawings, theaxis line of the buildingand the elevation of the ground.
4.3.Before the equipment is put in place,ensure to remove dirt,soil and other things on the base surface ofthe equipmentand thedebrisin the reserved holes ofthe anchor bolts.The foundation or floorwhere grouting sites are located should be chiseled into a pitted surface,and oil-contaminated concrete,if there is any,must be chiseled away to ensure the quality of grouting.
4.4.After the equipment isinstalledinplace,observe whether there is subsidence of the building.
4.5.The secondary grouting of the equipment foundationmust be tamped and compacted,without leaving any gaps or holes,or causing displacement of anchor bolts.

H.Stars(Guangzhou) Refrigerating Equipment Group Ltd.

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

HuangPu District,Guangzhou,China Zip Code 510530
Email: sales@hstars.com.cn
Tel: +862062266755 ext. 886
Fax:+862082266081
Website:www.hstarschiller.com
Twitter: twitter.com/HStarsGroup
Facebook:www.facebook.com/Hstarsgroup
Linkedln: www.linkedin.com/company/hstarsgroup
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