CN114738546B - Top-mounted ultra-low temperature ball valve - Google Patents
Top-mounted ultra-low temperature ball valve Download PDFInfo
- Publication number
- CN114738546B CN114738546B CN202210348539.0A CN202210348539A CN114738546B CN 114738546 B CN114738546 B CN 114738546B CN 202210348539 A CN202210348539 A CN 202210348539A CN 114738546 B CN114738546 B CN 114738546B
- Authority
- CN
- China
- Prior art keywords
- wall
- valve body
- ball valve
- low temperature
- temperature ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a top-mounted ultralow-temperature ball valve which comprises a valve body, wherein the outer walls of the two sides of the valve body are respectively provided with an air inlet and an air outlet, the outer wall of the top of the valve body is connected with a connecting seat through bolts, the connecting seat is made of a hollow material, the inner wall of the top of the connecting seat is provided with a fixed opening, the inner wall of the fixed opening is rotationally connected with a rotating rod, the outer wall of the top of the rotating rod is connected with a rotating wheel through bolts, one side of the outer wall of the top of the rotating wheel is provided with an indication groove, the outer wall of the bottom of the rotating rod is provided with a sealing mechanism, the outer wall of the bottom of the sealing mechanism is provided with a sphere, and a guide hole is formed between the outer walls of the two sides of the sphere. The invention can prevent natural gas leakage caused by poor sealing property of the ultra-low temperature ball valve, thereby increasing the risk coefficient of the ultra-low temperature ball valve and preventing natural gas leakage from the inside of the ball valve caused by residual part of natural gas in the ball valve due to the closing of the ball valve.
Description
Technical Field
The invention relates to the field of ball valves, in particular to a top-mounted ultra-low temperature ball valve.
Background
The low-temperature ball valve is a valve mainly applicable to chemical devices such as ethylene, liquefied natural gas and the like, LNG is short for liquefied natural gas, and the main component is methane; LNG is a clean and efficient energy source; the imported LNG is beneficial to realizing energy supply diversification and guaranteeing energy safety in energy consumption countries, and the exported LNG is beneficial to effectively developing natural gas resources, increasing foreign exchange income and promoting national economic development in natural gas production countries, so that LNG trade is becoming a new hot spot of the global energy market; LNG is cooled to-162 ℃ by gaseous natural gas under normal pressure, so that the gaseous natural gas is condensed into liquid, and an ultralow-temperature ball valve is needed in the natural gas liquefaction process.
When the existing ultra-low temperature ball valve is used for conveying natural gas, the natural gas is likely to leak due to poor sealing performance, so that the danger coefficient of the ultra-low temperature ball valve is increased, and the natural gas is further conveyed, and therefore the upper-mounted ultra-low temperature ball valve is needed to solve the problem.
Disclosure of Invention
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an upper-mounting formula ultralow temperature ball valve, includes the valve body, air inlet and gas vent have been seted up respectively to the both sides outer wall of valve body, there is the connecting seat top outer wall of valve body through bolted connection, and the connecting seat is hollow material, fixed mouthful has been seted up to the top inner wall of connecting seat, and the inner wall rotation of fixed mouthful is connected with the bull stick, the top outer wall of bull stick has the runner through bolted connection, and one side of runner top outer wall has seted up the instruction groove, the bottom outer wall of bull stick is provided with sealing mechanism, and sealing mechanism's bottom outer wall is provided with the spheroid, the guide hole has been seted up between the both sides outer wall of spheroid, sealing mechanism includes sealing pad, air cushion, clamp plate and fixed axle, and through bolted connection between both ends of fixed axle and bull stick and the spheroid respectively, sealing pad bonds with the inner wall of connecting seat, and sealing pad's shape is annular, sealing pad is hollow elastic material, the outer wall rotation of fixed axle is connected with the change cover, and has the connecting axle through hinged joint between change cover and the clamp plate, bonding between the both ends of air cushion and the inner wall of valve body respectively, be provided with the trachea between with sealing pad.
Preferably, a sealing ring is arranged between the fixing port and the rotating rod, and frictional resistance exists between the sealing ring and the rotating rod.
Preferably, the outer walls of two sides of the valve body are connected with the connecting rings through bolts, and the outer walls of one side of the two connecting rings are adhered with sealing sheets.
Preferably, a positioning groove is formed in the inner wall of the bottom of the valve body, a positioning block is arranged on the inner wall of the positioning groove, the positioning block is connected with the ball body through a bolt, and the positioning block is matched with the positioning groove.
Preferably, the bottom outer wall of the valve body is connected with a supporting seat through a bolt, a cavity is formed in the supporting seat, a connecting hole is formed between the cavity and the positioning groove, and the inner wall of the connecting hole is rotationally connected with a pressurizing mechanism.
Preferably, the pressurizing mechanism comprises a rotating shaft, two supporting frames and two pressing rollers, the rotating shaft is connected with the positioning block through bolts, the rotating shaft is connected with the cavity through bearings in a rotating mode, the two supporting frames are respectively fixed on two sides of the rotating shaft, and the two supporting frames are connected with the two pressing rollers through bearings in a rotating mode.
Preferably, one side of valve body bottom outer wall is provided with gas storage mechanism, and gas storage mechanism includes first extrusion pad, gas holder, spring and bottom plate, the inside of first extrusion pad sets up to the cavity, bond between the inner wall of one side of first extrusion pad and cavity, pass through bolted connection between both ends of spring and valve body and the bottom plate respectively, set up the gasbag between valve body and the bottom plate, be provided with the pipe between two gasbags, be provided with the connecting pipe between gasbag and the first extrusion pad, the gas pocket has been seted up to one side of valve body bottom outer wall, the inner wall of gas pocket is provided with the blast pipe, the bottom outer wall of blast pipe is provided with the gas holder, the inner wall sliding connection of gas holder has the piston, the bottom outer wall of piston is provided with the pull rod, fixed connection between pull rod and the bottom plate.
Preferably, the inner wall of one side of the cavity is adhered with a second extrusion pad, the inside of the second extrusion pad is hollow, a through hole is formed in the valve body, a through pipe is arranged between the through hole and the second extrusion pad, a through hole is formed between the through hole and the inner wall of the valve body, and the through hole is obliquely arranged.
Preferably, the inner wall of the through hole is provided with an overflow ring, the overflow ring is formed by bonding a plurality of overflow sheets, the overflow sheets are made of elastic materials, and the overflow ring is conical.
The beneficial effects of the invention are as follows:
1. according to the invention, when the ultralow temperature ball valve is opened, the rotating wheel is rotated, the rotating wheel drives the rotating rod to rotate, at the moment, the fixed shaft rotates along with the rotation of the rotating rod, and the fixed shaft is U-shaped, so that the connecting shaft drives the pressing plate to swing reciprocally along with the rotation of the fixed shaft, and the air cushion is extruded when the pressing plate moves to one side, at the moment, gas in the air cushion is conveyed into the sealing gasket through the air pipe after being extruded, the sealing gasket bulges due to the input of the gas, and at the moment, the bulged sealing gasket is attached to the surface of the rotating rod, so that the tightness of the inside of the ultralow temperature ball valve is improved, the safety coefficient of the ultralow temperature ball valve is conveniently improved, the danger coefficient of the ultralow temperature ball valve is prevented from being increased due to the fact that the natural gas leaks due to poor tightness of the ultralow temperature ball valve, and the conveying of the ultralow temperature ball valve is further influenced;
2. according to the invention, when the ultralow-temperature ball valve is closed, the compression roller can carry out compression treatment on the first extrusion pad along with the rotation of the compression mechanism, at the moment, gas in the first extrusion pad can be conveyed into the air bag through the connecting pipe, at the moment, the air bag can bulge, the bulge air bag can push the bottom plate to move downwards, at the moment, the bottom plate can drive the drawing rod and the piston to move downwards, so that the residual natural gas in the ball valve is drawn, the natural gas is stored in the gas storage tank conveniently, and part of natural gas is prevented from being remained in the ball valve due to the closing of the ball valve, so that the natural gas is leaked from the ball valve;
3. according to the invention, through the second extrusion pad, when the ball valve is closed, the compression roller can extrude the second extrusion pad, at the moment, gas in the second extrusion pad can be conveyed into the through hole through the through pipe and is obliquely ejected out through the through hole, so that the flow speed of the natural gas can be accelerated through the gas flow, the conveying of the natural gas is accelerated, the reduction of the flow speed of the natural gas caused by the closing of the ball valve is prevented, and the natural gas is retained in the ball valve to leak.
Drawings
FIG. 1 is a schematic structural view of a top-loading ultra-low temperature ball valve according to the present invention;
FIG. 2 is a schematic diagram of the overall sectional structure of a top-loading ultra-low temperature ball valve according to the present invention;
FIG. 3 is a schematic cross-sectional view of an upper-mounted ultra-low temperature ball valve according to the present invention;
FIG. 4 is a schematic diagram of a sealing mechanism of a top-loading ultra-low temperature ball valve according to the present invention;
FIG. 5 is a schematic diagram of a gas storage mechanism of a top-loading ultra-low temperature ball valve according to the present invention;
FIG. 6 is a schematic diagram of the structure of the A part of the top-mounted ultra-low temperature ball valve according to the present invention;
FIG. 7 is a schematic diagram of the structure of the B-site of the top-mounted ultra-low temperature ball valve;
fig. 8 is a schematic diagram of the C-position structure of a top-mounted ultra-low temperature ball valve according to the present invention.
In the accompanying drawings: 1-a valve body; 2-a supporting seat; 3-connecting rings; 4-connecting seats; 5-rotating wheels; 6-a sealing mechanism; 7-a gas storage mechanism; 8-an exhaust port; 9-air inlet; 10-cavity; 11-a sealing ring; 12-rotating rod; 13-sphere; 14-guiding holes; 15-a gasket; 16-an air cushion; 17-trachea; 18-pressing plates; 19-a connecting shaft; 20-turning sleeve; 21-a fixed shaft; 22-rotating shaft; 23-supporting frames; 24-pressing rollers; 25-a bottom plate; 26-a spring; 27-an air bag; 28-a catheter; 29-an exhaust pipe; 30-connecting pipes; 31-a first squeeze pad; 32-pores; 33-an air storage tank; 34-a piston; 35-drawing a pull rod; 36-a second squeeze pad; 37-way pipe; 38-positioning blocks; 39-positioning grooves; 40-through holes; 41-perforating; 42-overflow ring.
Detailed Description
Example 1
Referring to fig. 1-4, an upper-mounted ultra-low temperature ball valve comprises a valve body 1, wherein an air inlet 9 and an air outlet 8 are respectively formed on the outer walls of two sides of the valve body 1, a connecting seat 4 is connected with the outer wall of the top of the valve body 1 through bolts, the connecting seat 4 is made of hollow materials, a fixed opening is formed on the inner wall of the top of the connecting seat 4, a rotating rod 12 is rotationally connected with the inner wall of the fixed opening, a rotating wheel 5 is connected with the outer wall of the top of the rotating rod 12 through bolts, an indication groove is formed on one side of the outer wall of the top of the rotating wheel 5, a sealing mechanism 6 is arranged on the outer wall of the bottom of the rotating rod 12, a ball 13 is arranged on the outer wall of the bottom of the sealing mechanism 6, a guide hole 14 is formed between the outer walls of two sides of the ball 13, the sealing mechanism 6 comprises a sealing gasket 15, an air cushion 16, a pressing plate 18 and a fixed shaft 21, two ends of the fixed shaft 21 are respectively connected with the rotating rod 12 and the ball 13 through bolts, the sealing gasket 15 is adhered with the inner wall of the connecting seat 4, the shape of the sealing gasket 15 is annular, the sealing gasket 15 is made of hollow elastic materials, the outer wall of the fixed shaft 21 is rotationally connected with the rotating sleeve 20, the rotating sleeve 20 and the pressing plate 18 are connected with the connecting shaft 19 through a hinge, two ends of the air cushion 16 are respectively adhered to the pressing plate 18 and the inner wall of the valve body 1, an air pipe 17 is arranged between the air cushion 16 and the sealing gasket 15, when the ultra-low temperature ball valve is opened, the rotating wheel 5 is rotated, the rotating wheel 5 can drive the rotating rod 12 to rotate, at the moment, the fixed shaft 21 rotates along with the rotation of the rotating rod 12, and the shape of the fixed shaft 21 is U-shaped, therefore, along with the rotation of the fixed shaft 21, the connecting shaft 19 can drive the pressing plate 18 to reciprocate, and when the pressing plate 18 moves to one side, the air cushion 16 is extruded, at the moment, air in the air cushion 16 can be conveyed into the sealing gasket 15 through the air pipe 17 after being extruded, and the sealing gasket 15 can bulge because of the input of gas, and at this moment, the sealing gasket 15 that bulges can laminate on the surface of bull stick 12 to improve the inside leakproofness of ultra-low temperature ball valve, so as to improve the factor of safety of ultra-low temperature ball valve, prevent to leak because the leakproofness of ultra-low temperature ball valve is relatively poor and lead to the natural gas to take place, thereby lead to the dangerous factor increase of ultra-low temperature ball valve, and then lead to the fact the influence to the transportation of natural gas.
In the invention, a sealing ring 11 is arranged between a fixed port and a rotating rod 12, and frictional resistance exists between the sealing ring 11 and the rotating rod 12.
In the invention, the outer walls of two sides of the valve body 1 are connected with the connecting rings 3 through bolts, and the outer walls of one side of the two connecting rings 3 are adhered with sealing sheets.
In the invention, a positioning groove 39 is formed in the inner wall of the bottom of the valve body 1, a positioning block 38 is arranged on the inner wall of the positioning groove 39, the positioning block 38 is connected with the ball 13 through a bolt, and the positioning block 38 is matched with the positioning groove 39.
Working principle: when the ultralow temperature ball valve is opened, the rotating wheel 5 is rotated, the rotating wheel 5 can drive the rotating rod 12 to rotate, at the moment, the fixed shaft 21 can rotate along with the rotation of the rotating rod 12, and the fixed shaft 21 is U-shaped, so that the connecting shaft 19 can drive the pressing plate 18 to swing reciprocally along with the rotation of the fixed shaft 21, and when the pressing plate 18 moves to one side, the air cushion 16 can be extruded, at the moment, gas in the air cushion 16 can be conveyed to the sealing gasket 15 through the air pipe 17 after being extruded, the sealing gasket 15 can bulge due to the input of the gas, at the moment, the bulged sealing gasket 15 can be attached to the surface of the rotating rod 12, and therefore the sealing performance of the inside of the ultralow temperature ball valve is improved, the safety coefficient of the ultralow temperature ball valve is improved, the natural gas is prevented from leaking due to poor sealing performance of the ultralow temperature ball valve, the danger coefficient of the ultralow temperature ball valve is increased, and the natural gas is prevented from being conveyed to influence.
Example 2
Referring to fig. 1-6, an upper-mounted ultra-low temperature ball valve comprises a valve body 1, wherein an air inlet 9 and an air outlet 8 are respectively formed on the outer walls of two sides of the valve body 1, a connecting seat 4 is connected with the outer wall of the top of the valve body 1 through bolts, the connecting seat 4 is made of hollow materials, a fixed opening is formed on the inner wall of the top of the connecting seat 4, a rotating rod 12 is rotationally connected with the inner wall of the fixed opening, a rotating wheel 5 is connected with the outer wall of the top of the rotating rod 12 through bolts, an indication groove is formed on one side of the outer wall of the top of the rotating wheel 5, a sealing mechanism 6 is arranged on the outer wall of the bottom of the rotating rod 12, a ball 13 is arranged on the outer wall of the bottom of the sealing mechanism 6, a guide hole 14 is formed between the outer walls of two sides of the ball 13, the sealing mechanism 6 comprises a sealing gasket 15, an air cushion 16, a pressing plate 18 and a fixed shaft 21, two ends of the fixed shaft 21 are respectively connected with the rotating rod 12 and the ball 13 through bolts, the sealing gasket 15 is bonded with the inner wall of the connecting seat 4, the shape of the sealing gasket 15 is annular, the sealing gasket 15 is made of hollow elastic materials, the outer wall of the fixed shaft 21 is rotationally connected with the rotating sleeve 20, the rotating sleeve 20 and the pressing plate 18 are connected with the connecting shaft 19 through a hinge, two ends of the air cushion 16 are respectively adhered to the pressing plate 18 and the inner wall of the valve body 1, an air pipe 17 is arranged between the air cushion 16 and the sealing gasket 15, when the ultra-low temperature ball valve is opened, the rotating wheel 5 is rotated, the rotating wheel 5 can drive the rotating rod 12 to rotate, at the moment, the fixed shaft 21 rotates along with the rotation of the rotating rod 12, and the shape of the fixed shaft 21 is U-shaped, therefore, along with the rotation of the fixed shaft 21, the connecting shaft 19 can drive the pressing plate 18 to reciprocate, and when the pressing plate 18 moves to one side, the air cushion 16 is extruded, at the moment, air in the air cushion 16 can be conveyed into the sealing gasket 15 through the air pipe 17 after being extruded, and the sealing gasket 15 can bulge because of the input of gas, and at this moment, the sealing gasket 15 that bulges can laminate on the surface of bull stick 12 to improve the inside leakproofness of ultra-low temperature ball valve, so as to improve the factor of safety of ultra-low temperature ball valve, prevent to leak because the leakproofness of ultra-low temperature ball valve is relatively poor and lead to the natural gas to take place, thereby lead to the dangerous factor increase of ultra-low temperature ball valve, and then lead to the fact the influence to the transportation of natural gas.
In the invention, a positioning groove 39 is formed in the inner wall of the bottom of the valve body 1, a positioning block 38 is arranged on the inner wall of the positioning groove 39, the positioning block 38 is connected with the ball 13 through a bolt, and the positioning block 38 is matched with the positioning groove 39.
In the invention, the outer wall of the bottom of the valve body 1 is connected with a supporting seat 2 through a bolt, a cavity 10 is formed in the supporting seat 2, a connecting hole is formed between the cavity 10 and a positioning groove 39, and the inner wall of the connecting hole is rotationally connected with a pressurizing mechanism.
In the invention, the pressurizing mechanism comprises a rotating shaft 22, two supporting frames 23 and two pressing rollers 24, the rotating shaft 22 is connected with a positioning block 38 through bolts, the rotating shaft 22 is in rotary connection with the cavity 10 through bearings, the two supporting frames 23 are respectively fixed on two sides of the rotating shaft 22, and the two supporting frames 23 are in rotary connection with the two pressing rollers 24 through bearings.
According to the invention, one side of the outer wall of the bottom of the valve body 1 is provided with the gas storage mechanism 7, the gas storage mechanism 7 comprises a first extrusion pad 31, a gas storage tank 33, a spring 26 and a bottom plate 25, the interior of the first extrusion pad 31 is hollow, the first extrusion pad 31 is adhered to one side inner wall of the cavity 10, two ends of the spring 26 are respectively connected with the valve body 1 and the bottom plate 25 through bolts, an air bag 27 is arranged between the valve body 1 and the bottom plate 25, a conduit 28 is arranged between the two air bags 27, a connecting pipe 30 is arranged between the air bag 27 and the first extrusion pad 31, one side of the outer wall of the bottom of the valve body 1 is provided with a gas hole 32, the inner wall of the gas hole 32 is provided with a gas exhaust pipe 29, the outer wall of the bottom of the gas exhaust pipe 29 is provided with a gas storage tank 33, the inner wall of the gas storage tank 33 is in a sliding connection with a piston 34, the outer wall of the bottom of the piston 34 is provided with a pull rod 35, the pull rod 35 is fixedly connected with the bottom plate 25, when the ultra-low temperature ball valve is closed, the pressure roller 24 is used for carrying out pressure treatment on the first extrusion pad 31 through bolts, at this moment, gas in the interior of the first extrusion pad 31 is conveyed to the interior of the air bag 27 through the connecting pipe 30, the air bag 27, the interior, the air bag 27 is blown by the inner part, the air bag 27 is blown out the air at this moment, the bottom of the air bag 27, the bottom of the air valve is pushed to the bottom of the ball valve, and the air valve is blown out the bottom of the ball valve, and the bottom valve is conveniently blown down, and the natural gas is moved down inside the natural gas inside the bottom valve is conveniently to be left inside the natural gas inside the bottom valve, and left inside the bottom valve, and is conveniently left inside the air gas inside and can be stored, and can be closed.
Working principle: when opening ultra-low temperature ball valve, rotate runner 5, runner 5 can drive bull stick 12 and rotate, this moment, fixed axle 21 can rotate along with the rotation of bull stick 12, because fixed axle 21's shape is the U type, consequently, along with fixed axle 21's rotation, connecting axle 19 can drive clamp plate 18 and carry out reciprocating swing, and can carry out extrusion processing to air cushion 16 when clamp plate 18 moves to one side, this moment, the inside gas of air cushion 16 can carry to the inside of sealed pad 15 through trachea 17 after receiving the extrusion, and sealed pad 15 can bulge because of the input of gas, this moment, the sealed pad 15 of bulge can laminate at the surface of bull stick 12, thereby improve the leakproofness of ultra-low temperature ball valve inside, thereby be convenient for improve the factor of safety of ultra-low temperature ball valve, prevent because ultra-low temperature ball valve's leakproofness is relatively poor and lead to the natural gas to take place to leak, thereby lead to ultra-low temperature ball valve's dangerous factor increase, and then lead to the influence to the transportation of natural gas, when closing ultra-low temperature ball valve, when the rotation of pressurizing mechanism, press roll 24 can carry out pressurization processing to first extrusion pad 31, can carry out the inside gas through trachea 17 to carry to the inside 15, and seal pad 31 can carry to the inside at this moment, and carry out the inside through connecting pipe 30 and take off the inside part of the inside is blown-down to the bottom plate 27, thereby the natural gas is taken out at the bottom plate 25 is convenient for the bottom plate 25 is moved to be the bottom plate 25, the inside is blown out, the natural gas is easy to be inside to be blown down to the inside the ball valve is moved, this inside is moved to the inside the ball valve is moved.
Example 3
Referring to fig. 1-8, an upper-mounted ultra-low temperature ball valve comprises a valve body 1, wherein an air inlet 9 and an air outlet 8 are respectively formed on the outer walls of two sides of the valve body 1, a connecting seat 4 is connected with the outer wall of the top of the valve body 1 through bolts, the connecting seat 4 is made of hollow materials, a fixed opening is formed on the inner wall of the top of the connecting seat 4, a rotating rod 12 is rotationally connected with the inner wall of the fixed opening, a rotating wheel 5 is connected with the outer wall of the top of the rotating rod 12 through bolts, an indication groove is formed on one side of the outer wall of the top of the rotating wheel 5, a sealing mechanism 6 is arranged on the outer wall of the bottom of the rotating rod 12, a ball 13 is arranged on the outer wall of the bottom of the sealing mechanism 6, a guide hole 14 is formed between the outer walls of two sides of the ball 13, the sealing mechanism 6 comprises a sealing gasket 15, an air cushion 16, a pressing plate 18 and a fixed shaft 21, two ends of the fixed shaft 21 are respectively connected with the rotating rod 12 and the ball 13 through bolts, the sealing gasket 15 is bonded with the inner wall of the connecting seat 4, the shape of the sealing gasket 15 is annular, the sealing gasket 15 is made of hollow elastic materials, the outer wall of the fixed shaft 21 is rotationally connected with the rotating sleeve 20, the rotating sleeve 20 and the pressing plate 18 are connected with the connecting shaft 19 through a hinge, two ends of the air cushion 16 are respectively adhered to the pressing plate 18 and the inner wall of the valve body 1, an air pipe 17 is arranged between the air cushion 16 and the sealing gasket 15, when the ultra-low temperature ball valve is opened, the rotating wheel 5 is rotated, the rotating wheel 5 can drive the rotating rod 12 to rotate, at the moment, the fixed shaft 21 rotates along with the rotation of the rotating rod 12, and the shape of the fixed shaft 21 is U-shaped, therefore, along with the rotation of the fixed shaft 21, the connecting shaft 19 can drive the pressing plate 18 to reciprocate, and when the pressing plate 18 moves to one side, the air cushion 16 is extruded, at the moment, air in the air cushion 16 can be conveyed into the sealing gasket 15 through the air pipe 17 after being extruded, and the sealing gasket 15 can bulge because of the input of gas, and at this moment, the sealing gasket 15 that bulges can laminate on the surface of bull stick 12 to improve the inside leakproofness of ultra-low temperature ball valve, so as to improve the factor of safety of ultra-low temperature ball valve, prevent to leak because the leakproofness of ultra-low temperature ball valve is relatively poor and lead to the natural gas to take place, thereby lead to the dangerous factor increase of ultra-low temperature ball valve, and then lead to the fact the influence to the transportation of natural gas.
In the invention, a positioning groove 39 is formed in the inner wall of the bottom of the valve body 1, a positioning block 38 is arranged on the inner wall of the positioning groove 39, the positioning block 38 is connected with the ball 13 through a bolt, and the positioning block 38 is matched with the positioning groove 39.
In the invention, the outer wall of the bottom of the valve body 1 is connected with a supporting seat 2 through a bolt, a cavity 10 is formed in the supporting seat 2, a connecting hole is formed between the cavity 10 and a positioning groove 39, and the inner wall of the connecting hole is rotationally connected with a pressurizing mechanism.
In the invention, the pressurizing mechanism comprises a rotating shaft 22, two supporting frames 23 and two pressing rollers 24, the rotating shaft 22 is connected with a positioning block 38 through bolts, the rotating shaft 22 is in rotary connection with the cavity 10 through bearings, the two supporting frames 23 are respectively fixed on two sides of the rotating shaft 22, and the two supporting frames 23 are in rotary connection with the two pressing rollers 24 through bearings.
According to the invention, the second extrusion pad 36 is adhered to the inner wall of one side of the cavity 10, the second extrusion pad 36 is hollow, the through hole 40 is formed in the valve body 1, the through hole 37 is formed between the through hole 40 and the second extrusion pad 36, the through hole 41 is formed between the through hole 40 and the inner wall of the valve body 1, the through hole 41 is obliquely arranged, when the ball valve is closed, the compression roller 24 can extrude the second extrusion pad 36, at the moment, gas in the second extrusion pad 36 is conveyed to the inside of the through hole 40 through the through hole 37 and is obliquely ejected through the through hole 41, so that the flow speed of natural gas can be accelerated through the gas flow, the conveying of the natural gas is accelerated, the reduction of the flow speed of the natural gas due to closing is prevented, and the natural gas is retained in the ball valve, so that the natural gas leaks.
In the present invention, the inner wall of the through hole 41 is provided with the overflow ring 42, and the overflow ring 42 is formed by bonding a plurality of overflow sheets, the overflow sheets are made of elastic materials, and the overflow ring 42 is tapered, so that the natural gas can be prevented from flowing back into the second extrusion pad 36.
Working principle: when the ultralow temperature ball valve is opened, the rotating wheel 5 is rotated, the rotating wheel 5 can drive the rotating rod 12 to rotate, at this moment, the fixed shaft 21 can rotate along with the rotation of the rotating rod 12, and because the shape of the fixed shaft 21 is U-shaped, therefore, along with the rotation of the fixed shaft 21, the connecting shaft 19 can drive the pressing plate 18 to swing reciprocally, and when the pressing plate 18 moves to one side, the air cushion 16 can be extruded, at this moment, the gas inside the air cushion 16 can be conveyed to the inside of the sealing gasket 15 through the air pipe 17 after being extruded, and the sealing gasket 15 can bulge due to the input of the gas, at this moment, the bulged sealing gasket 15 can be attached to the surface of the rotating rod 12, so that the sealing property of the ultralow temperature ball valve is improved, and the leakage of natural gas is prevented due to the poor sealing property of the ultralow temperature ball valve, so that the dangerous coefficient of the ultralow temperature ball valve is increased, and then the influence on the conveying of the natural gas is caused, when the ball valve is closed, the pressing roller 24 can extrude the second extruding gasket 36, at this moment, the gas inside the second extruding gasket 36 can be conveyed to the inside the through pipe 37, and the inside the through hole 41, and the natural gas flow can be prevented from being leaked out due to the fact that the natural gas is inclined through the perforation, the natural gas flow is accelerated, and the natural gas flow can be prevented from flowing inside the ball valve, and the natural gas is accelerated.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides an upper-mounted ultralow temperature ball valve, includes valve body (1), air inlet (9) and gas vent (8) have been seted up respectively to the both sides outer wall of valve body (1), there is connecting seat (4) top outer wall of valve body (1) through bolted connection, and connecting seat (4) are hollow material, fixed mouth has been seted up to the top inner wall of connecting seat (4), and the inner wall rotation of fixed mouth is connected with bull stick (12), there is runner (5) top outer wall of bull stick (12) through bolted connection, and one side of runner (5) top outer wall has seted up the instruction groove, characterized in that, the bottom outer wall of bull stick (12) is provided with sealing mechanism (6), and sealing mechanism (6) bottom outer wall is provided with spheroid (13), offer guide hole (14) between the both sides outer wall of spheroid (13), sealing mechanism (6) are sealed pad (15), clamp plate (18) and fixed axle (21), and through bolted connection between the both ends of fixed axle (21) respectively with bull stick (12) and spheroid (13), sealed pad (15) and connecting seat (4) are sealed the outer wall (20) of annular, sealed air cushion (20) have, sealed the shape of outer wall (20), the air cushion is characterized in that a connecting shaft (19) is connected between the rotating sleeve (20) and the pressing plate (18) through a hinge, two ends of the air cushion (16) are respectively adhered to the inner walls of the pressing plate (18) and the valve body (1), an air pipe (17) is arranged between the air cushion (16) and the sealing gasket (15), a supporting seat (2) is connected to the outer wall of the bottom of the valve body (1) through a bolt, a cavity (10) is formed in the supporting seat (2), a connecting hole is formed in the inner wall of the cavity (10) and a positioning groove (39), a pressurizing mechanism is rotatably connected to the inner wall of the connecting hole, the pressurizing mechanism comprises a rotating shaft (22), two supporting frames (23) and two pressing rollers (24), the rotating shaft (22) is connected with a positioning block (38) through bolts, the rotating shaft (22) is rotatably connected with the cavity (10) through a bearing, the two supporting frames (23) are respectively fixed to two sides of the rotating shaft (22), one side of the outer wall of the bottom of the valve body (1) is provided with a gas storage mechanism (7), the gas storage mechanism (7) comprises a first compression spring (31), a compression cushion (31) and a first compression cushion (31) are arranged in the hollow bottom plate (33), bonding between one side inner wall of first extrusion pad (31) and cavity (10), through bolted connection between both ends of spring (26) and valve body (1) and bottom plate (25) respectively, set up gasbag (27) between valve body (1) and bottom plate (25), be provided with pipe (28) between two gasbags (27), be provided with connecting pipe (30) between gasbag (27) and first extrusion pad (31), gas pocket (32) have been seted up to one side of valve body (1) bottom outer wall, the inner wall of gas pocket (32) is provided with blast pipe (29), the bottom outer wall of blast pipe (29) is provided with gas holder (33), the inner wall sliding connection of gas holder (33) has piston (34), the bottom outer wall of piston (34) is provided with pull rod (35), fixed connection between pull rod (35) and bottom plate (25), one side inner wall of cavity (10) bonds and has second extrusion pad (36), and the inside of second extrusion pad (36) is the cavity setting for cavity, through-hole (40) have been seted up in the inside of valve body (1), be provided with between through-hole (40) and second extrusion pad (36) through-hole (37), be provided with between extrusion (40) and the inner wall (41) slope of valve body (41).
2. The top-mounted ultra-low temperature ball valve according to claim 1, wherein a sealing ring (11) is arranged between the fixed port and the rotating rod (12), and frictional resistance exists between the sealing ring (11) and the rotating rod (12).
3. The upper-mounted ultra-low temperature ball valve according to claim 1, wherein the outer walls of the two sides of the valve body (1) are connected with connecting rings (3) through bolts, and sealing sheets are adhered to the outer walls of one side of the two connecting rings (3).
4. A top-mounted ultra-low temperature ball valve according to claim 1 or 3, wherein a positioning groove (39) is formed in the inner wall of the bottom of the valve body (1), a positioning block (38) is arranged on the inner wall of the positioning groove (39), the positioning block (38) is connected with the ball body (13) through a bolt, and the positioning block (38) is matched with the positioning groove (39).
5. The top-mounted ultra-low temperature ball valve according to claim 1, wherein the inner wall of the through hole (41) is provided with an overflow ring (42), the overflow ring (42) is formed by bonding a plurality of overflow sheets, the overflow sheets are made of elastic materials, and the overflow ring (42) is conical in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210348539.0A CN114738546B (en) | 2022-04-01 | 2022-04-01 | Top-mounted ultra-low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210348539.0A CN114738546B (en) | 2022-04-01 | 2022-04-01 | Top-mounted ultra-low temperature ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114738546A CN114738546A (en) | 2022-07-12 |
| CN114738546B true CN114738546B (en) | 2023-08-15 |
Family
ID=82280409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210348539.0A Active CN114738546B (en) | 2022-04-01 | 2022-04-01 | Top-mounted ultra-low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114738546B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU39860A1 (en) * | 1960-07-18 | 1961-05-06 | ||
| JPH0972456A (en) * | 1995-09-05 | 1997-03-18 | Ishikawajima Harima Heavy Ind Co Ltd | Secondary seal device for low temperature tank top piping and valve replacement method using secondary seal device |
| KR200250649Y1 (en) * | 2001-07-14 | 2001-10-19 | 선원밸브 주식회사 | Ball valve for high pressure |
| KR101826147B1 (en) * | 2016-08-16 | 2018-02-06 | 에스앤에스밸브(주) | Top entry ball valve |
| CN112555449A (en) * | 2020-12-02 | 2021-03-26 | 超核阀门有限公司 | Ultra-low temperature fixed ball valve |
| CN113738906A (en) * | 2021-09-17 | 2021-12-03 | 浙江德卡控制阀仪表有限公司 | Mixed sealed top-mounted low-temperature ball valve |
-
2022
- 2022-04-01 CN CN202210348539.0A patent/CN114738546B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU39860A1 (en) * | 1960-07-18 | 1961-05-06 | ||
| JPH0972456A (en) * | 1995-09-05 | 1997-03-18 | Ishikawajima Harima Heavy Ind Co Ltd | Secondary seal device for low temperature tank top piping and valve replacement method using secondary seal device |
| KR200250649Y1 (en) * | 2001-07-14 | 2001-10-19 | 선원밸브 주식회사 | Ball valve for high pressure |
| KR101826147B1 (en) * | 2016-08-16 | 2018-02-06 | 에스앤에스밸브(주) | Top entry ball valve |
| CN112555449A (en) * | 2020-12-02 | 2021-03-26 | 超核阀门有限公司 | Ultra-low temperature fixed ball valve |
| CN113738906A (en) * | 2021-09-17 | 2021-12-03 | 浙江德卡控制阀仪表有限公司 | Mixed sealed top-mounted low-temperature ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114738546A (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110206961A (en) | Plugging system in a kind of pipe robot | |
| CN114738546B (en) | Top-mounted ultra-low temperature ball valve | |
| CN212173803U (en) | Toughened glass processing and conveying device | |
| CN106988743A (en) | Carbon dioxide fracturing device inflating machine | |
| CN206853406U (en) | A kind of chloromethanes compressor tail gas recycling device | |
| CN110375122B (en) | Glass fiber reinforced plastic composite pipeline | |
| CN208918454U (en) | A kind of cleaning hermatic door | |
| CN205606188U (en) | Liquid nitrogen recovery unit | |
| CN205898394U (en) | Surplus rubbish vacuum transportation pipeline air tightness testing device of meal | |
| CN115949882A (en) | Multistage leakproof carbon dioxide collecting device and using method | |
| CN206966329U (en) | A kind of strip surface vacuum residul liquid-removing device | |
| CN207172976U (en) | A kind of refrigeration mechanism for solvent-free composite machine | |
| CN109442060B (en) | Bag type water quantity adjusting device with large opening degree of discharge door device | |
| CN108488423A (en) | A kind of multi-sealed supercharging ball valve | |
| CN205589752U (en) | One -way continuous goes out stock solution device of liquid | |
| CN208994306U (en) | A kind of bag in bag air bag that sack is self-locking | |
| CN208331312U (en) | A kind of multi-sealed pressurization ball valve | |
| CN207049411U (en) | A kind of pressure piping check-valves | |
| CN205710724U (en) | Sound connection part waste gas synchronous sealing device | |
| CN105950445B (en) | Sound connection part waste gas synchronous sealing device | |
| CN207527283U (en) | Oxygen-enriched air acquires filling all-in-one machine | |
| CN202132556U (en) | Ball valve with non-return function | |
| CN110762258A (en) | Ultrahigh-temperature high-pressure large-caliber check valve | |
| CN207034214U (en) | It is a kind of from pressurising bidirectional sealed butterfly valve | |
| CN206802326U (en) | A kind of flexible butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |