Efficient filtering gas-liquid separation device for recovering wellhead natural gas

Abstract

The utility model relates to the field of natural gas recovery processing equipment, and discloses a wellhead natural gas recovery efficient filtering gas-liquid separation device, which comprises a separation box, a gas-liquid separation device and a gas-liquid separation device, the cleaning and replacing mechanism comprises a filtering frame, a molecular sieve adsorbent containing cylinder, an adding hopper, a discharging hopper, a rotating plate I, a rotating plate II, a positioning block, a top plate and a fixing screw; the filter frame is clamped with the separation box, the molecular sieve adsorbent containing barrel is fixedly installed in the separation box, the adding hopper and the discharging hopper are fixedly installed at the top and the bottom of the molecular sieve adsorbent containing barrel respectively, and the first rotating plate and the second rotating plate abut against the discharging hopper and the adding hopper respectively. And the bottom of the filter frame is fixedly connected with the positioning block. The natural gas recovery device has the following advantages and effects that the filter plate can be conveniently and quickly detached to be cleaned, the molecular sieve adsorbent can be conveniently and quickly replaced, and the natural gas recovery efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of natural gas recovery and processing equipment, and in particular to a high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery. Background Technology

[0002] In order to protect the Earth's environment and achieve sustainable development of Earth's energy, the use of clean energy is becoming increasingly mainstream in modern society. Natural gas is a clean gas energy produced along with oil mining. It is a high-quality fuel and chemical raw material. In order to avoid the loss of natural gas, it is necessary to recover and collect oil and natural gas for later use. Newly extracted natural gas usually contains a lot of impurities and moisture, so it is necessary to filter and separate the natural gas into gas and liquid.

[0003] In existing technologies, high-efficiency filtration gas-liquid separation devices filter natural gas through filter plates and remove moisture from natural gas through molecular sieve adsorbents. However, after a period of use, it is inconvenient to quickly remove and clean the filter plates or replace the molecular sieve adsorbents, which affects the efficiency of natural gas recovery and has certain limitations. Therefore, it is necessary to design a high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery to solve the above problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency filtration and gas-liquid separation device for wellhead natural gas recovery, in order to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery, comprising:

[0007] A separation box, which is equipped with a cleaning and replacement mechanism;

[0008] The cleaning and replacement mechanism includes a filter frame, a molecular sieve adsorbent container, an adding hopper, a discharging hopper, a rotating plate one, a rotating plate two, a positioning block, a top plate, and fixing screws;

[0009] The filter frame is snapped into the separation box, the molecular sieve adsorbent container is fixedly installed inside the separation box, the addition hopper and the discharge hopper are respectively fixedly installed at the top and bottom of the molecular sieve adsorbent container, the first rotating plate and the second rotating plate abut against the discharge hopper and the addition hopper respectively, the bottom of the filter frame is fixedly connected to the positioning block, the positioning block is snapped into the first rotating plate, the top plate is fixedly installed on the top of the filter frame, and the top plate is fixedly installed on the top of the separation box by fixing screws.

[0010] A further feature of this invention is that the cleaning and replacement mechanism includes a filter plate, an air inlet pipe, and an attachment cover. The filter plate is fixedly installed inside the filter frame, the air inlet pipe is fixedly installed between the molecular sieve adsorbent container and the attachment cover, the attachment cover is sealed against the filter frame, and a rotating shaft is fixedly installed on both the first rotating plate and the second rotating plate. The first rotating plate is rotatably installed at the bottom of the separation box via the rotating shaft, and the second rotating plate is rotatably installed at the top of the separation box via the rotating shaft. The side of the second rotating plate abuts against the top plate.

[0011] A further feature of this invention is that a wellhead natural gas inlet pipe is fixedly installed on the separation box, and a wellhead natural gas outlet pipe is fixedly installed on the molecular sieve adsorbent container, with the wellhead natural gas outlet pipe fixedly mounted on the separation box.

[0012] By adopting the above technical solution, the addition and discharge of natural gas can be facilitated.

[0013] A further feature of this invention is that the top and bottom of the separation box are provided with circular holes, and the adding hopper and the discharging hopper are respectively located in the corresponding circular holes.

[0014] A further feature of this invention is that sealing gaskets are fixedly provided on both the first and second rotating plates, and the two sealing gaskets respectively seal and abut against the adding hopper and the discharging hopper.

[0015] By adopting the above technical solution, the addition hopper and the discharge hopper can be blocked.

[0016] A further feature of this invention is that: a rectangular hole is provided at the top of the separation box, and the filter frame is fitted into the rectangular hole; a bottom hole is provided at the bottom of the separation box, and the positioning block is fitted into the bottom hole.

[0017] By adopting the above technical solution, the insertion of filter frames and positioning blocks can be facilitated.

[0018] A further feature of this invention is that a positioning hole is provided on the top of the rotating plate, and the positioning block is engaged with the positioning hole.

[0019] A further feature of this invention is that a sealing gasket is embedded in the rectangular hole, the filter frame is in sealing contact with the sealing gasket, a second sealing gasket is embedded in the bottom hole, and the positioning block is in sealing contact with the second sealing gasket.

[0020] The beneficial effects of this utility model are:

[0021] This invention features a cleaning and replacement mechanism. By rotating the fixing screws, the filter frame can be removed for easy cleaning of the filter plates. At this point, the limiting positions of rotating plates one and two are released. Rotating rotating plate one allows the molecular sieve adsorbent to be discharged. After discharge, rotating plate one returns to its original position. Rotating rotating plate two allows the addition of molecular sieve adsorbent through the adding hopper. After addition, rotating plate two returns to its original position. The filter frame can then be reassembled. This convenient and quick method allows for the removal and cleaning of the filter plates and the rapid replacement of the molecular sieve adsorbent, ensuring efficient natural gas recovery. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0023] Figure 1 This is a schematic diagram of the structure of a high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery proposed in this utility model.

[0024] Figure 2 This is a cross-sectional structural schematic diagram of a high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery proposed in this utility model.

[0025] Figure 3 yes Figure 2 A schematic diagram of part A in the diagram.

[0026] Figure 4 yes Figure 2 A schematic diagram of part B in the diagram.

[0027] In the diagram, 1. Separation box; 2. Filter frame; 3. Filter plate; 4. Molecular sieve adsorbent container; 5. Inlet pipe; 6. Attachment cover; 7. Addition hopper; 8. Discharge hopper; 9. Rotating shaft; 10. Rotating plate one; 11. Rotating plate two; 12. Sealing gasket; 13. Positioning block; 14. Top plate; 15. Fixing screw; 16. Wellhead natural gas inlet pipe; 17. Wellhead natural gas outlet pipe; 18. Rectangular hole; 19. Round hole. Detailed Implementation

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery, comprising:

[0031] Separation box 1 is equipped with a cleaning and replacement mechanism. It should be noted that the cleaning and replacement mechanism allows for quick and easy removal and cleaning of filter plate 3, as well as quick and easy replacement of molecular sieve adsorbent, ensuring the efficiency of natural gas recovery.

[0032] The cleaning and replacement mechanism includes a filter frame 2, a molecular sieve adsorbent container 4, an addition hopper 7, a discharge hopper 8, a rotating plate 10, a rotating plate 2 11, a positioning block 13, a top plate 14, and fixing screws 15.

[0033] The filter frame 2 is snapped into the separation box 1, and the molecular sieve adsorbent container 4 is fixedly installed inside the separation box 1. It should be noted that the molecular sieve adsorbent container 4 contains molecular sieve adsorbent. The commonly used molecular sieve is a synthetic zeolite, which is an aluminosilicate crystal composed of SiO4 and AlO4 tetrahedra. The molecular sieve adsorbent has many neatly arranged, uniformly sized channels that are interconnected by pores. The pore size is similar to that of molecules. Molecular sieves have high adsorption performance and can reduce the moisture content in the dried gas to below 1 ppm.

[0034] Addition hopper 7 and discharge hopper 8 are fixedly installed at the top and bottom of molecular sieve adsorbent container 4, respectively. Rotating plate 10 and rotating plate 21 abut against discharge hopper 8 and addition hopper 7, respectively. The bottom of filter frame 2 is fixedly connected to positioning block 13. Positioning block 13 is engaged with rotating plate 10. Top plate 14 is fixedly installed on the top of filter frame 2. Top plate 14 is fixedly installed on the top of separation box 1 by fixing screws 15.

[0035] Using the cleaning and replacement mechanism described above, rotate the fixing screw 15 and then pull the top plate 14 to remove the filter frame 2. This facilitates cleaning the filter plate 3 inside the filter frame 2 and allows the top plate 14 to separate from the rotating plate 11. The positioning block 13 is moved away from the rotating plate 10, thus allowing the limiting of the rotating plate 10 and the rotating plate 11 to be engaged. At this time, the rotating plates 10 and 11 can be rotated to allow the molecular sieve adsorbent in the molecular sieve adsorbent container 4 to be discharged from the discharge hopper 8. Then, rotate the rotating plate 10 back to its original position so that the sealing gasket 12 on the rotating plate 10 seals and abuts against the discharge hopper 8. Next, add the molecular sieve adsorbent into the molecular sieve adsorbent container 4 through the adding hopper 7. After adding, rotate the rotating plate 11 to move it back to its original position and assemble the filter frame 2 onto the separation box 1.

[0036] Specifically, the cleaning and replacement mechanism also includes filter plate 3, air inlet pipe 5 and attachment cover 6. Filter plate 3 is fixedly installed inside filter frame 2. Air inlet pipe 5 is fixedly installed between molecular sieve adsorbent container 4 and attachment cover 6. Attachment cover 6 is sealed and abuts against filter frame 2. It should be noted that sealing can be ensured by embedding a sealing gasket.

[0037] Rotating plates 10 and 11 are both fixedly equipped with rotating shafts 9. Rotating plate 10 is rotatably mounted on the bottom of the separation box 1 via rotating shaft 9, and rotating plate 11 is rotatably mounted on the top of the separation box 1 via rotating shaft 9. The side of rotating plate 11 abuts against the top plate 14.

[0038] Through the aforementioned cleaning and replacement mechanism, the filter plate 3 can filter impurities in the natural gas. The filtered natural gas enters the molecular sieve adsorbent container 4 through the attachment cover 6 and the inlet pipe 5. The molecular sieve adsorbent in the molecular sieve adsorbent container 4 removes moisture from the natural gas and finally discharges it through the wellhead natural gas outlet pipe 17.

[0039] Specifically, a wellhead natural gas inlet pipe 16 is fixedly installed on the separation box 1, and a wellhead natural gas outlet pipe 17 is fixedly installed on the molecular sieve adsorbent container 4. The wellhead natural gas outlet pipe 17 is fixedly installed on the separation box 1 to facilitate the addition and discharge of natural gas.

[0040] Specifically, the top and bottom of the separation box 1 are provided with round holes 19, and the adding hopper 7 and the discharging hopper 8 are respectively located in the corresponding round holes 19. The rotating plate 10 and the rotating plate 2 are respectively fixedly provided with sealing gaskets 12, and the two sealing gaskets 12 are respectively sealed and abutted against the adding hopper 7 and the discharging hopper 8. It should be noted that the adding hopper 7 and the discharging hopper 8 can be sealed.

[0041] Specifically, the top of the separation box 1 has a rectangular hole 18, and the filter frame 2 is engaged with the rectangular hole 18. The bottom of the separation box 1 has a bottom hole, and the positioning block 13 is engaged with the bottom hole. The top of the rotating plate 10 has a positioning hole, and the positioning block 13 is engaged with the positioning hole. A sealing gasket 1 is embedded in the rectangular hole 18, and the filter frame 2 is in sealed contact with the sealing gasket 1. A sealing gasket 2 is embedded in the bottom hole, and the positioning block 13 is in sealed contact with the sealing gasket 2. It should be noted that this ensures the sealing of the contact points.

[0042] Working principle:

[0043] S1: Natural gas is added through the natural gas inlet pipe 16 at the wellhead. The filter plate 3 can filter impurities in the natural gas. The filtered natural gas enters the molecular sieve adsorbent container 4 through the attached cover 6 and the inlet pipe 5. The molecular sieve adsorbent in the molecular sieve adsorbent container 4 removes the moisture in the natural gas and finally discharges it through the natural gas outlet pipe 17 at the wellhead.

[0044] S2: When it is necessary to clean the filter plate 3 and replace the molecular sieve adsorbent, turn the fixing screw 15 to remove it, then pull the top plate 14. The top plate 14 moves the filter frame 2 upward, and the filter frame 2 moves the positioning block 13 upward, allowing the filter frame 2 to be removed. This facilitates the cleaning of the filter plate 3 inside the filter frame 2 and allows the top plate 14 to separate from the rotating plate 11. The positioning block 13 moves away from the rotating plate 10, thus allowing contact with the rotating plate. The first plate 10 and the second plate 11 are limited. At this time, the first plate 10 and the second plate 11 can be rotated so that the molecular sieve adsorbent in the molecular sieve adsorbent container 4 is discharged from the discharge hopper 8. Then, the first plate 10 is rotated back to its original position so that the sealing gasket 12 on the first plate 10 seals and abuts against the discharge hopper 8. Then, the molecular sieve adsorbent is added into the molecular sieve adsorbent container 4 through the addition hopper 7. After the addition is completed, the second plate 11 is rotated to move the second plate 11 back to its original position.

[0045] S3: Insert the filter frame 2 into the separation box 1, so that the top plate 14 abuts against the rotating plate 11. The positioning block 13 is inserted into the rotating plate 10, so that the rotating plate 10 and the rotating plate 11 can be rotated. Finally, turn the fixing screw 15 to fix the top plate 14 to the top of the separation box 1. This makes it easy to quickly remove the filter plate 3 for cleaning and to quickly replace the molecular sieve adsorbent, ensuring the efficiency of natural gas recovery.

[0046] The above provides a detailed description of the high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery, characterized in that, include: Separation box (1), the separation box (1) is provided with a cleaning and replacement mechanism; The cleaning and replacement mechanism includes a filter frame (2), a molecular sieve adsorbent container (4), an addition hopper (7), a discharge hopper (8), a rotating plate one (10), a rotating plate two (11), a positioning block (13), a top plate (14), and fixing screws (15). The filter frame (2) is engaged with the separation box (1). The molecular sieve adsorbent container (4) is fixedly installed inside the separation box (1). The addition hopper (7) and the discharge hopper (8) are fixedly installed at the top and bottom of the molecular sieve adsorbent container (4), respectively. The first rotating plate (10) and the second rotating plate (11) abut against the discharge hopper (8) and the addition hopper (7), respectively. The bottom of the filter frame (2) is fixedly connected to the positioning block (13). The positioning block (13) is engaged with the first rotating plate (10). The top plate (14) is fixedly installed on the top of the filter frame (2). The top plate (14) is fixedly installed on the top of the separation box (1) by fixing screws (15).

2. The high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery according to claim 1, characterized in that, The cleaning and replacement mechanism also includes a filter plate (3), an air inlet pipe (5), and an attachment cover (6). The filter plate (3) is fixedly installed inside the filter frame (2). The air inlet pipe (5) is fixedly installed between the molecular sieve adsorbent container (4) and the attachment cover (6). The attachment cover (6) is sealed against the filter frame (2). Rotating shafts (9) are fixedly installed on both the first rotating plate (10) and the second rotating plate (11). The first rotating plate (10) is rotatably installed at the bottom of the separation box (1) via the rotating shaft (9). The second rotating plate (11) is rotatably installed at the top of the separation box (1) via the rotating shaft (9). The side of the second rotating plate (11) abuts against the top plate (14).

3. The high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery according to claim 1, characterized in that, A wellhead natural gas inlet pipe (16) is fixedly installed on the separation box (1), and a wellhead natural gas outlet pipe (17) is fixedly installed on the molecular sieve adsorbent container (4). The wellhead natural gas outlet pipe (17) is fixedly installed on the separation box (1).

4. The high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery according to claim 1, characterized in that, The separation box (1) has round holes (19) at the top and bottom, and the adding hopper (7) and the discharging hopper (8) are located in the corresponding round holes (19).

5. The high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery according to claim 1, characterized in that, Both the first rotating plate (10) and the second rotating plate (11) are fixedly provided with sealing gaskets (12), and the two sealing gaskets (12) are respectively sealed and abutted against the adding hopper (7) and the discharging hopper (8).

6. The high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery according to claim 1, characterized in that, The separation box (1) has a rectangular hole (18) at the top, and the filter frame (2) is fitted into the rectangular hole (18). The separation box (1) has a bottom hole at the bottom, and the positioning block (13) is fitted into the bottom hole.

7. The high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery according to claim 1, characterized in that, The top of the rotating plate (10) is provided with a positioning hole, and the positioning block (13) is engaged with the positioning hole.

8. The high-efficiency filtration gas-liquid separation device for wellhead natural gas recovery according to claim 6, characterized in that, The rectangular hole (18) is fitted with a sealing gasket, the filter frame (2) is in sealing contact with the sealing gasket, the bottom hole is fitted with a sealing gasket, and the positioning block (13) is in sealing contact with the sealing gasket.

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