CN211345669U - Air conditioner with heat recovery function under refrigeration working condition - Google Patents
Air conditioner with heat recovery function under refrigeration working condition Download PDFInfo
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- CN211345669U CN211345669U CN201922304588.0U CN201922304588U CN211345669U CN 211345669 U CN211345669 U CN 211345669U CN 201922304588 U CN201922304588 U CN 201922304588U CN 211345669 U CN211345669 U CN 211345669U
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Abstract
The utility model discloses an air conditioner with heat recovery function under refrigeration condition, which comprises a compressor, a four-way valve, a fin heat exchanger, a capillary tube, a liquid storage device, a gas-liquid separator, a shell and tube heat exchanger and a heat recovery brazing plate heat exchanger, wherein the outlet of the C tube of the four-way valve is connected with a check valve and then is connected with the inlet of the fin heat exchanger; the outlet of the pipe C of the four-way valve is connected with the inlet of the heat recovery brazed plate heat exchanger; the outlet of the heat recovery brazed plate heat exchanger is connected with another one-way valve, and the back of the one-way valve is connected with the inlet of the fin heat exchanger. The purposes that one unit only provides hot water under the refrigeration working condition, the heating quantity and the energy efficiency ratio under the heating working condition are not influenced at all, the cost is low, and the performance is reliable are achieved.
Description
Technical Field
The utility model relates to an air conditioning unit field specifically is an air conditioner that has heat recovery function under refrigeration operating mode.
Background
At present, the traditional air conditioner has the effects of refrigeration and heating. With the development of socio-economic, many users require air conditioners to provide hot water both in cooling and heating. The traditional air conditioning equipment can provide air conditioning hot water only by utilizing self heat exchange equipment and water circulation during refrigeration, and does not have the function of providing hot water during heating.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air conditioner that has heat recovery function under refrigeration operating mode to solve prior art air conditioner and only can provide air conditioner hot water under refrigeration operating mode, do not possess the problem that provides the hot water function under the heating operating mode.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
the utility model provides an air conditioner that has heat recovery function under refrigeration operating mode which characterized in that: including compressor, cross valve to and heat recovery brazed plate heat exchanger, air-cooled finned heat exchanger, reservoir, shell and tube heat exchanger, first and second capillary, first to fourth check valve, wherein:
the refrigerant outlet of the compressor is communicated with the first valve port of the four-way valve through a pipeline, the second valve port of the four-way valve is communicated with the refrigerant inlet of the heat recovery brazing plate type heat exchanger through a pipeline, the refrigerant outlet of the heat recovery brazing plate type heat exchanger is communicated with the inlet of the first one-way valve through a pipeline, the outlet of the first one-way valve is communicated with one end of the refrigerant channel in the air-cooled fin type heat exchanger through a pipeline, the other end of the refrigerant channel in the air-cooled fin type heat exchanger is communicated with the inlet of the third one-way valve through a pipeline, the outlet of the third one-way valve is communicated with the inside of the liquid storage device through a pipeline, the inside of the liquid storage device is also communicated with the inlet end of the second capillary tube through a pipeline, the outlet end of the second, the fourth valve port of the four-way valve is communicated with a refrigerant circulating inlet of the compressor through a pipeline, so that a refrigeration working condition and a heat recovery circulating loop are formed;
the pipeline between the outlet of the first one-way valve and the air-cooled finned heat exchanger is also communicated with the inlet of a second one-way valve through a bypass leading-out pipeline, the outlet of the second one-way valve is communicated with a second valve port of the four-way valve and a pipeline between the refrigerant inlets of the heat recovery brazed plate type heat exchangers through a pipeline bypass, the first capillary tube is communicated with a third one-way valve in parallel through a pipeline, the direction of a first capillary tube passage is opposite to that of a third one-way valve passage, the fourth one-way valve is communicated with a second capillary tube in parallel through a pipeline, and the direction of a fourth one-way valve passage is opposite to that of the second capillary tube passage, so that a heating working condition.
The air conditioner with the heat recovery function under the refrigeration working condition is characterized in that: in the refrigeration working condition and the heat recovery circulation loop, refrigerant flowing out of the compressor enters from a first valve port of the four-way valve and then flows out from a second valve port of the four-way valve, then sequentially passes through the heat recovery brazed plate type heat exchanger, the first one-way valve, the air-cooled finned heat exchanger, the third one-way valve, the liquid storage device, the second capillary tube and the shell-and-tube heat exchanger, then enters a third valve port of the four-way valve, and then returns to the compressor from a fourth valve port of the four-way.
The air conditioner with the heat recovery function under the refrigeration working condition is characterized in that: in the heating working condition and the heat recovery circulation loop, refrigerant flowing out of the compressor enters from a first valve port of the four-way valve, flows out of a third valve port of the four-way valve, sequentially passes through the shell-and-tube heat exchanger, the fourth one-way valve, the liquid storage device, the first capillary tube, the air-cooled fin type heat exchanger and the second one-way valve, enters a second valve port of the four-way valve, and returns to the compressor from the fourth valve port of the four-way valve.
The air conditioner with the heat recovery function under the refrigeration working condition is characterized in that: and a gas-liquid separator is communicated and connected between the fourth valve port of the four-way valve and the refrigerant circulating inlet of the compressor.
The air conditioner with the heat recovery function under the refrigeration working condition is characterized in that: and temperature sensors are respectively arranged at a refrigerant inlet and a refrigerant outlet of the heat recovery brazed plate type heat exchanger and are respectively and electrically connected with an external controller.
The air conditioner with the heat recovery function under the refrigeration working condition is characterized in that: temperature sensors are respectively installed at two ends of a refrigerant channel in the shell-and-tube heat exchanger and are respectively electrically connected with an external controller.
The air conditioner with the heat recovery function under the refrigeration working condition is characterized in that: the first to fourth check valves are all one-way normally closed solenoid valves.
The utility model discloses can provide life hot water under the refrigeration operating mode to provide air conditioner hot water when heating, and provide hot water under the refrigeration operating mode and do not influence shell and tube heat exchanger heat transfer volume and unit energy efficiency ratio under the operating mode of heating at all.
Compared with the prior art, the utility model discloses the advantage does:
1. the utility model discloses insert heat recovery brazed plate heat exchanger, check valve between cross valve and finned heat exchanger, control this heat recovery return circuit work through the check valve to realize the trend of refrigerant under two kinds of operating modes of refrigeration and heating.
2. The utility model discloses all be equipped with temperature sensor in heat recovery brazed plate heat exchanger import and export, avoided heat recovery leaving water temperature too high, influence refrigerating system reliability.
3. The utility model discloses low in manufacturing cost, practical value are high.
Drawings
Fig. 1 is a structure view of the air conditioner pipeline of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, an air conditioner with heat recovery function under refrigeration condition comprises a compressor 1, a four-way valve 2, a heat recovery brazed plate heat exchanger 3, an air-cooled fin heat exchanger 5, a liquid reservoir 8, a shell-and-tube heat exchanger 9, a first capillary tube 71, a second capillary tube 72, a first check valve 41, a second check valve 42, a first check valve 61, a second check valve 62, wherein:
the outlet of the refrigerant of the compressor 1 is communicated with the first valve port A of the four-way valve 2 through a pipeline, the second valve port C of the four-way valve 2 is communicated with the refrigerant inlet of the heat recovery brazing sheet type heat exchanger 3 through a pipeline, the refrigerant outlet of the heat recovery brazing sheet type heat exchanger 3 is communicated with the inlet of the first check valve 41 through a pipeline, the outlet of the first check valve 41 is communicated with one end of the refrigerant channel in the air-cooled fin type heat exchanger 5 through a pipeline, the other end of the refrigerant channel in the air-cooled fin type heat exchanger 5 is communicated with the inlet of the third check valve 61 through a pipeline, the outlet of the third check valve 61 is communicated with the inside of the liquid storage device 8 through a pipeline, the inside of the liquid storage device 8 is also communicated with the inlet of the second capillary tube 72 through a pipeline, the outlet end of the second capillary tube 72 is communicated with one end of the refrigerant channel, the fourth valve port S of the four-way valve 2 is communicated with a refrigerant circulating inlet of the compressor 1 through a pipeline, so that a refrigeration working condition and a heat recovery circulating loop are formed;
the pipeline between the outlet of the first check valve 41 and the air-cooled finned heat exchanger 5 is also communicated with the inlet of the second check valve 42 by a bypass leading-out pipeline, the outlet of the second check valve 42 is communicated with the second valve port C of the four-way valve 2 and the pipeline between the refrigerant inlets of the heat recovery brazed plate type heat exchanger 3 by a pipeline bypass, the first capillary tube 71 is communicated with the third check valve 61 in parallel by a pipeline, the direction of the first capillary tube channel 71 is opposite to that of the third check valve 61, the fourth check valve 62 is communicated with the second capillary tube 72 in parallel by a pipeline, and the direction of the fourth check valve 62 is opposite to that of the second capillary tube 72, so that a heating working condition and a heat recovery circulation loop are formed.
In the refrigeration working condition and the heat recovery circulation loop, a refrigerant flowing out of the compressor 1 enters from a first valve port A of the four-way valve 2 and then flows out from a second valve port C of the four-way valve 2, then sequentially passes through the heat recovery brazed plate heat exchanger 3, the first one-way valve 41, the air-cooled finned heat exchanger 5, the third one-way valve 61, the liquid storage device 8, the second capillary tube 72 and the shell-and-tube heat exchanger 9, enters a third valve port E of the four-way valve 2, and then returns to the compressor 1 from a fourth valve port S of the four-way valve 2.
In the heating working condition and the heat recovery circulation loop, the refrigerant flowing out of the compressor 1 enters from the first valve port A of the four-way valve 2, flows out from the third valve port E of the four-way valve 2, sequentially passes through the shell-and-tube heat exchanger 9, the fourth one-way valve 62, the liquid reservoir 8, the first capillary tube 71, the air-cooled fin type heat exchanger 5 and the second one-way valve 42, enters the second valve port C of the four-way valve 2, and then returns to the compressor 1 from the fourth valve port S of the four-way valve 2.
The utility model discloses in, the intercommunication is inserted between four valve ports S of cross valve 2 and the refrigerant circulation entry of compressor 1 has vapour and liquid separator 10.
In the present invention, the first to fourth check valves 41, 42, 61, 62 are one-way normally closed solenoid valves.
In order to accurately control the temperature of water inlet and outlet of the unit, temperature sensors are respectively installed at a refrigerant inlet and a refrigerant outlet of the heat recovery brazed plate heat exchanger 5, and the temperature sensors are respectively and electrically connected with an external controller. Temperature sensors are respectively installed at two ends of a refrigerant channel in the shell-and-tube heat exchanger 9 and are respectively electrically connected with an external controller. The external controller can correspondingly control each one-way valve by acquiring the data of the temperature sensor.
The utility model discloses a concrete theory of operation and process are as follows:
a refrigeration air-conditioning mode: the refrigerant is discharged from the outlet of the compressor 1, enters through a first valve port A of the four-way valve 2, flows out from a second valve port C of the four-way valve 2, passes through the heat recovery brazed plate heat exchanger 3 and the first check valve 41, then flows through the air-cooled finned heat exchanger 5, enters the third check valve 61, then flows through the liquid reservoir 8, enters the second capillary tube 72 for throttling, enters the shell-and-tube heat exchanger 9 after throttling, enters through a third valve port E of the four-way valve 2, flows out from a fourth valve port S of the four-way valve, enters the gas-liquid separator 10 and returns to the compressor 1, and a refrigeration cycle is completed. In this mode, the first check valve 41 is in an open state, the second check valve 42 is in a closed state, the third check valve 61 is in an open state, and the fourth check valve 62 is in a closed state, so that domestic hot water is provided under the unit refrigeration working condition.
Heating and air conditioning mode: the refrigerant is discharged from the outlet of the compressor 1, enters through the first valve port a of the four-way valve 2, flows out from the third valve port E of the four-way valve 2, passes through the shell-and-tube heat exchanger 9 and the fourth one-way valve 62, then flows through the reservoir 8 and the first capillary tube 71, enters the finned heat exchanger 5, then flows through the second one-way valve 42, enters through the second valve port C of the four-way valve 2, flows out from the fourth valve port S of the four-way valve 2, enters the gas-liquid separator 10, returns to the compressor 1, and completes a heating cycle. In this mode, the second check valve 42 is in an open state, the first check valve 41 is in a closed state, the fourth check valve 62 is in an open state, and the third check valve 61 is in a closed state, so that the air conditioner hot water is only provided and the domestic hot water is not provided under the unit heating working condition.
The user can select the air conditioner or the water inlet and outlet temperature mode of heat recovery according to different use requirements and field conditions. If the requirement for the ambient temperature of the air conditioner is high and the requirement for the heat recovery water temperature is not high, the temperature of the heat recovery water outlet can be adjusted to be low, if the requirement for the ambient temperature of the air conditioner is low and the requirement for the heat recovery temperature is high, the temperature of the heat recovery water outlet can be adjusted to be high, so that the multifunctional air conditioner is multipurpose, and has high practical value.
The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.
Claims (7)
1. The utility model provides an air conditioner that has heat recovery function under refrigeration operating mode which characterized in that: including compressor, cross valve to and heat recovery brazed plate heat exchanger, air-cooled finned heat exchanger, reservoir, shell and tube heat exchanger, first and second capillary, first to fourth check valve, wherein:
the refrigerant outlet of the compressor is communicated with the first valve port of the four-way valve through a pipeline, the second valve port of the four-way valve is communicated with the refrigerant inlet of the heat recovery brazing plate type heat exchanger through a pipeline, the refrigerant outlet of the heat recovery brazing plate type heat exchanger is communicated with the inlet of the first one-way valve through a pipeline, the outlet of the first one-way valve is communicated with one end of the refrigerant channel in the air-cooled fin type heat exchanger through a pipeline, the other end of the refrigerant channel in the air-cooled fin type heat exchanger is communicated with the inlet of the third one-way valve through a pipeline, the outlet of the third one-way valve is communicated with the inside of the liquid storage device through a pipeline, the inside of the liquid storage device is also communicated with the inlet end of the second capillary tube through a pipeline, the outlet end of the second, the fourth valve port of the four-way valve is communicated with a refrigerant circulating inlet of the compressor through a pipeline, so that a refrigeration working condition and a heat recovery circulating loop are formed;
the pipeline between the outlet of the first one-way valve and the air-cooled finned heat exchanger is also communicated with the inlet of a second one-way valve through a bypass leading-out pipeline, the outlet of the second one-way valve is communicated with a second valve port of the four-way valve and a pipeline between the refrigerant inlets of the heat recovery brazed plate type heat exchangers through a pipeline bypass, the first capillary tube is communicated with a third one-way valve in parallel through a pipeline, the direction of a first capillary tube passage is opposite to that of a third one-way valve passage, the fourth one-way valve is communicated with a second capillary tube in parallel through a pipeline, and the direction of a fourth one-way valve passage is opposite to that of the second capillary tube passage, so that a heating working condition.
2. An air conditioner with heat recovery function under refrigeration condition according to claim 1, characterized in that: in the refrigeration working condition and the heat recovery circulation loop, refrigerant flowing out of the compressor enters from a first valve port of the four-way valve and then flows out from a second valve port of the four-way valve, then sequentially passes through the heat recovery brazed plate type heat exchanger, the first one-way valve, the air-cooled finned heat exchanger, the third one-way valve, the liquid storage device, the second capillary tube and the shell-and-tube heat exchanger, then enters a third valve port of the four-way valve, and then returns to the compressor from a fourth valve port of the four-way.
3. An air conditioner with heat recovery function under refrigeration condition according to claim 1, characterized in that: in the heating working condition and the heat recovery circulation loop, refrigerant flowing out of the compressor enters from a first valve port of the four-way valve, flows out of a third valve port of the four-way valve, sequentially passes through the shell-and-tube heat exchanger, the fourth one-way valve, the liquid storage device, the first capillary tube, the air-cooled fin type heat exchanger and the second one-way valve, enters a second valve port of the four-way valve, and returns to the compressor from the fourth valve port of the four-way valve.
4. An air conditioner with heat recovery function under refrigeration condition according to claim 1, characterized in that: and a gas-liquid separator is communicated and connected between the fourth valve port of the four-way valve and the refrigerant circulating inlet of the compressor.
5. An air conditioner with heat recovery function under refrigeration condition according to claim 1, characterized in that: and temperature sensors are respectively arranged at a refrigerant inlet and a refrigerant outlet of the heat recovery brazed plate type heat exchanger and are respectively and electrically connected with an external controller.
6. An air conditioner with heat recovery function under refrigeration condition according to claim 1, characterized in that: temperature sensors are respectively installed at two ends of a refrigerant channel in the shell-and-tube heat exchanger and are respectively electrically connected with an external controller.
7. An air conditioner with heat recovery function under refrigeration condition according to claim 1, characterized in that: the first to fourth check valves are all one-way normally closed solenoid valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922304588.0U CN211345669U (en) | 2019-12-20 | 2019-12-20 | Air conditioner with heat recovery function under refrigeration working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922304588.0U CN211345669U (en) | 2019-12-20 | 2019-12-20 | Air conditioner with heat recovery function under refrigeration working condition |
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| Publication Number | Publication Date |
|---|---|
| CN211345669U true CN211345669U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922304588.0U Active CN211345669U (en) | 2019-12-20 | 2019-12-20 | Air conditioner with heat recovery function under refrigeration working condition |
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| CN (1) | CN211345669U (en) |
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- 2019-12-20 CN CN201922304588.0U patent/CN211345669U/en active Active
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