CN218884164U - High-water-temperature heat pump oil-cooling air conditioning system - Google Patents
High-water-temperature heat pump oil-cooling air conditioning system Download PDFInfo
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- CN218884164U CN218884164U CN202223092845.7U CN202223092845U CN218884164U CN 218884164 U CN218884164 U CN 218884164U CN 202223092845 U CN202223092845 U CN 202223092845U CN 218884164 U CN218884164 U CN 218884164U
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Abstract
The utility model discloses a high water temperature heat pump oil-cooling air conditioning system relates to indirect heating equipment technical field, and it includes: the refrigeration system comprises a compressor, an oil-gas separator, a condenser, an expansion valve, a liquid storage device, an evaporator and an oil cooler for cooling refrigeration oil, wherein an exhaust port of the compressor is connected with an inlet of the oil-gas separator, an outlet of the oil-gas separator is connected with a four-way valve, a refrigeration outlet of the four-way valve is connected with an inlet of the condenser, an outlet of the condenser is connected with the liquid storage device, an outlet of the liquid storage device, the expansion valve, the evaporator, the oil cooler and an air suction port of the compressor are sequentially connected through pipelines, and an oil outlet end of the oil-gas separator, the oil cooler and a to-be-lubricated part of the compressor are sequentially connected through pipelines. The system can heat hot water while cooling the refrigeration oil, thereby achieving the purpose of utilizing waste heat and saving energy.
Description
Technical Field
The utility model relates to a indirect heating equipment technical field, more specifically say, relate to a high water temperature heat pump oil cooling air conditioning system.
Background
In the prior art, when an air conditioning unit with a heat pump discharging water at a high temperature heats, the condensing temperature is high due to the fact that the water temperature is high, the temperature of the refrigeration oil of the screw compressor is also high, and the refrigeration oil can be supplied to the screw compressor for lubrication after being cooled. Most of the existing oil cooling technologies adopt a refrigerant cooling method to cool the refrigeration oil, the high-temperature waste heat of the refrigeration oil is not effectively utilized, and the phenomenon of energy waste exists.
In summary, how to heat hot water while cooling refrigeration oil to achieve the purpose of waste heat utilization and energy saving is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a high water temperature heat pump oil cooling air conditioning system, which can heat hot water while cooling refrigerant oil, so as to achieve the purpose of utilizing waste heat and saving energy.
In order to achieve the above object, the present invention provides the following technical solutions:
a high water temperature heat pump oil cooled air conditioning system comprising: the refrigeration system comprises a compressor, an oil-gas separator, a condenser, an expansion valve, a liquid storage device, an evaporator and an oil cooler for cooling refrigeration oil, wherein an exhaust port of the compressor is connected with an inlet of the oil-gas separator, an outlet of the oil-gas separator is connected with a four-way valve, a refrigeration outlet of the four-way valve is connected with an inlet of the condenser, an outlet of the condenser is connected with the liquid storage device, an outlet of the liquid storage device is connected with the expansion valve, the evaporator, the oil cooler and an air suction port of the compressor are sequentially connected through a pipeline, and an oil outlet end of the oil-gas separator, the oil cooler and a to-be-lubricated part of the compressor are sequentially connected through a pipeline.
Preferably, the oil cooler includes a first flow passage for passing refrigerant water and a second flow passage for passing refrigerant oil.
Preferably, the oil cooler and the evaporator are of an integrated structure;
or the oil cooler and the evaporator are two independent structures which are arranged in series.
Preferably, a first communication pipe is arranged between the outlet of the condenser and the inlet of the liquid storage device, and a first one-way valve is arranged on the first communication pipe.
Preferably, a filter is disposed between the outlet of the reservoir and the inlet of the expansion valve.
Preferably, a second communicating pipe is arranged between the outlet of the expansion valve and the inlet of the evaporator, and a second one-way valve is arranged on the second communicating pipe.
Preferably, a third communicating pipe is arranged between the outlet of the evaporator and the inlet of the liquid reservoir, and a third one-way valve is arranged on the third communicating pipe.
Preferably, a fourth communicating pipe is arranged between the outlet of the expansion valve and the inlet of the condenser, and a fourth one-way valve is arranged on the fourth communicating pipe.
Use the utility model provides a during high water temperature heat pump oil cooling air conditioning system, the refrigerant flow direction route under the refrigeration mode is: after entering the oil-gas separator, the high-temperature and high-pressure refrigerant gas discharged by the compressor flows through the four-way valve, the condenser, the liquid storage device, the expansion valve, the evaporator and the air suction end of the compressor in sequence. In the cooling mode, the temperature of the general refrigerating water is relatively low, and the refrigerating water with the low temperature exchanges heat with the high-temperature refrigerating oil in the oil cooler, so that the refrigerating oil can be effectively cooled and then supplied to the compressor.
The refrigerant flow path in the heating mode is: after entering the oil-gas separator, the high-temperature and high-pressure refrigerant gas discharged by the compressor flows through the four-way valve, the evaporator, the liquid storage device, the expansion valve, the condenser and the air suction end of the compressor in sequence. Under the heating mode, because hot water needs to be prepared, high-temperature refrigeration oil and water liquid can be preferentially utilized for heat exchange so as to transfer the heat of the refrigeration oil to the water liquid, on one hand, the hot water is heated, and on the other hand, the temperature of the refrigeration oil can be reduced, so that the waste heat of the refrigeration oil is fully utilized, and the function of preparing the hot water by heating is realized. The two modes can cool the refrigeration oil, and the cooled refrigeration oil is supplied to the position to be lubricated of the compressor for lubrication so as to ensure the reliable and stable operation of the compressor. The system enables the high-temperature refrigeration oil to exchange heat with water by adding a set of oil cooler, and heats hot water while cooling the refrigeration oil, thereby fully utilizing the high-temperature waste heat of the refrigeration oil, and achieving the purpose of waste heat utilization and energy conservation.
To sum up, the utility model provides a high hot water heat pump oil-cooling air conditioning system can heat hot water when cooling refrigeration oil, reaches the energy-conserving purpose of waste heat utilization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high-water temperature heat pump oil-cooling air conditioning system provided by the present invention;
fig. 2 is another schematic diagram of the structure of the high-water-temperature heat pump oil-cooling air conditioning system.
In fig. 1-2:
1 is a compressor, 2 is a condenser, 3 is an evaporator, 4 is a liquid reservoir, 5 is an oil cooler, 6 is an oil-gas separator, 7 is a four-way valve, 8 is an oil return valve, 9 is a third one-way valve, 10 is a first one-way valve, 11 is a fourth one-way valve, 12 is a second one-way valve, 13 is a filter, and 14 is an expansion valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a high water temperature heat pump oil-cooling air conditioning system, can heat hot water when cooling refrigeration oil, reach the energy-conserving purpose of waste heat utilization.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a high-water temperature heat pump oil-cooling air conditioning system provided by the present invention; fig. 2 is another schematic diagram of the structure of the high-water-temperature heat pump oil-cooling air conditioning system.
This concrete embodiment provides a high water temperature heat pump oil cooling air conditioning system, includes: the refrigeration system comprises a compressor 1, an oil-gas separator 6, a condenser 2, an expansion valve 14, a liquid storage device 4, an evaporator 3 and an oil cooler 5 for cooling refrigeration oil, wherein an exhaust port of the compressor 1 is connected with an inlet of the oil-gas separator 6, an outlet of the oil-gas separator 6 is connected with a four-way valve 7, a refrigeration outlet of the four-way valve 7 is connected with an inlet of the condenser 2, an outlet of the condenser 2 is connected with the liquid storage device 4, an outlet of the liquid storage device 4, the expansion valve 14, the evaporator 3, the oil cooler 5 and an air suction port of the compressor 1 are sequentially connected through pipelines, and an oil outlet end of the oil-gas separator 6, the oil cooler 5 and a to-be-lubricated part of the compressor 1 are sequentially connected through pipelines.
It should be noted that an oil return valve 8 may be provided between the oil outlet end of the oil separator 6 and the oil cooler 5, and the flow process of the refrigerant oil may be controlled by controlling the opening and closing of the oil return valve 8. The four-way valve 7 may include ports A1, A2, A3, and A4. In the actual operation process, the shapes, structures, sizes, positions and the like of the compressor 1, the gas-oil separator 6, the condenser 2, the expansion valve 14, the liquid reservoir 4, the evaporator 3 and the oil cooler 5 can be determined according to actual conditions and actual requirements.
Use the utility model provides a during high water temperature heat pump oil cooling air conditioning system, the refrigerant flow direction route under the refrigeration mode is: high-temperature and high-pressure refrigerant gas discharged by the compressor 1 enters the oil-gas separator 6 and then flows through the four-way valve 7, the condenser 2, the liquid storage device 4, the expansion valve 14, the evaporator 3 and the air suction end of the compressor 1 in sequence. In the cooling mode, generally, the temperature of the refrigerant water is relatively low, and at this time, the refrigerant water having a low temperature exchanges heat with the refrigerant oil having a high temperature in the oil cooler 5, so that the refrigerant oil can be effectively cooled and supplied to the compressor 1.
The refrigerant flow path in the heating mode is: high-temperature and high-pressure refrigerant gas discharged by the compressor 1 enters the oil-gas separator 6, and then flows through the four-way valve 7, the evaporator 3, the liquid storage device 4, the expansion valve 14, the condenser 2 and the air suction end of the compressor 1 in sequence. Under the heating mode, because hot water needs to be prepared, high-temperature refrigeration oil and water liquid can be preferentially utilized for heat exchange so as to transfer the heat of the refrigeration oil to the water liquid, on one hand, the hot water is heated, and simultaneously, the temperature of the refrigeration oil can be reduced, thereby fully utilizing the waste heat of the refrigeration oil and realizing the function of heating and preparing the hot water. The two modes can both cool the refrigerant oil, and the cooled refrigerant oil is supplied to the to-be-lubricated part of the compressor 1 for lubrication so as to ensure the reliable and stable operation of the compressor 1. The system enables the high-temperature refrigeration oil to exchange heat with water by adding a set of oil cooler 5, and heats hot water while cooling the refrigeration oil, thereby fully utilizing the high-temperature waste heat of the refrigeration oil and achieving the purpose of waste heat utilization and energy conservation.
To sum up, the utility model provides a high hot water heat pump oil-cooling air conditioning system can heat hot water when cooling refrigeration oil, reaches the energy-conserving purpose of waste heat utilization.
In addition to the above embodiment, it is preferable that the oil cooler 5 includes a first flow passage through which the refrigerant water flows and a second flow passage through which the refrigerant oil flows. That is, the oil cooler 5 is composed of two medium flow passages, the first flow passage is used for conveying refrigerant water, and the second flow passage is used for conveying refrigeration oil. Specifically, the high-temperature refrigerant oil in the oil-gas separator 6 passes through the second flow channel of the oil cooler 5, and then transfers heat to the water flow in the first flow channel, so that the temperature of the refrigerant oil is reduced, the temperature of the water can be increased, and the effect of preparing hot water by using the waste heat of the refrigerant oil is achieved. The cooled refrigerant oil is supplied to the compressor 1 again for lubrication, so as to ensure reliable and stable operation of the compressor 1.
Preferably, the oil cooler 5 and the evaporator 3 are of an integrated structure, and the structure is shown in FIG. 1; or the oil cooler 5 and the evaporator 3 are two independent structures which are arranged in series, and the structure is shown in figure 2.
It should be noted that there are various structural forms of the oil cooler 5, and the oil cooler 5 can be built in the evaporator 3, so that the oil cooler 5 and the evaporator 3 are designed into an integral structure, and share the same housing, etc., thereby achieving the purpose of reducing cost, simplifying structure, and reducing size. The evaporator 3 and the oil cooler 5 may be provided separately, and for example, a water inlet pipe may be connected to an inlet of the oil cooler 5, a water outlet of the oil cooler 5 may be connected to a water inlet of the evaporator 3, and an outlet of the evaporator 3 may be connected to a water outlet pipe.
Preferably, a first communication pipe is provided between the outlet of the condenser 2 and the inlet of the accumulator 4, and a first check valve 10 is provided on the first communication pipe, so that the refrigerant flows into the inlet of the accumulator 4 only from the outlet of the condenser 2.
Preferably, a filter 13 is provided between the outlet of the reservoir 4 and the inlet of the expansion valve 14 to filter the media fluid.
Preferably, a second communication pipe is provided between the outlet of the expansion valve 14 and the inlet of the evaporator 3, and a second check valve 12 is provided on the second communication pipe so that the refrigerant flows into the inlet of the evaporator 3 only from the outlet of the expansion valve 14. Therefore, the flow path of the refrigerant in the cooling mode is: high-temperature and high-pressure refrigerant gas discharged by the compressor 1 enters the oil-gas separator 6 and then flows through the four-way valve 7, the condenser 2, the liquid storage device 4, the expansion valve 14, the evaporator 3 and the air suction end of the compressor 1 in sequence.
In addition to the above-mentioned embodiments, it is preferable that a third communication pipe is provided between the outlet of the evaporator 3 and the inlet of the accumulator 4, and a third check valve 9 is provided on the third communication pipe, so that the refrigerant flows into the inlet of the accumulator 4 only from the outlet of the evaporator 3.
Preferably, a fourth communication pipe is provided between the outlet of the expansion valve 14 and the inlet of the condenser 2, and a fourth check valve 11 is provided on the fourth communication pipe so that the refrigerant flows into the inlet of the condenser 2 only from the outlet of the expansion valve 14. Therefore, the refrigerant flow path in the heating mode is: high-temperature and high-pressure refrigerant gas discharged by the compressor 1 enters the oil-gas separator 6 and then flows through the four-way valve 7, the evaporator 3, the liquid storage device 4, the expansion valve 14, the condenser 2 and the air suction end of the compressor 1 in sequence.
It should be noted that, in this document, the first flow passage and the second flow passage, the first communicating pipe and the second communicating pipe and the third communicating pipe, and the fourth communicating pipe, the first check valve and the second check valve and the third check valve and the fourth check valve are mentioned, where the first, the second, the third, and the fourth are only for distinguishing the difference of the positions, and are not sequentially distinguished.
It should be noted that the directions and positional relationships indicated by "upper" and "lower" in the present application are based on the directions and positional relationships shown in the drawings, and are only for the convenience of simplifying the description and facilitating the understanding, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed in a specific direction and operate, and thus, should not be construed as limiting the present invention.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The utility model provides an arbitrary compound mode of all embodiments all is in this utility model's a protection scope, does not do here and gives unnecessary details.
The above is to the oil-cooled air conditioning system with high water temperature heat pump provided by the utility model. The principles and embodiments of the present invention have been explained herein using specific examples, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A high water temperature heat pump oil-cooled air conditioning system, characterized by comprising: compressor (1), oil and gas separator (6), condenser (2), expansion valve (14), reservoir (4), evaporimeter (3) and be used for cooling oil cooler (5) of refrigeration oil, the gas vent of compressor (1) is connected the entry of oil and gas separator (6), the exit linkage cross valve (7) of oil and gas separator (6), the refrigeration exit linkage of cross valve (7) the entry of condenser (2), the exit linkage of condenser (2) reservoir (4), the export of reservoir (4) expansion valve (14) evaporimeter (3) oil cooler (5) and the induction port of compressor (1) connects gradually through the pipeline, the oil outlet of oil and gas separator (6) oil cooler (5) and the lubricated department of compressor (1) connects gradually through the pipeline.
2. A high water temperature heat pump oil-cooled air conditioning system as claimed in claim 1, characterized in that the oil cooler (5) comprises a first flow passage for circulating refrigerant water and a second flow passage for circulating refrigerant oil.
3. A high water temperature heat pump oil-cooled air conditioning system as claimed in claim 1, characterized in that the oil cooler (5) is of an integrated construction with the evaporator (3);
or the oil cooler (5) and the evaporator (3) are of two independent structures which are arranged in series.
4. A high water temperature heat pump oil cooling air conditioning system according to any of claims 1 to 3, characterized in that a first communication pipe is provided between the outlet of the condenser (2) and the inlet of the accumulator (4), and a first check valve (10) is provided on the first communication pipe.
5. A high water temperature heat pump oil-cooled air conditioning system as claimed in claim 4, characterized in that a filter (13) is provided between the outlet of the reservoir (4) and the inlet of the expansion valve (14).
6. A high water temperature heat pump oil cooling air conditioning system according to claim 5, characterized in that a second communicating pipe is provided between the outlet of the expansion valve (14) and the inlet of the evaporator (3), and a second check valve (12) is provided on the second communicating pipe.
7. A high water temperature heat pump oil-cooled air conditioning system as claimed in claim 4, characterized in that a third communicating pipe is provided between the outlet of the evaporator (3) and the inlet of the accumulator (4), and a third check valve (9) is provided on the third communicating pipe.
8. A high water temperature heat pump oil cooling air conditioning system according to claim 7, characterized in that a fourth communicating pipe is provided between the outlet of the expansion valve (14) and the inlet of the condenser (2), and a fourth check valve (11) is provided on the fourth communicating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223092845.7U CN218884164U (en) | 2022-11-17 | 2022-11-17 | High-water-temperature heat pump oil-cooling air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223092845.7U CN218884164U (en) | 2022-11-17 | 2022-11-17 | High-water-temperature heat pump oil-cooling air conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN218884164U true CN218884164U (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223092845.7U Active CN218884164U (en) | 2022-11-17 | 2022-11-17 | High-water-temperature heat pump oil-cooling air conditioning system |
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| CN (1) | CN218884164U (en) |
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- 2022-11-17 CN CN202223092845.7U patent/CN218884164U/en active Active
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