CN1144989C - Coolant distributor of heat pump refrigeration circulation - Google Patents
Coolant distributor of heat pump refrigeration circulation Download PDFInfo
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- CN1144989C CN1144989C CNB001334638A CN00133463A CN1144989C CN 1144989 C CN1144989 C CN 1144989C CN B001334638 A CNB001334638 A CN B001334638A CN 00133463 A CN00133463 A CN 00133463A CN 1144989 C CN1144989 C CN 1144989C
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- distributor
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Abstract
The present invention relates to a coolant distributor for heat pump refrigeration circulation, which comprises a compressor, a distributor, a coolant flow controller and a by-pass pipe, wherein the compressor is used for alterably compressing and discharging coolant; the distributor is used for distributing the coolant which flows through an expansion device for expanding the coolant to a plurality of branch pipes and making the coolant flow to an evaporator provided with a plurality of sections; the coolant flow controller is arranged on one of the branch pipes of the distributor; the by-pass pipe is used for making the variable coolant discharged from the compressor flow to the coolant flow controller; one of the branch pipes of the distributor is opened /closed by the work of the coolant flow controller.
Description
Technical field
The present invention relates to a kind of heat pump refrigerating coolant circulating distributor, particularly relate to a kind of like this heat pump refrigerating coolant circulating distributor, it is owing to used the ability that can change evaporimeter according to the variation of the cooling agent discharge rate of discharging from variable displacement compressor, so can distribute to evaporimeter to cooling agent equably, the variation of above-mentioned amount of coolant is the pressure at expulsion owing to the variation of the cooling agent that has utilized the variable displacement compressor in the kind of refrigeration cycle that is contained in heat pump to discharge.
Background technology
Usually, a kind of refrigeration cycle comprises: one is used for compression working fluid, the compressor that its temperature and pressure is raise; One by means of being transformed into liquid phase through the HTHP working fluid of overcompression, and the heat of inside is discharged to the condenser that the outside is gone; An expansion gear that is used to reduce the pressure of liquid phase working fluid; And one by means of making in above-mentioned expansion gear the back of expanding become the evaporimeter that gas absorbs outside heat by evaporation liquid phase working fluid.Above-mentioned condenser and evaporimeter are finished and extraneous heat exchange, therefore just are referred to as heat exchanger.
Refrigerating circulatory device is applied in refrigerator and the showcase, with so that food keeps fresh, also is used for air-conditioner, is used for making indoor temperature keep comfortable according to outdoor temperature.
Air-conditioner is divided into the common air-conditioning device that only plays cooling effect and has cooling and heat the heat pump air conditioner of two kinds of effects.
As shown in Figure 1, in the kind of refrigeration cycle of heat pump air conditioner, a cross valve 20 that is used to change the ANALYSIS OF COOLANT FLOW direction is connected the exhaust side of the compressor 10 of compresses refrigerant, an external heat exchanger 30 is connected with an end of above-mentioned cross valve 20, an expansion gear 40 is connected with said external heat exchanger 30, and an internal exchanger 50 then is connected with expansion gear 40.
In addition, above-mentioned internal exchanger 50 also is connected with cross valve 20, and the suction side of compressor also is connected with cross valve 20.
More than each part all use tube connector 60 to be connected to each other.
A side that is used for making multi blade fans 70 that the air that carries out heat exchange flows at internal exchanger 50 to be installed in internal exchanger 50, a tube-axial fan 80 that is used to accelerate the heat exchange of external heat exchanger 30 then is installed in a side of external heat exchanger 30.
Kind of refrigeration cycle in the heat pump be the flow of coolant direction that relies on cross valve 20 to change to discharge from compressor 10, by the internal exchanger 50 of the function of finishing above-mentioned evaporimeter or condenser cool off or heating clamber in air.
At first, in the cooling work process, the flow direction of cross valve is configured such that the cooling agent of discharging from compressor 10 flows to external heat exchanger 30, meanwhile, and internal exchanger 50 guiding compressors 10.On the basis of this structure, according to the course of work of compressor 10, cooling agent circulates according to following: compressor 10-cross valve 20-external heat exchanger 30-expansion gear 40-internal exchanger 50-cross valve 20-compressor 10.
In above-mentioned circulation, external heat exchanger 30 plays condenser, and internal exchanger 50 plays evaporimeter.Cold air is produced by the internal exchanger 50 that plays the evaporimeter effect, and the running of cold air by multi blade fan 70 makes indoor circulation of air come air in the cooling chamber.Simultaneously, the heat exchange of external heat exchanger 30, i.e. the release of heat is owing to the running of tube-axial fan 80 has been accelerated.
In the heating work process, the flow direction of cross valve is configured such that the cooling agent of discharging from compressor 10 directly flows to internal exchanger 50, meanwhile, and external heat exchanger 30 guiding compressors 10.On the basis of this structure, according to the course of work of compressor 10, cooling agent circulates according to following: compressor 10-cross valve 20-internal exchanger 50-expansion gear 40-external heat exchanger 30-cross valve 20-compressor 10.
In above-mentioned circulation, internal exchanger 50 plays condenser, and external heat exchanger 30 plays evaporimeter.Warm air is produced by the internal exchanger 50 that plays the condenser effect, and the running of warm air by multi blade fan 70 makes indoor circulation of air come air in the heating clamber.Simultaneously, the heat exchange of external heat exchanger 30, i.e. the release of heat is owing to the running of tube-axial fan 80 has been accelerated.
In the heating work process of the kind of refrigeration cycle of heat pump, after the liquid phase coolant that flows through internal exchanger 50 is being passed through expansion gear 40, just flow to external heat exchanger 30, and when the cooling agent that flows through expansion gear 40 directly flows to external heat exchanger 30, externally fully evaporate in the heat exchanger 30.Therefore, as shown in Figure 2, a distributor 90 that is used for the coolant distribution after flowing through expansion gear 40 is given external heat exchanger 30 has been installed between above-mentioned expansion gear 40 and external heat exchanger 30, so that quicken the evaporation in the external heat exchanger 30.
As shown in Figure 3, be used for distributing the structure of the normal allocation device of cooling agent to comprise arm 92 on a body 91 with conulite shape and the many flat surfaces that is connected body 91 in the kind of refrigeration cycle of heat pump.The summit of body 91 and tube connector 60 connect, and many arms 92 then link to each other with external heat exchanger 30.
In the course of work of this normal allocation device 90, the cooling agent that is in different phases that flows through expansion gear 40 flows to the body 91 of distributor 90 by tube connector 60, and the many arms 92 that are assigned with device are diverted in each section of external heat exchanger 30.The cooling agent that flows in external heat exchanger 30 each section evaporates when flowing through each section, and the passage that the cooling agent after the evaporation flows by individual event collects, and flows through cross valve then, is inhaled in the compressor 10.
In heat pump refrigerating circulation, the running speed of compressor is along with the load on the internal exchanger 50 changes, that is, and and along with room temperature changes.Little when the load that is added on the internal exchanger 50, when compressor turned round under low speed, the discharge capacity of the cooling agent of discharging from compressor 10 was very little, and this a spot of cooling agent just circulates in the loop of evaporimeter.In addition, when the load that is added on the internal exchanger 50 is big, when compressor turned round under high speed, the discharge capacity of the cooling agent of discharging from compressor 10 was just quite big, and this a large amount of cooling agent just circulates in the loop of evaporimeter.
But, in the common coolant distribution structure of this heat pump refrigerating circulation, although the flow of coolant circulating is along with the variation of the running speed of compressor 10 changes in system, promptly, the ability to work of finishing the external heat exchanger 30 of evaporation in the heating work process can be utilized regularly, and correspondingly the ability to work of external heat exchanger 30 but can not suitably be utilized.
In other words, when a spot of cooling agent circulation time in the loop at evaporimeter under compressor 10 low-speed runnings, these a spot of cooling agents are to flow into external heat exchanger 30 and evaporation by distributor 90, the evaporation of cooling agent is finished very soon, so the temperature of whole external heat exchanger 30 can not remain on normal evaporating temperature or uniform evaporating temperature, so the efficient of system has reduced with regard to the efficient owing to external heat exchanger 30.In other words, when the environment temperature of external heat exchanger 30 just often, the evaporating temperature of its cooling agent just is higher than the temperature in the external heat exchanger 30, the evaporation efficiency of external heat exchanger 30 has reduced.
Summary of the invention
The purpose of this invention is to provide a kind of heat pump refrigerating coolant circulating distributor, it can be according to changing the evaporimeter that the cooling agent discharge rate of discharging on ground changes capacity from compressor by means of using, can distribute to evaporimeter to cooling agent equably, the variation of above-mentioned cooling agent discharge rate of discharging from compressor is owing to used the blowdown presssure of the cooling agent of the compressor variation ground discharge in the kind of refrigeration cycle that is included in heat pump.
Heat pump refrigerating coolant circulating distributor of the present invention comprises: one is used for compresses refrigerant and the compressor of discharging cooling agent changeably; A distributor, it is used for giving many arms the coolant distribution that flows through the expansion gear that makes the cooling agent expansion, and makes cooling agent flow to the evaporimeter with many sections; Cooling agent stream controller on a certain arm that is installed in above-mentioned distributor, be used for opening/closing cooling agent flowing to arm, described cooling agent stream controller comprises: the cylinder with inner space, a certain pipe jointing of one end of cylinder and described distributor, so that be communicated with the inner space, the other end of cylinder combines with bypass pipe, so that be communicated with the inner space; A slide block is used for pressure according to the cooling agent of the inner space that flows into cylinder by bypass pipe and comes a certain arm in the opening/closing distributor; And the inwall of an inner space that is contained in above-mentioned cylinder and the spring between the slide block, so that slide block is applied elastic force; And bypass pipe, be used to make the cooling agent of the variable that ejects from compressor to flow to above-mentioned cooling agent stream controller, it connects the outlet and the cooling agent stream controller of compressor, so that variation according to the variable coolant pressure of discharging from compressor, by means of the work of cooling agent stream controller, a certain arm of the described distributor of opening/closing.
Description of drawings
Fig. 1 is the piping diagram that common heat pump refrigerating circulates;
Fig. 2 is the piping diagram that comprises the common heat pump refrigerating circulation of distributor;
Fig. 3 is the amplification stereogram of distributor;
Fig. 4 is the piping diagram with heat pump refrigerating circulation of coolant distributor of the present invention;
Fig. 5 is the distributor in the coolant distributor that is included in the heat pump refrigerating of the present invention circulation and the stereogram of cooling agent stream controller;
Fig. 6 is the cross-sectional view that is included in the cooling agent stream controller in the heat pump refrigerating coolant circulating distributor of the present invention;
Fig. 7 is the vertical cross section figure that is included in the cooling agent stream controller in the heat pump refrigerating coolant circulating distributor of the present invention;
Fig. 8 is the vertical cross section figure of work (opening) state of heat pump refrigerating coolant circulating distributor of the present invention;
Fig. 9 is the vertical cross section figure of work (closing) state of heat pump refrigerating coolant circulating distributor of the present invention.
The specific embodiment
Describe heat pump refrigerating coolant circulating distributor of the present invention with reference to the accompanying drawings in detail
Embodiment.
The present invention can have many embodiments, and what will describe below is most preferred embodiment.
Below, the structure that every with common structure is identical all will be omitted its explanation.
As shown in Figure 4, in heat pump refrigerating circulation of the present invention with cooling and heating double action, externally between heat exchanger 110 and the expansion gear 120 that cooling agent is expanded a distributor 130 has been installed, and a cooling agent stream controller M has been installed in a side of distributor 130.The various parts that constitute the refrigeration system of heat pump all use tube connector 140 to couple together.
The exhaust side of compressor 150 is connected with cooling agent stream controller M with bypass pipe 160, so that a part of cooling agent of being discharged from the compressor 150 of compresses refrigerant in the heating work process of heat pump refrigerating circulation flows into the cooling agent stream controller M.
Below, the coupling part of detailed description bypass pipe 160.The part of the guide pipe 140 between one end of bypass pipe 160 and the compressor 150 that is located at compresses refrigerant and the internal exchanger 170 is connected, the other end of bypass pipe 160 then is connected with cooling agent stream controller M, so that make the cooling agent of discharging from compressor 150 flow to internal exchanger 170 the heating work process of heat pump refrigerating circulation.
Step-down that the cooling agent that is used to allow by bypass pipe 160 expands has been installed with capillary 230 on certain part of bypass pipe 160.
In addition, a feasible electric expansion valve that expands by the cooling agent of bypass pipe also can be installed and replace above-mentioned step-down capillary 230 on bypass pipe 160.
Comprise many sections in the internal exchanger 110, and in the heating work process of heat pump refrigerating system, play evaporimeter.
As shown in Figure 5, distributor 130 comprises a body 131, and it has a hollow cone shape, and the arm 132,133,134 that has flat surfaces many and body 131 to be connected.A tube connector 140 that is connected on the expansion gear 120 combines with the projection of body 131, and many arms 132,133,134 then are connected with internal exchanger 110.The arm 132,133,134 of distributor is connected on each section of internal exchanger 110.This internal exchanger 110 have three respectively with three arms, 132,133,134 corresponding section a, b, the c of distributor.
Cooling agent stream controller M is installed on the arm 134 in these many arms 132,133,134 of distributor.As shown in Figure 6 and Figure 7, this cooling agent stream controller M comprises: a cylinder 200, it has an inner space 201, the one side of cylinder 200 is connected with an arm of distributor 130, so that be communicated with its inner space 201, and the another side of cylinder 200 is connected with bypass pipe 160, so that be communicated with inner space 201; A slide block 210 is used for opened by pressure/the close a certain bypass pipe of distributor 130 according to the cooling agent of the inner space 201 that flows to cylinder 200 by bypass pipe 160; And the inwall of an inner space 201 that is contained in cylinder 200 and the spring between the slide block 210, so that give slide block 210 with elasticity.
Side in the cylinder body 202 with inner space 201 has a connecting hole 203 that communicates with inner space 201, also has a connecting hole 204 that passes inner space 201 on cylinder body 202.Above-mentioned inner space 201 has certain length, and has circular section.Connecting hole 204 is on the same axis line perpendicular to cylinder body 202, and is in the mid portion of inner space 201.Connecting hole 203 forms on cylinder body 202, is in the end of inner space 201 length directions, and is connected with an end of bypass pipe 160.On the relative inwall of inner space 201 and connecting hole 203, a spring contact portion 205 is arranged.The arm 134 of distributor is communicated with the connecting hole 204 of cylinder body.Here, arm 134 is divided into two parts, and these two parts are connected with the connecting hole 204 of cylinder body respectively, and the center line of arm 134 and inner space 201 are orthogonal.
Below, the course of work and the advantage of heat pump refrigerating coolant circulating distributor of the present invention are described.
As mentioned above, the kind of refrigeration cycle of heat pump has two kinds of cooling work process and heating work processes, can select as required.
Below, in conjunction with the example of heating work process the course of work and the advantage that heat pump refrigerating of the present invention circulates described.
In the heating work process of heat pump refrigerating circulation, the flow direction of cross valve 180 will be transformed into and make the cooling agent that ejects from compressor 150 directly flow to internal exchanger 170, and, meanwhile, make external heat exchanger 110 lead to compressor 150.On the basis of this structure, according to the operation process of compressor 10, cooling agent circulates according to following order: compressor 150-cross valve 180-internal exchanger 170-expansion gear 120-distributor 130-external heat exchanger 110-cross valve 180-compressor 150.
In this circulation, internal exchanger 170 plays condenser, and external heat exchanger 110 plays evaporimeter.In other words, heat is discharged to the external world by means of compresses refrigerant in internal exchanger 170, and most heats are absorbed by evaporative cooling agent in the heat exchanger 110 externally, therefore, just externally heat exchanger 110 around formed the cooling air.
In the course of work of heat pump refrigerating circulation, the running speed of compressor 150 changes along with the load on the internal exchanger 170, that is, change along with the room temperature that the place that internal exchanger 170 installs is installed.In more detail, when room temperature was low, compressor 150 was to run up, and the discharge capacity of cooling agent increases, and therefore the heating capacity in internal exchanger 170 is owing to the circulation of cooling agent in system accelerated to increase.When room temperature was higher, compressor 150 was with the running of lower speed, and the coolant displacement of compressor 150 reduces, so the heating capacity in internal exchanger 170 slows down and reduces owing to the circulation of cooling agent in system.
Simultaneously, in the heating work process, when the amount of coolant of discharging from compressor 150 is very big, a certain amount of cooling agent of from compressor 150, discharging, under high pressure conditions,, flow in the inner space 201 of the cylinder that constitutes cooling agent stream controller M by bypass pipe 160.When the cooling agent of high pressure flowed into the inner space 201 of cylinder, as shown in Figure 8, the slide block 210 in the inner space 201 of insertion cylinder was under pressure, and the spring 220 that is supporting slide block 210 is compressed, and slide block 210 is pushed to spring 220.Because slide block 210 is pushed to spring 220, through hole 211 on the slide block just conducting the inner flow passage of the arm 134 that combines with connecting hole on the cylinder, the arm 134 of distributor is in open mode, and, make arm 134 keep open mode owing to the discharge pressure of discharging cooling agents from compressor 150.Meanwhile, a large amount of cooling agents of discharging from compressor 150 flow through cross valve 180, after internal exchanger 170 and the expansion gear 120, flow in the distributor 130, then, the cooling agent that flows in the distributor 130 flows in the external heat exchanger 110 by many arms 132,133,134 of distributor 130 again.At this moment, cooling agent flows into each section a, b, the c of external heat exchanger 110 by all arms 132,133 and 134 that comprise the arm 134 that cooling agent stream controller M has been installed.Flow into each section a of external heat exchanger 110, the cooling agent among b, the c evaporates in each section a, b, c, the vapor collection after the evaporation and is inhaled in the compressor 150 by cross valve 180 in a runner.
Equally, when a large amount of cooling agents when compressor 150 is discharged, cooling agent is just shunted by all arms 132,133,134 of distributor equably, and flow among all section a, b, the c of external heat exchanger 110, then, cooling agent promptly, is evaporated by whole external heat exchanger the time when passing through all sections of external heat exchanger 110.
When the amount of coolant of discharging from compressor 150 seldom the time, a part of cooling agent that ejects from compressor 150 promotes to be arranged on the slide block 210 the inner space of cylinder slightly by bypass pipe 160.
As shown in Figure 9, because it is very little to promote the pressure of slide block 210, slide block 210 just moves backward to the home position by means of the recuperability of the spring 220 that is supporting slide block 210, the inner flow passage of the arm 134 on the through hole 211 on the slide block and the connecting hole 204 that is combined in cylinder staggers, so the arm 134 of distributor 130 is closed by slide block 210.Meanwhile, the a small amount of cooling agent that ejects from press 150 flows into distributor 130 by cross valve 180, internal exchanger 170, expansion gear 120, and the cooling agent that flows in the distributor 130 then flowed into external heat exchanger 110 in 132,133 minutes by the arm except arm 134.In other words, in a of the external heat exchanger 110 that the cooling agent inflow is connected with arm 132,133, the b section, and do not flow into the arm 134 that cooling agent stream controller M has been installed, do not flow among the section c that is connected with arm 134 in the external heat exchanger 110 so that prevent cooling agent.Cooling agent in the external heat exchanger 1 10 evaporates in each section a, b respectively, and the coolant collecting after the evaporation and is inhaled in the compressor 150 by cross valve in a runner.
In other words, when compressor 150 is discharged a spot of cooling agent, cooling agent just flows in the external heat exchanger 110 by other arms 132,133 except the arm 134 that cooling agent stream controller M is installed, and evaporates, and the each several part of whole external heat exchanger 110 has all utilized.
The distribution of the flow of the cooling agent of inflow external heat exchanger 110 can be regulated, so that when the course of work of system changes, the variation of the coolant displacement of discharging according to compressor 150 utilizes the disengagement area of external heat exchanger 110 (playing evaporimeter in the heating work process), promptly, the running speed of compressor 150, will be according to being added in the discharge capacity that load in the heat pump refrigerating circulation change the cooling agent of discharging from compressor 150, and to utilize the discharge pressure of cooling agent according to the variation of the coolant displacement of compressor 150.
A step-down capillary 230 or the electric expansion valve that the step-down that is installed on the bypass pipe 160 is used by means of the pressure reduction of the cooling agent that makes bypass pipe 160 that compressor 150 ejects and flows to, make the pressure that is added on the cooling agent stream controller M reduce.Therefore, the elastic modelling quantity that is contained in the spring among the cooling agent stream controller M just can reduce.
Heat pump refrigerating coolant circulating distributor of the present invention can improve the efficient of whole kind of refrigeration cycle owing to improved the efficient of evaporimeter, this be because, it can utilize the discharge pressure of the cooling agent of discharging according to the compressor in the heat pump refrigerating circulation of load variations well, give external heat exchanger the cooling agent uniform distribution, so that utilize the area of external heat exchanger well according to the coolant displacement of compressor variation, effectively utilize external heat exchanger, and prevented the rising of refrigerant evaporates temperature.
Because the present invention can implement in various mode under the prerequisite that does not break away from its design or essential characteristic, so should be appreciated that, above-described embodiment, except as otherwise noted, be not limited to any details of being stated, and should limit its design and scope, therefore by claims, changes and improvements or its equivalent that all fall in claims scope all should be included in claims scope of the application.
Claims (4)
1. heat pump refrigerating coolant circulating distributor, it comprises:
One is used for compresses refrigerant and the compressor of discharging cooling agent changeably;
A distributor, it is used for giving many arms the coolant distribution that flows through the expansion gear that makes the cooling agent expansion, and makes cooling agent flow to the evaporimeter with many sections;
Cooling agent stream controller on a certain arm that is installed in described distributor, be used for the cooling agent stream of opening/closing to arm, described cooling agent stream controller comprises: the cylinder with inner space, a certain pipe jointing of one end of cylinder and described distributor, so that be communicated with the inner space, the other end of cylinder combines with bypass pipe, so that be communicated with the inner space; A slide block is used for pressure according to the cooling agent of the inner space that flows into cylinder by bypass pipe and comes a certain arm in the opening/closing distributor; And the inwall of an inner space that is contained in above-mentioned cylinder and the spring between the slide block, so that slide block is applied elastic force; And
A bypass pipe, it is by connecting the outlet and the cooling agent stream controller of compressor, make a certain amount of cooling agent that ejects changeably from compressor flow to described cooling agent stream controller, so that according to the blowdown presssure that changes the cooling agent of discharging on ground from compressor, by means of the work of cooling agent stream controller, described a certain arm of opening/closing distributor.
2. device as claimed in claim 1 is characterized in that, described heat pump refrigerating coolant circulating distributor comprises a step-down capillary that is installed on the bypass pipe, is used for reducing the pressure of the cooling agent that flows into bypass pipe.
3. device as claimed in claim 1 is characterized in that, described heat pump refrigerating coolant circulating distributor comprises an electronic pressure expansion valve that is installed on the bypass pipe, is used to reduce the pressure of the cooling agent that flows through bypass pipe.
4. device as claimed in claim 1 is characterized in that, a certain arm of the coolant distributor in the circulation of described heat pump refrigerating combines with described cylinder, makes the direction of this root arm of this distributor intersect with the axis normal of the inner space of described cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001334638A CN1144989C (en) | 2000-11-03 | 2000-11-03 | Coolant distributor of heat pump refrigeration circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001334638A CN1144989C (en) | 2000-11-03 | 2000-11-03 | Coolant distributor of heat pump refrigeration circulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1353291A CN1353291A (en) | 2002-06-12 |
| CN1144989C true CN1144989C (en) | 2004-04-07 |
Family
ID=4595733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001334638A Expired - Fee Related CN1144989C (en) | 2000-11-03 | 2000-11-03 | Coolant distributor of heat pump refrigeration circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1144989C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358920A (en) * | 2013-05-31 | 2016-02-24 | 西门子公司 | Heat pump for using environmentally compatible coolants |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324280C (en) * | 2002-11-26 | 2007-07-04 | 乐金电子(天津)电器有限公司 | Refrigeration circulation and control method thereof |
| CN100445658C (en) * | 2005-12-19 | 2008-12-24 | 上海约顿机房设备有限公司 | Air conditioner for accurately control temperature and humidity |
| DE102007028565A1 (en) * | 2007-06-19 | 2008-12-24 | Danfoss A/S | refrigeration Equipment |
| CN105588182B (en) * | 2014-11-25 | 2019-04-30 | 海信（山东）空调有限公司 | A kind of air conditioner indoor unit and its dehumanization method, dehumidification device |
-
2000
- 2000-11-03 CN CNB001334638A patent/CN1144989C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358920A (en) * | 2013-05-31 | 2016-02-24 | 西门子公司 | Heat pump for using environmentally compatible coolants |
| CN105358920B (en) * | 2013-05-31 | 2018-05-04 | 西门子公司 | Heat pump for the refrigerant of use environment compatibility |
| US11473819B2 (en) | 2013-05-31 | 2022-10-18 | Siemens Energy Global GmbH & Co. KG | Heat pump for using environmentally compatible coolants |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1353291A (en) | 2002-06-12 |
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