Hydraulic and manual double-acting valve for oil field

Abstract

A hydraulic manual double-acting valve for an oil field belongs to a novel valve technology that a gate valve plate is pushed by hydraulic power to control opening and closing of the valve, overcomes the defects in the prior art to a certain extent, and is structurally characterized in that a manual disc is mounted at the upper end of a convex lifting valve rod, and a hydraulic cylinder is mounted at the middle end of the convex lifting valve rod; a gate valve channel is arranged below the hydraulic cylinder; cover plate flanges are arranged among the manual disc, the hydraulic cylinder, the left hydraulic oil storage chamber and the right hydraulic oil storage chamber, and sealing rings are arranged at the top ends of the cover plate flanges for sealing; the bottom end of the cover plate flange, the hydraulic cylinder, the left hydraulic oil storage chamber and the right hydraulic oil storage chamber are fixed through cylinder body sealing ring bolts and flange screws respectively.

Description

Technical Field

[0001] The utility model relates to a novel valve technology for controlling valve opening and closing by driving a gate valve plate with hydraulic power, in particular to an oil field manual hydraulic double-acting valve. Background Art

[0002] In the natural gas and crude oil pipelines of the oil field, chemical industry, and shipbuilding industry, as well as the liquid and gas pipelines transported by other industries, pipe valves with a diameter of half a meter or even one meter are very common. Such medium and large-sized pipes and valves were very difficult to operate manually in the past. In terms of pipeline transportation, valve technology is a key link. It is particularly important to control the transportation of gas and liquids, especially large-diameter pipelines. At present, there are manual, electric, and pneumatic valves on the market. They are all single-valve controlled. For electric-controlled valves, there are risks in safe operation due to the aging of the electrical appliances themselves and the lines. For purely manually controlled valves, small valves can generally be operated, but larger valves are difficult, especially the night shift at the oil field production station, which is always manned by one person. Once a problem occurs, it is difficult to operate it with one person's strength, which directly affects the normal production of the oil field and other industries.

[0003] The application number is 2011102167091, and the application publication number is CN102297171A. The hydraulic valve, hydraulic valve group and hydraulic valve control method are to provide a hydraulic valve that can solve the problem of the coordination between the valve core and the valve body in the hydraulic valve. Due to the length of the surface and the difficulty in ensuring the accuracy, there are problems in inconvenience in processing and assembly. Summary of the Invention

[0004] The purpose of the utility model is to provide a hydraulic manual double-acting valve that can not only hydraulically drive the closing and opening of the gate, but also use a manual disk to close and open the valve gate. It makes up for the defects of the original technology to a certain extent. The purpose of the utility model is achieved in this way. It includes a convex lifting valve stem, a manual disk, an upper sealing ring, a cover flange, a cylinder sealing ring bolt, a flange screw, a hydraulic oil left oil storage chamber, a gate valve hydraulic cylinder chamber, a cylinder lifting disk, a cylinder lifting disk sealing ring, a gate valve channel, a hydraulic booster rod, and a hydraulic booster sleeve. , lifting switch valve plate, lifting switch valve, cylinder lifting disc, small cylinder, cylinder oil unloading valve, gate, gate sealing groove, hydraulic cylinder, lifting switch handle, left and right oil storage chamber partitions, hydraulic oil right oil storage chamber, switch valve connecting rod, right oil chamber connecting pipeline, left oil chamber connecting pipeline, left oil chamber control valve, right oil chamber control valve, hydraulic cylinder oil pipeline, left oil chamber channel, right oil chamber channel, the upper end of the convex lifting valve stem is installed with a manual disc, the middle end of the convex lifting valve stem is installed with a hydraulic cylinder, and the bottom of the hydraulic cylinder has a gate valve channel. A cover flange is provided between the manual disc, the hydraulic cylinder, the left hydraulic oil storage chamber, and the right hydraulic oil storage chamber, and an upper sealing ring is provided on the top of the cover flange; the bottom end of the cover flange is fixed to the hydraulic cylinder, the left hydraulic oil storage chamber, and the right hydraulic oil storage chamber by cylinder body sealing ring bolts and flange screws respectively.

[0005] The upper end of the convex lift valve stem is provided with an external thread, which is engaged with the internal thread of the manual disk. The convex lift valve stem can be adjusted by rotating the manual disk to drive the cylinder lift disk and the gate plate to rise and fall.

[0006] A gate valve hydraulic cylinder chamber is provided in the hydraulic cylinder; a cylinder lifting plate is installed on the convex lifting valve stem in the gate valve hydraulic cylinder chamber, and a lifting plate sealing ring is sealed between the gate valve hydraulic cylinder chamber and the cylinder lifting plate; a hydraulic cylinder oil pipeline is connected to the hydraulic cylinder.

[0007] A left hydraulic oil storage chamber and a right hydraulic oil storage chamber are provided on the outside of the hydraulic cylinder, and the middle of the left hydraulic oil storage chamber and the right hydraulic oil storage chamber are separated by the left and right oil storage chambers; a lifting switch valve plate is provided at the top of the hydraulic oil storage chamber, a hydraulic boosting rod is inserted in the middle of the lifting switch valve plate, and a hydraulic boosting sleeve is provided on the outside of the hydraulic boosting rod; further, a cylinder lifting plate is installed at the bottom end of the hydraulic boosting rod, and a small cylinder is provided below the cylinder lifting plate.

[0008] The outer side of the hydraulic cylinder and the upper and lower ends of the left and right hydraulic oil storage chambers are respectively provided with oil inlet and outlet ports and cylinder oil unloading valves, and the middle ends of the left and right hydraulic oil storage chambers are provided with lifting switch valves.

[0009] A gate plate is installed in the middle of the gate valve channel, and the bottom end of the gate plate is located in the gate plate sealing groove; further, the gate plate is circular and is fixed to the bottom end of the convex lifting valve stem by bolts.

[0010] The lifting switch handle and the lifting switch valve are connected by the switch valve connecting rod; the lifting switch valve and the right oil chamber control valve are connected by the left oil chamber connecting pipeline; the lifting switch and the left oil chamber control valve are connected by the right oil chamber connecting pipeline; the lifting switch valve controls the left and right oil chamber control valves respectively; the left hydraulic oil storage chamber is connected to the hydraulic cylinder by the left oil chamber channel; the right hydraulic oil storage chamber is connected to the hydraulic cylinder by the right oil chamber channel; the hydraulic cylinder is connected to the hydraulic cylinder oil pipeline.

[0011] An ascending valve position and a descending valve position are provided on the dynamic line of the lifting switch handle, and the ascending valve position and the descending valve position form an angle of 90 degrees.

[0012] When the jack is lifted up, the gate valve is opened and closed, and the oil and gas pass through the jack.

[0013] In special circumstances, when the hydraulic system is out of control, people turn the manual disk to drive the convex lifting valve stem to rise or fall, and the convex lifting valve stem drives the gate plate to rise, the gate valve channel is opened, oil and gas pass through, and it works normally; when there is a problem with the pipeline, the operator turns the manual disk 2 to drive the convex lifting valve stem, and the convex lifting valve stem drives the gate plate down to the gate plate sealing groove. The oil pipe can be sealed and repaired.

[0014] The significance of the utility model is as follows: first, the device adopts dual drive of hydraulic control and manual control, which greatly solves the time-consuming and labor-intensive problem and ensures the safe production and normal daily operation of pipelines in oil fields; second, the device can be applied to valve body technology on various high, medium and low pressure large-diameter liquid and gas pipelines; third, due to the replacement of hydraulic and manual control, the opening and closing efficiency is improved; fourth, due to the use of hydraulic technology, safety hazards are eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a structural diagram of a hydraulic manual double-acting valve. In the figure, 1 is a convex lifting valve stem, 2 is a manual disk, 3 is an upper sealing ring, 4 is a cover flange, 5 is a cylinder sealing ring bolt, 6 is a flange screw, 7 is a left hydraulic oil storage chamber, 8 is a gate valve hydraulic cylinder chamber, 9 is a cylinder lifting disk, 10 is a cylinder lifting disk sealing ring, 11 is a gate valve channel, 12 is a hydraulic booster rod, 13 is a hydraulic booster sleeve, 14 is a lifting switch valve plate, 15 is a lifting switch valve, 16 is a cylinder lifting disk, 17 is a small cylinder, 18 is a cylinder oil unloading valve, 19 is a gate plate, 20 is a gate plate sealing groove, 21 is a hydraulic cylinder, 22 is an oil inlet and outlet, 23 is a lifting switch handle.

[0016] Figure 2 This is a top view of a hydraulic manual double-acting valve, including 1, a convex lifting valve stem 4, a cover flange 7, a left hydraulic oil storage chamber 8, a gate valve hydraulic cylinder chamber 17, a small cylinder 21, a hydraulic cylinder 24, left and right hydraulic oil storage chamber partitions 25, and a right hydraulic oil storage chamber.

[0017] Figure 3 Schematic diagram of the gate, 19, gate 26, bolts in the figure.

[0018] Figure 4 It is a dynamic diagram of the lifting switch handle, in which 23, the lifting switch handle 27, the rising valve position 28, and the falling valve position.

[0019] Figure 5 This is a structural schematic diagram of the lifting switch handle and the switch valve, in which 1, the convex lifting valve stem 8, the gate valve hydraulic cylinder chamber 9, the cylinder lifting plate 21, the hydraulic cylinder 23, the lifting switch handle 29, the switch valve connecting rod 30, the right oil chamber connecting pipeline 31, the left oil chamber connecting pipeline 32, the left oil chamber control valve 33, and the right oil chamber control valve.

[0020] Figure 6 It is a dynamic schematic diagram of the lifting switch handle, including 23, the lifting switch handle 34, the hydraulic cylinder oil pipeline 35, the left oil chamber channel 36, and the right oil chamber channel. DETAILED DESCRIPTION

[0021] Example 1. The utility model includes a convex lifting valve stem 1, a manual disc 2, an upper sealing ring 3, a cover flange 4, a cylinder sealing ring bolt 5, a flange screw 6, a left hydraulic oil storage chamber 7, a gate valve hydraulic cylinder chamber 8, a cylinder lifting disc 9, a cylinder lifting disc sealing ring 10, a gate valve channel 11, a hydraulic boosting rod 12, a hydraulic boosting sleeve 13, a lifting switch valve plate 14, a lifting switch valve 15, a cylinder lifting disc 16, a small cylinder 17, a cylinder oil unloading valve 18, a gate plate 19, and a gate plate sealing groove 20. The hydraulic cylinder 21, lifting switch handle 23, left and right oil storage chamber partitions 24, right hydraulic oil storage chamber 25, switch valve connecting rod 29, right oil chamber connecting pipeline 30, left oil chamber connecting pipeline 31, left oil chamber control valve 32, right oil chamber control valve 33, hydraulic cylinder oil delivery pipeline 34, left oil chamber channel 35, and right oil chamber channel 36 are shown. A manual disc 2 is mounted on the upper end of the convex lifting valve stem 1, and a hydraulic cylinder 21 is mounted on the middle end of the convex lifting valve stem 1. A gate valve channel 11 is located below the hydraulic cylinder 21. A cover flange 4 is located between the manual disc 2, the hydraulic cylinder 21, the left hydraulic oil storage chamber 7, and the right hydraulic oil storage chamber 25. The top of the cover flange 4 is sealed with an upper sealing ring 3. The bottom end of the cover flange 4 is secured to the hydraulic cylinder 21, the left hydraulic oil storage chamber 7, and the right hydraulic oil storage chamber 25 by cylinder body sealing ring bolts 5 and flange screws 6, respectively.

[0022] Example 2: The upper end of the convex lift valve stem 1 is provided with an external thread, which is engaged with the internal thread of the manual disk 2. The convex lift valve stem 1 can be adjusted by rotating the manual disk 2, driving the cylinder lift disk 9 and the gate plate 19 to rise and fall.

[0023] Example 3: A gate valve hydraulic cylinder chamber 8 is provided in the hydraulic cylinder 21; a cylinder lifting plate 9 is installed on the convex lifting valve stem 1 in the gate valve hydraulic cylinder chamber 8, and a lifting plate sealing ring 10 is sealed between the gate valve hydraulic cylinder chamber 8 and the cylinder lifting plate 9; a hydraulic cylinder oil pipeline 34 is connected to the hydraulic cylinder 21.

[0024] Example 4: A left hydraulic oil storage chamber 7 and a right hydraulic oil storage chamber 25 are provided on the outside of the hydraulic cylinder 21, and the left hydraulic oil storage chamber 7 and the right hydraulic oil storage chamber 25 are separated by a left and right storage chamber partition 24; a lifting switch valve plate 14 is provided at the top of the hydraulic oil storage chamber, a hydraulic boosting rod 12 is inserted in the middle of the lifting switch valve plate 14, and a hydraulic boosting sleeve 13 is provided on the outside of the hydraulic boosting rod 12; further, a cylinder lifting plate 16 is installed at the bottom end of the hydraulic boosting rod 12, and a small cylinder 17 is provided below the cylinder lifting plate 16.

[0025] Example 5: The outer side of the hydraulic cylinder 21 and the upper and lower ends of the left and right hydraulic oil storage chambers are respectively provided with oil inlet and outlet ports 22 and cylinder oil unloading valves 18, and the middle ends of the left and right hydraulic oil storage chambers are provided with lifting switch valves 15.

[0026] Example 6: A gate plate 19 is installed in the middle of the gate valve channel 11, and the bottom end of the gate plate 19 is located in the gate plate sealing groove 20; further, the gate plate 19 is circular, and the gate plate 19 is fixed to the bottom end of the convex lifting valve stem 1 by bolts 26.

[0027] Example 7. The lifting switch handle 23 and the lifting switch valve 15 are connected by the switch valve connecting rod 29; the lifting switch valve 15 and the right oil chamber control valve 33 are connected by the left oil chamber connecting pipeline 31; the lifting switch valve 15 and the left oil chamber control valve 32 are connected by the right oil chamber connecting pipeline 30; the lifting switch valve 15 controls the left and right oil chamber control valves respectively; the left hydraulic oil storage chamber 7 is connected to the hydraulic cylinder 21 by the left oil chamber channel 35; the right hydraulic oil storage chamber 25 is connected to the hydraulic cylinder 21 by the right oil chamber channel 36; the hydraulic cylinder 21 is connected to the hydraulic cylinder oil delivery pipeline 34.

[0028] Example 8: An ascending valve position 27 and a descending valve position 28 are provided on the dynamic line of the lifting switch handle 23, and the ascending valve position 27 and the descending valve position 28 form an angle of 90 degrees.

[0029] Example 9, application method of the present utility model: Since a manual disk 2 and a hydraulic device are provided, under normal circumstances, the valve is closed or opened by turning on or off the lifting switch. During operation, the lifting switch handle 23 is manually operated, and the lifting switch handle 23 drives the lifting switch valve 15 through the switch valve connecting rod 29. The lifting switch valve 15 controls the left oil chamber control valve 32 through the right oil chamber connecting pipeline 30, and the lifting switch valve 15 controls the right oil chamber control valve 33 through the left oil chamber connecting pipeline 31. The left and right oil chambers are connected to the hydraulic cylinder 21 through the left and right oil chamber channels respectively; at the same time, the lifting switch handle 23 is manually operated. The lifting switch valve 15 drives the lifting switch valve 15 through the switch valve connecting rod 29. The lifting switch valve 15 controls the left oil chamber control valve 32 through the right oil chamber connecting pipeline 30, and the lifting switch valve 15 controls the right oil chamber control valve 33 through the left oil chamber connecting pipeline 31. The left and right oil chambers are connected to the hydraulic cylinder 21 through the left and right oil chamber channels respectively; at the same time, the lifting switch handle 23 is manually operated. The hydraulic boosting rod 12 is used as the hydraulic boosting rod, which drives the cylinder lifting plate 16 to rise or fall. The hydraulic boosting rod 12 is manually operated to be pressed down, and the hydraulic oil in the right oil storage chamber 25 of the hydraulic oil enters the bottom of the oil cylinder 21. The hydraulic oil pushes the cylinder lifting plate 9 to rise, and the gate valve channel 11 is opened, and the oil and gas pass normally; when there is a problem with the oil and gas pipes, the hydraulic boosting rod 12 is manually operated to rise, and the hydraulic oil in the oil cylinder 21 enters the left oil storage chamber 7 of the hydraulic oil. At this time, the cylinder lifting plate 9 in the oil cylinder 21 descends and drives the gate plate 19 to descend into the gate plate sealing groove 20. The oil pipe can be sealed and repaired.

[0030] In special circumstances, when the hydraulic system is out of control, people turn the manual disc 2 to drive the convex lifting valve stem 1 to rise or fall, and the convex lifting valve stem 1 drives the gate plate 19 to rise, the gate valve channel 12 is opened, and oil and gas pass through, and it works normally; when a problem occurs in the pipeline, the operator turns the manual disc 2 to drive the convex lifting valve stem 1, and the convex lifting valve stem 1 drives the gate plate 19 to descend into the gate plate sealing groove 20, and the oil pipe is sealed and repaired.

Claims

1. An oilfield hydraulic manual double-acting valve, comprising a convex lift valve stem (1), a manual disc (2), an upper sealing ring (3), a cover flange (4), a cylinder sealing ring bolt (5), a flange screw (6), a left hydraulic oil storage chamber (7), a gate valve hydraulic cylinder chamber (8), a cylinder lift disc (9), a cylinder lift disc sealing ring (10), a gate valve passage (11), a hydraulic boosting rod (12), a hydraulic boosting sleeve (13), a lift switch valve plate (14), a lift switch valve (15), and a cylinder lift disc (16). , a small cylinder (17), a cylinder oil unloading valve (18), a gate (19), a gate sealing groove (20), a hydraulic cylinder (21), a lifting switch handle (23), left and right oil storage chamber partitions (24), a right hydraulic oil storage chamber (25), a switch valve connecting rod (29), a right oil chamber connecting pipeline (30), a left oil chamber connecting pipeline (31), a left oil chamber control valve (32), a right oil chamber control valve (33), a hydraulic cylinder oil delivery pipeline (34), a left oil chamber channel (35), and a right oil chamber channel (36), wherein: A manual disc (2) is installed at the upper end of the convex lift valve stem (1), and a hydraulic cylinder (21) is installed at the middle end of the convex lift valve stem (1), and a gate valve channel (11) is provided below the hydraulic cylinder (21); a cover plate flange (4) is provided between the manual disc (2) and the hydraulic cylinder (21), the left hydraulic oil storage chamber (7), and the right hydraulic oil storage chamber (25), and an upper sealing ring (3) is provided on the top of the cover plate flange (4) for sealing; the bottom end of the cover plate flange (4) and the hydraulic cylinder (21), the left hydraulic oil storage chamber (7), and the right hydraulic oil storage chamber (25) are fixed by cylinder body sealing ring bolts (5) and flange screws (6), respectively.

2. The oilfield hydraulic manual double-acting valve according to claim 1, characterized in that: The upper end of the convex lift valve stem (1) is provided with an external thread, which is engaged with the internal thread of the manual disk (2). The manual disk (2) is rotated to adjust the convex lift valve stem (1), thereby driving the cylinder lift disk (9) and the gate plate (19) to rise and fall.

3. The oilfield hydraulic manual double-acting valve according to claim 1, characterized in that: A gate valve hydraulic cylinder chamber (8) is provided in the hydraulic cylinder (21); a cylinder lifting disc (9) is installed on the convex lifting valve stem (1) in the gate valve hydraulic cylinder chamber (8); a lifting disc sealing ring (10) is provided between the gate valve hydraulic cylinder chamber (8) and the cylinder lifting disc (9); and a hydraulic cylinder oil pipeline (34) is connected to the hydraulic cylinder (21).

4. The oilfield hydraulic manual double-acting valve according to claim 1, characterized in that: A left hydraulic oil storage chamber (7) and a right hydraulic oil storage chamber (25) are provided on the outside of the hydraulic cylinder (21), and the middle of the left hydraulic oil storage chamber (7) and the right hydraulic oil storage chamber (25) are separated by a left and right storage chamber partition (24); a lifting switch valve plate (14) is provided at the top of the hydraulic oil storage chamber, a hydraulic boosting rod (12) is inserted in the middle of the lifting switch valve plate (14), and a hydraulic boosting sleeve (13) is provided on the outside of the hydraulic boosting rod (12); further, a cylinder lifting plate (16) is installed at the bottom end of the hydraulic boosting rod (12), and a small cylinder (17) is provided below the cylinder lifting plate (16).

5. The oilfield hydraulic manual double-acting valve according to claim 1, characterized in that: The outer side of the hydraulic cylinder (21) and the upper and lower ends of the left and right hydraulic oil storage chambers are respectively provided with oil inlet and outlet ports (22) and a cylinder oil unloading valve (18), and the middle ends of the left and right hydraulic oil storage chambers are provided with a lifting switch valve (15).

6. The oilfield hydraulic manual double-acting valve according to claim 1, characterized in that: A gate plate (19) is installed in the middle of the gate valve channel (11), and the bottom end of the gate plate (19) is located in the gate plate sealing groove (20); further, the gate plate (19) is circular and is fixed to the bottom end of the convex lifting valve stem (1) by bolts (26).

7. The oilfield hydraulic manual double-acting valve according to claim 1, characterized in that: The lifting switch handle (23) and the lifting switch valve (15) are connected by a switch valve connecting rod (29); the lifting switch valve (15) and the right oil chamber control valve (33) are connected by a left oil chamber connecting pipeline (31), and the lifting switch valve (15) and the left oil chamber control valve (32) are connected by a right oil chamber connecting pipeline (30); the lifting switch valve (15) controls the left and right oil chamber control valves respectively; the left hydraulic oil storage chamber (7) is connected to the hydraulic cylinder (21) by a left oil chamber passage (35); the right hydraulic oil storage chamber (25) is connected to the hydraulic cylinder (21) by a right oil chamber passage (36); and the hydraulic cylinder (21) is connected to a hydraulic cylinder oil delivery pipeline (34).

8. The oilfield hydraulic manual double-acting valve according to claim 1, characterized in that: An ascending valve position (27) and a descending valve position (28) are provided on the dynamic line of the lifting switch handle (23), wherein the ascending valve position (27) and the descending valve position (28) are at an angle of 90 degrees.

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