Air conditioner
By configuring a recycling system in the air conditioner, the problem of foreign objects entering the compressor during the air conditioner replacement process is solved, and the effective recycling of foreign objects and stable operation of the refrigerant system are achieved.
Patent Information
- Application Number
- CN202520075228.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-13
AI Technical Summary
During the air conditioner replacement process, foreign objects such as dust and oil can easily enter the refrigerant lines, causing damage to the compressor.
Configure a recycling system, including recycling pipelines and recycling devices, to separate foreign matter through a gas-liquid separator and recycle it to the recycling device, preventing foreign matter from entering the compressor.
It effectively recovers foreign objects introduced during the replacement process, prevents compressor damage, ensures the normal operation of the refrigerant system and the efficiency of refrigerant circulation, and avoids refrigerant waste.
Smart Images
Figure CN223896296U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air conditioning technical field, specifically, relate to a kind of air conditioners. BACKGROUND
[0002] At present, air conditioner on market, in actual application, usually need to update indoor unit, compressor and the like components according to user demand, especially the multi-connected air conditioner with multiple indoor units.
[0003] In the air conditioner updating process, it is easy to introduce dust, oil stains and other foreign matters into the refrigerant pipeline, causing the foreign matters to enter the compressor when the subsequent air conditioner is started, resulting in damage to the compressor. INVENTION CONTENTS
[0004] The problem solved by the utility model is to prevent the foreign matters introduced during the updating of the components of the air conditioner from damaging the compressor.
[0005] To solve the above problems, the utility model provides an air conditioner which can recycle and process the foreign matters introduced during the updating of the components, to avoid the foreign matters from entering the compressor.
[0006] The embodiment of the utility model provides an air conditioner, which comprises a refrigerant system and a recycling system, the refrigerant system comprises a refrigerant pipeline, a compressor and a gas-liquid separator arranged on the refrigerant pipeline;
[0007] The recycling system comprises a recycling pipeline and a recycling device arranged on the recycling pipeline, one end of the recycling pipeline is connected to the bottom of the gas-liquid separator, the other end is communicated with the input end of the compressor, and the recycling device is used to recycle the foreign matters separated from the refrigerant by the gas-liquid separator.
[0008] The air conditioner provided by the embodiment of the utility model is configured with a recycling system, one end of the recycling pipeline of the recycling system is connected to the bottom of the gas-liquid separator, the other end is communicated with the input end of the compressor, and the recycling device is arranged between the two ends of the recycling pipeline. In actual application, after the air conditioner completes the updating of the components, it can run in a cleaning mode (i.e. a refrigeration mode) for a period of time to make the dust, oil stains and other foreign matters in the refrigerant pipeline flow into the gas-liquid separator with the refrigerant. The part of the foreign matters deposited at the bottom of the gas-liquid separator enters the recycling device through the return pipeline, and the excess refrigerant entering the recycling device together can return to the compressor through the recycling pipeline, so as to complete the separation and recycling of the foreign matters. Therefore, the air conditioner provided by the embodiment of the utility model can recycle and process the foreign matters introduced during the updating of the components, to avoid the foreign matters from entering the compressor.
[0009] In an optional embodiment, a first control valve is arranged on the recovery pipeline between the gas-liquid separator and the recovery device, and is used to control the opening and closing of the recovery pipeline between the gas-liquid separator and the recovery device.
[0010] The first control valve is opened before the air conditioner is updated and runs in the cleaning mode, and is closed after the recovery of the foreign matters.
[0011] In an optional embodiment, the diameter of the first control valve is between 7 mm and 9 mm.
[0012] Since the foreign matters flowing in the recovery pipeline have a large density, a large-diameter valve body is not needed, and a small-diameter model can be selected for the first control valve, thereby saving cost.
[0013] In an optional embodiment, a second control valve is arranged on the recovery pipeline between the recovery device and the compressor, and is used to control the opening and closing of the recovery pipeline between the recovery device and the compressor.
[0014] The second control valve is opened before the air conditioner is updated and runs in the cleaning mode, and is closed after the recovery of the foreign matters.
[0015] In an optional embodiment, the diameter of the second control valve is between 7 mm and 9 mm.
[0016] Since the foreign matters flowing in the recovery pipeline have a large density, a large-diameter valve body is not needed, and a small-diameter model can be selected for the second control valve, thereby saving cost.
[0017] In an optional embodiment, the recovery device has a containing cavity for containing the foreign matters, and the containing cavity is in communication with the recovery pipeline.
[0018] The foreign matters at the bottom of the gas-liquid separator are contained in the containing cavity of the recovery device after entering the recovery device through the recovery pipeline, and the excess refrigerant flows into the input end of the compressor through the recovery pipeline.
[0019] In an optional embodiment, the recovery pipeline includes an input pipe section and an output pipe section, one end of the input pipe section is connected to the bottom of the gas-liquid separator, the other end is connected to the top of the containing cavity, one end of the output pipe section is connected to the top of the containing cavity, and the other end is in communication with the input end of the compressor.
[0020] One end of the inlet pipe is connected to the bottom of the gas-liquid separator, and the other end is connected to the top of the containment cavity. One end of the outlet pipe is connected to the top of the containment cavity, and the other end is connected to the inlet of the compressor. After foreign objects and excess refrigerant enter the top of the containment cavity together, they separate under the action of gravity. The foreign objects fall to the bottom of the containment cavity, and the excess refrigerant enters the outlet pipe from the top of the containment cavity and then flows into the compressor.
[0021] In an optional embodiment, the recovery pipeline includes an input pipe section and an output pipe section. One end of the input pipe section is connected to the bottom of the gas-liquid separator, and the other end is connected to the bottom of the accommodating cavity. One end of the output pipe section is connected to the top of the accommodating cavity, and the other end is connected to the input end of the compressor.
[0022] One end of the inlet pipe is connected to the bottom of the gas-liquid separator, and the other end is connected to the bottom of the containment cavity. One end of the outlet pipe is connected to the top of the containment cavity, and the other end is connected to the inlet of the compressor. After foreign objects and excess refrigerant enter the bottom of the containment cavity together, the foreign objects accumulate at the bottom of the containment cavity, and the excess refrigerant enters the outlet pipe from the top of the containment cavity and then flows into the compressor.
[0023] In an optional embodiment, the refrigerant pipeline includes a refrigerant return pipe section that connects the output end of the gas-liquid separator to the input end of the compressor, and the end of the recovery pipeline away from the gas-liquid separator is connected to the refrigerant return pipe section.
[0024] The output end of the gas-liquid separator is connected to the input end of the compressor through the refrigerant return pipe section. Excess refrigerant flowing out of the recovery pipeline enters the refrigerant return pipe section and then enters the input end of the compressor together with the refrigerant flowing out of the gas-liquid separator.
[0025] In an optional embodiment, the refrigerant system further includes a plurality of indoor evaporators disposed on the refrigerant piping.
[0026] The refrigerant system includes multiple indoor evaporators, meaning the air conditioner is a multi-split air conditioner. After replacing the indoor unit or compressor, it can recycle any foreign objects introduced during the replacement process, preventing them from entering the compressor. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of the present utility model;
[0028] Figure 2 for Figure 1 Schematic diagram of a gas-liquid separator;
[0029] Figure 3 for Figure 1 A schematic diagram of the recycling device.
[0030] Reference Signs List:
[0031] 100 - air conditioner; 110 - refrigerant system; 111 - refrigerant pipeline; 1111 - refrigerant return pipeline section; 112 - compressor; 113 - gas-liquid separator; 114 - indoor evaporator; 115 - outdoor condenser; 116 - four-way valve; 120 - recovery system; 121 - recovery pipeline; 1211 - input pipeline section; 1212 - output pipeline section; 122 - recovery device; 1221 - accommodating cavity; 123 - first control valve; 124 - second control valve. DETAILED DESCRIPTION
[0032] In order to make the above objectives, features and advantages of the present application more apparent, a specific embodiment of the present application will be described in detail below with reference to the accompanying drawings.
[0033] Please refer to Figure 1 , Figure 1 Fig. 1 shows a structural schematic diagram of an air conditioner 100 provided by the present embodiment.
[0034] The air conditioner 100 provided by the present embodiment is actually a multi-connected type, which has one outdoor unit and multiple indoor units. The air conditioner 100 includes a refrigerant system 110, which includes a refrigerant pipeline 111, and a compressor 112 and a gas-liquid separator 113 arranged on the refrigerant pipeline 111. It can be understood that the refrigerant system 110 also includes an outdoor condenser 115, a four-way valve 116 and multiple indoor evaporators 114 arranged on the refrigerant pipeline 111.
[0035] In actual application, the air conditioner 100 usually needs to update multiple components including the compressor 112, the indoor unit, etc. During the disassembly and assembly process, dust, oil stains and other foreign matters will inevitably enter the refrigerant pipeline 111, so that when the air conditioner 100 is normally operated after the update is completed, the foreign matters in the refrigerant pipeline 111 will flow into the compressor 112, causing damage to the compressor 112.
[0036] In order to solve this problem, the air conditioner 100 provided by the present embodiment further includes a recovery system 120, which includes a recovery pipeline 121 and a recovery device 122 arranged on the recovery pipeline 121. One end of the recovery pipeline 121 is connected to the bottom of the gas-liquid separator 113, and the other end is in communication with the input end of the compressor 112. The recovery device 122 is used to recover the foreign matters separated from the refrigerant by the gas-liquid separator 113.
[0037] Specifically, after the air conditioner 100 completes the replacement of the compressor 112 or the indoor unit, the air conditioner 100 can first run in the refrigeration mode for a period of time. The refrigerant output by the compressor 112 flows through the outdoor condenser 115 and the plurality of indoor evaporators 114 in turn, and then enters the gas-liquid separator 113. In this process, the foreign matter in the refrigerant pipeline 111 enters the gas-liquid separator 113 together with the refrigerant. After the foreign matter is separated from the refrigerant in the gas-liquid separator 113, the foreign matter enters the recovery device 122 through the recovery pipeline 121. The excess refrigerant entering the recovery pipeline 121 together with the foreign matter flows back to the input end of the compressor 112 through the recovery pipeline 121, thereby avoiding waste of the refrigerant.
[0038] Please refer to Figure 2 and Figure 3 , Figure 2 Fig. 6 shows a structural schematic diagram of the gas-liquid separator 113, Figure 3 Fig. 7 shows a structural schematic diagram of the recovery device 122.
[0039] In this embodiment, the recovery device 122 has a containing cavity 1221 for containing the foreign matter. The containing cavity 1221 is in communication with the recovery pipeline 121. The recovery device 122 and the gas-liquid separator 113 have the same principle, which is gravity separation. In another embodiment, the recovery device 122 can also be a device with a separation principle such as filtering function. The specific type can be selected according to the actual application conditions.
[0040] After the gaseous refrigerant in the refrigerant pipeline 111 carries the foreign matter into the gas-liquid separator 113, the foreign matter with a larger gravity sinks and accumulates in the bottom space of the gas-liquid separator 113. Under the action of pressure, the gaseous refrigerant flows out of the gas-liquid separator 113 from the top space of the gas-liquid separator 113, thereby realizing the gas-liquid separation of the foreign matter and the refrigerant.
[0041] The foreign matter accumulated in the bottom space of the gas-liquid separator 113 enters the recovery system 120 through the recovery pipeline 121 connected to the bottom of the gas-liquid separator 113, and then flows into the containing cavity 1221 of the recovery device 122 along the recovery pipeline 121. In this process, part of the excess refrigerant may enter the recovery pipeline 121 together. This part of the excess refrigerant completes the gas-liquid separation with the foreign matter in the containing cavity 1221. That is, the foreign matter accumulates in the bottom space of the containing cavity 1221, and the excess refrigerant flows out of the top space of the containing cavity 1221 and flows to the compressor 112.
[0042] In this embodiment, the recovery pipeline 121 includes an input pipe section 1211 and an output pipe section 1212. One end of the input pipe section 1211 is connected to the bottom of the gas-liquid separator 113, and the other end is connected to the top of the containing cavity 1221. One end of the output pipe section 1212 is connected to the top of the containing cavity 1221, and the other end is in communication with the input end of the compressor 112.
[0043] In practical application, the foreign matters and part of the excess refrigerant in the gas-liquid separator 113 enter the top of the accommodating cavity 1221 through the input pipe section 1211, and then, the foreign matters with greater gravity sink and accumulate at the bottom of the accommodating cavity 1221. Under the action of pressure, the gaseous refrigerant flows into the output pipe section 1212 from the space at the top of the accommodating cavity 1221, and then flows into the compressor 112 along the output pipe section 1212. That is, the excess refrigerant returns to the refrigerant system 110 to participate in the refrigeration and heating cycle again, so as to ensure that the function of the air conditioner 100 is not affected.
[0044] In another embodiment, according to the actual application condition, the end of the input pipe section 1211 away from the gas-liquid separator 113 can also be connected with the bottom of the accommodating cavity 1221.
[0045] In order to effectively control the foreign matter recycling process, in the embodiment, a first control valve 123 is arranged on the recycling pipeline 121 between the gas-liquid separator 113 and the recycling device 122, and the first control valve 123 is used to control the on-off of the recycling pipeline 121 between the gas-liquid separator 113 and the recycling device 122.
[0046] In other words, the first control valve 123 is arranged on the input pipe section 1211 and is used to control the on-off of the input pipe section 1211. Since the density of the foreign matters flowing in the recycling pipeline 121 is large, a large-diameter valve body is not required, and the first control valve 123 can be selected as a small-diameter type, thereby saving cost. As a preferred embodiment, the first control valve 123 is an electromagnetic valve, and the diameter of the first control valve 123 is between 7 mm and 9 mm.
[0047] Similarly, a second control valve 124 is arranged on the recycling pipeline 121 between the recycling device 122 and the compressor 112, and the second control valve 124 is used to control the on-off of the recycling pipeline 121 between the recycling device 122 and the compressor 112.
[0048] In other words, the second control valve 124 is arranged on the output pipe section 1212 and is used to control the on-off of the output pipe section 1212. Similarly, as a preferred embodiment, the second control valve 124 is also an electromagnetic valve, and the diameter of the second control valve 124 is between 7 mm and 9 mm.
[0049] In actual application, after the air conditioner 100 completes the component update, the old compressor 112 or indoor unit is disassembled, and the new compressor 112 or new indoor unit is assembled, the first control valve 123 and the second control valve 124 are opened. The air conditioner 100 first runs in the refrigeration mode for a period of time, so that the refrigerant in the refrigerant pipeline 111 carries the foreign matter into the gas-liquid separator 113, the foreign matter is separated from the refrigerant in the gas-liquid separator 113 and enters the input pipe section 1211 of the recovery pipeline 121, and flows into the recovery device 122 along the input pipe section 1211 and is separated from the excess refrigerant in the recovery device 122. That is, the foreign matter is retained in the accommodation cavity 1221 of the recovery device 122, and the excess refrigerant enters the output pipe section 1212 of the recovery pipeline 121 and flows into the compressor 112 along the output pipe section 1212, thereby completing the recovery of the foreign matter.
[0050] After the recovery of the foreign matter is completed, the first control valve 123 and the second control valve 124 can be controlled to be closed, so as to ensure the refrigerant circulation efficiency and avoid affecting the effect of the air conditioner 100. Actually, the refrigerant pipeline 111 comprises a refrigerant return pipe section 1111, the refrigerant return pipe section 1111 communicates the output end of the gas-liquid separator 113 with the input end of the compressor 112, and the end of the recovery pipeline 121 away from the gas-liquid separator 113 is connected with the refrigerant return pipe section 1111.
[0051] The refrigerant separated from the foreign matter in the gas-liquid separator 113 flows to the compressor 112 along the refrigerant return pipe section 1111, and the excess refrigerant flowing out of the output pipe section 1212 enters the refrigerant return pipe section 1111, merges with the refrigerant in the refrigerant return pipe section 1111 and flows into the compressor 112 together, so as to enter the next heat exchange cycle.
[0052] In summary, the air conditioner 100 provided by the embodiment is configured with the recovery system 120, which can recover and process the foreign matter in the refrigerant system 110, can prevent the compressor 112 from being damaged, can avoid causing the refrigerant in the refrigerant system 110 to be reduced, and can ensure that the refrigeration and heating capacity of the air conditioner 100 is not affected. Moreover, the structure of the refrigerant pipeline 111 of the air conditioner 100 is not changed, no additional control valve needs to be additionally arranged on the refrigerant pipeline 111, the pressure drop in the refrigeration or heating operation can be avoided, the suction pressure is ensured to be reduced, and the stability of the refrigeration and heating capacity is ensured.
[0053] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be the range limited by the claims.
Claims
1. An air conditioner, characterized in that, It includes a refrigerant system (110) and a recovery system (120). The refrigerant system (110) includes a refrigerant pipeline (111) and a compressor (112) and a gas-liquid separator (113) installed on the refrigerant pipeline (111). The recovery system (120) includes a recovery pipeline (121) and a recovery device (122) disposed on the recovery pipeline (121). One end of the recovery pipeline (121) is connected to the bottom of the gas-liquid separator (113), and the other end is connected to the input end of the compressor (112). The recovery device (122) is used to recover foreign matter separated from the refrigerant by the gas-liquid separator (113).
2. The air conditioner according to claim 1, characterized in that, A first control valve (123) is provided on the recovery pipeline (121) between the gas-liquid separator (113) and the recovery device (122). The first control valve (123) is used to control the opening and closing of the recovery pipeline (121) between the gas-liquid separator (113) and the recovery device (122).
3. The air conditioner according to claim 2, characterized in that, The diameter of the first control valve (123) is between 7 mm and 9 mm.
4. The air conditioner according to claim 1, characterized in that, A second control valve (124) is provided on the recycling pipeline (121) between the recycling device (122) and the compressor (112). The second control valve (124) is used to control the opening and closing of the recycling pipeline (121) between the recycling device (122) and the compressor (112).
5. The air conditioner according to claim 4, characterized in that, The diameter of the second control valve (124) is between 7 mm and 9 mm.
6. The air conditioner according to claim 1, characterized in that, The recycling device (122) has a receiving cavity (1221) for receiving foreign objects, and the receiving cavity (1221) is connected to the recycling pipeline (121).
7. The air conditioner according to claim 6, characterized in that, The recovery pipeline (121) includes an input pipe section (1211) and an output pipe section (1212). One end of the input pipe section (1211) is connected to the bottom of the gas-liquid separator (113), and the other end is connected to the top of the accommodating cavity (1221). One end of the output pipe section (1212) is connected to the top of the accommodating cavity (1221), and the other end is connected to the input end of the compressor (112).
8. The air conditioner according to claim 6, characterized in that, The recovery pipeline (121) includes an input pipe section (1211) and an output pipe section (1212). One end of the input pipe section (1211) is connected to the bottom of the gas-liquid separator (113), and the other end is connected to the bottom of the accommodating cavity (1221). One end of the output pipe section (1212) is connected to the top of the accommodating cavity (1221), and the other end is connected to the input end of the compressor (112).
9. The air conditioner according to claim 1, characterized in that, The refrigerant pipeline (111) includes a refrigerant return pipe section (1111), which connects the output end of the gas-liquid separator (113) to the input end of the compressor (112). The end of the recovery pipeline (121) away from the gas-liquid separator (113) is connected to the refrigerant return pipe section (1111).
10. The air conditioner according to claim 1, characterized in that, The refrigerant system (110) also includes a plurality of indoor evaporators (114), which are disposed on the refrigerant pipeline (111).