Multi-stage oil-gas separator applied to process oil injection screw compressor

Abstract

The utility model discloses a multistage oil-gas separator applied to a process oil injection screw compressor, which belongs to the technical field of oil-gas separation, and comprises an oil separation cylinder, one side of the oil separation cylinder is communicated with a gas inlet pipe, the top of one side of the oil separation cylinder is provided with a fine separation filter element seat, and a secondary separation mechanism is arranged in the oil separation cylinder; the secondary separation mechanism comprises a glass fiber filter element, a filter element fixing flange and a cyclone cylinder, the glass fiber filter element is arranged in the cyclone cylinder, a filter element mounting flange is fixedly mounted at the top of the glass fiber filter element, the filter element mounting flange is mounted at the top of the cyclone cylinder, and the cyclone cylinder is fixedly mounted in the filter element fixing flange; a sealing gasket is fixedly mounted at the bottom of the filter element mounting flange and movably propped against the top of the filter element fixing flange. Through the arrangement of the gas inlet pipe, the oil separation cylinder, the secondary separation mechanism and the fine separation filter element seat, multi-stage separation of oil and gas can be realized, and the separation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil and gas separation technical field especially relates to a kind of multistage oil-gas separators applied to process oil injection screw compressor. BACKGROUND

[0002] With the continuous acceleration of industrialization, the use of fossil fuels such as natural gas and oil has increased significantly, and in the process of exploitation, processing and transportation, gas often contains impurity droplets, which affects production efficiency and may cause equipment damage. Therefore, efficient and reliable gas purification equipment has become an indispensable part of industrial production. As a device that can effectively separate impurity droplets in gas, multistage oil-gas separators have received widespread attention.

[0003] Traditional oil-gas two-phase separation methods have low efficiency and high cost, and other problems; therefore, we propose a multistage oil-gas separator applied to process oil injection screw compressor to solve this problem. INVENTION CONTENTS

[0004] The utility model aims to provide a kind of multistage oil-gas separators applied to process oil injection screw compressor to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A multistage oil-gas separator applied to process oil injection screw compressor, comprising: an oil separation cylinder, an air inlet pipe is connected to one side of the oil separation cylinder, and a fine separation filter element seat is provided at the top of one side of the oil separation cylinder, and a two-stage separation mechanism is provided inside the oil separation cylinder;

[0007] The two-stage separation mechanism includes a glass fiber filter element, a filter element fixing flange, and a cyclone cylinder, the glass fiber filter element is arranged inside the cyclone cylinder, a filter element mounting flange is fixedly installed at the top of the glass fiber filter element, the filter element mounting flange is installed at the top of the cyclone cylinder, and the cyclone cylinder is fixedly installed in the filter element fixing flange.

[0008] Preferably, a sealing gasket is fixedly installed at the bottom of the filter element mounting flange, the sealing gasket is in sliding contact with the top of the filter element fixing flange, a positioning bolt is threadedly connected to the top of the filter element fixing flange, a bolt head is integrally formed at the top end of the positioning bolt, and the bolt head is in sliding contact with the top of the filter element mounting flange.

[0009] Preferably, an integral filter element is arranged inside the fine separation filter element seat, and an air outlet elbow is connected to the bottom of the fine separation filter element seat, the other end of the air outlet elbow is in communication with the oil separation cylinder.

[0010] Preferably, the other side of the oil separation cylinder body is communicated with an oil suction pipe, and the bottom of the oil separation cylinder body is communicated with a blowdown pipe, and the other end of the blowdown pipe is provided with a baffle flange.

[0011] Preferably, the top of the oil separation cylinder body is fixedly connected with a flat cover flange, and the top of the flat cover flange is provided with an oil separation flat cover through fixing bolts.

[0012] Preferably, the bottom of the oil separation flat cover is fixedly provided with an O-shaped ring, the top of the flat cover flange is provided with an annular sealing groove, and the O-shaped ring is movably inserted into the annular sealing groove.

[0013] Preferably, the outside top of the flat cover flange is fixedly connected with a lower connecting plate, the outside of the oil separation flat cover is fixedly connected with an upper connecting plate, the inside of the upper connecting plate and the lower connecting plate is movably inserted with a rotating bolt, and the outside of the rotating bolt is threadedly sleeved with a fastening nut.

[0014] Preferably, the outside of the oil separation cylinder body is fixedly connected with a plurality of supporting legs.

[0015] Preferably, the air inlet pipe is tangent to the inner wall of the oil separation cylinder body.

[0016] In the utility model, the first stage separation of oil gas is realized through the cooperation of the air inlet pipe and the inner wall of the oil separation cylinder body, the second stage separation of oil gas is realized through the glass fiber filter element, and the third stage separation of oil gas is realized through the fine separation filter element seat, so that the oil gas separation effect and the separation completeness are improved.

[0017] In the utility model, the cooperation of the fixing bolt, the rotating bolt, the positioning bolt and the oil separation flat cover can realize the replacement of the filter element conveniently while ensuring the sealing, and the use efficiency is improved. ACCURACY

[0018] Figure 1 A three-dimensional structure schematic view of the multi-stage oil-gas separator applied to the process oil-injected screw compressor is provided for the utility model;

[0019] Figure 2 A sectional structure schematic view of the multi-stage oil-gas separator applied to the process oil-injected screw compressor is provided for the utility model;

[0020] Figure 3 A Figure 2 A partial enlarged view of part A;

[0021] Figure 4 A Figure 2 A partial enlarged view of part B.

[0022] In the figure: 1, oil separation cylinder; 101, air outlet elbow; 102, support leg; 103, air inlet pipe; 104, flat cover flange; 105, blowdown pipe; 106, baffle flange; 107, oil suction pipe; 2, fine separation filter element seat; 201, integral filter element; 3, oil separation flat cover; 301, fixing bolt; 302, O-ring; 4, glass fiber filter element; 401, filter element mounting flange; 402, cyclone cylinder; 403, filter element fixing flange; 404, sealing gasket; 405, positioning bolt; 5, fastening nut; 6, lower connecting plate; 7, upper connecting plate; 8, rotating bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Reference Figures 1-4 A multi-stage oil-gas separator applied to a process oil injection screw compressor, comprising: an oil separation cylinder 1, an air inlet pipe 103 is communicated to one side of the oil separation cylinder 1, and a fine separation filter element seat 2 is arranged at the top of one side of the oil separation cylinder 1, and a two-stage separation mechanism is arranged in the oil separation cylinder 1.

[0025] The two-stage separation mechanism comprises a glass fiber filter element 4, a filter element fixing flange 403 and a cyclone cylinder 402, the glass fiber filter element 4 is arranged in the interior of the cyclone cylinder 402, the top of the glass fiber filter element 4 is fixedly provided with a filter element mounting flange 401, the filter element mounting flange 401 is arranged on the top of the cyclone cylinder 402, and the cyclone cylinder 402 is fixedly arranged in the filter element fixing flange 403.

[0026] In the embodiment, the bottom of the filter element mounting flange 401 is fixedly provided with a sealing gasket 404, the sealing gasket 404 is movably abutted against the top of the filter element fixing flange 403, the top of the filter element fixing flange 403 is threadedly connected with a positioning bolt 405, the top end of the positioning bolt 405 is integrally formed with a bolt head, and the bolt head is movably abutted against the top of the filter element mounting flange 401.

[0027] In the embodiment, the interior of the fine separation filter element seat 2 is provided with an integral filter element 201, the bottom of the fine separation filter element seat 2 is communicated with an air outlet elbow 101, and the other end of the air outlet elbow 101 is communicated with the oil separation cylinder 1.

[0028] In the embodiment, the other side of the oil separation cylinder 1 is communicated with an oil suction pipe 107, the bottom of the oil separation cylinder 1 is communicated with a blowdown pipe 105, the other end of the blowdown pipe 105 is provided with a baffle flange 106, and the baffle flange 106 is used for sealing the oil separation cylinder 1.

[0029] In the embodiment, the top of the oil separation cylinder body 1 is fixedly connected with a flat cover flange 104, and the top of the flat cover flange 104 is installed with an oil separation flat cover 3 through a fixing bolt 301.

[0030] In the embodiment, the bottom of the oil separation flat cover 3 is fixedly installed with an O-ring 302, and the top of the flat cover flange 104 is provided with an annular sealing groove, and the O-ring 302 is movably inserted into the annular sealing groove.

[0031] In the embodiment, the outside top of the flat cover flange 104 is fixedly connected with a lower connecting plate 6, and the outside of the oil separation flat cover 3 is fixedly connected with an upper connecting plate 7, and the inside of the upper connecting plate 7 and the lower connecting plate 6 is movably inserted with a rotating bolt 8, and the outside of the rotating bolt 8 is threadedly sleeved with a fastening nut 5.

[0032] In the embodiment, the outside of the oil separation cylinder body 1 is fixedly connected with a plurality of supporting legs 102.

[0033] In the embodiment, the gas inlet pipe 103 is tangent to the inner wall of the oil separation cylinder body 1, so that the gas entering the oil separation cylinder body 1 forms a spiral.

[0034] In the embodiment, in use, the oil gas is introduced into the oil separation cylinder body 1 through the gas inlet pipe 103, and due to the tangency of the gas inlet pipe 103 to the inner wall of the oil separation cylinder body 1, the oil gas entering the inside of the oil separation cylinder body 1 spirals downward along the inner wall of the oil separation cylinder body 1, so as to realize the first stage separation of the oil under the action of gravity and centrifugal force, at this time, most of the oil has been separated by the centrifugal force and stored at the inside bottom of the oil separation cylinder body 1, then the remaining oil gas passes through the glass fiber filter element 4 to condense the oil mist into oil droplets, realizing the second stage separation of the oil gas, at this time, the glass fiber filter element 4 can separate most of the oil remaining in the remaining oil gas, and then the oil gas enters the fine separation filter element seat 2 through the gas outlet elbow 101, and the third stage separation of the oil gas is carried out through the integral filter element 201, so as to separate a small amount of oil remaining in the oil gas, the oil separation flat cover 3 is then released by unscrewing the fixing bolt 301, and then the oil separation flat cover 3 is rotated around the rotating bolt 8, so as to open it more labor-saving, and then the positioning bolt 405 is unscrewed to release the fixation of the glass fiber filter element 4, so as to remove the glass fiber filter element 4 from above, thereby facilitating replacement.

[0035] The above has carried out the detailed introduction to the multi-stage oil-gas separator applied to the process oil injection screw compressor provided by the utility model. The principle and implementation mode of the utility model are described in the article by applying specific embodiments, and the above embodiment description is only used for helping to understand the method and core idea of the utility model. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A multi-stage oil-gas separator for use in process oil-injected screw compressors, characterized in that, include: An oil separator cylinder (1) is provided with an air inlet pipe (103) connected to one side of the oil separator cylinder (1), and a fine separation filter element seat (2) is provided on the top of one side of the oil separator cylinder (1). A two-stage separation mechanism is provided inside the oil separator cylinder (1). The secondary separation mechanism includes a glass fiber filter element (4), a filter element fixing flange (403), and a cyclone body (402). The glass fiber filter element (4) is disposed inside the cyclone body (402), and a filter element mounting flange (401) is fixedly installed on the top of the glass fiber filter element (4). The filter element mounting flange (401) is installed on the top of the cyclone body (402), and the cyclone body (402) is fixedly installed inside the filter element fixing flange (403).

2. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 1, characterized in that, A sealing gasket (404) is fixedly installed at the bottom of the filter element mounting flange (401). The sealing gasket (404) is movably abutted against the top of the filter element fixing flange (403). A positioning bolt (405) is threadedly connected to the top of the filter element fixing flange (403). The top of the positioning bolt (405) is integrally formed with a bolt head, which is movably abutted against the top of the filter element mounting flange (401).

3. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 1, characterized in that, The fine separation filter element seat (2) is provided with an integral filter element (201) inside, and the bottom of the fine separation filter element seat (2) is connected to an air outlet bend (101), the other end of which is connected to the oil separator cylinder (1).

4. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 1, characterized in that, The other side of the oil separator cylinder (1) is connected to an oil suction pipe (107), and the bottom of the oil separator cylinder (1) is connected to a drain pipe (105), and the other end of the drain pipe (105) is provided with a blind flange (106).

5. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 1, characterized in that, The top of the oil separator cylinder (1) is fixedly connected to a flat cover flange (104), and the top of the flat cover flange (104) is fitted with an oil separator flat cover (3) by fixing bolts (301).

6. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 5, characterized in that, An O-ring (302) is fixedly installed at the bottom of the oil separator flat cover (3), and an annular sealing groove is provided at the top of the flat cover flange (104). The O-ring (302) is movably inserted into the annular sealing groove.

7. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 6, characterized in that, The outer top of the flat cover flange (104) is fixedly connected to a lower connecting plate (6), and the outer side of the oil separator flat cover (3) is fixedly connected to an upper connecting plate (7). The upper connecting plate (7) and the lower connecting plate (6) are movably inserted with rotating bolts (8), and the outer side of the rotating bolts (8) is threaded with fastening nuts (5).

8. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 1, characterized in that, Multiple support legs (102) are fixedly connected to the outside of the oil separator cylinder (1).

9. A multi-stage oil-gas separator for use in a process oil-injected screw compressor according to claim 1, characterized in that, The air intake pipe (103) is tangent to the inner wall of the oil separator cylinder (1).

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