CN205747570U - Evaporating type condensing air conditioner heat pump system - Google Patents
Evaporating type condensing air conditioner heat pump system Download PDFInfo
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Abstract
This utility model relates to a kind of evaporating type condensing air conditioner heat pump system, by compressor, cross valve, use side heat exchanger, finned tube exchanger, evaporative condenser, spray water system, liquid reservoir, device for drying and filtering, throttling arrangement, gas-liquid separator, blower fan, electromagnetic valve D, electromagnetic valve A, electromagnetic valve B, check valve and pipeline form with control loop, finned tube exchanger and evaporative condenser are arranged in the condenser tube end interface of cross valve by series-parallel system, the entrance point of both place branch roads is commonly connected to the condenser interface end of cross valve, both are commonly connected in the inlet ductwork of liquid reservoir by the port of export；Refrigeration and heat-production functions rely on the suction and discharge of cross valve switching compressor to flow to, and the flow direction is controlled again with check valve by electromagnetic valve, refrigerating operaton is made can quickly to cool down cold-producing medium by evaporating type condensing function system water evaporation latent heat, it is achieved refrigerated efficient energy-saving run；When heating, rely on finned tube exchanger to absorb heat from air side, make system possess air source heat pump function.
Description
Technical field
This utility model belongs to Refrigeration & Air-Conditioning equipment technical field, relates generally to a kind of evaporating type condensing air conditioner heat pump system.
Background technology
Evaporating type condensing technology is a kind of efficient electricity-saving, water-saving technology.It is uniformly distributed in heat exchanger surface to form continuous water thin film by recirculated water, utilizes non-saturated air enthalpy difference motive force, the heat exchanger internal flow heat that water evaporation latent heat absorbs is transferred to air and takes away.Configuration evaporative condenser equipment, compared with air-cooled cooling device, can economize on electricity more than 30%；Compared with traditional open cooling tower, its effect is equivalent to carry out integrated by tradition water condenser with cooling tower, in hgher efficiency, effectively reduces the elegant rate of recirculated water.Evaporating type condensing technology, wide applies in closed cooling tower product, and currently the evaporative condenser product with cold-producing medium as working medium increases day by day, and condenser form is based on serpentine coil formula, and new type of plate chip evaporative condenser is then in during research and development promote.Currently, use evaporating type condensing technical products be applied substantially in industrial circle refrigeration system, without heat pump functional, simultaneously evaporative condenser because of applied environment be high humidity thermal field conjunction, the easy dirty of heat exchanger surface, perplex its popularization and application always.
Air source heat pump is a kind of without installing machine room, it is not necessary to cooling water, utilize air for thermal source, can the air-conditioning equipment of both cooling and heating, utilization can be obtained because of air whenever and wherever possible, install with easy to use, air source heat pump is used widely in comfort air conditioning system field.Its deficiency is, the specific heat capacity of air is little, air-side heat exchanger efficiency is low, equipment needs bigger ventilation and bigger heat transfer temperature difference could meet use demand, and therefore during refrigerating operaton, air source heat pump condensation temperature is high compared with water chiller about 10 DEG C, with evaporation cold compared with high more than 13 DEG C, cause refrigeration system efficiency relatively low, thus be necessary complementary to evaporating type condensing technology and air source heat pump technical advantage, more preferably to meet comfort air conditioning system field product power conservation requirement.
Utility model content
The purpose of this utility model is contemplated to overcome above-mentioned problems of the prior art, and a kind of evaporating type condensing air conditioner heat pump system is provided, efficient evaporation refrigeration technique can be realized and graft in air source heat pump product, reach refrigerating operaton efficiency high, cost is reasonable, being readily produced, application is reliable, has much implementary value.
The purpose of this utility model completes by following technical solution.This evaporating type condensing air conditioner heat pump system, by compressor, cross valve, use side heat exchanger, finned tube exchanger, evaporative condenser, spray water system, liquid reservoir, device for drying and filtering, throttling arrangement, gas-liquid separator, blower fan, electromagnetic valve D, electromagnetic valve A, electromagnetic valve B, check valve and pipeline form with control loop, finned tube exchanger and evaporative condenser are arranged in the condenser tube end interface of cross valve by series-parallel system, the entrance point of both place branch roads is commonly connected to the condenser interface end of cross valve, both are commonly connected in the inlet ductwork of liquid reservoir by the port of export；Refrigeration and heat-production functions rely on the suction and discharge of cross valve switching compressor to flow to, and the flow direction is controlled again with check valve by electromagnetic valve, refrigerating operaton is made can quickly to cool down cold-producing medium by evaporating type condensing function system water evaporation latent heat, it is achieved refrigerated efficient energy-saving run；When heating, rely on finned tube exchanger to absorb heat from air side, make system possess air source heat pump function.
Described finned tube exchanger is a kind of air-cooled condenser, evaporative condenser is a kind of wind water cooling cooler condenser based on water evaporation latent heat, by controlling loop modulation cross valve, electromagnetic valve adjusts refrigerant flow direction, rely on evaporative condenser 5 and finned tube exchanger is independent, series, parallel operational mode, system is made to realize Effec-tive Function during refrigeration, and it being provided simultaneously with air source heat pump function, it is achieved the two organically combines.
Described evaporative condenser and spray water system are integrated in air cooling module machine casing, spray water system includes water circulating pump, nozzle, collecting-tank and ball-cock assembly, it is provided with collecting-tank at air cooling module machine bottom of shell, collecting-tank is connected by the nozzle of water circulating pump with top water-locator, controls water inlet by ball-cock assembly；Nozzle is right against evaporative condenser, and the top of air cooling module machine casing is provided with blower fan, relies on blower fan to get rid of the high damp-heat air that evaporative condenser is formed when refrigerating operaton cools down；When heating operation, rely on blower fan to drive air to flow through finned tube exchanger, make unit cold-producing medium obtain heat from Cryogenic air thermal source.
The heat exchange unit branch road being connected with evaporative condenser includes that evaporative condenser, electromagnetic valve B, check valve A form, the heat exchange unit branch road B being connected with finned tube exchanger includes that finned tube exchanger, electromagnetic valve A, check valve E form, and is connected by electromagnetic valve D between two branch roads.
The beneficial effects of the utility model are:
1, compared with traditional net for air-source heat pump units, operational energy efficiency when refrigeration is substantially improved, can improve more than 30%.
2, compared with traditional handpiece Water Chilling Units+cooling tower application, not only efficiency is more preferable, and integrated design ensures that delivered product quality is good, attractive in appearance, floor space is little, effectively reduces construction costs.
3, compared with refrigerating function single with handpiece Water Chilling Units, increase heating mode, widen range of application.
4, by the independent operating that evaporative condenser is arranged with air-cooled type finned tube exchanger, series operation, parallel running mode during refrigerating operaton, guarantee that under each operating mode, system all can high efficient and reliable be run, and can effectively reduce evaporative condenser heat exchange surface dirty risk.
5, system flexible design, extensibility is good, adapts to different applied environments.
Accompanying drawing explanation
Fig. 1 is a kind of evaporating type condensing air conditioner heat pump system flow chart；
Fig. 2 is the wind cooling cold and hot water heat pump flow chart of a kind of band evaporation；
Fig. 3 evaporative condenser is connected with finned tube exchanger tandem；
Fig. 4 evaporative condenser is parallel with finned tube exchanger to be connected；
Fig. 5 evaporative condenser is connected 1 with finned tube exchanger serial parallel；
Fig. 6 evaporative condenser is connected 2 with finned tube exchanger serial parallel；
Fig. 7 heat pump attached control circuit diagram.
Description of reference numerals: 1-compressor；2-cross valve；3-uses side heat exchanger；4-finned tube exchanger；5-evaporative condenser；6-spray water system；7-liquid reservoir；8-device for drying and filtering；9-throttling arrangement；10-gas-liquid separator；11-blower fan；12-electromagnetic valve D；13-electromagnetic valve A；14-electromagnetic valve B；15-check valve A, 16-check valve B, 17-check valve C, 18-check valve D, 19-check valve E；20-electromagnetic valve C；21-collecting-tank, 22-ball-cock assembly, 23-water circulating pump, 24-nozzle.
Detailed description of the invention
With embodiment, this utility model is described further below in conjunction with the accompanying drawings:
This evaporating type condensing air conditioner heat pump system, it is characterized in that: by compressor 1, cross valve 2, use side heat exchanger 3, finned tube exchanger 4, evaporative condenser 5, spray water system 6, liquid reservoir 7, device for drying and filtering 8, throttling arrangement 9, gas-liquid separator 10, blower fan 11, electromagnetic valve D12, electromagnetic valve A13, electromagnetic valve B14, check valve and pipeline form with control loop, finned tube exchanger 4 and evaporative condenser 5 are pressed series-parallel system and are arranged, condenser tube end interface in cross valve 2, the entrance point of both place branch roads is commonly connected to the condenser interface end of cross valve 2, both are commonly connected in the inlet ductwork of liquid reservoir 7 by the port of export；The suction and discharge that refrigeration and heat-production functions rely on cross valve 2 to switch compressor 1 flow to, and the flow direction is controlled again with check valve by electromagnetic valve, refrigerating operaton is made can quickly to cool down cold-producing medium by evaporating type condensing function system water evaporation latent heat, it is achieved refrigerated efficient energy-saving run；When heating, rely on finned tube exchanger 4 to absorb heat from air side, make system possess air source heat pump function.Described finned tube exchanger 4 is a kind of air-cooled condenser, evaporative condenser 5 is a kind of wind water cooling cooler condenser based on water evaporation latent heat, by controlling loop modulation cross valve 2, electromagnetic valve adjusts refrigerant flow direction, rely on evaporative condenser 5 and finned tube exchanger 4 is independent, series, parallel operational mode, system is made to realize Effec-tive Function during refrigeration, and it being provided simultaneously with air source heat pump function, it is achieved the two organically combines.
In this programme, finned tube exchanger 4 and evaporative condenser 5 are as heat source side heat exchanger, all can be as condenser when refrigerating operaton, can independent operating also can cooperation, in heat pump, position can be designed with serial layout, parallel join or serial parallel independent assortment, sees shown in Fig. 3,4,5,6.In evaporative condenser system, easily dirty is the problem that cannot avoid, being the minimizing dirty measure imitated very much using air-cooled type finned tube exchanger as pre-cooling, for this applications, being arranged by a serial will finned tube exchanger be preposition can realize pre-cooling function in evaporative condenser.In view of evaporating type condensing effect is far above air-cooled, optimal cooling operation mode is evaporative condenser independent operating, and heating mode is then finned tube exchanger operating alone, and parallel join can reach this purpose, and pipeline is arranged succinct.If in a system should evaporative condenser independent operating, finned tube exchanger merges one cooperation again, uses the design of serial parallel independent assortment, by reasonably controlling, can be achieved with system high efficiency, reliability service.Being designed by the serial parallel independent assortment of this novelty, when refrigerating operaton is the easy dirty of high-temperature high-load, put into by finned tube exchanger as precooling zone, entering evaporative condenser refrigerant temperature can be remarkably decreased, and dirty risk is substantially reduced.When the evaporative condenser system failure maybe needs maintenance, finned tube exchanger can be switched to temporarily and undertake condensation function and do not affect unit and use.When refrigerating operaton evaporating type condensing effect is remarkably decreased, finned tube exchanger can be put into and participate in cooling, increase system radiating ability, make up the deficiency of evaporating type condensing.As can be seen here, the design ensures that refrigerating operaton is efficient, and the system that promotes again runs safety redundancy.This serial parallel independent assortment is designed with Fig. 5 Yu Fig. 6 two schemes, arrange that 2 relatively arrange that 1 sets up electromagnetic valve C20 before finned tube exchanger entrance, can ensure that completely cutting through cold-producing medium during refrigeration evaporator formula condenser independent operating carries to finned tube exchanger, but can sacrifice performance because the existence of electromagnetic valve C20 produces additional system pressure drop during heating operation, this programme preferentially uses layout 1.
In this programme, the branch road A being connected with evaporative condenser 5 includes that evaporative condenser 5, electromagnetic valve B14, check valve A15 form.During refrigerating operaton, electromagnetic valve A14 is shown in a fully open operation, and this branch road is unimpeded, and compressor air-discharging fully enters and carries out in evaporative condenser 5 and edema due to wind pathogen heat exchange.When heating operation, branch road A needs to cut off, and is isolated by evaporative condenser 5 from the heat pump cycle run, and electromagnetic valve and check valve act on jointly can close this passage.
In this programme, the branch road B being connected with finned tube exchanger 4 includes that finned tube exchanger 4, electromagnetic valve A13, check valve E19 form.During refrigerating operaton, electromagnetic valve 13 is closed, and this branch road is cut off, and the branch road internal pressure refrigerant saturation pressure corresponding with outdoor environment temperature is suitable.During heating operation, electromagnetic valve A13 opens, and finned tube exchanger 4 uses as air source heat pump evaporator, and the low temperature gas-liquid two-phase cold-producing medium produced after throttling arrangement 9 throttles flows through finned tube exchanger 4, absorbs heat and steam raising from air.
In this programme, electromagnetic valve D12 has connected the branch road A being connected with the evaporative condenser 5 and branch road B being connected with finned tube exchanger 4.When refrigerating operaton, evaporative condenser 5 independent operating then can close electromagnetic valve D12；When evaporative condenser 5 and finned tube exchanger 4 freeze cooperation, then can open electromagnetic valve D12.When heating operation, close electromagnetic valve D12, cut off branch road A.
In this programme, the suction and discharge that refrigeration and heat-production functions rely on cross valve 2 to switch compressor 1 flow to, and again by electromagnetic valve and check valve control further to refrigerant flow direction, when making refrigerating operaton, compressor air-discharging leads to evaporative condenser 5, the shower water water evaporation latent heat utilizing spray water system 6 to produce quickly cools down cold-producing medium, it is achieved refrigerated efficient energy-saving run；When heating, compressor air-discharging leads to use side heat exchanger 3, and its condensation heat passes to use side liquid, reaches heat-production functions.Finned tube exchanger 4, as heating the vaporizer of circulation, absorbs heat from air side continually, thus makes system possess air source heat pump function.
In this programme, the high damp-heat air that evaporative condenser 5 is formed when refrigerating operaton cools down, need to be excluded by blower fan 11；Finned tube exchanger 4 is when heating operation, and as the vaporizer of air source heat pump, the air needing blower fan 11 to extract in external environment condition flows through finned tube exchanger, makes heat exchanger inner refrigerant produce effective heat exchange with air.
As the further scheme of this programme, integrated complete set evaporating type condensing function system, evaporative condenser 5 serves as condensation radiator, spray water system 6 as transpiration-cooled water source, water-locator effect through evaporative condenser 5 top, shower water is uniformly sprinkled upon on evaporative condenser 5 wall-type heat exchange surface, the Forced Convection Air that blower fan 11 produces is also by wall-type heat exchange surface, thus forms air water fluid interchange.Described evaporative condenser 5 is integrated in air cooling module machine casing with spray water system 6, spray water system includes water circulating pump 23, nozzle 24, collecting-tank 21 and ball-cock assembly 22, it is provided with collecting-tank 21 at air cooling module machine bottom of shell, collecting-tank 21 is connected with the nozzle 24 of top water-locator by water circulating pump 23, controls water inlet by ball-cock assembly 22；Nozzle 24 is right against evaporative condenser 5, and the top of air cooling module machine casing is provided with blower fan 11, relies on blower fan 11 to get rid of the high damp-heat air that evaporative condenser 5 is formed when refrigerating operaton cools down；When heating operation, rely on blower fan 11 to drive air to flow through finned tube exchanger 4, make unit cold-producing medium obtain heat from Cryogenic air thermal source.Blower fan 11 can carry out gearshift adjustment, runs with heating with Optimized Matching refrigeration.
As the further scheme of this programme, by the air quantity of evaporative condenser 5 during refrigeration, can differ with the air quantity flowing through finned tube exchanger 4 when heating, therefore blower fan 11 can carry out gearshift adjustment, or changes air quantity by input quantity change during as many group blower fan configurations.Above measure can Optimized Matching refrigeration run with heating.
As the further scheme of this programme, refrigerant flow direction is controlled by system controller loop adjustment compressor, cross valve, electromagnetic valve, blower fan, throttling arrangement, the running status of water pump, regulation refrigerant cycle flow, air mass flow, water spray rely on plurality of operating modes to guarantee that high efficient and reliable is run when realizing cooling system, play air source heat pumps energy-saving effect when heating, and realize the two combination.
As the further scheme of this programme, by the control logic of rational circuit design Yu optimization, electromagnetic valve quantity can be reduced, reduce system design cost.Removing as will be located in the electromagnetic valve at position, high-temperature region, operational reliability can be promoted further.
Embodiment as shown in Figure 1 uses a kind of heat pump set system flow process that evaporative condenser is arranged with finned tube exchanger serial parallel, serial parallel arranges that passage is made up of with electromagnetic valve D12, electromagnetic valve A13, electromagnetic valve B14, check valve A15, check valve E19 evaporative condenser 5, finned tube exchanger 4, form the heat exchange unit branch road A with evaporative condenser 5 as core, heat exchange unit branch road B with finned tube exchanger 4 as core, controls refrigerant flow direction by electromagnetic valve thus reaches freely to switch heat exchange unit function.Heat exchange unit branch road A is made up of evaporative condenser 5, electromagnetic valve B14, check valve A15, and heat exchange unit branch road B is made up of finned tube exchanger 4, electromagnetic valve A13, check valve E19.The import of branch road A and branch road B is connected to the condenser adapter C mouth of cross valve 2, and during refrigerating operaton, High Temperature High Pressure aerofluxus can import branch road A and branch road B entrance selectively.The outlet of branch road A and branch road B is connected to the import of liquid reservoir 7.Connected by electromagnetic valve D12 again between evaporative condenser 5, finned tube exchanger 4, be controlled by cooperation or independent operating.
In evaporative condenser function system, evaporative condenser 5 can be serpentine coil formula structure, and pressure height is relatively suitable for cold-producing medium；Being used as plate type heat exchanger, easy cleaning, refrigerant charging is few, need to detect voltage endurance capability up to standard.In collecting-tank, water is after water pump force feed enters water treatment facilities such as electronic type descaler, it is delivered to be positioned at the water-locator on evaporative condenser 5 top, by nozzle 24, water is uniformly sprayed on evaporative condenser 5 wall-type heat exchange surface, the air of blower fan 11 suction and shower water are that reflux type is by wall-type heat exchange surface, form mass-and heat-transfer between air water, the flowing enthalpy difference relying on unsaturated air to exist is motive force, the continuous evaporation endothermic of water, and the air flow through quickly is taken away.Along with water evaporation dissipates and the elegant loss of very small amount, pond middle water level declines, timely moisturizing under ball-cock assembly effect, it is ensured that water pump sucks safely water level.After longtime running, pond mineral concentration raises, and needs periodically to carry out blowdown.
Flow to according to the refrigerating operaton shown in Fig. 1, side heat exchanger 3 is used to be connected with the vaporizer side passage E of cross valve 2, low-pressure steam enters compressor air suction mouth after gas-liquid separator 10 carries out gas-liquid separation, after compressor 1 does work, the high temperature and high pressure gas formed imports condenser side channel C by cross valve 2, then enters different heat exchanger unit branch roads according to each electromagnetic valve on off operating mode and cools down.When only evaporative condenser 5 runs, electromagnetic valve D12, electromagnetic valve A13 close, and electromagnetic valve B14 opens, and aerofluxus enters heat exchange unit branch road A, is efficiently cooled down by evaporative condenser 5.When finned tube exchanger 4 is as pre-cooling, finned tube exchanger 4 and evaporative condenser 5 use series operation pattern, electromagnetic valve B14, electromagnetic valve A13 close, electromagnetic valve D12 opens, aerofluxus initially enters heat exchange unit branch road B, dry calibration is carried out by air in finned tube exchanger 4, the aerofluxus of more than 70 DEG C can be reduced to the two-phase mixture of less than 48 DEG C, again through electromagnetic valve D12 passage, import in the evaporative condenser 5 in series arrangement and carry out cooling twice, it is less than 55 DEG C because entering liquid temp, substantially reduces heat exchange surface dirty probability.Evaporating type condensing unit needs regular snaking scrubbing blockage resisting, if controlling loop in Yun Hanging to detect that system condensing temperature is higher, i.e. evaporate cold effect poor time, controller import combined in parallel operational mode, electromagnetic valve B14 maintains unlatching, electromagnetic valve D12 remains off, electromagnetic valve A13 opens, and bypassing exhaust enters in finned tube exchanger 4 and carries out dry calibration, reduces the cooling load of evaporative condenser 5, condensing capacity is strengthened, and is effectively improved the refrigerating operaton efficiency of whole unit.
When heating operation, the only heat exchange unit branch road B at finned tube exchanger 4 place participates in running, and evaporative condenser 5 place system is out of service, i.e. water air pump inoperative, and electromagnetic valve B14, electromagnetic valve D12 close, and heat exchange unit branch road A is isolated.Under cross valve 2 flows to switching, compressor air-discharging imports to use in side heat exchanger 3 and carries out heat release cooling, after cold-producing medium cooling in check valve C17 enters liquid reservoir 7, drying filter 8 enters throttling arrangement 9, the low-temp low-pressure two phase refrigerant formed after throttling enters in finned tube exchanger 4 evaporation that carries out absorbing heat after check valve D18 and becomes superheated steam, then returns to compressor 2 air entry through cross valve 2 and gas-liquid separator 10.Finned tube exchanger frost accumulated, is defrosted by reverse kind of refrigeration cycle mode, processes according to finned tube exchanger independent cooling operational mode, i.e. electromagnetic valve D12, electromagnetic valve B14 can close, and electromagnetic valve A13 opens, and compressor air-discharging enters finned tube exchanger defrosting.
Fig. 2 show the wind cooling cold and hot water heat pump flow process of a kind of band evaporating type condensing, and this is to simplify application example at small unit.System is made up of with control loop screw compressor 1, electromagnetic type four-way change-over valve 2, brazing plate type heat exchanger, finned tube exchanger 4, copper pipe bunch evaporative condenser 5, spray water system 6, liquid reservoir 7, device for drying and filtering 8, throttling arrangement 9 (electric expansion valve), gas-liquid separator 10, axial flow blower 11, electromagnetic valve A13, electromagnetic valve B14, check valve.Finned tube exchanger 4 is constituted for copper pipe set aluminum fin-stock, evaporative condenser 5 is copper tube serpentine tube bundle array, both of which uses pipe with small pipe diameter thermoexcell Φ 7 inner screw thread copper pipe, its pipe internal volume more conventional use Large Diameter Pipeline heat exchanger such as Φ 9.52, Φ 15.88 is little, refrigerant charge amount is little, so can suitably adjust evaporative condenser 5 and finned tube exchanger 4 serial parallel design, remove electromagnetic valve D12, by electromagnetic valve B14 design attitude from situ liquid line when exhaust high temperature pipeline is transferred to be positioned at refrigerating operaton, corresponding improve the electromagnetic valve work life-span.Heat exchange unit branch road A is made up of evaporative condenser 5, electromagnetic valve B14, check valve A15, and heat exchange unit branch road B is made up of finned tube exchanger 4, electromagnetic valve A13, check valve E19.The import of branch road A and branch road B is connected to the condenser adapter C mouth of cross valve 2, and the outlet of branch road A and branch road B is connected to the import of liquid reservoir 7.Circuit design at branch road A Yu branch road B import junction point; flow to arrange by being beneficial to heat; when heating; branch road A place electromagnetic valve B14 closes; making its branch road not smooth, flow through two branch road points from finned tube exchanger 4 refrigerating agent containing oil out along the direct piping that pressure drop is minimum, branch road A is because being designed with rising pipeline section at junction point; avoid being detained refrigeration oil, it is ensured that refrigeration oil is normally back to compressor.
In evaporative condenser 5 independent cooling operational mode, electromagnetic valve B14 opens, and electromagnetic valve A13 closes, and cold-producing medium enters in evaporative condenser and cools down.Finned tube exchanger cuts off because of place branch road, a small amount of cold-producing medium can within it natural cooling, in running, electromagnetic valve A13 batch (-type) can be controlled and open.When freezing cooperation, electromagnetic valve B14 all opens with electromagnetic valve A13, and two heat exchanger units simultaneously participate in cooling, share condensation load.During refrigerating operaton, the very small amount saturated gas being likely to occur when separating run by liquid reservoir 7, it is ensured that electric expansion valve throttling operation stability.
When heating operation finned tube exchanger needs defrosting, carrying out by the inverse endless form of refrigeration, electromagnetic valve B14 closes, and electromagnetic valve A13 opens, and blower fan 11 cuts out, and compressor air-discharging primarily enters finned tube exchanger defrosting.During the defrosting less than 10 minutes, though evaporative condenser 5 branch road is blocked, because steam and copper pipe bundle inner flow passage exist natural temperature differential, a small amount of steam migrates into cooling, after unit goes through repeatedly defrosting, may within it accumulate some refrigeration oils, now need the suction program that cold-producing medium is set in the controller with oil, so that evaporative condenser 5 does not accumulate too much refrigeration oil.
Evaporative condenser 5 not design heat exchanger tube more than needed carrys out chilling spray water, thus arranges filler in spray water system 6 and carry out chilling spray water, to ensure evaporative condenser effect.Blower fan 11 uses Double Speed Fan to design; exhaust air rate is controlled according to the back pressure transducer collection value controlled in loop shown in Fig. 7; the suction superheat that electric expansion valve obtains according to pressure of inspiration(Pi) and suction temperature sensor carries out refrigerant flow control, therefore ensures that unit efficient stable runs.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (4)
1. an evaporating type condensing air conditioner heat pump system, it is characterized in that: by compressor (1), cross valve (2), use side heat exchanger (3), finned tube exchanger (4), evaporative condenser (5), spray water system (6), liquid reservoir (7), device for drying and filtering (8), throttling arrangement (9), gas-liquid separator (10), blower fan (11), electromagnetic valve D (12), electromagnetic valve A (13), electromagnetic valve B (14), check valve and pipeline form with control loop, finned tube exchanger (4) and evaporative condenser (5) are arranged in the condenser tube end interface of cross valve (2) by series-parallel system, the entrance point of both place branch roads is commonly connected to the condenser interface end of cross valve (2), both are commonly connected in the inlet ductwork of liquid reservoir (7) by the port of export；Refrigeration and heat-production functions rely on the suction and discharge of cross valve (2) switching compressor (1) to flow to, and the flow direction is controlled again with check valve by electromagnetic valve, refrigerating operaton is made can quickly to cool down cold-producing medium by evaporating type condensing function system water evaporation latent heat, it is achieved refrigerated efficient energy-saving run；When heating, rely on finned tube exchanger (4) to absorb heat from air side, make system possess air source heat pump function.
Evaporating type condensing air conditioner heat pump system the most according to claim 1, it is characterized in that: described finned tube exchanger (4) is a kind of air-cooled condenser, evaporative condenser (5) is a kind of wind water cooling cooler condenser based on water evaporation latent heat, by controlling loop modulation cross valve (2), electromagnetic valve adjusts refrigerant flow direction, rely on evaporative condenser (5) independent with finned tube exchanger (4), series connection, parallel running mode, system is made to realize Effec-tive Function during refrigeration, and it is provided simultaneously with air source heat pump function, realize the two to organically combine.
Evaporating type condensing air conditioner heat pump system the most according to claim 1, it is characterized in that: described evaporative condenser (5) and spray water system (6) are integrated in air cooling module machine casing, spray water system includes water circulating pump (23), nozzle (24), collecting-tank (21) and ball-cock assembly (22), it is provided with collecting-tank (21) at air cooling module machine bottom of shell, collecting-tank (21) is connected with the nozzle (24) of top water-locator by water circulating pump (23), controls water inlet by ball-cock assembly (22)；Nozzle (24) is right against evaporative condenser (5), the top of air cooling module machine casing is provided with blower fan (11), relies on blower fan (11) to get rid of the high damp-heat air that evaporative condenser (5) is formed when refrigerating operaton cools down；When heating operation, rely on blower fan (11) to drive air to flow through finned tube exchanger (4), make unit cold-producing medium obtain heat from Cryogenic air thermal source.
Evaporating type condensing air conditioner heat pump system the most according to claim 1, it is characterized in that: the heat exchange unit branch road A being connected with evaporative condenser (5) includes that evaporative condenser (5), electromagnetic valve B (14), check valve A (15) form, the heat exchange unit branch road B being connected with finned tube exchanger (4) includes that finned tube exchanger (4), electromagnetic valve A (13), check valve E (19) form, and is connected by electromagnetic valve D (12) between two branch roads.
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| CN105526731A (en) * | 2015-12-30 | 2016-04-27 | 浙江思科国祥制冷设备有限公司 | Evaporative condensation air-conditioning heat pump system |
| CN108507231A (en) * | 2018-04-27 | 2018-09-07 | 上海伯涵热能科技有限公司 | A kind of heat pump system of the multi-stage condensing device condensate liquid deeply undercooling of Multi-stage heating |
| CN110073983A (en) * | 2019-03-01 | 2019-08-02 | 青岛沃润达新能源科技有限公司 | The meat chicken cultivation humidity control system and its control method constituted based on air-heater |
| CN111473548A (en) * | 2019-01-23 | 2020-07-31 | 松下知识产权经营株式会社 | Condensing unit |
| CN112146302A (en) * | 2020-09-22 | 2020-12-29 | 浙江国祥股份有限公司 | Evaporation cold and hot pump unit |
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Address after: 322100 Zhejiang province north of the city of Dongyang City Industrial District Guangfu Street No. 1233 Patentee after: Zhejiang CISCO refrigeration Limited by Share Ltd Address before: 322100 Zhejiang city of Jinhua province Dongyang City Industrial District Guangfu Street No. 1233 Patentee before: Zhejiang Sinoking Air-conditioning & Refrigeration Co., Ltd. |
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