Vacuum pump special for oil gas recovery

Abstract

The utility model discloses a special vacuum pump for oil and gas recovery, and relates to the technical field of vacuum pumps, in particular to a special vacuum pump for oil and gas recovery, which comprises a vacuum pump and is used for vacuumizing treatment, and the vacuum pump comprises a main body assembly and a vacuum pump assembly, the air inlet assembly comprises an air inlet head fixed to the top of the top cover, a sleeve head integrally formed on the outer edge of the upper end of the air inlet head, an air head integrally formed in the center of the upper end of the air inlet head, an annular plate arranged on the air head in a sleeving and sliding mode, four guide frames fixed to the outer edge of the bottom of the annular plate and distributed at equal intervals, and lock heads arranged on the guide frames in a sliding mode through internal inclined holes. The lock head and the sleeve head are slidably installed in a penetrating mode. The connector assembly comprises an air inlet connector installed at the upper end of the air inlet head and a plug integrally formed at the lower end of the air inlet connector. According to the air inlet assembly, the connector assembly is fixed from the inner wall and the outer wall at the same time, the connecting strength and the sealing performance are improved, and disassembly and assembly convenience is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a special vacuum pump for oil and gas recovery. Background Art

[0002] Gas station oil and gas recovery refers to the process of collecting volatilized oil and gas during the process of loading and unloading gasoline and refueling vehicles, reducing oil and gas pollution, or converting oil and gas from gas to liquid and back into gasoline to achieve the purpose of recycling;

[0003] After checking the publication number: CN212055121U, an oil and gas recovery vacuum pump is disclosed. This technology discloses "an oil and gas recovery vacuum pump, which aims to solve the technical problems of low compression ratio and unreasonable position of air inlet and air outlet of existing oil and gas recovery vacuum pumps. It includes a pump body and a rotor arranged therein, and the rotor and the pump body have different axes; a plurality of sliding vanes that can rotate with the rotor are arranged along the circumferential direction of the rotor axis, and the sides of the sliding vanes are closely attached to the pump body; the pump body is connected to a pump cover, and the pump cover is provided with an air inlet, an air outlet and a pressure relief valve assembly" and other technical solutions, with "multi-stage compression is adopted to reduce power consumption and increase air extraction volume; a split design is adopted to facilitate maintenance, and the structure is compact, which is convenient for installation inside a fuel dispenser with a small space" and other technical effects;

[0004] Conventional vacuum pump air inlets usually use threaded connections. Although this facilitates daily assembly and disassembly, it is prone to loosening when subjected to large external forces and vibrations. Moreover, under high-pressure working conditions, the inherent tiny gap problem of the threaded connection itself may cause potential air leakage risks. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a special vacuum pump for oil and gas recovery, which has an air inlet assembly that fixes the joint assembly from both the inner and outer walls, thereby improving the connection strength and sealing, while also retaining the convenience of disassembly and assembly.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A vacuum pump for oil and gas recovery, including a vacuum pump and used for vacuuming, the vacuum pump includes:

[0007] The main assembly includes a front cover fixed to the front end of the main frame and a top cover fixed to the upper end of the main frame;

[0008] The air inlet assembly includes an air inlet head fixed to the top of the top cover, a sleeve head integrally formed at the outer edge of the upper end of the air inlet head, an air head integrally formed at the center of the upper end of the air inlet head, a sliding ring plate sleeved on the air head, four equally distributed guide frames fixed at the outer edge of the bottom of the ring plate, a lock head slidably mounted on the guide frame through an internal oblique hole, and the lock head and the sleeve head are slidably mounted through the guide frame;

[0009] The connector assembly includes an air intake connector installed at the upper end of the air intake head and an integrally formed plug at the lower end of the air intake connector.

[0010] Preferably, the air inlet assembly further comprises a nut threadedly mounted on the air inlet head, a connecting ring fixed on the top of the nut, and a tightening sleeve rotatably mounted on the upper end of the connecting ring.

[0011] Preferably, the inner wall of the tightening sleeve is a structure that is larger at the top and smaller at the bottom, and the outer wall of the lower end of the air inlet joint is a structure that is larger at the top and smaller at the bottom.

[0012] Preferably, the air inlet assembly further comprises a spring sleeved on the air head, and the spring is located at the bottom of the ring plate.

[0013] Preferably, the air inlet assembly further comprises a sealing ring mounted on the top of the sleeve, the inner wall of the sleeve matches the outer wall of the plug, and the outer wall of the air head matches the inner wall of the plug.

[0014] Preferably, the main body component also includes a motor installed at the rear end of the main frame, a pump-end shaft coupling installed at the output end of the motor, a high-level pump chamber installed at the front end of the pump-end shaft coupling, a low-level pump chamber installed at the front end of the high-level pump chamber, a stop valve installed at the upper end of the main frame, and an exhaust port integrally formed on the top of the front cover.

[0015] Beneficial effects

[0016] The utility model provides a vacuum pump for oil and gas recovery. Compared with the existing technology, it has the following advantages:

[0017] Beneficial effects:

[0018] (1) Fix the joint assembly on the intake pipe to be connected, and insert the joint assembly on the intake pipe into the intake port assembly so that the plug pushes the ring plate downward, and the ring plate drives the lock head to extend outward through the guide frame and supports the inner wall of the lower end of the intake joint, thereby fixing the joint assembly installed on the intake port assembly; then rotate the nut clockwise to cooperate with the connecting ring to drive the tightening sleeve to move upward and sleeve on the lower end of the intake joint until the tightening sleeve is completely sleeved on the outer wall of the lower end of the intake joint and tightens it, thereby further reinforcing the joint assembly installed on the intake port assembly; the intake port assembly is fixed to the joint assembly from both the inner and outer walls, thereby improving the connection strength and sealing.

[0019] (2) When the connector assembly needs to be disassembled from the air inlet assembly, the nut is rotated counterclockwise to cooperate with the connecting ring to drive the tightening sleeve downward, and the tightening of the air inlet joint is released, and the air inlet joint is pulled out upward. At the same time, the ring plate is pushed by the spring rebound pressure to cooperate with the guide frame to drive the lock head to retract inward, and the tightening of the air inlet joint is released, so that the connector assembly can be completely removed from the air inlet assembly; the convenience of disassembly and assembly is retained. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a disassembled diagram of the utility model;

[0022] Figure 3 This is an exploded view of the air inlet assembly and the connector assembly in the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the air inlet assembly and the joint assembly in the present invention.

[0024] In the figure: 1. Vacuum pump; 11. Main body assembly; 111. Main frame; 112. Front cover; 113. Top cover; 114. Motor; 115. Pump end shaft coupling; 116. High-stage pump chamber; 117. Low-stage pump chamber; 118. Stop valve; 119. Exhaust port; 12. Air inlet assembly; 121. Air inlet head; 122. Sleeve head; 123. Air head; 124. Ring plate; 125. Guide frame; 126. Lock head; 127. Nut; 128. Connecting ring; 129. Tightening sleeve; 1210. Spring; 1211. Sealing ring; 13. Connector assembly; 131. Air inlet connector; 132. Plug. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The utility model provides a technical solution for a vacuum pump for oil and gas recovery: a vacuum pump for oil and gas recovery, comprising a vacuum pump 1 and used for vacuuming, the vacuum pump 1 comprising:

[0027] The main assembly 11 includes a front cover 112 fixed to the front end of the main frame 111 and a top cover 113 fixed to the upper end of the main frame 111;

[0028] The air inlet assembly 12 comprises an air inlet head 121 fixed on the top of the top cover 113, a sleeve head 122 integrally formed on the outer edge of the upper end of the air inlet head 121, an air head 123 integrally formed on the central upper end of the air inlet head 121, a ring plate 124 slidably installed on the air head 123, four guide frames 125 equally distributed and fixed on the bottom outer edge of the ring plate 124, lock heads 126 slidably installed through the internal inclined holes of the guide frames 125, and the lock heads 126 are slidably installed through the sleeve head 122.

[0029] The joint assembly 13 comprises an air inlet joint 131 installed on the upper end of the air inlet head 121, and a plug 132 integrally formed on the lower end of the air inlet joint 131.

[0030] In this embodiment, the joint assembly 13 can be fixed on the air inlet pipe to be connected, and the joint assembly 13 on the air inlet pipe is inserted into the air inlet assembly 12, so that the plug 132 pushes the ring plate 124 downward, the ring plate 124 drives the lock head 126 to extend outward through the guide frame 125, and supports the inner wall of the lower end of the air inlet joint 131, thereby fixing the joint assembly 13 installed on the air inlet assembly 12.

[0031] Specifically, the air inlet assembly 12 further comprises a nut 127 threadedly installed on the air inlet head 121, a connecting ring 128 fixed on the top of the nut 127, and a compression sleeve 129 rotatably installed on the upper end of the connecting ring 128.

[0032] In this embodiment, when the joint assembly 13 is installed on the air inlet assembly 12, the nut 127 can be rotated clockwise to drive the compression sleeve 129 to move upward and be sleeved on the lower end of the air inlet joint 131, until the compression sleeve 129 is completely sleeved on the outer wall of the lower end of the air inlet joint 131 and is compressed, thereby further reinforcing the joint assembly 13 installed on the air inlet assembly 12.

[0033] Specifically, the inner wall of the compression sleeve 129 is large at the top and small at the bottom, and the lower end of the air inlet joint 131 is large at the top and small at the bottom.

[0034] In this embodiment, the compression sleeve 129 can be compressed when it is pressed against the lower end of the air inlet joint 131.

[0035] Specifically, the air inlet assembly 12 further comprises a spring 1210 installed on the air head 123, and the spring 1210 is located at the bottom of the ring plate 124.

[0036] In this embodiment, when the connector assembly 13 needs to be removed from the air inlet assembly 12, the nut 127 is rotated counterclockwise to cooperate with the connecting ring 128 to drive the tightening sleeve 129 to move downward, and the tightening of the air inlet connector 131 is released, and the air inlet connector 131 is pulled out upward. At the same time, the rebound pressure of the spring 1210 pushes the ring plate 124 to cooperate with the guide frame 125 to drive the lock head 126 to retract inward, releasing the tightening of the air inlet connector 131, so that the connector assembly 13 can be completely removed from the air inlet assembly 12.

[0037] Specifically, the air inlet assembly 12 further includes a sealing ring 1211 installed on the top of the sleeve 122 , the inner wall of the sleeve 122 matches the outer wall of the plug 132 , and the outer wall of the air head 123 matches the inner wall of the plug 132 .

[0038] In this embodiment, when the connector assembly 13 is installed with the air inlet assembly 12, the air head 123 is inserted into the plug 132, the air head 123 is inserted into the sleeve 122, the sleeve 122 is inserted into the air inlet connector 131, and the sealing ring 1211 is used to improve the sealing after installation.

[0039] Specifically, the main body component 11 also includes a motor 114 installed at the rear end of the main frame 111, a pump-end shaft coupling 115 installed at the output end of the motor 114, a high-level pump chamber 116 installed at the front end of the pump-end shaft coupling 115, a low-level pump chamber 117 installed at the front end of the high-level pump chamber 116, a stop valve 118 installed at the upper end of the main frame 111, and an exhaust port 119 integrally formed at the top of the front cover 112.

[0040] The working principle and usage process of the present invention are as follows: First, fix the joint assembly 13 on the intake pipe to be connected, and insert the joint assembly 13 on the intake pipe into the air inlet assembly 12, so that the plug 132 pushes the ring plate 124 downward, and the ring plate 124 drives the lock head 126 to extend outward through the guide frame 125 and supports the inner wall of the lower end of the intake joint 131, thereby fixing the joint assembly 13 installed on the air inlet assembly 12; then, rotate the nut 127 clockwise to cooperate with the connecting ring 128 to drive the tightening sleeve 129 to move upward and sleeve on the lower end of the intake joint 131 until the tightening sleeve 129 is completely sleeved on the intake joint. 131 and tightens the outer wall of the lower end, thereby further reinforcing the connector assembly 13 installed on the air inlet assembly 12; finally, when the connector assembly 13 needs to be removed from the air inlet assembly 12, the nut 127 is rotated counterclockwise to cooperate with the connecting ring 128 to drive the tightening sleeve 129 to move downward, and the tightening of the air inlet connector 131 is released, and the air inlet connector 131 is pulled out upward. At the same time, the rebound pressure of the spring 1210 pushes the ring plate 124 to cooperate with the guide frame 125 to drive the lock head 126 to retract inward, and the tightening of the air inlet connector 131 is released, so that the connector assembly 13 can be completely removed from the air inlet assembly 12.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum pump for oil and gas recovery, characterized by: The invention comprises a vacuum pump (1) and is used for vacuuming. The vacuum pump (1) comprises: The main body assembly (11) includes a front cover (112) fixed to the front end of the main frame (111) and a top cover (113) fixed to the upper end of the main frame (111); The air inlet assembly (12) comprises an air inlet head (121) fixed on the top of the top cover (113), a sleeve head (122) integrally formed on the outer edge of the upper end of the air inlet head (121), an air head (123) integrally formed in the center of the upper end of the air inlet head (121), a ring plate (124) sleeved on the air head (123) for sliding installation, four guide frames (125) equally distributed and fixed on the outer edge of the bottom of the ring plate (124), a lock head (126) slidably installed on the guide frame (125) through an internal oblique hole, and the lock head (126) and the sleeve head (122) are slidably installed through each other; The connector assembly (13) comprises an air intake connector (131) mounted on the upper end of the air intake head (121) and an integrally formed plug (132) at the lower end of the air intake connector (131).

2. The vacuum pump for oil and gas recovery according to claim 1, characterized in that: The air inlet assembly (12) further comprises a nut (127) threadedly mounted on the air inlet head (121), a connecting ring (128) fixed on the top of the nut (127), and a tightening sleeve (129) rotatably mounted on the upper end of the connecting ring (128).

3. The vacuum pump for oil and gas recovery according to claim 2, characterized in that: The inner wall of the tightening sleeve (129) is a structure that is larger at the top and smaller at the bottom, and the outer wall of the lower end of the air inlet joint (131) is a structure that is larger at the top and smaller at the bottom.

4. The vacuum pump for oil and gas recovery according to claim 1, characterized in that: The air inlet assembly (12) further comprises a spring (1210) sleeved and mounted on the air head (123), and the spring (1210) is located at the bottom of the ring plate (124).

5. The vacuum pump for oil and gas recovery according to claim 1, characterized in that: The air inlet assembly (12) further includes a sealing ring (1211) mounted on the top of the sleeve (122), the inner wall of the sleeve (122) matches the outer wall of the plug (132), and the outer wall of the air head (123) matches the inner wall of the plug (132).

6. The vacuum pump for oil and gas recovery according to claim 1, characterized in that: The main assembly (11) further includes a motor (114) mounted at the rear end of the main frame (111), a pump-end shaft coupling (115) mounted at the output end of the motor (114), a high-level pump chamber (116) mounted at the front end of the pump-end shaft coupling (115), a low-level pump chamber (117) mounted at the front end of the high-level pump chamber (116), a stop valve (118) mounted at the upper end of the main frame (111), and an exhaust port (119) integrally formed at the top of the front cover (112).

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