CN112555449A - Ultra-low temperature fixed ball valve - Google Patents
Ultra-low temperature fixed ball valve Download PDFInfo
- Publication number
- CN112555449A CN112555449A CN202011395528.5A CN202011395528A CN112555449A CN 112555449 A CN112555449 A CN 112555449A CN 202011395528 A CN202011395528 A CN 202011395528A CN 112555449 A CN112555449 A CN 112555449A
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- China
- Prior art keywords
- rod
- sealing
- air chamber
- ultra
- low temperature
- 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.)
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Classifications
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- 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
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- 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
- F16K5/0647—Spindles or actuating means
-
- 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
- F16K5/0689—Packings between housing and plug
-
- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
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- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- 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
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/205—Sealing effected by the flowing medium
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to the technical field of ultralow-temperature valves and discloses an ultralow-temperature fixed ball valve which comprises a valve body, wherein a flow channel is arranged in the valve body, a sealing ball is rotatably arranged in the middle of the interior of the valve body, an air pipe is fixedly arranged above an air bag, a sealing rod is movably arranged below a first air chamber, a second air chamber is fixedly arranged below the sealing rod, a piston chamber is fixedly arranged above the left side of a cam, a rotating wheel is rotatably arranged below a piston rod, and a baffle is rotatably arranged in the sealing plate. This fixed ball valve of ultra-low temperature, through the gaseous surface contact who promotes sealing rod and ball sealer in the first air chamber, simultaneously gaseous entering into the second air chamber and drive the cam and rotate for the baffle of closing plate inside rotates and closes the runner, when simultaneously inside has fluid to leak, the runner rotates and makes and produce more gas in the first air chamber this moment, lets sealing rod and ball sealer laminating inseparabler, sealing device automatically regulated's effect when having realized the inside leakage of valve body.
Description
Technical Field
The invention relates to the technical field of ultralow temperature valves, in particular to an ultralow temperature fixed ball valve.
Background
The ultralow temperature valve is a valve suitable for medium temperature below 150 ℃, and is mainly used for chemical devices such as ethylene, liquefied natural gas and the like, the sealing ring is pressed on a spherical surface by a spiral spring in practical application of the existing ultralow temperature valve, dust particles are easily accumulated between the springs to cause the spring to be blocked and cannot extrude the sealing ring in the use process, and meanwhile, the sealing ring in the existing ball valve is extruded under a low temperature state for a long time to cause easy aging and gradual loss of sealing performance, so that the sealing effect is poor.
Accordingly, those skilled in the art have provided an ultra-low temperature fixed ball valve to solve the problems set forth in the background art described above.
Summary of the invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an ultralow-temperature fixed ball valve which has the advantages that a spring is not needed for sealing the inside of the ball valve, a sealing device can be automatically adjusted when the inside of the ball valve leaks, and the problems that a sealing ring cannot be extruded and the sealing ring is easy to age in a low-temperature state for a long time due to the fact that the spring in the existing ball valve is easy to block are solved.
(II) technical scheme
In order to achieve the purpose that the inside of the ball valve is sealed without a spring and the sealing device can be automatically adjusted when the inside of the ball valve leaks, the invention provides the following technical scheme:
an ultra-low temperature fixed ball valve comprises a valve body, wherein a flow channel is arranged in the valve body, outer pipes are movably arranged at two sides of the flow channel, a sealing ball is rotatably arranged in the middle of the interior of the valve body, a driving rod is rotatably arranged above the sealing ball, an ejector rod is movably arranged in the driving rod, a supporting spring is fixedly arranged below the ejector rod, a screw rod is fixedly arranged at the lower end of the sealing ball, rotating rods are rotatably arranged at two sides of the driving rod, a stabilizing spring is fixedly arranged above the rotating rods, a moving rod is movably arranged below the outer end of the rotating rods, an air bag is fixedly arranged at the lower end of the moving rod, an air pipe is fixedly arranged above the air bag, a control valve is fixedly arranged in the air pipe, a first air chamber is fixedly arranged above the control valve, a sealing rod is movably arranged below the first air chamber, a second, the upper left side fixed mounting of cam has the piston room, and the inside movable mounting of piston room has the piston rod, and the below of piston rod is rotated and is installed the runner, and the right side below of runner is rotated and is installed the closing plate, and the inside of closing plate is rotated and is installed the baffle, and the outside fixed mounting of baffle has reset spring.
Preferably, the outside threaded connection of screw rod has the slide, can drive the slide through the screw thread and remove when the screw rod rotates to make the dwang of slide extrusion below rotate.
Preferably, a stop block is arranged on the outer side of the moving rod and matched with the control valve, and when the moving rod moves, the control valve can be adjusted through the stop block.
Preferably, the inside fixedly connected with worm of cam, and the outside meshing of worm and closing plate is connected, can drive inside worm when the cam rotates and rotate to drive the closing plate and rotate.
Preferably, the piston chamber is internally and rotatably provided with a convex rod, a connecting rod is movably connected between the convex rod and the rotating wheel, and when the rotating wheel rotates, the connecting rod on the outer side can drive the convex rod inside the piston chamber to rotate.
Preferably, the runners use the center line of the driving rod as a reference line for symmetrical distribution, and the symmetrically distributed runners can realize that the installation direction of the valve body can be adjusted at will without affecting the sealing effect of the valve body.
(III) advantageous effects
Compared with the prior art, the invention provides an ultralow temperature fixed ball valve, which has the following beneficial effects:
1. this fixed ball valve of ultra-low temperature, when upwards moving through the actuating lever, can drive the dwang rotation of both sides, make the carriage release, and drive the gasbag of below and the outside contact of sealing ball, the dog through the outside drives the control valve rotation during the carriage release simultaneously, open the trachea that the gasbag top corresponds, close the trachea of sealing rod top simultaneously, then the fluid passes through the runner, make the runner rotate and drive the inside nose bar rotation of piston chamber through the connecting rod, make nose bar extrusion piston rod motion, extrude the gas in the piston chamber to the gasbag, make gasbag inflation inseparabler with the surface laminating of sealing ball, realized need not the spring and can carry out sealed effect to the valve body is inside, sealed effect is better for the spring.
2. This fixed ball valve of ultra-low temperature, trachea through sealing rod top is opened, thereby the gaseous surface contact who promotes sealing rod and ball sealer in the first air chamber, thereby make gasbag and sealing rod sealed in turn, the wearing and tearing of gasbag and sealing rod have been reduced, make sealed effect lasting, simultaneously gas enters into in the second air chamber and drives the cam rotation, thereby make the inside baffle of closing plate rotate and close the runner, when inside has the fluid to leak, the runner rotates and makes and produce more gas in the first air chamber this moment, let sealing rod and ball sealer laminating inseparabler, sealing device automatically regulated's effect when having realized the inside leakage of valve body, avoided the sealing washer to age easily at low temperature for a long time and cause sealed effect not good.
Drawings
FIG. 1 is a schematic view of the interior of the structure of the present invention;
FIG. 2 is an enlarged view of the structure shown in FIG. 1 at A according to the present invention;
FIG. 3 is a partial schematic view of the structure of the present invention;
FIG. 4 is an enlarged view of the structure shown at B in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 3 at C according to the present invention;
FIG. 6 is a side internal view of a seal plate structure according to the present invention;
FIG. 7 is a schematic side view of the internal movement of the seal plate structure of the present invention.
In the figure: 1. a valve body; 2. a flow channel; 3. an outer tube; 4. a sealing ball; 5. a drive rod; 501. a top rod; 6. a support spring; 7. a screw; 8. rotating the rod; 9. a stabilizing spring; 10. a travel bar; 11. an air bag; 12. an air tube; 13. a control valve; 14. a first air chamber; 15. a sealing rod; 16. a second air chamber; 17. a cam; 18. a piston chamber; 19. a piston rod; 20. a rotating wheel; 21. a sealing plate; 22. a baffle plate; 23. a return spring.
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. 1-7, an ultra-low temperature fixed ball valve comprises a valve body 1, a flow channel 2 is arranged inside the valve body 1, outer tubes 3 are movably arranged at two sides of the flow channel 2, a sealing ball 4 is rotatably arranged in the middle inside the valve body 1, a driving rod 5 is rotatably arranged above the sealing ball 4, a mandril 501 is movably arranged inside the driving rod 5, a supporting spring 6 is fixedly arranged below the mandril 501, a screw 7 is fixedly arranged at the lower end of the sealing ball 4, a sliding seat is in threaded connection with the outer side of the screw 7, the sliding seat is driven to move by threads when the screw 7 rotates, so that the rotating rod 8 below the sliding seat is extruded to rotate, rotating rods 8 are rotatably arranged at two sides of the driving rod 5, a stabilizing spring 9 is fixedly arranged above the rotating rod 8, a moving rod 10 is movably arranged below the outer, and the stopper cooperates with the control valve 13, when the movable rod 10 moves, the control valve 13 can be adjusted through the stopper, the lower end of the movable rod 10 is fixedly provided with the air bag 11, the upper part of the air bag 11 is fixedly provided with the air pipe 12, the inner part of the air pipe 12 is fixedly provided with the control valve 13, and the upper part of the control valve 13 is fixedly provided with the first air chamber 14.
A sealing rod 15 is movably arranged below the first air chamber 14, a second air chamber 16 is fixedly arranged below the sealing rod 15, a cam 17 is rotatably arranged inside the second air chamber 16, a worm is fixedly connected inside the cam 17 and is meshed and connected with the outer side of the sealing plate 21, when the cam 17 rotates, the worm inside is driven to rotate and drives the sealing plate 21 to rotate, a piston chamber 18 is fixedly arranged above the left side of the cam 17, a convex rod is rotatably arranged inside the piston chamber 18, a connecting rod is movably connected between the convex rod and the rotating wheel 20, when the rotating wheel 20 rotates, the convex rod inside the piston chamber 18 is driven to rotate through the connecting rod outside, a piston rod 19 is movably arranged inside the piston chamber 18, a rotating wheel 20 is rotatably arranged below the piston rod 19, the rotating wheel 20 is symmetrically distributed by taking the central line of the driving rod 5 as a reference line, and the symmetrically distributed rotating wheel 20 can realize that the installation direction of the valve body 1 can be adjusted arbitrarily, all can not influence the sealed effect of valve body 1, the right side below of runner 20 is rotated and is installed sealing plate 21, and the inside rotation of sealing plate 21 installs baffle 22, and the outside fixed mounting of baffle 22 has reset spring 23.
The working principle is as follows: when the valve body 1 needs to be opened, the driving rod 5 is rotated clockwise at the moment, so that the driving rod 5 moves upwards, the ejector rods 501 on the two sides drive the sealing ball 4 to rotate, the flow channel 2 is unblocked, meanwhile, when the driving rod 5 moves upwards, the rotating rods 8 on the two sides are driven to rotate, the moving rod 10 moves, the airbag 11 below is driven to contact with the outer side of the sealing ball 4, meanwhile, the moving rod 10 drives the control valve 13 to rotate through the stop block on the outer side when moving, the corresponding air pipe 12 above the airbag 11 is opened, the air pipe above the sealing rod 15 is closed, then, fluid passes through the flow channel 2, the rotating wheel 20 rotates, the convex rod inside the piston chamber 18 is driven to rotate through the connecting rod, the convex rod extrudes the piston rod 19 to move, so that the gas in the piston chamber 18 is extruded into the first air chamber 14 to be stored, and then the gas in the first air chamber 14 enters the airbag 11 through the, make gasbag 11 inflation and the laminating of the surface of ball sealer 4 inseparabler to realized need not the spring and sealed the inside of valve body 1, it is better for the spring seal effect.
When the sealing ball 4 is closed, the rotating rod 8 and the moving rod 10 are in an initial state at this time, so that the air bag 11 is separated from the surface of the sealing ball 4, the air pipe 12 above the air bag 11 is closed, the air pipe 12 above the sealing rod 15 is opened, so that the air in the first air chamber 14 pushes the sealing rod 15 to contact with the surface of the sealing ball 4, so that the air bag 11 and the sealing rod 15 are alternately sealed in the opened and closed states of the sealing ball 4, the abrasion of the air bag 11 and the sealing rod 15 is reduced, the sealing effect is durable, meanwhile, the air enters the second air chamber 16 and drives the cam 17 to rotate, so that the worm inside the cam 17 rotates and drives the sealing plate 21 to rotate, so that the baffle 22 inside the sealing plate 21 rotates to close the flow channel 2, when fluid leaks inside, the rotating wheel 20 rotates at this time, so that more air is generated in the first air chamber 14, and the sealing rod 15 is attached to the sealing ball 4 more tightly, and the baffle 22 is tightly attached, so that the automatic adjustment of the sealing device when the inside of the valve body 1 is leaked is realized, and the problem that the sealing effect is poor due to the fact that the sealing ring is easy to age at a low temperature for a long time is avoided.
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 (6)
1. The utility model provides a fixed ball valve of ultra-low temperature, includes valve body (1), its characterized in that: the inner part of the valve body (1) is provided with a flow channel (2), both sides of the flow channel (2) are movably provided with an outer tube (3), the middle part of the inner part of the valve body (1) is rotatably provided with a sealing ball (4), the upper part of the sealing ball (4) is rotatably provided with a driving rod (5), the inner part of the driving rod (5) is movably provided with a push rod (501), the lower part of the push rod (501) is fixedly provided with a supporting spring (6), the lower end of the sealing ball (4) is fixedly provided with a screw rod (7), both sides of the driving rod (5) are rotatably provided with a rotating rod (8), the upper part of the rotating rod (8) is fixedly provided with a stabilizing spring (9), the lower part of the outer end of the rotating rod (8) is movably provided with a moving rod (10), the lower end of the moving rod (10) is fixedly provided with, the upper portion fixed mounting of control valve (13) has first air chamber (14), the below movable mounting of first air chamber (14) has sealing rod (15), the below fixed mounting of sealing rod (15) has second air chamber (16), cam (17) are installed in the inside rotation of second air chamber (16), the upper left side fixed mounting of cam (17) has piston chamber (18), the inside movable mounting of piston chamber (18) has piston rod (19), the below of piston rod (19) is rotated and is installed runner (20), the right side below of runner (20) is rotated and is installed closing plate (21), the inside rotation of closing plate (21) installs baffle (22), the outside fixed mounting of baffle (22) has reset spring (23).
2. An ultra-low temperature fixed ball valve according to claim 1, wherein: the outer side of the screw rod (7) is in threaded connection with a sliding seat.
3. An ultra-low temperature fixed ball valve according to claim 1, wherein: and a stop block is arranged on the outer side of the moving rod (10) and matched with the control valve (13).
4. An ultra-low temperature fixed ball valve according to claim 1, wherein: the interior of the cam (17) is fixedly connected with a worm, and the worm is meshed and connected with the outer side of the sealing plate (21).
5. An ultra-low temperature fixed ball valve according to claim 1, wherein: a convex rod is rotatably arranged in the piston chamber (18), and a connecting rod is movably connected between the convex rod and the rotating wheel (20).
6. An ultra-low temperature fixed ball valve according to claim 1, wherein: the rotating wheels (20) are symmetrically distributed by taking the center line of the driving rod (5) as a reference line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395528.5A CN112555449A (en) | 2020-12-02 | 2020-12-02 | Ultra-low temperature fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395528.5A CN112555449A (en) | 2020-12-02 | 2020-12-02 | Ultra-low temperature fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112555449A true CN112555449A (en) | 2021-03-26 |
Family
ID=75047647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011395528.5A Withdrawn CN112555449A (en) | 2020-12-02 | 2020-12-02 | Ultra-low temperature fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112555449A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738546A (en) * | 2022-04-01 | 2022-07-12 | 特技阀门集团有限公司 | Upper-mounted ultralow-temperature ball valve |
| CN116066594A (en) * | 2023-03-03 | 2023-05-05 | 江苏远洋阀门智控股份有限公司 | Alloy steel wear-resistant hard seal ball valve |
| CN118328200A (en) * | 2024-06-14 | 2024-07-12 | 江苏诚功阀门科技有限公司 | Noise reduction adjusting ball valve |
-
2020
- 2020-12-02 CN CN202011395528.5A patent/CN112555449A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738546A (en) * | 2022-04-01 | 2022-07-12 | 特技阀门集团有限公司 | Upper-mounted ultralow-temperature ball valve |
| CN114738546B (en) * | 2022-04-01 | 2023-08-15 | 特技阀门集团有限公司 | Top-mounted ultra-low temperature ball valve |
| CN116066594A (en) * | 2023-03-03 | 2023-05-05 | 江苏远洋阀门智控股份有限公司 | Alloy steel wear-resistant hard seal ball valve |
| CN116066594B (en) * | 2023-03-03 | 2023-08-25 | 江苏远洋阀门智控股份有限公司 | Alloy steel wear-resistant hard seal ball valve |
| CN118328200A (en) * | 2024-06-14 | 2024-07-12 | 江苏诚功阀门科技有限公司 | Noise reduction adjusting ball valve |
| CN118328200B (en) * | 2024-06-14 | 2024-08-20 | 江苏诚功阀门科技有限公司 | Noise reduction adjusting ball valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210326 |
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| WW01 | Invention patent application withdrawn after publication |