Search

CN-122014896-A - Manual-hydraulic linkage integrated ultrahigh-pressure flat gate valve

CN122014896ACN 122014896 ACN122014896 ACN 122014896ACN-122014896-A

Abstract

The invention relates to the technical field of valves and discloses a hand-liquid linkage integrated ultrahigh pressure flat gate valve which comprises a valve body, wherein a valve seat is fixedly arranged in the valve body, an upper valve cover and a lower valve cover are fixedly connected to two sides of the valve body, a hydraulic cylinder is connected to the upper valve cover, a hydraulic piston is slidably arranged in the hydraulic cylinder, a return pipe communicated with two side areas of the hydraulic piston is fixedly connected to the hydraulic cylinder, a through stop valve is fixedly arranged on the return pipe, an upper valve rod is fixedly connected to the hydraulic piston, a valve plate matched with the valve seat is fixedly arranged at one end of the upper valve rod, which is far away from the hydraulic piston, a bearing seat is rotatably arranged on the lower valve cover, and a ball screw nut is fixedly arranged in the bearing seat. The invention has the beneficial effects that the state of the valve can be adjusted through a hydraulic mode and a manual mode, so that the valve can be controlled at any time, and the safety redundancy of the system is greatly improved.

Inventors

  • WU QICHUN
  • WU YAO

Assignees

  • 建湖县鸿达阀门管件有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (7)

  1. 1. The utility model provides a hand liquid linkage integration ultra-high pressure flat gate valve, includes valve body (1), its characterized in that, valve body (1) internal fixation has disk seat (2), valve body (1) both sides fixedly connected with upper valve gap (4) and lower valve gap (5), be connected with hydraulic cylinder (12) on upper valve gap (4), install hydraulic piston (15) in the sliding of hydraulic cylinder (12), fixedly connected with back flow (18) that communicate hydraulic piston (15) both sides region on hydraulic cylinder (12), fixedly installed on back flow (18) through stop valve (19), be provided with on through stop valve (19) and be used for opening and closing second hand wheel (20), fixedly connected with upper valve rod (16) on hydraulic piston (15), one end fixed mounting that upper valve rod (16) kept away from hydraulic piston (15) has valve plate (3) with disk seat (2) cooperation use, install bearing frame (6) on lower valve gap (5) rotation, install ball nut (10) in bearing frame (6) internal fixation, the tip fixed mounting of bearing frame (6) has adapter (8) and ball screw (8) in adapter (8) of ball screw (7), the end part of the ball screw (7) is rotationally connected with a lower valve rod (11) which is coaxially arranged, and the lower valve rod (11) is fixedly connected with the valve plate (3).
  2. 2. The hand-liquid linkage integrated ultra-high pressure flat gate valve according to claim 1, wherein an upper hydraulic cylinder cover (13) and a lower hydraulic cylinder cover (14) are fixedly arranged at two ends of the hydraulic cylinder (12) respectively, the lower hydraulic cylinder cover (14) is fixedly connected with the upper valve cover (4), the upper hydraulic cylinder cover (13) and the lower hydraulic cylinder cover (14) are respectively provided with a first hydraulic oil duct (17) communicated with the inner area of the hydraulic cylinder (12), and the first hydraulic oil duct (17) is connected with external hydraulic equipment.
  3. 3. The hand-liquid linkage integrated ultrahigh pressure flat gate valve according to claim 2, wherein the upper cover (13) and the lower cover (14) of the liquid cylinder are respectively provided with a second hydraulic oil duct (32) communicated with the inner area of the liquid cylinder (12), and two ends of the return pipe (18) are communicated with the corresponding second hydraulic oil ducts (32).
  4. 4. The hand-liquid linkage integrated ultrahigh pressure flat gate valve according to claim 2, characterized in that a groove (22) is formed in the upper cover (13) of the liquid cylinder, a second rotating shaft (26) is rotatably installed in the groove (22), the second rotating shaft (26) penetrates through the upper cover (13) of the liquid cylinder and is coaxially arranged with a part of the first hydraulic oil duct (17), the second rotating shaft (26) is in sliding sealing connection with the liquid piston (15), a baffle (28) for sealing the first hydraulic oil duct (17) on the upper cover (13) of the liquid cylinder and the lower cover (14) of the liquid cylinder is arranged on the second rotating shaft (26), and the second rotating shaft (26) is rotationally connected with the second hand wheel (20).
  5. 5. The hand-liquid linkage integrated ultrahigh pressure flat gate valve according to claim 4, wherein the end part of the first hydraulic oil duct (17) communicated with the inner area of the hydraulic cylinder (12) is provided with a limit groove (29), the baffle plate (28) is slidably arranged in the limit groove (29) and is in threaded connection with the second rotating shaft (26), and a retainer ring (27) matched with the baffle plate (28) is fixedly arranged in the first hydraulic oil duct (17).
  6. 6. The hand-fluid linkage integrated ultra-high pressure flat gate valve according to claim 5, wherein a support plate (23) is fixedly installed in the groove (22), a first rotating shaft (24) is rotatably installed on the support plate (23), the first rotating shaft (24) is perpendicular to a second rotating shaft (26), conical gears (25) are fixedly installed at the ends of the first rotating shaft and the second rotating shaft, two groups of conical gears (25) are meshed, a gear (31) is fixedly installed at one end, far away from the second rotating shaft (26), of the first rotating shaft (24), the gear (31) is meshed with a gear ring (21) fixedly installed on the rotating shaft of the second hand wheel (20), and the width of the gear ring (21) is larger than that of the gear (31).
  7. 7. The hand-fluid linkage integrated ultra-high pressure flat gate valve according to claim 6, wherein an L-shaped cover plate (30) is fixedly arranged in the groove (22) through a fixing screw, the cover plate (30) is in contact with the support plate (23), and the fixing screw is connected with the support plate (23).

Description

Manual-hydraulic linkage integrated ultrahigh-pressure flat gate valve Technical Field The invention relates to the technical field of valves, in particular to a hand-liquid linkage integrated ultrahigh pressure flat gate valve. Background In the industrial fields of ultra-deep petroleum and natural gas drilling and production, the ultra-high pressure flat gate valve is used as core opening and closing equipment of a well control device, and the operation reliability, the operation convenience and the sealing stability of the ultra-high pressure flat gate valve directly determine the safety level and the operation efficiency of the whole operation system. The existing flat gate valve applied to the ultra-high pressure working condition has the technical defects of single driving form, complex structural redundancy, poor sealing reliability, large operation torque, insufficient emergency disposal capability and the like, and is difficult to adapt to the severe industrial operation demands. The existing ultra-high pressure flat gate valve is single in driving form and poor in emergency operation capability when in use, the pure hydraulic driving gate valve highly depends on an external hydraulic station and a power source, and once a hydraulic system failure occurs, the valve cannot execute opening and closing actions. Although the purely manual driving gate valve can be independently operated, the operating torque is extremely large under the working conditions of ultrahigh pressure and large caliber, the manual opening and closing difficulty is high, the efficiency is low, and the engineering operation requirements of automatic and quick opening and closing cannot be met. Disclosure of Invention The invention aims at overcoming the defects of the prior art and providing a device applied to a valve so as to achieve the aim of stably and rapidly opening and closing the valve. The aim of the invention can be achieved by the following technical scheme: The utility model provides a hand liquid linkage integration superhigh pressure flat gate valve, includes the valve body, fixed mounting has the disk seat in the valve body, valve body both sides fixedly connected with upper valve gap and lower valve gap, be connected with the jar that surges on the upper valve gap, the interior sliding mounting of jar has the jar that surges, fixedly connected with intercommunication surges the regional back flow in piston both sides, fixedly mounted has the through stop valve on the back flow, be provided with the second hand wheel that is used for opening and closing on the through stop valve, fixedly connected with upper valve rod on the jar that surges, upper valve rod keep away from the one end fixed mounting of surges the piston have the valve plate that uses with the disk seat cooperation, the bearing frame is installed in the rotation on the lower valve gap, and fixedly mounted has ball screw nut in the bearing frame, the tip fixed mounting of bearing frame has the first hand wheel of adapter and adapter, ball screw nut internal rotation is connected with the ball that is located the adapter, and the tip rotation of ball is connected with the coaxial lower valve rod that lays, lower valve rod and valve plate fixed connection. The hydraulic cylinder is characterized in that an upper hydraulic cylinder cover and a lower hydraulic cylinder cover are respectively and fixedly arranged at two ends of the hydraulic cylinder, the upper hydraulic cylinder cover and the lower hydraulic cylinder cover are connected through fixing screws, the lower hydraulic cylinder cover is fixedly connected with an upper valve cover, the upper hydraulic cylinder cover and the lower hydraulic cylinder cover are respectively provided with a first hydraulic oil duct communicated with the inner area of the hydraulic cylinder, and the first hydraulic oil ducts are connected with external hydraulic equipment. As a further scheme of the invention, the upper cover and the lower cover of the liquid cylinder are respectively provided with a second hydraulic oil duct communicated with the inner area of the liquid cylinder, and the two ends of the return pipe are communicated with the corresponding second hydraulic oil ducts. The liquid cylinder is characterized in that the upper cover of the liquid cylinder is provided with a groove, a second rotating shaft is rotatably arranged in the groove, the second rotating shaft penetrates through the upper cover of the liquid cylinder and is coaxially arranged with a part of the first hydraulic oil duct, the second rotating shaft is in sliding sealing connection with the liquid piston, a baffle for sealing the first hydraulic oil duct is arranged on the upper cover of the liquid cylinder and the lower cover of the liquid cylinder, and the second rotating shaft is rotationally connected with the second hand. According to the invention, a limiting groove is formed in the end part, communicated with the inner area of t