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CN-224228648-U - Oil well casing air release valve

CN224228648UCN 224228648 UCN224228648 UCN 224228648UCN-224228648-U

Abstract

The utility model discloses an oil well casing air release valve, which comprises a protective box, wherein an air release unit is arranged on the inner side of the protective box, a PLC (programmable logic controller) controller is fixedly connected to the front side of the protective box, an alarm is fixedly connected to the upper side of the protective box, the air release unit comprises a first fixed cylinder, the first fixed cylinder is fixedly connected to the inner side of the protective box, a fixed pipe is fixedly connected to the outer side of the first fixed cylinder, a control box is fixedly connected to the right end of the fixed pipe, a connecting pipe is fixedly connected to the lower side of the control box, a second fixed cylinder is fixedly connected to the lower end of the connecting pipe, and a cannula is fixedly connected to the lower side of the first fixed cylinder. Through being provided with fixed section of thick bamboo first, fixed section of thick bamboo second, spring first, spring second, valve ball first, valve ball second, bleed pipe first, bleed pipe second, control box, conveniently switch the valve ball second in the fixed section of thick bamboo second and use after the long-time spring fatigue of bleed valve, make the bleed valve normal use, avoid the unbalance of oil well internal pressure.

Inventors

  • Sa feng
  • LI WEI

Assignees

  • 京安古贝(北京)科技有限公司

Dates

Publication Date
20260512
Application Date
20250701

Claims (8)

  1. 1. The utility model provides an oil well casing air release valve, includes protective housing (1), its characterized in that, the inboard of protective housing (1) is provided with gassing unit (4), the front side fixedly connected with PLC controller (2) of protective housing (1), the upside of protective housing (1) is fixedly connected with siren (3); the air release unit (4) comprises a first fixed cylinder (401), the first fixed cylinder (401) is fixedly connected to the inner side of the protective box (1), a fixed pipe (403) is fixedly connected to the outer side of the first fixed cylinder (401), a control box (404) is fixedly connected to the right end of the fixed pipe (403), a connecting pipe (414) is fixedly connected to the lower side of the control box (404), a second fixed cylinder (407) is fixedly connected to the lower end of the connecting pipe (414), an insertion pipe (402) is fixedly connected to the lower side of the first fixed cylinder (401), a second air release pipe (408) is fixedly connected to the outer side of the second fixed cylinder (407), a first air release pipe (405) is fixedly connected to the right side of the control box (404), a first spring (415) is fixedly connected to the inner side of the first spring (415), a second spring (417) is fixedly connected to the lower side of the second fixed cylinder (407), and a second valve ball (418) is fixedly connected to the lower side of the second spring (417).
  2. 2. The oil well casing air release valve according to claim 1, wherein a cover plate one (419) is arranged at the bottom of the inner side of the control box (404), a fixing rod (420) is fixedly connected to the upper side of the cover plate one (419), a cover plate two (421) is fixedly connected to the upper end of the fixing rod (420), an L-shaped block (422) is fixedly connected to the right side of the cover plate one (419), a rotating rod (410) is rotatably connected to the inner side of the control box (404), the rotating rod (410) is fixedly connected with the L-shaped block (422), the front end of the rotating rod (410) penetrates through the front side of the control box (404) and is fixedly connected with a rotary disc (411), a rotary plate (412) is fixedly connected to the outer side of the rotary disc (411), an electric push rod (413) is rotatably connected to the front side of the rotary plate (412), and the electric push rod (413) is rotatably connected with the control box (404).
  3. 3. An oil well casing deflating valve according to claim 2, characterised in that the electric push rod (413) is arranged for an inclined construction.
  4. 4. An oil well casing deflating valve according to claim 1, characterised in that the inside of the deflating pipe one (405) is provided with a gas pressure sensor (406).
  5. 5. An oil well casing gas release valve according to claim 1, characterized in that the outside of the gas release pipe two (408) is provided with a one-way valve (409).
  6. 6. An oil well casing deflating valve according to claim 1, characterised in that the right ends of the deflating pipe one (405) and the deflating pipe two (408) both pass through the right side of the protective casing (1).
  7. 7. An oil well casing deflating valve according to claim 1, characterised in that the underside of the cannula (402) passes through the underside of the protective housing (1).
  8. 8. An oil well casing deflating valve according to claim 1, characterised in that the first valve ball (416) is slidingly connected to the first fixed cylinder (401) and the second valve ball (418) is slidingly connected to the second fixed cylinder (407).

Description

Oil well casing air release valve Technical Field The utility model relates to the technical field of air release valves, in particular to an oil well casing air release valve. Background An oil well refers to a drilling project for producing underground oil and gas, and is one of the core facilities of the oil industry. The construction and operation of oil wells involves several links such as geological exploration, drilling, completion, oil recovery, maintenance, etc. Through the search, the Chinese patent with the application number of CN202322871228.5, in particular to an oil well casing air release valve, when in use, an adjusting nut is adjusted through the connection of the outer connecting part of a connecting seat and a wellhead device, and the compression amount of a spring is adjusted through a spring seat to apply acting force to a valve ball. When the pressure in the oil well is greater than the acting force of the spring, the spring is compressed by the pressure of the gas, the valve ball is pushed to leave the connecting seat by the pressure of the gas, and the gas with certain pressure enters the valve body and is released through the exhaust pipe. When the air release valve is used in the prior art, the spring is matched with the valve ball, so that the spring is compressed when the pressure in the oil well is high, gas is discharged, the pressure in the oil well is kept at a qualified value, when the pressure in the oil well is unstable, the spring is in a repeated stretching state, after the air release valve is used for a long time, the spring is easy to be in a fatigue state, the air release valve is continuously in an air release state, the pressure in the oil well is easy to be unbalanced, and exploitation of the oil well is not facilitated. Disclosure of utility model The utility model aims to provide an oil well casing air release valve, which solves the problems that a spring in the air release valve is easy to damage after being used for a period of time and the pressure in an oil well is unbalanced. In order to achieve the above purpose, the oil well casing air release valve comprises a protective box, wherein an air release unit is arranged on the inner side of the protective box, a PLC (programmable logic controller) is fixedly connected to the front side of the protective box, and an alarm is fixedly connected to the upper side of the protective box; The air release unit comprises a first fixed cylinder, the first fixed cylinder is fixedly connected to the inner side of the protective box, a fixed pipe is fixedly connected to the outer side of the first fixed cylinder, a control box is fixedly connected to the right end of the fixed pipe, a connecting pipe is fixedly connected to the lower side of the control box, a second fixed cylinder is fixedly connected to the lower end of the connecting pipe, an inserting pipe is fixedly connected to the lower side of the first fixed cylinder, an air release pipe II is fixedly connected to the outer side of the second fixed cylinder, an air release pipe I is fixedly connected to the right side of the control box, a first spring is fixedly connected to the inner side of the first fixed cylinder, a first valve ball is fixedly connected to the lower side of the first spring, a second spring is fixedly connected to the inner side of the second fixed cylinder, and a second valve ball is fixedly connected to the lower side of the second spring. According to the oil well casing air release valve, the bottom of the inner side of the control box is provided with a first cover plate, the upper side of the first cover plate is fixedly connected with a fixed rod, the upper end of the fixed rod is fixedly connected with a second cover plate, the right side of the first cover plate is fixedly connected with an L-shaped block, the inner side of the control box is rotationally connected with a rotating rod, the rotating rod is fixedly connected with the L-shaped block, the front end of the rotating rod penetrates through the front side of the control box and is fixedly connected with a rotating disc, the outer side of the rotating disc is fixedly connected with a rotating plate, and the front side of the rotating plate is rotationally connected with an electric push rod which is rotationally connected with the control box. According to the oil well casing air release valve, the electric push rod is arranged in an inclined structure. According to the oil well casing air release valve, an air pressure sensor is arranged on the inner side of the air release pipe I. According to the oil well casing air release valve, a one-way valve is arranged on the outer side of the air release pipe II. According to the oil well casing air release valve, the right ends of the air release pipe I and the air release pipe II penetrate through the right side of the protective box. According to the oil well casing air release valve, the lower side of the insertion pipe penet