An electro-hydraulic controlled isolation valve

Abstract

The present invention discloses an electro-hydraulic controlled isolation valve, which belongs to the technical field of petroleum operation equipment. The electro-hydraulic controlled isolation valve comprises an electric control component, a pressure balancing component, a hydraulic control component and an adjusting component. The electric control component is used for the normal operation of the control device, the pressure balancing component is installed on the electric control component, the hydraulic control component is installed on the electric control component, and the adjusting component is connected to the hydraulic control component. The valve has the advantages of stable balance, intelligent control, low energy consumption, flexible opening and closing, convenient operation, reliable operation and simplicity and practicality.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum operation equipment, and in particular to an electro-hydraulic controlled isolation valve. Background Art

[0002] As oilfield development moves towards unconventional operations, the requirements for oil and water wells and pressure operations are becoming increasingly higher. At the same time, it is also necessary to prevent the oil layer from being contaminated by the wellbore fluid. The isolation valve can effectively isolate the upper reservoir of the wellbore, reduce the contamination of the reservoir by the wellbore fluid at each operation stage, protect the formation and reduce the processing costs during the operation and production process after commissioning.

[0003] Existing isolation valves generally need to be used in conjunction with mechanical switching tools, but mechanical tools are inconvenient to operate, and intelligent control is a technical problem that relevant technicians urgently need to solve.

[0004] Therefore, it is necessary to provide an electro-hydraulic controlled isolation valve to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of an embodiment of the present invention is to provide an electro-hydraulic controlled isolation valve to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An electro-hydraulic controlled isolation valve comprises an electric control component, a pressure balancing component, a hydraulic control component and an adjusting component. The electric control component is used for controlling the normal operation of a device, the pressure balancing component is mounted on the electric control component, the hydraulic control component is mounted on the electric control component, and the adjusting component is connected to the hydraulic control component.

[0008] As a further solution of the present invention, the electronic control component includes:

[0009] A battery compartment, wherein the outer side of the battery compartment is connected to a battery compartment outer cylinder, and a plurality of batteries are circumferentially distributed between the battery compartment outer cylinder and the battery compartment;

[0010] An electronics compartment, the electronics compartment being disposed at one end of the battery compartment;

[0011] And a balancing inner cylinder, wherein the balancing inner cylinder is connected between the battery compartment and the electronic compartment.

[0012] As a further solution of the present invention, the pressure balance assembly includes:

[0013] An electronic compartment outer tube, which is sleeved on the outside of the electronic compartment, one end of which is connected to one end of the battery compartment through a threaded half sleeve, and the other end of which is connected to an abutment ring arranged on the outside of the electronic compartment;

[0014] A transition sealing ring connected between the outer cylinder of the electronic compartment and the inner cylinder of the balance;

[0015] A balancing piston, wherein the balancing piston is sleeved on the outside of the balancing inner cylinder and is located on the inside of the outer cylinder of the electronic compartment;

[0016] And a balance chamber, which is a cavity formed by a transition sealing ring, a balance inner cylinder, a balance piston and an electronic cabin.

[0017] As a further solution of the present invention, the hydraulic control assembly includes:

[0018] An inner tube of the oil cavity, one end of which is connected to the electronic cabin;

[0019] A hydraulic chamber outer tube, which is sleeved on the outer side of the oil chamber inner tube and connected to the abutment ring;

[0020] A hydraulic nipple, the hydraulic nipple is connected to the other end of the inner tube of the oil chamber and is located inside the outer tube of the hydraulic chamber, and a power piston shaft is slidably disposed inside the hydraulic nipple;

[0021] An oil storage chamber, wherein the oil storage chamber is a chamber body formed by an electronic cabin, an oil chamber inner tube, a hydraulic chamber outer tube and a hydraulic nipple, and two differential pressure sensors connected to the hydraulic nipple are arranged in the oil storage chamber;

[0022] A power piston shaft limiting sleeve, wherein the power piston shaft limiting sleeve is connected to an end of the hydraulic nipple away from the inner tube of the oil chamber;

[0023] An opening valve oil inlet hole and a closing valve oil inlet hole, the opening valve oil inlet hole and the closing valve oil inlet hole are arranged on the inner side wall of the hydraulic nipple and are connected to the oil storage chamber, the opening valve oil inlet hole and the closing valve oil inlet hole are respectively located at both ends of the power piston shaft, the side of the power piston shaft close to the opening valve oil inlet hole is provided with an opening valve chamber, and the side of the power piston shaft close to the closing valve oil inlet hole is provided with a closing chamber;

[0024] An oil guide group, wherein two oil guide groups are provided and are arranged at one end of the hydraulic nipple close to the pressure difference sensor, the two oil guide groups are respectively connected to the valve opening oil inlet hole and the valve closing oil inlet hole, and the oil guide group includes a motor oil pump group and a solenoid valve;

[0025] And an oil injection connecting sleeve, the oil injection connecting sleeve is connected to the end of the outer cylinder of the hydraulic chamber away from the outer cylinder of the electronic cabin, one end of the oil injection connecting sleeve is connected to the end of the power piston shaft limiting sleeve away from the inner tube of the oil chamber, and a power connecting sleeve is provided on the inner side of the oil injection connecting sleeve for clamping with the power piston shaft.

[0026] As a further solution of the present invention, the adjustment component includes:

[0027] A ball valve outer cylinder, one end of which is connected to an end of the oil injection connecting sleeve away from the hydraulic chamber outer cylinder;

[0028] An upper ball seat support sleeve, the upper ball seat support sleeve is arranged on the inner side of the outer cylinder of the ball valve, and the upper ball seat is clamped on one end of the upper ball seat support sleeve away from the outer cylinder of the hydraulic chamber;

[0029] A lower ball seat support sleeve, the lower ball seat support sleeve is arranged on the inner side of one end of the ball valve outer cylinder away from the hydraulic chamber outer cylinder, and a lower ball seat is arranged on the inner side of the lower ball seat support sleeve;

[0030] A ball valve, the ball valve being movably fitted between the upper ball seat and the lower ball seat;

[0031] A lower joint, the lower joint is connected to one end of the outer tube of the ball valve away from the outer tube of the hydraulic chamber and abuts against the lower ball seat support sleeve, and the inner wall of the lower joint is aligned with the inner wall of the lower ball seat;

[0032] A cleaning sleeve, which is arranged inside the upper ball seat support sleeve and is clamped to the upper ball seat;

[0033] A guide connecting sleeve, the guide connecting sleeve is arranged on the inner side of one end of the ball valve outer tube close to the oil injection connecting sleeve;

[0034] An active connection sleeve, which is movably arranged inside the guide connection sleeve and is clamped with the power connection sleeve, and is sleeved outside the cleaning sleeve. An end of the active connection sleeve close to the ball valve is provided with an operating arm that is slidably matched with the upper ball seat support sleeve;

[0035] A ball valve rotating shaft, the ball valve rotating shaft is rotatably connected to one end of the upper ball seat support sleeve and the lower ball seat support sleeve that are close to each other and is connected to the ball valve;

[0036] And a power key, wherein the power key is arranged on the outside of the ball valve and is movably connected to an end of the operating arm away from the movable connecting sleeve.

[0037] As a further solution of the present invention, an end of the battery compartment outer tube away from the battery compartment is connected to a lower release joint, an end of the lower release joint cooperates with the corresponding end of the battery compartment, an inner side of the end of the lower release joint away from the battery compartment is connected to a release spindle, an outer end of the release spindle is connected to a release adapter, and a spring pressure cover sleeved on the outer side of the release spindle is provided between the release adapter and the lower release joint.

[0038] As a further solution of the present invention, the number of the power keys is consistent with the number of the operating arms, and two power keys are provided and symmetrically arranged on the ball valve.

[0039] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0040] The present invention can cause the entire device to be in a pressure balanced state through the pressure balancing component, and can realize the conduction and closing of the oil circuit in the device through the cooperation of the hydraulic control component and the adjustment component, thereby realizing the electro-hydraulic control of the isolation valve, avoiding the low efficiency of manual operation of mechanical switch tools for opening and closing, and has the effects of stable balance, intelligent control, low energy consumption, flexible opening and closing, convenient operation, reliable operation, and simplicity and practicality.

[0041] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a stereoscopic diagram of the electro-hydraulic controlled isolation valve in the embodiment of the invention.

[0043] Figure 2 It is a cross-sectional view of the electro-hydraulic isolation valve in the embodiment of the invention.

[0044] Figure 3 It is a schematic diagram of the structure of the electric control component in the embodiment of the invention.

[0045] Figure 4 It is a schematic diagram of the structure of the pressure balance assembly in an embodiment of the invention.

[0046] Figure 5 It is a schematic diagram of the structure of the hydraulic control component in an embodiment of the invention.

[0047] Figure 6 It is a schematic diagram of the structure of the adjustment component in the embodiment of the invention.

[0048] Figure 7 It is a schematic diagram of the structure of the hydraulic nipple in the embodiment of the invention.

[0049] Figure 8 It is a cross-sectional view of a hydraulic nipple in an embodiment of the invention.

[0050] Fig. 9 It is a schematic diagram of the structure of the ball valve in the embodiment of the invention.

[0051] Figure numerals: 1. battery compartment outer cylinder; 2. electronic compartment outer cylinder; 3. hydraulic chamber outer cylinder; 4. ball valve outer cylinder; 5. battery; 6. battery compartment; 7. release lower joint; 8. spring pressure cover; 9. release mandrel; 10. release adapter; 11. balance inner cylinder; 12. balance piston; 13. threaded half sleeve; 14. electronic compartment; 15. abutment ring; 16. oil chamber inner tube; 17. hydraulic short joint; 18. power piston shaft; 19. valve opening chamber; 20. closing chamber; 21. differential pressure sensor Sensor; 22, power piston shaft limit sleeve; 23, oil injection connecting sleeve; 24, upper ball seat support sleeve; 25, power connecting sleeve; 26, guide connecting sleeve; 27, movable connecting sleeve; 28, cleaning sleeve; 29, upper ball seat; 30, ball valve; 31, lower ball seat; 32, lower ball seat support sleeve; 33, motor oil pump group; 34, solenoid valve; 35, open valve oil inlet hole; 36, close valve oil inlet hole; 37, ball valve rotating shaft; 38, power key; 39, operating arm; 40, lower joint. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0054] In one embodiment of the present invention, see Figure 1-Figure 2 An electro-hydraulic controlled isolation valve comprises an electric control component, a pressure balancing component, a hydraulic control component and an adjusting component. The electric control component is used for controlling the normal operation of the device, the pressure balancing component is installed on the electric control component, the hydraulic control component is installed on the electric control component, and the adjusting component is connected to the hydraulic control component.

[0055] In this embodiment, the pressure balancing component can be used to put the entire device in a pressure balanced state. The cooperation of the hydraulic control component and the adjustment component can realize the opening and closing of the oil circuit in the device, thereby realizing electro-hydraulic control of the isolation valve, avoiding the low efficiency of manual operation of mechanical switch tools for opening and closing, and having the effects of stable balance, intelligent control, low energy consumption, flexible opening and closing, convenient operation, reliable operation, and simple and practical operation.

[0056] In one embodiment of the present invention, see Figure 1-Figure 3 The electronic control component includes a battery compartment 6, the outer side of the battery compartment 6 is connected to a battery compartment outer tube 1, a plurality of batteries 5 are circumferentially distributed between the battery compartment outer tube 1 and the battery compartment 6, an electronic compartment 14 is provided at one end of the battery compartment 6, and a balancing inner tube 11 is connected between the battery compartment 6 and the electronic compartment 14.

[0057] In this embodiment, a plurality of batteries 5 can meet the power demand of the electro-hydraulic control in the device, wherein the end of the battery compartment outer tube 1 away from the battery compartment 6 is connected to a lower connector 7, and the end of the lower connector 7 cooperates with the corresponding end of the battery compartment 6, and the inner side of the end of the lower connector 7 away from the battery compartment 6 is connected to a releasing spindle 9, and the outer end of the releasing spindle 9 is connected to a releasing adapter 10, and a spring pressure cover 8 sleeved on the outside of the releasing spindle 9 is provided between the releasing adapter 10 and the lower connector 7. By connecting the lower connector 7, the spring pressure cover 8, the releasing spindle 9 and the releasing adapter 10, the stability of the device can be improved.

[0058] In one embodiment of the present invention, see Figure 1-Figure 2 and Figure 4 The pressure balance assembly includes an electronic cabin outer tube 2 sleeved on the outside of the electronic cabin 14, one end of the electronic cabin outer tube 2 is connected to one end of the battery cabin 6 through a threaded half sleeve 13, and the other end of the electronic cabin outer tube 2 is connected to an abutment ring 15 arranged on the outside of the electronic cabin 14. A transition sealing ring is connected between the electronic cabin outer tube 2 and the balance inner tube 11. A balance piston 12 located on the inside of the electronic cabin outer tube 2 is sleeved on the outside of the balance inner tube 11. The cavity formed by the transition sealing ring, the balance inner tube 11, the balance piston 12 and the electronic cabin 14 is a balance chamber.

[0059] In this embodiment, the balance chamber formed by the transition sealing ring, the balance inner cylinder 11, the balance piston 12 and the electronic cabin 14 can make the entire device in a pressure balance state. In addition, a measuring plug can be set on the electronic cabin outer cylinder 2, and the measuring plug is provided with a pressure detection device. Through the pressure detection device, the pressure data in the device can be collected and transmitted, so that the staff can understand the pressure conditions in the device.

[0060] In one embodiment of the present invention, see Figure 1-Figure 2 , Figure 5-Figure 9The hydraulic control assembly includes an oil chamber inner tube 16, one end of which is connected to the electronic cabin 14, a hydraulic chamber outer tube 3 connected to the abutment ring 15 is sleeved on the outer side of the oil chamber inner tube 16, the other end of the oil chamber inner tube 16 is connected to a hydraulic nipple 17 located inside the hydraulic chamber outer tube 3, a power piston shaft 18 is slidably arranged inside the hydraulic nipple 17, the cavity formed by the electronic cabin 14, the oil chamber inner tube 16, the hydraulic chamber outer tube 3 and the hydraulic nipple 17 is an oil storage chamber, two pressure difference sensors 21 connected to the hydraulic nipple 17 are arranged in the oil storage chamber, one end of the hydraulic nipple 17 away from the oil chamber inner tube 16 is connected to a power piston shaft limiting sleeve 22, an opening valve oil inlet hole 35 and a closing valve oil inlet hole 36 connected to the oil storage chamber are respectively arranged on the inner side wall of the hydraulic nipple 17, the opening valve oil inlet hole 35 and the closing valve oil inlet hole 36 ... The valve oil inlet hole 35 and the valve closing oil inlet hole 36 are respectively located at the two ends of the power piston shaft 18, and the power piston shaft 18 is provided with an opening valve chamber 19 on the side close to the opening valve oil inlet hole 35, and the power piston shaft 18 is provided with a closing chamber 20 on the side close to the valve closing oil inlet hole 36. The hydraulic short joint 17 is provided with two oil guide groups on the end close to the pressure difference sensor 21, and the two oil guide groups are respectively connected to the opening valve oil inlet hole 35 and the valve closing oil inlet hole 36. The oil guide group includes a motor oil pump group 33 and a solenoid valve 34. The end of the hydraulic cavity outer tube 3 away from the electronic cabin outer tube 2 is connected to an oil injection connecting sleeve 23, and one end of the oil injection connecting sleeve 23 is connected to the end of the power piston shaft limiting sleeve 22 away from the oil cavity inner tube 16, and the inner side of the oil injection connecting sleeve 23 is provided with a power connecting sleeve 25 that is clamped with the power piston shaft 18;

[0061] The regulating assembly comprises a ball valve outer cylinder 4, one end of which is connected to an end of an oil injection connecting sleeve 23 away from the hydraulic chamber outer cylinder 3, an upper ball seat support sleeve 24 is provided on the inner side of the ball valve outer cylinder 4, an upper ball seat 29 is clamped on the end of the upper ball seat support sleeve 24 away from the hydraulic chamber outer cylinder 3, a lower ball seat support sleeve 32 is provided on the inner side of the end of the ball valve outer cylinder 4 away from the hydraulic chamber outer cylinder 3, a lower ball seat 31 is provided on the inner side of the lower ball seat support sleeve 32, a ball valve 30 is movably fitted between the upper ball seat 29 and the lower ball seat 31, an end of the ball valve outer cylinder 4 away from the hydraulic chamber outer cylinder 3 is connected to a lower joint 40 abutting against the lower ball seat support sleeve 32, the inner wall of the lower joint 40 is aligned with the inner wall of the lower ball seat 31, and the upper ball seat support sleeve A cleaning sleeve 28 is provided on the inner side of 24 and is clamped with the upper ball seat 29. A guide connecting sleeve 26 is provided on the inner side of the end of the ball valve outer tube 4 close to the oil injection connecting sleeve 23. A movable connecting sleeve 27 is movably provided on the inner side of the guide connecting sleeve 26 and is clamped with the power connecting sleeve 25. The movable connecting sleeve 27 is sleeved on the outer side of the cleaning sleeve 28. An operating arm 39 is provided on the end of the movable connecting sleeve 27 close to the ball valve 30 and is slidably matched with the upper ball seat support sleeve 24. The ends of the upper ball seat support sleeve 24 and the lower ball seat support sleeve 32 that are close to each other are rotatably connected with a ball valve rotating shaft 37 connected to the ball valve 30. A power key 38 is provided on the outer side of the ball valve 30, and the power key 38 is movably connected to an end of the operating arm 39 away from the movable connecting sleeve 27.

[0062] In this embodiment, in the initial state, the pipeline is in a closed state, the opening on the ball valve 30 is in a vertical state with the pipeline, the power piston shaft 18 is away from the power piston shaft limit sleeve 22, at this time, the closed chamber 20 is full of oil, and the open valve chamber 19 is free of oil;

[0063] When the channel needs to be opened, the oil guide group corresponding to the valve opening oil inlet hole 35 works and guides the oil in the oil storage chamber into the valve opening chamber 19 through the valve opening oil inlet hole 35. The oil in the valve opening chamber 19 gradually increases and pushes the power piston shaft 18 to move to the right. The oil in the closing chamber 20 will flow back into the oil storage chamber through the valve closing oil inlet hole 36, realizing the rightward movement of the power piston shaft 18. The power piston shaft 18 pushes the movable connecting sleeve 27 to move rightward by being clamped with the power connecting sleeve 25 and the movable connecting sleeve 27 is clamped with the power connecting sleeve 25. 7 drives the operating arm 39 to move right synchronously. The operating arm 39 drives the ball valve 30 to rotate 90 degrees by being movably connected with the power key 38 and the ball valve rotating shaft 37 is rotatably connected with the upper ball seat support sleeve 24, so that the opening on the ball valve 30 is in line with the pipeline, the conduction of the flow channel in the device is realized, the intelligent control of the opening and closing of the flow channel is realized, the low efficiency of manual operation of the mechanical switch tool for opening and closing is avoided, and the practicality of the device is improved. Among them, the number of the power keys 38 is the same as that of the operating arm 39, and the power keys 38 are provided with two and are symmetrically arranged on the ball valve 30.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electro-hydraulic controlled isolation valve, characterized in that: It includes an electric control component, a pressure balance component, a hydraulic control component and an adjustment component, wherein the electric control component is used to control the normal operation of the device, the pressure balance component is installed on the electric control component, the hydraulic control component is installed on the electric control component, and the adjustment component is connected to the hydraulic control component; Wherein, the hydraulic control component includes an oil chamber inner tube, one end of which is connected to the electronic cabin; a hydraulic chamber outer tube, which is sleeved on the outside of the oil chamber inner tube and connected to abutment ring; a hydraulic nipple, which is connected to the other end of the oil chamber inner tube and is located on the inner side of the hydraulic chamber outer tube, and a power piston shaft is slidably arranged on the inner side of the hydraulic nipple; an oil storage chamber, which is a cavity formed by the electronic cabin, the oil chamber inner tube, the hydraulic chamber outer tube and the hydraulic nipple, and two pressure difference sensors connected to the hydraulic nipple are arranged in the oil storage chamber; a power piston shaft limit sleeve, which is connected to one end of the hydraulic nipple away from the oil chamber inner tube; an opening valve oil inlet hole and a closing valve oil inlet hole, which are arranged on the inner wall of the hydraulic nipple and is connected with the oil storage chamber, the opening valve oil inlet hole and the closing valve oil inlet hole are respectively located at the two ends of the power piston shaft, the side of the power piston shaft close to the opening valve oil inlet hole is provided with an opening valve chamber, and the side of the power piston shaft close to the closing valve oil inlet hole is provided with a closing chamber; an oil guide group, the oil guide group is provided with two and is arranged at one end of the hydraulic short joint close to the pressure difference sensor, the two oil guide groups are respectively connected with the opening valve oil inlet hole and the closing valve oil inlet hole, the oil guide group includes a motor oil pump group and a solenoid valve; and an oil injection connecting sleeve, the oil injection connecting sleeve is connected to the end of the hydraulic chamber outer cylinder away from the electronic cabin outer cylinder, one end of the oil injection connecting sleeve is connected to the end of the power piston shaft limit sleeve away from the oil chamber inner tube, and the inner side of the oil injection connecting sleeve is provided with a power connecting sleeve engaged with the power piston shaft; The regulating assembly comprises a ball valve outer cylinder, one end of which is connected to an end of an oil filling connecting sleeve away from an outer cylinder of a hydraulic chamber; an upper ball seat supporting sleeve, which is arranged on the inner side of the ball valve outer cylinder, and an upper ball seat is clamped on an end of the upper ball seat supporting sleeve away from an outer cylinder of the hydraulic chamber; a lower ball seat supporting sleeve, which is arranged on the inner side of an end of the ball valve outer cylinder away from an outer cylinder of the hydraulic chamber, and a lower ball seat is arranged on the inner side of the lower ball seat supporting sleeve; a ball valve, which is movably fitted between the upper ball seat and the lower ball seat; a lower joint, which is connected to an end of the ball valve outer cylinder away from the outer cylinder of the hydraulic chamber and abuts against the lower ball seat supporting sleeve, and an inner wall of the lower joint is aligned with an inner wall of the lower ball seat; a cleaning sleeve, the cleaning sleeve The cleaning shaft sleeve is arranged on the inner side of the upper ball seat support sleeve and is clamped with the upper ball seat; a guide connecting sleeve, which is arranged on the inner side of one end of the ball valve outer tube close to the oil injection connecting sleeve; a movable connecting sleeve, which is movably arranged on the inner side of the guide connecting sleeve and is clamped with the power connecting sleeve, and the movable connecting sleeve is arranged on the outer side of the cleaning shaft sleeve, and an operating arm that slides with the upper ball seat support sleeve is provided at one end of the movable connecting sleeve close to the ball valve; a ball valve rotating shaft, which is rotatably connected to one end of the upper ball seat support sleeve and the lower ball seat support sleeve that are close to each other and is connected to the ball valve; and a power key, which is arranged on the outer side of the ball valve, and the power key is movably connected to one end of the operating arm away from the movable connecting sleeve.

2. The electro-hydraulic isolation valve according to claim 1, characterized in that: The electronic control assembly comprises: A battery compartment, wherein the outer side of the battery compartment is connected to a battery compartment outer cylinder, and a plurality of batteries are circumferentially distributed between the battery compartment outer cylinder and the battery compartment; An electronics compartment, the electronics compartment being disposed at one end of the battery compartment; And a balancing inner cylinder, wherein the balancing inner cylinder is connected between the battery compartment and the electronic compartment.

3. The electro-hydraulic isolation valve according to claim 2, characterized in that: The pressure balance assembly comprises: An electronic compartment outer tube, which is sleeved on the outside of the electronic compartment, one end of which is connected to one end of the battery compartment through a threaded half sleeve, and the other end of which is connected to an abutment ring arranged on the outside of the electronic compartment; A transition sealing ring connected between the outer cylinder of the electronic compartment and the inner cylinder of the balance; A balancing piston, wherein the balancing piston is sleeved on the outside of the balancing inner cylinder and is located on the inside of the outer cylinder of the electronic compartment; And a balance chamber, which is a cavity formed by a transition sealing ring, a balance inner cylinder, a balance piston and an electronic cabin.

4. The electro-hydraulic isolation valve according to claim 2, characterized in that: An end of the battery compartment outer tube away from the battery compartment is connected to a lower release joint, an end of the lower release joint cooperates with the corresponding end of the battery compartment, an inner side of an end of the lower release joint away from the battery compartment is connected to a release spindle, an outer end of the release spindle is connected to a release adapter, and a spring pressure cover sleeved on the outer side of the release spindle is provided between the release adapter and the lower release joint.

5. The electro-hydraulic isolation valve according to claim 1, characterized in that: The number of the power keys is consistent with that of the operating arms, and two power keys are provided and symmetrically arranged on the ball valve.

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