CN204165264U - A kind of refrigeration system for radiation air-conditioner - Google Patents
A kind of refrigeration system for radiation air-conditioner Download PDFInfo
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- CN204165264U CN204165264U CN201420545908.6U CN201420545908U CN204165264U CN 204165264 U CN204165264 U CN 204165264U CN 201420545908 U CN201420545908 U CN 201420545908U CN 204165264 U CN204165264 U CN 204165264U
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- evaporimeter
- expansion valve
- refrigeration system
- radiation air
- pipeline
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Abstract
The utility model discloses a kind of refrigeration system for radiation air-conditioner, relate to refrigeration technology field.This refrigeration system comprises: compressor, condenser, expansion valve and evaporimeter, and described expansion valve comprises the first expansion valve and the second expansion valve, described evaporimeter comprise the first evaporimeter and the second evaporimeter; Described first expansion valve and described first evaporimeter are connected by pipeline and are formed first line, and described second expansion valve and described second evaporimeter to be connected formation second circuit by pipeline; Described first line to be connected described compressor and described condenser by pipeline successively with after described second lines in parallel, forms closed-loop path.Adopt the refrigeration system of said structure, on the basis realizing refrigeration, reduce the cost of refrigeration system, save installing space; Meanwhile, do not need outside energy ezpenditure, improve the energy saving of system.
Description
Technical field
The utility model relates to refrigeration technology field, particularly relates to a kind of refrigeration system for radiation air-conditioner.
Background technology
Radiation air-conditioner is basic heat-transfer area with furred ceiling, wall or ground, mainly carries out the air-conditioning system of heat exchange with the personnel in radiation mode and space, equipment etc.Radiation air-conditioner originates from Europe, and compared with convection current air-conditioning, radiation air-conditioner has a lot of advantage, as: improve the comfort level of occupant, without blowing feeling, energy-efficient, super low noise etc.Radiation air-conditioner obtains a wide range of applications abroad, and the nearly more than ten years are also steady developmenies at home, cause the concern of people gradually.
The system of radiation air-conditioner is divided into dehumidifying VMC and radiation terminal system two parts.Dehumidifying VMC bears indoor humidity load and fraction sensible heat load, and radiation terminal system then bears indoor most of sensible heat load.As can be seen here, these two parts all need refrigeration system, and the cryogenic temperature of the needs of the two is different.
At present, in order to the demand of the dehumidifying VMC the meeting radiation air-conditioner cryogenic temperature different with radiation terminal system, mostly adopt two cover refrigeration systems.The cost of two cover refrigeration systems is high, and the installing space taken is large, affects the application of its wider scope.
Simultaneously, in radiation terminal system, because the cold water temperature of demand is higher, and the temperature of chilled water is lower, directly can not using, needing to mix by supplying water the cold water temperature reaching radiation terminal system demand with backwater, so, consume the cold of system, thus add the energy consumption of refrigeration system, reduce its energy saving; In dehumidifying VMC, because air themperature after dehumidifying is very low, indoor of directly making a gift to someone can cause human body uncomfortable, need to adopt heat treatment again, thus add the consumption of heat energy, also reduce the energy saving of system.
Utility model content
The purpose of this utility model is to provide a kind of refrigeration system for radiation air-conditioner, thus solves the foregoing problems existed in prior art.
To achieve these goals, the technical solution adopted in the utility model is as follows:
For a refrigeration system for radiation air-conditioner, comprising: compressor 1, condenser 2, expansion valve and evaporimeter, described expansion valve comprises the first expansion valve 3 and the second expansion valve 4, described evaporimeter comprise the first evaporimeter 5 and the second evaporimeter 6;
Described first expansion valve 3 and described first evaporimeter 5 are connected by pipeline and are formed first line, and described second expansion valve 4 and described second evaporimeter 6 to be connected formation second circuit by pipeline;
Described first line to be connected described compressor 1 and described condenser 2 by pipeline successively with after described second lines in parallel, forms closed-loop path.
Further, for the refrigeration system of radiation air-conditioner, also comprise heat exchanger 7, described heat exchanger 7 is arranged on the pipeline between described condenser 2 and described expansion valve.
Particularly, described heat exchanger 7 is coil exchanger.
Further, for the refrigeration system of radiation air-conditioner, also comprise control valve 8, described control valve 8 is in parallel by pipeline with described heat exchanger 7.
Further, for the refrigeration system of radiation air-conditioner, also comprise four-way change-over valve 9, described four-way change-over valve 9 is for described evaporimeter of connecting, described compressor 1 and described condenser 2.
Particularly, described expansion valve is heating power expansion valve or electric expansion valve.
Particularly, described first evaporimeter 5 is direct-expansion-type evaporimeter.
Particularly, described second evaporimeter 6 is water heat exchange type evaporimeter.
The beneficial effects of the utility model are: the refrigeration system for radiation air-conditioner that the utility model embodiment provides, adopt a compressor band two evaporimeters, by two independently expansion valve regulate dehumidifying VMC and radiation terminal system evaporating temperature separately respectively, on the basis realizing refrigeration, reduce the cost of refrigeration system, save installing space; Meanwhile, do not need outside energy ezpenditure, improve the energy saving of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the refrigeration system for radiation air-conditioner that the utility model embodiment provides;
Fig. 2 be the utility model embodiment provide for the temperature in the refrigeration system work of radiation air-conditioner-entropy variation diagram.
In Fig. 1, the implication of each symbol is as follows:
1 compressor, 2 condensers, 3 first expansion valves, 4 second expansion valves, 5 first evaporimeters, 6 second evaporimeters, 7 heat exchangers, 8 control valves, 9 four-way change-over valves;
In Fig. 2, the course of work of refrigeration system is: 1 to 2 represents the compression process in compressor 1,2 to 3 to 4 represent the cooling procedure in condenser 2,4 to 5 represent cold again process in the heat exchanger 7,5 to 6 represent the throttling process in the first expansion valve 3,5 to 7 represent the throttling process in the second expansion valve 4, and 6 to 8 represent the evaporation process in the first evaporimeter 5, and 7 to 9 represent the evaporation process in the second evaporimeter 6.8 (9) to 1 represents the process that the refrigerant gas in the first evaporimeter 5 and the second evaporimeter 6 mixes.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the utility model is further elaborated.Should be appreciated that detailed description of the invention described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model embodiment provides a kind of refrigeration system for radiation air-conditioner, main see Fig. 1, also can see Fig. 2, comprise: compressor 1, condenser 2, expansion valve and evaporimeter, wherein, expansion valve comprises the first expansion valve 3 and the second expansion valve 4, and evaporimeter comprises the first evaporimeter 5 and the second evaporimeter 6;
First expansion valve 3 and the first evaporimeter 5 are connected by pipeline and are formed first line, and the second expansion valve 4 and the second evaporimeter 6 to be connected formation second circuit by pipeline;
Pass through pipeline compressors in series 1 and condenser 2 successively after first line and the second lines in parallel, form closed-loop path.
The workflow of the refrigeration system for radiation air-conditioner that the utility model embodiment provides is (can see Fig. 2): after the refrigerant gas mixing of the first evaporimeter 5 and the second evaporimeter 6, sucked by the suction end of compressor 1, after the internal compression of compressor 1, form the refrigerant gas of HTHP; The refrigerant gas of this HTHP enters in condenser 2, in condenser 2, be condensed into refrigerant liquid; This refrigerant liquid, in first line, reaches the temperature needed for fresh air dehumidifying system after the first expansion valve 3 throttling, then enters in the first evaporimeter 5, in the first evaporimeter 5, form refrigerant gas after evaporation; This refrigerant liquid, in the second circuit, reaches the temperature needed for radiation tail end system after the second expansion valve 4 throttling, then enters in the second evaporimeter 6, in the second evaporimeter 6, form refrigerant gas after evaporation; After the refrigerant gas of the first evaporimeter 5 and the second evaporimeter 6 mixes again, again sucked by the suction end of compressor 1, enter the refrigeration of next circulation.
Visible, the refrigeration system for radiation air-conditioner that the utility model embodiment provides, adopt a compressor band two evaporimeters, by two independently expansion valve regulate dehumidifying VMC and radiation terminal system evaporating temperature separately respectively, on the basis realizing refrigeration, reduce the cost of refrigeration system, save installing space; Meanwhile, do not need outside energy ezpenditure, improve the energy saving of system.
The refrigeration system that the utility model embodiment provides, can also comprise heat exchanger 7, heat exchanger 7 is arranged on the pipeline between condenser 2 and expansion valve.
In the heat exchanger 7, heat exchange has been carried out between refrigerant liquid and the air after dehumidifying.Air after dehumidifying cools further to through condensed refrigerant liquid, makes refrigerant liquid form cold refrigerant liquid, thus has fully reclaimed the cold in the air after dehumidifying, avoids the waste of cold; Meanwhile, through condensed refrigerant liquid, reheating is carried out to the air after dehumidifying, avoid and adopt traditional energy to the air reheating after dehumidifying, saved the consumption of heat energy; Like this, by adopting said structure, the interlock achieving dehumidifying VMC and radiation terminal system regulates, and achieves dual energy-conservation, improves the efficiency of refrigeration system.Meanwhile, because the air after dehumidifying has carried out reheating, so avoid because air themperature after dehumidifying is very low, indoor of directly making a gift to someone can cause the uncomfortable drawback of human body.
Wherein, heat exchanger 7 can adopt coil exchanger.Refrigerant liquid flows through in coil pipe, and the air after dehumidifying flows through outside coil pipe, realizes the heat exchange between the air after refrigerant liquid and dehumidifying.Coil exchanger is applicable to the heat exchange between gas and liquid more.
The refrigeration system that the utility model embodiment provides, also comprises control valve 8, and control valve 8 is in parallel by pipeline with heat exchanger 7.
Control valve 8 is as the bypass of heat exchanger 7 circuit, be mainly used for regulating the flow of the refrigerant liquid entered in heat exchanger 7, the air after refrigerant liquid and dehumidifying is enable to carry out sufficient heat exchange in the heat exchanger 7, the sufficient cold reclaimed in the air after dehumidifying, and fully reheating is carried out to the air after dehumidifying.
The refrigeration system that the utility model embodiment provides, also comprises four-way change-over valve 9, and four-way change-over valve 9 is for cascade evaporation device, compressor 1 and condenser 2.The effect of four-way change-over valve 9 is the switchings realized between kind of refrigeration cycle and heat pump cycle.
In the refrigeration system that the utility model embodiment provides, expansion valve can adopt heating power expansion valve or electric expansion valve.For regulating the evaporating temperature of the cold-producing medium in corresponding evaporimeter.
In the utility model embodiment, the first evaporimeter 5 can adopt direct-expansion-type evaporimeter.First evaporimeter 5 is arranged in Fresh air handling units, is the critical piece of Fresh air handling units cooling and dehumidifying.In first evaporimeter 5, refrigerant liquid and air carry out heat exchange, and the air supply fresh air dehumidifying system after cooling and dehumidifying, in order to reduce heat transfer temperature difference, strengthen cooling and dehumidifying effect, the first evaporimeter 5 adopts direct-expansion-type evaporimeter.
In the utility model embodiment, the second evaporimeter 6 can adopt water heat exchange type evaporimeter.In second evaporimeter 6, refrigerant liquid and water carry out heat exchange, the Cold water supply radiation tail end system after heat exchange.
By adopting technique scheme disclosed in the utility model, obtain effect useful as follows: the refrigeration system for radiation air-conditioner that the utility model embodiment provides, adopt a compressor band two evaporimeters, by two independently expansion valve regulate dehumidifying VMC and radiation terminal system evaporating temperature separately respectively, on the basis realizing refrigeration, reduce the cost of refrigeration system, save installing space; Meanwhile, do not need outside energy ezpenditure, improve the energy saving of system.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should look protection domain of the present utility model.
Claims (8)
1. for a refrigeration system for radiation air-conditioner, it is characterized in that, comprising: compressor, condenser, expansion valve and evaporimeter, described expansion valve comprises the first expansion valve and the second expansion valve, described evaporimeter comprise the first evaporimeter and the second evaporimeter;
Described first expansion valve and described first evaporimeter are connected by pipeline and are formed first line, and described second expansion valve and described second evaporimeter to be connected formation second circuit by pipeline;
Described first line to be connected described compressor and described condenser by pipeline successively with after described second lines in parallel, forms closed-loop path.
2. the refrigeration system for radiation air-conditioner according to claim 1, is characterized in that, also comprise heat exchanger, and described heat exchanger is arranged on the pipeline between described condenser and described expansion valve.
3. the refrigeration system for radiation air-conditioner according to claim 2, is characterized in that, described heat exchanger is coil exchanger.
4. the refrigeration system for radiation air-conditioner according to claim 2, is characterized in that, also comprise control valve, and described control valve is in parallel by pipeline with described heat exchanger.
5. the refrigeration system for radiation air-conditioner according to claim 1, is characterized in that, also comprise four-way change-over valve, and described four-way change-over valve is for described evaporimeter of connecting, described compressor and described condenser.
6. the refrigeration system for radiation air-conditioner according to claim 1, is characterized in that, described expansion valve is heating power expansion valve or electric expansion valve.
7. the refrigeration system for radiation air-conditioner according to claim 1, is characterized in that, described first evaporimeter is direct-expansion-type evaporimeter.
8. the refrigeration system for radiation air-conditioner according to claim 1, is characterized in that, described second evaporimeter is water heat exchange type evaporimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545908.6U CN204165264U (en) | 2014-09-22 | 2014-09-22 | A kind of refrigeration system for radiation air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545908.6U CN204165264U (en) | 2014-09-22 | 2014-09-22 | A kind of refrigeration system for radiation air-conditioner |
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| CN204165264U true CN204165264U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420545908.6U Expired - Fee Related CN204165264U (en) | 2014-09-22 | 2014-09-22 | A kind of refrigeration system for radiation air-conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931567A (en) * | 2015-12-30 | 2017-07-07 | 第摩码人居环境科技（北京）有限公司 | A kind of new each door type radiation air-conditioner unit |
| CN113310108A (en) * | 2020-02-27 | 2021-08-27 | 青岛海尔空调电子有限公司 | Air conditioning system |
-
2014
- 2014-09-22 CN CN201420545908.6U patent/CN204165264U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931567A (en) * | 2015-12-30 | 2017-07-07 | 第摩码人居环境科技（北京）有限公司 | A kind of new each door type radiation air-conditioner unit |
| CN113310108A (en) * | 2020-02-27 | 2021-08-27 | 青岛海尔空调电子有限公司 | Air conditioning system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20210922 |