CN101576326A - Refrigeration system including a desiccant - Google Patents
Refrigeration system including a desiccant Download PDFInfo
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- CN101576326A CN101576326A CNA2008101751322A CN200810175132A CN101576326A CN 101576326 A CN101576326 A CN 101576326A CN A2008101751322 A CNA2008101751322 A CN A2008101751322A CN 200810175132 A CN200810175132 A CN 200810175132A CN 101576326 A CN101576326 A CN 101576326A
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- drier
- heat exchanger
- producing medium
- cold
- bypass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H3/024—Moistening ; Devices influencing humidity levels, i.e. humidity control for only dehumidifying the air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H2003/028—Moistening ; Devices influencing humidity levels, i.e. humidity control the devices comprising regeneration means
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- Mechanical Engineering (AREA)
- Central Air Conditioning (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to a refrigeration system including a desiccant. The refrigeration system for providing conditioned air to a space includes a compressor operable to compress a refrigerant, a condenser configured to receive the refrigerant from the compressor, an expansion device configured to receive the refrigerant from the condenser, a desiccant operable to adsorb moisture from an airflow flowing through the desiccant such that the airflow is substantially dehumidified, and an evaporator assembly configured to receive the refrigerant from the expansion device and the airflow from the desiccant. The evaporator assembly is operable to condition the airflow prior to discharge from the evaporator assembly. The refrigeration system also includes a heat exchanger configured to selectively receive the refrigerant from at least one of the compressor and the condenser. The heat exchanger is in communication with the desiccant such that the refrigerant in the heat exchanger desorbs moisture from the desiccant.
Description
Technical field
The present invention relates to refrigeration system, and more particularly, relate to the refrigeration system that comprises drier.
Background technology
Large-scale tractor or truck (for example tractor truck) are commonly used to transport the goods in trailer or the container.Existing tractor in tractor-trailer combination typically comprises driver's cabin, and this driver's cabin is regulated air by the vapor compression air conditioning system that a plurality of quilts mechanically drive.In some constructions, air-conditioning system comprises drier, with before air communication supercooling coil pipe from the air-flow adsorbed moisture.Typically, from the used heat of the engine cooling fluid of engine (for example, from) by the channel cycle in the drier to evict moisture from from drier.
Summary of the invention
In one embodiment, the invention provides a kind of refrigeration system that is used for providing air through regulating to the space.Refrigeration system comprises the compressor that can move with compressed refrigerant, be configured to from compressor receive cold-producing medium condenser, be configured to receive expansion gear, drier and the evaporator assemblies of cold-producing medium from condenser, this drier can move with from the air-flow adsorbed moisture that flows through drier so that air-flow is dehumidified basically, this evaporator assemblies is configured to receive from the cold-producing medium of expansion gear with from the air-flow of drier.Evaporator assemblies can move to regulate air-flow at air-flow before evaporator assemblies is discharged.Refrigeration system also comprises heat exchanger, and it is configured to the selectively reception of at least one from compressor and condenser cold-producing medium.Heat exchanger is communicated with drier so that the cold-producing medium in the heat exchanger discharges moisture from drier.
In another embodiment, the invention provides a kind of method that air through regulating is provided to the space with refrigeration system.Refrigeration system comprises the compressor that can move with compressed refrigerant, be configured to from compressor receive cold-producing medium condenser, be configured to from condenser receive cold-producing medium expansion gear, be configured to receive the drier and the evaporator assemblies of air-flow, this evaporator assemblies is configured to receive from the cold-producing medium of expansion valve with from the air-flow of drier.This method comprises provides heat exchanger, and it is configured to the selectively reception of at least one from compressor and condenser cold-producing medium.Heat exchanger is communicated with drier.This method also comprises from the air-flow adsorbed moisture that flows through drier so that air-flow is dehumidified basically, guiding is from the air communication pervaporation device assembly of drier, regulated air-flow and discharge moisture from drier with evaporator assemblies before evaporator assemblies is discharged at air-flow with the cold-producing medium in the heat exchanger.
By considering detailed description and accompanying drawing, other aspects of the present invention will become apparent.
Description of drawings
Fig. 1 is the schematic diagram that comprises the vehicle of heating, heating ventilation and air-conditioning (HVAC) system.
Fig. 2 is the schematic diagram of the HVAC system of Fig. 1.
Fig. 3 is the schematic diagram of first cooling circuit that uses in the HVAC of Fig. 2 system.
Fig. 4 is the schematic diagram of second cooling circuit that uses in the HVAC of Fig. 2 system.
Fig. 5 is the schematic diagram of the 3rd cooling circuit that uses in the HVAC of Fig. 2 system.
Fig. 6 is the schematic diagram of the 4th cooling circuit that uses in the HVAC of Fig. 2 system.
Fig. 7 is the schematic diagram of the 5th cooling circuit that uses in the HVAC of Fig. 2 system.
Fig. 8 is the schematic diagram of the 6th cooling circuit that uses in the HVAC of Fig. 2 system.
Fig. 9 is the schematic diagram of the 7th cooling circuit that uses in the HVAC of Fig. 2 system.
Figure 10 is the schematic diagram of the two stage adsorption systems used of the HVAC system with Fig. 2.
The specific embodiment
Before describing any embodiment of the present invention in detail, should understand that the present invention is not limited to the details of the structure shown in the figure that illustrate in the following description or below and the layout of parts in it is used.The present invention can have other embodiment and can implement by different way or realize.Will also be appreciated that word used herein and term are not to be counted as restriction for explanation." comprise ", " containing " or " having " and change and to mean project and equivalent and the other project of listing after comprising here.Unless describe in detail or otherwise restriction, term " installations ", " connection ", " support " and " combination " and variation thereof be widely used and comprise direct with indirect installation, be connected, support and combination.In addition, " connection " and " combination " be not limited to physics or being connected or combination of machinery.
Fig. 1 represents vehicle 10 according to an embodiment of the invention.Shown vehicle 10 be tractor truck or other similar vehicles (for example, not with the truck of trailer, box automobile, bus, car etc.), its goods or people who is used for leaving in the cargo compartment (for example, container, trailer etc.) is transported to one or more destinations.Hereinafter, term " vehicle " will be used for representing all these vehicles, and should not be interpreted into application of the present invention is restricted to tractor in tractor-trailer combination separately.In addition, it will be readily apparent to those skilled in the art that it not is the fixing refrigeration system (for example, cooled showcase, dwelling house or commercial air-conditioning system etc.) of a vehicle part that each side of the present invention also can be applied to.
Shown in the structure in, vehicle 10 comprises vehicle frame 14, wheel 18, alternating current generator 22 or direct current (" DC ") generator, prime mover 26 and fuel reservoir 30.Wheel 18 rotatably is attached to vehicle frame 14, moves to allow vehicle 10.Alternating current generator 22 is attached to prime mover 26 so that the mechanical energy that prime mover 26 produces can be transformed into electric energy or.
At the standby run duration (for example, when vehicle 10 is parked etc.) of vehicle 10, prime mover 26 is in second pattern.Usually, the standby of vehicle 10 operation is corresponding with the prime mover 26 that is disengaged.In other words, when prime mover was in " pass " state, prime mover 26 just moved in second pattern.
Shown fuel reservoir 30 is communicated with prime mover 26 fluids, fuel (for example, diesel fuel, gasoline etc.) is transported to prime mover 26 when being in " opening " state at prime mover 26.As shown in fig. 1, fuel reservoir 30 is connected on the vehicle frame 14, but fuel reservoir 30 also can be connected on the vehicle 10 in other positions.
One or more linking in prime mover 26 and the wheel 18 provides power for wheel 18 when being in first pattern at vehicle 10.Prime mover 26 can be explosive motor (for example, Diesel engine etc.), or as selecting, can be the hybrid power engine that comprises the power system that is attached to explosive motor.In other structures, prime mover 26 can be power system completely and do not have corresponding explosive motor.Hereinafter, term " prime mover " will be used for representing all these propulsion systems, and should not be interpreted into scope of the present invention is restricted to explosive motor separately.
As shown in Figure 2, vehicle 10 also comprises coolant system 38.Prime mover 26 is communicated with coolant system 38 fluids by bypass 42 or internal duct feeding mechanism, to be in " opening " at prime mover 26 but prime mover 26 is remained on running temperature in the state time, and (for example, before prime mover 26 starting about one hour etc.) selectively heats prime mover 26 when prime mover 26 is in " pass " state.Shown coolant system 38 comprises the pump 46 that makes cooling agent (for example, ethylene glycol etc.) circulation, can receive the expansion tank 50 of some cooling agents in the described cooling agent and the valve 54 of control flow of coolant during with high relatively temperature operation at coolant system 38.
With reference to figure 1, vehicle 10 also comprises driver's cabin 58, power supply 62 and heating, heating ventilation and air-conditioning (" HVAC ") system 66.Driver's cabin 58 is supported on the vehicle frame 14 in 34 back, cabin, and comprises the wall 70 of restriceted envelope 74.In some constructions, space 74 can be divided into drive section and sleep portion.In addition or as selecting, wall 70 can comprise heat-insulating material (for example, mineral dust, mineral fibres, glass fibre, silica, foamed polyurethane, foamed polystyrene etc.), to help to make space 74 thermal insulation.
With reference to figure 2, HVAC system 66 comprises adsorption system 78, cooling circuit 82 and heating circuit 86.In some constructions, HVAC system 66 can also comprise the defrost system (not shown).Usually, the parts of HVAC system 66 can be positioned on the vehicle 10 Anywhere.In some constructions, the parts of HVAC system 66 can be in single, whole packing.In other structures, each parts of HVAC system 66 can separate with the miscellaneous part of HVAC system 66.
Shown adsorption system 78 comprises 90, second inlet 94, first outlet, 98, second outlet 102 of first inlet and is arranged on inlet 90,94 and exports drier 106 between 98,102.(see Fig. 3) in some constructions, adsorption system 78 can not comprise 94 or second outlet 102 of second inlet.Air-flow 110 by adsorption system 78 is by forming from the air (for example, circulating air) of driver's cabin 58 with from the air (for example, the fresh air of Bu Chonging) of the atmosphere outside the vehicle 10.Adsorption system 78 is communicated with driver's cabin 58 and atmosphere by the pipeline (not shown), so that can pass through drier 106 from the air guiding of driver's cabin 58 and/or atmosphere.In other structures, only admission of air that adsorption system 78 can be from driver's cabin 58 or atmosphere.
Drier 106 can move with from air-flow 110 adsorbed moistures, discharges so that export 98 air-flows that will be dehumidified basically 112 by first.Usually, adsorption system 78 is communicated with thermal source, so that can discharge by the moisture of drier 106 from air-flow 110 absorption from drier 106, and by second outlet 102 it is released in the atmosphere.Adsorption system 78 also is communicated with cooling source (for example, surrounding air), so that can continue to cool off the drier 106 release adsorbate or regeneration before air-flow 110 adsorbed moistures at drier 106.
Fig. 2 shows HVAC system 66 and also comprises near the bypass 113 that is arranged on the adsorption system 78.Bypass 113 selectively steering current 110 walk around adsorption system 78 and not steering current 110 by adsorption system 78, so that air-flow 110 does not dehumidify before regulating air-flows 110 by cooling circuit 82 and heating circuit 86.The air-flow 110 of the not dehumidifying in the bypass 113 is formed by the air (for example, the fresh air of Bu Chonging) that air (for example, circulating air) that receives from driver's cabin 58 and/or the atmosphere outside vehicle 10 receive.In some constructions, one or more flow control apparatus (for example, check valve etc.) can be arranged near the inlet 90 and be arranged in bypass 113 with stop air-flow 110 flow into one of adsorption systems 78 and bypass 113 or they both.Usually, near the inlet 90 and flow control apparatus in bypass 113 regulate the air-flow 110 in the HVAC system 66 and pass through one of adsorption system 78 and bypass 113 so that can air-flow 110 be guided at the run duration of HVAC system 66.In some constructions, flow control apparatus is partly opened so that the part of air-flow 152 can flow through the part of inlet 90 and air-flow 110 and can be flow through bypass 113.
Shown cooling circuit 82, or refrigeration system comprise condenser assembly 114, expansion gear 118, heat exchanger or evaporator assemblies 122 and flow through the cold-producing medium of condenser assembly 114, expansion gear 118 and evaporator assemblies 122.Shown condenser assembly 114 comprises compressor 126, condenser coil 130 and condenser fan 134.In other structures, cooling circuit 82 can also comprise miscellaneous part (for example, flow control valve, a plurality of or compound compressor etc.).
Compressor 126 and condenser coil 130 can be positioned on the vehicle 10 Anywhere.In some constructions, condenser coil 130 can be installed to the outer surface of one of wall 70.Condenser fan 134 is positioned near the condenser coil 130 to cross condenser coil 130 by the guiding air and helps heat is delivered to atmosphere from the cold-producing medium of condenser coil 130.
As shown in Figure 2, evaporator assemblies 122 comprises shell 138, is arranged on the cooling coil 142 in the shell 138 and is arranged in the shell 138 and the evaporator fan 146 that is communicated with cooling coil 142.Adsorption system 78, bypass 113 and evaporator assemblies 122 substantial alignment are so that evaporator fan 146 can produce by adsorption system 78, by bypass 113 and cross the air-flow 110 of cooling coil 142.In other structures, can pass through other air moving device (for example, pressure fan etc.) generation and enter adsorption system 78 and/or the air-flow 110 by bypass 113.
Heating circuit 86 comprises heater 150, fuel reservoir 154 and heat(ing) coil 158.In some constructions, fuel reservoir 154 can be identical with the fuel reservoir 30 of vehicle 10.Heater 150 is diesel fuel heaters of direct-fire, and it is positioned to be communicated with and comprise the heating element heater (for example, aura pin, heat exchanger etc.) that helps heats coolant with cooling agent in the coolant system 38.Shown in structure in, heat(ing) coil 158 is arranged on to be communicated with in the shell 138 of evaporator assemblies 122 and with adsorption system 78 and bypass 113 with what receive air-flow 110,112 and heats corresponding air-flow 110,112 in the lump.Can select by another kind of thermal source heated air stream 110,112 by the thermal source or the conduct that are used for making drier 106 discharge adsorbate.In other structures, can make heat(ing) coil 158 be arranged in other positions of vehicle 10.Cooling coil 142 and heat(ing) coil 158 are separated from each other so that heating circuit 86 and cooling circuit 82 do not mix.
At the run duration of heating circuit 86, the air dewetting that may needn't will be directed crossing heat(ing) coil 158 by adsorption system 78.For example, by with heat(ing) coil 158 in the heat exchange heated air stream 110 of heated cold-producing medium before, air-flow 110 can be walked around adsorption system 78 by bypass 113.As selection, can the air-flow 112 that be dehumidified can be directed to then in the shell 138 to heat by adsorption system 78 with air-flow 110 dehumidifying by heat(ing) coil 158.Then heated air-flow is discharged in the space 74.
Be in operation, HVAC system 66 utilizes adsorption system 78, cooling circuit 82 and/or heating circuit 86 selectively to regulate space 74.When space 74 was cooled, evaporator fan 146 suction airstream 110 made its first inlet 90 by adsorption system 78, cross drier 106, also export 98 by first.When air-flow 110 passes drier 106, by drier 106 adsorbed moistures air-flow 110 is dehumidified basically, as known in the art.Air-flow 112 guiding that will be dehumidified then are by evaporator assemblies 122, and air-flow 112 is conditioned so that the air-flow 166 that is conditioned can be discharged in the space 74 there.In some constructions, can be at the run duration of cooling circuit 82 with at least a portion guiding of air-flow 110 by bypass 113 so that it walks around adsorption system 78 (for example, when the air of regulating in advance from the quilt of driver's cabin 58 by 66 recirculation of HVAC system time).
At last, become saturated and no longer can be at drier 106 with air-flow 110 dehumidifying from air-flow 110 adsorbed moistures always.In case drier 110 is saturated, the regenerative process of adsorption system 78 just begins to discharge moisture from drier 106.During regenerative process, HVAC system 66 usefulness are regulated space 74 through the air-flow 110 of the not dehumidifying of bypass 113.Flow control apparatus makes air-flow 110 change its course towards evaporator assemblies 122 by bypass 113, and stops or prevent that air-flow 110 from entering adsorption system 78.In some constructions, can during regenerative process, one or more parts of HVAC system 66 be closed.
For example, at the run duration of adsorption system 78, about running time of 90 percent by the moisture in drier 106 adsorption gas flows 110.In this example, the regeneration of drier 106 (for example, discharging adsorbate and cooling) continues for about 10 running time.The absorption of drier 106 and the duration of regeneration may be different from time range discussed here.During regenerative process, because from the moist matter that do not eliminate of the air-flow 110 of bypass 113, HVAC system 66 can move under big relatively load.Yet the duration of regenerative process lacks and does not influence basically the efficient of HVAC system 66 relatively.In addition since during the sorption cycle formerly from the air adsorbed moisture, so can have low relatively humidity, and can limit the effects of load of 110 pairs of HVAC systems 66 of air-flow by the air from driver's cabin 74 of HVAC system 66 recirculation.
Cooling circuit 82 is by regulating the air-flow 112 that is dehumidified with the heat transmission of cooling coil 142.By evaporator fan 146 air-flow 166 that is conditioned is directed to the space 74 from evaporator assemblies 122 then.At the run duration (that is, typical refrigerating mode) of cooling circuit 82, cold-producing medium is by the air-flow 112 of cooling circuit 82 circulations to be dehumidified by the heat transmission cooling with cooling coil 142.Warm relatively cold-producing medium is compressed by compressor 126, be delivered in the compressed cold-producing medium of cooling in the condenser coil 130 by heat then with air, wherein said air near condenser coil 130 or (for example, by condenser fan 134) be directed crossing condenser coil 130.Leng Que cold-producing medium is conducted through expansion gear 118 and enters evaporator assemblies 122 by cooling coil 142 then.The air-flow 112 that the cold-producing medium of the previous cooling of heating and cooling are dehumidified.Air-flow 166 that evaporator fan 146 will cool off, that dehumidified is directed in the driver's cabin 58 to regulate space 74.
At the run duration of heating circuit 86, be used to air-flow 110 adjusting spaces 74 from the not dehumidifying of bypass 113.Usually, air-flow 110 is walked around adsorption system 78 and is heated coil pipe 158 at the run duration of heating circuit 86 and regulates.In some constructions, can regulate the air-flow 112 that is dehumidified by heat(ing) coil 158 then by adsorption system 78 with some or all dehumidifying in the air-flow 110.Make the air-flow 110 of circulate coolant not dehumidify by heat transmission heating with heat(ing) coil 158.By evaporator fan 146 heated air-flow (rather than air-flow 166 cooling, that dehumidified) is pushed driver's cabin 58 to regulate space 74 then.When prime mover 26 was in first pattern, from the cooling agent in the hot heats coolant loop of prime mover 26, cooling agent can selectively provide heat to space 74 again.When prime mover 26 was in second pattern, heater 150 can selectively be engaged with the cooling agent in the heats coolant system 38, so that heat to be provided to space 74.In addition, when prime mover 26 was in " pass " state, the cooling agent that heats by heater 150 can keep prime mover 26 warm relatively as required.
As discussed above, in some cases, wish the operation of HVAC system 66 after or between the regenerate drier 106 of adsorption system 78.Shown in structure in, can be used for drier 106 being discharged adsorbates from the used heat that cools off loop 82.The various cooling circuits that Fig. 3-9 expression is similar basically to the cooling circuit 82 shown in Fig. 2, and same part is given identical Reference numeral.Shown cooling circuit is similar each other basically so that the overall operation of each cooling circuit is identical substantially.Each cooling circuit of discussing below all comprises secondary heat exchanger 186, and it can move with by utilizing warm cold-producing medium heat drying agent 106 in the cooling circuit drier 106 of regenerating.The secondary heat exchanger 186 that Fig. 3-5 expression and condenser coil 130 are arranged in parallel, and the secondary heat exchanger 186 of Fig. 6-9 expression and condenser coil 130 arranged in series.Secondary heat exchanger 186 also be can move with regeneration after pre-cooled drier 106.
(for example see Fig. 3) in some constructions, secondary heat exchanger 186 comprises the secondary coil 190 that is embedded in the drier 106 with direct drying agent 106.In other structures (for example seeing Fig. 6), secondary heat exchanger 186 comprises secondary fan 194, and it can move when being positioned near the drier 106 when coil pipe 190 promotion and purify air and cross secondary coil 190.Warm purified air stream overdrying drying prescription 106 is with indirect drier 106.In this structure, can power be provided for secondary fan 194 by prime mover 26, battery and/or AC power.Yet the secondary coil 190 of the embedding of Fig. 3 and the secondary fan of Fig. 6 194 illustrate just to illustrative purposes.It will be readily apparent to those skilled in the art that in the cooling circuit of Fig. 3-9 any can comprise the secondary coil 190 that is embedded in the drier 106 or promote to purify air crosses coil pipe 190 and the secondary fan 194 by drier 106.In addition, secondary heat exchanger 186 can comprise with heat from cooling circuit be delivered to drier 106 with regeneration drier 106 other devices.
Fig. 3 represents first structure with the cooling circuit 200 of adsorption system 78 uses or refrigeration system.Cooling circuit 200 can move to regulate air-flow, regeneration drier 106 and pre-cooled drier 106.Shown cooling circuit 200 comprises at first valve 204 between compressor 126 and the condenser coil 130 and second valve 208 between compressor 126 and secondary coil 190.Activate (for example, opening and closing) valve 204,208 selectively cold-producing medium is passed through condenser coil 130 or secondary coil 190 from compressor 126 guiding.Shown valve 204,208 can (for example, by solenoid, pneumatic actuator, hydraulic actuator etc.) or actuating manually by automatically.In some constructions, valve 204,208 can be attached in the single triple valve cold-producing medium is directed to condenser coil 130 or secondary coil 190.
In typical refrigerating mode, open first valve 204 and close second valve 208 so that will guide condenser coil 130 into from the warm cold-producing medium of compressor 126.In addition, open cold condenser and evaporator fan 134,146 are turned off secondary fan (if existence) simultaneously.Cold-producing medium flows through condenser coil 130, flows through expansion gear 118, and flows through evaporator coil 142 and get back to compressor 126.Humid air from environment is pulled through first inlet 90 of adsorption system 78 and passes drier 106 so that the air that is dehumidified leaves adsorption system 78 by first outlet 98.The air that is dehumidified enters evaporator assemblies 122 and crosses evaporator coil 142, regulates the air that (for example, cooling) dehumidified by the cold-producing medium in the coil pipe 142 there.Then, the air that is conditioned leaves evaporator assemblies 122 and enters surrounding environment (for example, the driver's cabin 58 of the vehicle shown in Fig. 1 10).
For the drier 106 of regenerating, close first valve 204 and open second valve 208 so that will guide secondary coil 190 into from the warm cold-producing medium of compressor 126.Turn off condenser and evaporator fan 134,146, open secondary fan (if existence) simultaneously.In some constructions, also evaporator fan 146 can be opened.Warm cold-producing medium flows through secondary coil 190, directly (for example, when secondary coil 190 is embedded in the drier 106) or indirectly (for example, when provide secondary fan 194 with promote air-flow and cross secondary coil 190 and during by drier 106) discharge moistures from drier 106.Then, liquid refrigerant passes through expansion device 118 and evaporator coil 142 are got back to compressor 126.This process of continuing or circulation are till drier 106 is fully discharged adsorbate.
For cooling (that is, pre-cooled) drier 106 after regeneration, open first valve 204, close second valve 208, and open condenser fan 135.If there is secondary fan 194, then also it is opened.Warm cold-producing medium from compressor 126 flow out and by condenser coil 130 so that cold-producing medium is cooled and is reduced pressure.Because the cold-producing medium from condenser coil 130 has relatively low pressure, so the cold-producing medium in the secondary coil 190 is inhaled to expansion gear 118 from secondary coil 190.When cold-producing medium by from secondary coil 190 sucking-offs the time, the temperature of cold-producing medium descends, thus directly or indirectly cool drying agent 106.
Fig. 4 represents second structure with the cooling circuit 200 ' of adsorption system 78 uses.For the sake of clarity, omitted adsorption system 78 from Fig. 4.Shown cooling circuit 200 ' is similar to the cooling circuit 200 shown in Fig. 3, but comprises the 3rd valve 212 between secondary coil 190 and expansion gear 118.The 3rd valve 212 activated selectively cold-producing medium is directed to expansion gear 118 from secondary coil 190.Cooling circuit 200 ' also comprises bypass 216, and it extends to point between evaporator coil 142 and the compressor 126 from the point between secondary coil 190 and the 3rd valve 212.Bypass 216 also comprises the 4th valve 220, and it activated selectively by bypass 316 cold-producing medium is directed to compressor 126 from secondary coil 190.Shown valve 212,220 can automatically or manually be activated.In some constructions, third and fourth valve 212,220 can be attached in the single triple valve.
In typical refrigerating mode, open first valve 204 and close second, third and the 4th valve 208,212,220, so that will guide condenser coil 130 into from the warm cold-producing medium of compressor 126.In addition, open cold condenser and evaporator fan 134,146 are turned off secondary fan (if existence) simultaneously.Cold-producing medium flows through condenser coil 130, flows through expansion gear 118, and flows through that evaporator coil 142 is got back to compressor 126 so that cooling circuit 200 ' moves in the mode similar to cooling circuit discussed above 200.
For the drier 106 of regenerating, close the first and the 4th valve 204,220 and open the second and the 3rd valve 208,212, so that will guide secondary coil 190 into from the warm cold-producing medium of compressor 126.Turn off condenser and evaporator fan 134,146, open secondary fan (if existence) simultaneously.In some constructions, also can open evaporator fan 146.Warm cold-producing medium flows through secondary coil 190, directly or indirectly discharges moisture from drier 106.Then, liquid refrigerant passes through expansion device 118 and evaporator coil 142 are got back to compressor 126.This process of continuing or circulation are till drier 106 is fully discharged adsorbate.
For pre-cooled drier 106 after regeneration, open the first and the 4th valve 204,220, close the second and the 3rd valve 208,212, and open condenser fan 134.If there is secondary fan 194, then also it is opened.Warm cold-producing medium from compressor 126 flow out and by condenser coil 130 so that cold-producing medium is cooled.Then, the liquid refrigerant passes through expansion device 118 of cooling and evaporator coil 142 are so that cold-producing medium further is cooled and is reduced pressure.Owing to compare with the cold-producing medium in the secondary coil 190, the cold-producing medium that leaves evaporator coil 142 has relatively low pressure, so the cold-producing medium in the secondary coil 190 is inhaled to compressor 126 by bypass 216.When cold-producing medium by from secondary coil 190 sucking-offs the time, the temperature of cold-producing medium descends, thus directly or indirectly cool drying agent 106.
Fig. 5 represents the cooling circuit 200 that uses with adsorption system 78 " the 3rd structure.For the sake of clarity, omitted adsorption system 78 from Fig. 5.Shown cooling circuit 200 " similar to the cooling circuit 200 ' shown in Fig. 4, but comprise second bypass 224, it extends to point between second valve 208 and the secondary coil 190 from the point between condenser coil 130 and the 3rd valve 212.Second bypass 224 comprises the 5th valve 228 and second expansion gear 232.The 5th valve 228 activated selectively to pass through second expansion gear 232 and secondary coil 190 from condenser coil 130 guiding cold-producing mediums.Shown valve 228 can automatically or manually be activated.In some constructions, the 5th valve 228 and second expansion gear 232 can be attached in the single assembly.
In typical refrigerating mode, open first valve 204 and close second, third, the 4th and the 5th valve 208,212,220,228 so that will guide condenser coil 130 into from the warm cold-producing medium of compressor 126.In addition, open cold condenser and evaporator fan 134,146 are turned off secondary fan (if existence) simultaneously.Cold-producing medium flows through condenser coil 130, flows through expansion gear 118, and flows through that evaporator coil 142 is got back to compressor 126 so that cooling circuit 200 " move in the mode similar to cooling circuit discussed above 200.
For the drier 106 of regenerating, close the first, the 4th and the 5th valve 204,220,228 and open the second and the 3rd valve 208,212, so that will guide secondary coil 190 into from the warm cold-producing medium of compressor 126.Turn off condenser and evaporator fan 134,146, open secondary fan (if existence) simultaneously.In some constructions, also can open evaporator fan 146.Warm cold-producing medium flows through secondary coil 190, directly or indirectly discharges moisture from drier 106.Then, liquid refrigerant passes through expansion device 118 and evaporator coil 142 are got back to compressor 126.This process of continuing or circulation are till drier 106 is fully discharged adsorbate.
For pre-cooled drier 106 after regeneration, open the first, the 4th and the 5th valve 204,220,228, close the second and the 3rd valve 208,212, and open condenser fan 134.If there is secondary fan 194, then also it is opened.Warm cold-producing medium from compressor 126 flows through condenser coil 130 so that cold-producing medium is cooled.The cold-producing medium of cooling flows into second bypass 224 and flows through the 5th valve 228 and second expansion gear 232, further cooling refrigeration agent.Then, the cold-producing medium of cooling flows into secondary coil 190 and directly or indirectly cool drying agent 106.Cold-producing medium leaves secondary coil 190 and flows through bypass 216 gets back to compressor 126.
Fig. 6 represents the 4th structure with the cooling circuit 300 of adsorption system 78 uses.For the cooling circuit 300 shown in the operation in typical refrigerating mode, open cold condenser and evaporator fan 134,146 are turned off secondary fan 194 simultaneously.Warm cold-producing medium flows through condenser coil 130, secondary coil 190, expansion gear 118 and evaporator coil 142 from compressor 126, and gets back to compressor 126.Humid air from environment is pulled through first inlet 90 of adsorption system 78 and passes drier 106 so that the air that is dehumidified leaves adsorption system 78 by first outlet 98.The air that is dehumidified enters evaporator assemblies 122 and crosses evaporator coil 142, regulates the air that (for example, cooling) dehumidified by the cold-producing medium that is cooled in the coil pipe 142 there.Then, the air that is conditioned leaves evaporator assemblies 122 and enters surrounding environment (for example, the driver's cabin 58 of the vehicle shown in Fig. 1 10).
For the drier 106 of regenerating, turn off condenser and evaporator fan 134,146, open secondary fan 194 simultaneously.In some constructions, also evaporator fan 146 can be opened.Flow through from the warm cold-producing medium of compressor 126 and not change the condenser coil 130 of (for example, the temperature of cold-producing medium keeps identical substantially) basically and to flow into secondary coil 190.Secondary fan 194 promotes to purify air to cross secondary coil 190, makes the alternating temperature heat that purifies air with the cold-producing medium in the secondary coil 190.Warm purifying air enters adsorption system 78 by second inlet 94, passes drier 106 discharging moistures from drier 106, and leaves adsorption system 78 by second outlet 102.Thereby, take moisture out of drier 106 by purifying air.In some constructions, purifying air can be by the air that returns from driver's cabin 58, form from the air of environment and/or from the air in other sources.Can enter adsorption system 78 by the inlet shared (for example, first inlet 90) in addition or as selecting, purifying air with humid air.In other structures, can omit secondary fan 194 and secondary coil 190 can be embedded in the drier 106 with direct drying agent 106.
Simultaneously, cool off warm cold-producing medium and guide cold-producing medium to pass through expansion gear 118 by purifying air at secondary coil 190 places with further cooling.The cold-producing medium of cooling passes evaporator coil 142, and evaporator fan 146 can move or not move to promote air-flow and cross coil pipe 142 there.Cold-producing medium continues by cooling circuit 300 and is circulated back to compressor 126.This process of continuing or circulation are till drier 106 is fully discharged adsorbate.
For pre-cooled drier 106, open cold condenser and secondary fan 134,194 after regeneration.Warm cold-producing medium from compressor 126 flows through condenser coil 130, there the air cooling refrigeration agent by promoting with condenser fan 134 to cross coil pipe 130.The cold-producing medium of cooling flows to secondary coil 190 from condenser coil 130.Secondary fan 194 promotes to purify air to cross secondary coil 190, purifies air with the refrigerant cools of the cooling in the coil pipe 190.The purified air stream overdrying drying prescription 106 of cooling is with indirect cool drying agent 106.In the structure that omits secondary fan 194, secondary coil 190 can be embedded in the drier 106 with direct cool drying agent 106.Use being configured in here of fan 194 to be called as " indirectly " cooling (or contrary heating), and being configured in here of coil pipe 190 of not using fan 194 and having an embedding is called as " directly " cooling (or against heating).Simultaneously, cold-producing medium leaves secondary coil 190 and flows through expansion gear 118 and evaporator coil 142 is got back to compressor 126.
Fig. 7 represents the 5th structure with the cooling circuit 300 ' of adsorption system 78 uses.For the sake of clarity, omitted adsorption system 78 from Fig. 7.Shown cooling circuit 300 ' is similar to the cooling circuit 300 shown in Fig. 6, but comprises first valve 304 between condenser coil 130 and secondary coil 190.Cooling circuit 300 ' also comprises bypass 308, and it extends to point between secondary coil 190 and the expansion gear 118 from the point between the condenser coil 130 and first valve 304.Bypass 308 comprises second valve 312.Valve 304,312 activated with selectively guide from the cold-producing medium of condenser coil 130 by or walk around secondary coil 190.Shown valve 304,312 can automatically or manually be activated.In some constructions, valve 304,312 can be attached in the single triple valve with the guiding cold-producing medium by or walk around secondary coil 190.
In typical refrigerating mode, close first valve 304 and open second valve 213 so that guiding is walked around secondary coil 190 from the cold-producing medium of condenser coil 130.In addition, open cold condenser and evaporator fan 134,146 are turned off secondary fan 194 (if existence) simultaneously.Warm cold-producing medium flows through condenser coil 130, bypass 308, expansion gear 118 and evaporator coil 142 from compressor 126, and gets back to compressor 126 so that cooling circuit 300 ' moves in the mode similar to cooling circuit discussed above 300.
For the drier 106 of regenerating, open first valve 304 and close second valve 312 so that guide cold-producing medium to pass through secondary coil 190 from condenser coil 130.Turn off condenser and evaporator fan 134,146, open secondary fan 194 (if existence) simultaneously.In some constructions, also can open evaporator fan 146.The condenser coil 130 that warm cold-producing medium flows out and passes through not have basically to change from compressor 126, then, warm cold-producing medium flows into secondary coil 190, directly or indirectly discharges moistures from drier 106.Cold-producing medium flows through expansion gear 118 and evaporator coil 142 is got back to compressor 126 from secondary coil 190.This process of continuing or circulation are till drier 106 is fully discharged adsorbate.
For pre-cooled drier 106 after regeneration, close first valve 304, open second valve 312, and open condenser fan 134.Warm cold-producing medium from compressor 126 flows through condenser coil 130, there the air cooling refrigeration agent by promoting with condenser fan 134 to cross coil pipe 130.The cold-producing medium of cooling by bypass 308 with the pressure current that reduces to expansion gear 118.Owing to compare with the cold-producing medium in the secondary coil 190, the cold-producing medium in the bypass 308 is in relatively low pressure, so the cold-producing medium in the secondary coil 190 is inhaled to expansion gear 118 from coil pipe 190.When cold-producing medium by from secondary coil 190 sucking-offs the time, the temperature of cold-producing medium descends, thus directly or indirectly cool drying agent 106.
Fig. 8 represents the cooling circuit 300 that uses with adsorption system 78 " the 6th structure.For the sake of clarity, omitted adsorption system 78 from Fig. 8.Shown cooling circuit 300 " similar to the cooling circuit 300 ' shown in Fig. 7, but comprise second bypass 316, it extends to point between evaporator coil 142 and the compressor 126 from the point between the secondary coil 190 and first bypass 108.Second bypass 316 comprises the 3rd valve 320, and it activated selectively to guide the cold-producing medium from secondary coil 190 to arrive compressor 126 by second bypass 316.Shown valve 320 can automatically or manually be activated.Cooling circuit 300 " also comprise check valve 324, its between first and second bypasses 308,316 to prevent flowing into the secondary coil 190 or second bypass 316 from the cold-producing medium of first bypass 308.
In typical refrigerating mode, close the first and the 3rd valve 304,320 and open second valve 312 so that guiding is walked around secondary coil 190 from the cold-producing medium of condenser coil 130.In addition, open cold condenser and evaporator fan 134,146 are turned off secondary fan 194 (if existence) simultaneously.Warm cold-producing medium flows out from compressor 126, by condenser coil 130, bypass 308, expansion gear 118 and evaporator coil 142, and gets back to compressor 126 so that cooling circuit 300 " move in the mode similar to cooling circuit discussed above 300.
For the drier 106 of regenerating, open first valve 304 and close the second and the 3rd valve 312,320 so that flow through secondary coil 190 from the cold-producing medium of condenser coil 130.Turn off condenser and evaporator fan 134,146, open secondary fan 194 (if existence) simultaneously.In some constructions, also can open evaporator fan 146.The condenser coil 130 that warm cold-producing medium flows out and passes through not have basically to change from compressor 126.Then, warm cold-producing medium flows into secondary coil 190, directly or indirectly discharges moisture from drier 106.Cold-producing medium flows through expansion gear 118 and evaporator coil 142 is got back to compressor 126 from secondary coil 190.This process of continuing or circulation are till drier 106 is fully discharged adsorbate.
For pre-cooled drier 106 after regeneration, close first valve 304, open the second and the 3rd valve 312,320, and open condenser fan 134.If there is secondary fan 194, then also it is opened.Warm cold-producing medium from compressor 126 flows through condenser coil 130, there the air cooling refrigeration agent by promoting with condenser fan 134 to cross coil pipe 130.The cold-producing medium of cooling continues to arrive compressor 126 by first bypass 308, expansion gear 118 and evaporator coil 142.Owing to compare with the cold-producing medium in the secondary coil 190, the cold-producing medium that leaves evaporator coil 142 has relatively low pressure, so the cold-producing medium in the secondary coil 190 is attracted to compressor 126 by bypass 316.When cold-producing medium by from secondary coil 190 sucking-offs the time, the temperature of cold-producing medium descends, thus directly or indirectly cool drying agent 106.
Fig. 9 represents the cooling circuit 300 that uses with adsorption system 78 " ' the 7th structure.For the sake of clarity, omitted adsorption system 78 from Fig. 9.Shown cooling circuit 300 " ' to the cooling circuit 300 shown in Fig. 8 " similar, but comprise the 3rd bypass 328, it extends to point between first valve 304 and the secondary coil 190 from the point between the condenser coil 130 and first bypass 308.The 3rd bypass 328 comprises the 4th valve 332 and second expansion gear 336.The 4th valve 332 activated selectively to guide the cold-producing medium from condenser coil 130 to pass through second expansion gear 336 and secondary coil 190.Shown valve 332 can automatically or manually be activated.In some constructions, the 4th valve 332 and second expansion gear 336 can be combined in the single assembly.
In typical refrigerating mode, close first, third and fourth valve 304,320,332 and open second valve 312 so that guiding is walked around secondary coil 190 from the cold-producing medium of condenser coil 130.In addition, open cold condenser and evaporator fan 134,146 are turned off secondary fan 194 (if existence) simultaneously.Warm cold-producing medium flows out from compressor 126, by condenser coil 130, bypass 308, expansion gear 118 and evaporator coil 142, and get back to compressor 126 so that cooling circuit 300 " ' move in the mode similar to cooling circuit discussed above 300.
For the drier 106 of regenerating, open first valve 304 and close second, third and the 4th valve 312,320,332.In addition, turn off condenser and evaporator fan 134,146, open secondary fan 194 (if existence) simultaneously.In some constructions, also can open evaporator fan 146.The condenser coil 130 that warm cold-producing medium flows out and passes through not have basically to change from compressor 126.Then, warm cold-producing medium flows into secondary coil 190, directly or indirectly discharges moisture from drier 106.Cold-producing medium flows through expansion gear 118 and evaporator coil 142 is got back to compressor 126 from secondary coil 190.This process of continuing or circulation are till drier 106 is fully discharged adsorbate.
For pre-cooled drier 106 after regeneration, close first valve 304, open third and fourth valve 320,332, and open condenser fan 134.Can open or close second valve 312.If there is secondary fan 194, then also it is opened.Warm cold-producing medium from compressor 126 flows through condenser coil 130, there the air cooling refrigeration agent by promoting with condenser fan 134 to cross coil pipe 130.The cold-producing medium of cooling flows through the 3rd bypass 328 and second expansion gear 336 and flows into secondary coil 190.When cold-producing medium flow through second expansion gear 336, the temperature of cold-producing medium further reduced.Thereby the cold-producing medium that the is cooled cool drying agent directly or indirectly 106 in the secondary coil 190 is also flowed out from secondary coil 190, flows to compressor 126 by second bypass 316.If second valve 312 is opened, then the part from the cold-producing medium of condenser coil 130 can flow through first bypass 308 and expansion gear 118, flow to evaporator coil 142, so that when pre-cooled drier 106, evaporator assemblies 122 can begin or continue operation.
In some constructions, for example in the structure shown in Figure 10, adsorption system 478 is divided into the two-stage system of the cooling capacity that provides continuous.As shown in Figure 10, the adsorption system 478 of two-stage comprises first drier 482 and second drier 486.The adsorption system 478 of shown two-stage can be with top referring to figs. 2 to 9 cooling circuits of describing 82,200,200 ', 200 ", 300,300 ', 300 ", 300 " ' in any use, replace the adsorption system 78 shown in the there.
Provide the adsorption system 478 of two-stage to allow one in first and second drier 482,486 to discharge adsorbate or regeneration, and another drier 482,486 is from the air-flow adsorbed moisture.For example, shown in structure in, during from the air-flow adsorbed moisture, make 482 regeneration of first drier at second drier 486.In case second drier 486 becomes saturated for moisture or first drier 482 discharges adsorbate basically, just first and second drier 482,486 can be put upside down (for example, upset or switch) so that first drier 482 during from the air-flow adsorbed moisture with 486 regeneration of second drier.In some constructions, adsorption system 478 can comprise one or more sensors are to determine when drier 482,486 is put upside down.In other structures, adsorption system can comprise that timer is to put upside down drier 482,486 automatically after the section at the fixed time.
By reducing to regulate the required load of air-flow, adsorption system increases the efficient of HVAC system.For example, in some constructions, adsorption system can be reduced to the load of HVAC system about 50 more than percent.By reducing, energy and fuel consumption have also been reduced from the heat of cold-producing medium to help discharging moisture from drier with the secondary heat exchanger transmission with the normal required power of condenser cooling refrigeration agent.In addition, when in vehicle is used, using secondary heat exchanger, do not need the heater of burning diesel oil to come the heated engine cooling agent to help discharging moisture from drier.
Different characteristic of the present invention and advantage have been illustrated in the claim below.
Claims (26)
1. refrigeration system that is used for providing the air that is conditioned to the space, described refrigeration system comprises:
Compressor, this compressor can move with compressed refrigerant;
Condenser, this condenser configuration becomes to receive described cold-producing medium from described compressor;
Expansion gear, this expansion gear are configured to receive described cold-producing medium from described condenser;
Drier, this drier can move with from flowing through the air-flow adsorbed moisture of described drier, so that described air-flow is dehumidified basically;
Evaporator assemblies, this evaporator assemblies are configured to receive from the described cold-producing medium of described expansion gear with from the described air-flow of described drier, and described evaporator assemblies can move to regulate described air-flow at described air-flow before described evaporator assemblies is discharged; With
Heat exchanger, this heat exchanger causes selectively, and at least one from described compressor and described condenser receives described cold-producing medium, described heat exchanger is communicated with described drier, so that the described cold-producing medium in the described heat exchanger discharges moisture from described drier.
2. refrigeration system as claimed in claim 1, wherein described cold-producing medium is heated when the described cold-producing medium of described compressor compresses, and wherein the heated cold-producing medium in described heat exchanger discharges moisture from described drier.
3. refrigeration system as claimed in claim 1, wherein said cold-producing medium is at least a in the following situation: is cooled before the described heat exchanger and is cooled when being in the described heat exchanger entering, and the described drier of refrigerant cools of the cooling in described heat exchanger wherein.
4. refrigeration system as claimed in claim 1, wherein said heat exchanger comprises coil pipe and fan, described coil pipe is configured to receive described cold-producing medium, described fan can move to promote second air-flow and cross described coil pipe and at least a portion by described drier, with from described drier release moisture.
5. refrigeration system as claimed in claim 1, wherein said heat exchanger comprises the coil pipe that is configured to receive described cold-producing medium, and at least a portion of wherein said coil pipe embeds in the described drier, to discharge moisture from described drier.
6. refrigeration system as claimed in claim 1, wherein said heat exchanger selectively receives described cold-producing medium from described compressor, and comprise at least one valve, described at least one valve is positioned between described compressor, described condenser and the described heat exchanger, selectively described cold-producing medium is directed to described condenser and the described heat exchanger one from described compressor.
7. refrigeration system as claimed in claim 6, also comprise bypass, this bypass extends to point between described evaporator assemblies and the described compressor from the point between described condenser, described heat exchanger and the described expansion gear, and wherein said bypass construction becomes selectively described cold-producing medium to be directed to described compressor from described heat exchanger.
8. refrigeration system as claimed in claim 7, also comprise second bypass, this second bypass extends to point between described at least one valve and the described heat exchanger from the point between described condenser and the described expansion gear, wherein said second bypass comprises second expansion gear, and wherein said second bypass construction becomes selectively described cold-producing medium to be directed to described heat exchanger from described condenser by described second expansion gear.
9. refrigeration system as claimed in claim 1, wherein said heat exchanger selectively receives described cold-producing medium from described condenser, and comprises:
Bypass, this bypass extends to point between described heat exchanger and the described expansion gear from the point between described condenser and the described heat exchanger, described bypass construction become guiding from the described cold-producing medium of described condenser walk around described heat exchanger and
At least one valve between described condenser and described heat exchanger, described at least one valve constitution become selectively described cold-producing medium are directed to described bypass and the described heat exchanger at least one from described condenser.
10. refrigeration system as claimed in claim 9, also comprise second bypass, this second bypass extends to point between described evaporator assemblies and the described compressor from the point between described heat exchanger and the described expansion gear, and wherein said second bypass construction becomes selectively described cold-producing medium to be directed to described compressor from described heat exchanger.
11. refrigeration system as claimed in claim 10, also comprise the 3rd bypass, the 3rd bypass extends to point between described at least one valve and the described heat exchanger from the point between described condenser and described at least one valve, wherein said the 3rd bypass comprises second expansion gear, and wherein said the 3rd bypass construction becomes selectively described cold-producing medium to be directed to described heat exchanger from described condenser by described second expansion gear.
12. refrigeration system as claimed in claim 1, wherein said drier is first drier and comprises second drier, and wherein when a drier in described first drier and described second drier during from described air-flow adsorbed moisture, another drier from described first drier and described second drier of the described cold-producing medium in the described heat exchanger discharges moisture.
13. refrigeration system as claimed in claim 12, wherein said first drier and described second drier are reversible, so that described another drier in described first drier and described second drier is from described air-flow adsorbed moisture, and the described drier of the described cold-producing medium in the described heat exchanger from described first drier and described second drier discharges moisture.
14. method that the air that is conditioned is provided to the space with refrigeration system, described refrigeration system comprises the compressor that can move with compressed refrigerant, be configured to from described compressor receive described cold-producing medium condenser, be configured to from described condenser receive described cold-producing medium expansion gear, be configured to receive the drier and the evaporator assemblies of air-flow, described evaporator assemblies is configured to receive from the cold-producing medium of expansion valve with from the described air-flow of described drier, and described method comprises:
Heat exchanger is provided, and this heat exchanger causes selectively that at least one from described compressor and described condenser receives described cold-producing medium, and described heat exchanger is communicated with described drier;
From flowing through the described air-flow adsorbed moisture of described drier, so that described air-flow is dehumidified basically;
Guiding is crossed described evaporator assemblies from the described air communication of described drier;
Before discharging, described evaporator assemblies regulates described air-flow at described air-flow with described evaporator assemblies; With
Discharge moisture with the described cold-producing medium in the described heat exchanger from described drier.
15. method as claimed in claim 14, wherein described cold-producing medium is heated when the described cold-producing medium of described compressor compresses, and wherein comprises with the heated cold-producing medium the described heat exchanger from described drier release moisture from described drier release moisture.
16. method as claimed in claim 14, wherein said cold-producing medium is at least a in the following situation: be cooled before the described heat exchanger and be cooled when being in the described heat exchanger entering, and comprise with the described drier of the refrigerant cools of the cooling in the described heat exchanger.
17. method as claimed in claim 14, wherein said heat exchanger comprises coil pipe and the fan that is configured to receive described cold-producing medium, and comprise with described fan and promote at least a portion that second air-flow is crossed described coil pipe and passed described drier, to discharge moisture from described drier.
18. method as claimed in claim 14, wherein said heat exchanger comprises the coil pipe that is configured to receive described cold-producing medium, at least a portion of wherein said coil pipe is embedded in the described drier, and wherein comprises with the described cold-producing medium the coil pipe that embeds from described drier release moisture from described drier release moisture.
19. method as claimed in claim 14, wherein said heat exchanger selectively receives described cold-producing medium from described compressor, and comprises:
At least one valve is positioned between described compressor, described condenser and the described heat exchanger; With
Selectively described cold-producing medium is directed to described condenser and the described heat exchanger one from described compressor.
20. method as claimed in claim 19 also comprises:
Bypass is provided, this bypass from the point between described condenser, described heat exchanger and the described expansion gear extend between described evaporator assemblies and the described compressor point and
Selectively described cold-producing medium is directed to described compressor from described heat exchanger by described bypass.
21. the method as claim 20 is stated also comprises:
Second bypass is provided, and this second bypass extends to point between described at least one valve and the described heat exchanger from the point between described compressor and the described expansion gear, described second bypass comprise second expansion gear and
Selectively described cold-producing medium is directed to described heat exchanger from described condenser by described second expansion gear.
22. method as claimed in claim 14, wherein said heat exchanger selectively receives described cold-producing medium from described condenser, and comprises:
Bypass is provided, and this bypass extends to point between described heat exchanger and the described expansion gear from the point between described condenser and the described heat exchanger, and described bypass construction becomes guiding to walk around described heat exchanger from the described cold-producing medium of described condenser,
Between described condenser and described heat exchanger, provide at least one valve and
Selectively described cold-producing medium is directed to described bypass and the described heat exchanger at least one from described condenser.
23. the method as claim 22 is stated also comprises:
Second bypass is provided, this second bypass from the point between described heat exchanger and the described expansion gear extend between described evaporator assemblies and the described compressor point and
Selectively described cold-producing medium is directed to described compressor from described heat exchanger by described second bypass.
24. the method as claim 23 is stated also comprises:
The 3rd bypass is provided, and the 3rd bypass extends to point between described at least one valve and the described heat exchanger from the point between described condenser and described at least one valve, described the 3rd bypass comprise second expansion gear and
Selectively described cold-producing medium is directed to described heat exchanger from described condenser by described second expansion gear.
25. method as claimed in claim 14, wherein said drier is that first drier and described refrigeration system comprise second drier, wherein the air-flow adsorbed moisture that comprises a drier from flow through described first drier and described second drier from described air-flow adsorbed moisture is so that described air-flow is dehumidified basically, and wherein discharges moisture from described drier and comprise with another drier release moisture from described first drier and described second drier of the described cold-producing medium the described heat exchanger.
26. method as claimed in claim 25 also comprises; Put upside down described first drier and described second drier, so that described another drier in described first drier and described second drier is from described air-flow adsorbed moisture, and the described drier of the described cold-producing medium in the described heat exchanger from described first drier and described second drier discharges moisture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/117,905 | 2008-05-09 | ||
| US12/117,905 US20090277195A1 (en) | 2008-05-09 | 2008-05-09 | Refrigeration system including a desiccant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101576326A true CN101576326A (en) | 2009-11-11 |
Family
ID=41152804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101751322A Pending CN101576326A (en) | 2008-05-09 | 2008-10-30 | Refrigeration system including a desiccant |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20090277195A1 (en) |
| CN (1) | CN101576326A (en) |
| DE (1) | DE102008038344A1 (en) |
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| CN110678340A (en) * | 2017-04-05 | 2020-01-10 | 法雷奥热***公司 | Indirect reversible air-conditioning circuit for a motor vehicle and corresponding operating method |
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| CN102259570A (en) * | 2010-05-26 | 2011-11-30 | 塞莫金公司 | Humidity-controlling and air-conditioning system |
| CN102259570B (en) * | 2010-05-26 | 2015-11-25 | 塞莫金公司 | Humid control and a/c system |
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| CN102716644A (en) * | 2012-06-20 | 2012-10-10 | 马军 | Vapor compression type heat pump and rotary wheel adsorptive dehumidification coupled operation dryer |
| CN104815632A (en) * | 2015-04-03 | 2015-08-05 | 青岛海尔股份有限公司 | Refrigerator drying apparatus drying agent recovery method |
| CN104815632B (en) * | 2015-04-03 | 2019-05-03 | 青岛海尔股份有限公司 | The desiccant restoration methods of refrigerator drying device |
| CN110678340A (en) * | 2017-04-05 | 2020-01-10 | 法雷奥热***公司 | Indirect reversible air-conditioning circuit for a motor vehicle and corresponding operating method |
| CN110678340B (en) * | 2017-04-05 | 2023-03-28 | 法雷奥热***公司 | Indirect reversible air-conditioning circuit for a motor vehicle and corresponding operating method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008038344A1 (en) | 2009-11-12 |
| US20090277195A1 (en) | 2009-11-12 |
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Open date: 20091111 |