High-temperature and high-pressure hydrogenation double-body ball valve

Abstract

The present invention relates to the technical field of ball valve technology, and particularly to a high-temperature and high-pressure hydrogenation double-connected ball valve. The high-temperature and high-pressure hydrogenation double-connected ball valve includes: a housing, a rotary handle is rotatably connected to the housing, and a sphere is fixedly connected to one end of the rotary handle located inside the housing; an open-word indicating rod and a close-word indicating rod are slidably engaged with the rotary handle; a transmission mechanism is rotatably connected to the lower side of the rotary handle, and the transmission mechanism drives the open-word indicating rod and the close-word indicating rod to move up and down. By providing the open-word indicating rod and the close-word indicating rod on the rotary handle, the present invention enables the other end of the adjusting link to rotate downward, thereby pulling down the close-word indicating rod. At this time, the open-word indicating rod is located on the upper side, which means the ball valve is open, and vice versa for closing. The open-word indicating rod and the close-word indicating rod that can be retracted are provided to avoid contact with the outside, thereby avoiding wear, and enabling the valve to always maintain the indication of the opening and closing directions during use, which is convenient for use.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, and in particular to a high-temperature and high-pressure hydrogenation double-jointed ball valve. Background Art

[0002] A ball valve is a valve in which the opening and closing member (the ball) is driven by the valve stem and rotates about its axis. It can also be used for regulating and controlling fluids. High-temperature and high-pressure ball valves are resistant to high temperatures and pressures, offering excellent sealing performance, high-temperature resistance, wear resistance, easy opening and closing, and a long service life. High-temperature and high-pressure ball valves are typically made of carbon steel, cast iron, cast steel, stainless steel, and forged steel. They primarily utilize metal sealing pairs for sealing and have a wide operating temperature range.

[0003] A double-jointed ball valve uses two ball valves in series to reduce the risk of leakage during sealing. Existing high-temperature, high-pressure hydrogenation ball valves control opening and closing by rotating the valve stem. Although most valves open and close clockwise and close counterclockwise, many people still do not understand this. To help people further understand the valve opening and closing, the valve stem handle is often printed with the rotation direction of the switch to remind people to open and close the valve in the correct direction. However, as hydrogenation ball valves are used for a long time, the markings printed with the valve opening and closing direction are prone to wear. Ball valves are generally directional. If the rotation direction is incorrect, the weak side is subjected to high pressure before the valve, which can easily cause the seal to be damaged, eventually leading to internal leakage of the valve. At the same time, if one of the ball valves in the double-jointed ball valve is rotated incorrectly, the high-temperature, high-pressure medium will be impacted by the ball in the other valve body, causing damage to the ball seal in the impacted valve body. Existing hydrogenation ball valves are not convenient for workers to indicate the correct rotation direction for opening and closing, making the ball valve inconvenient to use. Summary of the invention

[0004] Technical problems solved

[0005] In response to the above-mentioned shortcomings of the prior art, the present invention provides a high-temperature and high-pressure hydrogenation double-jointed ball valve, which can effectively solve the problem in the prior art that the hydrogenation double-jointed ball valve is not convenient for the staff to prompt the correct rotation direction for opening and closing.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a high-temperature and high-pressure hydrogenation double-jointed ball valve, comprising: a housing, a handle rotatably connected to the housing, and a ball fixedly connected to one end of the handle located inside the housing;

[0009] A "start" prompt rod and an "off" prompt rod are slidably fitted on the throttle grip;

[0010] A transmission mechanism is rotatably connected to the lower side of the throttle grip. The transmission mechanism drives the "start" prompt rod and the "off" prompt rod to move up and down, playing a role in prompting the steering function.

[0011] Further, the transmission mechanism includes a threaded rod. The outer wall of the lower end of the threaded rod is rotatably connected to the lower end of the throttle grip, and the outer wall of the upper end of the threaded rod is threadedly connected to the inner wall of the "start" prompt rod.

[0012] Further, a transmission wheel is fixedly connected to the outer wall of the lower end of the threaded rod, and an annular rack is connected to the top surface of the housing. The annular rack is in meshing transmission with the transmission wheel.

[0013] Further, an adjusting link rod is rotatably connected to the inner wall of the middle part of the throttle grip. Grooves are provided at both ends of the adjusting link rod. Guide rods are fixedly connected to the outer walls of the lower ends of the "start" prompt rod and the "off" prompt rod. The inner walls of the grooves at both ends of the adjusting link rod are slidably fitted with the outer walls of the guide rods on the "start" prompt rod and the "off" prompt rod respectively.

[0014] Further, the sphere is covered with a wear-resistant material by laser plasma spraying on the abraded surface. A piston chamber is provided inside the upper end of the sphere. A piston is slidably fitted inside the piston chamber. A transmission rod is fixedly connected to the piston. The outer wall of the transmission rod passes through the inner wall of the piston chamber and extends to the outside. A spiral groove is provided on the inner wall of the housing at the lower end of the throttle grip. The inner wall of the spiral groove is slidably fitted with the outer wall of the transmission rod. A high-pressure sealing groove is provided on the inner wall of the housing at the lower end of the throttle grip. A plurality of rubber sealing rings are fixedly connected to the inner wall of the high-pressure sealing groove.

[0015] Further, a metal sealing ring is fixedly connected to the position where the sphere is connected to the throttle grip. The outer wall of the metal sealing ring is adapted to the inner wall of the high-pressure sealing groove. A T-shaped joint is fixedly connected to the inner wall of the diversion hole in the sphere. The upper end of the T-shaped joint communicates with the inside of the piston chamber. Bellows are fixedly connected to both lower ends of the T-shaped joint. The other ends of the bellows are fixedly connected to scraping rings. The outer walls of the scraping rings are slidably fitted with the inner wall of the diversion hole in the sphere.

[0016] Further, an anti-misoperation rod passes through the bottom surface of the throttle grip. An inclined groove is provided at one end of the anti-misoperation rod located inside the throttle grip. Two positioning insertion holes are provided on the top surface of the housing. The inner wall of the positioning insertion hole is movably inserted with the outer wall of the lower end of the anti-misoperation rod.

[0017] Further, a pressure rod is slidably fitted on the inner wall of one side of the throttle grip. One end of the pressure rod is elastically connected to the throttle grip through a spring. The other end of the pressure rod is rotatably connected with a rotating guide post, and the outer wall of the rotating guide post is slidably fitted with the inner wall of the inclined groove.

[0018] Beneficial effects

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the known public technologies:

[0020] 1. By providing an opening word indicating rod and a closing word indicating rod on the throttle grip, when the throttle grip is rotated, under the action of the annular rack, the driving wheel will drive the connected threaded rod to rotate, so that the threaded rod can drive the opening word indicating rod connected by thread to move upward. At this time, the guide rod on the opening word indicating rod will slide in the groove on the adjusting connecting rod, so that the adjusting connecting rod rotates around the middle rotating connection, so that the other end of the adjusting connecting rod rotates downward, so as to pull the closing word indicating rod downward. At this time, the opening word indicating rod is located on the upper side, which means that the ball valve is opened, and vice versa, which means it is closed. The opening word indicating rod and the closing word indicating rod can be stored to avoid contact with the outside, thus avoiding wear, so that the valve can always maintain the indication of the opening and closing direction during use, effectively avoiding turning in the wrong direction, ensuring the normal flow of the medium, and reducing the damage to the valve caused by the high-pressure and high-temperature hydrogenation medium.

[0021] 2. By providing an anti-misoperation rod, after the opening and closing of the valve are adjusted, the anti-misoperation rod will be inserted into the positioning jack to fix the throttle grip, which can effectively avoid that when other moving objects contact the throttle grip during the use of the valve, the throttle grip is driven to rotate, so as to ensure the normal use of the valve and prevent it from being opened or closed due to misoperation.

[0022] 3. By providing a scraping wall ring, when the throttle grip is rotated to control the opening and closing, under the action of the spiral groove, the driving rod drives the connected piston to move and squeeze, so that the gas in the piston cavity enters the corrugated pipe, and the corrugated pipe elongates, which can drive the connected scraping wall ring to scrape the dirt attached to the inner wall of the diversion hole inside the sphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 Partial sectional view schematic of the overall structure of the present invention;

[0026] Figure 3 Partial sectional view schematic of a part of the structure of the present invention;

[0027] Figure 4 Expanded schematic of a part of the structure of the present invention;

[0028] Figure 5 Partial sectional expanded view of the housing and sphere structure of the present invention;

[0029] Figure 6 Sectional expanded view of the sphere structure of the present invention;

[0030] Figure 7 Sectional expanded view of the handlebar structure of the present invention;

[0031] The reference numerals in the figure respectively represent: 1, housing; 2, handlebar; 3, sphere; 4, open word prompt rod; 5, close word prompt rod; 6, threaded rod; 101, annular rack; 102, spiral groove; 103, positioning jack; 104, high-pressure sealing groove; 105, rubber sealing ring; 201, adjusting connecting rod; 202, anti-misoperation rod; 203, inclined groove; 204, pressing rod; 205, spring; 206, rotating guide post; 401, guide rod; 601, transmission wheel; 301, piston chamber; 302, piston; 303, transmission rod; 304, T-shaped joint; 305, bellows; 306, wall scraping ring; 307, metal sealing ring. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0033] The present invention will be further described below with reference to the embodiments.

[0034] Refer to Figure 1-7 , a high-temperature and high-pressure hydrogenation double-connected ball valve, comprising: a housing 1, characterized in that a handlebar 2 is rotatably connected to the housing 1, and a sphere 3 is fixedly connected to one end of the handlebar 2 located inside the housing 1; the housing 1 and the sphere 3 in this device are made of cast iron, so that the ball valve has the function of withstanding high temperature and high pressure.

[0035] An open prompt rod 4 and a close prompt rod 5 are slidingly provided on the turning handle 2; the moving height of the open prompt rod 4 and the close prompt rod 5 will not exceed the top surface of the turning handle 2, so that the fonts on the top surfaces of the open prompt rod 4 and the close prompt rod 5 will not be rubbed by external objects, thereby ensuring the prompt function of the open prompt rod 4 and the close prompt rod 5.

[0036] A transmission mechanism is rotatably connected to the underside of the throttle handle 2, which drives the "Open" and "Close" indicator levers 4 and 5 to move up and down, providing steering function indicators. The outer wall of the throttle handle 2 is sheathed in high-temperature-resistant rubber, which isolates the throttle handle 2 from the high temperature when the valve is used to transport high-temperature media. This effectively prevents burns when turning the throttle handle 2 without gloves, thus protecting the hands.

[0037] Specifically, the transmission mechanism includes a threaded rod 6, the outer wall of the lower end of the threaded rod 6 being rotatably connected to the lower end of the turning handle 2, and the outer wall of the upper end of the threaded rod 6 being threadably connected to the inner wall of the "open" prompt rod 4. The transmission mechanism can automatically drive the "open" prompt rod 4 and the "close" prompt rod 5 to move simultaneously when the turning handle 2 is rotated to open or close the valve, thereby indicating to the user whether the valve is currently being rotated to close or open.

[0038] In addition, a transmission wheel 601 is fixedly mounted on the outer wall of the lower end of the threaded rod 6, and an annular rack 101 is connected to the top surface of the housing 1. The annular rack 101 meshes with the transmission wheel 601 to form a transmission arrangement. The transmission wheel 601 rotates under the action of the annular rack 101, thereby driving the threaded rod 6 to rotate. There is no need to manually rotate the threaded rod 6, which is convenient and quick to use.

[0039] In addition, an adjusting link 201 is rotatably connected to the inner wall of the middle portion of the turning handle 2. Both ends of the adjusting link 201 are provided with grooves. The outer walls of the lower ends of the opening prompt rod 4 and the closing prompt rod 5 are both fixedly connected and provided with guide rods 401. The inner walls of the grooves on both ends of the adjusting link 201 are respectively slidably matched with the outer walls of the guide rods 401 on the opening prompt rod 4 and the closing prompt rod 5. The adjusting link 201 realizes the synchronous movement of the opening prompt rod 4 and the closing prompt rod 5. The opening prompt rod 4 will move downward, and then because the opening prompt rod 4 is connected to the guide rod 401, the guide rod 401 will follow the downward movement. At this time, the guide rod 401 will slide in the groove on the adjusting link 201, thereby causing the adjusting link 201 to rotate at the middle rotation connection, thereby causing the other end of the adjusting link 201 to rotate upward, thereby pushing the closing prompt rod 5 upward.

[0040] In addition, the sphere 3 is covered with a wear-resistant material by laser plasma spraying on the abraded surface, which can improve the corrosion resistance of the surface of the sphere 3 when it comes into contact with the high-temperature and high-pressure hydrogenation medium, so as to be applicable to the transportation of high-temperature and high-pressure hydrogenation medium. A piston cavity 301 is provided inside the upper end of the sphere 3, and a piston 302 is slidably fitted inside the piston cavity 301. A transmission rod 303 is fixedly connected to the piston 302. The outer wall of the transmission rod 303 passes through the inner wall of the piston cavity 301 and extends to the outside. A spiral groove 102 is provided on the inner wall of the housing 1 at the lower end of the handlebar 2. The inner wall of the spiral groove 102 is slidably fitted with the outer wall of the transmission rod 303. A high-pressure seal groove 104 is provided on the inner wall of the housing 1 at the lower end of the handlebar 2, and a plurality of rubber seal rings 105 are fixedly connected to the inner wall of the high-pressure seal groove 104. The high-pressure seal groove 104 and the rubber seal rings 105 are for achieving a better sealing effect during the transportation of high-pressure and high-temperature medium by the ball valve. The spiral groove 102 is a groove formed in a spiral structure. Under the action of the spiral groove 102, when the transmission rod 303 rotates, it can move downward, thereby squeezing the piston 302 to move inside the piston cavity 301, and then squeezing the gas inside the piston cavity 301 into the T-shaped joint 304, and then entering the corrugated pipe 305. At this time, the inside of the corrugated pipe 305 will expand under the support of the gas, thereby driving the scraping ring 306 connected to the corrugated pipe 305 to move towards both sides of the diversion hole in the sphere 3, and scraping the dirt attached to the inner wall of the diversion hole inside the sphere 3. On the contrary, when the transmission rod 303 rotates and can move upward, it will pull the piston 302 to move inside the piston cavity 301, and then suck the gas inside the corrugated pipe 305 into the piston cavity 301 through the T-shaped joint 304. At this time, the corrugated pipe 305 lacks the support of gas and will drive the connected scraping ring 306 to approach the middle of the upper diversion hole of the sphere 3 to achieve cleaning. Then it will enter the corrugated pipe 305, thereby driving the scraping ring 306 connected to the corrugated pipe 305 to move towards both sides of the diversion hole in the sphere 3. A sealing strip is connected to the outer wall of the piston 302, which can improve the sealing effect between the piston 302 and the inner wall of the piston cavity 301.

[0041] In addition, a metal sealing ring 307 is fixedly connected to the position where the sphere 3 is connected to the handle 2. The outer wall of the metal sealing ring 307 is adapted to the inner wall of the high-pressure sealing groove 104. A T-shaped joint 304 is fixedly connected to the inner wall of the diversion hole in the sphere 3. The upper end of the T-shaped joint 304 is communicated with the inside of the piston cavity 301. Bellows 305 are fixedly connected to both lower ends of the T-shaped joint 304. The other ends of the bellows 305 are fixedly connected to a scraping ring 306. The outer wall of the scraping ring 306 is slidably matched with the inner wall of the diversion hole in the sphere 3. The metal sealing ring 307 can be inserted into the sealing groove, which can effectively extend the sealing path, thereby improving the sealing effect. The cross section of the broken scraping ring 306 is triangularly structured, which enables the internal liquid or gas to flow normally when the valve is opened, reducing the resistance. When the handle 2 rotates, the transmission rod 303 inside the lower end of the handle 2 will rotate accordingly. Then, under the action of the spiral groove 102, the transmission rod 303 will move, thereby squeezing or pulling the piston 302 to move in the piston cavity 301, so as to squeeze the gas in the piston cavity 301 into the T-shaped joint 304, and then it will enter the bellows 305, thereby driving the scraping ring 306 connected to the bellows 305 to scrape the dirt attached to the inner wall of the diversion hole inside the sphere 3, realizing the automatic cleaning of the inner wall of the diversion hole on the sphere 3.

[0042] In addition, an anti-misoperation rod 202 is inserted through the bottom surface of the handle 2. An inclined groove 203 is formed at one end of the anti-misoperation rod 202 located inside the handle 2. Two positioning insertion holes 103 are formed on the top surface of the housing 1. The inner wall of the positioning insertion hole 103 is movably inserted with the outer wall of the lower end of the anti-misoperation rod 202. By providing the anti-misoperation rod 202, after adjusting the opening and closing of the valve, the anti-misoperation rod 202 will be inserted into the positioning insertion hole 103 to fix the handle 2, which can effectively prevent the handle 2 from being driven to rotate when other moving objects come into contact with the handle 2 during the use of the valve, thus ensuring the normal use of the valve and preventing it from being opened or closed due to misoperation.

[0043] On the basis of the above solution, a pressure rod 204 is slidably matched with the inner wall on one side of the handle 2. One end of the outer wall of the pressure rod 204 is elastically connected to the handle 2 through a spring 205. The other end of the pressure rod 204 is rotatably connected to a rotating guide post 206. The outer wall of the rotating guide post 206 is slidably matched with the inner wall of the inclined groove 203. The rotating guide post 206 can reduce the friction force. When holding the handle 2 by hand, the fingers will squeeze the pressure rod 204, causing the pressure rod 204 to drive the connected spring 205 to contract. Then, the rotating guide post 206 at the other end of the pressure rod 204 will slide on the inner wall of the inclined groove 203, so that the anti-misoperation rod 202 provided with the inclined groove 203 will move upward, causing the anti-misoperation rod 202 to move out of the positioning insertion hole 103, making the handle 2 unrestricted.

[0044] When the valve needs to be closed, hold the rotary handle 2 by hand. At this time, the fingers will squeeze the pressure rod 204, so that the pressure rod 204 can drive the connected spring 205 to contract. Then, the rotating guide post 206 at the other end of the pressure rod 204 will slide on the inner wall of the inclined groove 203, so that the anti-misoperation rod 202 provided with the inclined groove 203 moves upward, so that the anti-misoperation rod 202 moves out of the positioning jack 103, so that the rotary handle 2 is not restricted and can rotate;

[0045] Then rotate the rotary handle 2. At this time, the transmission wheel 601 at the lower end of the threaded rod 6 on the rotary handle 2 will perform a circumferential motion. Then, the rotating transmission wheel 601 will rotate under the action of the annular rack 101, so that the transmission wheel 601 can drive the threaded rod 6 to rotate. Since the outer wall of the opening word prompt rod 4 threadedly connected to the threaded rod 6 is slidably matched with the inner wall of the rotary handle 2, when the threaded rod 6 rotates, the opening word prompt rod 4 will move downward. Then, since the guide rod 401 is connected to the opening word prompt rod 4, the guide rod 401 will move downward accordingly. At this time, the guide rod 401 will slide in the groove on the adjusting link 201, so that the adjusting link 201 rotates around the middle rotating connection, so that the other end of the adjusting link 201 rotates upward, so as to push the closing word prompt rod 5 upward, so that the closing word prompt rod 5 moves to the upper side. When the closing word prompt rod 5 is located on the upper side and the opening word prompt rod 4 is located on the lower side, it means that the rotation direction at this time is the direction of closing the valve, which can effectively avoid the problem of incorrect opening and closing of the valve.

[0046] On the contrary, when the valve needs to be opened, rotate the rotary handle 2 in the reverse direction. Then, the transmission wheel 601 will rotate under the action of the annular rack 101, so that the transmission wheel 601 can drive the threaded rod 6 to rotate. When the threaded rod 6 rotates, the opening word prompt rod 4 will move upward. Then, since the guide rod 401 is connected to the opening word prompt rod 4, the guide rod 401 will move upward accordingly. At this time, the guide rod 401 will slide in the groove on the adjusting link 201, so that the adjusting link 201 rotates around the middle rotating connection, so that the other end of the adjusting link 201 rotates downward, so as to push the closing word prompt rod 5 downward, so that the opening word prompt rod 4 moves to the upper side. At this time, it means that the valve is in the open state. Then, after the valve is opened or closed, when the hand releases the rotary handle 2, the pressure rod 204 is not restricted, and the spring 205 will drive the pressure rod 204 to reset. At this time, under the action of the rotating guide post 206, the anti-misoperation rod 202 provided with the inclined groove 203 will move downward, so that the anti-misoperation rod 202 will be inserted into the positioning jack 103, so that the rotary handle 2 is fixed and will not rotate;

[0047] When the throttle grip 2 is rotating, the transmission rod 303 inside the lower end of the throttle grip 2 will rotate accordingly. Then, under the action of the spiral groove 102, the transmission rod 303 will move, thereby squeezing or pulling the piston 302 to move within the piston chamber 301. As a result, the gas in the piston chamber 301 is squeezed into the T-shaped joint 304 and then enters the bellows 305, driving the scraping ring 306 connected to the bellows 305 to scrape the dirt adhering to the inner wall of the diversion hole inside the sphere 3, achieving automatic cleaning of the inner wall of the diversion hole on the sphere 3.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. High-temperature and high-pressure hydrogenation double-body ball valve, comprising: A housing (1), characterized in that a rotary handle (2) is rotatably connected to the housing (1), and a sphere (3) is fixedly connected to one end of the rotary handle (2) located inside the housing (1); An opening word prompt rod (4) and a closing word prompt rod (5) are slidably fitted on the rotary handle (2); A transmission mechanism is rotatably connected to the lower side of the rotary handle (2), and the transmission mechanism drives the opening word prompt rod (4) and the closing word prompt rod (5) to move up and down to play a role in steering function prompt; The transmission mechanism includes a threaded rod (6), the outer wall of the lower end of the threaded rod (6) is rotatably connected to the lower end of the rotary handle (2), and the outer wall of the upper end of the threaded rod (6) is threadedly connected to the inner wall of the opening word prompt rod (4); A transmission wheel (601) is fixedly connected to the outer wall of the lower end of the threaded rod (6), and an annular rack (101) is connected to the top surface of the housing (1), and the annular rack (101) is meshed and transmitted with the transmission wheel (601); An adjusting connecting rod (201) is rotatably connected to the inner wall of the middle part of the rotary handle (2), slots are formed at both ends of the adjusting connecting rod (201), guide rods (401) are fixedly connected to the outer walls of the lower ends of the opening word prompt rod (4) and the closing word prompt rod (5), and the inner walls of the slots at both ends of the adjusting connecting rod (201) are slidably fitted with the outer walls of the guide rods (401) on the opening word prompt rod (4) and the closing word prompt rod (5).

2. The high-temperature and high-pressure hydrogenation double-ball valve according to claim 1, characterized in that, The sphere (3) is covered with a laser plasma sprayed wear-resistant material on the abraded surface. A piston cavity (301) is opened inside the upper end of the sphere (3), a piston (302) is slidably fitted inside the piston cavity (301), a transmission rod (303) is fixedly connected to the piston (302), the outer wall of the transmission rod (303) passes through the inner wall of the piston cavity (301) and extends to the outside, a spiral groove (102) is opened on the inner wall of the housing (1) at the lower end of the rotary handle (2), the inner wall of the spiral groove (102) is slidably fitted with the outer wall of the transmission rod (303), and a high-pressure sealing groove (104) is opened at the inner wall of the housing (1) at the lower end of the rotary handle (2), and a plurality of rubber sealing rings (105) are fixedly connected to the inner wall of the high-pressure sealing groove (104).

3. The high-temperature and high-pressure hydrogenation double-ball valve according to claim 2, wherein A metal sealing ring (307) is fixedly connected to the position where the sphere (3) is connected to the rotary handle (2), the outer wall of the metal sealing ring (307) is adapted to the inner wall of the high-pressure sealing groove (104), a T-shaped joint (304) is fixedly connected to the inner wall of the diversion hole in the sphere (3), the upper end of the T-shaped joint (304) is communicated with the inside of the piston cavity (301), bellows (305) are fixedly connected to both lower ends of the T-shaped joint (304), and a scraping ring (306) is fixedly connected to the other end of the bellows (305), and the outer wall of the scraping ring (306) is slidably fitted with the inner wall of the diversion hole in the sphere (3).

4. The high-temperature and high-pressure hydrogenation double-body ball valve according to claim 1, wherein, The bottom surface of the throttle grip (2) is provided with an anti-misoperation rod (202). One end of the anti-misoperation rod (202) located inside the throttle grip (2) is provided with an inclined groove (203). The top surface of the outer shell (1) is provided with two positioning jacks (103). The inner wall of the positioning jack (103) is movably inserted and arranged with the outer wall of the lower end of the anti-misoperation rod (202).

5. The high-temperature and high-pressure hydrogenation double-body ball valve according to claim 4, characterized in that, One side inner wall of the throttle grip (2) is slidably and cooperatively provided with a pressing rod (204). One end outer wall of the pressing rod (204) is elastically connected with the throttle grip (2) through a spring (205). The other end of the pressing rod (204) is rotatably connected with a rotating guide post (206). The outer wall of the rotating guide post (206) is slidably and cooperatively arranged with the inner wall of the inclined groove (203).

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