Gas-liquid separator for petroleum engineering

Abstract

The utility model provides a gas-liquid separator for petroleum engineering, which relates to the technical field of petroleum engineering and comprises a barrel, the bottom end of the barrel is connected with a drain valve, one side of the barrel is provided with a gas inlet and a manhole, the other side of the barrel is provided with a gas outlet, and the top end of the barrel is provided with a detachable barrel cover. A first filtering piece and a second filtering piece are arranged in the barrel, the second filtering piece is located below the first filtering piece, and a connecting structure is connected between the second filtering piece and the first filtering piece; the pressing structure is used for fixing the first filtering piece; compared with the prior art, the quick disassembly and assembly of the first filter part and the second filter part can be realized, and the quick disassembly and assembly of the first filter part and the second filter part can be realized by utilizing the arrangement of the connecting structure, so that the cleaning effect of the first filter and the second filter can be improved; and efficient maintenance of the first filter and the second filter is facilitated, and the gas-liquid separation effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum engineering, especially gas-liquid separator for petroleum engineering. BACKGROUND

[0002] Petroleum engineering refers to the engineering design, engineering construction and management, application research and scientific and technological development in the aspects of oil and gas drilling engineering, oil production engineering, oil reservoir engineering, reservoir evaluation, etc. In oil exploitation, natural gas is often extracted at the same time, and the extracted natural gas is compressed by a compressor and then transported to a designated area. Before the natural gas enters the compressor for compression, a gas-liquid separator is often used to remove the particles and liquid in the natural gas to ensure the use of the natural gas.

[0003] In the Chinese patent with the authorized announcement number CN 215463053 U, a high-efficiency gas-liquid separator is disclosed. The separator uses a filter with a wire mesh and multiple blades to reduce the volume of the separation container through the close combination of the two, which not only has high filtering precision but also has high filtering efficiency, allowing the advantages of the two to be realized without increasing the cost and size of the separator, facilitating maintenance of the separator. However, in the above-mentioned separator, the first filter and the second filter are generally maintained through a manhole. However, it is not convenient to disassemble and assemble the first filter and the second filter through the manhole, which makes the cleaning or replacement of the first filter and the second filter inconvenient, resulting in poor cleaning effect of the first filter and the second filter, which is not conducive to the maintenance of the first filter and the second filter and affects the gas-liquid separation effect. SUMMARY

[0004] To solve the above problems of the prior art, the utility model provides a gas-liquid separator for petroleum engineering.

[0005] The technical scheme of the utility model is as follows:

[0006] The gas-liquid separator for petroleum engineering comprises a cylinder, a liquid discharge valve connected to the bottom end of the cylinder, an air inlet and a manhole provided on one side of the cylinder, an air outlet provided on the other side of the cylinder, a detachable cylinder cover provided at the top end of the cylinder, a first filter and a second filter provided inside the cylinder, the second filter being below the first filter, and a connecting structure connected between the second filter and the first filter.

[0007] The utility model also comprises a compression structure for fixing the first filter, the compression structure comprising a connecting block provided on the top of the first filter and a compression block fixed to the bottom end of the cylinder cover, a groove being formed in the top of the cylinder for inserting the connecting block and the compression block, a support block being installed on the inner wall of the cylinder for supporting the second filter, and the side of the connecting block and the compression block opposite to each other being obliquely cut to form a buckling part.

[0008] Preferably, a positioning pin is installed at the fastening part on the connecting block, and a positioning hole for the positioning pin to be inserted is provided at the fastening part on the pressure block.

[0009] Preferably, the first filter element includes an upper cover plate, a lower cover plate, and blades and a mesh installed between the upper cover plate and the lower cover plate, and the connecting block is installed on the outer circumference of the upper cover plate.

[0010] Preferably, the second filter element includes a filter ring, and a filter screen is installed in the middle of the filter ring.

[0011] Preferably, a pipe joint is installed at the bottom of the lower cover plate, a fixing ring is fixed on the inner wall of the cylinder, and a drain pipe is provided inside the fixing ring, with the top end of the drain pipe inserted into the pipe joint.

[0012] More preferably, the connecting structure includes a sleeve installed at the bottom of the lower cover plate and a connecting rod fixed on the filter ring. The connecting rod can be inserted into the inside of the sleeve, and a pin is inserted through the connecting rod on one side of the sleeve.

[0013] More preferably, an inclined spoiler is installed at one end of the air intake.

[0014] Most preferably, an installation structure is provided between the cylinder cover and the cylinder body, and the installation structure includes an upper flange ring installed at the bottom of the cylinder cover and a lower flange ring fixed at the top of the cylinder body, and a fastening bolt is screwed between the upper flange ring and the lower flange ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In use, the detachable cap, clamping structure, and support block of this utility model enable quick assembly and disassembly of the first and second filter elements, facilitating cleaning or maintenance of the first and second filter elements. Furthermore, the connecting structure allows for quick separation between the first and second filter elements, enabling individual replacement of either element and ensuring their continued use. This improves the cleaning effect of the first and second filters, facilitates efficient maintenance, and enhances the gas-liquid separation effect.

[0017] 2. In use, the positioning pin and positioning hole of this utility model can quickly position the pressure block and the connecting block, thereby facilitating stable docking between the connecting block and the pressure block. This further facilitates the cylinder cover to stably press the first filter element, which is beneficial to the stable installation of the first filter element and the second filter element, and facilitates effective separation of gas and liquid. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 A partial sectional view;

[0021] Figure 3 for Figure 2 Exploded structural diagram;

[0022] Figure 4 This is a schematic diagram of the structure when the first and second filter elements are connected.

[0023] Figure 5 This is a structural diagram showing the first and second filter components when disassembled.

[0024] In the diagram: 1. Cylinder body; 2. Air inlet; 3. Drain valve; 4. Manhole; 5. Cylinder cover; 6. Air outlet; 7. Mounting structure; 71. Upper flange ring; 72. Lower flange ring; 73. Fastening bolt; 8. Baffle plate; 9. First filter element; 91. Upper cover plate; 92. Lower cover plate; 93. Blade; 94. Wire mesh; 10. Second filter element; 101. Filter ring; 102. Filter screen; 11. Pressing structure; 111. Connecting block; 112. Pressing block; 113. Groove; 114. Positioning pin; 12. Support block; 13. Connecting structure; 131. Sleeve; 132. Connecting rod; 133. Pin rod; 14. Drain pipe; 15. Fixing ring; 16. Pipe joint. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides, for example Figures 1-5The shown petroleum engineering gas-liquid separator includes a cylinder 1, a drain valve 3 connected to the bottom end of the cylinder 1, an air inlet 2 and a manhole 4 on one side of the cylinder 1, an air outlet 6 on the other side, a removable cylinder cover 5 on the top end of the cylinder 1, and a first filter element 9 and a second filter element 10 arranged inside the cylinder 1. The second filter element 10 is located below the first filter element 9, and a connecting structure 13 connects the second filter element 10 and the first filter element 9. An inclined baffle 8 is installed at one end of the air inlet 2.

[0027] It also includes a clamping structure 11 for fixing the first filter element 9. The clamping structure 11 includes a connecting block 111 located on the top of the first filter element 9 and a pressing block 112 fixed to the bottom of the cylinder cover 5. The top of the cylinder 1 is provided with a groove 113 for inserting the connecting block 111 and the pressing block 112. A support block 12 for supporting the second filter element 10 is installed on the inner wall of the cylinder 1. The connecting block 111 and the pressing block 112 are obliquely cut on opposite sides to form a fastening part that fits together.

[0028] Specifically, the first filter element 9 includes an upper cover plate 91, a lower cover plate 92, and blades 93 and wire mesh 94 installed between the upper cover plate 91 and the lower cover plate 92. The connecting block 111 is installed on the outer circumference of the upper cover plate 91.

[0029] Specifically, the second filter element 10 includes a filter ring 101, and a filter screen 102 is installed in the middle of the filter ring 101.

[0030] Specifically, the connecting structure 13 includes a sleeve 131 installed at the bottom of the lower cover plate 92 and a connecting rod 132 fixed on the filter ring 101. The connecting rod 132 can be inserted into the inside of the sleeve 131, and a pin 133 that passes through the connecting rod 132 is inserted into one side of the sleeve 131.

[0031] As described above, during use, gas can enter the cylinder 1 through the air inlet 2. At this time, the baffle 8 performs preliminary cyclone separation on the gas (this principle is existing technology, please refer to the prior art document (authorization announcement number: CN 215463053 U, name: a high-efficiency gas-liquid separator), which will not be elaborated here). This causes the larger solid particles in the gas to come into contact with the baffle 8 and fall to the bottom of the cylinder 1 under the action of gravity. Then the gas rises and is first filtered by the second filter element 10, that is, through inertial separation. The holes on the filter screen 102 ensure that most of the mist liquid is separated. Then the gas flows into the first filter element 9, where most of the liquid phase components are filtered out by the wire mesh 94. Finally, the gas is defoamed by the blades 93, thus achieving three-stage filtration of the gas, which greatly improves the gas separation effect.

[0032] When the first filter element 9 and the second filter element 10 need cleaning or maintenance, the cylinder cover 5 can be removed from the top of the cylinder body 1 first, and then the first filter element 9 can be pulled upward to remove the first filter element 9 and the second filter element 10 from the cylinder body 1. Then, the first filter element 9 and the second filter element 10 can be cleaned or maintained. After cleaning or maintenance, the first filter element 9 and the second filter element 10 can be inserted into the cylinder body 1. At this time, the support block 12 supports the second filter element 10, and the connecting block 111 is inserted into the groove 113. Then, the cylinder cover 5 is installed on the cylinder body 1. At this time, the pressing block 112 is inserted into the groove 113 and presses on the top of the connecting block 111 to press and fix the first filter element 9 and the second filter element 10, thus completing the installation of the first filter element 9 and the second filter element 10. This enables the quick installation and removal of the first filter element 9 and the second filter element 10, making it convenient for cleaning or maintenance of the first filter element 9 and the second filter element 10.

[0033] Furthermore, when the first filter element 9 or the second filter element 10 needs to be replaced, the pin rod 133 can be pulled out from the sleeve 131, and then the first filter element 9 can be pulled upwards so that the sleeve 131 can be pulled out from the connecting rod 132, thereby separating the first filter element 9 and the second filter element 10. Then, the first filter element 9 or the second filter element 10 can be replaced. After replacement, the sleeve 131 can be put on the connecting rod 132, and the pin rod 133 can be inserted into the sleeve 131 to fix the sleeve 131 and the connecting rod 132, thereby connecting the first filter element 9 and the second filter element 10. This allows for quick separation between the first filter element 9 and the second filter element 10, facilitating the individual replacement of the first filter element 9 or the second filter element 10 and ensuring the subsequent use of the first filter element 9 and the second filter element 10.

[0034] Furthermore, such as Figures 3-5 As shown, a positioning pin 114 is installed at the fastening part on the connecting block 111, and a positioning hole for the positioning pin 114 to be inserted is provided at the fastening part on the pressure block 112.

[0035] When the pressure block 112 is pressed onto the connecting block 111, the positioning pin 114 is inserted into the positioning hole to quickly position the pressure block 112 and the connecting block 111, thereby facilitating a stable connection between the connecting block 111 and the pressure block 112. This further facilitates the cylinder cover 5 to stably press the first filter element 9, which is beneficial for the stable installation of the first filter element 9 and the second filter element 10, and facilitates the effective separation of gas and liquid.

[0036] Furthermore, such as Figures 2-5 As shown, a pipe connector 16 is installed at the bottom of the lower cover plate 92, a fixing ring 15 is fixed on the inner wall of the cylinder 1, and a drain pipe 14 is provided inside the fixing ring 15. The top end of the drain pipe 14 is inserted into the inside of the pipe connector 16.

[0037] When the first filter element 9 separates the gas from the liquid, the liquid inside the first filter element 9 is guided to the bottom of the cylinder 1 through the pipe joint 16 and the drain pipe 14 to avoid the gas and liquid coming into contact and mixing, which further facilitates gas-liquid separation.

[0038] Meanwhile, in this embodiment, regarding how the aforementioned cylinder cover 5 is disassembled, as follows: Figures 1-3 As shown, an installation structure 7 is provided between the cylinder cover 5 and the cylinder body 1. The installation structure 7 includes an upper flange ring 71 installed at the bottom of the cylinder cover 5 and a lower flange ring 72 fixed at the top of the cylinder body 1. Fastening bolts 73 are screwed between the upper flange ring 71 and the lower flange ring 72.

[0039] When installing the cover 5, the cover 5 can be placed on top of the cylinder 1. At this time, the upper flange ring 71 and the lower flange ring 72 are connected. Then, the upper flange ring 71 and the lower flange ring 72 are screwed together and fixed by the fastening bolt 73 to install and fix the cover 5 to the cylinder 1. If the cover 5 needs to be disassembled, simply unscrew the fastening bolt 73 and pull the cover 5 upward to disassemble the cover 5 from the cylinder 1, thereby realizing the quick disassembly and assembly of the cover 5, so as to facilitate the disassembly, cleaning or replacement of the first filter element 9 and the second filter element 10.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas-liquid separator for petroleum engineering, characterized in that: The device includes a cylinder (1), with a drain valve (3) connected to the bottom end of the cylinder (1), and an air inlet (2) and a manhole (4) on one side of the cylinder (1) and an air outlet (6) on the other side. A detachable cylinder cover (5) is provided at the top of the cylinder (1), and a first filter element (9) and a second filter element (10) are provided inside the cylinder (1). The second filter element (10) is located below the first filter element (9), and a connecting structure (13) is connected between the second filter element (10) and the first filter element (9). It also includes a clamping structure (11) for fixing the first filter element (9). The clamping structure (11) includes a connecting block (111) on the top of the first filter element (9) and a pressure block (112) fixed at the bottom of the cylinder cover (5). The top of the cylinder (1) is provided with a groove (113) for inserting the connecting block (111) and the pressure block (112). The inner wall of the cylinder (1) is provided with a support block (12) for supporting the second filter element (10). The connecting block (111) and the pressure block (112) are obliquely cut on opposite sides to form a fastening part that fits together.

2. The gas-liquid separator for petroleum engineering according to claim 1, characterized in that: A positioning pin (114) is installed at the fastening part on the connecting block (111), and a positioning hole for the positioning pin (114) to be inserted is provided at the fastening part on the pressure block (112).

3. The gas-liquid separator for petroleum engineering according to claim 1, characterized in that: The first filter element (9) includes an upper cover plate (91), a lower cover plate (92), and blades (93) and wire mesh (94) installed between the upper cover plate (91) and the lower cover plate (92). The connecting block (111) is installed on the outer circumference of the upper cover plate (91).

4. The gas-liquid separator for petroleum engineering according to claim 3, characterized in that: The second filter element (10) includes a filter ring (101) with a filter screen (102) installed in the middle of the filter ring (101).

5. The gas-liquid separator for petroleum engineering according to claim 3, characterized in that: The bottom of the lower cover plate (92) is equipped with a pipe joint (16), and a fixing ring (15) is fixed on the inner wall of the cylinder (1). A drain pipe (14) is provided inside the fixing ring (15), and the top end of the drain pipe (14) is inserted into the inside of the pipe joint (16).

6. The gas-liquid separator for petroleum engineering according to claim 4, characterized in that: The connecting structure (13) includes a sleeve (131) installed at the bottom of the lower cover plate (92) and a connecting rod (132) fixed on the filter ring (101). The connecting rod (132) can be inserted into the inside of the sleeve (131), and a pin (133) is inserted through the connecting rod (132) on one side of the sleeve (131).

7. The gas-liquid separator for petroleum engineering according to claim 1, characterized in that: An inclined spoiler (8) is installed at one end of the air inlet (2).

8. The gas-liquid separator for petroleum engineering according to claim 1, characterized in that: An installation structure (7) is provided between the cylinder cover (5) and the cylinder body (1), and the installation structure (7) includes an upper flange ring (71) installed at the bottom of the cylinder cover (5) and a lower flange ring (72) fixed at the top of the cylinder body (1). A fastening bolt (73) is screwed between the upper flange ring (71) and the lower flange ring (72).

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