CN210123210U - Air conditioning system - Google Patents

Air conditioning system Download PDF

Info

Publication number
CN210123210U
CN210123210U CN201920944763.XU CN201920944763U CN210123210U CN 210123210 U CN210123210 U CN 210123210U CN 201920944763 U CN201920944763 U CN 201920944763U CN 210123210 U CN210123210 U CN 210123210U
Authority
CN
China
Prior art keywords
air
port
compressor
conditioning system
valve
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.)
Active
Application number
CN201920944763.XU
Other languages
Chinese (zh)
Inventor
张�杰
潘祖栋
赵龙
胡宏巨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dunan Electro Mechanical Technology Co Ltd
Original Assignee
Zhejiang Dunan Electro Mechanical Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Dunan Electro Mechanical Technology Co Ltd filed Critical Zhejiang Dunan Electro Mechanical Technology Co Ltd
Priority to CN201920944763.XU priority Critical patent/CN210123210U/en
Application granted granted Critical
Publication of CN210123210U publication Critical patent/CN210123210U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model provides an air conditioning system, this air conditioning system includes: a compressor having an air suction port, an air discharge port, and an air supplement port; the auxiliary line, the one end and the tonifying qi mouth intercommunication of auxiliary line, the other end and the induction port intercommunication of auxiliary line, the compressor can promote the superheat degree of compressor induction port through auxiliary line. Through the technical scheme that this application provided, can solve the problem that there is the liquid risk of breathing in the compressor among the prior art.

Description

Air conditioning system
Technical Field
The utility model relates to an air conditioning technology field particularly, relates to an air conditioning system.
Background
At present, the air-cooled heat pump unit adopting low-pressure refrigerant can reduce the pressure drop of an air suction pipeline by adopting a mode of eliminating a gas-liquid separator so as to effectively improve the superheat degree of an air suction port of a compressor and further improve the performance of the air-cooled heat pump unit. However, in the above manner, the refrigerant entering the compressor from the suction port is very likely to have liquid refrigerant, and particularly when the defrosting function is switched, the risk of suction and liquid return of the compressor is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air conditioning system to there is the problem of the liquid risk of breathing in the compressor of solving among the prior art.
The utility model provides an air conditioning system, air conditioning system includes: a compressor having an air suction port, an air discharge port, and an air supplement port; the auxiliary line, the one end and the tonifying qi mouth intercommunication of auxiliary line, the other end and the induction port intercommunication of auxiliary line, the compressor can promote the superheat degree of compressor induction port through auxiliary line.
Further, the air conditioning system also comprises an economizer and a circulating pipeline, wherein the circulating pipeline is respectively communicated with the air suction port and the air exhaust port, the economizer is arranged on the circulating pipeline, the economizer is provided with a first inlet and a first outlet, the first inlet is communicated with the air exhaust port, and the first outlet is communicated with the air suction port.
Furthermore, the air conditioning system also comprises a middle air supplement pipeline, one end of the middle air supplement pipeline is communicated with the first outlet of the economizer, the other end of the middle air supplement pipeline is communicated with the air supplement port, and the refrigerant flowing out of the first outlet is subjected to heat exchange by the economizer and then is supplemented into the air supplement port by the middle air supplement pipeline.
Furthermore, the middle gas supplementing pipeline is provided with a first section and a second section which are communicated with each other, the economizer further comprises a second inlet and a second outlet, one end of the first section is communicated with the first outlet, the other end of the first section is communicated with the second inlet, one end of the second section is communicated with the second outlet, and the other end of the second section is communicated with the auxiliary pipeline.
Furthermore, a first valve is arranged on the auxiliary pipeline and is arranged between the air suction port and the joint of the middle air supplement pipeline and the auxiliary pipeline.
Furthermore, a second valve and a throttle valve are arranged on the first section, and a one-way valve is arranged on the second section.
Further, the air conditioning system further comprises a controller, a pressure sensor and a temperature sensor, wherein the pressure sensor and the temperature sensor are electrically connected with the controller, the pressure sensor is arranged at the air suction port, and the temperature sensor is arranged at the air exhaust port.
Furthermore, the air conditioning system also comprises a middle liquid spraying pipeline, one end of the middle liquid spraying pipeline is communicated with the first outlet, and the other end of the middle liquid spraying pipeline is communicated with a middle liquid spraying opening of the compressor.
Furthermore, the air conditioning system also comprises a tail spraying pipeline, one end of the tail spraying pipeline is communicated with the first outlet, and the other end of the tail spraying pipeline is communicated with the air suction port.
Furthermore, a middle liquid spraying valve is arranged on the middle liquid spraying pipeline, a first throttling assembly is arranged between the middle liquid spraying pipeline and the compressor, a tail liquid spraying valve is arranged on the tail liquid spraying pipeline, and a second throttling assembly is arranged between the tail liquid spraying pipeline and the compressor.
Use the technical scheme of the utility model, this air conditioning system include compressor and auxiliary line, and the compressor has induction port, gas vent and tonifying qi mouth. Through the one end and the tonifying qi mouth intercommunication with auxiliary line, with auxiliary line's the other end and induction port intercommunication, can pass through auxiliary line with the overheated refrigerant in the compressor and fill to the induction port to can utilize overheated refrigerant to promote the degree of superheat of compressor induction port department, and then make the biphase refrigerant of gas-liquid can evaporate liquid refrigerant wherein fast before the compression chamber that gets into the compressor, avoid the compressor to appear breathing in the problem of liquid that returns.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic diagram of an air conditioning system provided by the present invention;
FIG. 2 is a schematic flow diagram illustrating the auxiliary line of FIG. 1 at increasing exhaust port superheat;
fig. 3 shows a schematic flow diagram of the auxiliary line and the intermediate air supply line of fig. 1 at increased suction pressure.
Wherein the figures include the following reference numerals:
10. a compressor; 11. an air suction port; 12. an exhaust port; 13. an air supplement port; 14. a middle liquid spraying port;
20. an auxiliary line; 21. a first valve;
30. an economizer; 31. a first inlet; 32. a first outlet; 33. a second inlet; 34. a second outlet;
40. a circulation line;
50. a middle air supplement pipeline; 51. a first stage; 52. a second stage; 53. a second valve; 54. a throttle valve; 55. a one-way valve;
60. a pressure sensor; 70. a temperature sensor;
80. a middle liquid spray pipeline; 81. a middle liquid spray valve; 90. a tail spray pipe; 91. a tail spray valve;
100. an air-side heat exchanger; 110. a water side heat exchanger; 120. a four-way valve; 130. a reservoir; 140. and (3) a filter.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides an air conditioning system including a compressor 10 and an auxiliary line 20. The compressor 10 has an air inlet 11, an air outlet 12, and an air supplement port 13, wherein the air inlet 11 is communicated with an air suction cavity of the compressor, and the air supplement port 13 is communicated with a compression cavity of the compressor. Specifically, one end of the auxiliary pipeline 20 is communicated with the air supplement port 13, and the other end of the auxiliary pipeline 20 is communicated with the air suction port 11, so that the superheated refrigerant in the compression cavity can be reversely charged to the air suction port by using the auxiliary pipeline 20, and the superheat degree of the air suction port 11 of the compressor 10 can be improved. By adopting the structure, before the gas-liquid two-phase refrigerant enters the compression cavity, the liquid refrigerant can be quickly evaporated, so that the problem of air suction and liquid return of the compressor can be avoided.
The air conditioning system provided by the embodiment is applied, one end of the auxiliary pipeline 20 is communicated with the air supplementing port 13, the other end of the auxiliary pipeline 20 is communicated with the air suction port 11, the overheated refrigerant in the compression cavity can be reversely filled to the air suction port 11, so that the superheat degree of the air suction port 11 is improved, the liquid refrigerant in the gas-liquid two-phase refrigerant can be quickly evaporated, and the problem of air suction and liquid return of the compressor can be avoided. Moreover, by adopting the structure, the superheat degree at the air suction port 11 is improved, so that the liquid of the compressor can be prevented from being compressed in the defrosting switching process, and the safe operation of the compressor can be ensured.
In this embodiment, the air conditioning system further includes an economizer 30 and a recirculation line 40. Specifically, the circulation line 40 communicates with the suction port 11 and the discharge port 12, respectively, to compress the refrigerant in the circulation line 40 by the compressor 10. The economizer 30 is disposed on the circulation line 40, the economizer 30 has a first inlet 31 and a first outlet 32, the first inlet 31 communicates with the exhaust port 12, and the first outlet 32 communicates with the suction port 11, so that the refrigerant in the circulation line 40 can exchange heat with the economizer 30.
As shown in fig. 3, the air conditioning system further includes an intermediate air supplement pipeline 50, one end of the intermediate air supplement pipeline 50 is communicated with the first outlet 32 of the economizer 30, and the other end of the intermediate air supplement pipeline 50 is communicated with the air supplement port 13. The refrigerant flowing out of the first outlet 32 exchanges heat with the economizer 30, so that the liquid refrigerant flowing out of the first outlet 32 is converted into a gaseous refrigerant, and the gaseous refrigerant can be fed into the compression cavity of the compressor through the air feeding port 13, thereby improving the performance of the compressor.
In this embodiment, the intermediate make-up gas line 50 has a first segment 51 and a second segment 52 in communication with each other, and the economizer 30 further includes a second inlet 33 and a second outlet 34. Specifically, one end of the first section 51 communicates with the first outlet 32, and the other end of the first section 51 communicates with the second inlet 33, so that the economizer 30 can be used to perform a heat exchange process on the liquid refrigerant in the first section 51 to convert the liquid refrigerant into a gaseous refrigerant. By connecting one end of the second segment 52 to the second outlet 34 and connecting the other end of the second segment 52 to the auxiliary line 20, the intermediate gas supply line 50 can be connected to the gas supply port 13 via the auxiliary line 20, and the refrigerant converted into a gaseous state in the second segment 52 can be supplied to the compression chamber of the compressor. The intermediate air supply line 50 is connected to the air supply port 13 through the auxiliary line 20, and when the suction pressure of the compressor 10 is increased, the air supply port 11 and the air supply port 13 can be used to supply air to the compressor at the same time, thereby improving the air supply and pressurization effects. Wherein, with middle gas supply pipeline 50 through auxiliary line 20 with the tonifying qi mouth 13 intercommunication, can make middle gas supply pipeline 50 and auxiliary line 20 share one section pipeline, so can simplify the structure of device, promote device's integrated level.
Wherein the auxiliary line 20 is provided with a first valve 21, and the first valve 21 is arranged between the suction port 11 and the connection between the intermediate air supply line 50 and the auxiliary line 20. With the above configuration, the opening or closing of the first valve 21 can be controlled in accordance with the suction pressure at the suction port 11. Specifically, when the first valve 21 is in an open state, the intermediate air supplement pipeline 50 can supplement air to the compressor through the auxiliary pipeline 20 by using the air suction port 11 and the air supplement port 13 at the same time; when the first valve 21 is in the closed state, the intermediate air supply line 50 can supply air to the compressor only through the air supply port 13. In the present embodiment, the first valve 21 is a solenoid valve.
Specifically, the first section 51 is provided with a second valve 53 and a throttle 54, and the second section 52 is provided with a check valve 55. By providing a second valve 53 on the first section 51, communication of the intermediate bleed line 50 with the first outlet 32 of the economizer 30 can be controlled. When the superheat degree of the suction port 11 of the compressor 10 needs to be increased by using the auxiliary line 20, the second valve 53 may be set to be in a closed state, and the second section 52 is provided with the check valve 55, so that the refrigerant in the auxiliary line 20 can be prevented from flowing into the intermediate air supplement line 50; when it is desired to replenish the compressor 10 with the intermediate air replenishment line 50, the second valve 53 may be set to an open state. By providing a throttle 54 in the first section 51, the flow of refrigerant from the intermediate make-up line 50 into the second inlet 33 of the economizer 30 can be regulated. In the present embodiment, the second valve 53 is a solenoid valve.
In the present embodiment, the air conditioning system further includes a controller, a pressure sensor 60, and a temperature sensor 70, and both the pressure sensor 60 and the temperature sensor 70 are electrically connected to the controller. Specifically, the pressure sensor 60 is provided at the inlet port 11, the suction pressure at the inlet port 11 can be detected by the pressure sensor 60, and the exhaust superheat at the exhaust port 12 can be detected by the temperature sensor 70 provided at the exhaust port 12. With the above-described structure, the controller can control the opening or closing of the first and second valves 21 and 53 according to the data detected by the pressure sensor 60 and the temperature sensor 70.
To reduce the discharge air temperature at the discharge outlet 12, the air conditioning system further includes a middle spray line 80 and a tail spray line 90.
Specifically, one end of the intermediate liquid injection pipeline 80 is communicated with the first outlet 32, and the other end of the intermediate liquid injection pipeline 80 is communicated with the intermediate liquid injection port 14 of the compressor 10, so that the refrigerant subjected to heat exchange by the economizer 30 can be supplemented into the compression cavity of the compressor by using the intermediate liquid injection pipeline 80.
Specifically, one end of the tail spraying pipe 90 is communicated with the first outlet 32, and the other end of the tail spraying pipe 90 is communicated with the suction port 11, so that the refrigerant subjected to heat exchange by the economizer 30 can be supplemented into the suction chamber of the compressor by using the tail spraying pipe 90.
Since the refrigerants in the intermediate liquid-spraying pipeline 80 and the tail liquid-spraying pipeline 90 are both liquid refrigerants, when the liquid refrigerants enter the compressor, the liquid refrigerants are converted into gaseous refrigerants, so that the heat in the compressor can be absorbed, and the exhaust temperature at the exhaust port 12 can be reduced.
Wherein, be provided with middle hydrojet valve 81 on the middle hydrojet pipeline 80, be provided with afterbody hydrojet valve 91 on the afterbody hydrojet pipeline 90, can utilize middle hydrojet valve 81 and afterbody hydrojet valve 91 to control the connected state of middle hydrojet pipeline 80 and afterbody hydrojet pipeline 90, and middle hydrojet valve 81 and afterbody hydrojet valve 91 are the solenoid valve.
And, a first throttling assembly is provided between the middle spray pipe 80 and the compressor 10, a second throttling assembly is provided between the tail spray pipe 90 and the compressor 10, and the flow of the internal refrigerant entering the compressor from the middle spray pipe 80 and the tail spray pipe 90 can be controlled by providing the first throttling assembly and the second throttling assembly. Wherein, the first throttling component and the second throttling component can be capillary tubes or throttling rings. In this embodiment, the first throttling component is a throttling ring, and the throttling ring is disposed in the middle liquid jet 14 of the compressor, and the second throttling component is a capillary tube, and the capillary tube is disposed at the end of the tail liquid jet pipeline 90.
In the present embodiment, the air conditioning system further includes an air-side heat exchanger 100, a water-side heat exchanger 110, a four-way valve 120, an accumulator 130, and a filter 140. The air-side heat exchanger 100, the water-side heat exchanger 110, the four-way valve 120, the accumulator 130, and the filter 140 are all disposed on the circulation line 40, and an electronic expansion valve is disposed between the economizer 30 and the water-side heat exchanger 110.
When the air conditioning system is in the cooling mode, the circulation direction of the refrigerant in the circulation line 40 is: compressor 10 discharge → four-way valve 120 → air side heat exchanger 100 → accumulator 130 → filter 140 → economizer 30 → electronic expansion valve → water side heat exchanger 110 → four-way valve 120 → compressor 10 suction; when the air conditioning system is in the heating mode, the circulation direction of the refrigerant in the circulation line 40 is: compressor 10 discharge → four-way valve 120 → water side heat exchanger 110 → accumulator 130 → filter 140 → economizer 30 → electronic expansion valve → air side heat exchanger 100 → four-way valve 120 → compressor 10 suction.
In the present embodiment, the air conditioning system includes two air-side heat exchangers 100, the two air-side heat exchangers 100 are independently disposed, and each air-side heat exchanger 100 can form an independent refrigerant cycle with other components on the circulation line 40. By arranging the two air-side heat exchangers 100, when the air conditioning system is in a heating mode and needs defrosting, one of the air-side heat exchangers 100 can be kept in the heating mode, and the other air-side heat exchanger 100 is switched to the defrosting mode, so that continuous heating of the air conditioning system can be kept, and large change of the temperature in a room can be avoided.
In order to facilitate understanding of the present solution, the following explanation is made in conjunction with the control method of the air conditioning system provided in the present embodiment:
first, the control method of the auxiliary line 20 when the air conditioning system enters the defrost mode or exits the defrost mode.
In the 180 seconds after the air conditioning system enters the defrosting mode or exits the defrosting mode, the second valve 53 on the intermediate air supplement pipeline 50 is in a closed state, and the check valve 55 is arranged on the second section 52, so that the refrigerant in the auxiliary pipeline 20 does not enter the intermediate air supplement pipeline 50.
(1) The actual degree of superheat of exhaust gas at the exhaust port 12 is detected by the temperature sensor 70, and the actual degree of superheat of exhaust gas is compared with a preset degree of superheat of exhaust gas. In the present embodiment, the preset exhaust superheat degree includes a first preset exhaust superheat degree and a second preset exhaust superheat degree. Specifically, taking R134a refrigerant as an example, the first preset discharge superheat degree may be set to 10K, and the second preset discharge superheat degree may be set to 15K;
(2) when the actual exhaust superheat degree is less than 10K, as the second valve 53 on the intermediate air supplement pipeline 50 is in a closed state, no refrigerant in the intermediate air supplement pipeline 50 can be supplemented into the air supplement port 13 of the compressor 10, and at the moment, the first valve 21 on the auxiliary pipeline 20 is opened, the superheated gas in the compression cavity of the compressor 10 reversely flows out from the air supplement port 13 and is rapidly supplemented into the air suction port 11 of the compressor 10 through the auxiliary pipeline 20, so that the suction superheat degree can be improved, the liquid refrigerant in the refrigerant vapor with liquid is rapidly evaporated before entering the compression cavity, the liquid compression of the compressor in the defrosting process is avoided, and the safe operation of the compressor can be effectively ensured;
(3) when the actual exhaust superheat degree is larger than 15K, the first valve 21 on the auxiliary pipeline 20 is closed;
(4) when the actual exhaust superheat degree is less than or equal to 10K and less than or equal to 15K, the first valve 21 on the auxiliary pipeline 20 keeps the current state. If the actual exhaust superheat degree is gradually reduced to the interval from above 15K, the first valve 21 is in a closed state before, so that the first valve 21 is still in a closed state in the exhaust superheat degree interval; if the actual exhaust superheat degree gradually rises from 10K or less to this interval, the first valve 21 is in the open state before the first valve 21 is in the open state, and therefore the first valve 21 is in the open state in this exhaust superheat degree interval.
And secondly, a control method of the middle air supplement pipeline 50.
(1) The actual suction pressure at the suction port 11 is detected by the pressure sensor 60, and the actual suction pressure detected at the suction port 11 is compared with the preset suction pressure. In this embodiment, the preset suction pressure includes a first preset suction pressure and a second preset suction pressure. Specifically, taking R134a refrigerant as an example, the first preset suction pressure may be set to 0.3bar, and the second preset suction pressure may be set to 0.5 bar;
(2) when the actual suction pressure is less than 0.3bar, the first valve 21 on the auxiliary pipeline 20 and the second valve 53 on the intermediate gas supplementing pipeline 50 are opened simultaneously, the refrigerant in the circulating pipeline 40 is subjected to heat exchange through the economizer 30 to form medium-temperature and medium-pressure refrigerant gas, and the refrigerant gas is introduced into the gas supplementing port 13 of the compressor through the intermediate gas supplementing pipeline 50 and is also introduced into the gas suction port 11 of the compressor 10, so that the suction pressure can be quickly increased, and the suction pressure is recovered to be within the allowable operation range of the compressor (more than 0.5 bar);
(3) when the actual suction pressure is greater than 0.5bar, the first valve 21 on the auxiliary line 20 is closed and the second valve 53 on the intermediate gas supply line 50 is open, the refrigerant gas being introduced into the compressor gas supply port 13 only via the intermediate gas supply line 50;
(4) when the actual suction pressure is less than or equal to 0.3bar and less than or equal to 0.5bar, the first valve 21 on the auxiliary line 20 and the second valve 53 on the intermediate gas supply line 50 are kept in the current state. If the actual suction pressure is gradually decreased from 0.5bar or more to the interval, the first valve 21 is closed and the second valve 53 is opened, so that the first valve 21 is still closed and the second valve 53 is still opened in the pressure interval; if the actual suction pressure is gradually increased from 0.3bar or less to this interval, the first valve 21 and the second valve 53 are in the open state before the first valve 21 and the second valve 53 are in the open state in this pressure interval.
And thirdly, controlling the middle liquid spraying pipeline 80 and the tail liquid spraying pipeline 90.
(1) The actual exhaust temperature at the exhaust port 12 is detected by the temperature sensor 70, and is compared with the preset exhaust temperature. In this embodiment, the preset exhaust temperature includes a first preset exhaust temperature, a second preset exhaust temperature, a third preset exhaust temperature and a fourth preset exhaust temperature. Specifically, taking R134a refrigerant as an example, the first preset discharge temperature may be set to 85 ℃, the second preset discharge temperature to 95 ℃, the third preset discharge temperature to 90 ℃, and the fourth preset discharge temperature to 100 ℃;
(2) when the actual exhaust temperature is less than 85 ℃, the tail liquid injection valve 91 is closed; when the actual exhaust temperature is higher than 95 ℃, the tail liquid spraying valve 91 is opened, and at the moment, the tail liquid spraying pipeline 90 can supplement the refrigerant subjected to heat exchange of the economizer 30 into a suction cavity of the compressor; when the actual exhaust temperature is between 85 ℃ and 95 ℃, the tail spray valve 91 keeps the current state;
(3) when the actual exhaust temperature is less than 90 ℃, the intermediate liquid injection valve 81 is closed; when the actual exhaust temperature is higher than 100 ℃, the intermediate liquid spraying valve 81 is opened, and at the moment, the intermediate liquid spraying pipeline 80 can supplement the refrigerant subjected to heat exchange of the economizer 30 into a compression cavity of the compressor; the intermediate liquid injection valve 81 remains in the current state when the actual exhaust temperature is between 90 ℃ and 100 ℃.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An air conditioning system, characterized in that the air conditioning system comprises:
a compressor (10) having an intake port (11), an exhaust port (12), and an air supply port (13);
and one end of the auxiliary pipeline (20) is communicated with the air supplementing port (13), the other end of the auxiliary pipeline (20) is communicated with the air suction port (11), and the compressor (10) can improve the superheat degree of the air suction port (11) of the compressor (10) through the auxiliary pipeline (20).
2. Air conditioning system according to claim 1, further comprising an economizer (30) and a circulation line (40), the circulation line (40) communicating with the suction port (11) and the discharge port (12), respectively, the economizer (30) being provided on the circulation line (40), the economizer (30) having a first inlet (31) and a first outlet (32), the first inlet (31) communicating with the discharge port (12), the first outlet (32) communicating with the suction port (11).
3. The air conditioning system according to claim 2, further comprising an intermediate air supply line (50), wherein one end of the intermediate air supply line (50) is communicated with the first outlet (32) of the economizer (30), the other end of the intermediate air supply line (50) is communicated with the air supply port (13), and the refrigerant flowing out of the first outlet (32) is heat-exchanged by the economizer (30) and then is supplied to the air supply port (13) through the intermediate air supply line (50).
4. Air conditioning system according to claim 3, characterized in that said intermediate air supply line (50) has a first section (51) and a second section (52) communicating with each other, said economizer (30) further comprising a second inlet (33) and a second outlet (34), said first section (51) having one end communicating with said first outlet (32), said first section (51) having the other end communicating with said second inlet (33), said second section (52) having one end communicating with said second outlet (34), said second section (52) having the other end communicating with said auxiliary line (20).
5. Air conditioning system according to claim 3, characterised in that a first valve (21) is arranged on the auxiliary line (20), said first valve (21) being arranged between the suction opening (11) and the connection of the intermediate air supply line (50) and the auxiliary line (20).
6. Air conditioning system according to claim 4, characterized in that a second valve (53) and a throttle valve (54) are arranged on the first section (51) and a non-return valve (55) is arranged on the second section (52).
7. Air conditioning system according to claim 1, further comprising a controller, a pressure sensor (60) and a temperature sensor (70), the pressure sensor (60) and the temperature sensor (70) being electrically connected to the controller, the pressure sensor (60) being arranged at the suction opening (11) and the temperature sensor (70) being arranged at the exhaust opening (12).
8. Air conditioning system according to claim 2, further comprising an intermediate liquid injection line (80), one end of the intermediate liquid injection line (80) communicating with the first outlet (32), the other end of the intermediate liquid injection line (80) communicating with an intermediate liquid injection port (14) of the compressor (10).
9. The air conditioning system as claimed in claim 8, further comprising a rear liquid spray pipe (90), one end of the rear liquid spray pipe (90) communicating with the first outlet (32), the other end of the rear liquid spray pipe (90) communicating with the suction port (11).
10. Air conditioning system according to claim 9, wherein an intermediate liquid injection valve (81) is arranged on the intermediate liquid injection pipeline (80), a first throttling assembly is arranged between the intermediate liquid injection pipeline (80) and the compressor (10), a tail liquid injection valve (91) is arranged on the tail liquid injection pipeline (90), and a second throttling assembly is arranged between the tail liquid injection pipeline (90) and the compressor (10).
CN201920944763.XU 2019-06-21 2019-06-21 Air conditioning system Active CN210123210U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920944763.XU CN210123210U (en) 2019-06-21 2019-06-21 Air conditioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920944763.XU CN210123210U (en) 2019-06-21 2019-06-21 Air conditioning system

Publications (1)

Publication Number Publication Date
CN210123210U true CN210123210U (en) 2020-03-03

Family

ID=69634097

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920944763.XU Active CN210123210U (en) 2019-06-21 2019-06-21 Air conditioning system

Country Status (1)

Country Link
CN (1) CN210123210U (en)

Similar Documents

Publication Publication Date Title
CN107255372A (en) Supercritical steam cycle and the heat pump for supply hot water machine that make use of the supercritical steam cycle
CN110940119B (en) Refrigerant circulation system and air conditioner under refrigeration mode
CN210123210U (en) Air conditioning system
CN106871470A (en) The pressure regulating method of air-conditioning system and air-conditioning system
CN115682376B (en) Air conditioning system
WO2021008331A1 (en) Heat pump unit
CN112113373B (en) Control method of air conditioning system
CN108248331A (en) Heat pump air conditioning system and electric vehicle
CN106766324A (en) Refrigeration system and the refrigerating plant with it
CN106482407B (en) Air conditioning system for preventing liquid impact of air conditioning compressor and control method thereof
CN105444454A (en) Pressure control type air energy water heater and control method
CN215002362U (en) Heat pump system
CN211953309U (en) Cascade heat pump unit
CN210832603U (en) Air conditioner
CN108151213A (en) Air conditioner, progress control method and computer readable storage medium
CN210772875U (en) Heat pump set
CN211575620U (en) Economizer subassembly and air conditioning system
CN112797675A (en) Air conditioner and control method thereof
CN111023360A (en) Air source heat pump unit
CN117387239B (en) Air conditioning system and related control method
CN210165604U (en) Air conditioning unit
CN218763660U (en) Heat pump type air conditioning unit
CN212378166U (en) Heat energy recycling integrated system
CN210832605U (en) Air conditioner
CN212690915U (en) Four-way valve, heat exchange system and air conditioning unit

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant