CN220337519U - Large-drift-diameter air release valve - Google Patents
Large-drift-diameter air release valve Download PDFInfo
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- CN220337519U CN220337519U CN202321879176.XU CN202321879176U CN220337519U CN 220337519 U CN220337519 U CN 220337519U CN 202321879176 U CN202321879176 U CN 202321879176U CN 220337519 U CN220337519 U CN 220337519U
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- connecting rod
- piston
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 210000001503 joint Anatomy 0.000 claims abstract description 19
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 238000005256 carbonitriding Methods 0.000 claims description 7
- 229910000816 inconels 718 Inorganic materials 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 10
- 229910052804 chromium Inorganic materials 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 238000004881 precipitation hardening Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a large-drift-diameter air release valve, which comprises a spring barrel, an intermediate joint, a main body and a lower joint which are connected in sequence; a cavity is formed in the spring cylinder, the middle joint, the main body and the lower joint; a piston rod which moves linearly and reciprocally along the cavity is arranged in the cavity, and a sealing element is arranged on the piston rod and moves along with the movement of the piston rod; one end of the piston rod is connected with the lower plate in the second open cavity, and the other end of the piston rod is connected with the piston connecting rod in the first open cavity; the novel ball valve is characterized in that an overflow hole communicated with the second open cavity is formed in the main body, a ball valve is arranged in the overflow hole, a control rod, a first outlet and a second outlet are arranged on the ball valve, a connecting rod mechanism is arranged between the control rod and the lower plate, and the piston rod motion control connecting rod mechanism drives the ball valve to rotate. The utility model controls the ball valve to rotate through the connecting rod mechanism, thereby controlling the opening and closing effects of the air release valve, and being not influenced by temperature and pressure.
Description
Technical Field
The utility model relates to the technical field of oil extraction equipment, in particular to a large-drift-diameter air release valve.
Background
The temperature resistance limit of the existing domestic and foreign air release valve is below 200 ℃ and the conventional air release valve is a conventional direct-pushing type air release valve, a piston cavity is used for pressing a piston rod to move downwards to open a valve plate, and because the annular pressure at the lower part of a packer is higher after steam is injected into an offshore thick oil well, the air release valve has the possibility that the valve plate cannot be opened or is half opened when the underground pressure is higher, and the thermal recovery of an offshore thick oil block still belongs to a blank stage, so the thermal recovery safety and reliability are poor, the steam with the temperature of 350-400 ℃ is usually required to be injected into the underground when the yield of the thick oil block is improved, and the normal air release function of the air release valve cannot be ensured.
Disclosure of Invention
In order to overcome at least one defect in the prior art, the utility model provides the large-drift-diameter air release valve, which avoids the use of a high-temperature production sliding sleeve, adopts a connecting rod mechanism to control the opening and closing of a ball valve, and greatly reduces the influence of pressure and high temperature on the air release of the air release valve.
The utility model adopts the technical proposal for solving the problems that: a large-drift-diameter air release valve comprises a spring barrel, an intermediate joint, a main body and a lower joint which are connected in sequence; a cavity is formed in the spring cylinder, the middle joint, the main body and the lower joint; the cavity is internally provided with a piston rod which moves in a straight reciprocating manner along the cavity, the piston rod is provided with a sealing element, and the sealing element moves along with the movement of the piston rod and is used for dividing the cavity into a first open cavity and a second open cavity; one end of the piston rod is connected with the lower plate in the second open cavity, and the other end of the piston rod is connected with the piston connecting rod in the first open cavity; the main body is provided with an overflow hole communicated with the second open cavity, a ball valve is arranged in the overflow hole, a control rod, a first outlet and a second outlet are arranged on the ball valve, a connecting rod mechanism is arranged between the control rod and the lower plate, and the piston rod motion controls the connecting rod mechanism to drive the ball valve to rotate; when the ball valve rotates to the state that the first outlet is communicated with the overflow hole, the second outlet is communicated with the outlet of the lower joint, and the ball valve is in an open state; when the ball valve rotates until the first outlet is communicated with the second open cavity, the second outlet is communicated with the overflow hole, and the ball valve is in a closed state.
By adopting the scheme, the ball valve is controlled to rotate through the connecting rod mechanism, so that the opening and closing effects of the air release valve are controlled, and the air release valve is not influenced by temperature and pressure.
Further, a C-ring retaining cap, a C-shaped ring spacing ring and a C-ring are arranged in the sealing piece, the C-ring is positioned between the C-ring retaining cap and the C-shaped ring spacing ring, and when the piston rod slides, the sealing piece is always in sealing connection with the piston rod.
By adopting the scheme, the sealing effect of the first open cavity can be improved.
Further, the link mechanism includes: one end of the connecting plate is clamped with the control rod; one end of the connecting rod is rotationally connected with the other end of the connecting plate; one end of the supporting rod is connected with the lower plate, and the other end of the supporting rod is connected with the other end of the connecting rod; and the support spring is positioned in the second open cavity and is used for keeping the ball valve in abutting connection with the lower joint.
Through adopting above-mentioned scheme, can turn into the rotatory centripetal force of drive ball valve with push-and-pull force through link mechanism to control the ball valve and realize the switching effect.
Further, the control lever includes integrally connected: a rod-shaped body rotatably connected to the body side wall; the first rectangular clamping block is used for being in limiting clamping connection with the connecting plate, and the connecting plate and the connecting rod are not collinear all the time and are used for driving the connecting plate to rotate through the connecting rod, so that the first rectangular clamping block is driven to rotate; the second rectangular clamping block is used for being clamped into the ball valve and used for driving the ball valve to rotate by taking the rod-shaped body as an axis.
Through adopting above-mentioned scheme, through control lever self structure, be favorable to driving ball valve rotation.
Further, the surfaces of the piston connecting rod and the piston rod are sleeved with a power spring, one end of the power spring is connected with the sealing piece, and the other end of the power spring is clamped with the righting sleeve at the end part of the piston connecting rod.
Through adopting above-mentioned scheme, through setting up the power pressure spring and exerting resilience's force for the piston and guarantee that the piston can be pulled back initial condition under the condition of no pressure in the spring section of thick bamboo, guarantee that the bleed valve can realize closing action.
Further, a positioning cap is arranged on the centralizing sleeve and used for fixing the centralizing sleeve on the piston connecting rod.
By adopting the scheme, the positioning cap can always keep the centralizing sleeve clamped with the piston connecting rod when the power pressure spring compresses or rebounds.
Further, the surfaces of the C ring and the piston rod are provided with chromium plating layers.
By adopting the scheme, the hard chromium plating process is adopted to plate a thicker chromium plating layer on the surfaces of the C ring and the piston rod, so that the hardness, wear resistance, temperature resistance, corrosion resistance and the like of the C ring and the piston rod can be improved.
Further, the spring cylinder, the middle joint, the main body and the lower joint are in threaded connection, and carbonitriding layers are arranged on threaded connection surfaces among the spring cylinder, the middle joint, the main body and the lower joint.
Through adopting above-mentioned scheme, through adopting carbonitriding technology to handle the threaded connection face between spring section of thick bamboo, intermediate head, main part and the lower clutch to form carbonitriding layer, can improve wear resistance and fatigue resistance of connection face.
Furthermore, the spring cylinder, the middle joint, the main body and the lower joint are all made of INCONEL 718 high-temperature resistant alloy.
By adopting the scheme, the INCONEL 718 high-temperature resistant alloy is a precipitation hardening type nickel-chromium-iron alloy containing niobium and molybdenum, has high strength at 700 ℃, good toughness and corrosion resistance in high and low temperature environments.
Further, the connecting rod is connected with the supporting rod through an M4 bolt.
By adopting the scheme, the connection stability can be improved.
In summary, the large-path air release valve provided by the utility model has the following technical effects:
1. by arranging the connecting rod mechanism and the ball valve, the air release valve adopts a ball valve rotation mode to exhaust, so that compared with a traditional piston cover opening mode air exhaust structure, the underground pressure does not need to be considered, the high-temperature deep well condition can be met, and the condition that the high pressure in a petroleum well cannot be opened can not occur;
2. by arranging the sealing piece, the piston rod in the air release valve can realize sliding sealing;
3. the exhaust valve omits a high-temperature production sliding sleeve, and the exhaust valve comprises the functions of all high-temperature production sliding sleeves;
4. through setting up INCONEL 718 high temperature resistant alloy material, improve the high temperature resistant effect of bleed valve, satisfy the condition of viscous crude 400 ℃ in the pit.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 3 is a schematic view of a linkage mechanism according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a piston rod connection structure according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a piston rod connection exploded structure according to an embodiment of the present utility model;
fig. 6 is an exploded view of a link mechanism according to an embodiment of the present utility model.
Wherein the reference numerals have the following meanings: 1. a main body; 111. a circular rotary table; 112. an overflow hole; 2. a lower joint; 3. an intermediate joint; 4. a spring cylinder; 5. a ball valve; 51. a first outlet; 52. a second outlet; 6. a connecting plate; 7. a connecting rod; 8. a support ring; 9. a lower plate; 91. a clasp; 10. a control lever; 101. a rod-shaped body; 102. the first rectangular clamping block; 103. the second rectangular clamping block; 11. a support rod; 12. a piston rod; 13. a seal; 141. a first open cavity; 142. a second open cavity; 15. c-shaped ring spacing rings; 16. c ring keeps off the cap; 17. a piston connecting rod; 18. centralizing sleeve; 19. positioning caps; 20. m4 bolts; 21. a support spring; 22. a C ring; 23. and a power spring.
Detailed Description
For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described and discussed below in conjunction with the accompanying drawings, and it is apparent that what is described herein is only a part, but not all, of the examples of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
For the purpose of facilitating an understanding of the embodiments of the present utility model, reference will now be made to the drawings, by way of example, of specific embodiments, and the various embodiments should not be construed to limit the embodiments of the utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
The utility model discloses a large-drift-diameter air release valve, which is shown in figures 1-6, and comprises a spring cylinder 4, an intermediate joint 3, a main body 1 and a lower joint 2 which are connected in sequence; the spring cylinder 4, the middle joint 3, the main body 1 and the lower joint 2 are internally provided with cavities; the spring tube 4, the middle joint 3, the main body 1 and the lower joint 2 are in threaded connection, and carbonitriding layers are arranged on threaded connection surfaces among the spring tube 4, the middle joint 3, the main body 1 and the lower joint 2, and the carbonitriding layers are formed by adopting a carbonitriding process to treat the threaded connection surfaces among the spring tube 4, the middle joint 3, the main body 1 and the lower joint 2, so that the wear resistance and fatigue resistance of the connection surfaces can be improved. In other embodiments, the connection manner among the spring tube 4, the middle joint 3, the main body 1 and the lower joint 2 includes, but is not limited to, a clamping connection or a buckling connection, and the embodiment is not particularly limited.
The piston rod 12 which moves linearly and reciprocally along the cavity is arranged in the cavity, the sealing element 13 is arranged on the piston rod 12, the C-ring retaining cap 16, the C-ring spacing ring 15 and the C-ring 22 are arranged in the sealing element 13, the C-ring 22 is positioned between the C-ring retaining cap 16 and the C-ring spacing ring 15, and the sealing element 13 is always in sealing connection with the piston rod 12 when the piston rod 12 slides. The sealing element 13 moves along with the movement of the piston rod 12 and is used for dividing the cavity into a first open cavity 141 and a second open cavity 142, one end of the piston rod 12 is connected with the lower plate 9 in the second open cavity 142, and the other end is connected with the piston connecting rod 17 in the first open cavity 141; the movable range of the piston rod 12 is limited by the sealing member 13 and the lower plate 9, when the piston rod 12 slides to the maximum extent in the direction of the spring cylinder 4, the lower plate 9 is abutted against one end of the middle joint 3, and when the piston rod 12 slides to the maximum extent in the direction of the main body 1, the sealing member 13 is abutted against the other end of the middle joint 3.
The piston connecting rod 17 and the piston rod 12 are sleeved with a power spring 23, one end of the power spring 23 is connected with the sealing element 13, the other end of the power spring is clamped with a centralizing sleeve 18 at the end part of the piston connecting rod 17, and the piston can be pulled back to an initial state under the condition that no pressure exists in the spring cylinder 4 by arranging a power pressure spring to apply rebound force to the piston, so that the air release valve can be closed. The centering sleeve 18 is provided with a positioning cap 19 for fixing the centering sleeve 18 on the piston connecting rod 17, and the positioning cap 19 can enable the centering sleeve 18 to be always clamped with the piston connecting rod 17 when the power compression spring is compressed or rebounded.
The main body 1 is provided with an overflow hole 112 communicated with a second open cavity 142, a ball valve 5 is arranged in the overflow hole 112, a control rod 10, a first outlet 51 and a second outlet 52 are arranged on the ball valve 5, a connecting rod mechanism is arranged between the control rod 10 and the lower plate 9, and the piston rod 12 moves to control the connecting rod mechanism to drive the ball valve 5 to rotate; when the ball valve 5 rotates until the first outlet 51 is communicated with the overflow hole 112, the second outlet 52 is communicated with the outlet of the lower joint 2, and the ball valve 5 is in an open state; when the ball valve 5 rotates until the first outlet 51 is communicated with the second open cavity 142, the second outlet 52 is communicated with the overflow hole 112, the ball valve 5 is in a closed state, and the ball valve 5 can be controlled to rotate through a link mechanism, so that the opening and closing effects of the air release valve are controlled, and the air release valve is not influenced by temperature and pressure.
Specifically, the link mechanism comprises a connecting plate 6, a connecting rod 7, a supporting rod 11 and a supporting spring 21, wherein one end of the connecting plate 6 is clamped with a control rod 10, and the other end of the connecting plate is rotatably connected with one end of the connecting rod 7; one end of the supporting rod 11 is connected with the lower plate 9, and the other end of the supporting rod is connected with the other end of the connecting rod 7; the supporting spring 21 is located in the second open cavity 142, and is used for keeping the ball valve 5 in abutting contact with the lower joint 2, the control rod 10 comprises a rod-shaped body 101, a first rectangular clamping block 102 and a second rectangular clamping block 103 which are integrally connected, and the rod-shaped body 101 is rotatably connected to the side wall of the main body 1; the first rectangular clamping block 102 is used for limiting and clamping with the connecting plate 6, and the connecting plate 6 and the connecting rod 7 are not collinear all the time and are used for driving the connecting plate 6 to rotate through the connecting rod 7 so as to drive the first rectangular clamping block 102 to rotate; the second rectangular clamping block 103 is used for being clamped into the ball valve 5 and used for driving the ball valve 5 to rotate by taking the rod-shaped body 101 as a shaft, and pushing and pulling force can be converted into centripetal force for driving the ball valve 5 to rotate through a connecting rod mechanism, so that the ball valve 5 is controlled to realize a switching effect.
In order to improve the stability of the rotation of the ball valve 5, a support ring 8 may also be provided between the support spring 21 and the ball valve 5, said support ring 8 being connected to the support spring 21 for abutting the ball valve 5.
In embodiment 1, the surface of the lower plate 9 facing the lower joint 2 is provided with a snap ring 91, and the snap ring 91 is connected to one end of the support rod 11, and the connection manner includes, but is not limited to, a clamping connection or a threaded connection. The other end of the supporting rod 11 is provided with a screw hole, both ends of the connecting rod 7 are provided with through holes, the other end of the supporting rod 11 is fixed with the other end of the connecting rod 7 through an M4 bolt 20, one end of the connecting rod 7 is hinged with one end of the connecting plate 6, and the other end of the connecting plate 6 is provided with a rectangular through hole for being clamped with the first rectangular clamping block 102; the side wall of the main body 1 is provided with a circular rotary table 111, and the center of the circular rotary table 111 is provided with a rotary shaft hole for rotationally connecting with the rod-shaped body 101 of the control lever 10.
When the hydraulic oil is used, pressure is injected into the spring cylinder 4 through a hydraulic control pipeline, when the pressure overcomes the elasticity of the power spring 23, the piston connecting rod 17 is pushed to slide towards the piston rod 12, the piston rod 12 pushes the lower plate 9, the supporting rod 11 and the connecting rod 7 to displace, the control of the connecting plate 6 is realized, the control rod 10 is pushed to rotate along the rod-shaped body 101, the ball valve 5 is driven to rotate, when the sealing element 13 on the piston rod 12 is abutted against the middle joint 3, the ball valve 5 stops, at the moment, the first opening of the ball valve 5 is communicated with the overflow hole 112, the second outlet 52 is communicated with the outlet of the lower joint 2, and the ball valve 5 completes the opening of a rotating action channel; when the hydraulic control end of the connecting spring sleeve releases the internal pressure, the power spring 23 in the spring sleeve releases the rebound force, the power spring 23 drives the sealing element 13 to reset and simultaneously drives the piston rod 12, the piston connecting rod 17, the lower plate 9, the connecting rod 7, the connecting plate 6, the supporting rod 11 and the control rod 10 to move until the reset is completed when the lower plate 9 is abutted to the middle joint 3, at the moment, the first opening of the ball valve 5 is communicated with the second open cavity 142, the second opening is communicated with the overflow hole 112, and the ball valve 5 completes the closing of the rotating action channel.
In some embodiments, the surfaces of the C-ring 22 and the piston rod 12 are provided with a chromium coating, and by plating the surface of the C-ring 22 and the piston rod 12 with a thicker chromium coating by adopting a hard chromium plating process, the hardness, wear resistance, temperature resistance, corrosion resistance and the like of the C-ring 22 and the piston rod 12 can be improved.
In some embodiments, the spring tube 4, the middle joint 3, the main body 1 and the lower joint 2 are made of INCONEL 718 high-temperature resistant alloy, wherein the INCONEL 718 high-temperature resistant alloy is a precipitation hardening type nickel-chromium-iron alloy containing niobium and molybdenum, and has high strength, good toughness and corrosion resistance in high-temperature and low-temperature environments at 700 ℃.
In summary, the large-path air release valve provided by the utility model has the following technical effects:
1. by arranging the connecting rod mechanism and the ball valve 5, the air release valve adopts the ball valve 5 to exhaust in a rotating mode, compared with the traditional piston cover-opening type air exhaust structure, the underground pressure does not need to be considered, the high-temperature deep well condition can be met, and the condition that the stone oil well is not opened due to high pressure in the stone oil well can not occur;
2. by arranging the sealing element 13, the piston rod 12 inside the air release valve can realize sliding sealing;
3. the exhaust valve omits a high-temperature production sliding sleeve, and the exhaust valve comprises the functions of all high-temperature production sliding sleeves;
4. through setting up INCONEL 718 high temperature resistant alloy material, improve the high temperature resistant effect of bleed valve, satisfy the condition of viscous crude 400 ℃ in the pit.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (10)
1. The large-drift-diameter air release valve is characterized by comprising a spring cylinder (4), an intermediate joint (3), a main body (1) and a lower joint (2) which are connected in sequence; cavities are formed in the spring cylinder (4), the middle joint (3), the main body (1) and the lower joint (2);
a piston rod (12) which linearly reciprocates along the cavity is arranged in the cavity, a sealing element (13) is arranged on the piston rod (12), and the sealing element (13) moves along with the movement of the piston rod (12) and is used for dividing the cavity into a first open cavity (141) and a second open cavity (142);
one end of the piston rod (12) is connected with the lower plate (9) in the second open cavity (142), and the other end of the piston rod is connected with the piston connecting rod (17) in the first open cavity (141);
the novel ball valve is characterized in that an overflow hole (112) communicated with a second open cavity (142) is formed in the main body (1), a ball valve (5) is arranged in the overflow hole (112), a control rod (10), a first outlet (51) and a second outlet (52) are arranged on the ball valve (5), a connecting rod mechanism is arranged between the control rod (10) and the lower plate (9), and the piston rod (12) moves to control the connecting rod mechanism to drive the ball valve (5) to rotate;
when the ball valve (5) rotates until the first outlet (51) is communicated with the overflow hole (112), the second outlet (52) is communicated with the outlet of the lower joint (2), and the ball valve (5) is in an open state;
when the ball valve (5) rotates until the first outlet (51) is communicated with the second open cavity (142), the second outlet (52) is communicated with the overflow hole (112), and the ball valve (5) is in a closed state.
2. The large-path air release valve according to claim 1, wherein a C-ring blocking cap (16), a C-ring spacer ring (15) and a C-ring (22) are arranged in the sealing member (13), the C-ring (22) is located between the C-ring blocking cap (16) and the C-ring spacer ring (15), and the sealing member (13) is always in sealing connection with the piston rod (12) when the piston rod (12) slides.
3. The large-path bleed valve of claim 1, wherein said linkage comprises:
the connecting plate (6), one end of the connecting plate (6) is clamped with the control rod (10);
one end of the connecting rod (7) is rotationally connected with the other end of the connecting plate (6);
one end of the supporting rod (11) is connected with the lower plate (9), and the other end of the supporting rod is connected with the other end of the connecting rod (7);
-a support spring (21), said support spring (21) being located in a second open cavity (142) for holding the ball valve (5) in abutment with said lower joint (2).
4. A large-path bleed valve according to claim 3, characterized in that the control lever (10) comprises integrally connected:
a rod-shaped body (101), the rod-shaped body (101) being rotatably connected to the side wall of the main body (1);
the first rectangular clamping block (102) is used for being in limit clamping connection with the connecting plate (6), the connecting plate (6) and the connecting rod (7) are not collinear all the time, and the connecting plate (6) is driven to rotate through the connecting rod (7), so that the first rectangular clamping block (102) is driven to rotate;
the second rectangular clamping block (103), the second rectangular clamping block (103) is used for being clamped into the ball valve (5) and used for driving the ball valve (5) to rotate by taking the rod-shaped body (101) as a shaft.
5. The large-path air release valve according to claim 1, wherein the surfaces of the piston connecting rod (17) and the piston rod (12) are sleeved with a power spring (23), one end of the power spring (23) is connected with the sealing piece (13), and the other end of the power spring is clamped with a centralizing sleeve (18) at the end part of the piston connecting rod (17).
6. A large-path bleed valve according to claim 5, characterized in that the righting sleeve (18) is provided with a positioning cap (19) for fixing the righting sleeve (18) to the piston rod (17).
7. A large-path bleed valve according to claim 2, characterized in that the surfaces of the C-ring (22) and the piston rod (12) are provided with a chrome coating.
8. The large-path air release valve according to claim 1, wherein threaded connection is formed among the spring cylinder (4), the middle joint (3), the main body (1) and the lower joint (2), and carbonitriding layers are arranged on threaded connection surfaces among the spring cylinder (4), the middle joint (3), the main body (1) and the lower joint (2).
9. The large-path air release valve according to claim 1, wherein the spring cylinder (4), the middle joint (3), the main body (1) and the lower joint (2) are made of INCONEL 718 high-temperature resistant alloy.
10. A large-path air release valve according to claim 1, characterized in that the connecting rod (7) and the supporting rod (11) are connected by an M4 bolt (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321879176.XU CN220337519U (en) | 2023-07-17 | 2023-07-17 | Large-drift-diameter air release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321879176.XU CN220337519U (en) | 2023-07-17 | 2023-07-17 | Large-drift-diameter air release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220337519U true CN220337519U (en) | 2024-01-12 |
Family
ID=89443554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321879176.XU Active CN220337519U (en) | 2023-07-17 | 2023-07-17 | Large-drift-diameter air release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220337519U (en) |
-
2023
- 2023-07-17 CN CN202321879176.XU patent/CN220337519U/en active Active
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