CN109140012B - Double-isolation releasing fixed ball valve - Google Patents
Double-isolation releasing fixed ball valve Download PDFInfo
- Publication number
- CN109140012B CN109140012B CN201811178382.1A CN201811178382A CN109140012B CN 109140012 B CN109140012 B CN 109140012B CN 201811178382 A CN201811178382 A CN 201811178382A CN 109140012 B CN109140012 B CN 109140012B
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- valve
- valve body
- groove
- packing
- fixedly connected
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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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
- F16K5/061—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 knee-joint
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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
- F16K5/0663—Packings
- F16K5/0668—Single packings
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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
Abstract
The invention discloses a double-isolation discharging fixed ball valve which comprises a valve body, wherein a valve cover is arranged on one side of the valve body, a shell is arranged on one side of the valve body, which is far away from the valve cover, a ball body is arranged inside the valve body, valve seats are arranged on two sides of the ball body, isolating devices are respectively arranged between the valve seats and the valve body and between the valve covers, an emergency device is arranged inside the shell and comprises a first T-shaped groove, an isolating plate is arranged inside the first T-shaped groove, a through hole is formed in the middle of the shell, a first groove is formed in one side, which is far away from the first T-shaped groove, of the through hole, a second T-shaped groove is formed in one side, which is far away from the valve body, a second isolating plate is arranged inside the second T-shaped groove, a second groove is. Has the advantages that: through the cooperation of division board one and division board two, realize the sealed of through-hole, can make relevant staff replace the ball valve in a safe environment.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a double-isolation discharge fixed ball 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 ball valve is one of valves, the ball valve is appeared in 50 years of the 20 th century, and in China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy, but the traditional ball valve only adopts the rotation of a ball core to realize sealing, and the valve is easy to fail in the environment with pressure difference.
According to the fixed ball valve under water of two isolation bleeds of patent number CN205937951U, not only can realize the two-way seal of disk seat, can also be automatic when the valve pocket steps up unusually to one side pipeline pressure release moreover, effectively improved the reliability of valve, prolonged the life of valve.
However, in the above prior art, when the valve fails, the gas can be used up for gas tank and the like to be disassembled and replaced, and for the environment where the internal gas cannot be released, replacing the valve is a very dangerous thing, and an emergency measure is needed to replace the valve.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide a double-isolation discharge fixed ball valve to solve the problem of how to safely replace a valve in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a double-isolation discharging fixed ball valve comprises a valve body, wherein a valve cover is arranged on one side of the valve body, the valve body is fixedly connected with the valve cover through bolts and nuts, a shell is arranged on one side, away from the valve cover, of the valve body, the shell is connected with the valve body through a fixing device, a ball body is arranged inside the valve body, valve seats are arranged on two sides of the ball body, an isolating device is arranged between each valve seat and the valve body and between each valve seat and the valve cover, a valve rod is arranged above the ball body, one end of the valve rod is embedded into the top of the ball body, the other end of the valve rod penetrates through the valve body and is located on the outer side of the valve body, a bushing is sleeved on one side, close to the ball body, a packing device is arranged above the bushing, one end, located on the outer side of the valve, the check ring is fixedly connected with the valve rod, an emergency device is arranged inside the shell and comprises a first T-shaped groove, a first isolation plate is positioned inside the first T-shaped groove, one end of the first isolation plate is fixedly connected with a first push rod, one end of the first push rod, far away from the first isolation plate, penetrates through the shell and is positioned outside the shell, a through hole is formed in the middle of the shell, a first groove is formed in one side, far away from the first T-shaped groove, of the through hole, the first groove is matched with the first isolation plate, a first sealing gasket is fixedly connected inside the first groove, a second T-shaped groove is formed in one side, far away from the valve body, of the first groove, a second isolation plate is arranged inside the second T-shaped groove and is fixedly connected with a second push rod, one end, far away from the second isolation plate, of the push rod penetrates through the shell and is, one side of valve body is kept away from in T type groove one is equipped with recess two, recess two matches with division board two, the sealed pad two of inside fixed connection of recess two, division board one with between the T type groove one with division board two with all be equipped with sealing device between the T type groove two, division board one with division board two is kept away from one side of valve body all is equipped with stop device, the middle part of casing with the middle part of valve body is equipped with connecting device, spheroidal bottom is equipped with positioner.
Furthermore, the fixing device comprises a fixing block, two sides of one end, close to the shell, of the valve body are fixedly connected with the fixing block, and the fixing block is fixedly connected with the shell through a screw.
Furthermore, the isolating device comprises an O-shaped ring and a first spring, the first spring is arranged between the valve seat and the valve cover, two ends of the first spring are respectively connected with the valve seat and the valve cover, the O-shaped ring is arranged above the first spring, and the O-shaped ring is located between the valve seat and the valve cover and fixedly connected with the valve cover.
Furthermore, the packing device comprises a first packing pad, a first packing pressure pad is arranged above the first packing pad, the first packing pressure pad is positioned on the outer side of the valve body and is fixedly connected with the valve body through a plurality of screws, a plurality of first packing pads are arranged between the first packing pad and the first packing pressure pad, and the first packing pad and the first packing pressure pad are all sleeved on the outer surface of the valve rod.
Furthermore, the top of the packing pressure pad is fixedly connected with a positioning sheet, and the positioning sheet is connected with the handle through a gasket.
Furthermore, the outer surface of the handle is fixedly provided with a rubber sleeve.
Furthermore, the sealing device comprises a second packing pad and a second packing pad, the first isolation plate and the second isolation plate penetrate through the two second packing pads, the second packing pads are fixedly connected with the first T-shaped groove and the second T-shaped groove respectively, and the second packing pad is arranged between the second packing pads.
Further, stop device includes the draw-in groove, division board one with division board two is kept away from one side of valve body all is equipped with the draw-in groove, draw-in groove and fixture block phase-match, the one end and the pull rod fixed connection of fixture block, the pull rod is kept away from the one end of fixture block runs through the casing just is located the casing outside, the surface cover of pull rod is equipped with the spring backing plate, the spring backing plate all with T type groove one with two fixed connection in T type groove, the spring backing plate with it is equipped with spring two to fix between the casing, two twines of spring are located the surface of pull rod.
Furthermore, the connecting device comprises a ferrule, one side of the shell, which is close to the valve body, is fixedly connected with the ferrule, the outer surface of the ferrule is fixedly connected with the sealing ring, one side of the valve body, which is close to the shell, is provided with an annular groove, and the annular groove is matched with the sealing ring.
Further, positioner includes locating pin and locating pin cover, spheroidal bottom activity is equipped with the locating pin, the surface cover of locating pin is equipped with the locating pin cover, the locating pin cover with the inside bottom fixed connection of valve body.
Compared with the prior art, the invention has the following beneficial effects:
(1) through the cooperation of division board one and division board two, realize the sealed of through-hole, when the ball valve damages needs the replacement, keep apart medium in the pipeline, the separation medium spills over, improves operational environment's security, can make relevant staff replace the ball valve in a safe environment, avoids some unexpected emergence.
(2) The valve body and the shell can be connected through the fixing device, and meanwhile, the ball valve is convenient to detach and replace.
(3) When pressure difference exists between the two sides, bidirectional isolation can be realized through the isolation device, the overflow of media in the pipeline is avoided, and the use safety is improved.
(4) Avoid the medium to spill over from the valve rod through the packing device, with the medium separation in the ball valve, also can protect the valve rod not influenced by the medium simultaneously.
(5) The locating piece helps the valve rod to be located, avoids the problem that the pipeline is not closed due to the fact that the valve rod torsion angle is not right, causes loss or accidents, and the rotating angle location of the valve rod is realized by the aid of the gasket and the locating piece.
(6) The rubber sleeve can prevent static electricity, and meanwhile, the friction force can be increased, and the safety during handle rotation is improved.
(7) The medium is prevented from overflowing from the first T-shaped groove or the second T-shaped groove through the sealing device, potential safety hazards are caused, and meanwhile, the emergency device is matched to achieve the effect of sealing the environment.
(8) The limiting device limits the first isolation plate and the second isolation plate, when emergency devices do not need to be adopted, circulation of the through holes is guaranteed, normal use of the ball valve is not affected, and when the emergency devices are adopted, the limiting device can fix the first isolation plate and the second isolation plate to achieve sealing of the through holes.
(9) When the shell is connected with the valve body, the medium is prevented from overflowing, the effect that the shell is connected with the valve body in a sealed mode is achieved through the connecting device, and the use safety of the ball valve is improved.
(10) The ball body can be positioned through the positioning device, the situation that the valve fails due to dislocation in the rotating process of the ball body is avoided, and meanwhile, the ball body can rotate conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a dual isolation bleed fixed ball valve according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the internal construction of a dual isolation bleed fixed ball valve according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic diagram of the construction of an emergency device in a double isolation bleed fixed ball valve according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a housing in a fixed ball valve with double isolation and bleed in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural view of a packing device in a double isolation bleed fixed ball valve according to an embodiment of the present invention.
Reference numerals:
1. a valve body; 2. a valve cover; 3. a bolt; 4. a nut; 5. a housing; 6. a sphere; 7. a valve seat; 8. a valve stem; 9. a bushing; 10. a handle; 11. a retainer ring; 12. a first T-shaped groove; 13. a first isolation plate; 14. a first push rod; 15. a through hole; 16. a first groove; 17. a first sealing gasket; 18. a T-shaped groove II; 19. a second isolation plate; 20. a second push rod; 21. a second groove; 22. a second sealing gasket; 23. a fixed block; 24. a first screw; 25. an O-shaped ring; 26. a first spring; 27. filling a first filler; 28. a packing press pad; 29. a second screw; 30. filling one; 31. positioning plates; 32. a gasket; 33. a rubber sleeve; 34. a second filler pad; 35. a second filler; 36. a card slot; 37. a clamping block; 38. a pull rod; 39. a spring backing plate; 40. a second spring; 41. a ferrule; 42. a seal ring; 43. an annular groove; 44. positioning pins; 45. and (4) positioning the pin sleeve.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
referring to fig. 1-6, a double-isolation bleeder fixed ball valve according to an embodiment of the present invention includes a valve body 1, a valve cap 2 is disposed on one side of the valve body 1, the valve body 1 and the valve cap 2 are fixedly connected by a bolt 3 and a nut 4, a housing 5 is disposed on one side of the valve body 1 away from the valve cap 2, the housing 5 and the valve body 1 are connected by a fixing device, a ball body 6 is disposed inside the valve body 1, valve seats 7 are disposed on both sides of the ball body 6, isolating devices are disposed between the valve seats 7 and the valve body 1 and the valve cap 2, a valve rod 8 is disposed above the ball body 6, one end of the valve rod 8 is embedded in the top of the ball body 6, the other end of the valve rod 8 penetrates through the valve body 1 and is located outside the valve body 1, a bushing 9 is sleeved on one side of the valve rod 8 close to the, a packing device is arranged above the bushing 9, one end of the valve rod 8, which is positioned outside the valve body 1, is fixedly connected with the handle 10, a retainer ring 11 is arranged above the handle 10, the retainer ring 11 is fixedly connected with the valve rod 8, an emergency device is arranged inside the shell 5, the emergency device comprises a first T-shaped groove 12, a first partition plate 13 is positioned inside the first T-shaped groove 12, one end of the first partition plate 13 is fixedly connected with a first push rod 14, one end of the first push rod 14, which is far away from the first partition plate 13, penetrates through the shell 5 and is positioned outside the shell 5, a through hole 15 is arranged in the middle of the shell 5, a first groove 16 is arranged on one side, which is far away from the first T-shaped groove 12, of the through hole 15, the first groove 16 is matched with the first partition plate 13, a first sealing gasket 17 is fixedly connected inside the first groove 16, and a second T-shaped groove 18 is arranged on one side, the inside of two 18 of T type grooves is equipped with two 19 of division boards, two 19 of division boards and two 20 fixed connection of push rod, two 20 of push rod are kept away from two 19 of division boards's one end is run through casing 5 just is located the outside of casing 5, one 12 of T type grooves is kept away from one side of valve body 1 is equipped with two 21 recesses, two 21 and two 19 phase-matchs of division board, the sealed pad two 22 of inside fixed connection of two 21 recesses, one 13 of division board with between one 12 of T type grooves and two 19 of division board with all be equipped with sealing device between two 18 of T type grooves, one 13 of division board with two 19 keep away from one side of valve body 1 all is equipped with stop device, the middle part of casing 5 with the middle part of valve body 1 is equipped with connecting device, the bottom of spheroid 6 is equipped with positioner.
Through the scheme of the invention, by arranging the ball body 6, when the valve needs to be closed, the valve rod 8 is rotated through the handle 10, the positioning pin 44 is matched with the rotation of the ball body 6, when the valve is rotated to 90 degrees, the positioning sheet 31 limits the valve rod 8, so that the valve rod 8 cannot be rotated continuously, the valve is closed, when the pressure difference between two sides is inconsistent, the ball body 6 is extruded by the side with high pressure, the spring I26 is compressed, the O-shaped ring 25 is fixedly connected with the valve seat 7, the O-shaped ring 25 is extruded, the valve seat 7 is connected with the ball body 6 in a sealing way, the isolation is realized, when the valve fails due to the damage of the ball valve, the pull rod 38 is moved outwards, the spring II 40 is compressed, the clamping block 37 is separated from the clamping groove 36, the push rod I14 and the push rod II 20 are moved inwards, the isolating plate I13 and the groove I16 are clamped, the isolating plate II 19, the pull rod 38 is loosened, the pull rod 38 moves inwards under the action of the second spring 40, the first isolation plate 13 and the second isolation plate 19 are fixed by the clamping block 37, the first isolation plate 13 and the second isolation plate 19 cannot move towards two sides, the first isolation plate 13 and the second isolation plate 19 seal the through hole 15, media cannot overflow, related personnel can replace the ball valve conveniently, and the emergency device is restored after replacement is completed, so that the ball valve can work normally.
When the ball valve fixing device is specifically applied, the fixing device comprises a fixing block 23, two sides of one end, close to the shell 5, of the valve body 1 are fixedly connected with the fixing block 23, the fixing block 23 is fixedly connected with the shell 5 through a first screw 24, the valve body 1 can be connected with the shell 5 through the fixing device, and meanwhile, the ball valve is convenient to disassemble and replace; for the isolating device, the isolating device comprises an O-shaped ring 25 and a first spring 26, the first spring 26 is arranged between the valve seat 7 and the valve cover 2, two ends of the first spring 26 are respectively connected with the valve seat 7 and the valve cover 2, the O-shaped ring 25 is arranged above the first spring 26, the O-shaped ring 25 is positioned between the valve seat 7 and the valve cover 2 and is fixedly connected with the valve cover 2, when pressure difference exists between the two sides, bidirectional isolation can be realized through the isolating device, the medium in a pipeline is prevented from overflowing, and the use safety is improved; for the packing device, the packing device comprises a first packing pad 27, a first packing pressure pad 28 is arranged above the first packing pad 27, the first packing pressure pad 28 is positioned outside the valve body 1 and fixedly connected with the valve body 1 through a plurality of screws 29, a plurality of first packing 30 are arranged between the first packing pad 27 and the first packing pressure pad 28, the first packing pad 27 and the first packing pressure pad 28 are both sleeved on the outer surface of the valve rod 8, the packing device prevents a medium from overflowing from the valve rod 8, blocks the medium in the ball valve, and simultaneously can protect the valve rod 8 from the medium; for the packing pressure pad 28, the top of the packing pressure pad 28 is fixedly connected with a positioning plate 31, the positioning plate 31 is connected with the handle 10 through a gasket 32, the positioning plate 31 helps the valve rod 8 to be positioned, loss or accidents caused by unclosed pipeline due to incorrect twisting angle of the valve rod 8 are avoided, and the gasket 32 is matched with the positioning plate 31 to realize rotation angle positioning of the valve rod 8; for the handle 10, the rubber sleeve 33 is fixedly arranged on the outer surface of the handle 10, and the rubber sleeve 33 can prevent static electricity and increase friction force at the same time, so that the safety when the handle 10 is rotated is improved; for the sealing device, the sealing device comprises a second packing pad 34 and a second packing 35, the first partition plate 13 and the second partition plate 19 both penetrate through the two second packing pads 34, the second packing pads 34 are respectively fixedly connected with the first T-shaped groove 12 and the second T-shaped groove 18, the second packing 35 is arranged between the second packing pads 34, the sealing device is used for preventing a medium from overflowing from the first T-shaped groove 12 or the second T-shaped groove 18 to cause potential safety hazards, and meanwhile, the sealing device is matched with an emergency device to achieve the effect of sealing the environment; for the limiting device, the limiting device comprises a clamping groove 36, one side of the first isolating plate 13 and one side of the second isolating plate 19, which are far away from the valve body 1, are both provided with the clamping groove 36, the clamping groove 36 is matched with a clamping block 37, one end of the clamping block 37 is fixedly connected with a pull rod 38, one end of the pull rod 38, which is far away from the clamping block 37, penetrates through the shell 5 and is positioned outside the shell 5, the outer surface of the pull rod 38 is sleeved with a spring base plate 39, the spring base plate 39 is fixedly connected with the first T-shaped groove 12 and the second T-shaped groove 18, a second spring 40 is fixedly arranged between the spring base plate 39 and the shell 5, the second spring 40 is wound on the outer surface of the pull rod 38, the limiting device limits the first isolating plate 13 and the second isolating plate 19, when an emergency device is not required to be taken, the circulation of the through hole 15 is ensured, when the emergency device is adopted, the limiting device can fix the first isolation plate 13 and the second isolation plate 19, so that the through hole 15 is sealed; for the connecting device, the connecting device comprises a ferrule 41, one side of the housing 5 close to the valve body 1 is fixedly connected with the ferrule 41, the outer surface of the ferrule 41 is fixedly connected with a sealing ring 42, one side of the valve body 1 close to the housing 5 is provided with an annular groove 43, the annular groove 43 is matched with the sealing ring 42, when the housing 5 is connected with the valve body 1, the medium is prevented from overflowing, the effect of closed connection between the housing 5 and the valve body 1 is achieved through the connecting device, and the use safety of the ball valve is improved; for the positioning device, the positioning device comprises a positioning pin 44 and a positioning pin sleeve 45, the positioning pin 44 is movably arranged at the bottom of the ball body 6, the positioning pin sleeve 45 is sleeved on the outer surface of the positioning pin 44, the positioning pin sleeve 45 is fixedly connected with the inner bottom end of the valve body 1, the ball body 6 can be positioned through the positioning device, the situation that the valve fails due to dislocation in the rotating process of the ball body 6 is avoided, and meanwhile, the rotation of the ball body 6 is facilitated.
In summary, according to the above technical solution of the present invention, by providing a ball body 6, when the valve needs to be closed, the valve rod 8 is rotated by the handle 10, the positioning pin 44 cooperates with the rotation of the ball body 6, when the valve is rotated to 90 degrees, the positioning plate 31 limits the valve rod 8, so that the valve rod 8 cannot rotate continuously, the valve is closed, when the pressure difference between the two sides is inconsistent, the side with high pressure presses the ball body 6, the spring i 26 is compressed, the O-ring 25 is fixedly connected with the valve seat 7, the O-ring 25 is pressed, the valve seat 7 is connected with the ball body 6 in a sealing manner, so as to achieve isolation, when the valve fails due to damage of the ball valve, the pull rod 38 is moved outward, the spring ii 40 is compressed, the fixture block 37 is separated from the slot 36, the push rod i 14 and the push rod ii 20 are both moved inward, the first isolation plate 13 is clamped with the first groove 16, the second isolation plate 19 is, the pull rod 38 is loosened, the pull rod 38 moves inwards under the action of the spring II 40, the first partition plate 13 and the second partition plate 19 are fixed by the fixture block 37, the first partition plate 13 and the second partition plate 19 cannot move towards two sides, the first partition plate 13 and the second partition plate 19 seal the through hole 15, so that a medium cannot overflow, the ball valve is convenient to replace by related personnel, the emergency device is restored after replacement is completed, the ball valve can work normally, the sealing of the through hole 15 is realized through the first partition plate 13 and the second partition plate 19, when the ball valve is damaged and needs to be replaced, the medium in a pipeline is isolated, the medium overflows, the safety of a working environment is improved, related personnel can replace the ball valve in a safe environment, accidents are avoided, the valve body 1 and the shell 5 can be connected through the fixing device, meanwhile, the disassembly is convenient, the ball valve is convenient to replace, and when pressure difference exists between the two sides, the bidirectional isolation can be realized through the isolating device, the overflow of media in a pipeline is avoided, the use safety is improved, the overflow of the media from the valve rod 8 is avoided through the packing device, the media are separated in the ball valve, the valve rod 8 can be protected from the influence of the media, the positioning piece 31 helps the valve rod 8 to be positioned, the problem that the pipeline is not closed due to the incorrect torsion angle of the valve rod 8 is avoided, the loss or the accident is caused, the gasket 32 is matched with the positioning piece 31 to realize the rotation angle positioning of the valve rod 8, the rubber sleeve 33 can prevent static electricity, meanwhile, the friction force can be increased, the safety when the handle 10 is rotated is improved, the overflow of the media from the T-shaped groove I12 or the T-shaped groove II 18 is avoided through the sealing device to cause potential safety hazards, the emergency device is matched to achieve the effect of sealing environment, the limiting device limits the isolating plate I13 and the, guarantee through-hole 15's smoothness, do not influence the normal use of ball valve, when adopting emergency device, stop device can play fixed effect to division board 13 and division board two 19, realize the closure of through-hole 15, when casing 5 is connected with valve body 1, avoid the medium to spill over, reach casing 5 and the closed effect of being connected of valve body 1 through connecting device, improve the security that the ball valve used, can fix a position spheroid 6 through positioner, avoid spheroid 6 to lead to the condition emergence of valve inefficacy because of the dislocation at rotatory in-process.
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 (3)
1. The double-isolation bleeder fixed ball valve is characterized by comprising a valve body (1), wherein a valve cover (2) is arranged on one side of the valve body (1), the valve body (1) is fixedly connected with the valve cover (2) through a bolt (3) and a nut (4), a shell (5) is arranged on one side of the valve body (1) far away from the valve cover (2), the shell (5) is connected with the valve body (1) through a fixing device, a ball body (6) is arranged inside the valve body (1), valve seats (7) are arranged on two sides of the ball body (6), isolating devices are respectively arranged between the valve seats (7) and the valve body (1) and the valve cover (2), a valve rod (8) is arranged above the ball body (6), one end of the valve rod (8) is embedded in the top of the ball body (6), and the other end of the valve rod (8) penetrates through the valve body (1) and is positioned outside the valve body (1), one side of the valve rod (8) close to the ball body (6) is sleeved with a bushing (9), a packing device is arranged above the bushing (9), the valve rod (8) is located at one end of the outer side of the valve body (1) and fixedly connected with a handle (10), a check ring (11) is arranged above the handle (10), the check ring (11) is fixedly connected with the valve rod (8), an emergency device is arranged inside the shell (5) and comprises a first T-shaped groove (12), a first partition plate (13) is located inside the first T-shaped groove (12), one end of the first partition plate (13) is fixedly connected with a first push rod (14), one end of the first partition plate (13) far away from the first push rod (14) penetrates through the shell (5) and is located at the outer side of the shell (5), a through hole (15) is formed in the middle of the shell (5), one side of the first T-shaped groove (12) far away from the through hole (15) is provided with a first groove (16), the first groove (16) is matched with the first isolation plate (13), the first internal fixed connection sealing gasket (17) of the first groove (16), one side of the first groove (16) far away from the valve body (1) is provided with a second T-shaped groove (18), the second isolation plate (19) is arranged inside the second T-shaped groove (18), the second isolation plate (19) is fixedly connected with a second push rod (20), one end of the second push rod (20) far away from the second isolation plate (19) penetrates through the shell (5) and is positioned outside the shell (5), one side of the first T-shaped groove (12) far away from the valve body (1) is provided with a second groove (21), the second groove (21) is matched with the second isolation plate (19), and the second internal fixed connection sealing gasket (22) of the second groove (21), sealing devices are arranged between the first isolation plate (13) and the first T-shaped groove (12) and between the second isolation plate (19) and the second T-shaped groove (18), limiting devices are arranged on the sides, far away from the valve body (1), of the first isolation plate (13) and the second isolation plate (19), connecting devices are arranged in the middle of the shell (5) and the middle of the valve body (1), and a positioning device is arranged at the bottom end of the ball body (6);
the fixing device comprises a fixing block (23), two sides of one end, close to the shell (5), of the valve body (1) are fixedly connected with the fixing block (23), and the fixing block (23) is fixedly connected with the shell (5) through a first screw (24); the isolation device comprises an O-shaped ring (25) and a first spring (26), the first spring (26) is arranged between the valve seat (7) and the valve cover (2), two ends of the first spring (26) are respectively connected with the valve seat (7) and the valve cover (2), the O-shaped ring (25) is arranged above the first spring (26), and the O-shaped ring (25) is positioned between the valve seat (7) and the valve cover (2) and is fixedly connected with the valve cover (2); the packing device comprises a first packing pad (27), a packing pressure pad (28) is arranged above the first packing pad (27), the packing pressure pad (28) is positioned on the outer side of the valve body (1) and is fixedly connected with the valve body (1) through a plurality of second screws (29), a plurality of first packing pads (30) are arranged between the first packing pad (27) and the packing pressure pad (28), and the first packing pad (27) and the packing pressure pad (28) are both sleeved on the outer surface of the valve rod (8); the top of the filling pressure pad (28) is fixedly connected with a positioning plate (31), and the positioning plate (31) is connected with the handle (10) through a gasket (32); a rubber sleeve (33) is fixedly arranged on the outer surface of the handle (10); the sealing device comprises a second packing pad (34) and a second packing pad (35), the first isolation plate (13) and the second isolation plate (19) penetrate through the two second packing pads (34), the second packing pads (34) are respectively fixedly connected with the first T-shaped groove (12) and the second T-shaped groove (18), and the second packing pad (35) is arranged between the second packing pads (34); stop device includes draw-in groove (36), division board one (13) with two (19) keep away from one side of valve body (1) all is equipped with draw-in groove (36), draw-in groove (36) and fixture block (37) phase-match, the one end and pull rod (38) fixed connection of fixture block (37), pull rod (38) are kept away from the one end of fixture block (37) is run through casing (5) and being located casing (5) the outside, the surface cover of pull rod (38) is equipped with spring plate (39), spring plate (39) all with T type groove one (12) with two (18) fixed connection in T type groove, spring plate (39) with fixed two (40) of spring that are equipped with between casing (5), spring two (40) twine and locate the surface of pull rod (38).
2. A fixed ball valve of the double isolation and bleed type according to claim 1, wherein said connecting means comprises a ferrule (41), said ferrule (41) is fixedly connected to a side of said housing (5) close to said valve body (1), an outer surface of said ferrule (41) is fixedly connected to a sealing ring (42), an annular groove (43) is provided to a side of said valve body (1) close to said housing (5), said annular groove (43) is matched to said sealing ring (42).
3. A fixed ball valve of double isolation and bleed according to claim 1, characterized in that the positioning device comprises a positioning pin (44) and a positioning pin sleeve (45), the bottom of the ball body (6) is movably provided with the positioning pin (44), the outer surface of the positioning pin (44) is sleeved with the positioning pin sleeve (45), and the positioning pin sleeve (45) is fixedly connected with the inner bottom end of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178382.1A CN109140012B (en) | 2018-10-10 | 2018-10-10 | Double-isolation releasing fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178382.1A CN109140012B (en) | 2018-10-10 | 2018-10-10 | Double-isolation releasing fixed ball valve |
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| Publication Number | Publication Date |
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| CN109140012A CN109140012A (en) | 2019-01-04 |
| CN109140012B true CN109140012B (en) | 2020-06-09 |
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| CN201811178382.1A Active CN109140012B (en) | 2018-10-10 | 2018-10-10 | Double-isolation releasing fixed ball valve |
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| CN112923081A (en) * | 2021-01-20 | 2021-06-08 | 江苏金卓能技术有限公司 | Remote-controlled communication pipeline plug device |
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| CN2692453Y (en) * | 2004-03-05 | 2005-04-13 | 淄博佳安电子有限公司 | Fuel gas leakage automatic valve control device |
| US8047228B2 (en) * | 2005-02-23 | 2011-11-01 | Exxonmobil Chemical Patents Inc. | Metering system and use thereof |
| CN2931968Y (en) * | 2006-07-07 | 2007-08-08 | 李洪桥 | Ball valve type waterdrainage switch of diesel engine |
| EP2195566B1 (en) * | 2007-08-23 | 2012-01-25 | Norgren Limited | Ball valve isolator |
| CN201133474Y (en) * | 2007-12-25 | 2008-10-15 | 中国航天科技集团公司第六研究院第十一研究所 | Heavy pressure super low temperature manual stop valve |
| KR20090117450A (en) * | 2008-05-09 | 2009-11-12 | (주)에쎈테크 | Ball valve for insulation |
| CN204083416U (en) * | 2014-06-16 | 2015-01-07 | 杭州湘君电子有限公司 | A kind of solenoid valve copper aluminium collapsible tube joint |
| CN205331437U (en) * | 2015-12-15 | 2016-06-22 | 黄河 | Pneumatic stop valve |
| CN205592417U (en) * | 2016-03-31 | 2016-09-21 | 浙江科能阀门有限公司 | Two ball soft seals ball valve that floats |
| CN205937951U (en) * | 2016-08-24 | 2017-02-08 | 吴忠仪表有限责任公司 | Two isolation fixed ball valve under water of releasing |
| CN108480118A (en) * | 2018-05-31 | 2018-09-04 | 钱盛 | A kind of construction material uses steel spray-painting plant |
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Denomination of invention: A double isolation discharge fixed ball valve Effective date of registration: 20220129 Granted publication date: 20200609 Pledgee: Bank of Nanjing Co.,Ltd. Yancheng branch Pledgor: TEFA JIANGSU LIUTI FLUID MACHINERY MANUFACTURING CO.,LTD. Registration number: Y2022980001327 |