Adjustable exhaust valve for deep well in oil exploitation

Abstract

The invention provides an adjustable exhaust valve for a deep well in oil exploitation, and relates to the technical field of oil exploitation. The adjustable sealing cover is in threaded connection with the interior of the exhaust valve body, and two conical exhaust holes are formed in the adjustable sealing cover; two sets of auxiliary units are installed in the adjustable sealing cover and used for sealing the two conical exhaust holes in the adjustable sealing cover. An adjusting unit is installed on the adjustable sealing cover and used for adjusting the exhaust pressure. A dispersing unit is mounted on the adjustable sealing cover and the circular adjusting block, and is used for dispersing exhausted gas; when one switch is in a pressed state, the alarm works, so that a worker is conveniently reminded to add lubricating oil between the exhaust valve body and the adjustable sealing cover; the problems that when the exhaust valve needs to be maintained, reminding cannot be automatically sent out when the exhaust valve is adjusted, timely maintenance of the exhaust valve is not facilitated, and the service life of the exhaust valve is affected are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of oil exploitation, and more specifically, particularly relates to an adjustable exhaust valve for deep wells in oil exploitation. Background Art

[0002] Oil extraction refers to the act of digging and extracting oil from places where oil is stored; the exhaust valve can smoothly discharge the gas in the oil well, ensure the normal flow of gas inside the oil well, and avoid pipeline blockage caused by gas accumulation or damage to wellhead equipment due to excessive gas pressure.

[0003] The exhaust valves currently in use still have the following problems: 1. When the exhaust valve needs maintenance, it is impossible to automatically issue a reminder when adjusting the exhaust valve, which is not conducive to timely maintenance of the exhaust valve and affects the service life of the exhaust valve; 2. When maintaining the exhaust valve, the gas in the exhaust valve will still be discharged, increasing the safety hazard, and it is impossible to automatically prevent the discharge of gas when maintaining the exhaust valve. Summary of the invention

[0004] The disclosed embodiment relates to an adjustable exhaust valve for deep wells in oil production, which comprises an exhaust unit, an auxiliary unit, an adjustment unit, a prompt unit and a dispersion unit; when one of the switches is in a pressed state, an alarm operates to remind the staff to add lubricating oil between the exhaust valve body and the adjustable sealing cover; when the tops of the two limit retaining rings contact the bottoms of the two cross mounting frames, the outer walls of the two movable sealing plates contact the adjustable sealing cover, ensuring that no gas is discharged when the staff adds lubricating oil, thereby improving the safety during maintenance; and solving the problems of being unfavorable to the timely maintenance of the exhaust valve and the gas in the exhaust valve being discharged when the exhaust valve is maintained.

[0005] In a first aspect of the present disclosure, an adjustable exhaust valve for deep wells in oil production is provided, comprising: an exhaust unit; the exhaust unit comprises: an exhaust valve body and an adjustable sealing cover; the adjustable sealing cover is threadedly connected to the inside of the exhaust valve body, and two conical exhaust holes are provided on the adjustable sealing cover; two sets of auxiliary units are installed inside the adjustable sealing cover, and the two sets of auxiliary units are used to seal the two conical exhaust holes on the adjustable sealing cover; The adjustable sealing cover is provided with an adjusting unit, which is used to adjust the exhaust pressure; the adjusting unit comprises: a circular adjusting block, a rectangular limiting block A and a rectangular limiting block B; the circular adjusting block is rotatably mounted on the adjustable sealing cover; the rectangular limiting block A is fixedly mounted on the outside of the circular adjusting block; the rectangular limiting block B is fixedly mounted on the outside of the circular adjusting block; a prompting unit is mounted on the exhaust valve body and the rectangular limiting block B; a dispersing unit is mounted on the adjustable sealing cover and the circular adjusting block, and the dispersing unit is used to disperse the exhausted gas; The dispersion unit comprises: a circular hollow tube; two circular hollow tubes are provided, and the two circular hollow tubes are slidably mounted on the adjustable sealing cover.

[0006] In at least some embodiments, the exhaust unit further includes: a circular movable shaft; two circular movable shafts are provided, and the two circular movable shafts are slidably mounted on the adjustable sealing cover.

[0007] In at least some embodiments, the exhaust unit also includes: a movable ball and a support spring A; the movable ball is fixedly mounted on the bottom of two circular movable shafts, and the bottom of the movable ball is in contact with the inner wall of the exhaust valve body; there are two support springs A, and the two support springs A are sleeved on the outside of the two circular movable shafts, and the two support springs A are located between the adjustable sealing cover and the movable ball.

[0008] In at least some embodiments, the auxiliary unit includes: a cross mounting frame, a circular guide shaft and a movable sealing plate; the cross mounting frame is fixedly mounted inside the adjustable sealing cover; the circular guide shaft is slidably mounted on the cross mounting frame; and the movable sealing plate is fixedly mounted on the top of the circular guide shaft.

[0009] In at least some embodiments, the auxiliary unit also includes: a limit ring and a support spring B; the limit ring is fixedly installed on the bottom end of the circular guide shaft; when the top of the limit ring contacts the bottom of the cross mounting frame, the outer wall of the movable sealing plate contacts the adjustable sealing cover; the support spring B is sleeved on the outside of the circular guide shaft, and the support spring B is located between the cross mounting frame and the movable sealing plate.

[0010] In at least some embodiments, the rectangular stop block A is slidably connected to the adjustable sealing cover, and the rectangular stop block B is slidably connected to the adjustable sealing cover.

[0011] In at least some embodiments, the adjustment unit also includes: an arc-shaped mounting rod, a support bending spring A and a support bending spring B; the arc-shaped mounting rod is fixedly mounted on the adjustable sealing cover, and the arc-shaped mounting rod is also slidably connected to the rectangular limit block A; the support bending spring A is sleeved on the outside of the arc-shaped mounting rod; the support bending spring B is sleeved on the outside of the arc-shaped mounting rod, and the elastic force of the support bending spring B is less than the elastic force of the support bending spring A.

[0012] In at least some embodiments, the prompt unit includes: a lithium battery, an alarm and a switch; the lithium battery is fixedly mounted on the exhaust valve body; the alarm is fixedly mounted on the exhaust valve body, and the alarm is also electrically connected to the lithium battery; there are two switches in total, and the two switches are fixedly mounted inside the rectangular limit block B, and the two switches are electrically connected to the lithium battery and the alarm respectively; the alarm works when one of the switches is in a pressed state.

[0013] In at least some embodiments, the dispersion unit also includes: a conical air collecting hood; the bottoms of the two circular hollow tubes are in contact with the tops of the two movable sealing plates, and the two circular hollow tubes are concentrically arranged with the two movable sealing plates, and a circle of exhaust circular holes is provided at the bottom ends of the two circular hollow tubes respectively; the conical air collecting hood is fixedly installed on the tops of the two circular hollow tubes, and a circle of exhaust slots is provided on the top of the conical air collecting hood.

[0014] In at least some embodiments, the dispersion unit also includes: a connecting knob and a movable auxiliary cover; the connecting knob is rotatably mounted on the conical air collecting hood, and the bottom of the connecting knob is also threadedly connected to the circular adjustment block; the movable auxiliary cover is installed on the outside of the conical air collecting hood, and the inner wall of the movable auxiliary cover is in contact with the outer wall of the conical air collecting hood.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When the gas pressure generated during oil extraction is greater than a preset range, the gas generated during oil extraction can push the movable ball to automatically move upward, so that the gas flows through the gap between the movable ball and the exhaust valve body, thereby realizing automatic exhaust; when the gas pressure generated during oil extraction is less than the preset range, the movable ball automatically resets downward under the action of gravity and two supporting springs A.

[0016] 2. The present invention facilitates the staff to rotate the circular adjustment block by a hexagonal wrench. The setting of the rectangular limit block A and the rectangular limit block B has a limiting effect on the circular adjustment block, so that the circular adjustment block can only rotate; In addition, when the staff rotates the circular adjusting block clockwise with a wrench, the support spring A is compressed. When the elastic force of the compressed support spring A is greater than the friction between the exhaust valve body and the adjustable sealing cover, the adjustable sealing cover moves downward; when the staff rotates the circular adjusting block counterclockwise with a wrench, the support spring B is compressed. When the elastic force of the compressed support spring B is greater than the friction between the exhaust valve body and the adjustable sealing cover, the adjustable sealing cover moves upward, which is convenient for the staff to make appropriate adjustments according to actual conditions; the extra elastic force of the support spring A can overcome the excess friction caused by the support spring A, ensuring that the elastic force given by the support spring A when the adjustable sealing cover rotates clockwise is basically the same as the elastic force given by the support spring B when the adjustable sealing cover rotates counterclockwise; In addition, when the friction between the exhaust valve body and the adjustable sealing cover is large and the adjustable sealing cover rotates clockwise or counterclockwise, the adjustable sealing cover can press the corresponding switch. When one of the switches is in a pressed state, the alarm works, which is convenient for reminding the staff to add lubricating oil between the exhaust valve body and the adjustable sealing cover.

[0017] 3. According to the present invention, when the two circular hollow tubes are separated from the adjustable sealing cover, the two movable sealing plates automatically move upward under the action of the two supporting springs B, and when the tops of the two limit retaining rings contact the bottoms of the two cross mounting frames, the outer walls of the two movable sealing plates contact the adjustable sealing cover, ensuring that no gas is discharged when the staff adds lubricating oil, thereby improving the safety during maintenance; when the staff slides the two circular hollow tubes on the adjustable sealing cover and connects the bottom of the connecting knob with the circular adjusting block, the two circular hollow tubes push the two movable sealing plates to automatically move downward, and the gas in the exhaust valve body flows through the gap between the two movable sealing plates and the adjustable sealing cover, and then enters the conical gas collecting hood through two circles of exhaust circular holes and the two circular hollow tubes, and then is discharged through a circle of exhaust slots, which disperses the gas in the exhaust valve body, avoids the accumulation of oil and gas, and prevents safety accidents such as explosions; In addition, when the staff turns the connecting knob, the staff needs to press the movable auxiliary cover hard to ensure that the two circular hollow tubes are slidably installed on the adjustable sealing cover. At this time, the movable auxiliary cover seals the circle of exhaust slots to ensure that no gas is discharged when the staff turns the connecting knob, thereby improving the safety during maintenance. When the connecting knob is connected to the circular adjustment block, the staff's hand is separated from the movable auxiliary cover, and the gas pressure in the circle of exhaust slots can push the movable auxiliary cover to move upward automatically, so that the gas in the circle of exhaust slots is discharged through the gap between the conical gas collecting hood and the movable auxiliary cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0020] In the attached picture: Figure 1 A schematic diagram of the three-dimensional structure of the present invention is shown; Figure 2 The present invention is shown Figure 1 Schematic diagram of the transverse central section structure; Figure 3 A schematic diagram of the structure of the exhaust unit of the present invention is shown; Figure 4 The present invention is shown Figure 3 A schematic diagram of the local enlarged structure of the middle A area; Figure 5 The structure schematic diagram of the adjustable sealing cover and the adjusting unit of the present invention is shown; Figure 6 The present invention is shown Figure 5 A schematic diagram of the structure from a rear side perspective; Figure 7 The present invention is shown Figure 2 Schematic diagram of the cross-section structure in the middle BB direction; Figure 8 The present invention is shown Figure 7 Schematic diagram of the local enlarged structure of the middle C area; Fig. 9 The schematic diagram of the structure of the dispersion unit of the present invention is shown; Fig.10 The present invention is shown Figure 1 Schematic diagram of the longitudinal central section structure; Fig.11 The present invention is shown Fig.10 A schematic diagram of the local enlarged structure of the D area in the middle; Fig.12 The present invention is shown Figure 2 Schematic diagram of the local enlarged structure of area E in the middle.

[0021] List of reference numerals: 101. Exhaust valve body; 102. Adjustable sealing cover; 103. Circular movable shaft; 104. Movable sphere; 105. Support spring A; 201, cross mounting frame; 202, circular guide shaft; 203, movable sealing plate; 204, limit retaining ring; 205, support spring B; 301, circular adjustment block; 302, rectangular limit block A; 303, rectangular limit block B; 304, arc-shaped installation rod; 305, support spring A; 306, support spring B; 401, lithium battery; 402, alarm; 403, switch; 501, circular hollow tube; 5011, exhaust circular hole; 502, conical gas collecting hood; 5021, exhaust slot hole; 503, connecting knob; 504, movable auxiliary cover. DETAILED DESCRIPTION

[0022] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0023] Example: Please refer to Figures 1 to 12As shown: The present invention provides an adjustable exhaust valve for deep wells in petroleum exploitation, comprising: an exhaust unit; the exhaust unit comprises: an exhaust valve body 101 and an adjustable sealing cover 102; the adjustable sealing cover 102 is threadedly connected to the inside of the exhaust valve body 101, and two conical exhaust holes are provided on the adjustable sealing cover 102; two sets of auxiliary units are installed inside the adjustable sealing cover 102, and the two sets of auxiliary units are used to seal the two conical exhaust holes on the adjustable sealing cover 102; An adjusting unit is installed on the adjustable sealing cover 102, and the adjusting unit is used to adjust the exhaust pressure; the adjusting unit includes: a circular adjusting block 301, a rectangular limiting block A302 and a rectangular limiting block B303; the circular adjusting block 301 is rotatably installed on the adjustable sealing cover 102; the rectangular limiting block A302 is fixedly installed on the outside of the circular adjusting block 301; the rectangular limiting block B303 is fixedly installed on the outside of the circular adjusting block 301; a prompting unit is installed on the exhaust valve body 101 and the rectangular limiting block B303; a dispersing unit is installed on the adjustable sealing cover 102 and the circular adjusting block 301, and the dispersing unit is used to disperse the exhausted gas; The dispersion unit includes: a circular hollow tube 501 ; there are two circular hollow tubes 501 in total, and the two circular hollow tubes 501 are slidably mounted on the adjustable sealing cover 102 .

[0024] In the present disclosure, Figure 2 and Figure 3 As shown, the exhaust unit further includes: a circular movable shaft 103; there are two circular movable shafts 103, and the two circular movable shafts 103 are slidably mounted on the adjustable sealing cover 102; the exhaust unit further includes: a movable ball 104 and a support spring A105; the movable ball 104 is fixedly mounted on the bottom of the two circular movable shafts 103, and the bottom of the movable ball 104 is in contact with the inner wall of the exhaust valve body 101; there are two support springs A105, and the two support springs A105 are sleeved on the outside of the two circular movable shafts 103, and the two support springs A105 are located between the adjustable sealing cover 102 and the movable ball 104; Its specific function is as follows: because the movable sphere 104 is fixedly mounted on the bottom of the two circular movable shafts 103, and the bottom of the movable sphere 104 is in contact with the inner wall of the exhaust valve body 101, and the two supporting springs A105 are located between the adjustable sealing cover 102 and the movable sphere 104, when the gas pressure generated during oil extraction is greater than the preset range, the gas generated during oil extraction can push the movable sphere 104 to automatically move upward, so that the gas flows through the gap between the movable sphere 104 and the exhaust valve body 101, thereby realizing automatic exhaust; when the gas pressure generated during oil extraction is less than the preset range, the movable sphere 104 automatically resets downward under the action of gravity and the two supporting springs A105.

[0025] In the present disclosure, Figure 1 , Figure 5 , Figure 6 and Figure 8 As shown, the rectangular limit block A302 is slidably connected to the adjustable sealing cover 102, and the rectangular limit block B303 is slidably connected to the adjustable sealing cover 102; the adjustment unit also includes: an arc-shaped mounting rod 304, a support spring A305 and a support spring B306; the arc-shaped mounting rod 304 is fixedly mounted on the adjustable sealing cover 102, and the arc-shaped mounting rod 304 is also slidably connected to the rectangular limit block A302; the support spring A305 is sleeved on the outside of the arc-shaped mounting rod 304; the support spring B306 is sleeved on the outside of the arc-shaped mounting rod 304, and the elastic force of the support spring B306 is less than the elastic force of the support spring A305; The prompt unit includes: a lithium battery 401, an alarm 402 and a switch 403; the lithium battery 401 is fixedly mounted on the exhaust valve body 101; the alarm 402 is fixedly mounted on the exhaust valve body 101, and the alarm 402 is also electrically connected to the lithium battery 401; there are two switches 403, and the two switches 403 are fixedly mounted inside the rectangular limit block B303, and the two switches 403 are electrically connected to the lithium battery 401 and the alarm 402 respectively; when one of the switches 403 is in a pressed state, the alarm 402 works; The specific function is as follows: since the top of the circular adjustment block 301 is provided with a hexagonal groove, it is convenient for the staff to rotate the circular adjustment block 301 with a hexagonal wrench, and since the rectangular limit block A302 is fixedly installed on the outside of the circular adjustment block 301, and the rectangular limit block B303 is fixedly installed on the outside of the circular adjustment block 301, and the rectangular limit block A302 and the rectangular limit block B303 are both slidably connected to the adjustable sealing cover 102, the circular adjustment block 301 is limited, so that the circular adjustment block 301 can only rotate; In addition, because the arc-shaped mounting rod 304 is slidably connected with the rectangular limit block A302, and the support spring A305 is sleeved on the outside of the arc-shaped mounting rod 304, and the support spring B306 is sleeved on the outside of the arc-shaped mounting rod 304, when the staff rotates the circular adjustment block 301 clockwise with a wrench, the support spring A305 is compressed. When the elastic force of the compressed support spring A305 is greater than the friction between the exhaust valve body 101 and the adjustable sealing cover 102, the adjustable sealing cover 102 moves downward; when the staff rotates the circular adjustment block 301 counterclockwise with a wrench, the support spring B306 is compressed. When the elastic force of the support spring B306 after compression is greater than the friction between the exhaust valve body 101 and the adjustable sealing cover 102, the adjustable sealing cover 102 moves upward, which is convenient for the staff to make appropriate adjustments according to the actual situation; and because the elastic force of the support spring B306 is less than the elastic force of the support spring A305, the extra elastic force of the support spring A305 can overcome the excess friction caused by the support spring A105, ensuring that the elastic force given by the support spring A305 when the adjustable sealing cover 102 rotates clockwise is substantially the same as the elastic force given by the support spring B306 when the adjustable sealing cover 102 rotates counterclockwise; In addition, because the two switches 403 are fixedly installed inside the rectangular limit block B303, when the friction between the exhaust valve body 101 and the adjustable sealing cover 102 is large, and the adjustable sealing cover 102 rotates clockwise or counterclockwise, the adjustable sealing cover 102 can press the corresponding switch 403. Because the alarm 402 is electrically connected to the lithium battery 401, and the two switches 403 are electrically connected to the lithium battery 401 and the alarm 402 respectively, when one of the switches 403 is in a pressed state, the alarm 402 works, which is convenient for reminding the staff to add lubricating oil between the exhaust valve body 101 and the adjustable sealing cover 102.

[0026] In the present disclosure, Figure 4 , Fig. 9 , Fig.11 and Fig.12 As shown, the auxiliary unit includes: a cross mounting frame 201, a circular guide shaft 202 and a movable sealing plate 203; the cross mounting frame 201 is fixedly mounted inside the adjustable sealing cover 102; the circular guide shaft 202 is slidably mounted on the cross mounting frame 201; the movable sealing plate 203 is fixedly mounted on the top of the circular guide shaft 202; the auxiliary unit also includes: a limit ring 204 and a support spring B205; the limit ring 204 is fixedly mounted on the bottom end of the circular guide shaft 202; when the top of the limit ring 204 contacts the bottom of the cross mounting frame 201, the outer wall of the movable sealing plate 203 contacts the adjustable sealing cover 102; the support spring B205 is sleeved on the outside of the circular guide shaft 202, and the support spring B205 is located between the cross mounting frame 201 and the movable sealing plate 203; The dispersion unit 500 also includes: a conical air collecting hood 502; the bottoms of the two circular hollow tubes 501 are in contact with the tops of the two movable sealing plates 203, and the two circular hollow tubes 501 are concentrically arranged with the two movable sealing plates 203, and the bottom ends of the two circular hollow tubes 501 are respectively provided with a circle of exhaust circular holes 5011; the conical air collecting hood 502 is fixedly installed on the tops of the two circular hollow tubes 501, and the top of the conical air collecting hood 502 is provided with a circle of exhaust slots 5021; the dispersion unit 500 also includes: a connecting knob 503 and a movable auxiliary cover 504; the connecting knob 503 is rotatably installed on the conical air collecting hood 502, and the bottom of the connecting knob 503 is also threadedly connected to the circular adjustment block 301; the movable auxiliary cover 504 is installed on the outside of the conical air collecting hood 502, and the inner wall of the movable auxiliary cover 504 is in contact with the outer wall of the conical air collecting hood 502; Its specific function is as follows: because the bottom of the two circular hollow tubes 501 contacts the top of the two movable sealing plates 203, and the two circular hollow tubes 501 are concentrically arranged with the two movable sealing plates 203, and the two supporting springs B205 are located between the two cross mounting frames 201 and the two movable sealing plates 203, when the two circular hollow tubes 501 are separated from the adjustable sealing cover 102, the two movable sealing plates 203 automatically move upward under the action of the two supporting springs B205, and when the top of the two limit retaining rings 204 contacts the bottom of the two cross mounting frames 201, the outer walls of the two movable sealing plates 203 contact the adjustable sealing cover 102, ensuring that no gas will be discharged when the staff adds lubricating oil, thereby improving the safety during maintenance; and because the connecting knob 503 is turned to secure the It is installed on the conical air collecting hood 502, and the bottom of the connecting knob 503 is also threadedly connected to the circular adjusting block 301. When the staff slides the two circular hollow tubes 501 on the adjustable sealing cover 102 and connects the bottom of the connecting knob 503 to the circular adjusting block 301, the two circular hollow tubes 501 push the two movable sealing plates 203 to move downward automatically, and the gas in the exhaust valve body 101 flows through the gap between the two movable sealing plates 203 and the adjustable sealing cover 102, and then enters the conical air collecting hood 502 through two circles of exhaust circular holes 5011 and the two circular hollow tubes 501, and then is discharged through a circle of exhaust slots 5021, which disperses the gas in the exhaust valve body 101, avoids the accumulation of oil and gas, and prevents safety accidents such as explosions; In addition, because the movable auxiliary cover 504 is installed on the outside of the conical gas collecting hood 502, and the inner wall of the movable auxiliary cover 504 is in contact with the outer wall of the conical gas collecting hood 502, when the staff turns the connecting knob 503, the staff needs to press the movable auxiliary cover 504 hard to ensure that the two circular hollow tubes 501 are slidably installed on the adjustable sealing cover 102. At this time, the movable auxiliary cover 504 seals the circle of exhaust slots 5021 to ensure that no gas will be discharged when the staff turns the connecting knob 503, thereby improving the safety during maintenance; when the connecting knob 503 is connected to the circular adjustment block 301, when the staff's hand is separated from the movable auxiliary cover 504, the gas pressure in the circle of exhaust slots 5021 can push the movable auxiliary cover 504 to move upward automatically, so that the gas in the circle of exhaust slots 5021 is discharged through the gap between the conical gas collecting hood 502 and the movable auxiliary cover 504.

[0027] The specific usage and function of this embodiment are as follows: When the present invention is used, the staff first connects the exhaust valve body 101 to the oil extraction equipment through bolts. When the gas pressure generated during oil extraction is greater than the preset range, the gas generated during oil extraction can push the movable ball 104 to automatically move upward, so that the gas flows through the gap between the movable ball 104 and the exhaust valve body 101, thereby achieving automatic exhaust. When the gas pressure generated during oil extraction is less than the preset range, the movable ball 104 automatically resets downward under the action of gravity and two supporting springs A105. When it is necessary to adjust the exhaust pressure, the staff will adjust the corresponding type Insert a hexagonal wrench with the number 1 into the hexagonal groove on the circular adjusting block 301; when the staff rotates the circular adjusting block 301 clockwise with the wrench, the support spring A305 is compressed. When the elastic force of the compressed support spring A305 is greater than the friction between the exhaust valve body 101 and the adjustable sealing cover 102, the adjustable sealing cover 102 moves downward; when the staff rotates the circular adjusting block 301 counterclockwise with the wrench, the support spring B306 is compressed. When the elastic force of the compressed support spring B306 is greater than the friction between the exhaust valve body 101 and the adjustable sealing cover 102, the adjustable sealing cover 102 moves downward. The sealing cover 102 moves upward, which is convenient for the staff to make appropriate adjustments according to the actual situation; the extra elastic force of the support spring A305 can overcome the excess friction caused by the support spring A105, ensuring that the elastic force given by the support spring A305 when the adjustable sealing cover 102 rotates clockwise is basically the same as the elastic force given by the support spring B306 when the adjustable sealing cover 102 rotates counterclockwise; when the friction between the exhaust valve body 101 and the adjustable sealing cover 102 is large, and the adjustable sealing cover 102 rotates clockwise or counterclockwise, the adjustable sealing cover 102 can press the corresponding switch 403, and when one of them When the switch 403 is in the pressed state, the alarm 402 works, which is convenient for reminding the staff to add lubricating oil between the exhaust valve body 101 and the adjustable sealing cover 102; when the two circular hollow tubes 501 are separated from the adjustable sealing cover 102, the two movable sealing plates 203 automatically move upward under the action of the two supporting springs B205, and when the tops of the two limit retaining rings 204 contact the bottoms of the two cross mounting frames 201, the outer walls of the two movable sealing plates 203 contact the adjustable sealing cover 102, ensuring that no gas will be discharged when the staff adds lubricating oil, thereby improving the safety during maintenance;When the staff slides the two circular hollow tubes 501 onto the adjustable sealing cover 102 and connects the bottom of the connecting knob 503 to the circular adjusting block 301, the two circular hollow tubes 501 push the two movable sealing plates 203 to move downward automatically, and the gas in the exhaust valve body 101 flows through the gap between the two movable sealing plates 203 and the adjustable sealing cover 102, and then enters the conical gas collecting hood 502 through two circles of exhaust circular holes 5011 and the two circular hollow tubes 501, and then is discharged through a circle of exhaust slots 5021, which disperses the gas in the exhaust valve body 101, avoids the accumulation of oil and gas, and prevents safety accidents such as explosions; when the staff turns the connecting knob 503 , the staff needs to press the movable auxiliary cover 504 hard to ensure that the two circular hollow tubes 501 are slidably installed on the adjustable sealing cover 102. At this time, the movable auxiliary cover 504 seals the exhaust slots 5021, ensuring that no gas will be discharged when the staff turns the connecting knob 503, thereby improving the safety during maintenance; when the connecting knob 503 is connected to the circular adjustment block 301, when the staff's hand is separated from the movable auxiliary cover 504, the gas pressure in the exhaust slots 5021 can push the movable auxiliary cover 504 to automatically move upward, so that the gas in the exhaust slots 5021 can be discharged through the gap between the conical gas collecting cover 502 and the movable auxiliary cover 504. ;

[0028] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0029] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0030] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An adjustable exhaust valve for deep wells in petroleum production, comprising: An exhaust unit; characterized in that the exhaust unit comprises: an exhaust valve body (101) and an adjustable sealing cover (102); the adjustable sealing cover (102) is threadedly connected to the inside of the exhaust valve body (101), and two conical exhaust holes are provided on the adjustable sealing cover (102); two sets of auxiliary units are installed inside the adjustable sealing cover (102), and the two sets of auxiliary units are used to seal the two conical exhaust holes on the adjustable sealing cover (102); The adjustable sealing cover (102) is provided with an adjustment unit, and the adjustment unit is used to adjust the exhaust pressure; the adjustment unit comprises: a circular adjustment block (301), a rectangular limit block A (302), and a rectangular limit block B (303); the circular adjustment block (301) is rotatably mounted on the adjustable sealing cover (102); the rectangular limit block A (302) is fixedly mounted on the outside of the circular adjustment block (301); the rectangular limit block B (303) is fixedly mounted on the outside of the circular adjustment block (301); a prompt unit is installed on the exhaust valve body (101) and the rectangular limit block B (303); a dispersion unit is installed on the adjustable sealing cover (102) and the circular adjustment block (301), and the dispersion unit is used to disperse the exhausted gas; The dispersion unit comprises: a circular hollow tube (501); two circular hollow tubes (501) are provided in total, and the two circular hollow tubes (501) are slidably mounted on the adjustable sealing cover (102).

2. The adjustable exhaust valve for deep wells in petroleum production according to claim 1, characterized in that: The exhaust unit further comprises: a circular movable shaft (103); two circular movable shafts (103) are provided in total, and the two circular movable shafts (103) are slidably mounted on the adjustable sealing cover (102).

3. The adjustable exhaust valve for deep wells in petroleum production according to claim 2, characterized in that: The exhaust unit further comprises: a movable sphere (104) and a support spring A (105); the movable sphere (104) is fixedly mounted on the bottom of the two circular movable shafts (103), and the bottom of the movable sphere (104) contacts the inner wall of the exhaust valve body (101); two support springs A (105) are provided, and the two support springs A (105) are sleeved on the outside of the two circular movable shafts (103), and the two support springs A (105) are located between the adjustable sealing cover (102) and the movable sphere (104).

4. The adjustable exhaust valve for deep wells in petroleum production according to claim 1, characterized in that: The auxiliary unit comprises: a cross mounting frame (201), a circular guide shaft (202) and a movable sealing plate (203); the cross mounting frame (201) is fixedly mounted inside the adjustable sealing cover (102); the circular guide shaft (202) is slidably mounted on the cross mounting frame (201); and the movable sealing plate (203) is fixedly mounted on the top of the circular guide shaft (202).

5. The adjustable exhaust valve for deep wells in petroleum production according to claim 4, characterized in that: The auxiliary unit further comprises: a limit ring (204) and a support spring B (205); the limit ring (204) is fixedly mounted on the bottom end of the circular guide shaft (202); when the top of the limit ring (204) contacts the bottom of the cross mounting frame (201), the outer wall of the movable sealing plate (203) contacts the adjustable sealing cover (102); the support spring B (205) is sleeved on the outside of the circular guide shaft (202), and the support spring B (205) is located between the cross mounting frame (201) and the movable sealing plate (203).

6. The adjustable exhaust valve for deep wells in petroleum production according to claim 1, characterized in that: The rectangular limit block A (302) is slidably connected to the adjustable sealing cover (102), and the rectangular limit block B (303) is slidably connected to the adjustable sealing cover (102).

7. The adjustable exhaust valve for deep wells in petroleum production according to claim 6, characterized in that: The adjustment unit further comprises: an arc-shaped mounting rod (304), a support spring A (305) and a support spring B (306); the arc-shaped mounting rod (304) is fixedly mounted on the adjustable sealing cover (102), and the arc-shaped mounting rod (304) is also slidably connected to the rectangular limit block A (302); the support spring A (305) is sleeved on the outside of the arc-shaped mounting rod (304); the support spring B (306) is sleeved on the outside of the arc-shaped mounting rod (304), and the elastic force of the support spring B (306) is smaller than the elastic force of the support spring A (305).

8. The adjustable exhaust valve for deep wells in petroleum production according to claim 1, characterized in that: The prompt unit comprises: a lithium battery (401), an alarm (402) and a switch (403); the lithium battery (401) is fixedly mounted on the exhaust valve body (101); the alarm (402) is fixedly mounted on the exhaust valve body (101), and the alarm (402) is also electrically connected to the lithium battery (401); there are two switches (403) in total, and the two switches (403) are fixedly mounted inside the rectangular limit block B (303), and the two switches (403) are electrically connected to the lithium battery (401) and the alarm (402) respectively; when one of the switches (403) is in a pressed state, the alarm (402) operates.

9. The adjustable exhaust valve for deep wells in petroleum production according to claim 6, characterized in that: The dispersion unit (500) further includes: a conical air collecting hood (502); the bottoms of the two circular hollow tubes (501) are in contact with the tops of the two movable sealing plates (203), and the two circular hollow tubes (501) are concentrically arranged with the two movable sealing plates (203), and a circle of exhaust circular holes (5011) are respectively provided at the bottom ends of the two circular hollow tubes (501); the conical air collecting hood (502) is fixedly installed on the tops of the two circular hollow tubes (501), and a circle of exhaust slot holes (5021) are provided at the top of the conical air collecting hood (502).

10. The adjustable exhaust valve for deep wells in petroleum exploitation according to claim 9, characterized in that: The dispersion unit (500) further comprises: a connecting knob (503) and a movable auxiliary cover (504); the connecting knob (503) is rotatably mounted on the conical air collecting hood (502), and the bottom of the connecting knob (503) is also threadedly connected to the circular adjustment block (301); the movable auxiliary cover (504) is mounted on the outside of the conical air collecting hood (502), and the inner wall of the movable auxiliary cover (504) is in contact with the outer wall of the conical air collecting hood (502).

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