CN216044424U - Screw air compressor and oil-gas separation device thereof - Google Patents
Screw air compressor and oil-gas separation device thereof Download PDFInfo
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- CN216044424U CN216044424U CN202122182201.6U CN202122182201U CN216044424U CN 216044424 U CN216044424 U CN 216044424U CN 202122182201 U CN202122182201 U CN 202122182201U CN 216044424 U CN216044424 U CN 216044424U
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Abstract
The utility model relates to the field of air compressors, in particular to a screw air compressor and an oil-gas separation device thereof, which comprise an oil-gas barrel, an air inlet pipe, an air outlet pipe, a valve body, an external oil core and an oil filter; the oil gas barrel comprises an outer barrel and an inner barrel, the outer barrel is of a closed structure, the inner barrel is positioned on the upper side of the inner part of the outer barrel, an annular area is formed between the outer barrel and the inner barrel, and an opening is formed in the lower part of the inner barrel; the upper part of the outer barrel is connected with an air inlet pipe, and the outlet of the air inlet pipe is connected with the annular area; the middle part of outer bucket is provided with the outlet duct, and the inner of outlet duct passes the opening and extends to the inside of interior bucket, and the outer end of outlet duct is provided with the valve body, is provided with external oil content core and oil filter on the valve body side by side. Form annular region between the outer bucket of this patent and the interior bucket, the intake pipe directly lets in the annular region with oil-gas mixture, is favorable to improving the oil-gas separation effect, and external oil content core and oil filter install on the valve body side by side, are convenient for install and change, are favorable to saving the time of maintenance.
Description
Technical Field
The utility model relates to the field of air compressors, in particular to a screw air compressor and an oil-gas separation device thereof.
Background
In screw compressor, generally include oil gas bucket, external oil content core and oily filter, the gaseous preliminary oil-gas separation of oil gas bucket of first passing through after the air compressor machine compression, then form clean air after the external oil content core carries out the essence and separates. And lubricating oil in the compressor is filtered by the oil filter and then is introduced into the compressor joint again for recycling. But current oil gas bucket is not good to oil-gas mixture separation effect, and external oil content core and oil filter part equipment lead to the installation with change inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide a screw air compressor and an oil-gas separation device thereof, which are provided with an inner barrel and an outer barrel to improve the oil-gas separation effect. External oil core and oil filter install on the valve body side by side, are convenient for install and change, are favorable to saving the time of maintenance.
For the purpose of the utility model, the following technical scheme is adopted for implementation:
an oil-gas separation device for a screw air compressor comprises an oil-gas barrel, an air inlet pipe, an air outlet pipe, a valve body, an external oil core and an oil filter; the oil gas barrel comprises an outer barrel and an inner barrel, the outer barrel is of a closed structure, the inner barrel is positioned on the upper side of the inner part of the outer barrel, an annular area is formed between the outer barrel and the inner barrel, and an opening is formed in the lower part of the inner barrel; the upper part of the outer barrel is connected with an air inlet pipe, and the outlet of the air inlet pipe is connected with the annular area; the middle part of outer bucket is provided with the outlet duct, and the inner of outlet duct passes the opening and extends to the inside of interior bucket, and the outer end of outlet duct is provided with the valve body, is provided with external oil content core and oil filter on the valve body side by side.
Preferably, the bottom of the oil and gas barrel is provided with a support frame.
Preferably, the bottom of the valve body is provided with a first air inlet, and an inner cavity communicated with the first air inlet is formed in the valve body; the top of the valve body is provided with an oil separating seat and an oil filtering seat, the lower part of the oil separating seat is provided with a second air inlet communicated with the inner cavity, the middle part of the oil separating seat is provided with a first connecting pipe extending upwards, and an annular first cavity is formed between the first connecting pipe and the inner wall of the oil separating seat; the lower part of the first connecting pipe is connected with an air outlet through a pipeline, and the air outlet is positioned on the front side of the valve body; the external oil core is arranged on the oil sub-seat and comprises an oil core shell and an oil core filter material, a first annular plate is arranged at the bottom of the oil core shell, the upper part of the first cavity is sealed by the first annular plate, a plurality of first through holes which penetrate through the first annular plate from top to bottom are uniformly formed in the circumferential direction of the first annular plate, a tubular oil core filter material is vertically arranged above the first annular plate, the outer wall of the oil core filter material is located in an area within the first through holes, and the oil core filter material is located outside the first connecting pipe;
a second connecting pipe extending upwards is arranged in the middle of the oil filter base, an annular second cavity is formed between the second connecting pipe and the inner wall of the oil filter base, and a lubricating oil inlet communicated with the second cavity is formed in the outer side of the oil filter base; a lubricating oil outlet communicated with the outside is formed in the second connecting pipe; the oil filter is arranged on the oil filter base and comprises a filter shell and filter paper, a second annular plate is arranged at the bottom of the filter shell and seals the upper part of the second chamber, a plurality of second through holes which penetrate through the second annular plate up and down are formed in the circumferential direction of the second annular plate, tubular filter paper is vertically arranged above the second annular plate, and the outer wall of the filter paper is located in the area within the second through holes; the filter paper is positioned outside the second connecting pipe.
Preferably, a secondary oil return port, a discharge port, a pressure sensor interface and a safety valve interface which are communicated with the inner cavity are arranged on the rear side of the valve body.
Preferably, the middle part of the valve body is provided with a fixed seat which is fixedly connected with the end part of the air outlet pipe.
Preferably, the oil core filter is an HV filter.
The utility model provides a screw compressor machine, this air compressor machine adopts foretell oil-gas separation device.
In conclusion, the oil-gas separator has the advantages that an annular area is formed between the outer barrel and the inner barrel, the air inlet pipe directly leads the oil-gas mixture into the annular area, oil in the oil-gas mixture is thrown onto the inner wall of the outer barrel under the action of centrifugal force, oil-gas separation is achieved, the oil-gas separation effect is improved, the primarily separated oil-gas mixture enters the external oil core through the air outlet pipe and is filtered again, and the air purity is guaranteed. External oil core and oil filter install on the valve body side by side, are convenient for install and change, are favorable to saving the time of maintenance.
Drawings
Fig. 1 is a schematic structural diagram of an oil-gas separation device.
Fig. 2 is a sectional view of the oil and gas barrel, the gas inlet pipe and the gas outlet pipe.
Fig. 3 is a schematic structural view of a valve body, an external oil core and the front surface of an oil filter.
Fig. 4 is a schematic structural view of the valve body, the external oil core and the back of the oil filter.
Fig. 5 is a schematic structural view of the valve body.
FIG. 6 is a cross-sectional view of a valve body, an external oil wick, and an oil filter.
Fig. 7 is a schematic structural view of an external oil core and an oil filter.
Detailed Description
As shown in fig. 1 to 2, an oil-gas separation device for a screw air compressor comprises an oil-gas barrel 5, an air inlet pipe 6, an air outlet pipe 7, a valve body 1, an external oil core 2 and an oil filter 3. The bottom of the oil gas barrel 5 is provided with a support frame 53. The oil gas barrel 5 comprises an outer barrel 51 and an inner barrel 52, wherein the outer barrel 51 is of a closed structure, the inner barrel 52 is positioned at the inner upper side of the outer barrel 51, an annular area is formed between the outer barrel 51 and the inner barrel 52, and the lower part of the inner barrel 52 is provided with an opening 521. An air inlet pipe 6 is connected to an upper portion of the outer tub 51, and an outlet of the air inlet pipe 6 is connected to the annular region. An air outlet pipe 7 is arranged in the middle of the outer barrel 51, the inner end of the air outlet pipe 7 penetrates through the opening 521 and extends into the inner barrel 52, a valve body 1 is arranged at the outer end of the air outlet pipe 7, and an external oil core 2 and an external oil filter 3 are arranged on the valve body 1 side by side.
When the device is used, an oil-gas mixture enters the oil-gas barrel 5 along the air inlet pipe 6, under the action of an annular region between the outer barrel 51 and the inner barrel 52, a large amount of oil in the oil-gas mixture is attached to the inner wall of the outer barrel 51 and flows to the bottom of the oil-gas barrel 5 along the inner wall of the outer barrel 51, a small amount of oil enters the opening 521 along with air downwards and moves in the valve body 1 along the air outlet pipe 7, and then enters the external oil core 2 to further filter the oil-gas mixture.
Above-mentioned device's advantage is that form annular region between outer bucket 51 and the interior bucket 52, intake pipe 6 directly lets in the annular region with oil-gas mixture, and under the effect of centrifugal force, on the inner wall of outer bucket 51 was got rid of to oil in the oil-gas mixture, realize oil-gas separation, be favorable to improving the oil-gas separation effect, the oil-gas mixture after the initial separation passes through outlet duct 7 and gets into external oil content core 2, filters once more, guarantees the purity of air.
As shown in fig. 3 to 7, a fixing seat 4 is provided in the middle of the valve body 1, and the valve body 1 is fixed at the end of the air outlet pipe 7 through the fixing seat 4. The bottom of the valve body 1 is provided with a first air inlet 11, and the first air inlet 11 is used for being connected with an outlet of the air outlet pipe 7. An inner cavity 12 communicated with the first air inlet 11 is arranged inside the valve body 1. The top of the valve body 1 is provided with an oil separating seat 13 and an oil filtering seat 14, the lower part of the oil separating seat 13 is provided with a second air inlet 131 communicated with the inner cavity 12, the middle part of the oil separating seat 13 is provided with a first connecting pipe 132 extending upwards, and an annular first chamber 133 is formed between the first connecting pipe 132 and the inner wall of the oil separating seat 13. The lower portion of the first connection pipe 132 is connected to an air outlet 15 through a pipe, the air outlet 15 is located at the front side of the valve body 1, and the air outlet 15 is used for discharging filtered pure air.
The external oil core 2 is arranged on the oil seat 13, the external oil core 2 comprises an oil core housing 21 and an oil core filtering material 22, a first annular plate 211 is arranged at the bottom of the oil core housing 21, the first annular plate 211 seals the upper part of the first cavity 133, a plurality of first through holes 2111 penetrating up and down are uniformly formed in the circumferential direction of the first annular plate 211, and gas in the first cavity 133 enters the internal part of the external oil core 2 through the first through holes 2111. The tubular oil core filtering material 22 is vertically arranged above the first annular plate 211, the outer wall of the oil core filtering material 22 is located in an area within the first through hole 2111, and the oil core filtering material 22 is located outside the first connecting pipe 132, so that gas located in the first cavity 133 can enter the first connecting pipe 132 only after being filtered by the oil core filtering material 22. Preferably, the oil core filter 22 is an HV filter.
During oil-gas separation, the oil-gas mixture passes through first air inlet 11 and gets into in inner chamber 12, then gets into first cavity 133 through second air inlet 131, and inside oil-gas mixture rebound passed first through-hole 2111 and gets into external oil core 2, and air among the oil-gas mixture passed oil core filter media 22, gets into oil core filter media 22's inside, and oil is kept off in oil core filter media 22 outside simultaneously, and later pure air gets into in first connecting pipe 132 to finally follow gas outlet 15 and discharge.
The middle of the oil filter base 14 is provided with a second connecting pipe 141 extending upward, an annular second chamber 142 is formed between the second connecting pipe 141 and the inner wall of the oil filter base 14, and the outer side of the oil filter base 14 is provided with a lubricating oil inlet 143 communicated with the second chamber 142. The second connection pipe 141 is provided inside with a lubricant outlet 144 communicating with the outside. The oil filter 3 is arranged on the oil filter base 14, the oil filter 3 comprises a filter housing 31 and filter paper 32, a second annular plate 311 is arranged at the bottom of the filter housing 31, the second annular plate 311 seals the upper part of the second chamber 142, a plurality of second through holes 3111 penetrating up and down are formed in the circumferential direction of the second annular plate 311, tubular filter paper 32 is vertically arranged above the second annular plate 311, and the outer wall of the filter paper 32 is located in the area within the second through holes 3111. The filter paper 32 is positioned outside the second connection pipe 141.
When the lubricating oil is filtered, the lubricating oil enters the second chamber 142 through the lubricating oil inlet 143, and then enters the inside of the oil filter 3 through the second through hole 3111, the lubricating oil enters the inside of the filter paper 32 after being filtered by the filter paper 32, impurities in the lubricating oil are blocked outside the filter paper 32, and the internal lubricating oil flows along the second connecting pipe 141, finally flows out from the lubricating oil outlet 144, and is supplied to the air compressor main body for use.
The rear side of the valve body 1 is provided with a secondary oil return port 16, a discharge port 17, a pressure sensor interface 18 and a safety valve interface 19 which are communicated with the inner cavity 12.
The utility model provides a screw compressor machine, this air compressor machine adopts the oil-gas separation device who states.
Claims (7)
1. An oil-gas separation device for a screw air compressor is characterized by comprising an oil-gas barrel (5), an air inlet pipe (6), an air outlet pipe (7), a valve body (1), an external oil core (2) and an oil filter (3); the oil-gas barrel (5) comprises an outer barrel (51) and an inner barrel (52), the outer barrel (51) is of a closed structure, the inner barrel (52) is positioned on the upper side of the inner part of the outer barrel (51), an annular area is formed between the outer barrel (51) and the inner barrel (52), and an opening (521) is formed in the lower part of the inner barrel (52); the upper part of the outer barrel (51) is connected with an air inlet pipe (6), and the outlet of the air inlet pipe (6) is connected with the annular area; an air outlet pipe (7) is arranged in the middle of the outer barrel (51), the inner end of the air outlet pipe (7) penetrates through the opening (521) and extends into the inner barrel (52), a valve body (1) is arranged at the outer end of the air outlet pipe (7), and an external oil core (2) and an oil filter (3) are arranged on the valve body (1) side by side.
2. The oil-gas separation device for the screw air compressor as claimed in claim 1, wherein a support frame (53) is arranged at the bottom of the oil-gas barrel (5).
3. The oil-gas separation device for the screw air compressor is characterized in that a first air inlet (11) is formed in the bottom of the valve body (1), and an inner cavity (12) communicated with the first air inlet (11) is formed in the valve body (1); an oil separating seat (13) and an oil filtering seat (14) are arranged at the top of the valve body (1), a second air inlet (131) communicated with the inner cavity (12) is arranged at the lower part of the oil separating seat (13), a first connecting pipe (132) extending upwards is arranged in the middle of the oil separating seat (13), and an annular first cavity (133) is formed between the first connecting pipe (132) and the inner wall of the oil separating seat (13); the lower part of the first connecting pipe (132) is connected with an air outlet (15) through a pipeline, and the air outlet (15) is positioned on the front side of the valve body (1); the external oil core (2) is arranged on the oil sub-seat (13), the external oil core (2) comprises an oil core shell (21) and an oil core filtering material (22), a first annular plate (211) is arranged at the bottom of the oil core shell (21), the upper portion of a first cavity (133) is sealed by the first annular plate (211), a plurality of first through holes (2111) which penetrate through the first annular plate from top to bottom are uniformly formed in the circumferential direction of the first annular plate (211), a tubular oil core filtering material (22) is vertically arranged above the first annular plate (211), the outer wall of the oil core filtering material (22) is located in an area within the first through holes (2111), and the oil core filtering material (22) is located outside the first connecting pipe (132);
a second connecting pipe (141) extending upwards is arranged in the middle of the oil filtering seat (14), an annular second cavity (142) is formed between the second connecting pipe (141) and the inner wall of the oil filtering seat (14), and a lubricating oil inlet (143) communicated with the second cavity (142) is arranged on the outer side of the oil filtering seat (14); a lubricating oil outlet (144) communicated with the outside is arranged in the second connecting pipe (141); the oil filter (3) is arranged on the oil filter base (14), the oil filter (3) comprises a filter shell (31) and filter paper (32), a second annular plate (311) is arranged at the bottom of the filter shell (31), the upper portion of the second chamber (142) is sealed by the second annular plate (311), a plurality of second through holes (3111) which penetrate through the second annular plate (311) up and down are formed in the circumferential direction of the second annular plate (311), tubular filter paper (32) is vertically arranged above the second annular plate (311), and the outer wall of the filter paper (32) is located in an area within the second through holes (3111); the filter paper (32) is located outside the second connection pipe (141).
4. The oil-gas separation device for the screw air compressor is characterized in that a secondary oil return port (16), a discharge port (17), a pressure sensor interface (18) and a safety valve interface (19) which are communicated with the inner cavity (12) are arranged on the rear side of the valve body (1).
5. The oil-gas separation device for the screw air compressor as claimed in claim 1, wherein a fixing seat (4) is arranged in the middle of the valve body (1), and the fixing seat (4) is fixedly connected to the end of the air outlet pipe (7).
6. The oil-gas separation device for the screw air compressor as claimed in claim 3, wherein the oil core filter (22) is an HV filter.
7. A screw air compressor is characterized in that the air compressor adopts the oil-gas separation device as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122182201.6U CN216044424U (en) | 2021-09-09 | 2021-09-09 | Screw air compressor and oil-gas separation device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122182201.6U CN216044424U (en) | 2021-09-09 | 2021-09-09 | Screw air compressor and oil-gas separation device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216044424U true CN216044424U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122182201.6U Active CN216044424U (en) | 2021-09-09 | 2021-09-09 | Screw air compressor and oil-gas separation device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216044424U (en) |
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2021
- 2021-09-09 CN CN202122182201.6U patent/CN216044424U/en active Active
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