Operating device of ground well valve

Abstract

The invention provides an operation device of a ground well valve, and relates to the technical field of ground well valves, the operation device comprises a mounting plate, a lifting mechanism is mounted at the top of the mounting plate, a fixing plate is mounted at the top of the lifting mechanism, an adjusting mechanism is arranged on the fixing plate, and the adjusting mechanism is connected with a driving mechanism; the operating mechanism is installed on the adjusting mechanism. The lifting mechanism mounted at the top of the mounting plate is matched with the adjusting mechanism, so that horizontal and height adjustment of the working position of the operating mechanism can be realized; secondly, the driving mechanism is used for driving the operating mechanism to complete opening and closing of the ground well valve, the operating mechanism clamps an operated valve hand wheel through cooperation of a lever structure and an operating wrench, the operating mechanism is used for fixing the valve before operation, the actual operation position is lifted to the position above the ground well valve, and potential safety hazards caused by operation of the valve in the ground well with the limited space are avoided; manpower and material resource loss caused in the aspect is eliminated, and annual ground well valve operation loss cost of the whole plant is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of underground well valves, and in particular to an operating device for an underground well valve. Background Art

[0002] For power production companies, there are many pipelines hidden underground in each power plant, and the corresponding underground pipeline valves are produced. In order to better operate, many underground valves have set up special wells for easy operation, but the well space is small. As a confined space cover, it is easy to produce harmful gases or hypoxia when not operated for a long time, and there are many safety hazards when entering the operation. In order to avoid this situation, each power plant has established a special measure ticket for confined space to conduct ventilation and other inspections, which consumes a lot of manpower and material resources.

[0003] The prior art does not have an operating structure, and it is impossible to change the operating position of the underground well valve from underground to high-position operation on the ground. It is also impossible to avoid the potential safety hazards caused by operating the operating valve in the limited internal space of the underground well. It is also difficult to eliminate the detection steps before operating the underground well valve, and it will also cause loss of manpower and material resources. Therefore, it is urgent to design an operating device for the underground well valve to solve the above problems. Summary of the invention

[0004] The present invention provides an operating device for a well valve, which is used to solve at least one of the problems raised by the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention discloses an operating device for a ground well valve, comprising: a mounting plate, a lifting mechanism is installed on the top of the mounting plate, a fixed plate is installed on the top of the lifting mechanism, an adjusting mechanism is arranged on the fixed plate, and the adjusting mechanism is connected to a driving mechanism, and an operating mechanism is installed on the adjusting mechanism.

[0006] Preferably, a plurality of universal wheels are fixedly mounted on the circumferential side of the bottom of the mounting plate, and a slide groove 1 is embedded inside the mounting plate, a guide rod is slidably connected in the slide groove 1, the other end of the guide rod slides through the side wall of the slide groove 1 and is fixedly mounted with a fixed block, the fixed end of the electric telescopic rod 1 is fixedly mounted on the top of the fixed block, and a limit block is fixedly mounted on the telescopic end of the electric telescopic rod 1.

[0007] Preferably, the lifting mechanism includes an electric telescopic rod 2, the fixed end of which is fixedly mounted on the top of the mounting plate, the bottom of the fixed plate is fixedly connected to the telescopic end of the electric telescopic rod 2, two sliding sleeves are symmetrically fixedly mounted on the top of the mounting plate and the bottom of the fixed plate, and two sliders are respectively slidably connected in the two sliding sleeves through a spring, two hinge blocks are symmetrically fixedly mounted on the top of the mounting plate and the bottom of the fixed plate, the middle parts of the two connecting rods are hinged in a cross arrangement, and the two ends of the two connecting rods are hinged to the sliders and the hinge blocks in a one-to-one correspondence.

[0008] Preferably, the adjustment mechanism includes: a second slide groove, the second slide groove is embedded in the fixed plate, the rack is slidably connected in the second slide groove, the mounting sleeve is fixedly installed on one end of the rack, the top of the fixed plate is provided with a through hole one and a through hole two, the transmission gear is rotatably connected to the inner wall of the through hole one through a rotating shaft, the transmission gear is meshed with the rack, the driving motor is fixedly installed on the top of the fixed plate, the driving gear is fixedly installed on the output shaft of the driving motor, and the driving gear is meshed with the transmission gear.

[0009] Preferably, the driving mechanism includes: a mounting seat, the bottom of which slides through the second through hole and is fixedly mounted on one side of the top of the rack, a servo motor is fixedly mounted on the top of the mounting seat, a cam is fixedly mounted on the output shaft of the servo motor, and one end of the driving rod is hinged to the cam away from the center.

[0010] Preferably, the operating mechanism includes: a Z-shaped lever, the upper end of the Z-shaped lever is rotatably connected to the other end of the driving rod, and the lower end of the Z-shaped lever is rotated in turn to pass through the mounting sleeve and the fixed block and then fixedly connected to the mounting block, the mounting block is connected to a quick release assembly, both side walls of the mounting block are embedded with snap-in grooves, the operating wrench is installed on the quick release assembly, and the side walls of the Z-shaped lever are embedded with a plurality of limit grooves, and the limit grooves cooperate with the limit blocks.

[0011] Preferably, the quick-release assembly includes: an installation box, both side walls of the installation box are embedded with a shell, one end of two clamping blocks slide through the side walls of the installation box respectively and are slidably connected in the shell, and the clamping blocks are fixedly connected to the inner wall of the shell through spring 2, one end of the pull rod slides through the side wall of the shell and is fixedly connected to the clamping blocks, and the operating wrench is installed at the bottom of the installation box.

[0012] Preferably, it also includes a gas emission detection device, which is used for the operating device of the ground well valve to detect the amount of gas discharged from the ground well to the outside when the ground well valve is operated, and the gas emission detection device includes: A pressure gauge, used to detect the pressure of the gas inside the underground well when the operating device of the underground well valve operates the underground well valve; A temperature sensor for detecting the temperature inside the ground well when the operating device of the ground well valve is operating the ground well valve; A speed sensor for detecting the wind speed outside the well when the operating device of the well valve is operating the well valve; A controller and an alarm, wherein the controller is electrically connected to the pressure gauge, the temperature sensor, the speed sensor and the alarm, and the controller controls the operation of the alarm based on the pressure gauge, the temperature sensor and the speed sensor.

[0013] Preferably, the controller controls the alarm to work based on the pressure gauge, temperature sensor and speed sensor, comprising the following steps: Step 1: Based on formula (1) and the detection values ​​of the pressure gauge and temperature sensor, calculate the discharge rate of the gas inside the well when the operating device of the well valve is operating the well valve. ; (1); in, It is the rate at which the gas inside the well is discharged to the outside when the operating device of the well valve is operating the well valve. is the emission coefficient of the gas, is the diameter of the wellhead, It is the gas pressure detection value inside the underground well when the pressure gauge is operating the underground well valve on the operating device of the underground well valve. is the molar mass of the gas, is the gas constant, It is the detection value of the internal temperature of the underground well when the temperature sensor is in the operating device of the underground well valve to operate the underground well valve. is the heat capacity ratio of the gas, is the atmospheric pressure outside the well; Step 2: According to the following formula (2) and the detection value of the speed sensor, calculate the concentration of the gas discharged from the well when the operating device of the well valve is operating the well valve. The controller compares the concentration of the gas discharged from the well when the operating device of the well valve is operating the well valve. If the concentration of the gas discharged from the well is within the preset range, and the operating device of the well valve is in a state where the concentration of the gas discharged from the well is When the concentration of gas discharged from the well exceeds the preset range, the controller controls the alarm to sound an alarm; (2); in, The concentration of gas discharged from the well when the operating device of the well valve is operating the well valve. is the gas lateral diffusion coefficient, is the longitudinal diffusion coefficient of the gas, is the height of the well, It is the detection value of the wind speed outside the underground well when the speed sensor is in the operating device of the underground well valve to operate the underground well valve.

[0014] The operating device of a ground well valve provided by the present invention has the following beneficial effects compared with the prior art: 1. The operating device of the above-mentioned ground well valve works together through the provided lifting mechanism, adjusting mechanism and driving mechanism, and cooperates with the operating mechanism to operate the ground well valve. The operating mechanism is provided with a lever structure, and the operating wrench is used to clamp the operated valve handwheel, thereby forming a stable structure with the valve handwheel to achieve fixation before the valve is operated. By operating the Z-type lever at the connection of the wrench, the actual operating position is raised above the ground well valve, which can avoid operating the valve inside the ground well with limited space.

[0015] 2. Through the lever structure set up by the operating mechanism, the operating position of the ground well valve is changed from underground to high-position operation on the ground, avoiding the potential safety hazards caused by operating the valve inside the ground well with limited space, ensuring the safety of personnel, and at the same time eliminating the inspection steps before operating the ground well valve, eliminating the manpower and material resources loss caused by this aspect, and reducing the annual ground well valve operation loss cost of the whole plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of an operating device for a ground well valve provided by an embodiment of the present invention; Figure 2 A schematic structural diagram of a quick-release assembly of an operating device for a ground well valve provided by an embodiment of the present invention; Figure 3 A schematic structural diagram of the connection between an operating wrench of an operating device for a ground well valve provided by an embodiment of the present invention and the ground well valve.

[0018] Reference numerals: 1. Mounting plate; 2. Lifting mechanism; 3. Fixed plate; 301. Through hole 1; 302. Through hole 2; 4. Adjusting mechanism; 5. Driving mechanism; 6. Operating mechanism; 7. Universal wheel; 8. Slide 1; 9. Guide rod; 10. Fixed block; 11. Electric telescopic rod 1; 12. Limit block; 13. Electric telescopic rod 2; 14. Sliding sleeve; 15. Sliding block; 16. Spring 1; 17. Articulated block; 18. Connecting rod; 19. Slide 2; 20. Rack; 21. Mounting sleeve; 22. Transmission gear; 23. Rotating shaft; 24. Driving motor; 25. Driving gear; 26. Mounting seat; 27. Servo motor; 28. Cam; 29. ​​Driving rod; 30. Z-type lever; 31. Mounting block; 32. Quick release assembly; 33. Snap-in groove; 34. Operating wrench; 35. Limiting groove; 36. Mounting box; 37. Shell; 38. Snap-in block; 39. Spring 2; 40. Pull rod; 41. Ground well valve; 42. Valve handwheel. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0020] The present invention provides the following embodiments Example 1 The embodiment of the present invention provides an operating device for a ground well valve, such as Figure 1 As shown, it includes: a mounting plate 1, a lifting mechanism 2 is installed on the top of the mounting plate 1, a fixing plate 3 is installed on the top of the lifting mechanism 2, an adjusting mechanism 4 is arranged on the fixing plate 3, and the adjusting mechanism 4 is connected to a driving mechanism 5, and an operating mechanism 6 is installed on the adjusting mechanism 4.

[0021] Preferably, a plurality of universal wheels 7 are fixedly installed on the bottom circumference of the mounting plate 1, and a slide groove 8 is embedded inside the mounting plate 1, a guide rod 9 is slidably connected in the slide groove 8, and the other end of the guide rod 9 slides through the side wall of the slide groove 8 and is fixedly installed with a fixed block 10, the fixed end of the electric telescopic rod 11 is fixedly installed on the top of the fixed block 10, and a limit block 12 is fixedly installed on the telescopic end of the electric telescopic rod 11.

[0022] Preferably, the lifting mechanism 2 includes an electric telescopic rod 13, the fixed end of the electric telescopic rod 13 is fixedly installed on the top of the mounting plate 1, the bottom of the fixed plate 3 is fixedly connected to the telescopic end of the electric telescopic rod 13, two sliding sleeves 14 are symmetrically fixedly installed on the top of the mounting plate 1 and the bottom of the fixed plate 3, and two sliders 15 are slidingly connected in the two sliding sleeves 14 through springs 16, respectively, and two hinge blocks 17 are symmetrically fixedly installed on the top of the mounting plate 1 and the bottom of the fixed plate 3, the middle parts of the two connecting rods 18 are hinged in a cross arrangement, and the two ends of the two connecting rods 18 are hinged to the sliders 15 and the hinge blocks 17 one by one.

[0023] Preferably, the adjustment mechanism 4 includes: a second slide groove 19, the second slide groove 19 is embedded in the fixed plate 3, the rack 20 is slidably connected in the second slide groove 19, the mounting sleeve 21 is fixedly installed on one end of the rack 20, the top of the fixed plate 3 is provided with a through hole 1 301 and a through hole 2 302, the transmission gear 22 is rotatably connected to the inner wall of the through hole 1 301 through a rotating shaft 23, the transmission gear 22 is meshed with the rack 20, the drive motor 24 is fixedly installed on the top of the fixed plate 3, the drive gear 25 is fixedly installed on the output shaft of the drive motor 24, and the drive gear 25 is meshed with the transmission gear 22.

[0024] The working principle and beneficial effects of the above technical solution are: The operating device of the ground well valve of the present invention can realize the horizontal and height adjustment of the working position of the operating mechanism 6 through the lifting mechanism 2 installed on the top of the mounting plate 1 and the adjustment mechanism 4, so that the ground well valve 41 can be aligned more quickly and accurately; secondly, the driving mechanism 5 is used to drive the operating mechanism 6 to complete the opening and closing of the ground well valve 41. The operating mechanism 6 uses a lever structure to cooperate with the operating wrench 34 to clamp the operated valve handwheel 42, which is used for fixing the valve before operation, and raises the actual operating position to above the ground well valve 41, avoiding the safety hazards caused by operating the valve inside the ground well with limited space, eliminating the manpower and material losses caused by this aspect, and reducing the annual ground well valve operation loss cost of the whole plant.

[0025] When the lifting mechanism 2 adjusts the height of the adjustment mechanism 4 installed on the fixed plate 3, the electric telescopic rod 13 fixedly installed on the top of the mounting plate 1 is extended and retracted. The bottom of the fixed plate 3 is fixedly connected to the telescopic end of the electric telescopic rod 13. Two sliding sleeves 14 are fixedly installed symmetrically at the top of the mounting plate 1 and the bottom of the fixed plate 3, and two sliders 15 are respectively slidably connected in the two sliding sleeves 14 through springs 16. Two hinge blocks 17 are fixedly installed symmetrically at the top of the mounting plate 1 and the bottom of the fixed plate 3, and the middle parts of the two connecting rods 18 are hinged to form a cross. The electric telescopic rod 13 is arranged in a manner that the two ends of the two connecting rods 18 are respectively hinged to the slider 15 and the hinge block 17 in a one-to-one correspondence. As the electric telescopic rod 13 is extended and retracted, one end of the two connecting rods 18 is horizontally moved along the sliding sleeve 14 under the action of the slider 15. The spring 16 can provide effective support and buffering for the sliding of the connecting rod 18 in the sliding sleeve 14, and at the same time provide guidance for the telescopic adjustment of the electric telescopic rod 13, so that the adjustment mechanism 4 set on the fixed plate 3 is more stable when adjusting the height, and provides reliable support, and at the same time avoids shaking of the operating mechanism 6 when operating on the adjustment mechanism 4.

[0026] Secondly, the above-mentioned adjustment mechanism 4 can realize the installation, fixation and horizontal adjustment of the operating mechanism 6, thereby ensuring that the operating mechanism 6 can better operate the ground well valve. When horizontal adjustment is required, it is only necessary to start the drive motor 24, and the drive motor 24 drives the fixedly connected drive gear 25 to rotate, and the drive gear 25 is meshed with the transmission gear 22 for transmission, so that the transmission gear 22 rotates synchronously along the rotating shaft 23. At the same time, the transmission gear 22 is meshed with the rack 20 for transmission, so that the rack 20 moves horizontally along the slide groove 19, thereby driving the installation sleeve 21 fixedly connected to the rack 20 to achieve horizontal movement. The other end of the guide rod 9 slides through the side wall of the slide groove 8 and is fixedly installed with a fixing block 10, so that the Z-shaped lever 30 in the operating mechanism 6 moves left and right with the installation sleeve 21, while driving the fixing block 10 to move horizontally along the slide groove 8 under the action of the guide rod 9, which can ensure the reliable fixation and stable support of the Z-shaped lever 30 during the operation process. At the same time, the electric telescopic rod 11 embedded in the top of the fixing block 10 drives the limit block 12 to cooperate with different limit grooves 35 on the Z-shaped lever 30, thereby realizing the fixation of the working position of the Z-shaped lever 30 in the operating mechanism 6 on the operating device of the ground well valve.

[0027] Example 2 On the basis of Example 1, Figure 1-Figure 3As shown, the driving mechanism 5 includes: a mounting seat 26, the bottom of the mounting seat 26 slides through the second through hole 302 and is fixedly mounted on one side of the top of the rack 20, a servo motor 27 is fixedly mounted on the top of the mounting seat 26, a cam 28 is fixedly mounted on the output shaft of the servo motor 27, and one end of the driving rod 29 is hinged to the cam 28 away from the center.

[0028] Preferably, the operating mechanism 6 includes: a Z-shaped lever 30, the upper end of the Z-shaped lever 30 is rotatably connected to the other end of the driving rod 29, and the lower end of the Z-shaped lever 30 is rotated through the mounting sleeve 21 and the fixing block 10 in turn and is fixedly connected to the mounting block 31, the mounting block 31 is connected to a quick-release assembly 32, the two side walls of the mounting block 31 are embedded with snap-in grooves 33, the operating wrench 34 is installed on the quick-release assembly 32, and the side walls of the Z-shaped lever 30 are embedded with a plurality of limit grooves 35, and the limit grooves 35 cooperate with the limit block 12.

[0029] Preferably, the quick-release assembly 32 includes: an installation box 36, both side walls of the installation box 36 are embedded with a shell 37, one end of two clamping blocks 38 slide through the side walls of the installation box 36 and are slidably connected in the shell 37, and the clamping blocks 38 are fixedly connected to the inner wall of the shell 37 through a spring 2 39, one end of the pull rod 40 slides through the side wall of the shell 37 and is fixedly connected to the clamping blocks 38, and the operating wrench 34 is installed at the bottom of the installation box 36.

[0030] The working principle and beneficial effects of the above technical solution are: The driving mechanism 5 provided above can drive the operating mechanism 6 to open and close the well valve; the bottom of the mounting seat 26 slides through the second through hole 302 and is fixedly mounted on one side of the top of the rack 20, and the servo motor 27 is fixedly mounted on the top of the mounting seat 26. When working, the servo motor 27 fixedly mounted on the rack 20 through the mounting seat 26 moves to the working position along with the rack 20, and at the same time, the electric telescopic rod 11 drives the limit block 12 to fix the working position of the Z-type lever 30, and the Z-type lever 30 can be adjusted up and down, so that the upper end of the Z-type lever 30 can be sleeved on one end of the driving rod 29, and then the servo motor 27 drives the cam 28 Rotate, one end of the driving rod 29 is hinged with the cam 28 away from the center, so that the driving rod 29 drives the sleeved Z-type lever 30 to rotate along the mounting sleeve 21 and the fixing block 10 as the cam 28 rotates, and a stable structure is formed by the operating wrench 34 on the operating mechanism 6 and the valve handwheel 42 of the ground well valve 41, and the operating wrench 34 is a triangular operating wrench 34. The driving rod 29 cooperates with the operating mechanism 6 to complete the operation of the ground well valve 41. At the same time, the Z-type lever 30 in the operating mechanism 6 can be adjusted up and down in the operating device of the ground well valve to realize the retraction of the Z-type lever 30, which is convenient for the storage and transfer of the operating device of the ground well valve.

[0031] Secondly, a mounting block 31 is fixedly connected to the lower end of the Z-shaped lever 30, and a quick-release mechanism is connected to the mounting block 31. When the operating wrench 34 in the operating mechanism 6 needs to be replaced, one end of the two clamping blocks 38 slides through the side wall of the mounting box 36 and is slidably connected in the shell 37, and the clamping blocks 38 are fixedly connected to the inner wall of the shell 37 through the spring 2 39. One end of the pull rod 40 slides through the side wall of the shell 37 and is fixedly connected to the clamping block 38. By pulling the pull rod 40, the clamping blocks 38 slide to both sides along the inner wall of the shell 37, and the spring 39 is used to release the clamping block 38. When the second spring 39 is compressed, the clamping block 38 is moved out of the clamping groove 33 embedded in the mounting block 31, thereby separating the mounting block 31 from the operating wrench 34, and then selecting the operating wrench 34 of matching specifications for replacement, so that the operating mechanism 6 can better operate the ground well valve 41; when the replacement is completed, it is only necessary to insert the mounting block 31 into the mounting box 36, and after loosening the pull rod 40, the clamping block 38 and the clamping groove 33 are matched under the action of the elastic force of the second spring 39, thereby realizing the reliable fixation of the Z-type lever 30 and the operating wrench 34, and effectively improving the operating efficiency of the operating mechanism 6.

[0032] Example 3 On the basis of Embodiment 1 or 2, a gas emission detection device is further included, which is used for detecting the amount of gas discharged from the underground well to the outside when the operating device of the underground well valve operates the underground well valve 41. The gas emission detection device includes: A pressure gauge, used to detect the pressure of the gas inside the underground well when the operating device of the underground well valve operates the underground well valve 41; A temperature sensor for detecting the temperature inside the ground well when the ground well valve operating device is operating the ground well valve 41; A speed sensor for detecting the wind speed outside the ground well when the operating device of the ground well valve operates the ground well valve 41; A controller and an alarm, wherein the controller is electrically connected to the pressure gauge, the temperature sensor, the speed sensor and the alarm, and the controller controls the operation of the alarm based on the pressure gauge, the temperature sensor and the speed sensor.

[0033] Optionally, the gas is one of carbon monoxide, hydrogen sulfide, nitrogen dioxide, sulfur dioxide or methane.

[0034] Preferably, the controller controls the alarm to work based on the pressure gauge, temperature sensor and speed sensor, comprising the following steps: Step 1: According to formula (1) and the detection values ​​of the pressure gauge and the temperature sensor, calculate the discharge rate of the gas inside the well when the operating device of the well valve is operating the well valve 41. ; (1); in, is the rate at which the gas inside the well is discharged to the outside when the operating device of the well valve is operating the well valve 41, is the emission coefficient of the gas (usually taken as 0.61), is the diameter of the wellhead, It is the gas pressure detection value inside the underground well when the pressure gauge is operating the underground well valve 41 in the operating device of the underground well valve. is the molar mass of the gas (obtained by looking up the table), is the gas constant (usually taken as ), is the detection value of the temperature inside the underground well when the operating device of the underground well valve operates the underground well valve 41, is the heat capacity ratio of the gas (referring to the ratio of the heat capacity at constant pressure to the heat capacity at constant volume of the gas, generally 1.4-1.67), is the atmospheric pressure outside the well; Step 2: According to the following formula (2) and the detection value of the speed sensor, calculate the concentration of the gas discharged from the well when the operating device of the well valve operates the well valve 41 The controller compares the concentration of the gas discharged from the well when the operating device of the well valve is operating the well valve 41. If the concentration of the gas discharged from the well is within the preset range, and the concentration of the gas discharged from the well is When the concentration of gas discharged from the well exceeds the preset range, the controller controls the alarm to sound an alarm; (2); in, The concentration of the gas discharged from the ground well when the ground well valve operating device operates the ground well valve 41, is the height of the well, is the gas lateral diffusion coefficient (usually 0.8-1 ), is the longitudinal diffusion coefficient of the gas (usually 1-1.2 ), It is the detection value of the wind speed outside the underground well when the speed sensor is in the operating device of the underground well valve to operate the underground well valve 41.

[0035] The beneficial effects of the above technical solution are as follows: first, according to formula (1) and the detection values ​​of the pressure gauge and the temperature sensor, the leakage rate of the gas inside the well to the outside when the operating device of the well valve operates the well valve 41 is calculated. By comprehensively considering the gas emission coefficient, the diameter of the wellhead, the pressure of the gas inside the well when the operating device of the well valve operates the well valve 41, the molar mass of the gas, the gas constant, the temperature inside the well when the operating device of the well valve operates the well valve 41, the heat capacity ratio of the gas, and the atmospheric environment pressure outside the well, the calculation results are made more accurate and reliable.

[0036] Then, according to (2) and the detection value of the speed sensor, the concentration of the gas discharged from the well when the operating device of the well valve operates the well valve 41 is calculated. By comprehensively considering the lateral diffusion coefficient of the gas, the longitudinal diffusion coefficient of the gas, the height of the ground well, and the wind speed outside the ground well when the operating device of the ground well valve operates the ground well valve 41, the calculation results are made more accurate and reliable.

[0037] Secondly, the controller controls the alarm based on the pressure gauge, temperature sensor and speed sensor. If the current operating device of the underground well valve is operating the underground well valve 41, the concentration of the gas discharged from the underground well is When the concentration of the gas discharged from the ground well exceeds the preset range, the controller controls the alarm to sound, thereby reminding the staff to terminate the operation of the ground well valve 41 in time, and reminding the staff to stay away from the ground well mouth in time until the toxic gas in the ground well is discharged and the gas emission detection equipment stops alarming, and then the staff continues to operate the ground well valve 41. The above-mentioned operation not only ensures the normal operation of the ground well valve 41 by the operating device of the ground well valve, but also makes the operating device of the ground well valve safer and more reliable during the operation of the ground well valve 41. By real-time monitoring of the working status of the operating device of the ground well valve when operating the ground well valve 41, not only the steps of detecting toxic and harmful gases in the ground well before operating the ground well valve 41 are eliminated, but also the efficiency of the operating device of the ground well valve for operating the ground well valve 41 is improved, thereby avoiding safety hazards during the operation of the staff and ensuring the life safety of the staff.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An operating device for a ground well valve, characterized in that: include: A mounting plate (1), a lifting mechanism (2) is mounted on the top of the mounting plate (1), a fixing plate (3) is mounted on the top of the lifting mechanism (2), an adjusting mechanism (4) is arranged on the fixing plate (3), the adjusting mechanism (4) is connected to a driving mechanism (5), and an operating mechanism (6) is mounted on the adjusting mechanism (4).

2. The operating device of a well valve according to claim 1, characterized in that: A plurality of universal wheels (7) are fixedly mounted on the bottom periphery of the mounting plate (1), and a slide groove (8) is embedded inside the mounting plate (1), a guide rod (9) is slidably connected in the slide groove (8), the other end of the guide rod (9) slides through the side wall of the slide groove (8) and is fixedly mounted with a fixed block (10), the fixed end of the electric telescopic rod (11) is fixedly mounted on the top of the fixed block (10), and a limit block (12) is fixedly mounted on the telescopic end of the electric telescopic rod (11).

3. The operating device of a well valve according to claim 1, characterized in that: The lifting mechanism (2) comprises an electric telescopic rod (13), the fixed end of the electric telescopic rod (13) is fixedly mounted on the top of the mounting plate (1), the bottom of the fixed plate (3) is fixedly connected to the telescopic end of the electric telescopic rod (13), two sliding sleeves (14) are fixedly mounted symmetrically on the top of the mounting plate (1) and the bottom of the fixed plate (3), and two sliders (15) are respectively slidably connected in the two sliding sleeves (14) through springs (16), two hinge blocks (17) are fixedly mounted symmetrically on the top of the mounting plate (1) and the bottom of the fixed plate (3), the middle parts of the two connecting rods (18) are hinged in a cross arrangement, and the two ends of the two connecting rods (18) are respectively hinged to the sliders (15) and the hinge blocks (17) in a one-to-one correspondence.

4. The operating device of a well valve according to claim 1, characterized in that: The adjusting mechanism (4) comprises: a second slide groove (19), the second slide groove (19) is embedded in the fixed plate (3), the rack (20) is slidably connected in the second slide groove (19), the mounting sleeve (21) is fixedly mounted on one end of the rack (20), the top of the fixed plate (3) is provided with a first through hole (301) and a second through hole (302), the transmission gear (22) is rotatably connected to the inner wall of the first through hole (301) through a rotating shaft (23), the transmission gear (22) is meshed with the rack (20), the driving motor (24) is fixedly mounted on the top of the fixed plate (3), the driving gear (25) is fixedly mounted on the output shaft of the driving motor (24), and the driving gear (25) is meshed with the transmission gear (22).

5. The operating device of a well valve according to claim 4, characterized in that: The driving mechanism (5) comprises: a mounting seat (26), the bottom of the mounting seat (26) slides through the second through hole (302) and is fixedly mounted on one side of the top of the rack (20), a servo motor (27) is fixedly mounted on the top of the mounting seat (26), a cam (28) is fixedly mounted on the output shaft of the servo motor (27), and one end of the driving rod (29) is hinged to the cam (28) away from the center.

6. The operating device of a well valve according to claim 5, characterized in that: The operating mechanism (6) comprises: a Z-shaped lever (30), the upper end of the Z-shaped lever (30) is rotatably connected to the other end of the driving rod (29), and the lower end of the Z-shaped lever (30) is rotated to pass through the mounting sleeve (21) and the fixing block (10) in sequence and is fixedly connected to the mounting block (31), the mounting block (31) is connected to a quick-release assembly (32), the two side walls of the mounting block (31) are embedded with clamping grooves (33), the operating wrench (34) is installed on the quick-release assembly (32), and the side walls of the Z-shaped lever (30) are embedded with a plurality of limiting grooves (35), and the limiting grooves (35) cooperate with the limiting block (12).

7. The operating device of a well valve according to claim 6, characterized in that: The quick-release assembly (32) comprises: an installation box (36), both side walls of the installation box (36) are embedded with a shell (37), one end of two clamping blocks (38) respectively slides through the side walls of the installation box (36) and is slidably connected in the shell (37), and the clamping blocks (38) are fixedly connected to the inner wall of the shell (37) through a second spring (39), one end of the pull rod (40) slides through the side wall of the shell (37) and is fixedly connected to the clamping blocks (38), and the operating wrench (34) is installed at the bottom of the installation box (36).

8. The operating device of a well valve according to claim 1, characterized in that: It also includes a gas emission detection device, which is used for the operating device of the ground well valve to detect the amount of gas discharged from the ground well to the outside when the ground well valve (41) is operated, and the gas emission detection device includes: A pressure gauge for detecting the pressure of the gas inside the underground well when the operating device of the underground well valve operates the underground well valve (41); A temperature sensor for detecting the temperature inside the well when the operating device of the well valve is operating the well valve (41); A speed sensor for detecting the wind speed outside the underground well when the operating device of the underground well valve operates the underground well valve (41); A controller and an alarm, wherein the controller is electrically connected to the pressure gauge, the temperature sensor, the speed sensor and the alarm, and the controller controls the operation of the alarm based on the pressure gauge, the temperature sensor and the speed sensor.

9. The operating device of a well valve according to claim 8, characterized in that: The controller controls the alarm to work based on the pressure gauge, the temperature sensor and the speed sensor, including the following steps: Step 1: Based on formula (1) and the detection values ​​of the pressure gauge and the temperature sensor, calculate the discharge rate of the gas inside the well when the operating device of the well valve operates the well valve (41). ; （1）； in, is the rate at which the gas inside the well is discharged to the outside when the operating device of the well valve is operating the well valve (41), is the emission coefficient of the gas, is the diameter of the wellhead, is the gas pressure detection value inside the underground well when the pressure gauge is operating the underground well valve (41) at the operating device of the underground well valve, is the molar mass of the gas, is the gas constant, is the detected value of the temperature inside the underground well when the operating device of the underground well valve operates the underground well valve (41), is the heat capacity ratio of the gas, is the atmospheric pressure outside the well; Step 2: According to the following formula (2) and the detection value of the speed sensor, calculate the concentration of the gas discharged from the underground well when the operating device of the underground well valve operates the underground well valve (41) The controller compares the concentration of the gas discharged from the underground well when the operating device of the underground well valve is operating the underground well valve (41). If the concentration of the gas discharged from the well is within the preset range, and the concentration of the gas discharged from the well is When the concentration of gas discharged from the well exceeds the preset range, the controller controls the alarm to sound an alarm; （2）； in, The concentration of gas discharged from the underground well when the operating device of the underground well valve operates the underground well valve (41), is the gas lateral diffusion coefficient, is the longitudinal diffusion coefficient of the gas, is the height of the well, It is the detected value of the wind speed outside the underground well when the speed sensor operates the underground well valve (41) in the operating device of the underground well valve.

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