CN210602318U - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN210602318U CN210602318U CN201921087360.4U CN201921087360U CN210602318U CN 210602318 U CN210602318 U CN 210602318U CN 201921087360 U CN201921087360 U CN 201921087360U CN 210602318 U CN210602318 U CN 210602318U
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Abstract
The utility model relates to an air conditioning equipment field discloses a heat transfer device, when having solved current air source heat pump and defrosting under the heating state, the problem that system hot water temperature can descend, indoor heating stops and indoor temperature can descend. The utility model comprises a compressor, a four-way valve, an indoor heat exchanger, a throttling element, an outdoor heat exchanger and an adjusting heat exchanger which are communicated in sequence; the heat exchange part of the adjusting heat exchanger is contacted with the heat exchange part of the outdoor heat exchanger. The utility model can defrost the outdoor heat exchanger by adjusting the heat release function of the heat exchanger under the condition of keeping the indoor heat exchanger to continue heating in winter; the heat exchanger can be adjusted to improve the heat exchange effect of the outdoor heat exchanger, so that the return air temperature is improved, and the condition of liquid suction or liquid impact of the compressor can be avoided; in addition, the exhaust pressure and the exhaust temperature of the compressor can be reduced by utilizing the adjusting heat exchanger, so that the service life of the compressor is effectively prolonged.
Description
Technical Field
The utility model relates to an air conditioning equipment field, especially a heat transfer device.
Background
The conventional defrosting method is that a four-way valve is used for switching a defrosting mode, during defrosting, the heating water temperature is reduced, indoor heating is stopped, the indoor temperature is reduced, and the indoor heating requirement cannot be met; the heat pump runs for a long time in winter, the heat absorption of the evaporator is incomplete, and the return air temperature is too low, so that the liquid absorption of the compressor is reduced, and the service life of the compressor is shortened; under the conditions that the outdoor environment temperature of the heat pump is high, the temperature of the heating water is high or the heat exchange effect of the condenser is poor, the exhaust pressure and the exhaust temperature of the compressor are high, and the service life of the compressor can be shortened if the compressor is operated for a long time.
Disclosure of Invention
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a heat transfer device, can defrost for outdoor heat exchanger under the condition of heating simultaneously.
According to the utility model discloses, a heat exchange device is provided, which comprises a compressor, a four-way valve, an indoor heat exchanger, a throttling element, an outdoor heat exchanger and an adjusting heat exchanger;
the exhaust port of the compressor is communicated with the first interface of the four-way valve, and the suction port of the compressor is communicated with the second interface of the four-way valve;
a first port of the indoor heat exchanger is communicated with a third interface of the four-way valve;
a third port of the outdoor heat exchanger is communicated with a fourth interface of the four-way valve;
the throttling element is connected between the second port of the indoor heat exchanger and the fourth port of the outdoor heat exchanger in series;
the heat exchange part of the adjusting heat exchanger exchanges heat with the heat exchange part of the outdoor heat exchanger, the fifth port of the adjusting heat exchanger is communicated with the exhaust port of the compressor through a valve, and the sixth port of the adjusting heat exchanger is communicated with the second port of the indoor heat exchanger.
Has the advantages that: the heat exchange part of the adjusting heat exchanger exchanges with the heat exchange part of the outdoor heat exchanger, and the heat exchange part is matched with the adjustment of a valve, so that in winter, the heat release effect of the adjusting heat exchanger can be utilized to defrost the outdoor heat exchanger under the condition of keeping the indoor heat exchanger to heat continuously; when the outdoor heat exchanger absorbs heat incompletely and the return air temperature is too low, the heat exchange effect can be improved for the outdoor heat exchanger by utilizing the adjusting heat exchanger, so that the return air temperature is improved, and the condition of liquid absorption or liquid impact of the compressor can be avoided; when the exhaust temperature and the exhaust pressure of the compressor are too high, the valve can be opened, so that part of refrigerant exhausted by the compressor exchanges heat through the adjusting heat exchanger, the exhaust pressure and the exhaust temperature of the compressor can be reduced, and the practical service life of the compressor is effectively prolonged.
Furthermore, the heat exchange part of the adjusting heat exchanger and the heat exchange part of the outdoor heat exchanger are arranged in a staggered mode. By means of the staggered arrangement mode, the heat exchange area between the heat exchange part of the adjusting heat exchanger and the heat exchange part of the outdoor heat exchanger can be further increased, and the heat exchange effect can be effectively improved.
Further, the valve is an electromagnetic valve. The electromagnetic valve can realize the function of remote switch, or can realize the on-off state of the automatic control electromagnetic valve by matching with the controller.
Further, the indoor heat exchanger is a condenser.
Further, the indoor heat exchanger is of a water-cooled heat exchange structure. The water cooling type is adopted, so that the heat transfer efficiency can be improved.
Further, the outdoor heat exchanger is an evaporator.
Further, the outdoor heat exchanger is of a fin type heat exchange structure. And the fin type heat exchanger can improve the heat exchange efficiency with air.
Further, the outdoor heat exchanger is provided with a fan. The fan is adopted, so that the heat exchange efficiency of the outdoor heat exchanger and air can be further improved.
Further, the conditioning heat exchanger is a parallel flow heat exchanger. The parallel flow heat exchanger has the characteristic of high heat exchange efficiency, and can improve the heat exchange effect with the outdoor heat exchanger.
Further, the throttling element is an expansion valve. The expansion valve is used for throttling and controlling the flow of the refrigerant.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;
fig. 2 is a schematic view of the installation of the outdoor heat exchanger and the conditioning heat exchanger according to a preferred embodiment of the present invention;
fig. 3 is a schematic structural view of an outdoor heat exchanger according to a preferred embodiment of the present invention;
fig. 4 is a schematic structural diagram of a conditioning heat exchanger according to a preferred embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, in a preferred embodiment, a heat exchange apparatus includes a compressor 10, a four-way valve 20, an indoor heat exchanger 30, a throttling element 40, an outdoor heat exchanger 50, and a regulation heat exchanger 60;
the exhaust port of the compressor 10 is communicated with the first interface of the four-way valve 20, and the suction port of the compressor 10 is communicated with the second interface of the four-way valve 20;
a first port of the indoor heat exchanger 30 is communicated with a third port of the four-way valve 20;
the third port 501 of the outdoor heat exchanger 50 is communicated with the fourth port of the four-way valve 20;
the throttling element 40 is connected in series between the second port of the indoor heat exchanger 30 and the fourth port 502 of the outdoor heat exchanger 50;
the heat exchanging part of the adjusting heat exchanger 60 exchanges heat with the heat exchanging part of the outdoor heat exchanger 50, the fifth port 601 of the adjusting heat exchanger 60 is communicated with the exhaust port of the compressor 10 through the valve 70, and the sixth port 602 of the adjusting heat exchanger 60 is communicated with the second port of the indoor heat exchanger 30. Specifically, in this embodiment, the communication between each component is realized by using a pipeline.
Specifically, in the present embodiment, the valve 70 is normally in a closed state, and in a heating state, the first port of the four-way valve 20 is communicated with the third port, and the second port of the four-way valve 20 is communicated with the fourth port; that is, the refrigerant discharged from the compressor 10 passes through the four-way valve 20, the indoor heat exchanger 30, the throttling element 40, and the outdoor heat exchanger 50 in sequence, and finally returns to the compressor 10. In winter, if the embodiment works in a heating state, the outdoor heat exchanger 50 may be frosted, at this time, the valve 70 may be directly opened without switching the state of the four-way valve 20, so that a part of the high-temperature refrigerant in the exhaust port of the compressor 10 enters the adjusting heat exchanger 60, and since the heat exchanging portion of the adjusting heat exchanger 60 exchanges with the heat exchanging portion of the outdoor heat exchanger 50, the heat of the high-temperature refrigerant is dissipated to the heat exchanging portion of the outdoor heat exchanger 50 through the adjusting heat exchanger 60, the temperature of the heat exchanging portion of the outdoor heat exchanger 50 rises, and the defrosting effect may be achieved; the refrigerant of a high temperature is partially merged with the refrigerant of the second port of the indoor heat exchanger 30 after passing through the conditioning heat exchanger 60, passes through the throttling element 40 and the four-way valve 20 in sequence, and then returns to the inside of the compressor 10. Therefore, the present embodiment can achieve the effect of defrosting the outdoor heat exchanger 50 while maintaining the indoor temperature and satisfying the indoor heating demand.
In the embodiment, under the low-temperature environment in winter, the return air superheat degree of the outdoor heat exchanger 50 can be detected in real time by using the temperature sensor, when the return air superheat degree of the outdoor heat exchanger 50 is lower than a set requirement for a long time, the valve 70 is opened, a part of refrigerant at the exhaust port of the compressor 10 enters the adjusting heat exchanger 60, so that the heat exchange of the outdoor evaporator is improved by using the heat exchange of the adjusting heat exchanger 60, the return air temperature of the outdoor heat exchanger 50 can be improved, the conditions of liquid absorption and liquid impact of the compressor 10 can be avoided, and the service life of the compressor 10 is effectively prolonged. The technical means for detecting the degree of superheat of the returned air is conventional in the art and will not be described in detail.
In this embodiment, under the condition that the outdoor environment temperature is high or the heat exchange effect of the indoor heat exchanger 30 is poor, the discharge temperature and the discharge pressure of the compressor 10 are detected, when the detected discharge temperature and the detected discharge pressure are higher than the set values, the valve 70 is opened, and a part of the refrigerant at the discharge port of the compressor 10 enters the regulating heat exchanger 60 for heat exchange, so that the discharge pressure and the discharge temperature at the discharge port of the compressor 10 can be reduced, and the service life of the compressor 10 is prolonged. Specifically, the discharge temperature and the discharge pressure of the compressor 10 can be detected by a temperature sensor and a pressure sensor, respectively, and the technical means for detecting the discharge temperature and the discharge pressure is not described in detail since it is conventional in the art.
Preferably, referring to fig. 2 to 4, the heat exchanging part of the conditioning heat exchanger 60 is staggered from the heat exchanging part of the outdoor heat exchanger 50. By the staggered arrangement, the heat exchange area between the heat exchange portion of the adjusting heat exchanger 60 and the heat exchange portion of the outdoor heat exchanger 50 can be preferably increased, and the heat exchange effect can be effectively improved.
Preferably, the valve 70 is a solenoid valve. The electromagnetic valve can realize the function of remote switch, or can realize the on-off state of the automatic control electromagnetic valve by matching with the controller.
Preferably, the indoor heat exchanger 30 is a condenser 301.
Preferably, the indoor heat exchanger 30 is a water-cooled heat exchange structure. The water cooling type is adopted, so that the heat transfer efficiency can be improved. Specifically, the indoor heat exchanger 30 adopts a water-cooled condenser 301, which is further provided with a water tank 302, and the condenser 301 is arranged in the water tank 302; the inlet end of the condenser 301 serves as a first port of the indoor heat exchanger 30 to communicate with the third port of the four-way valve 20, and the outlet end of the condenser 301 serves as a second port of the indoor heat exchanger 30 to communicate with the throttling element 40. A water pump and a heating water pipe are connected in series between the heating water return port 304 and the heating water outlet 303 of the water tank 302, and the heating water pipe is laid indoors to heat indoors. When the temperature of the heating water in the water tank 302 is too high, the discharge temperature and the discharge pressure of the discharge port of the compressor 10 can be detected, the valve 70 is opened, and a part of the refrigerant at the discharge port of the compressor 10 enters the regulating heat exchanger 60 for heat exchange, so that the discharge pressure and the discharge temperature of the discharge port of the compressor 10 can be reduced, and the service life of the compressor 10 is prolonged.
Preferably, the outdoor heat exchanger 50 is an evaporator.
Preferably, the outdoor heat exchanger 50 is a fin type heat exchange structure. And the fin type heat exchanger can improve the heat exchange efficiency with air. In this embodiment, referring to fig. 1 to 3, the outdoor heat exchanger employs a fin-type evaporator, the fin-type evaporator has multiple sections of heat exchanging portions, each section of heat exchanging portion of the fin-type evaporator is provided with a liquid separating inlet and serves as a fourth port 502 of the outdoor heat exchanger 50, that is, the outdoor heat exchanger 50 is provided with multiple fourth ports 502 and is simultaneously communicated with the outlet of the throttling element 40; the gas collection outlet of each section of heat exchange part of the finned evaporator is communicated with the fourth interface of the four-way valve 20 as the third interface 501 of the outdoor heat exchanger 50. The fin evaporator with a plurality of liquid separation inlets can effectively improve the heat exchange efficiency of the outdoor evaporator, thereby improving the heating effect.
Preferably, the outdoor heat exchanger 50 is provided with a fan 80. The fan 80 is adopted to further improve the heat exchange efficiency between the outdoor heat exchanger 50 and the air.
Preferably, referring to fig. 2 and 4, the conditioning heat exchanger 60 is a parallel flow heat exchanger. The parallel flow heat exchanger has a characteristic of high heat exchange efficiency, and can improve the heat exchange effect with the outdoor heat exchanger 50.
Preferably, the throttling element 40 is an expansion valve. The expansion valve is used for throttling and controlling the flow of the refrigerant.
The above is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and the technical effects of the present invention should be included in the protection scope of the present invention as long as the technical effects are achieved by any of the same or similar means.
Claims (10)
1. A heat exchange device is characterized in that: the system comprises a compressor, a four-way valve, an indoor heat exchanger, a throttling element, an outdoor heat exchanger and an adjusting heat exchanger;
the exhaust port of the compressor is communicated with the first interface of the four-way valve, and the suction port of the compressor is communicated with the second interface of the four-way valve;
a first port of the indoor heat exchanger is communicated with a third interface of the four-way valve;
a third port of the outdoor heat exchanger is communicated with a fourth interface of the four-way valve;
the throttling element is connected between the second port of the indoor heat exchanger and the fourth port of the outdoor heat exchanger in series;
the heat exchange part of the adjusting heat exchanger exchanges heat with the heat exchange part of the outdoor heat exchanger, the fifth port of the adjusting heat exchanger is communicated with the exhaust port of the compressor through a valve, and the sixth port of the adjusting heat exchanger is communicated with the second port of the indoor heat exchanger.
2. The heat exchange device of claim 1, wherein: the heat exchange parts of the adjusting heat exchanger and the heat exchange parts of the outdoor heat exchanger are arranged in a staggered mode.
3. The heat exchange device of claim 1, wherein: the valve is an electromagnetic valve.
4. The heat exchange device of claim 1, wherein: the indoor heat exchanger is a condenser.
5. The heat exchange device of claim 1 or 4, wherein: the indoor heat exchanger is of a water-cooled heat exchange structure.
6. The heat exchange device of claim 1, wherein: the outdoor heat exchanger is an evaporator.
7. The heat exchange device of claim 1 or 6, wherein: the outdoor heat exchanger adopts a fin type heat exchange structure.
8. The heat exchange device of claim 1, wherein: the outdoor heat exchanger is provided with a fan.
9. The heat exchange device of claim 1, wherein: the conditioning heat exchanger is a parallel flow heat exchanger.
10. The heat exchange device of claim 1, wherein: the throttling element is an expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087360.4U CN210602318U (en) | 2019-07-12 | 2019-07-12 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087360.4U CN210602318U (en) | 2019-07-12 | 2019-07-12 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210602318U true CN210602318U (en) | 2020-05-22 |
Family
ID=70698257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921087360.4U Active CN210602318U (en) | 2019-07-12 | 2019-07-12 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210602318U (en) |
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2019
- 2019-07-12 CN CN201921087360.4U patent/CN210602318U/en active Active
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