CN202470336U - Air conditioner and cooling system of air conditioner - Google Patents
Air conditioner and cooling system of air conditioner Download PDFInfo
- Publication number
- CN202470336U CN202470336U CN2012200837309U CN201220083730U CN202470336U CN 202470336 U CN202470336 U CN 202470336U CN 2012200837309 U CN2012200837309 U CN 2012200837309U CN 201220083730 U CN201220083730 U CN 201220083730U CN 202470336 U CN202470336 U CN 202470336U
- Authority
- CN
- China
- Prior art keywords
- cooling system
- frequency converter
- condenser
- cooling
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 87
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims description 22
- 230000008020 evaporation Effects 0.000 claims description 22
- 230000008676 import Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 description 17
- 239000012808 vapor phase Substances 0.000 description 12
- 239000007791 liquid phase Substances 0.000 description 9
- 238000004378 air conditioning Methods 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 4
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model provides an air conditioner and cooling system of air conditioner. The cooling system comprises a condenser (1), an evaporator (5) and a compressor (6) which are sequentially connected and form a loop, wherein a refrigerant flow path is arranged in the condenser (1), the cooling system also comprises a frequency converter (2), a cooling flow path is arranged in the frequency converter (2), and the cooling flow path is communicated with the refrigerant flow path in the condenser (1) through a liquid taking flow path and is communicated with the evaporator (5) through a liquid returning flow path. On the premise that the original refrigerating system of the air conditioner exists, the frequency converter is communicated with the original refrigerating system of the air conditioner, the structure is simple, and the influence on the whole structure of the unit is small; the refrigerant can not generate scaling and corrosion phenomena in the pipeline of the cooling system; the refrigerant in the condenser is adopted to cool the frequency converter, the temperature of the refrigerant is controllable, the influence of the external environment is small, and the cooling effect is stable and reliable.
Description
Technical field
The utility model relates to the air-conditioning system field, in particular to the cooling system of air-conditioner and air-conditioner.
Background technology
Compressor is the heart of frequency-conversion air-conditioning system; The rotating speed of compressor directly has influence on the service efficiency of air-conditioning; Frequency converter is exactly the control system that is used for controlling and adjusting compressor rotary speed, guarantees that therefore the frequency converter operate as normal is to realize the prerequisite of convertible frequency air-conditioner steady operation.But frequency converter can produce heat in work, and along with the raising of motor speed, the heat of its generation also can constantly increase, and this solves the cooling problem of frequency converter with regard to needing reasonable method.The common type of cooling have air-cooled and with the cooling water-cooled; But the air-cooled demand that is difficult to satisfy real work, it is also not ideal to use cooling water to cool off the frequency converter effect, at first; Cool off frequency converter with cooling water; Because water has certain corrosiveness to pipeline, thereby in pipeline and frequency converter, produces dirt, can cause the heat exchange effect to descend like this; Secondly, cooling water receives the external world and the influence of unit operation operating mode easily, causes cooling water temperature to change, thereby influences the cooling effect of frequency converter greatly.
Therefore, for the service behaviour that makes centrifugal unit is more stable, needing cooling system that we seek a kind of frequency converter badly, to solve cooling system structure of the prior art complicated, is prone to produce dirt, cooling effect problem of unstable.
The utility model content
The utility model aims to provide the cooling system of a kind of air-conditioner and air-conditioner, to solve cooling system structure complicacy in the prior art, is prone to produce dirt, cooling effect problem of unstable.
The utility model provides a kind of cooling system of air-conditioner; Comprise the condenser, evaporimeter and the compressor that link to each other successively and constitute the loop; Be provided with refrigerant flow path in the condenser, cooling system also comprises frequency converter, is provided with cooling flowing path in the frequency converter; Cooling flowing path is connected with refrigerant flow path in the condenser through getting the flow road, and is connected with evaporimeter through going back to the flow road.
Further, above-mentioned cooling system also comprises flash evaporation, and flash evaporation is arranged on back on the flow road; Have first import, liquid outlet and gas vent; First import is connected with frequency converter, and liquid outlet and evaporimeter are connected, and gas vent and compressor are connected.
Further, also be provided with second import on the above-mentioned flash evaporation, second import is connected with refrigerant flow path in the condenser.
Further, getting on the flow road between condenser and the frequency converter electric expansion valve is set.
Further, above-mentioned cooling system also comprises the first throttle orifice plate, is arranged on getting on the flow road between condenser and the frequency converter.
Further, above-mentioned cooling system also comprises second restricting orifice and/or the 3rd restricting orifice, and second restricting orifice is arranged on the stream between condenser and the flash evaporation, and the 3rd restricting orifice is arranged on returning on the flow road between flash evaporation and the evaporimeter.
According to the utility model on the other hand, a kind of air-conditioner that comprises the cooling system of the utility model also is provided.
According to the cooling system of the utility model, under the prerequisite that the former refrigeration system of air-conditioner exists, frequency converter is connected with the former refrigeration system of air-conditioner, simple in structure, little to the integrally-built influence of unit; Cold-producing medium can not produce fouling and corrosion phenomenon in the pipeline of cooling system; Adopt the refrigerant cools frequency converter in the condenser, the Controllable Temperature of cold-producing medium, it is less to be affected by the external environment, and cooling effect is reliable and stable; In a cooling system, accomplish simultaneously the cooling of frequency converter and the refrigerating function of air-conditioning itself, under the normal and stable work prerequisite of frequency converter, guaranteed the normal operation of air-conditioner effectively.
Description of drawings
Figure of description is used to provide the further understanding to the utility model, constitutes the part of the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 shows the structural representation according to the cooling system of a kind of embodiment of the utility model;
Fig. 2 shows the structural representation according to the cooling system of the another kind of embodiment of the utility model;
Fig. 3 shows the structural representation according to the cooling system of another embodiment of the utility model; And
Fig. 4 shows the cooling flowing path sketch map according to the frequency converter of the utility model.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the embodiment of the utility model is carried out detailed explanation; But following embodiment and accompanying drawing only are in order to understand the utility model; And can not limit the utility model, the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1; A kind of cooling system of air-conditioner is provided in a kind of embodiment of the utility model, has comprised the condenser 1, evaporimeter 5 and the compressor 6 that link to each other successively and constitute the loop, be provided with refrigerant flow path in the condenser 1; This cooling system also comprises frequency converter 2; Be provided with cooling flowing path in the frequency converter 2, cooling flowing path is connected with refrigerant flow path in the condenser 1 through getting the flow road, and is connected with evaporimeter 5 through going back to the flow road.
Cold-producing medium is operation in the following manner in above-mentioned cooling system: the high pressure liquid phase refrigerant in the refrigerant flow path of condenser 1 partly gets into frequency converter 2; The cold-producing medium and the frequency converter 2 that get into frequency converter 2 carry out heat exchange; Make the cold-producing medium entering evaporimeter 5 of accomplishing heat exchange with frequency converter 2, and in evaporimeter 5, carry out further heat exchange, obtain the low-pressure vapor phase cold-producing medium with external environment condition; Make the low-pressure vapor phase cold-producing medium get into compressor 6, and compression obtain the high pressure vapor cold-producing medium in compressor 6; And the high pressure vapor cold-producing medium flows back to condenser 1, and condensation obtains the high pressure liquid phase refrigerant in said condenser 1.In the frequency converter 2 of above-mentioned cooling system cooling air conditioner, the former refrigeration system of air-conditioner still operate as normal is accomplished the refrigerating function of environment to external world.
Under the prerequisite of the former refrigeration system that does not change air-conditioner; The utility model is connected frequency converter 2 and forms with condenser 1, evaporimeter 5 and the compressor 6 of the former refrigeration system of air-conditioner cooling system; Made full use of the existing apparatus of air-conditioner, simple in structure, little to the integrally-built influence of unit; The cold-producing medium of accomplishing heat exchange with frequency converter 2 possibly be liquid phase refrigerant, vapor phase refrigerant or gas-liquid two-phase cold-producing medium; Get into evaporimeter 5 and carry out heat exchange with external environment; The refrigeration of assisted air conditioner; And can change stable low-pressure vapor phase cold-producing medium into, get into the overall operation that can not influence unit behind compressor 6 and the condenser 1 again.Cold-producing medium can not produce fouling and corrosion phenomenon in the pipeline of cooling system; In a cooling system, accomplish simultaneously the cooling of frequency converter 2 and the refrigerating function of air-conditioning itself, under the normal and stable work prerequisite of frequency converter 2, guaranteed the normal operation of air-conditioner effectively.
As shown in Figure 2; In the another kind of embodiment of the utility model, the cooling system of the utility model also comprises flash evaporation 4 on the basis of cooling system shown in Figure 1, and flash evaporation 4 is arranged on back on the flow road; Have first import, liquid outlet and gas vent; First import is connected with frequency converter 2, and liquid outlet and evaporimeter 5 are connected, and gas vent and compressor 6 are connected.
The former refrigeration system of the air-conditioner that is made up of condenser 1, evaporimeter 5 and compressor 6 still exists; Utilize former refrigeration system to accomplish air-conditioner to external world the refrigerating function of environment the time; In the cooling system of this embodiment; Make the cold-producing medium entering flash evaporation 4 of accomplishing heat exchange with frequency converter 2, in flash evaporation 4, obtain low-pressure vapor phase cold-producing medium and low pressure liquid phase refrigerant through shwoot; The low pressure liquid phase refrigerant gets into evaporimeter 5, and in evaporimeter 5, carries out further heat exchange with external environment condition, obtains the low-pressure vapor phase cold-producing medium; Aforesaid low-pressure vapor phase cold-producing medium gets into compressor 6, obtains the high pressure vapor cold-producing medium through overcompression; And the high pressure vapor cold-producing medium flows back to condenser 1.
Flash evaporation 4 can obtain stable vapor phase refrigerant and liquid phase refrigerant with the shwoot separation of cold-producing medium; Vapor phase refrigerant gets into 6 pairs of impellers of compressor and carries out tonifying Qi, and liquid phase refrigerant gets into evaporimeter 5, carries out heat exchange with external environment; Auxiliary completion is the refrigeration of environment to external world; The vapor phase refrigerant that obtains gets into compressor 6 and condenser 1 again, along with the cooling system circulation of whole air-conditioning, can not influence the overall operation of unit.
As shown in Figure 3, in another embodiment of the utility model, on the basis of cooling system shown in Figure 2, also be provided with second import on the flash evaporation 4 of the cooling system of the utility model, second import is connected with refrigerant flow path in the condenser 1.
In the cooling system of this embodiment; Make the part cold-producing medium in the refrigerant flow path of condenser 1 directly get into flash evaporation 4; And and mixes in flash evaporation 4 with cold-producing medium that frequency converter 2 is accomplished heat exchanges, pass through shwoot and obtain low-pressure vapor phase cold-producing medium and low pressure liquid phase refrigerant.
Air-conditioner is realized refrigerating function through the refrigeration system that condenser 1, evaporimeter 5 and compressor 6 constitute in the prior art; The utility model links to each other the refrigerant flow path of condenser 1 with flash evaporation 4; Thereby the cooling system of the former refrigeration system of air-conditioner and frequency converter combined constitute the cooling system of the utility model; Make with frequency converter 2 in accomplish the cold-producing medium of heat exchange and form the gas-liquid two-phase cold-producing medium with the refrigerant mixed that directly flows out from condenser 1; Obtain the low-pressure vapor phase cold-producing medium behind the shwoot and get into compressor 6,, obtain the low pressure liquid phase refrigerant behind the shwoot and get into the refrigerating function that evaporimeter 5 is accomplished former refrigeration system the runner air make-up of compressor 6; Former refrigeration system to air-conditioner do not exert an influence, and realized the effect that cooling of air-conditioner internal structure and environment cools are to external world carried out simultaneously.
The cooling flowing path that is provided with in the frequency converter 2 in the cooling system of the utility model adopts the design of prior art can realize that preferably, frequency converter 2 cooling flowing paths of the utility model are formed by the cooling tube that is bent to form 21, and are as shown in Figure 4.This cooling tube can prolong the flowing time of cold-producing medium in frequency converter 2, prolongs the heat exchanger time of frequency converter 2 and cold-producing medium, optimizes the cooling effect of frequency converter 2.
In the utility model the foregoing description, shown in Fig. 1-3, getting between condenser 1 and frequency converter 2 is provided with electric expansion valve 3 on the flow road.The setting of electric expansion valve 3 can be used for getting into according to the adjustment of frequency converter 2 flow of the cold-producing medium of frequency converter 2, thereby has effectively avoided the appearance of frequency converter 2 inner condensations.
And as shown in Figure 3, cooling system of the present invention can also be provided with restricting orifice according to actual needs, and restricting orifice comprises first throttle orifice plate 31, second restricting orifice 32 and the 3rd restricting orifice 33 alternatively.First throttle orifice plate 31 is arranged on getting on the flow road between condenser 1 and the frequency converter 2; Second restricting orifice 32 is arranged on the stream between condenser 1 and the flash evaporation 4; The 3rd restricting orifice 33 is arranged on returning on the flow road between flash evaporation 4 and the evaporimeter 5, and above-mentioned restricting orifice can be selected one and use any two or three restricting orifices that also can select wherein to be used.Utilize restricting orifice that cold-producing medium is carried out effective throttling, make cold-producing medium in cooling system, keep stable pressure, satisfy the requirement of frequency converter 2, flash evaporation 4 and 5 pairs of entering of evaporimeter cold-producing medium wherein, guarantee the operate as normal of air-conditioner.
According to the cooling system of the utility model, under the prerequisite that the former refrigeration system of air-conditioner exists, frequency converter is connected with the former refrigeration system of air-conditioner, simple in structure, little to the integrally-built influence of unit; Cold-producing medium can not produce fouling and corrosion phenomenon in the pipeline of cooling system; In a cooling system, accomplish simultaneously the cooling of frequency converter and the refrigerating function of air-conditioning itself, under the normal and stable work prerequisite of frequency converter, guaranteed the normal operation of air-conditioner effectively.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. the cooling system of an air-conditioner; Comprise the condenser (1), evaporimeter (5) and the compressor (6) that link to each other successively and constitute the loop, said condenser is provided with refrigerant flow path in (1), it is characterized in that; Said cooling system also comprises frequency converter (2); Said frequency converter is provided with cooling flowing path in (2), and said cooling flowing path is connected with said refrigerant flow path in the said condenser (1) through getting the flow road, and is connected with said evaporimeter (5) through going back to the flow road.
2. cooling system according to claim 1; It is characterized in that said cooling system also comprises flash evaporation (4), said flash evaporation (4) is arranged on said time flow road; Have first import, liquid outlet and gas vent; Said first import is connected with said frequency converter (2), and said liquid outlet and said evaporimeter (5) are connected, and said gas vent and said compressor (6) are connected.
3. cooling system according to claim 2 is characterized in that, said flash evaporation also is provided with second import on (4), and said second import is connected with said refrigerant flow path in the said condenser (1).
4. according to each described cooling system among the claim 1-3, it is characterized in that getting between said condenser (1) and said frequency converter (2) is provided with electric expansion valve (3) on the flow road.
5. cooling system according to claim 4 is characterized in that, said cooling system also comprises first throttle orifice plate (31), is arranged on getting on the flow road between said electric expansion valve (3) and the said frequency converter (2).
6. according to claim 2 or 3 described cooling systems; It is characterized in that; Said cooling system also comprises second restricting orifice (32) and/or the 3rd restricting orifice (33); Said second restricting orifice (32) is arranged on the stream between said condenser (1) and the said flash evaporation (4), and said the 3rd restricting orifice (33) is arranged on returning on the flow road between said flash evaporation (4) and the said evaporimeter (5).
7. an air-conditioner comprises cooling system, it is characterized in that, said cooling system is each described cooling system among the claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200837309U CN202470336U (en) | 2012-03-07 | 2012-03-07 | Air conditioner and cooling system of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200837309U CN202470336U (en) | 2012-03-07 | 2012-03-07 | Air conditioner and cooling system of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202470336U true CN202470336U (en) | 2012-10-03 |
Family
ID=46918491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200837309U Expired - Lifetime CN202470336U (en) | 2012-03-07 | 2012-03-07 | Air conditioner and cooling system of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202470336U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307715A (en) * | 2012-03-07 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner, cooling system of air conditioner and cooling method |
| ITMI20130910A1 (en) * | 2013-06-03 | 2014-12-04 | Frascold S P A | COOLING DEVICE FOR A FREQUENCY CONVERTER, FREQUENCY CONVERTER UNIT INCLUDING THE Aforementioned COOLING AND REFRIGERATION SYSTEM OR AIR CONDITIONING INCLUDING THE CONVERTER UNIT |
| CN106546020A (en) * | 2016-10-27 | 2017-03-29 | 重庆美的通用制冷设备有限公司 | Air conditioning system |
| CN109442777A (en) * | 2018-11-30 | 2019-03-08 | 珠海格力电器股份有限公司 | air conditioning unit |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN112460823A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioner and air conditioner |
| CN112460755A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit, air conditioning unit and control method |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
-
2012
- 2012-03-07 CN CN2012200837309U patent/CN202470336U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307715B (en) * | 2012-03-07 | 2016-08-24 | 珠海格力电器股份有限公司 | Air conditioner, cooling system of air conditioner and cooling method |
| CN103307715A (en) * | 2012-03-07 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner, cooling system of air conditioner and cooling method |
| CN105493646B (en) * | 2013-06-03 | 2019-05-10 | 富拉思口德股份公司 | Equipment for freezing or adjusting |
| ITMI20130910A1 (en) * | 2013-06-03 | 2014-12-04 | Frascold S P A | COOLING DEVICE FOR A FREQUENCY CONVERTER, FREQUENCY CONVERTER UNIT INCLUDING THE Aforementioned COOLING AND REFRIGERATION SYSTEM OR AIR CONDITIONING INCLUDING THE CONVERTER UNIT |
| WO2014195870A1 (en) * | 2013-06-03 | 2014-12-11 | Frascold S.P.A. | Cooling device for a frequency converter, converter assembly comprising said cooling device and refrigerating or conditioning plant comprising said converter assembly |
| US10849256B2 (en) | 2013-06-03 | 2020-11-24 | Frascold S.P.A. | Cooling device for a frequency converter, converter assembly comprising said cooling device and refrigerating or conditioning plant comprising said converter assembly |
| CN105493646A (en) * | 2013-06-03 | 2016-04-13 | 富拉思口德股份公司 | Cooling device for a frequency converter, converter assembly comprising said cooling device and refrigerating or conditioning plant comprising said converter assembly |
| CN106546020B (en) * | 2016-10-27 | 2018-04-06 | 重庆美的通用制冷设备有限公司 | Air-conditioning system |
| CN106546020A (en) * | 2016-10-27 | 2017-03-29 | 重庆美的通用制冷设备有限公司 | Air conditioning system |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN109442777A (en) * | 2018-11-30 | 2019-03-08 | 珠海格力电器股份有限公司 | air conditioning unit |
| CN109442777B (en) * | 2018-11-30 | 2024-04-09 | 珠海格力电器股份有限公司 | Air conditioning unit |
| CN112460823A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioner and air conditioner |
| CN112460755A (en) * | 2019-09-06 | 2021-03-09 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit, air conditioning unit and control method |
| CN112460755B (en) * | 2019-09-06 | 2022-07-19 | 中车株洲电力机车研究所有限公司 | Frequency converter thermal management system of air conditioning unit, air conditioning unit and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202470336U (en) | Air conditioner and cooling system of air conditioner | |
| CN103307715A (en) | Air conditioner, cooling system of air conditioner and cooling method | |
| CN103759455B (en) | Reclamation frequency conversion thermal multiple heat pump and control method thereof | |
| CN202328574U (en) | Air supply system of central air conditioner with two cooling coils | |
| CN102889650B (en) | Integral combination type computer room air conditioning unit and control method thereof | |
| CN103673138B (en) | Air-conditioner and control method thereof | |
| CN102278795A (en) | Central air-conditioning air supply system adopting double cooling coils | |
| CN103912939A (en) | Air conditioning system | |
| CN105135725A (en) | Single-compressor secondary dynamic refrigeration cold-storage air-conditioning system and refrigeration method thereof | |
| CN109163399A (en) | Reduce the chilled water system of host runing time | |
| CN105180304A (en) | Air-conditioning outdoor unit, multifunctional air-conditioning system and working method thereof | |
| CN103423823A (en) | Compound base station room air conditioner | |
| CN202630266U (en) | Cooling device for combined type pump driving annular heat pipe | |
| CN2896123Y (en) | Heat-pump water heater | |
| CN202350223U (en) | Air conditioner and heat pipe all-in-one machine of engine room | |
| CN205561111U (en) | Constant temperature dehumidification system | |
| CN202371930U (en) | Water and air dual-source heat pump unit | |
| CN102563785A (en) | Air conditioning unit combining gas turning wheel-dew point type evaporative cooling and mechanical refrigeration | |
| CN104362835B (en) | A kind of heat management system for motor train traction | |
| CN103836742B (en) | Multi-connected heat pipe machine room air conditioning system | |
| CN103206814A (en) | Supercooling device for magnetic suspension refrigerating system with natural cold source | |
| CN205014520U (en) | Cold type salt solution dehumidification unit in two cold sources of heat pump | |
| CN105135743A (en) | Air saline solution cold water unit | |
| CN104534591A (en) | Heat pump type double-cold-source liquid dehumidifier unit | |
| CN204513638U (en) | The two low-temperature receiver solution dehumidification unit of a kind of heat-pump-type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |