CN110822116A

CN110822116A - High-temperature high-pressure stop valve

Info

Publication number: CN110822116A
Application number: CN201911133895.5A
Authority: CN
Inventors: 张晓剑; 张强升; 曲萍; 李逸龙; 马文军; 缪静; 戴永飞
Original assignee: Jiangsu Xinghe Valve Co Ltd
Current assignee: Jiangsu Xinghe Valve Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-02-21

Abstract

The invention discloses a high-temperature and high-pressure stop valve, which comprises a valve body, a side jacking pipe and a main jacking pipe, wherein the side jacking pipe is arranged on the valve body; the pressure relief valve is characterized in that a bending through groove is formed in the valve body, a main stop groove penetrates through the bending through groove, a side stop groove penetrates through the bending through groove, the side stop groove is located on the left side of the bending through groove, a pressure relief groove penetrates through the bending through groove, and the pressure relief groove is located on the right side of the main stop groove. This high temperature high pressure stop valve at first can end the fluid, and sets up multilayer stop mechanism, prevents that the stop valve from opening by mistake, still can carry out the pressure release to the inside fluid of valve body, avoids the highly compressed fluid inflation of high temperature and damages the valve body, when opening and closing the stop valve, can reduce fluidic impact force and reduce ascending unbalance force, makes things convenient for the switch stop valve, and multiplicable leakproofness.

Description

High-temperature high-pressure stop valve

Technical Field

The invention relates to the technical field of stop valves, in particular to a high-temperature and high-pressure stop valve.

Background

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, or powder) in a pipe or equipment by flowing or stopping the medium. The valve can be controlled by adopting various transmission modes, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic hydraulic, electrohydraulic, pneumatic hydraulic, spur gear and bevel gear drive, etc., but when the general valve is worked in the high-temperature and high-pressure environment, the pressure applied to valve rod is very large, so that the problem of separation of valve rod and valve core can often occur, and the valve performance is affected, at present, the medium channel of the stop valve is usually non-equilibrium structure, when it is opened, its medium stream can be flowed in from low end of sealing surface, and after it is passed through sealing surface, it can be flowed out from high end, so that when it is closed, the upper and lower two ends of valve flap can bear very large pressure difference, so that it can produce very large upward unbalanced force, and can make valve difficult to close, even can not seal, and because the high-temperature and high-pressure fluid is passed through the interior of valve body, when it is stopped, can damage the valve body, influence stop valve life, and general stop valve does not have many times blockade mechanism, and when the open by mistake stop valve, the fluid can direct circulation, does not prevent open by mistake mechanism, and the design that application number is 201120097721.0 and provides sees, and lower extreme operating pressure difference on the valve clack can effectively be eliminated in this design, increases the leakproofness, but through closing the valve port from top to bottom, still need overcome the ascending impact force of fluid like this, is unfavorable for closing the valve.

Disclosure of Invention

The invention aims to overcome the technical problem of the prior art, and provides a high-temperature and high-pressure stop valve, which can firstly stop fluid, is provided with a multilayer stop mechanism to prevent the stop valve from being opened mistakenly, can also relieve the pressure of the fluid in a valve body to prevent the high-temperature and high-pressure fluid from expanding to damage the valve body, can reduce the impact force of the fluid and the upward unbalanced force when opening and closing the stop valve, is convenient to open and close the stop valve, can improve the sealing property, and can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a high-temperature high-pressure stop valve comprises a valve body, a side top pipe and a main top pipe;

a valve body: the valve comprises a valve body, a main stop groove, a side stop groove, a pressure relief groove, an outflow fixing pipe, an inflow fixing pipe and a bending through groove, wherein the valve body is internally provided with the bending through groove, the main stop groove penetrates through the bending through groove, the side stop groove is positioned at the left of the bending through groove, the pressure relief groove penetrates through the bending through groove, the pressure relief groove is positioned at the right of the main stop groove, the lower end of the valve body is fixedly connected to the upper side of a bottom plate, the left side of the valve body is fixedly connected with the outflow fixing pipe, the outflow fixing pipe is positioned at the left of an upper opening of the bending through groove, the left side of the valve body is fixedly connected with the inflow fixing pipe, and the inflow fixing pipe is positioned at the left of;

main pipe jacking: the main jacking pipe is movably inserted into the main stopping groove up and down, the upper end of the interior of the main jacking pipe is in threaded connection with the lower end of a second screw, the second screw is rotatably connected to the upper side of the valve body, the upper end of the second screw is fixedly connected with a main rotating gear, the main rotating gear is positioned above the valve body, the upper end of the second screw is fixedly connected with a turntable, the turntable is positioned above the main rotating gear, the lower end of the main jacking pipe is fixedly connected to the upper end of a main conveying rod, the lower end of the main conveying rod penetrates through the inflow control block and the outflow control block, the inflow control block is positioned below the outflow control block, the main jacking pipe drives the main conveying rod to move up and down by rotating the turntable, and the inflow control block and the outflow control block enter and exit the bent through groove, so that the fluid is stopped;

side pipe jacking: the side jacking pipe is movably connected in the stop groove for the side, the upper end of the inside of the side jacking pipe is in threaded connection with the lower end of a third screw, the third screw is rotatably connected to the upper side of the valve body, a side rotating gear is fixedly connected to the upper end of the third screw and is meshed with the teeth of a main rotating gear, the lower end of the side jacking pipe is fixedly connected to the upper end of the auxiliary conveying rod, the auxiliary conveying rod penetrates through the outflow side block and the inflow side block, the outflow side block is located above the inflow side block, the main rotating gear drives the side rotating gear to rotate, the side jacking pipe drives the auxiliary conveying rod to move up and down, the outflow side block and the inflow side block are controlled to enter and exit the bent through groove, and accordingly fluid impact force is weakened.

Furthermore, the number of teeth of the side rotating gear is smaller than that of the main rotating gear, the auxiliary transmission rod can be lowered preferentially than the main transmission rod through the difference of the number of teeth, and the impact force of the fluid can be weakened preferentially.

Furthermore, the diameter of the outflow side block is smaller than that of the outflow control block, the diameter of the inflow side block is smaller than that of the inflow control block, fluid impact force is weakened through the outflow side block and the inflow side block, the stop valve is convenient to control, and fluid is stopped through the outflow control block and the inflow control block.

Further, still including seal cover, pressure release solenoid, first screw rod and handle, the activity about the pressure release solenoid alternates at the pressure release with the inslot, the lower extreme fixedly connected with seal cover of pressure release solenoid, the inside upper end threaded connection of pressure release solenoid is at the lower extreme of first screw rod, the upper end fixedly connected with handle of first screw rod, the handle is located the top of valve body, through reciprocating the seal cover, comes to carry out the pressure release to the fluid of the logical inslot portion of buckling, reduces the harm to the stop valve when the fluid expands.

Further, still including the protective housing, protective housing fixed connection is in the upside of valve body, main commentaries on classics gear and the gear that turns to in the protective housing, through the protective housing protection main commentaries on classics gear and the gear that turns to in the side.

Further, still including cutting the board, fixed frame and the wane of using of changeing, the activity alternates on the right side of valve body about cutting the board, fixed left side fixed connection who changes the frame is on the right side of valve body, the middle part of wane rotates through the pivot and connects the right-hand member at fixed frame of using of changeing, the lower extreme of wane is located the right-hand of cutting the board, further ends the fluid through cutting the board, and prevents that the stop valve from being opened by mistake.

Further, still including the roof, the left end of roof passes through the hinge and articulates the right side at the valve body, the right-hand member of roof is contradicted in the left side upper end of wane, can avoid the wane gyration through the roof.

Further, still including the gyro wheel, the gyro wheel rotates through the pivot to be connected inside the right-hand member of cut-off board, reduces the frictional force of cut-off board and wane through the gyro wheel, and then reduces the thrust to the wane.

Compared with the prior art, the invention has the beneficial effects that: this high temperature high pressure stop valve has following benefit:

1. the main push pipe drives the main conveying rod to move up and down by rotating the rotary table, so that the inflow control block and the outflow control block enter and exit the bent through groove, the fluid is stopped, the main rotating gear drives the side rotating gear to rotate, the side push pipe drives the auxiliary conveying rod to move up and down, and the outflow side block and the inflow side block are controlled to enter and exit the bent through groove, so that the impact force of the fluid is weakened.

2. Can will assist the conveying pole to descend than main conveying pole priority through the number of teeth difference, can preferentially weaken the fluid impact force, weaken the fluid impact force through side piece and the side piece that flows of effluenting, conveniently control the stop valve, come to stop the fluid through the control block that flows of effluenting and the control block that flows of inflowing, through reciprocating the seal cover, come to buckle to lead to the fluid of inslot portion and carry out the pressure release, to the harm of stop valve when reducing the fluid inflation.

3. The protective shell protects the main rotating gear and the side rotating gear, the fluid is further stopped through the stopping plate, the stop valve is prevented from being opened mistakenly, the rocker can be prevented from rotating through the top plate, the friction force between the stopping plate and the rocker is reduced through the roller, and the thrust to the rocker is further reduced.

4. This high temperature high pressure stop valve at first can end the fluid, and sets up multilayer stop mechanism, prevents that the stop valve from opening by mistake, still can carry out the pressure release to the inside fluid of valve body, avoids the highly compressed fluid inflation of high temperature and damages the valve body, when opening and closing the stop valve, can reduce fluidic impact force and reduce ascending unbalance force, makes things convenient for the switch stop valve, and multiplicable leakproofness.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the structure of the invention A-A;

FIG. 4 is a schematic cross-sectional view of the present invention B-B.

In the figure: the device comprises a roller 1, a stop plate 2, a fixed rotating frame 3, a sealing sleeve 4, a seesaw 5, a pressure relief screw tube 6, a top plate 7, a first screw rod 8, a handle 9, a rotating disc 10, a second screw rod 11, a main rotating gear 12, a side rotating gear 13, a protective shell 14, a third screw rod 15, a main top tube 16, a valve body 17, a side top tube 18, an auxiliary conveying rod 19, an outflow side block 20, an outflow fixed tube 21, an inflow fixed tube 22, an inflow side block 23, a bottom plate 24, an inflow control block 25, a main conveying rod 26 and an outflow control block 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-temperature high-pressure stop valve comprises a valve body 17, a side jacking pipe 18 and a main jacking pipe 16;

valve body 17: the inside of the valve body 17 is provided with a bending through groove, the inside of the valve body 17 is provided with a main stop groove, the main stop groove penetrates through the bending through groove, the inside of the valve body 17 is provided with a side stop groove, the side stop groove penetrates through the bending through groove, the side stop groove is positioned at the left of the bending through groove, the inside of the valve body 17 is provided with a pressure relief groove, the pressure relief groove penetrates through the bending through groove, the pressure relief groove is positioned at the right of the main stop groove, the lower end of the valve body 17 is fixedly connected at the upper side of the bottom plate 24, the left side of the valve body 17 is fixedly connected with an outflow fixing pipe 21, the outflow fixing pipe 21 is positioned at the left of the upper opening of the bending through groove, the left side of the valve body 17 is fixedly connected with an inflow fixing pipe 22, the inflow fixing pipe 22 is positioned at the left of the lower opening of the bending through groove, the pressure relief fixing pipe comprises a sealing sleeve 4, the lower end of a pressure relief solenoid 6 is fixedly connected with a sealing sleeve 4, the upper end inside the pressure relief solenoid 6 is in threaded connection with the lower end of a first screw rod 8, the upper end of the first screw rod 8 is fixedly connected with a handle 9, the handle 9 is positioned above a valve body 17, the fluid inside a bent through groove is relieved by moving the sealing sleeve 4 up and down, the damage to a stop valve during the expansion of the fluid is reduced, the pressure relief valve further comprises a protective shell 14, the protective shell 14 is fixedly connected with the upper side of the valve body 17, a main rotating gear 12 and a side rotating gear 13 are positioned in the protective shell 14, the main rotating gear 12 and the side rotating gear 13 are protected by the protective shell 14, the pressure relief valve further comprises a stop plate 2, a fixed rotating frame 3 and a rocker 5, the stop plate 2 is movably inserted on the right side of the valve body 17 in a left-right mode, the left side of the fixed rotating frame 3 is fixedly connected with the right, the lower end of the wane 5 is positioned at the right side of the cut-off plate 2, fluid is further cut off through the cut-off plate 2, the cut-off valve is prevented from being opened mistakenly, the wane further comprises a top plate 7, the left end of the top plate 7 is hinged to the right side of the valve body 17 through a hinge, the right end of the top plate 7 is abutted to the upper end of the left side of the wane 5, the wane 5 can be prevented from rotating through the top plate 7, the wane further comprises a roller 1, the roller 1 is rotatably connected inside the right end of the cut-off plate 2 through a rotating shaft, the friction force between the cut-off plate 2 and the wane 5 is reduced through the roller;

main jacking pipe 16: the main top pipe 16 is movably inserted into the main cut-off groove up and down, the upper end of the inside of the main top pipe 16 is in threaded connection with the lower end of the second screw rod 11, the second screw rod 11 is rotatably connected to the upper side of the valve body 17, the upper end of the second screw rod 11 is fixedly connected with the main rotating gear 12, the main rotating gear 12 is located above the valve body 17, the upper end of the second screw rod 11 is fixedly connected with the turntable 10, the turntable 10 is located above the main rotating gear 12, the lower end of the main top pipe 16 is fixedly connected to the upper end of the main conveying rod 26, the lower end of the main conveying rod 26 passes through the inflow control block 25 and the outflow control block 27, the inflow control block 25 is located below the outflow control block 27, the main top pipe 16 drives the main conveying rod 26 to move up and down by rotating the turntable 10, and the inflow control block 25 and the outflow control block 27 enter and exit the bent through;

side jacking pipe 18: the side jacking pipe 18 is movably connected in the stop groove for the side, the upper end of the inside of the side jacking pipe 18 is in threaded connection with the lower end of a third screw 15, the third screw 15 is rotatably connected on the upper side of the valve body 17, the upper end of the third screw 15 is fixedly connected with a side rotating gear 13, the side rotating gear 13 is in tooth meshing with a main rotating gear 12, the lower end of the side jacking pipe 18 is fixedly connected with the upper end of an auxiliary conveying rod 19, the auxiliary conveying rod 19 passes through an outflow side block 20 and an inflow side block 23, the outflow side block 20 is positioned above the inflow side block 23, the main rotating gear 12 drives the side rotating gear 13 to rotate, the side jacking pipe 18 drives the auxiliary conveying rod 19 to move up and down, the outflow side block 20 and the inflow side block 23 are controlled to enter and exit the bent through groove, so as to weaken the impact force of fluid, the number of teeth of the side rotating gear 13 is less than that of the main rotating gear 12, the auxiliary conveying rod 19 can preferentially descend than the main conveying rod 26, the fluid impact force can be preferentially weakened, the diameter of the outflow side block 20 is smaller than that of the outflow control block 27, the diameter of the inflow side block 23 is smaller than that of the inflow control block 25, the fluid impact force is weakened through the outflow side block 20 and the inflow side block 23, the stop valve is convenient to control, and the fluid is stopped through the outflow control block 27 and the inflow control block 25.

When in use: rotating the rotary table 10, the rotary table 10 driving the second screw 11 to rotate, the second screw 11 driving the main top pipe 16 to move downwards, the main top pipe 16 driving the main transmission rod 26 to move downwards, the main transmission rod 26 driving the inflow control block 25 and the outflow control block 27 to move downwards, the inflow control block 25 and the outflow control block 27 moving out of the bending through groove, at the same time, the second screw 11 driving the main transmission gear 12 to rotate, the main transmission gear 12 driving the side transmission gear 13 to rotate through inter-tooth meshing, the side transmission gear 13 driving the third screw 15 to rotate, the third screw 15 driving the side top pipe 18 to move downwards, the side top pipe 18 driving the auxiliary transmission rod 19 to move downwards, the auxiliary transmission rod 19 driving the outflow side block 20 and the inflow side block 23 to move downwards, the outflow side block 20 and the inflow side block 23 moving out of the bending through groove, because the number of teeth of the side transmission gear 13 is smaller than that of the main transmission gear 12, the outflow side block 20 and the inflow side block 23 preferentially move downwards than the inflow control block 25 and the outflow control, the stop valve is easy to open, when the rotary disc 10 rotates reversely, the outflow side block 20 and the inflow side block 23 preferentially move upwards than the inflow control block 25 and the outflow control block 27, the inflow side block 23 preferentially divides fluid, then the inflow control block 25 and the outflow control block 27 stop the fluid, the rotary disc 10 is convenient to rotate, after the fluid is stopped, because the fluid on the right side of the main transmission rod 26 is high-temperature and high-pressure fluid, the fluid on the right side of the main transmission rod 26 can damage the inside of the valve body, at the moment, the handle 9 is rotated, the handle 9 drives the first screw 8 to rotate, the first screw 8 drives the pressure relief screw 6 to move upwards, the pressure relief screw 6 drives the sealing sleeve 4 to move upwards, at the moment, the pressure on the right side of the main transmission rod 26 is reduced, the stop valve is protected, the upper end of the top plate 7 is rotated clockwise, the roller 1 is pressed by the top plate 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high temperature high pressure stop valve which characterized in that: comprises a valve body (17), a side jacking pipe (18) and a main jacking pipe (16);

valve body (17): a bending through groove is arranged inside the valve body (17), a main stop groove is arranged inside the valve body (17), the main stop slot passes through the bent through slot, a side stop slot is arranged inside the valve body (17), a side stop slot penetrates through the bending through slot, the side stop slot is positioned at the left side of the bending through slot, a pressure relief slot is arranged inside the valve body (17), the pressure relief groove penetrates through the bent through groove, the pressure relief groove is positioned on the right side of the main stop groove, the lower end of the valve body (17) is fixedly connected to the upper side of the bottom plate (24), the left side of the valve body (17) is fixedly connected with an outflow fixing pipe (21), the outflow fixed pipe (21) is positioned on the left of the upper opening of the bent through groove, the left side of the valve body (17) is fixedly connected with the inflow fixed pipe (22), and the inflow fixed pipe (22) is positioned on the left of the lower opening of the bent through groove;

main ceiling pipe (16): the main top pipe (16) is movably inserted into the main stop slot up and down, the upper end of the inside of the main top pipe (16) is in threaded connection with the lower end of a second screw rod (11), the second screw rod (11) is rotatably connected to the upper side of a valve body (17), the upper end of the second screw rod (11) is fixedly connected with a main transfer gear (12), the main transfer gear (12) is located above the valve body (17), the upper end of the second screw rod (11) is fixedly connected with a turntable (10), the turntable (10) is located above the main transfer gear (12), the lower end of the main top pipe (16) is fixedly connected to the upper end of a main conveying rod (26), the lower end of the main conveying rod (26) penetrates through an inflow control block (25) and an outflow control block (27), and the inflow control block (25) is located below the outflow control block (27);

side jacking pipe (18): side push pipe (18) swing joint is in the side is with ending the inslot, the inside upper end threaded connection of side push pipe (18) is at the lower extreme of third screw rod (15), third screw rod (15) rotate the upside of connecting at valve body (17), the upper end fixedly connected with side of third screw rod (15) changes gear (13), side change gear (13) and main gear (12) tooth space meshing that changes, the lower extreme fixed connection of side push pipe (18) is in the upper end of assisting transfer bar (19), help passing of transfer bar (19) to flow out side piece (20) and inflow side piece (23), it is located the top of inflow side piece (23) to flow out side piece (20).

2. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: the number of teeth of the side rotating gear (13) is less than that of the main rotating gear (12).

3. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: the diameter of the outflow side block (20) is smaller than that of the outflow control block (27), and the diameter of the inflow side block (23) is smaller than that of the inflow control block (25).

4. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: still including seal cover (4), pressure release solenoid (6), first screw rod (8) and handle (9), activity about pressure release solenoid (6) alternates at the pressure release with the inslot, the lower extreme fixedly connected with seal cover (4) of pressure release solenoid (6), the inside upper end threaded connection of pressure release solenoid (6) is at the lower extreme of first screw rod (8), the upper end fixedly connected with handle (9) of first screw rod (8), handle (9) are located the top of valve body (17).

5. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: still including protective housing (14), protective housing (14) fixed connection is in the upside of valve body (17), main change gear (12) and side change gear (13) are located protective housing (14).

6. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: still including cut-off board (2), fixed for the commentaries on classics frame (3) and wane (5), the activity alternates on the right side of valve body (17) about cut-off board (2), the left side fixed connection of fixed for the commentaries on classics frame (3) is on the right side of valve body (17), the right-hand member at fixed for the commentaries on classics frame (3) is rotated through the pivot in the middle part of wane (5), the lower extreme of wane (5) is located the right-hand side of cut-off board (2).

7. A high temperature and high pressure shut-off valve as defined in claim 6, wherein: still including roof (7), the left end of roof (7) articulates the right side at valve body (17) through the hinge, the right-hand member of roof (7) is contradicted in the left side upper end of wane (5).

8. A high temperature and high pressure shut-off valve as defined in claim 1, wherein: the cutting device is characterized by further comprising a roller (1), wherein the roller (1) is rotatably connected to the inside of the right end of the cutting plate (2) through a rotating shaft.