Anti-blocking natural gas extraction drainage sand remover

Abstract

The anti-blocking natural gas extraction drainage sand remover comprises an outer box body of a square structure, a control panel is fixedly installed on the outer surface of the front side of the outer box body, a gas inlet pipe communicating with the outer box body is fixedly installed on the left side of the outer box body, and an exhaust pipe is fixedly installed on the right side of the upper surface of the outer box body; and a blow-off pipe communicated with the outer box body is fixedly mounted at the left end of the outer surface of the front side of the outer box body. According to the anti-blocking drainage sand remover for natural gas extraction, the novel structural design is adopted, the upper filter screen can extrude the storage air bag in the up-down moving process, and when the storage air bag is extruded, air in the storage air bag is discharged out of the back-flushing spray head through the connecting hose, so that back-flushing cleaning is conducted on the front filter screen; and the extrusion cam roller drives the reciprocating screw rod to rotate through the transmission belt when rotating, so that the reciprocating screw rod drives the back-flushing spray head to move back and forth, the back-flushing range of the back-flushing spray head is expanded, and the comprehensive cleaning effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field related to natural gas exploitation, and in particular to an anti-clogging natural gas exploitation water drainage and sand remover. Background Art

[0002] Natural gas extraction refers to the process of extracting natural gas from underground rock formations through various technical means. Natural gas is mainly composed of methane, and sometimes contains a small amount of other hydrocarbon gases and some impurities. Since natural gas is extracted from underground, it will contain a certain amount of sand and water, so the newly extracted gas needs to be drained and desanded.

[0003] In the prior art, a Chinese patent with publication number CN210134909U discloses a natural gas drainage and sand removal device, including a processing box body, a partition plate is vertically arranged in the inner cavity of the processing box body, and the partition plate divides the inner cavity of the processing box body into a sand removal chamber and a drainage chamber, the sand removal chamber is arranged on the left side of the drainage chamber, and the left side wall of the sand removal chamber is horizontally installed with an air intake interface and a sand discharge pipe, and the air intake interface is arranged on the upper part of the sand discharge pipe, and the left end of the air intake interface is connected to the air intake pipeline through bolts and a flange. The utility model filters and separates sand and gravel in the gas through a filter net, condenses and separates moisture in the gas through a condenser, reduces the content of sand and gravel and moisture in the exhaust gas in the exhaust pipe, reduces the influence of sand and gravel on the working state of the gathering and transportation equipment, and reduces the influence of moisture on the later use or combustion of natural gas, and the equipment is easy to maintain, reducing the cost of natural gas extraction or the cost of later maintenance.

[0004] As another example in the prior art, a Chinese patent with publication number CN219220390U discloses a drainage and sand removal device for natural gas extraction, including a device body, wherein the device body includes a processing chamber, a top cover is threadedly installed on the top of the processing chamber, an exhaust port is provided on the top of the top cover, an air inlet is provided on the outside of the processing chamber, a support leg is fixedly installed on the bottom outside the processing chamber, and a sewage outlet is provided at the bottom of the processing chamber, two limit blocks are fixedly installed on the inner side wall of the processing chamber and above the air inlet, and a processing structure that can effectively ensure the processing effect is installed on the top of the limit block.

[0005] As another example in the prior art, a Chinese patent with publication number CN216077081U discloses a drainage and sand removal device for natural gas extraction, including a box body, one side of which is connected to an air inlet pipe, one side of the inner wall of the box body is fixed with a block located on the side of the air inlet pipe, one side of the block is rotatably connected to a baffle via a rotating shaft, one side of the baffle is provided with a rotary switch, one side of the box body is fixed with an electric push rod, and a second connecting rod that movably runs through one side of the box body is fixed to the push rod end of the electric push rod.

[0006] Based on the above materials, it can be seen that in the prior art, filtering measures (such as filter screens, etc.) are generally used to remove sand and gravel in natural gas. However, in actual use, small-diameter sand and gravel in natural gas may be embedded in the mesh of the filter screen, causing the filter screen to be blocked, affecting the subsequent filtering effect and speed. Summary of the invention

[0007] The object of the present invention is to provide a natural gas production drainage desander that is anti-clogging, so as to solve the problem in the above background technology that filter blockage affects the subsequent filtering effect and speed.

[0008] To achieve the above object, the present invention provides the following technical solution: an anti-clogging natural gas production water drainage desander, comprising an outer box body with a square structure, a control panel is fixedly installed on the outer surface of the front side of the outer box body, an air intake pipe connected to the outer box body is fixedly installed on the left side of the outer box body, and an exhaust pipe is fixedly installed on the right side of the upper surface of the outer box body, and also includes: A sewage pipe connected to the front side of the outer box is fixedly installed on the left end of the outer surface, and a first partition is fixedly installed on the left end of the inner part of the outer box, and the first partition is in a "7" shape as a whole, and a second partition is fixedly installed on the right side of the inner part of the outer box; A pre-filter is installed inside the upper end of the first baffle, and a heating resistor wire for heating the natural gas produced is fixedly installed at the lower end of the first baffle. A recoil mechanism for cleaning the pre-filter is arranged above the first baffle; The lower end of the second partition is penetrated by connecting holes arranged in a matrix, and a condensation mechanism for initially removing moisture is installed on the right surface of the lower end of the second partition; A transversely arranged lower filter is fixedly installed at the right end inside the outer box, and a cylindrical absorbent sponge is fixedly installed on the upper surface of the lower filter, and an upper filter is fixedly installed on the upper surface of the absorbent sponge, and the upper filter is slidably connected to the outer box up and down.

[0009] Preferably, the condensation mechanism comprises a condensation plate fixedly mounted on the right outer surface of the second partition, and the condensation plates are evenly arranged at equal intervals and correspond to the positions of the connecting holes, and a heat exchange tube is installed through the interior of the condensation plate.

[0010] Preferably, a refrigeration fin for cooling the condensed water is provided directly below the condensation plate, and the refrigeration fin is fixedly mounted on the lower surface of the inner part of the outer box body, and the upper end of the heat exchange tube is connected to the storage liquid bag.

[0011] Preferably, the liquid storage bag is fixedly installed between the lower filter screen and the upper filter screen, and a gas storage bag is also fixedly installed between the upper filter screen and the lower filter screen, and an extrusion cam roller rotatably installed inside the outer box body is provided above the upper filter screen.

[0012] Preferably, the recoil mechanism comprises a recoil nozzle installed above the front filter, and the recoil nozzle slides in contact with the upper surface of the front filter, and a movable slider is fixedly installed above the recoil nozzle for driving the recoil nozzle to move.

[0013] Preferably, a reciprocating screw rod rotatably connected to the outer box body is installed through a thread inside the movable slider, and the reciprocating screw rod rotates synchronously with the extrusion cam roller through a transmission belt installed at its rear end.

[0014] Preferably, a connecting hose for supplying air to the recoil nozzle is fixedly installed above the recoil nozzle, and the rear end of the connecting hose is interconnected with the storage air bag.

[0015] Preferably, an up-and-down sliding structure is formed between the pre-filter and the first partition, a connecting plate is fixedly installed on the lower surface of the pre-filter, and a vibration spring is fixedly installed between the connecting plate and the first partition.

[0016] Preferably, a flushing nozzle is fixedly mounted on the right outer surface of the first partition, and a delivery hose is fixedly mounted outside the flushing nozzle, the bottom end of the delivery hose passes through the lower end of the second partition, and the delivery hose is connected to a small water pump.

[0017] Preferably, a detection probe for detecting natural gas data is inserted into the exhaust pipe, and the detection probe is connected to a signal processor fixedly installed on the upper surface of the outer box through a wire.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the anti-clogging natural gas production water drainage desander adopts a new structural design, the specific contents of which are as follows: 1. The natural gas extracted from underground is transported to the outer box through the air intake pipe. At this time, the solid impurities in the natural gas are filtered by the pre-filter inside the outer box. After that, the natural gas passes through the condensation plate to remove part of the water by the condensation effect. Then, the solid impurities in the natural gas are filtered again by the lower filter and the upper filter. At the same time, the water-absorbing sponge absorbs the remaining water in the natural gas, and finally achieves the purpose of complete drainage and sand removal; Furthermore, the upper filter screen is squeezed by the rotation of the squeezing cam roller, so that the upper filter screen squeezes the water-absorbing sponge, thereby squeezing out the water in the water-absorbing sponge, ensuring its subsequent water absorption effect, and the squeezed water falls to the bottom of the outer box body. At the same time, the upper filter screen squeezes the storage liquid capsule, and the storage liquid capsule is used to suck and discharge the squeezed water through the heat exchange tube, so that the heat exchange tube is used to cool the condensation plate, ensuring the condensation effect of the condensation tube; Furthermore, the storage air bag will be squeezed during the up and down movement of the upper filter. When the storage air bag is squeezed, the air inside is discharged from the recoil nozzle through the connecting hose, thereby recoil cleaning the pre-filter to avoid blockage during use. When the extrusion cam roller rotates, the reciprocating screw rod is driven by the transmission belt to rotate, so that the reciprocating screw rod drives the recoil nozzle to move back and forth, thereby expanding its recoil range and achieving a comprehensive cleaning effect.

[0019] 2. After using the device, turn on the small water pump, and use the small water pump to discharge the water at the bottom of the outer box (water separated from natural gas) from the flushing nozzle through the delivery hose, and use the water flow to thoroughly clean the pre-filter, and finally discharge the sewage from the sewage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the outer box body of the present invention; Figure 3 This is a schematic diagram of the structure of the extrusion cam roller of the present invention; Figure 4 This is a schematic structural diagram of the positional relationship between the condensation plate and the connecting hole of the present invention; Figure 5 This is a schematic diagram of the installation position structure of the air storage bag and the liquid storage bag of the present invention; Figure 6 This is a schematic diagram of the connection relationship between the storage air bag and the recoil nozzle of the present invention; Figure 7 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 8 It is a schematic structural diagram of the connection relationship between the reciprocating screw rod and the extrusion cam roller of the present invention; Fig. 9 This is a schematic diagram of the structural relationship between the recoil nozzle and the pre-filter of the present invention; Fig.10 It is a schematic diagram of the lower surface structure of the pre-filter of the present invention.

[0021] In the figure: 1. outer box; 2. control panel; 3. air inlet pipe; 4. exhaust pipe; 5. sewage pipe; 6. first partition; 7. second partition; 8. pre-filter; 9. heating resistor; 10. connecting hole; 11. lower filter; 12. water-absorbing sponge; 13. upper filter; 14. condensing plate; 15. heat exchange tube; 16. refrigeration plate; 17. storage liquid bag; 18. extrusion cam roller; 19. storage air bag; 20. connecting hose; 21. recoil nozzle; 22. moving slider; 23. reciprocating screw rod; 24. transmission belt; 25. connecting plate; 26. vibration spring; 27. flushing nozzle; 28. delivery hose; 29. ​​small water pump; 30. detection probe; 31. signal processor. DETAILED DESCRIPTION

[0022] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 4 In order to achieve the purpose of desanding natural gas drainage, the embodiment of the present invention provides the following technical solutions, which specifically disclose: an outer box body 1 with a square structure, a control panel 2 is fixedly installed on the outer surface of the front side of the outer box body 1, and an air intake pipe 3 connected to the outer box body 1 is fixedly installed on the left side of the outer box body 1, and an exhaust pipe 4 is fixedly installed on the right side of the upper surface of the outer box body 1, a sewage pipe 5 connected to the outer box body 1 is fixedly installed on the left end of the outer surface of the front side of the outer box body 1, and a first partition plate 6 is fixedly installed on the left end of the inner part of the outer box body 1, and the first partition plate 6 is a "7"-shaped structure as a whole, a second partition plate 7 is fixedly installed on the right side of the inner part of the outer box body 1, a pre-filter 8 is installed inside the upper end of the first partition plate 6, and a heating resistor 9 for heating the natural gas produced is fixedly installed at the lower end of the first partition plate 6, and a matrix-arranged connecting wire is opened through the lower end of the second partition plate 7. Through hole 10, and a condensation mechanism for initially removing moisture is installed on the right side surface of the lower end of the second partition 7, the condensation mechanism includes a condensation plate 14 fixedly installed on the right outer surface of the second partition 7, and the condensation plates 14 are evenly arranged at equal intervals and correspond to the positions of the connecting holes 10, and a heat exchange tube 15 is installed through the inside of the condensation plate 14, a detection probe 30 for detecting natural gas data is inserted into the exhaust pipe 4, and the detection probe 30 is connected to a signal processor 31 fixedly installed on the upper surface of the outer box body 1 through a wire, a transversely arranged lower filter screen 11 is fixedly installed on the right end inside the outer box body 1, and a water-absorbing sponge 12 with a cylindrical structure is fixedly installed on the upper surface of the lower filter screen 11, and an upper filter screen 13 is fixedly installed on the upper surface of the water-absorbing sponge 12, and the upper filter screen 13 is slidably connected to the outer box body 1.

[0024] When using the device, first connect the air intake pipe 3 to the pipeline of the natural gas extraction equipment. At this time, the extracted natural gas enters the outer box 1 through the air intake pipe 3. The natural gas first passes through the pre-filter 8 at the upper end of the first partition 6. The pre-filter 8 is used to filter out solid impurities in the natural gas (such as sand and gravel, the pre-filter 8 can filter out 90% of impurities). The filtered natural gas passes through the connecting hole 10 to reach the condensation plate 14. The condensation plate 14 is used to condense the moisture in the natural gas to form water droplets (when the initial temperature of the natural gas is low, it can be slightly heated by the heating resistor 9 to facilitate subsequent condensation). After that, the natural gas passes through the lower filter 11, the water-absorbing sponge 12 and the upper filter 13 in sequence. The lower filter 11 and the upper filter 13 are used to filter the solid impurities again to completely remove the sand. The water-absorbing sponge 12 absorbs the water again to completely remove the water. Finally, the natural gas that has been drained and desanded is discharged and collected in the exhaust pipe 4. In this process, the detection probe 30 inserted into the exhaust pipe 4 cooperates with the signal processor 31 to detect the purity of the natural gas.

[0025] Example 2: Please refer to Figure 5-Figure 7 In order to achieve the purpose of ensuring the condensation effect of the condensation plate 14, the embodiment of the present invention provides the following technical solutions, which specifically disclose: a refrigeration plate 16 for cooling the condensed water is arranged directly below the condensation plate 14, and the refrigeration plate 16 is fixedly installed on the lower surface of the inner part of the outer box body 1, and the upper end of the heat exchange tube 15 is connected to the storage liquid capsule 17, the storage liquid capsule 17 is fixedly installed between the lower filter screen 11 and the upper filter screen 13, and a storage air bag 19 is also fixedly installed between the upper filter screen 13 and the lower filter screen 11, and an extrusion cam roller 18 rotatably installed inside the outer box body 1 is arranged above the upper filter screen 13.

[0026] During the use of the device, the motor outside the outer box body 1 periodically drives the extrusion cam roller 18 to rotate. During the rotation, the extrusion cam roller 18 squeezes the upper filter screen 13 below it, so that the upper filter screen 13 squeezes the water-absorbing sponge 12, thereby squeezing out the water in the water-absorbing sponge 12, and the squeezed water falls to the inner bottom end of the outer box body 1 (i.e., below the condensation plate 14), and then the upper filter screen 13 squeezes the storage liquid capsule 17 when moving up and down again, and cooperates with the elastic action of the storage liquid capsule 17 to suck and discharge water (i.e., the water squeezed out of the water-absorbing sponge 12 and the water droplets dripping on the condensation plate 14, and the refrigeration plate 16 is turned on when necessary to cool the water to ensure its heat exchange effect) through the heat exchange tube 15, so that the flowing water is used to cool the condensation plate 14 to ensure the subsequent condensation effect of the condensation plate 14.

[0027] Example 3: Please refer to Figure 8-Figure 10In order to solve the problem of clogging of the traditional device during use, the embodiment of the present invention provides the following technical solutions, using the recoil mechanism to recoil and clean the pre-filter 8 to avoid clogging, specifically disclosed: a recoil mechanism for cleaning the pre-filter 8 is arranged above the first partition plate 6, the recoil mechanism includes a recoil nozzle 21 installed above the pre-filter 8, and the recoil nozzle 21 slides in contact with the upper surface of the pre-filter 8, and a moving slider 22 for driving the recoil nozzle 21 is fixedly installed above the recoil nozzle 21, and a reciprocating screw 23 rotatably connected to the outer box body 1 is installed inside the moving slider 22 through a thread, and the reciprocating screw 23 is connected to the outer box body 1 through a transmission installed at its rear end. The moving belt 24 rotates synchronously with the extrusion cam roller 18, a connecting hose 20 for supplying air to the recoil nozzle 21 is fixedly installed above the recoil nozzle 21, and the rear end of the connecting hose 20 is connected to the storage air bag 19, an up and down sliding structure is formed between the pre-filter 8 and the first partition 6, and a connecting plate 25 is fixedly installed on the lower surface of the pre-filter 8, and a vibration spring 26 is fixedly installed between the connecting plate 25 and the first partition 6, a flushing nozzle 27 is fixedly installed on the outer surface of the right side of the first partition 6, and a delivery hose 28 is fixedly installed on the outside of the flushing nozzle 27, the bottom end of the delivery hose 28 passes through the lower end of the second partition 7, and the delivery hose 28 is connected to a small water pump 29.

[0028] During the up and down movement of the upper filter 13, the storage air bag 19 will also be squeezed. When the storage air bag 19 is squeezed, the air inside will be ejected from the recoil nozzle 21 through the connecting hose 20, and the pre-filter 8 will be recoiled by the airflow to achieve the purpose of clearing the blockage. When the pre-filter 8 is impacted by the airflow, it will move downward for a short distance, and then reset under the elastic action of the vibration spring 26. This reciprocating movement makes the pre-filter 8 vibrate up and down, thereby improving the effect of clearing the blockage. During the rotation of the extrusion cam roller 18, the reciprocating screw 23 is driven to rotate through the transmission belt 24. During the rotation of the reciprocating screw 23, the moving slider 22 installed with a thread passing through the outside thereof is driven to reciprocate, so that the moving slider 22 drives the recoil nozzle 21 to move, thereby expanding the cleaning range. When the device is used up, the small water pump 29 is turned on, so that the small water pump 29 transports water (i.e., water separated from natural gas) to the flushing nozzle 27 through the delivery hose 28 for spraying, thereby cleaning the pre-filter 8.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural gas production drainage desander with an anti-clogging function, comprising an outer box (1) with a square structure, a control panel (2) fixedly mounted on the front outer surface of the outer box (1), an air intake pipe (3) connected to the outer box (1) fixedly mounted on the left side of the outer box (1), and an exhaust pipe (4) fixedly mounted on the right side of the upper surface of the outer box (1), characterized in that: Also includes: A sewage pipe (5) in communication with the outer box body (1) is fixedly mounted on the left end of the front outer surface of the outer box body (1), and a first partition plate (6) is fixedly mounted on the left end of the interior of the outer box body (1), and the first partition plate (6) is in the shape of a "7" as a whole, and a second partition plate (7) is fixedly mounted on the right side of the interior of the outer box body (1); A pre-filter (8) is installed inside the upper end of the first partition (6), and a heating resistor (9) for heating the extracted natural gas is fixedly installed at the lower end of the first partition (6), and a recoil mechanism for cleaning the pre-filter (8) is arranged above the first partition (6); The lower end of the second partition (7) is penetrated by communication holes (10) arranged in a matrix, and a condensation mechanism for initially removing moisture is installed on the right surface of the lower end of the second partition (7); A lower filter screen (11) arranged transversely is fixedly mounted on the right end of the interior of the outer box (1), and a water-absorbing sponge (12) with a cylindrical structure is fixedly mounted on the upper surface of the lower filter screen (11), and an upper filter screen (13) is fixedly mounted on the upper surface of the water-absorbing sponge (12), and the upper filter screen (13) is slidably connected to the outer box (1) in an upward and downward manner.

2. The anti-clogging natural gas production water desander according to claim 1, characterized in that: The condensation mechanism comprises a condensation plate (14) fixedly mounted on the right outer surface of the second partition plate (7), wherein the condensation plates (14) are evenly arranged at equal intervals and correspond to the positions of the connecting holes (10), and a heat exchange tube (15) is installed through the interior of the condensation plate (14).

3. The anti-clogging natural gas production water desander according to claim 2, characterized in that: A refrigeration fin (16) for cooling condensed water is provided directly below the condensation plate (14), and the refrigeration fin (16) is fixedly mounted on the lower surface of the interior of the outer box (1), and the upper end of the heat exchange tube (15) and the storage liquid bag (17) are connected to each other.

4. The anti-clogging natural gas production water desander according to claim 3, characterized in that: The storage liquid bag (17) is fixedly mounted between the lower filter screen (11) and the upper filter screen (13), and a storage air bag (19) is also fixedly mounted between the upper filter screen (13) and the lower filter screen (11), and an extrusion cam roller (18) rotatably mounted inside the outer box (1) is provided above the upper filter screen (13).

5. The anti-clogging natural gas production water desander according to claim 1, characterized in that: The recoil mechanism comprises a recoil nozzle (21) mounted above the front filter (8), the recoil nozzle (21) and the upper surface of the front filter (8) being fitted and slidable, and a moving slider (22) is fixedly mounted above the recoil nozzle (21) for driving the recoil nozzle (21) to move.

6. The anti-clogging natural gas production water desander according to claim 5, characterized in that: A reciprocating screw (23) rotatably connected to the outer box body (1) is installed through a thread running through the interior of the movable slider (22), and the reciprocating screw (23) rotates synchronously with the extrusion cam roller (18) via a transmission belt (24) installed at the rear end thereof.

7. The anti-clogging natural gas production water desander according to claim 5, characterized in that: A connecting hose (20) for supplying air to the recoil nozzle (21) is fixedly mounted above the recoil nozzle (21), and a rear end of the connecting hose (20) is connected to the storage air bag (19).

8. The anti-clogging natural gas production water desander according to claim 5, characterized in that: An up-and-down sliding structure is formed between the pre-filter (8) and the first partition (6), a connecting plate (25) is fixedly mounted on the lower surface of the pre-filter (8), and a vibration spring (26) is fixedly mounted between the connecting plate (25) and the first partition (6).

9. The anti-clogging natural gas production water desander according to claim 1, characterized in that: A flushing nozzle (27) is fixedly mounted on the right outer surface of the first partition (6), and a delivery hose (28) is fixedly mounted outside the flushing nozzle (27), the bottom end of the delivery hose (28) passes through the lower end of the second partition (7), and the delivery hose (28) is connected to a small water pump (29).

10. The anti-clogging natural gas production water desander according to claim 1, characterized in that: A detection probe (30) for detecting natural gas data is inserted into the exhaust pipe (4), and the detection probe (30) is connected to a signal processor (31) fixedly mounted on the upper surface of the outer box (1) via a wire.

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