Oil-gas separation device of compressor

Abstract

An oil-gas separation device of a compressor comprises a barrel body and an inner barrel arranged in the barrel body, a cover plate for sealing the top of the barrel body and the top of the inner barrel is arranged at the top of the barrel body, and an oil separation core is arranged in the inner barrel; an oil-gas mixture inlet and an oil outlet are formed in the barrel body, the oil-gas mixture inlet is formed in the upper portion of the barrel body, and an exhaust port is formed in the cover plate; the oil separator is characterized in that a first wire mesh demister is arranged at the bottom of the inner cylinder, a mounting seat matched with the oil separation core is arranged in the inner cylinder and above the first wire mesh demister, and the oil separation core is mounted on the mounting seat. The oil-gas separation device of the compressor is not easy to block the oil separation core, so that the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil gas separation technical field, concretely relates to a compressor's oil gas separation device. BACKGROUND

[0002] When the compressor compresses gas, some oil is also sprayed into the compressor to form an oil gas mixture, in order to ensure the quality of the compressed gas, the oil gas mixture formed in the compressed air is usually separated by an oil gas separation device.

[0003] The utility model discloses a kind of compressor's oil gas separation device, and its structure is as shown in Figure 1 Oil gas mixture is entered into barrel 1a by oil gas mixture inlet 4a in the upper portion of barrel 1a after being discharged at high speed by compressor host, and the oil gas mixture entered into barrel 1a is first separated by cyclone along the inner wall of barrel 1a and the outer wall of inner cylinder 2a, and large oil droplets are preliminarily separated out due to centrifugal force, and are collected in the bottom of barrel 1a under the action of gravity force, then the mixture of small oil droplets and gas is further entered into the oil separation core 3a of inner cylinder 2a from the middle and lower portion of barrel 1a to carry out oil gas separation, and the gas filtered by oil separation core 3a is discharged through exhaust pipe 5a, and small oil droplets are gathered in the bottom of oil separation core 3a and are discharged through the oil outlet in the bottom of barrel 1a.

[0004] However, the existing compressor's oil gas separation device still has the following technical problems: since impurity particles are usually entrained in compressed air, and the impurity particles are retained in the filter layer inner wall of oil separation core 3a after being filtered by oil separation core 3a, the pores of the filter layer of oil separation core 3a are easily blocked, the service life of oil separation core 3a is reduced, and oil separation core 3a needs to be frequently replaced to avoid insufficient filtering capacity of oil separation core 3a or failure of oil separation core 3a, so the maintenance cost is high. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems: provide a kind of compressor's oil gas separation device that oil separation core is not easy to block and reduce maintenance cost.

[0006] The utility model discloses a technical solution is: a compressor's oil -gas separation device, including the barrel body and setting in the inner tube of barrel body, the top of barrel body is equipped with the cover plate of closing barrel body top and inner tube top, be equipped with the oil separation core in the inner tube, be equipped with oil -gas mixture import and oil outlet on the barrel body, oil -gas mixture import sets up in the upper portion of barrel body, be equipped with the exhaust port on the cover plate, the bottom of inner tube is equipped with the first wire mesh demister, be equipped with the mounting seat of adapting oil separation core in the inner tube and be located first wire mesh demister above, oil separation core installs on the mounting seat.

[0007] The utility model discloses a compressor's oil -gas separation device's working principle is as follows:

[0008] After oil -gas mixture is discharged by compressor host high speed, enters into the barrel body from the oil -gas mixture import of barrel body upper portion, and oil -gas mixture first carries out cyclone separation along the inner wall of barrel body and the outer wall of inner tube in the barrel body, and big oil drop is separated out primarily under the action of centrifugal force, and gathers in the bottom of barrel body under the action of gravity, then the mixture of small oil drop and gas further enters into the inner tube from the middle lower portion of barrel body, first carries out the rough separation of oil -gas through the first wire mesh demister of inner tube to reduce impurity particle and effectively relieve oil -gas impact, and then enters into the oil separation core through the mounting seat of inner tube and carries out the fine separation of oil -gas, and the gas after oil separation core separation is discharged through the exhaust port of cover plate, and the oil after oil separation core separation gathers in the bottom of oil separation core and falls to the bottom of barrel body through mounting seat, and the oil liquid gathering in the bottom of barrel body is discharged through oil outlet.

[0009] After adopting above -mentioned structure, the utility model has following advantages:

[0010] The utility model discloses a compressor's oil -gas separation device through the first wire mesh demister of setting under oil separation core, can separate oil -gas in advance, to reduce impurity particle and effectively relieve oil -gas impact, thereby making oil separation core not easy to jam, and can better protect oil separation core, prolongs oil separation core life, and maintenance cost reduces.

[0011] As preferred, the cover plate can be detachably mounted on the top of the barrel body, the inner tube can be detachably mounted in the barrel body, and the first wire mesh demister can be detachably mounted on the bottom of the inner tube. This arrangement makes the cover plate, the inner tube and the first wire mesh demister all detachable, so that the first wire mesh demister in the inner tube can be conveniently cleaned or replaced by detaching the inner tube.

[0012] As preferred, the first wire mesh demister comprises a first upper grid plate, a first lower grid plate, and a first wire mesh block clamped between the first upper grid plate and the first lower grid plate, the first upper grid plate is fixedly connected with the inner cylinder, and the first lower grid plate is detachably connected with the inner cylinder. The detachable first lower grid plate facilitates replacement of the first wire mesh block, but since the detachable connection is more complex than the fixed connection structure, the first upper grid plate that does not need to be removed is fixedly connected, and the structure is simplified.

[0013] As preferred, the bottom of the inner cylinder and on the inner side wall is provided with a first annular flange, the outer peripheral edge of the first lower grid plate is provided with a fixing ring matched with the first annular flange, and the fixing ring of the first lower grid plate is detachably installed below the first annular flange through a first fastener. The detachable connection through the flange is simpler and more stable, and is more convenient to disassemble and assemble.

[0014] As preferred, it further comprises a second annular flange fixedly arranged on the inner side wall of the top of the barrel body and a third annular flange fixedly arranged on the outer side wall of the top of the inner cylinder, the third annular flange of the inner cylinder is detachably installed on the second annular flange of the barrel body through a second fastener, and the cover plate is detachably installed on the third annular flange through a third fastener. The detachable connection through the flange is simple and stable, and is convenient to disassemble and assemble.

[0015] As preferred, it further comprises an exhaust pipe communicated with the exhaust port, and a second wire mesh demister arranged in the exhaust pipe. This arrangement can further separate oil and gas in the terminal exhaust, thereby effectively preventing the exhaust port from spewing oil due to failure of the oil separation core or insufficient filtering capacity of the oil separation core.

[0016] As preferred, one end of the exhaust pipe is detachably installed at the exhaust port of the cover plate, and the second wire mesh demister is detachably installed in the exhaust pipe. The exhaust pipe and the second wire mesh demister are both detachable, which facilitates cleaning or replacement of the second wire mesh demister in the exhaust pipe by detaching the exhaust pipe.

[0017] As preferred, the bottom end of the exhaust pipe is detachably installed at the exhaust port of the cover plate, and the second wire mesh demister comprises a second upper grid plate, a second lower grid plate, and a second wire mesh block clamped between the second upper grid plate and the second lower grid plate, the second lower grid plate is detachably connected with the bottom end of the exhaust pipe, and the second upper grid plate is fixedly connected with the exhaust pipe. The second lower grid plate is detachably connected with the bottom end of the exhaust pipe, thereby facilitating replacement of the second wire mesh block by detaching the second lower grid plate of the bottom end of the exhaust pipe after detaching the exhaust pipe, but since the detachable connection is more complex than the fixed connection structure, the second upper grid plate that does not need to be removed is fixedly connected, and the structure is simplified.

[0018] As preferred, the bottom end of the exhaust pipe and located on the outer side wall is provided with a fourth annular flange, the fourth annular flange of the exhaust pipe is detachably installed on the top of the cover plate through the fourth fastener, and the second lower grid plate is clamped between the fourth annular flange and the cover plate. The detachable connection is realized through the flange, the structure is simpler and more stable, and the disassembly and assembly are more convenient.

[0019] As preferred, the inner side wall of the inner cylinder is further provided with a handle. The setting facilitates taking out the inner cylinder after disassembling the inner cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the oil-gas separation device of the prior art compressor;

[0021] Figure 2 It is a structural schematic view of the oil-gas separation device of the prior art compressor;

[0022] Figure 3 It is a top view of the oil-gas separation device of the prior art compressor;

[0023] Figure 4 It is Figure 3 It is a sectional view along A-A' in the middle;

[0024] Figure 5 It is Figure 4 It is a local enlarged schematic view of B in the middle;

[0025] Figure 6 It is Figure 4 It is a local enlarged schematic view of C in the middle;

[0026] Figure 7 It is Figure 4 It is a local enlarged schematic view of D in the middle;

[0027] Figure 8 It is a structural schematic view of the oil-gas separation device of the prior art compressor after hiding the cover plate and the exhaust pipe;

[0028] In the prior art figure: 1a - barrel body, 2a - inner cylinder, 3a - oil separation core, 4a - oil-gas mixture inlet, 5a - exhaust pipe;

[0029] The utility model discloses a barrel body, 2 - inner tube, 3 - apron, 4 - oil separation core, 5 - oil gas mixture import, 6 - oil outlet, 7 - exhaust port, 8 - first silk screen demister, 9 - mounting seat, 10 - first upper grid, 11 - first lower grid, 12 - first silk screen block, 13 - first annular flange, 14 - fixed ring, 15 - first fastener, 16 - second annular flange, 17 - third annular flange, 18 - second fastener, 19 - third fastener, 20 - exhaust pipe, 21 - second silk screen demister, 22 - second upper grid, 23 - second lower grid, 24 - second silk screen block, 25 - fourth annular flange, 26 - fourth fastener, 27 - handle, 28 - first through hole, 29 - pipe seat, 30 - second through hole, 31 - oil filter hole. DETAILED DESCRIPTION

[0030] The utility model will be further explained in connection with the drawings and in connection with examples.

[0031] Examples:

[0032] As Figures 2-8 The utility model discloses a compressor's oil gas separation device, including barrel body 1 and the inner tube 2 of setting in barrel body 1, the top of barrel body 1 is equipped with the apron 3 of closing barrel body 1 top and the top of inner tube 2, is equipped with oil separation core 4 in inner tube 2, is equipped with oil gas mixture import 5 and oil outlet 6 on barrel body 1, and oil gas mixture import 5 sets up in the upper portion of barrel body 1, is equipped with exhaust port 7 on apron 3, the bottom of inner tube 2 is equipped with first silk screen demister 8, and is equipped with the mounting seat 9 of adapting oil separation core 4 in inner tube 2 and is located first silk screen demister 8 above, and oil separation core 4 installs on mounting seat 9.

[0033] The compressor's oil gas separation device of this example can carry out rough separation to oil gas in advance, reduce impurity particles and effectively relieve oil gas impact by adding first silk screen demister 8 below oil separation core 4, so that oil separation core 4 is not easy to block, and oil separation core 4 can be better protected, the service life of oil separation core 4 is prolonged, and maintenance cost is reduced.

[0034] Apron 3 can be detachably installed at the top of barrel body 1, inner tube 2 can be detachably installed in barrel body 1, and first silk screen demister 8 can be detachably installed at the bottom of inner tube 2. The setting makes apron 3, inner tube 2 and first silk screen demister 8 all be detachable structures, so that first silk screen demister 8 in inner tube 2 can be cleaned or replaced by removing inner tube 2.

[0035] The first wire mesh demister 8 comprises a first upper grid plate 10, a first lower grid plate 11, and a first wire mesh block 12 clamped between the first upper grid plate 10 and the first lower grid plate 11, the first upper grid plate 10 is fixedly connected with the inner cylinder 2, and the first lower grid plate 11 is detachably connected with the inner cylinder 2. The detachable first lower grid plate 11 facilitates replacement of the first wire mesh block 12, but the first upper grid plate 10 that does not need to be removed adopts fixed connection because the detachable connection is more complex than the fixed connection structure, and the structure is simplified.

[0036] A first annular flange 13 is arranged at the bottom of the inner cylinder 2 and on the inner side wall, and a fixing ring 14 is arranged at the outer peripheral edge of the first lower grid plate 11 and matched with the first annular flange 13, and the fixing ring 14 of the first lower grid plate 11 is detachably installed below the first annular flange 13 through a first fastener 15. The detachable connection is realized through the flange, the structure is simpler and more stable, and the disassembly and assembly are more convenient.

[0037] A second annular flange 16 is fixedly arranged on the inner side wall at the top of the barrel body 1, and a third annular flange 17 is fixedly arranged on the outer side wall at the top of the inner cylinder 2, the third annular flange 17 of the inner cylinder 2 is detachably installed on the second annular flange 16 of the barrel body 1 through a second fastener 18, and the cover plate 3 is detachably installed on the third annular flange 17 through a third fastener 19; in the embodiment, the second annular flange 16 is fixed on the barrel body 1 by welding, and the third annular flange 17 is also fixed on the inner cylinder 2 by welding. The detachable connection is realized through the flange, the structure is simple and stable, and the disassembly and assembly are convenient.

[0038] An exhaust pipe 20 is further arranged in communication with the exhaust port 7, and a second wire mesh demister 21 is arranged in the exhaust pipe 20. The arrangement can further separate oil and gas from the terminal exhaust, thereby effectively preventing the oil injection phenomenon of the exhaust port 7 caused by failure of the oil separation core 4 or insufficient filtering capacity of the oil separation core 4.

[0039] One end of the exhaust pipe 20 is detachably installed at the exhaust port 7 of the cover plate 3, and the second wire mesh demister 21 is detachably installed in the exhaust pipe 20. The exhaust pipe 20 and the second wire mesh demister 21 are both detachable structures, which facilitates cleaning or replacement of the second wire mesh demister 21 in the exhaust pipe 20 by detaching the exhaust pipe 20.

[0040] The bottom end of the exhaust pipe 20 is detachably mounted at the exhaust port 7 of the cover plate 3, the second wire mesh demister 21 comprises a second upper grid plate 22, a second lower grid plate 23, and a second wire mesh block 24 clamped between the second upper grid plate 22 and the second lower grid plate 23, the second lower grid plate 23 is detachably connected with the bottom end of the exhaust pipe 20, and the second upper grid plate 22 is fixedly connected with the exhaust pipe 20. The second lower grid plate 23 is detachably connected with the bottom end of the exhaust pipe 20, so that the second wire mesh block 24 can be replaced by detaching the second lower grid plate 23 at the bottom end of the exhaust pipe 20 after the exhaust pipe 20 is detached, but since the detachable connection is more complex than the fixed connection structure, the second upper grid plate 22 which does not need to be detached is fixedly connected, and the structure is simplified.

[0041] The bottom end of the exhaust pipe 20 is detachably mounted at the exhaust port 7 of the cover plate 3, the second wire mesh demister 21 comprises a second upper grid plate 22, a second lower grid plate 23, and a second wire mesh block 24 clamped between the second upper grid plate 22 and the second lower grid plate 23, the second lower grid plate 23 is detachably connected with the bottom end of the exhaust pipe 20, and the second upper grid plate 22 is fixedly connected with the exhaust pipe 20. The second lower grid plate 23 is detachably connected with the bottom end of the exhaust pipe 20, so that the second wire mesh block 24 can be replaced by detaching the second lower grid plate 23 at the bottom end of the exhaust pipe 20 after the exhaust pipe 20 is detached, but since the detachable connection is more complex than the fixed connection structure, the second upper grid plate 22 which does not need to be detached is fixedly connected, and the structure is simplified.

[0042] The inner side wall of the inner cylinder 2 is also provided with a handle 27; in this embodiment, two handles 27 are provided for convenient holding with both hands. This setting facilitates the removal of the inner cylinder 2 after it is detached.

[0043] The oil-gas mixture inlet 5 is tangent to the side wall of the barrel body 1. This setting enables the oil-gas mixture to rotate at high speed into the barrel body 1 for cyclone oil-gas separation.

[0044] The oil outlet 6 is arranged at the lower part of the barrel body 1. This setting makes the oil-gas mixture inlet 5 and the oil outlet 6 be arranged in an up-down distribution, so that the oil liquid can be collected at the bottom of the barrel body 1 by gravity and discharged through the oil outlet 6, and the oil-gas mixture inlet 5 is arranged at the upper part of the barrel body 1, so that the oil-gas mixture entering from above into the barrel body 1 can avoid mixing with the oil droplets falling from above, thereby improving the separation efficiency and effect.

[0045] In this embodiment, the mounting seat 9 of the oil separation core 4 can be used in the prior art, the mounting seat 9 is provided with a first through hole 28 in communication with the oil separation core 4, the first through hole 28 is axially downwardly extended to a pipe seat 29, the two sides of the pipe seat 29 are provided with countercurrent second through holes 30, and the bottom of the pipe seat 29 is provided with a filter hole 31; the oil-gas mixture enters into the mounting seat 9 through the second through holes 30, and then enters into the oil separation core 4 through the first through hole 28 of the mounting seat 9 for oil-gas separation, the gas separated by the oil separation core 4 is discharged through the filter layer of the oil separation core 4, and finally discharged through the exhaust pipe 20 of the cover plate 3, and the oil separated by the oil separation core 4 is deposited at the bottom of the oil separation core 4, and then discharged to the bottom of the barrel body 1 through the filter hole 31 of the mounting seat 9, and the oil liquid collected at the bottom of the barrel body 1 is discharged through the oil outlet 6 of the barrel body 1.

[0046] The working principle of the oil-gas separation device of the compressor of the present embodiment is as follows:

[0047] After the oil-gas mixture is discharged at high speed by the main machine of the compressor, the oil-gas mixture enters the barrel 1 through the oil-gas mixture inlet 5 at the upper part of the barrel 1. The oil-gas mixture entering the barrel 1 is first subjected to cyclone separation along the inner wall of the barrel 1 and the outer wall of the inner cylinder 2. Large oil droplets are preliminarily separated out due to the centrifugal force and are collected at the bottom of the barrel 1 under the action of gravity. Then, the mixture of small oil droplets and gas further enters the inner cylinder 2 from the middle and lower part of the barrel 1. The mixture is first subjected to coarse separation of oil and gas by the first wire mesh demister 8 of the inner cylinder 2 to reduce impurity particles and effectively alleviate the impact of oil and gas. Then, the mixture enters the oil separation core 4 through the first through hole 28 of the mounting seat 9 of the inner cylinder 2 to be subjected to fine separation of oil and gas. The gas separated by the oil separation core 4 is discharged through the gas discharge port 7 of the cover plate 3. The oil separated by the oil separation core 4 is collected at the bottom of the oil separation core 4 and falls to the bottom of the barrel 1 through the oil filter hole 31 of the mounting seat 9. The oil collected at the bottom of the barrel 1 is discharged through the oil outlet 6.

[0048] When the first wire mesh demister 8 needs to be cleaned or replaced, the cover plate 3 is first disassembled, then the inner cylinder 2 is disassembled, and then the inner cylinder 2 is taken out through the lifting handle 27. The first lower grid plate 11 at the bottom of the inner cylinder 2 is disassembled, and the first wire mesh block 12 can be taken out for cleaning or replacement.

[0049] When the second wire mesh demister 21 needs to be cleaned or replaced, the exhaust pipe 20 and the cover plate 3 are disassembled, the first lower grid plate 11 at the bottom end of the exhaust pipe 20 is disassembled, and then the second wire mesh block 24 can be taken out for cleaning or replacement.

Claims

1. A compressor oil-gas separation device, comprising a barrel (1) and an inner cylinder (2) arranged in the barrel (1), a top of the barrel (1) being provided with a cover plate (3) for closing the top of the barrel (1) and the top of the inner cylinder (2), and an oil separation core (4) being arranged in the inner cylinder (2); an oil-gas mixture inlet (5) and an oil outlet (6) are arranged on the barrel (1), the oil-gas mixture inlet (5) is arranged at an upper portion of the barrel (1), and an exhaust port (7) is arranged on the cover plate (3); characterized in that: The bottom of the inner cylinder (2) is provided with a first wire mesh demister (8), the inner cylinder (2) is provided with a mounting seat (9) for the oil separation core (4) above the first wire mesh demister (8), and the oil separation core (4) is mounted on the mounting seat (9). ​ 2. A compressor oil-gas separation device according to claim 1, characterized in that: The cover plate (3) is detachably mounted on the top of the barrel body (1), the inner cylinder (2) is detachably mounted in the barrel body (1), and the first wire mesh demister (8) is detachably mounted on the bottom of the inner cylinder (2).

3. A compressor oil-gas separation device according to claim 2, characterized in that: The first wire mesh demister (8) comprises a first upper grid plate (10), a first lower grid plate (11), and a first wire mesh block (12) clamped between the first upper grid plate (10) and the first lower grid plate (11), the first upper grid plate (10) is fixedly connected with the inner cylinder (2), and the first lower grid plate (11) is detachably connected with the inner cylinder (2).

4. A compressor oil-gas separation device according to claim 3, characterized in that: The bottom of the inner cylinder (2) is provided with a first ring-shaped flange (13) on the inner side wall, the outer peripheral edge of the first lower grid plate (11) is provided with a fixing ring (14) matched with the first ring-shaped flange (13), and the fixing ring (14) of the first lower grid plate (11) is detachably mounted below the first ring-shaped flange (13) through a first fastener (15).

5. The oil and gas separating device of claim 2, wherein: A second ring-shaped flange (16) fixedly arranged on the inner side wall of the top of the barrel body (1) and a third ring-shaped flange (17) fixedly arranged on the outer side wall of the top of the inner cylinder (2) are further included, the third ring-shaped flange (17) of the inner cylinder (2) is detachably mounted on the second ring-shaped flange (16) of the barrel body (1) through a second fastener (18), and the cover plate (3) is detachably mounted on the third ring-shaped flange (17) through a third fastener (19).

6. The oil and gas separating device of claim 1, wherein: An exhaust pipe (20) in communication with the exhaust port (7) is further included, and a second wire mesh demister (21) is arranged in the exhaust pipe (20).

7. A compressor oil-gas separation device according to claim 6, characterized in that: One end of the exhaust pipe (20) is detachably mounted at the exhaust port (7) of the cover plate (3), and the second wire mesh demister (21) is detachably mounted in the exhaust pipe (20).

8. A compressor oil-gas separation device according to claim 7, characterized in that: The bottom end of the exhaust pipe (20) is detachably mounted at the exhaust port (7) of the cover plate (3), the second wire mesh demister (21) comprises a second upper grid plate (22), a second lower grid plate (23), and a second wire mesh block (24) clamped between the second upper grid plate (22) and the second lower grid plate (23), the second lower grid plate (23) is detachably connected with the bottom end of the exhaust pipe (20), and the second upper grid plate (22) is fixedly connected with the exhaust pipe (20).

9. A compressor oil-gas separation device according to claim 8, characterized in that: The bottom end of the exhaust pipe (20) is provided with a fourth ring-shaped flange (25) on the outer side wall, the fourth ring-shaped flange (25) of the exhaust pipe (20) is detachably mounted on the top of the cover plate (3) through a fourth fastener (26), and the second lower grid plate (23) is clamped between the fourth ring-shaped flange (25) and the cover plate (3).

10. The oil and gas separating device of a compressor according to claim 2, characterized in that: The inner side wall of the inner cylinder (2) is further provided with a handle (27).

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