Intelligent control device for oil casing pressure of oil-water well

Abstract

The invention belongs to the technical field of oil-water well intelligent control, and particularly relates to an oil-water well oil casing pressure intelligent control device which comprises a connecting pipeline, a pressure release valve, a pressure sensor, a flow sensor and a temperature sensor are installed on the connecting pipeline, a control box is fixed to the surface of the connecting pipeline, and a box door is hinged to the front face of the control box. A display screen installed on the front face of the control box is arranged above the box door, and a first transverse plate and a second transverse plate are fixed in the control box. According to the intelligent control device for the oil casing pressure of the oil-water well, the connecting pipeline, the control box, the box door, the pressure release valve, a pressure sensor, a flow sensor, a temperature sensor, a PLC, a wireless transmission module, a storage battery, a mounting plate, a bracket, a photovoltaic panel and a cleaning mechanism are arranged; the device can monitor the pressure, the temperature and the flow of the pipeline at the wellhead of the oil field in real time, and the monitored and acquired data can be remotely uploaded to a background terminal under the action of the wireless transmission module.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent control of oil and water wells, and in particular to an intelligent control device for casing pressure of oil and water wells. Background Art

[0002] Petroleum refers to a mixture of gaseous, liquid and solid hydrocarbons. It is a viscous, dark brown liquid. There are two theories about the formation mechanism of petroleum: biological sedimentation and petrochemical oil. The former is more widely accepted, believing that petroleum is formed by organisms in ancient oceans or lakes after a long evolution, and belongs to biological sedimentation and is non-renewable; the latter believes that petroleum is generated by carbon in the earth's crust itself and has nothing to do with organisms. Renewable petroleum is mainly used as fuel and gasoline, and is also the raw material for many chemical industrial products, such as solutions, fertilizers, pesticides and plastics. In the process of oil extraction, in order to facilitate the control of the situation of fluid transportation inside the pipeline, a control device is needed. However, the current oil and water well control device can usually only control and adjust the flow rate of the fluid at the oil and water well during use. The functionality is single, and there are many inconveniences when the flow rate, temperature and other data of the fluid at the oil and water well are monitored and collected later. Therefore, we proposed an intelligent control device for oil and water well casing pressure to solve the above problems. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies of the prior art, the present invention provides an intelligent control device for oil casing pressure in oil and water wells, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] An intelligent control device for oil casing pressure in oil and water wells comprises a connecting pipe, on which a pressure relief valve, a pressure sensor, a flow sensor and a temperature sensor are installed, a control box is fixed on the surface of the connecting pipe, a box door is hinged on the front of the control box, a display screen installed on the front of the control box is arranged above the box door, a horizontal plate one and a horizontal plate two are fixed inside the control box, a PLC controller and a wireless transmission module are fixed on the top of the horizontal plate one, a battery is fixed on the top of the horizontal plate two, a mounting plate is arranged above the control box, two brackets are fixed on the top of the mounting plate, photovoltaic panels are installed on the top of the two brackets, a cleaning mechanism for cleaning dust adhered to the surface of the photovoltaic panel is arranged on the top of the mounting plate, a mounting seat is fixed on the surface of the connecting pipe, a T-shaped sealing plate adapted to the connecting pipe is slid inside the through opening opened on the top of the mounting seat, and a driving mechanism for driving the T-shaped sealing plate to fall quickly is arranged inside the control box.

[0008] Furthermore, the cleaning mechanism includes a shell fixed on the top of the mounting plate, the interior of the shell is rotatably connected to a rotating shaft through a bearing, a gear 1 is fixed to the surface of the rotating shaft, a reciprocating rack is slidably connected to the interior of a slide groove opened in the shell, the reciprocating rack is meshed with gear 1, two reciprocating rods matched with the reciprocating rack are arranged inside the shell, the reciprocating rods are both fitted with the reciprocating rack, a spring 1 is fixed on the reciprocating rod, the top end of the spring 1 is fixedly connected to the top inner wall of the shell, the top ends of the two reciprocating rods slide through the shell to extend above it and are fixed with a connecting rod matched with the photovoltaic panel.

[0009] Furthermore, the driving mechanism includes a support plate fixed inside the control box, two telescopic rods are fixed to the bottom of the support plate, the bottom ends of the telescopic rods are fixedly connected to the top of the T-shaped blocking plate, the outer surfaces of the telescopic rods are sleeved with spring 2, the top ends of the spring 2 are fixedly connected to the bottom of the support plate, the bottom ends of the spring 2 are fixedly connected to the top of the T-shaped blocking plate, and limit plates are slidably provided inside the two openings opened at the top of the support plate, and clamping plates matched with the limit plates are fixed on both side walls of the T-shaped blocking plate, and the clamping plates are respectively clamped on the corresponding limit plates, and a bidirectional moving mechanism for driving the two limit plates to move synchronously in opposite directions is provided on the top of the support plate.

[0010] Furthermore, the bidirectional moving mechanism includes a transmission shaft rotatably connected to the top of the support plate through a bearing, a transmission plate is fixed to the top of the transmission shaft, the top of the transmission plate is rotatably connected to two connecting rods through a pin shaft, and the other ends of the connecting rods are rotatably connected to the corresponding limit plates through pin shafts, an electric push rod is installed on the top inner wall of the control box through a fixed seat, a gear frame is fixed to the ejecting end of the electric push rod, and a gear 2 is fixed to the surface of the transmission shaft, and the gear 2 is meshed with the gear frame.

[0011] Furthermore, a limiting guide groove is provided on the top of the support plate, and the two limiting plates and the gear frame slide inside the limiting guide groove.

[0012] Furthermore, a positioning seat is fixed on the top of the control box, and positioning columns are slid inside the four through holes opened on the top of the positioning seat, and the top ends of the positioning columns are fixedly connected to the bottom of the mounting plate. Four damping buffers are fixed on the top of the control box, and the top ends of the damping buffers are fixedly connected to the bottom of the mounting plate.

[0013] Furthermore, a telescopic protective cover is fixed to the top of the control box, and the top of the telescopic protective cover is fixedly connected to the bottom of the mounting plate.

[0014] Furthermore, a dustproof net is fixed inside the heat dissipation opening opened at the back of the control box, and a waterproof shutter fixed on the control box is arranged on one side of the dustproof net.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides an intelligent control device for oil casing pressure in oil and water wells, which has the following beneficial effects:

[0017] The present invention, by setting connecting pipes, control boxes, box doors, pressure relief valves, pressure sensors, flow sensors, temperature sensors, PLC controllers, wireless transmission modules, batteries, mounting plates, brackets, photovoltaic panels and cleaning mechanisms, can monitor the pressure, temperature and flow at the wellhead pipeline of the oil field in real time during the use of the oil-water well oil casing pressure intelligent control device. The monitored and collected data can be remotely uploaded to the background terminal under the action of the wireless transmission module. Secondly, the control device has a photovoltaic power supply function. Photovoltaic power supply can provide a reliable power supply for the intelligent control device to ensure its normal operation. The cleaning mechanism can automatically clean the photovoltaic panels in the photovoltaic power supply to avoid the accumulation of a large amount of dust on the photovoltaic panels affecting their power generation efficiency.

[0018] The present invention provides a mounting seat, a T-shaped plugging plate and a driving mechanism. When the intelligent control device detects an abnormal situation such as leakage in the pipeline at the wellhead of the oil field, the driving mechanism will respond quickly and drive the T-shaped plugging plate to move downward to plug the connecting pipeline, so as to timely protect key equipment such as pumps and pipelines from damage and extend their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0021] Figure 3 This is a schematic diagram of the internal structure of the control box of the present invention;

[0022] Figure 4 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the driving mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the mounting plate structure of the present invention.

[0025] In the figure: 1. connecting pipe; 2. control box; 3. box door; 4. pressure relief valve; 5. pressure sensor; 6. flow sensor; 7. temperature sensor; 8. horizontal plate 1; 9. horizontal plate 2; 10. PLC controller; 11. wireless transmission module; 12. battery; 13. mounting plate; 14. bracket; 15. photovoltaic panel; 16. cleaning mechanism; 1601. housing; 1602. rotating shaft; 1603. gear 1; 1604. reciprocating rack; 1605. reciprocating rod; 1606. spring 1; 1607. connecting rod; 17. mounting seat; 18. T-type blocking plate ; 19. Driving mechanism; 1901. Support plate; 1902. Telescopic rod; 1903. Spring 2; 1904. Limiting plate; 1905. Card plate; 1906. Bidirectional moving mechanism; 190601. Transmission shaft; 190602. Transmission plate; 190603. Connecting rod; 190604. Electric push rod; 190605. Gear frame; 190606. Gear 2; 1907. Limiting guide groove; 20. Positioning seat; 21. Positioning column; 22. Damping buffer; 23. Telescopic protective cover; 24. Dustproof net; 25. Waterproof shutter; 26. Display screen. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, an intelligent control device for oil casing pressure of an oil-water well proposed in an embodiment of the present invention comprises a connecting pipe 1, on which a pressure relief valve 4, a pressure sensor 5, a flow sensor 6 and a temperature sensor 7 are installed, a control box 2 is fixed on the surface of the connecting pipe 1, a box door 3 is hinged on the front of the control box 2, a display screen 26 installed on the front of the control box 2 is arranged above the box door 3, a horizontal plate 1 8 and a horizontal plate 2 9 are fixed inside the control box 2, a PLC controller 10 and a wireless transmission module 11 are fixed on the top of the horizontal plate 1 8, a battery 12 is fixed on the top of the horizontal plate 2 9, a mounting plate 13 is arranged above the control box 2, two brackets 14 are fixed on the top of the mounting plate 13, and photovoltaic panels 1 are installed on the tops of the two brackets 14. 5, a cleaning mechanism 16 for cleaning dust adhered to the surface of the photovoltaic panel 15 is arranged on the top of the mounting plate 13, a mounting seat 17 is fixed on the surface of the connecting pipe 1, a T-shaped plugging plate 18 adapted to the connecting pipe 1 is slid inside the opening opened on the top of the mounting seat 17, and a driving mechanism 19 for driving the T-shaped plugging plate 18 to fall quickly is arranged inside the control box 2. When this oil and water well casing pressure intelligent control device is used, after it is installed in a suitable position, with the cooperation of the pressure sensor 5, the flow sensor 6 and the temperature sensor 7, the pressure inside the connecting pipe 1 and the flow rate and temperature of the fluid can be monitored, and the monitored data will be transmitted to the PLC controller 10, and then the PLC controller 10 will communicate with the PLC controller 10 through the wireless The transmission module 11 can send data to the back-end terminal so that the staff can perform remote control, and the monitoring data and the pressure data of the connecting pipe 1 will be displayed on the display screen 26 for the convenience of on-site staff to view. When the pressure inside the connecting pipe 1 exceeds the set value, the pressure relief operation can be performed through the pressure relief valve 4, and the pressure relief connecting pipe of the pressure relief valve 4 runs through the control box 2 and extends to the outside thereof. The control device is powered by photovoltaic power, and a cleaning mechanism 16 is provided on the mounting plate 13 supporting the photovoltaic panel 15. When the photovoltaic panel 15 is in use, the cleaning mechanism 16 can be used to drive the photovoltaic panel 15 to vibrate, thereby removing impurities such as dust and sand adhering to its surface. Shake off to prevent impurities from affecting the power generation efficiency of the photovoltaic panel 15. If an abnormal situation is detected inside the connecting pipe 1 later, the PLC controller 10 will control the drive mechanism 19 to start. After the drive mechanism 19 is started, the restriction on the T-shaped sealing plate 18 will be released. At this time, the T-shaped sealing plate 18 can quickly seal the connecting pipe 1. In order to enhance the tightness of the fit between the T-shaped sealing plate 18 and the mounting seat 17, a rubber sealing sleeve is fixed on the surface of the T-shaped sealing plate 18. Finally, since the electrical connection relationship between the PLC controller 10 and the pressure sensor 5, flow sensor 6, temperature sensor 7, photovoltaic panel 15 and battery 12 are all existing technologies, they will not be elaborated here.

[0029] like Figure 2 and Figure 4 As shown, in some embodiments, the cleaning mechanism 16 includes a shell 1601 fixed on the top of the mounting plate 13, the interior of the shell 1601 is rotatably connected to a rotating shaft 1602 through a bearing, a gear 1603 is fixed to the surface of the rotating shaft 1602, a reciprocating rack 1604 is slidably connected to the interior of a slide groove opened in the shell 1601, the reciprocating rack 1604 is meshed with the gear 1603, and two reciprocating rods 1605 adapted to the reciprocating rack 1604 are arranged inside the shell 1601, the reciprocating rods 1605 are both fitted with the reciprocating rack 1604, and a spring 1606 is fixed to the reciprocating rod 1605, and the top of the spring 1606 is both in contact with the top of the shell 1601. The inner wall is fixedly connected, and the top ends of the two reciprocating rods 1605 slide through the shell 1601 to extend above it and are fixed with a connecting rod 1607 that is compatible with the photovoltaic panel 15. When in use, the motor is started to drive the rotating shaft 1602 to rotate forward and reverse. After the rotating shaft 1602 rotates forward and reverse, it will drive the gear 1603 to rotate. After the gear 1603 rotates, it will drive the reciprocating rack 1604 to move back and forth. At this time, with the cooperation of the spring 1606 and the reciprocating rod 1605, the connecting rod 1607 can be driven to move up and down. When the connecting rod 1607 moves up to the maximum extent, it will knock on the photovoltaic panel 15 to make it vibrate, so that impurities such as dust and sand adhering to the surface of the photovoltaic panel 15 can be cleaned.

[0030] like Figure 3 and Figure 5 As shown, in some embodiments, the driving mechanism 19 includes a support plate 1901 fixed inside the control box 2, two telescopic rods 1902 are fixed to the bottom of the support plate 1901, the bottom ends of the telescopic rods 1902 are fixedly connected to the top of the T-shaped blocking plate 18, the outer surfaces of the telescopic rods 1902 are sleeved with springs 1903, the top ends of the springs 1903 are fixedly connected to the bottom of the support plate 1901, the bottom ends of the springs 1903 are fixedly connected to the top of the T-shaped blocking plate 18, the two openings opened at the top of the support plate 1901 are internally provided with sliding limit plates 1904, and the two side walls of the T-shaped blocking plate 18 They are all fixed with clamping plates 1905 that are compatible with the limiting plates 1904. The clamping plates 1905 are respectively clamped on the corresponding limiting plates 1904. The top of the support plate 1901 is provided with a bidirectional moving mechanism 1906 for driving the two limiting plates 1904 to move synchronously in opposite directions. When in use, the two limiting plates 1904 can be driven to move synchronously in opposite directions by the provided bidirectional moving mechanism 1906. After the limiting plates 1904 move, the restriction on the clamping plates 1905 will be released. At this time, under the reset force of the compressed spring 1903, the T-shaped sealing plate 18 can be driven to move down quickly to perform a sealing operation on the inside of the connecting pipe 1.

[0031] like Figure 5As shown, in some embodiments, the bidirectional moving mechanism 1906 includes a transmission shaft 190601 rotatably connected to the top of the support plate 1901 through a bearing, a transmission plate 190602 is fixed to the top of the transmission shaft 190601, and the top of the transmission plate 190602 is rotatably connected to two connecting rods 190603 through a pin shaft, and the other ends of the connecting rods 190603 are rotatably connected to the corresponding limit plates 1904 through pin shafts, and an electric push rod 190604 is installed on the top inner wall of the control box 2 through a fixed seat, and a tooth frame 190605 is fixed to the ejection end of the electric push rod 190604, and the transmission shaft 1 A gear 2 190606 is fixed on the surface of 90601, and the gear 2 190606 is meshed and connected with the tooth frame 190605. When in use, when the ejection end of the electric push rod 190604 pushes the tooth frame 190605 to move, the transmission shaft 190601 can be driven to rotate with the cooperation of the gear 2 190606. After the transmission shaft 190601 rotates, the two limit plates 1904 can be driven to move in the opposite direction with the cooperation of the connecting rod 190603. When the two limit plates 1904 need to be reset later, it is only necessary to start the electric push rod 190604 to drive the tooth frame 190605 to reset.

[0032] like Figure 5 As shown, in some embodiments, a limiting guide groove 1907 is opened on the top of the support plate 1901, and the two limiting plates 1904 and the tooth frame 190605 slide inside the limiting guide groove 1907, which can play a guiding and supporting role for the limiting plates 1904 and the tooth frame 190605, thereby making the two more stable during the sliding process.

[0033] like Figure 6 As shown, in some embodiments, a positioning seat 20 is fixed on the top of the control box 2, and positioning columns 21 are slid inside the four through holes opened on the top of the positioning seat 20, and the top ends of the positioning columns 21 are fixedly connected to the bottom of the mounting plate 13, and four damping buffers 22 are fixed on the top of the control box 2, and the top ends of the damping buffers 22 are fixedly connected to the bottom of the mounting plate 13. When in use, the damping buffers 22 can buffer and reduce shock on the mounting plate 13, so that when the cleaning mechanism 16 cleans the photovoltaic panel 15, it can avoid transmitting vibration to the control box 2, and the cooperation of the positioning seat 20 and the positioning columns 21 can play an auxiliary guiding role for the mounting plate 13.

[0034] like Figure 6 As shown, in some embodiments, a telescopic protective cover 23 is fixed to the top of the control box 2, and the top of the telescopic protective cover 23 is fixedly connected to the bottom of the mounting plate 13. The telescopic protective cover 23 can protect the damping buffer 22 to extend its service life.

[0035] like Figure 2As shown, in some embodiments, a dustproof net 24 is fixed inside the heat dissipation vent opened on the back of the control box 2, and a waterproof shutter 25 fixed to the control box 2 is provided on one side of the dustproof net 24. The dustproof net 24 can prevent dust and flocs in the external air from entering the interior of the control box 2 through the heat dissipation vent, thereby protecting the internal components from being affected, and the waterproof shutter 25 can further protect the heat dissipation vent opened in the control box 2, thereby preventing external rainwater from entering the interior of the control box 2 through the heat dissipation vent.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent control device for casing pressure of an oil and water well, comprising a connecting pipe (1), characterized in that: The connecting pipe (1) is provided with a pressure relief valve (4), a pressure sensor (5), a flow sensor (6) and a temperature sensor (7); a control box (2) is fixed on the surface of the connecting pipe (1); a door (3) is hinged on the front of the control box (2); a display screen (26) is arranged above the door (3) and is installed on the front of the control box (2); a first horizontal board (8) and a second horizontal board (9) are fixed inside the control box (2); a PLC controller (10) and a wireless transmission module (11) are fixed on the top of the first horizontal board (8); a storage battery (12) is fixed on the top of the second horizontal board (9); the control box (2) is provided with a plurality of control panels (14); and a plurality of control panels (15) are provided on the top of the second horizontal board (9). A mounting plate (13) is arranged above the connecting pipe (2), two brackets (14) are fixed on the top of the mounting plate (13), photovoltaic panels (15) are installed on the top of the two brackets (14), a cleaning mechanism (16) for cleaning dust adhering to the surface of the photovoltaic panel (15) is arranged on the top of the mounting plate (13), a mounting seat (17) is fixed on the surface of the connecting pipe (1), a T-shaped sealing plate (18) adapted to the connecting pipe (1) is slidably arranged inside the opening opened on the top of the mounting seat (17), and a driving mechanism (19) for driving the T-shaped sealing plate (18) to fall rapidly is arranged inside the control box (2).

2. The intelligent control device for oil casing pressure of oil and water wells according to claim 1 is characterized in that: The cleaning mechanism (16) comprises a shell (1601) fixed on the top of the mounting plate (13); a rotating shaft (1602) is rotatably connected to the inside of the shell (1601) via a bearing; a gear 1 (1603) is fixed to the surface of the rotating shaft (1602); a reciprocating rack (1604) is slidably connected to the inside of a slide groove provided in the shell (1601); the reciprocating rack (1604) is meshedly connected to the gear 1 (1603); and two gears are arranged inside the shell (1601). A reciprocating rod (1605) adapted to the reciprocating rack (1604), the reciprocating rods (1605) are fitted with the reciprocating rack (1604), a spring (1606) is fixed on the reciprocating rod (1605), the top end of the spring (1606) is fixedly connected to the top inner wall of the shell (1601), the top ends of the two reciprocating rods (1605) slide through the shell (1601) and extend to the top thereof and are fixed with a connecting rod (1607) adapted to the photovoltaic panel (15).

3. The intelligent control device for oil casing pressure of oil and water wells according to claim 1 is characterized in that: The driving mechanism (19) comprises a support plate (1901) fixed inside the control box (2); two telescopic rods (1902) are fixed at the bottom of the support plate (1901); the bottom ends of the telescopic rods (1902) are fixedly connected to the top of the T-shaped blocking plate (18); the outer surfaces of the telescopic rods (1902) are sleeved with springs (1903); the top ends of the springs (1903) are fixedly connected to the bottom of the support plate (1901); the bottom ends of the springs (1903) are fixedly connected to the T-shaped blocking plate (18); The top of the T-shaped blocking plate (18) is fixedly connected, and the two openings opened on the top of the support plate (1901) are both internally slid with limit plates (1904), and the two side walls of the T-shaped blocking plate (18) are fixed with clamping plates (1905) adapted to the limit plates (1904), and the clamping plates (1905) are respectively clamped on the corresponding limit plates (1904), and the top of the support plate (1901) is provided with a bidirectional moving mechanism (1906) for driving the two limit plates (1904) to move synchronously in opposite directions.

4. The intelligent control device for oil casing pressure of oil and water wells according to claim 3 is characterized in that: The bidirectional moving mechanism (1906) comprises a transmission shaft (190601) rotatably connected to the top of the support plate (1901) through a bearing, a transmission plate (190602) is fixed to the top of the transmission shaft (190601), the top of the transmission plate (190602) is rotatably connected to two connecting rods (190603) through a pin shaft, the other ends of the connecting rods (190603) are rotatably connected to the corresponding limit plates (1904) through pin shafts, an electric push rod (190604) is installed on the top inner wall of the control box (2) through a fixed seat, a tooth frame (190605) is fixed to the ejecting end of the electric push rod (190604), and a gear 2 (190606) is fixed to the surface of the transmission shaft (190601), and the gear 2 (190606) is meshedly connected with the tooth frame (190605).

5. The intelligent control device for oil casing pressure of oil and water wells according to claim 3 is characterized in that: A limiting guide groove (1907) is provided on the top of the support plate (1901), and the two limiting plates (1904) and the tooth frame (190605) all slide inside the limiting guide groove (1907).

6. The intelligent control device for oil casing pressure of oil and water wells according to claim 1 is characterized in that: A positioning seat (20) is fixed on the top of the control box (2), and positioning columns (21) are slidably arranged inside four through holes opened on the top of the positioning seat (20), and the top ends of the positioning columns (21) are fixedly connected to the bottom of the mounting plate (13). Four damping buffers (22) are fixed on the top of the control box (2), and the top ends of the damping buffers (22) are fixedly connected to the bottom of the mounting plate (13).

7. The intelligent control device for oil casing pressure of oil and water wells according to claim 6 is characterized in that: A telescopic protective cover (23) is fixed on the top of the control box (2), and the top of the telescopic protective cover (23) is fixedly connected to the bottom of the mounting plate (13).

8. The intelligent control device for oil casing pressure in oil and water wells according to claim 1 is characterized in that: A dustproof net (24) is fixed inside the heat dissipation opening on the back of the control box (2), and a waterproof shutter (25) fixed on the control box (2) is arranged on one side of the dustproof net (24).

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