CN205014719U - Oil -gas separation device and refrigeration plant - Google Patents
Oil -gas separation device and refrigeration plant Download PDFInfo
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- CN205014719U CN205014719U CN201520680648.8U CN201520680648U CN205014719U CN 205014719 U CN205014719 U CN 205014719U CN 201520680648 U CN201520680648 U CN 201520680648U CN 205014719 U CN205014719 U CN 205014719U
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- oil
- storage tank
- gas
- oil storage
- lubricating oil
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- 238000000926 separation method Methods 0.000 title claims abstract description 21
- 238000005057 refrigeration Methods 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 238
- 239000010687 lubricating oil Substances 0.000 claims abstract description 83
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 claims abstract description 6
- 230000032683 aging Effects 0.000 claims description 14
- 239000003595 mist Substances 0.000 claims description 13
- 239000003507 refrigerant Substances 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 claims description 3
- 239000010726 refrigerant oil Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 11
- 238000005461 lubrication Methods 0.000 description 6
- 239000013589 supplement Substances 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses an oil -gas separation device and refrigeration plant, wherein, the oil -gas separation device is used for separating follow compressor exhaust oil -gas mixture, including oil storage tank, first detection meter, collection device and oil supplementing device, the oil storage tank is provided with first oil -out, second oil -out, oil gas entry and gas vent, the entry and the export of compressor communicate with second oil -out and oil gas entry respectively in proper order, collection device and first oil -out intercommunication, when collection device is used for the density of lubricating oil in first detection meter detects the oil storage tank to exceed the default, collect the lubricating oil of oil storage tank bottom, oil supplementing device is used for to supplying new lubricating oil in the oil storage tank. The utility model discloses a lubricating oil that ages is collected through set up a collection device on the oil storage tank to the oil -gas separation device in the oil storage tank, make the operation of compressor more smooth and easy to through the additional new lubricating oil of oil supplementing device, prevented the emergence of the phenomenon of collaborating, improved the work efficiency of compressor greatly.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, particularly a kind of gas and oil separating plant and refrigeration plant.
Background technology
A lot of refrigeration unit adopts external gas and oil separating plant at present, and the lubricating oil after separation gets back to compressor inside through oil drain out.Lubricating oil in existing gas and oil separating plant is in high temperature and high pressure environment for a long time, easy blackening, retrogradation, and like this, the lubrication of lubricating oil just have dropped greatly, and have a strong impact on the lubrication of moving component in compressor, the operating efficiency of compressor reduces greatly.
Utility model content
Main purpose of the present utility model is to provide a kind of gas and oil separating plant, is intended to the operating efficiency improving compressor.
For achieving the above object, the gas and oil separating plant that the utility model proposes, for by refrigerant and lubricating oil separation, comprise oil storage tank, gathering-device and recharging oil device, the lower end of described oil storage tank is provided with the first oil-out and the second oil-out, and the upper end of described oil storage tank is provided with oil gas entrance and the exhaust outlet for refrigerant outflow; Described second oil-out is communicated with the entrance and exit of compressor respectively with oil gas entrance; Described gathering-device is for collecting the aging lubricating oil bottom described oil storage tank by the first oil-out, described recharging oil device is used for supplementing new lubricating oil in described oil storage tank.
Preferably, described gathering-device comprises the first detection meter and collecting tank, described first detects meter is arranged in described oil storage tank, for detecting the density of lubricating oil in described oil storage tank, described collecting tank is communicated with described first oil-out, described collecting tank is used for, when described first detection meter detects that the density of the lubricating oil of the bottom of described oil storage tank exceedes preset value, collecting the lubricating oil bottom described oil storage tank.
Preferably, bottom in described oil storage tank is provided with a baffle plate, described oil storage tank is divided into the first oil groove and the second oil groove that arrange in left and right by described baffle plate, described first oil-out is arranged at described first oil groove, described second oil-out is arranged at the second oil groove, described second oil groove is for collecting the lubricating oil overflowed from described baffle plate from described first oil groove, and described first detects meter is arranged at described first oil groove.
Preferably, be also provided with the second detection meter in described second oil groove, described second detects meter for detecting the oil level in described second oil groove.
Preferably, the pipeline that described collecting tank is communicated with described first oil-out is provided with the first magnetic valve; When the density that described first detects the lubricating oil that meter detects in oil storage tank exceedes preset value, described first magnetic valve is opened.
Preferably, described recharging oil device comprises an oil pocket and pusher, described oil pocket has oil drain out, the connecting pipeline of described oil drain out and described oil storage tank is provided with the second magnetic valve, when the described first density detecting the lubricating oil that meter detects in oil storage tank exceedes preset value and is discharged by the aging lubricating oil bottom described oil storage tank, described second magnetic valve is opened, and the lubricating oil in described oil pocket injects in described oil storage tank by described pusher.
Preferably, described gas and oil separating plant comprises Oil-gas Separation assembly, described Oil-gas Separation assembly comprise the upper end of being located at described oil storage tank and near and face the oil baffle of described oil gas entrance and/or point oily filter core be arranged in holding vessel and/or be arranged at the mist eliminator of described exhaust outlet.
Preferably, described mist eliminator is provided with a diversion rod, described diversion rod from described mist eliminator to downward-extension.
The utility model also provides a kind of refrigeration plant, and described refrigeration plant comprises above-mentioned gas and oil separating plant.
Preferably, described refrigeration plant is air-conditioning or refrigerator.
Gas and oil separating plant of the present utility model by arranging a gathering-device on oil storage tank, collect lubricating oil aging in oil storage tank, make the operation of compressor more smooth and easy, and supplement new lubricating oil in time by recharging oil device, prevent the generation of phenomenon of collaborating, substantially increase the operating efficiency of compressor.
Accompanying drawing explanation
Fig. 1 is the structural representation that an embodiment of the utility model gas and oil separating plant is connected with compressor;
Fig. 2 is the syndeton schematic diagram of gas and oil separating plant, compressor, outdoor heat exchanger, orifice union and indoor heat exchanger in Fig. 1.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 10 | Gas and oil separating plant | ||
| 11 | Oil storage tank | 11a | First oil groove |
| 11a | Second oil groove | 111 | First oil-out |
| 112 | Second oil-out | 113 | Oil gas entrance |
| 114 | Exhaust outlet | 121 | First detects meter |
| 12 | Gathering-device | 123 | First magnetic valve |
| 13 | Recharging oil device | 131 | Oil pocket |
| 132 | Pusher | 133 | Second magnetic valve |
| 14 | Baffle plate | 15 | Second detects meter |
| 16 | Oil-gas Separation assembly | 161 | Oil baffle |
| 162 | Divide oily filter core | 163 | Mist eliminator |
| 164 | Diversion rod | 17 | Capillary |
| 20 | Compressor | 21 | Outdoor heat exchanger |
| 22 | Orifice union | 23 | Indoor heat exchanger |
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Be described further with regard to the technical solution of the utility model below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
See figures.1.and.2, the utility model proposes a kind of gas and oil separating plant 10.
In the utility model embodiment, a kind of gas and oil separating plant 10, for by refrigerant and lubricating oil separation, it is characterized in that, comprise oil storage tank 11, gathering-device 12 and recharging oil device 13, the lower end of described oil storage tank 11 is provided with the first oil-out 111 and the second oil-out 112, and the upper end of described oil storage tank 11 is provided with oil gas entrance 113 and the exhaust outlet 114 for refrigerant outflow; Described second oil-out 112 is communicated with the entrance and exit of compressor 20 respectively successively with oil gas entrance 113; Described gathering-device 12 is for collecting the aging lubricating oil bottom described oil storage tank 11 by the first oil-out 111, described recharging oil device 13 for supplementing new lubricating oil in described oil storage tank 11.
Particularly, the work of compressor 20 often needs lubricating oil, smooth and easy to make compressor 20 work.Main component in oil storage tank 11 is lubricating oil.When compressor 20 runs, lubricating oil flows into described compressor 20 after the second oil-out 112 flows to capillary 17, thinks that the operation of compressor 20 provides lubrication.Compressor 20 operationally, to flow in oil storage tank 11 by oil gas entrance 113 after the refrigerant compression in compressor 20, in the process, lubricating oil and refrigerant form gas mixture and together enter in oil storage tank 11, gas mixture is separated by oil storage tank 11, lubricating oil after separation is retained in oil storage tank 11, and refrigerant is discharged by exhaust outlet 114, is back in compressor 20 after outdoor heat exchanger 21, orifice union 22, indoor heat exchanger 23 by the gas returning port of compressor 20.
Compressor 20 is in the process of above-mentioned workflow, and lubricating oil is through repeatedly using, and meeting blackening gradually, retrogradation, lubrication reduces gradually.And described gathering-device 12 can be collected the lubricating oil of blackening, retrogradation, thus make the lubricating oil in described oil storage tank 11 cleaner, be beneficial to the lubrication of compressor 20.
It should be noted that, the embodiment of described gathering-device 12 has multiple, and as gathering-device 12 comprises and the valve that arranges on the connecting line of oil storage tank 11, this valve can regularly be opened, and as opened once every 2 days, continues for 5 seconds at every turn.Can also be that gathering-device 12 comprises the oil level detector be arranged in oil storage tank, when the oil level in oil storage tank 11 exceedes preset value, the valve open on the pipeline be communicated with oil storage tank 11, the outflow of lubrication oil bottom oil storage tank 11.About another embodiment of described gathering-device with reference to following content.
In addition, described recharging oil device 13 is after the lubricating oil of blackening, retrogradation is discharged by oil storage tank 11, new lubricating oil can be supplemented in oil storage tank 11, can preventing from collaborating, (lubricating oil in oil storage tank 11 is less for phenomenon, can not meet compressor 20 operation demand, refrigerant is directly entered in compressor 20 by second row hydraulic fluid port 112) generation.When phenomenon of collaborating, the high pressure gaseous refrigerant through second row hydraulic fluid port 112 outflow does not enter outdoor heat exchanger 21 and carries out heat exchange, is just equivalent to this part refrigerant and does not play refrigeration, cause air-conditioning system refrigerating capacity to decline.
Gas and oil separating plant 10 of the present utility model by arranging a gathering-device 12 on oil storage tank 11, collect lubricating oil aging in oil storage tank 11, make the operation of compressor 20 more smooth and easy, and supplement new lubricating oil in time by recharging oil device 13, prevent the generation of phenomenon of collaborating, substantially increase the operating efficiency of compressor 11.
Further, described gathering-device 12 comprises the first detection meter 121 and collecting tank 122, described first detects meter 121 is arranged in described oil storage tank 11, for detecting the density of lubricating oil in described oil storage tank 11, described collecting tank 122 is communicated with described first oil-out 111, described collecting tank 122, for when described first detection meter 121 detects that the density of the lubricating oil of the bottom of described oil storage tank 11 exceedes preset value, collects the lubricating oil bottom described oil storage tank 11.
When the density that described first detects the lubricating oil that meter 121 detects in oil storage tank 11 exceedes preset value, in oil storage tank 11, the lubricating oil (aging lubricating oil) of bottom is disposed in gathering-device 122; While in aging Grease relief to collecting tank 122, the lubricating oil that described recharging oil device 13 is new in oil storage tank 11, to fill up the lubricating oil of discharge in oil storage tank 11.
On the one hand, when described first detection meter 121 detects that the density of lubricating oil exceedes preset value, the aging lubricating oil in oil storage tank 11 can be discharged in time, makes the operation of compressor 20 more smooth and easy.On the other hand, described recharging oil device 13 supplements new lubricating oil in time.
Further, bottom in described oil storage tank 11 is provided with a baffle plate 14, described oil storage tank 11 is divided into the first oil groove 11a and the second oil groove 11b that arrange in left and right by described baffle plate 14, described first oil-out 111 is arranged at described first oil groove 11a, described second oil-out 112 is arranged at the second oil groove 11b, described second oil groove 11b is for collecting the lubricating oil overflowed from described baffle plate 14 from described first oil groove 11a, and described first detects meter 121 is arranged at described first oil groove 11a.
。In the present embodiment, the bottom of oil storage tank 11 is divided into the first oil groove 11a and the second oil groove 11b by arranging of described baffle plate 14, described second oil groove 11b is for carrying the lubricating oil overflowed along described baffle plate 14 from the first oil groove 11a, so, in described second oil groove 11b, the lubricating oil of carrying is the lubricating oil on oil body upper strata in the first oil groove 11a, more clean, make described compressor 20 run more smooth and easy.
Further, the second detection meter 15 is also provided with in described second oil groove 11b, described second detects meter 15 for when described recharging oil device 13 supplements new lubricating oil in described oil storage tank 11, detect the oil level in the second oil groove 11b, when the oil level that described second detection meter 15 detects in the second oil groove 11b exceedes preset value, then supplement new oil to complete, close recharging oil device 13.
Further, the pipeline that described collecting tank 122 is communicated with described first oil-out 111 is provided with the first magnetic valve 123; When the density that described first detects the lubricating oil that meter inspection 121 measures in oil storage tank 11 exceedes preset value, described first magnetic valve 123 is opened.
Be understandable that, described first detects meter 121 is communicated to connect by a controller (not shown) with described first magnetic valve 123, when the lubricating oil density that described first detection meter 121 detects in oil storage tank 11 exceedes preset value, described controller controls described first magnetic valve 123 and opens, and the aging lubricating oil being in oil storage tank 11 bottom is banished in collecting tank 122 by described first oil-out 111.When described first detection meter 121 detects that the density of the lubricating oil in oil storage tank 11 does not exceed preset value or also do not detect the density of the lubricating oil in oil storage tank 11, described first magnetic valve 123 keeps cutting out.In addition, described controller also can be described first part detecting meter 121, and described first detects the switch that meter 121 directly can control described first magnetic valve 123.
Further, described recharging oil device 13 comprises an oil pocket 131 and pusher 132, described oil pocket 131 has oil drain out, the connecting pipeline of described oil drain out and described oil storage tank 11 is provided with the second magnetic valve 133, when described first detects the density of lubricating oil that meter 121 detects in oil storage tank 11 and exceed preset value and after being discharged by aging lubricating oil, described second magnetic valve 133 is opened, and the lubricating oil in described oil pocket 131 injects in described oil storage tank 11 by described pusher 132.
When the density that described first detects the lubricating oil that meter 121 detects in oil storage tank 11 exceedes preset value, Grease relief aging bottom described oil storage tank 11 is to described collecting tank 122, described recharging oil device 13 injects new lubricating oil in described oil storage tank 11, to make up the aging lubricating oil emitted in described oil storage tank 11.Particularly, described recharging oil device 13 and the connecting pipeline of described oil storage tank 11 are provided with the second magnetic valve 133, described second magnetic valve 133 and described first is detected meter 121 and can be communicated to connect by a controller, when the lubricating oil density that described first detection meter 121 detects in described oil storage tank 11 exceedes preset value, first detects meter 121 sends a regulation and controlling of information to described controller, and controller controls described second magnetic valve 133 and opens after receiving this regulation and controlling of information.Certainly, controller also can be described first part detecting meter 121, and described first detects the switch that meter 121 directly can control described second magnetic valve 133.
Further, described gas and oil separating plant 10 comprises Oil-gas Separation assembly 16, described Oil-gas Separation assembly 16 comprise the upper end of being located at described oil storage tank 11 and near and face the oil baffle 161 of described oil gas entrance 113 and/or point oily filter core 162 be arranged in holding vessel 11 and/or be arranged at the mist eliminator 163 of described exhaust outlet 114.
The mixture of refrigerant, lubricating oil is mainly separated by described Oil-gas Separation assembly 16, and this Oil-gas Separation assembly 16 has above-mentioned numerous embodiments, and preferred embodiment is that this Oil-gas Separation assembly 16 comprises oil baffle 161, point oily filter core 162 and mist eliminator 163; When gas mixture flows into described oil storage tank 11 from described oil gas entrance 113, be subject to the backstop of described oil baffle 161, gas mixture first time is separated, and falls into bottom oil storage tank 11 after parts of lubricating oil is separated; After first time is separated, described gas mixture enters described point oily filter core 162, and point oily filter core 162 pairs of gas mixtures carry out second time and are separated, and fall into bottom oil storage tank 11 after parts of lubricating oil is separated; After second time is separated, described mist eliminator 163 pairs of gas mixtures carry out third time separation, are separated further by residual lubricating oil.After three times are separated, the most lubricating oil in gas mixture can be separated.
Further, described mist eliminator 163 is provided with a diversion rod 164, described diversion rod 164 from described mist eliminator 163 to downward-extension.
In order to further by the lubricating oil separation in gas mixture, in the present embodiment, by setting up described diversion rod 164, make a small amount of lubricating oil through described mist eliminator 163 can along the bottom of described diversion rod 164 downstream to oil storage tank 11.
The utility model also provides a kind of refrigeration plant, and as air-conditioner or refrigerator, described refrigeration plant comprises above-mentioned gas and oil separating plant 10.
Particularly, owing to being provided with above-mentioned gas and oil separating plant 10 in this refrigeration plant, therefore, all these refrigeration plants of usefulness of above-mentioned gas and oil separating plant 10 also should one should to have, and do not repeat one by one at this.
Should be noted that; the technical scheme of each embodiment of the present utility model can be combined with each other; but must be can be embodied as basis with those skilled in the art; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme does not exist, also not the utility model require protection domain within.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a gas and oil separating plant, for by refrigerant and lubricating oil separation, it is characterized in that, comprise oil storage tank, gathering-device and recharging oil device, the lower end of described oil storage tank is provided with the first oil-out and the second oil-out, and the upper end of described oil storage tank is provided with oil gas entrance and the exhaust outlet for refrigerant outflow; Described second oil-out is communicated with the entrance of compressor, the outlet of described oil gas entrance and compressor; Described gathering-device is for collecting the aging lubricating oil bottom described oil storage tank by the first oil-out, described recharging oil device is used for supplementing new lubricating oil in described oil storage tank.
2. gas and oil separating plant as claimed in claim 1, it is characterized in that, described gathering-device comprises the first detection meter and collecting tank, described first detects meter is arranged in described oil storage tank, for detecting the density of lubricating oil in described oil storage tank, described collecting tank is communicated with described first oil-out, described collecting tank is used for, when described first detection meter detects that the density of the lubricating oil of the bottom of described oil storage tank exceedes preset value, collecting the lubricating oil bottom described oil storage tank.
3. gas and oil separating plant as claimed in claim 2, it is characterized in that, bottom in described oil storage tank is provided with a baffle plate, described oil storage tank is divided into the first oil groove and the second oil groove that arrange in left and right by described baffle plate, described first oil-out is arranged at described first oil groove, and described second oil-out is arranged at the second oil groove, and described second oil groove is for collecting the lubricating oil overflowed from described baffle plate from described first oil groove, further, described first detection meter is arranged at described first oil groove.
4. gas and oil separating plant as claimed in claim 3, is characterized in that, be also provided with the second detection meter in described second oil groove, and described second detects meter for detecting the oil level in described second oil groove.
5. gas and oil separating plant as claimed in claim 2, is characterized in that, the pipeline that described collecting tank is communicated with described first oil-out is provided with the first magnetic valve; When the density that described first detects the lubricating oil that meter detects in oil storage tank exceedes preset value, described first magnetic valve is opened.
6. gas and oil separating plant as claimed in claim 5, it is characterized in that, described recharging oil device comprises an oil pocket and pusher, described oil pocket has oil drain out, the connecting pipeline of described oil drain out and described oil storage tank is provided with the second magnetic valve, when the described first density detecting the lubricating oil that meter detects in oil storage tank exceedes preset value and is discharged by the aging lubricating oil bottom described oil storage tank, described second magnetic valve is opened, and the lubricating oil in described oil pocket injects in described oil storage tank by described pusher.
7. gas and oil separating plant as claimed in claim 1, it is characterized in that, described gas and oil separating plant comprises Oil-gas Separation assembly, described Oil-gas Separation assembly comprise the upper end of being located at described oil storage tank and near and face the oil baffle of described oil gas entrance and/or point oily filter core be arranged in holding vessel and/or be arranged at the mist eliminator of described exhaust outlet.
8. gas and oil separating plant as claimed in claim 7, is characterized in that, described mist eliminator is provided with a diversion rod, described diversion rod from described mist eliminator to downward-extension.
9. a refrigeration plant, is characterized in that, described refrigeration plant comprises the gas and oil separating plant as described in any one of claim 1 to 8.
10. refrigeration plant as claimed in claim 9, it is characterized in that, described refrigeration plant is air-conditioning or refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520680648.8U CN205014719U (en) | 2015-09-02 | 2015-09-02 | Oil -gas separation device and refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520680648.8U CN205014719U (en) | 2015-09-02 | 2015-09-02 | Oil -gas separation device and refrigeration plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205014719U true CN205014719U (en) | 2016-02-03 |
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ID=55213317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520680648.8U Active CN205014719U (en) | 2015-09-02 | 2015-09-02 | Oil -gas separation device and refrigeration plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205014719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805986A (en) * | 2016-04-27 | 2016-07-27 | 田幼华 | Heat pump system with auxiliary oil return |
| CN117753143A (en) * | 2024-02-22 | 2024-03-26 | 杭州汽轮新能源有限公司 | Intelligent oil mist removing system of lubricating oil tank of combustion engine and control method thereof |
-
2015
- 2015-09-02 CN CN201520680648.8U patent/CN205014719U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805986A (en) * | 2016-04-27 | 2016-07-27 | 田幼华 | Heat pump system with auxiliary oil return |
| CN117753143A (en) * | 2024-02-22 | 2024-03-26 | 杭州汽轮新能源有限公司 | Intelligent oil mist removing system of lubricating oil tank of combustion engine and control method thereof |
| CN117753143B (en) * | 2024-02-22 | 2024-05-28 | 杭州汽轮新能源有限公司 | Intelligent oil mist removing system of lubricating oil tank of combustion engine and control method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230406 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: Shenzhen Huaxi Investment Co.,Ltd. Address before: 528427, Zhongshan, Guangdong province Nantou town head road Patentee before: TCL AIR CONDITIONER (ZHONGSHAN) Co.,Ltd. |