CN211233484U - Parallel oil separator - Google Patents
Parallel oil separator Download PDFInfo
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- CN211233484U CN211233484U CN201922262902.3U CN201922262902U CN211233484U CN 211233484 U CN211233484 U CN 211233484U CN 201922262902 U CN201922262902 U CN 201922262902U CN 211233484 U CN211233484 U CN 211233484U
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Abstract
The utility model relates to a parallel oil separator, which comprises two vertical separation tanks, wherein the lower part of the tank body of each vertical separation tank is provided with a lower end socket; the upper part of the tank body is provided with a detachable upper seal head; a filtering device is arranged in the vertical separation tank, an oil-gas inlet and an oil return port are arranged at the lower part of the tank body, and an oil pipe of the oil return port is positioned in the lower end enclosure; the height of the oil gas inlet is higher than that of the oil return port; the top of the upper end enclosure of the vertical separation tank is provided with an air outlet, a pressure gauge connector and an air extraction opening; the upper end enclosure is fixedly connected with the tank body through a flange; a sewage collecting pipe is arranged between the bottoms of the lower seal heads of the two vertical separation tanks, a sewage draining outlet is formed in the sewage collecting pipe, and the height of the bottom surface of the sewage collecting pipe is lower than that of the tail end of the bottom surface of the lower seal head; an air inlet pipe is arranged between the two tank bodies and close to the upper end enclosure, and an air inlet is arranged on the air inlet pipe; the middle parts of the two tank bodies are also provided with balance pipes. The utility model has the advantages of, the dirty pipe of collection sets up the purity that can improve the oil of separating out.
Description
Technical Field
The utility model relates to a separation or purify the device field of gas or liquid, especially a parallel oil separator.
Background
In air conditioners or other refrigeration equipment, a compressor is generally used for compressing a refrigerant, and the temperature is adjusted by absorbing or releasing heat through phase change generated between indoor equipment and outdoor equipment by the refrigerant; because the compressor needs to continuously do work in the using process and frequent and rapid friction is generated among all parts, certain oil needs to be filled in the compressor, so that the sealing effect can be achieved, and the friction among metal parts of the compressor can be reduced; in the process of discharging the refrigerant, a part of the compressor oil is always discharged together, in this case, the compressor oil is generally separated by an oil separator, and the separated compressor oil is injected into the compressor again for continuous use. In the design of industrial or centralized air conditioning units, there are often multiple or dual parallel air conditioning units, in which case each compressor is generally equipped with a corresponding oil separation device, although it is convenient to use, it occupies a small area, which brings many difficulties to the layout design of the air conditioning units, the structure is relatively complex, and it is inconvenient to install, use, maintain, etc.
To the oil separator of parallelly connected or multiple unit, certain research and development has been carried out to many air conditioner enterprises, for example the chinese utility model patent: an oil separator (authorized bulletin No. CN203586638U) for a parallel unit refrigerating system provides a horizontal integrated oil separator, which comprises a cylinder body and end sockets, wherein the end sockets are arranged on the left side and the right side of the cylinder body and connected with the cylinder body, two air inlet assemblies are arranged on the two sides of the cylinder body, a left filter screen and a right filter screen are arranged in the cylinder body in the radial direction, an air outlet assembly is arranged between the two filter screens, a baffle is arranged on the right side of the air outlet assembly, an oil storage tank is arranged at the bottom of the cylinder body, an anti-spiral plate is arranged in the oil storage tank, an oil outlet pipe is arranged outside the oil storage tank. The structure uses a common oil separator to replace two conventional oil separators, and can be suitable for refrigeration systems of parallel units; however, the horizontal design requires larger occupied space, and the oil return imbalance is easily caused when only one oil outlet pipe is designed at the bottom to respectively return oil to the compressors of the two oil separators.
Still another oil separator is like chinese utility model patent: a parallel gas-liquid separation device (No. CN203349587U) of a heat recovery multi-connected air conditioning unit comprises at least two gas-liquid separators which are connected with each other, each gas-liquid separator comprises a shell, a gas inlet pipe, a gas outlet pipe and a gas-liquid separation pipe arranged in the shell, the bottom of the shell is connected with a balance pipe, the gas inlet of the gas inlet pipe is connected with an evaporator, and the gas outlet of the gas inlet pipe extends into the shell; the input end of the gas outlet pipe is communicated with the gas-liquid separation pipe; the output ends of the gas outlet pipes of the gas-liquid separators are connected through a main pipe, and the output end of the main pipe is connected with the compressor; the balance pipes of the adjacent gas-liquid separators are communicated with each other. The structure connects a plurality of gas-liquid separators in parallel through a main pipe, and communicates the adjacent gas-liquid separators through the balance pipe, when the plurality of gas-liquid separators are combined for use, the installation is very convenient, and the separation effect is better; however, the same air outlet pipe is adopted for air outlet and oil return of the structure, and the air outlet pipe and the oil return pipe are separated to form a certain degree of mixing.
Therefore, further improvements in parallel oil separators are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a parallel oil separator can separate oil to parallel air conditioning unit, and filtration efficiency is high, and the oily impurity content of separation is low.
In order to achieve the purpose of the utility model, a parallel oil separator is provided, which comprises two vertical separation tanks, wherein the tank body of each vertical separation tank is in a cylindrical tubular structure, the lower part of each vertical separation tank is provided with a lower end socket, and the lower end sockets are welded on the lower part of the tank body; the upper part of the tank body is provided with a detachable upper end enclosure;
a filtering device is arranged in each vertical separation tank, an oil-gas inlet and an oil return port are formed in the lower part of the tank body, and an oil pipe of the oil return port is positioned in the lower end enclosure; the height of the oil gas inlet is higher than that of the oil return port; a liquid level meter hole is also formed in the lower part of the tank body, close to the lower end enclosure;
the top of the upper end enclosure of each vertical separation tank is provided with an air outlet, a pressure gauge connector and an air extraction opening; the upper end enclosure is fixedly connected with the tank body through a flange;
a sewage collecting pipe is arranged between the bottoms of the lower seal heads of the two vertical separation tanks, a sewage draining outlet is formed in the sewage collecting pipe, and the height of the bottom surface of the sewage collecting pipe is lower than that of the tail end of the bottom surface of the lower seal head;
an air inlet pipe is arranged between the tank bodies at the upper parts of the two vertical separation tanks close to the upper end enclosure, an air inlet is arranged on the air inlet pipe, and the air inlet pipe is communicated with the upper parts of the two tank bodies;
and the middle parts of the two vertical separation tanks are provided with balance pipes, and the balance pipes are provided with differential pressure signal transmitter interfaces.
Furthermore, a spare connector capable of being sealed is arranged on the balance pipe, and the spare connector is in a flange connection mode.
Furthermore, the tail end of the oil pipe is provided with a filter screen.
Further, a sealing gasket is arranged on the flange connecting surface of the tank body.
Furthermore, an upper seal head lifting device is arranged on the upper seal head.
Furthermore, a cleaning opening is formed in the sewage collecting pipe, clear water and the like can be injected into the cleaning opening to flush the sewage collecting pipe, and sewage is discharged from the sewage outlet.
When the parallel oil separation device is used, an oil gas inlet, an oil return port and a gas outlet are respectively connected to the relevant interfaces of each compressor of the parallel air conditioning unit, and the air inlet fills air into the tank body, so that the mobility of the entering mixed oil gas is better, the filtering speed is accelerated, the filtering effect is improved, and the filtered gas is discharged from the gas outlet; the filtered oil drops and gathers at the lower part of the lower seal head under the action of gravity, most of sediments such as impurities and the like sink into the sewage collecting pipe, and the oil purity of the oil which flows back through the oil pipe is high; under special conditions, if the air conditioning unit needs to be maintained, if only one compressor can be started, the oil separation device on one side can be started, at the moment, the standby interface can be started to be connected with flowing air, so that the positive pressure is kept in the vertical separation tank on the non-working side, the pressures in the vertical separation tanks on the two sides are approximately kept balanced, the oil at the bottom of the vertical separation tank on the working side can keep a proper liquid level, and the working requirement is met.
The utility model relates to a parallel oil separator compares with prior art and has following advantage:
(1) the dirt collecting pipe arranged at the bottom can further collect and precipitate impurities and the like in the oil collected in the lower end enclosure, so that the recycled oil flowing out of the oil return opening has high purity and low impurity content, the dirt collecting pipe only needs to be cleaned during cleaning, and the bottom of the tank body does not need to be cleaned generally;
(2) the spare interfaces arranged in the middle of the two tank bodies can be started under special conditions, and the single-side vertical separation tank can work normally by supplementing air pressure.
Drawings
FIG. 1 is a front view of a parallel oil separator of the present invention;
FIG. 2 is a side view of a parallel oil separator of the present invention;
FIG. 3 is a top view of a parallel oil separator of the present invention;
reference numerals: 1. a vertical separation tank; 11. a tank body; 111. an oil gas inlet; 112. an oil return port; 113. an oil pipe; 114. a level gauge bore; 12. a lower end enclosure; 13. an upper end enclosure; 131. an air outlet; 132. a pressure gauge interface; 133. an air extraction opening; 14. an upper head lifting device; 15. a sewage collecting pipe; 151. a sewage draining outlet; 152. cleaning the opening; 16. an air inlet pipe; 161. an air inlet; 17. a balance tube; 171. a differential pressure transmitter interface; 172. and a standby interface.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, the utility model relates to a parallel oil separator, which comprises two vertical separation tanks 1, wherein a tank body 11 of each vertical separation tank 1 is a cylindrical tubular structure, a lower end enclosure 12 is arranged at the lower part of each vertical separation tank 1, and the lower end enclosure 12 is welded at the lower part of the tank body 11; the upper part of the tank body 11 is also provided with a detachable upper seal head 13;
a filtering device (not shown in the figure) is arranged inside the vertical separation tank 1, a conventional oil separator filtering device is adopted, an oil gas inlet 111 and an oil return port 112 are also arranged at the lower part of the tank body 11 of each vertical separation tank 1, and an oil pipe 113 of the oil return port 112 is positioned in the lower end enclosure 12; the height of the oil gas inlet 111 is higher than that of the oil return port 112; a liquid level meter hole 114 is also formed in the lower part of the tank body 11, which is close to the lower end enclosure 12, and is used for connecting a liquid level meter to monitor the height of the liquid level in the lower end enclosure 12;
the top of the upper end enclosure 13 of the vertical separation tank 1 is provided with an air outlet 131, and the upper end enclosure 13 is also provided with a pressure gauge interface 132 and an air suction port 133; the pressure gauge interface 132 is connected with an external pressure gauge and used for reading a pressure value in the vertical separation tank 1, and when the pressure value in the vertical separation tank 1 is too large, the pressure is timely relieved through the air extraction port 133, so that the safety of the tank body is ensured; the upper end enclosure 13 is fixedly connected with the tank body 11 through a flange, and preferably, a sealing gasket is arranged on the flange connecting surface of the tank body 11; an upper end enclosure lifting device 14 can be further arranged on the upper end enclosure 13, and the upper end enclosure lifting device 14 can adopt Chinese invention patents: a structure disclosed in a vertical apparatus (application publication No. CN108557252A) in which a flange cover can be lifted rotatably;
a sewage collecting pipe 15 is arranged between the bottoms of the lower seal heads 12 of the two vertical separation tanks 1, a sewage draining outlet 151 is formed in the sewage collecting pipe 15, and the height of the bottom surface of the sewage collecting pipe 15 is lower than that of the tail end of the bottom surface of the lower seal head 12, so that impurities in the oil deposited in the lower seal head 12 can be precipitated downwards again along the sewage collecting pipe 15, most of the impurities are accumulated in the sewage collecting pipe 15, and the oil in the lower seal head 12 can directly flow back into the compressor through an oil return opening 112 for recycling; impurities accumulated in the sewage collecting pipe 15 can be discharged through the sewage discharging port 151 after the equipment is shut down, preferably, a cleaning port 152 is formed in the sewage collecting pipe 15, clear water and the like can be injected into the cleaning port 152 to wash the sewage collecting pipe 15, and sewage is discharged from the sewage discharging port 151;
an air inlet pipe 16 is arranged between the tank bodies 11 at the upper parts of the two vertical separation tanks 1 close to the upper end enclosure 13, an air inlet 161 is arranged on the air inlet pipe 16, the air inlet pipe 16 is communicated with the upper parts of the two tank bodies 11, and a certain amount of air is input to promote the flow acceleration of the mixed oil gas to be separated, so that the oil gas filtering effect is improved;
a balance pipe 17 is arranged in the middle of the two tank bodies 11, and a differential pressure transmitter interface 171 (the differential pressure transmitter can be a CS-III differential pressure transmitter produced by Riming Hydraulic company Limited) is arranged on the balance pipe 17; the balance pipe 17 can keep the pressure balance in the two tank bodies 11, and reduce the influence of the pressure difference generated by the mixed oil gas to be separated on the oil level stored in the lower seal head 12;
the balance pipe 17 is preferably further provided with a closable spare connector 172, and the spare connector 172 is in a flange connection mode, keeps a blocking state in normal use and is connected with other components in a flange mode when the balance pipe is required to be started.
Preferably, the end of the oil pipe 113 is provided with a screen.
When the parallel oil separation device is used, the oil gas inlet 111, the oil return port 112 and the gas outlet 131 are respectively connected to relevant interfaces of each compressor of the parallel air conditioning unit, and the air inlet 161 is used for filling air into the tank body 11, so that the fluidity of the entering mixed oil gas is better, the filtering speed is accelerated, the filtering effect is improved, and the filtered gas is discharged from the gas outlet 131; the filtered oil drops and gathers at the lower part of the lower end enclosure 12 under the action of gravity, most of sediments such as impurities and the like sink into the sewage collecting pipe 15, and the oil purity of the oil which flows back through the oil pipe 113 is higher; under special conditions, if the air conditioning unit needs to be maintained, if only one compressor can be started, only one side oil separation device can be started, at the moment, the standby connector 172 can be started to be connected with flowing air, so that the vertical separation tank 1 on the non-working side keeps positive pressure, the pressures in the vertical separation tanks 1 on the two sides keep balance approximately, and the oil at the bottom of the vertical separation tank 1 on the working side can keep a proper liquid level to meet working requirements.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention, the equivalents and substitutions being limited only by the scope of the appended claims.
Claims (6)
1. A parallel oil separation device is characterized by comprising two vertical separation tanks, wherein a tank body of each vertical separation tank is of a cylindrical tubular structure, and a lower end enclosure is arranged at the lower part of each vertical separation tank and welded at the lower part of the tank body; the upper part of the tank body is provided with a detachable upper end enclosure;
a filtering device is arranged in each vertical separation tank, an oil-gas inlet and an oil return port are formed in the lower part of the tank body, and an oil pipe of the oil return port is positioned in the lower end enclosure; the height of the oil gas inlet is higher than that of the oil return port; a liquid level meter hole is also formed in the lower part of the tank body, close to the lower end enclosure;
the top of the upper end enclosure of each vertical separation tank is provided with an air outlet, a pressure gauge connector and an air extraction opening; the upper end enclosure is fixedly connected with the tank body through a flange;
a sewage collecting pipe is arranged between the bottoms of the lower seal heads of the two vertical separation tanks, a sewage draining outlet is formed in the sewage collecting pipe, and the height of the bottom surface of the sewage collecting pipe is lower than that of the tail end of the bottom surface of the lower seal head;
an air inlet pipe is arranged between the tank bodies at the upper parts of the two vertical separation tanks close to the upper end enclosure, an air inlet is arranged on the air inlet pipe, and the air inlet pipe is communicated with the upper parts of the two tank bodies;
and the middle parts of the two vertical separation tanks are provided with balance pipes, and the balance pipes are provided with differential pressure signal transmitter interfaces.
2. A parallel oil separator according to claim 1 wherein said balance pipe is provided with a closeable backup connection, said backup connection being in the form of a flanged connection.
3. A parallel oil separator according to claim 1 wherein the end of said oil pipe is provided with a screen.
4. A parallel oil separator according to claim 1 wherein a gasket seal is provided on the flanged surface of said tank.
5. A parallel oil separator as in claim 1, wherein an upper head lift is provided on the upper head.
6. A parallel oil separator according to claim 1 wherein said dirt collection tube is provided with a purge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262902.3U CN211233484U (en) | 2019-12-17 | 2019-12-17 | Parallel oil separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262902.3U CN211233484U (en) | 2019-12-17 | 2019-12-17 | Parallel oil separator |
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| Publication Number | Publication Date |
|---|---|
| CN211233484U true CN211233484U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922262902.3U Active CN211233484U (en) | 2019-12-17 | 2019-12-17 | Parallel oil separator |
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| Country | Link |
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| CN (1) | CN211233484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606825A (en) * | 2021-08-23 | 2021-11-05 | 珠海格力电器股份有限公司 | Oil separating structure, heat exchanger and air conditioner |
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2019
- 2019-12-17 CN CN201922262902.3U patent/CN211233484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606825A (en) * | 2021-08-23 | 2021-11-05 | 珠海格力电器股份有限公司 | Oil separating structure, heat exchanger and air conditioner |
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