CN112128441A - High-pressure gas quick valve - Google Patents
High-pressure gas quick valve Download PDFInfo
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- CN112128441A CN112128441A CN202011341710.2A CN202011341710A CN112128441A CN 112128441 A CN112128441 A CN 112128441A CN 202011341710 A CN202011341710 A CN 202011341710A CN 112128441 A CN112128441 A CN 112128441A
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- valve
- shaped ring
- quick
- pressure gas
- ring retainer
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- 238000007789 sealing Methods 0.000 claims abstract description 54
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000003584 silencer Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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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
- F16K25/00—Details relating to contact between valve members and seats
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/56—Mechanical actuating means without stable intermediate position, e.g. with snap action
- F16K31/563—Mechanical actuating means without stable intermediate position, e.g. with snap action for rotating or pivoting 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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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
- F16K5/0689—Packings between housing and 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
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a high-pressure gas quick valve, which comprises a valve body, a valve cover, a ball body, a valve seat and a valve rod, wherein the ball body is fixedly connected by fixing shafts at the upper side and the lower side, and has the advantages of low torque and accurate positioning of the position of the ball body relative to a floating ball valve structure Convenient maintenance, quick opening and closing, low flow resistance, low torque, reliable sealing and the like.
Description
Technical Field
The invention relates to the field of program control valves of high-pressure gas supply systems, in particular to a high-pressure gas quick valve.
Background
Because the valve is opened and close fast, the abominable operating mode of high frequency high pressure gas medium leads to valve relative motion, removal position wearing and tearing aggravation, including current valve chooses the ball structure of floating for use, moment is great, and pneumatic actuator accounts for than the space big, has shortened the life of valve greatly, has increased the maintenance number of times, makes the whole running cost of wind-tunnel increase.
Referring to fig. 6, the original quick valve adopts a rack and pinion type pneumatic actuator 178, the space of a moving body cavity is large, more gas is used, the operation cost is high, the output torque of the rack and pinion type structure is constant, and the requirement of the quick valve on-off characteristic of variable torque is not facilitated.
Disclosure of Invention
The present invention is directed to a high pressure gas fast valve to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a high-pressure gas fast valve, includes valve body, valve gap, spheroid, disk seat and valve rod, valve body one side is provided with the valve gap, be provided with spheroid and valve rod in the valve body, the valve body top is provided with the flange, and the valve body bottom is provided with down the valve shaft, and lower valve shaft top is rotated with the spheroid and is connected, the valve rod rotates with the valve body to be connected, valve rod bottom and spheroid fixed connection, and the spheroid both ends all are provided with the disk seat and cooperate with the disk seat and form sealed vice, the flange top is provided with drives valve rod pivoted quick pneumatic actuator subassembly.
The top of the lower valve shaft is rotatably connected with the ball through a first bearing embedded at the bottom of the ball, the valve rod is rotatably connected with the valve body through a second bearing embedded in the valve body, the first bearing and the second bearing are self-lubricating bearings, and the self-lubricating bearings are austenitic stainless steel self-lubricating bearings and are provided with polytetrafluoroethylene antifriction surfaces.
Two first sealing elements are arranged on the side face of the lower valve shaft, each first sealing element comprises a first O-shaped ring and a first O-shaped ring retainer ring, the first O-shaped ring retainer rings are embedded on the outer side of the lower valve shaft, the first O-shaped rings are arranged in the first O-shaped ring retainer rings, and a sealing gasket is further arranged on the joint plane of the lower valve shaft and the valve body.
The side face of the valve seat is provided with two second sealing elements, each second sealing element comprises a second O-shaped ring and a second O-shaped ring retainer ring, the second O-shaped ring retainer rings are embedded outside the valve seat, the second O-shaped rings are arranged in the second O-shaped ring retainer rings, one end, far away from the ball body, of the valve seat is provided with a cylindrical compression spring, and the joint end face of the valve seat and the ball body is provided with a valve seat sealing ring.
Two third sealing pieces are arranged on the side face of the bottom of the valve rod and comprise a third O-shaped ring and a third O-shaped ring check ring, the third O-shaped ring check ring is embedded on the outer side of the valve rod, and the third O-shaped ring is arranged in the third O-shaped ring check ring.
The valve rod bottom and the spheroid top all are provided with assorted semi-circular cylinder groove, and two semi-circular cylinder inslots are provided with the cylinder locating pin, and valve rod bottom and spheroid pass through cylinder locating pin fixed connection, and the valve rod outside still is provided with the step, and the step is located the junction of flange and valve body and step top and bottom all are provided with thrust washer.
The valve comprises a valve body and a valve cover, and is characterized in that a fourth sealing element and a fifth sealing element are arranged at the joint of the valve body and the valve cover, the fourth sealing element comprises a fourth O-shaped ring and a fourth O-shaped ring retainer ring, the fourth O-shaped ring retainer ring is embedded outside the valve body, the fourth O-shaped ring is arranged in the fourth O-shaped ring retainer ring, the fifth sealing element comprises a fifth O-shaped ring and a fifth O-shaped ring retainer ring, the fifth O-shaped ring retainer ring is embedded on the side surface of the valve cover, and the fifth O-shaped ring is arranged in the fifth O-shaped ring retainer ring.
The quick pneumatic actuator assembly comprises an air filter, a pressure reducing valve, a two-position five-way electromagnetic valve and a quick valve pneumatic actuator, the air filter is sequentially connected with the pressure reducing valve, the two-position five-way electromagnetic valve and the quick valve pneumatic actuator, a pressure gauge is further arranged between the two-position five-way electromagnetic valve and the pressure reducing valve, a silencer is arranged on the two-position five-way electromagnetic valve, and the quick valve pneumatic actuator is a shifting fork type pneumatic actuator with a power-off protection function.
The invention has the beneficial effects that:
1. the ball body is connected and fixed by the fixing shafts at the upper side and the lower side, and has the advantages of low torque and accurate positioning of the ball body position relative to a floating ball valve structure.
2. The valve rod is connected with the ball body through the cylindrical positioning pin, the connection overall strength is high, the gap is small, and the valve rod is suitable for being designed and used under the connection working condition of quick and high-frequency opening and closing.
3. The valve rod and the valve body are matched to rotate the position, the lower valve shaft and the ball body are matched to rotate the position and are all provided with self-lubricating bearings, the bearing material is composed of a polytetrafluoroethylene antifriction surface and an austenitic stainless steel base steel bushing, and the valve rod and the valve body have the advantages of low friction coefficient (less than or equal to 0.05), small installation space (single side thickness of 2.5 mm) and the like.
4. The top end of the valve is provided with a flange, the size of the flange accords with ISO 5211 connection of partial rotary valve driving devices, the flange can be matched with an actuator in size, the connection is convenient, and the application range is wide.
5. The KaNEDE shifting fork type pneumatic actuator is adopted, the actuator is of a single-action FC air opening type, has the characteristic of 'power-off' actuator closing action, and can automatically cut off a high-pressure gas medium between an air source system and the actuator under the condition of system power-off or device failure, so that accidents are prevented.
6. Still be provided with five sealing members in the quick-operation valve and be first sealing member, second sealing member, third sealing member, fourth sealing member and fifth sealing member respectively, improved the whole leakproofness of quick-operation valve greatly.
In conclusion, the invention has the characteristics of reasonable structural design, convenient maintenance, quick opening and closing, low flow resistance, low torque, reliable sealing and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the pneumatic control of the quick valve pneumatic actuator assembly of the present invention;
FIG. 3 is a schematic diagram of the construction of the quick valve pneumatic actuator assembly of the present invention;
FIG. 4 is a schematic diagram of the operation of the quick valve pneumatic actuator assembly of the present invention when not vented;
FIG. 5 is a schematic diagram of the operation of the quick valve pneumatic actuator assembly of the present invention during venting;
fig. 6 is a structural schematic diagram of a rack and pinion pneumatic actuator in the prior art.
In the drawing, 1-lower valve shaft, 2-sealing gasket, 3-first O-shaped ring, 4-first O-shaped ring retainer, 5-first bearing, 6-valve body, 7-valve seat, 8-second O-shaped ring, 9-second O-shaped ring retainer, 10-cylindrical compression spring, 11-valve seat sealing ring, 12-cylindrical positioning pin, 13-valve rod, 14-second bearing, 15-third O-shaped ring, 16-third O-shaped ring retainer, 17-quick pneumatic actuator assembly, 18-flange, 19-bolt, 20-first screw, 21-thrust gasket, 22-fixed pin shaft, 23-fourth O-shaped ring, 24-fourth O-shaped ring retainer, 25-valve cover, 26-ball body, 27-fifth O-shaped ring retainer, 25-valve cover, 26-ball body, 28-a fifth O-shaped ring retainer ring, 29-a full-thread stud, 30-a nut and 31-a second screw;
171-a pressure air inlet source, 172-an air filter, 173-a pressure reducing valve, 174-a pressure gauge, 175-a silencer, 176-a two-position five-way electromagnetic valve, 177-a quick valve pneumatic actuator and 178-a rack and pinion pneumatic actuator.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
Referring to fig. 1 to 5, the embodiment of the invention provides a high-pressure gas quick valve, which is suitable for being used in a wind tunnel gas supply quick opening and closing occasion, and has the characteristics of quick opening and closing (less than or equal to 2S), low flow resistance, low torque and the like.
The high-pressure gas quick valve comprises a valve body 6, a valve cover 25, a ball body 26, a valve seat 7 and a valve rod 13, wherein the valve cover 25 is arranged on the right side of the valve body 6, the valve cover 25 is fixedly connected with the valve body 6 through a full-thread stud 29 and a nut 30, the valve body 6 is a two-piece valve body, and after the valve body 6 is connected with the valve cover 25, the leakage points are few, and the installation space is small;
be provided with spheroid 26 and valve rod 13 in the valve body 6, valve body 6 top is provided with flange 18, flange 18 passes through first screw 20 and valve body 6 fixed connection, still be provided with fixed pin axle 22 between flange 18 and the valve body 6, the valve rod 13 outside is provided with the step (valve rod 13 and step integrated into one piece), the step is located the junction of flange 18 and valve body 6 and step top and bottom all are provided with thrust gasket 21 to this forms the anti-flying structure of valve rod 13, flange 18 size accords with ISO 5211 "partial rotary valve drive connection", can carry out the size with quick-operation valve pneumatic actuator 177 and lead to the marriage, and it is convenient to connect, and application scope is wide.
The ball 26 is provided with a valve seat 7 at both ends and forms a sealing pair in cooperation with the valve seat 7.
The bottom of the valve body 6 is provided with a lower valve shaft 1, the lower valve shaft 1 is fixedly connected with the valve body 6 through a second screw 31, the top of the lower valve shaft 1 is rotatably connected with the ball 26 through a first bearing 5 embedded at the bottom of the ball 26, the lower side of the ball 26 is provided with a cylindrical hole, an inner hole of the cylindrical hole is matched with the excircle of the first bearing 5, the inner hole of the first bearing 5 is matched with the excircle of the lower valve shaft 1, the lower valve shaft 1 mainly plays a role in supporting the weight of the ball 26 and limiting the lower side of the ball 26, the valve rod 13 is rotatably connected with the valve body 6 through a second bearing 14 embedded in the valve body 6, namely, the second bearing 14 is positioned between the excircle of the valve rod 13 and an installation inner hole of the valve rod 13 communicated with the upper part of the valve body 6, the first bearing 5 and the second bearing 14 are self-lubricating bearings, the self-lubricating bearing is an austenitic stainless steel self-lubricating bearing and is provided with a polytetrafluoroethylene antifriction surface, has the advantages of low friction coefficient (less than or equal to 0.05), small installation space (single side thickness is 2.5 mm) and the like.
Valve rod 13 bottom and spheroid 26 top all are provided with assorted semicircular cylinder groove, two semicircular cylinder inslots are provided with cylinder locating pin 12 (spheroid 26 upside is equipped with the cylinder hole, the cylinder excircle of valve rod 13 downside cooperatees with spheroid 26 upside cylinder hole, be used for installing cylinder locating pin 12), valve rod 13 bottom and spheroid 26 pass through cylinder locating pin 12 fixed connection, form fixed mechanical connection between the three of cylinder locating pin 12 and spheroid 26 top hole, moment transmission is for matched with cylinder locating pin 12 after valve rod 13 rotates, because cylinder locating pin 12 is in the semicircular cylinder inslot between valve rod 13 and spheroid 26, consequently, drive spheroid 26 and rotate, accomplish the opening of spheroid, close the action, adopt cylinder locating pin 12 to connect valve rod 13 and spheroid 26, connect the bulk strength height, the clearance is little, be applicable to fast, The high-frequency opening and closing connection working condition is designed and used.
The ball body 26 is fixedly connected by fixing shafts at the upper and lower sides, and has the advantages of low torque and accurate positioning of the ball body position relative to a floating ball valve structure;
the top of flange 18 is provided with the quick pneumatic actuator subassembly 17 of drive valve rod 13 pivoted, and quick pneumatic actuator subassembly 17 passes through bolt 19 and flange 18 fixed connection, refer to fig. 1, and quick pneumatic actuator subassembly 17's hole adopts mechanical type spacing connection (fixed connection) with valve rod 13 top excircle, and when the action began, the hole rotation of quick pneumatic actuator subassembly 17 drove valve rod 13 and rotates, and valve rod 13 drives spheroid 26 and rotates the start-stop motion that forms the valve.
Referring to fig. 2, the fast pneumatic actuator assembly 17 includes an air filter 172, a pressure reducing valve 173, a two-position five-way solenoid valve 176 and a fast valve pneumatic actuator 177, the air filter 172 is sequentially connected to the pressure reducing valve 173, the two-position five-way solenoid valve 176 and the fast valve pneumatic actuator 177, a pressure gauge 174 is further disposed between the two-position five-way solenoid valve 176 and the pressure reducing valve 173, a silencer 175 is disposed on the two-position five-way solenoid valve 176, and a pressure air inlet source 171 enters the fast pneumatic actuator assembly 17 from one side of the air filter 172.
Referring to fig. 3-5, fig. 4 and 5 are schematic diagrams of a single-acting FC pneumatic open type valve switch of a quick valve pneumatic actuator 177, the quick valve adopts a KANEDE shift fork type pneumatic actuator (quick valve pneumatic actuator 177), the actuator adopts a single-acting FC pneumatic open type valve, the characteristic of closing action of the 'power-off' actuator is provided, and a high-pressure gas medium between an air source system and the quick valve can be automatically cut off under the condition of system power-off or device failure, so that accidents are prevented; and the shifting fork type pneumatic actuator has the advantages of small moving body cavity space, low operation cost and the like.
The quick valve working and accident valve position switches are shown in the following table:
| system components | Working state | First incident State | Second accident state |
| Air supply | Is normal | Is normal | Is lost |
| State of solenoid valve | Get electricity | Power loss | Fail to work |
| Valve state | Is opened | Close off | Close off |
Five sealing elements, namely a first sealing element, a second sealing element, a third sealing element, a fourth sealing element and a fifth sealing element, are further arranged in the quick valve, so that the overall sealing performance of the quick valve is greatly improved, and the positions of the five sealing elements are shown as follows (refer to fig. 1).
Two first sealing elements are arranged on the side face of the lower valve shaft 1, each first sealing element comprises a first O-shaped ring 3 and a first O-shaped ring retainer ring 4, the first O-shaped ring retainer rings 4 are embedded on the outer side of the lower valve shaft 1, the first O-shaped rings 3 are arranged in the first O-shaped ring retainer rings 4, and a sealing gasket 2 is further arranged on the joint plane of the lower valve shaft 1 and the valve body 6.
The side face of the valve seat 7 is provided with two second sealing elements, each second sealing element comprises a second O-shaped ring 8 and a second O-shaped ring retainer ring 9, the second O-shaped ring retainer ring 9 is embedded outside the valve seat 7, the second O-shaped ring 8 is arranged in the second O-shaped ring retainer ring 9, one end, far away from the ball 26, of the valve seat 7 is provided with a cylindrical compression spring 10, and the joint end face of the valve seat 7 and the ball 26 is provided with a valve seat sealing ring 11.
Two third sealing elements are arranged on the side face of the bottom of the valve rod 13, each third sealing element comprises a third O-shaped ring 15 and a third O-shaped ring retainer ring 16, the third O-shaped ring retainer rings 16 are embedded on the outer side of the valve rod 13, and the third O-shaped rings 15 are arranged in the third O-shaped ring retainer rings 16.
A fourth sealing element and a fifth sealing element are arranged at the joint of the valve body 6 and the valve cover 25, the fourth sealing element comprises a fourth O-shaped ring 23 and a fourth O-shaped ring retainer ring 24, the fourth O-shaped ring retainer ring 24 is embedded on the outer side of the valve body 6, the fourth O-shaped ring 23 is arranged in the fourth O-shaped ring retainer ring 24, the fifth sealing element comprises a fifth O-shaped ring 27 and a fifth O-shaped ring retainer ring 28, the fifth O-shaped ring retainer ring 28 is embedded on the side surface of the valve cover 25, and the fifth O-shaped ring 27 is arranged in the fifth O-shaped ring retainer ring 28.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a high-pressure gas fast valve, includes valve body (6), valve gap (25), spheroid (26), disk seat (7) and valve rod (13), its characterized in that: valve body (6) one side is provided with valve gap (25), be provided with spheroid (26) and valve rod (13) in valve body (6), valve body (6) top is provided with flange (18), and valve body (6) bottom is provided with down valve shaft (1), and lower valve shaft (1) top is rotated with spheroid (26) and is connected, valve rod (13) are rotated with valve body (6) and are connected, valve rod (13) bottom and spheroid (26) fixed connection, and spheroid (26) both ends all are provided with disk seat (7) and cooperate with disk seat (7) and form sealed vice, flange (18) top is provided with drive valve rod (13) pivoted quick pneumatic actuator subassembly (17).
2. A high pressure gas quick valve according to claim 1, wherein: the top of the lower valve shaft (1) is rotatably connected with the ball body (26) through a first bearing (5) embedded at the bottom of the ball body (26), the valve rod (13) is rotatably connected with the valve body (6) through a second bearing (14) embedded in the valve body (6), the first bearing (5) and the second bearing (14) are self-lubricating bearings, and the self-lubricating bearings are austenitic stainless steel self-lubricating bearings and are provided with polytetrafluoroethylene antifriction surfaces.
3. A high pressure gas quick valve according to claim 1, wherein: two first sealing elements are arranged on the side face of the lower valve shaft (1), each first sealing element comprises a first O-shaped ring (3) and a first O-shaped ring retainer ring (4), the first O-shaped ring retainer rings (4) are embedded on the outer side of the lower valve shaft (1), the first O-shaped rings (3) are arranged in the first O-shaped ring retainer rings (4), and a sealing gasket (2) is further arranged on the joint plane of the lower valve shaft (1) and the valve body (6).
4. A high pressure gas quick valve according to claim 1, wherein: two second sealing parts are arranged on the side face of the valve seat (7), each second sealing part comprises a second O-shaped ring (8) and a second O-shaped ring retainer ring (9), the second O-shaped ring retainer ring (9) is embedded on the outer side of the valve seat (7), the second O-shaped ring (8) is arranged in the second O-shaped ring retainer ring (9), a cylindrical compression spring (10) is arranged at one end, far away from the ball body (26), of the valve seat (7), and a valve seat sealing ring (11) is arranged on the joint end face of the valve seat (7) and the ball body (26).
5. A high pressure gas quick valve according to claim 1, wherein: two third sealing elements are arranged on the side face of the bottom of the valve rod (13), each third sealing element comprises a third O-shaped ring (15) and a third O-shaped ring retainer ring (16), the third O-shaped ring retainer ring (16) is embedded on the outer side of the valve rod (13), and the third O-shaped ring (15) is arranged in the third O-shaped ring retainer ring (16).
6. A high pressure gas quick valve according to claim 1, wherein: the bottom end of the valve rod (13) and the top of the ball body (26) are provided with matched semicircular cylindrical grooves, cylindrical positioning pins (12) are arranged in the two semicircular cylindrical grooves, the bottom end of the valve rod (13) and the ball body (26) are fixedly connected through the cylindrical positioning pins (12), the outer side of the valve rod (13) is further provided with steps, the steps are located at the joint of the flange (18) and the valve body (6), and thrust washers (21) are arranged at the tops and the bottoms of the steps.
7. A high pressure gas quick valve according to claim 1, wherein: the valve is characterized in that a fourth sealing element and a fifth sealing element are arranged at the joint of the valve body (6) and the valve cover (25), the fourth sealing element comprises a fourth O-shaped ring (23) and a fourth O-shaped ring retainer ring (24), the fourth O-shaped ring retainer ring (24) is embedded on the outer side of the valve body (6), the fourth O-shaped ring (23) is arranged in the fourth O-shaped ring retainer ring (24), the fifth sealing element comprises a fifth O-shaped ring (27) and a fifth O-shaped ring retainer ring (28), the fifth O-shaped ring retainer ring (28) is embedded on the side surface of the valve cover (25), and the fifth O-shaped ring (27) is arranged in the fifth O-shaped ring retainer ring (28).
8. A high pressure gas quick valve according to claim 1, wherein: quick pneumatic actuator subassembly (17) include air cleaner (172), relief pressure valve (173), two-position five-way solenoid valve (176) and quick valve pneumatic actuator (177), air cleaner (172) connect gradually relief pressure valve (173), two-position five-way solenoid valve (176) and quick valve pneumatic actuator (177), still be provided with manometer (174) between two-position five-way solenoid valve (176) and relief pressure valve (173), be provided with muffler (175) on two-position five-way solenoid valve (176), quick valve pneumatic actuator (177) is for having the shifting fork formula pneumatic actuator of power failure protection function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341710.2A CN112128441A (en) | 2020-11-26 | 2020-11-26 | High-pressure gas quick valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341710.2A CN112128441A (en) | 2020-11-26 | 2020-11-26 | High-pressure gas quick valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112128441A true CN112128441A (en) | 2020-12-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869619A (en) * | 2024-03-12 | 2024-04-12 | 成都成高阀门股份有限公司 | Ball valve with novel valve rod coupling mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117869619A (en) * | 2024-03-12 | 2024-04-12 | 成都成高阀门股份有限公司 | Ball valve with novel valve rod coupling mechanism |
| CN117869619B (en) * | 2024-03-12 | 2024-05-17 | 成都成高阀门股份有限公司 | Ball valve with novel valve rod coupling mechanism |
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