CN109595376B - A kind of novel self feed back excess pressure cutout device - Google Patents
A kind of novel self feed back excess pressure cutout device Download PDFInfo
- Publication number
- CN109595376B CN109595376B CN201811440493.5A CN201811440493A CN109595376B CN 109595376 B CN109595376 B CN 109595376B CN 201811440493 A CN201811440493 A CN 201811440493A CN 109595376 B CN109595376 B CN 109595376B
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- Prior art keywords
- valve
- spool
- core case
- hole
- piston
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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
- 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
- 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
- F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- 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
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention proposes a kind of novel self feed back excess pressure cutout device, mainly includes valve body, valve deck, piston, spool combination, valve core case and outlet connection.The annular groove and 4 inclined holes processed on the sluice way and valve deck processed in valve body, the discharge pressure of medium is fed back into piston upper surface, when pressure limit, piston generates the thrust for pushing spool combinative movement under the pressure of medium, shear pin is cut, and the air drag below piston, which is discharged with air by the cavity that four boss of the gas vent and valve deck on valve body are formed, to disappear.According to the difference of pressure limit, shear pin may be designed to the pin of unlike material and diameter.Spool end processes annular groove; by the vulcanization of rubber and pass through washer pressing thereon; annular small boss is processed on outlet connection; when spool aggregate motion is to bottom end; rubber on spool is contacted with small boss on outlet connection; the two forms sealing ring, inlet and outlet is cut off, to realize the self-protection of system.
Description
Technical field
The present invention relates to a kind of limiting pressure closing valve, specifically a kind of novel self feed back excess pressure cutout device.
Background technique
The fuel supply of underwater heat power aircraft is squeezed using seawater to be realized for mode.Since pressure is limited to centainly in cabin
In range, for the safety for protecting fuel compartment, it is necessary to use safety guard.When traditional safety valve is opened, generally by seawater
It arranges in cabin, cannot meet the requirements.And overflow valve is under big depth, back pressure is more than to squeeze for pressure, also can not overflow, be unable to satisfy
It is required that so there is an urgent need to design it is a kind of inlet and outlet access can be automatically cut off in pressure limit, and no longer open after severance
It opens, plays the device of protection fuel compartment.And since this device needs to install in heat power aircraft under water, installation is empty
Between it is small, and automatically controlled feedback system is also unable to satisfy requirement since volume is larger.
Summary of the invention
In order to solve the problems existing in the prior art, it is small to meet installation space, and can excess pressure cutout, protect wanting for fuel compartment
It asks, the present invention proposes that a kind of novel self feed back excess pressure cutout device automatically cuts off inlet and outlet access in pressure limit.Normally
When work, inlet and outlet are communicated, and spool combine 10 stationary positioneds by shear pin 8, when pressure limit, media operation pressure passes through
Sluice way 13 and 4 interior annular groove 17 and 4 inclined hole 18 of valve deck lead to 6 upper surface of piston in valve body 1, and piston 6 generates thrust, overcomes
8 shearing force of shear pin, pushes 10 movement of spool combination, and cutting inlet and outlet access is not then turned on, plays the work of protection fuel compartment
With.
The technical solution of the present invention is as follows:
A kind of novel self feed back excess pressure cutout device, it is characterised in that: including valve body, valve deck, piston, valve core case,
Spool combination, outlet connection and inlet union；
The valve body is hollow structure, and sluice way and gas vent are provided on body wall, and sluice way is connected to external work
Make chamber, gas vent is connected to exterior space；Valve body one end and valve deck fixed seal connection, the other end and outlet connection sealing are fixed
It connects, is also integrated with inlet union on valve body, inlet union is connected to outlet connection；The inner face through-hole side of the outlet connection
Edge has an axial circle annular protrusion；
The valve deck is provided with axial step blind hole, and piston seal is mounted in the step blind hole of valve deck, and piston external diameter
Equal to the major diameter of valve deck step blind hole；It is provided with intercommunicating pore on valve deck side wall, by the sluice way and step blind hole in body wall
Bottom connection；Valve deck inner face has circumferentially spaced boss；
The valve core case outer surface is step axle construction, and has radial boss on the outside of step surface, and valve core case also has
Central axial through-hole；Valve core case is mounted in valve body, and valve core case major diameter section and the sealing of valve interior wall face cooperate, valve core case step surface
Radial boss two sides are by valve interior wall face step surface and valve deck inner face boss axial constraint；It is provided in valve core case path section coaxial
Pin hole；
The spool group is combined into stepped cylindrical structure；The path section of spool combination is inserted into the central axial through-hole of valve core case, and
Cooperate with the central axial through-hole wall face sealing of valve core case；It is provided with pin hole in the path section of spool combination, with valve core case path section
Coaxial pin hole cooperation, shear pin is installed；Spool combination major diameter section end face is provided with sealing circuit, and vulcanization is fixed in sealing circuit
There is rubber；When spool combination is contacted with outlet connection, the rubber and outlet connection inner face through-hole edge axis in circuit are sealed
It is in close contact to annular protrusion.
Further preferred embodiment, a kind of novel self feed back excess pressure cutout device, it is characterised in that: in valve deck side wall
On be provided with a ring annular groove, be circumferentially uniformly provided with several drainage inclined holes in a ring groove, by body wall sluice way with
The connection of step blind via bottom.
Further preferred embodiment, a kind of novel self feed back excess pressure cutout device, it is characterised in that: spool combination is big
Diameter section end face center rivets fixing gasket, and the rubber sealed in circuit is pressed in spool combination major diameter section end face by washer.
Beneficial effect
The beneficial effects of the present invention are: the novel self feed back excess pressure cutout device that this programme proposes, passes through reflexive feedback system
Introducing, not only solve the dynamical system high-leveled and difficult requirement small to its shape installation dimension from principle, be reliably achieved water
Self-protection when lower heat power aircraft fuel compartment superpressure ensure that the safety of fuel compartment when aircraft works normally.Also
The caused destructiveness to its dynamical system when ignorance factor occurs is reduced, can be effectively reduced scientific research, production, test rank
The processing maintenance cost of each component of section.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the cross-sectional view of novel self feed back excess pressure cutout device；
Fig. 2 is the bottom view and partial sectional view of Fig. 1；
Fig. 3 is the cross-sectional view of valve deck in Fig. 1；
Fig. 4 is the cross-sectional view of spool in Fig. 1；
Fig. 5 is the cross-sectional view and partial enlarged view of Fig. 2 middle outlet connector.
In figure, 1- valve body, 2- nut, 3- washer, 4- valve deck, 5- valve bonnet seal circle, 6- piston, 7- piston seal, 8-
Shear pin, 9- valve stem packing ring, the combination of 10- spool, 11- valve core case, 12- valve core case sealing ring, 13- sluice way, the outlet 14- connect
Head, 15- gas vent, 16- inlet union, 17- annular groove, 18- drain inclined hole, 19- boss, and 20- seals circuit, 21- convex annular
It rises.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
As shown in Figure 1, the novel self feed back excess pressure cutout device in the present embodiment, including valve body 1, valve deck 4, piston 6, valve
Core print seat 11, spool combination 10, outlet connection 14 and inlet union 16.
The valve body 1 is the hollow structure of approximate tubular, and sluice way 13 and gas vent 15 are provided on body wall, draws
Runner is connected to external working chamber, and gas vent is connected to exterior space；Valve body one end and valve deck fixed seal connection, the other end with go out
Mouth joint sealing is fixedly connected, and inlet union is also integrated on valve body, and inlet union passes through the external screw thread and system pipeline phase of M39
Even, in valve body, inlet union is connected to outlet connection.
The valve deck is inserted in valve body one end, and passes through studs, nuts and washers connection fastening connection, the sealing of O shape
Circle 5 realizes the sealing of valve deck and valve body.Valve deck is provided with axial step blind hole, and piston is mounted in the step blind hole of valve deck, and
Piston external diameter is equal to the major diameter of valve deck step blind hole, and the sealing of piston and valve deck is realized by sealing ring 7.It is opened on valve deck side wall
There is a ring annular groove 17, is circumferentially uniformly opened in a ring groove there are four inclined hole 18 is drained, by the sluice way 13 in body wall
It is connected to step blind via bottom, the medium in working chamber can be drained to the upper surface of piston 6, when pressure medium in working chamber
After certain value, piston can be pushed to be axially moved.Valve deck inner face has circumferentially spaced boss 19, small boss 19 and row
Stomata 15 piston 6 move when from scavenging action, discharge the device inner air to the resistance of piston 6.
11 outer surface of valve core case is step axle construction, and has radial boss on the outside of step surface, and valve core case also has
There is central axial through-hole；Valve core case is mounted in valve body, and valve core case major diameter section is matched with valve interior wall face by the sealing of sealing ring 12
It closes, valve core case step surface radial direction boss two sides are by valve interior wall face step surface and valve deck inner face boss axial constraint, by spool
Seat is fixed in valve body；Coaxial pin hole is provided in valve core case path section.
The spool combination 10 is stepped cylindrical structure；The path section of spool combination is inserted into the central axial through-hole of valve core case,
And cooperated with the central axial through-hole wall face of valve core case by the sealing of O-ring seals 9.Pin is provided in the path section of spool combination
Hole cooperates with the coaxial pin hole of valve core case path section, is equipped with shear pin 8；Spool combination major diameter section end face is provided with sealing circuit
20, vulcanization is fixed with rubber in sealing circuit, and spool combination major diameter section end face center also rivets fixing gasket, and washer is by sealing ring
Rubber in road is pressed in spool combination major diameter section end face, and washer outer diameter is no more than the internal through-flow diameter of the minimum of outlet connection 14.
Outlet connection 14 is also step-like hollow cylindrical, and center is stepped hole, the inner face through-hole edge of outlet connection
There is an axial circle annular protrusion 21, the internal diameter of annular protrusion 21 is greater than the washer outer diameter in spool combination 10, and outer diameter is less than valve
20 outer diameter of sealing circuit in core combination 10 seals the rubber in circuit and outlet when spool combination is contacted with outlet connection
Through-hole edge axial annular protrusion in inner end of the joint face is in close contact.14 bottom of outlet connection is insertion sealed, passes through M39's
Screw thread and piping connection.Outlet connection 14 is connected with valve body 1 by studs, nuts and washers.
Shear pin 8 is certain type copper wire, combines and plays the role of positioning to spool together with valve core case 11, by seawater pressure to work
Plug and the difference in areas of valve rod and the calculating of the thrust and movement components frictional force for combine 10 to spool generated, it is reasonable to design
Brass wire diameter design several groups and copper wire similar in its diameter then based on this, pass through simulation loading verification experimental verification, obtain
Required shear pin under pressure high limit.
It since the device volume is small, light-weight, can directly be fixed on system pipeline, without additional mounting base.First
Under beginning state and when working normally, spool combination positions under the action of valve core case 11 and shear pin 8, at this point, the inlet and outlet of valve
It communicates, pressure medium is applied to the pressure of piston 6 by sluice way 13, and the thrust for generating piston 6 is not enough to overcome shear pin 8
Shear strength and relative movement part frictional force, spool combination 10 maintains the original state.When pressure medium transfinites, pressure medium
The pressure of piston 6 is applied to by sluice way 13, the thrust for generating piston 6 is enough to overcome the shear strength of shear pin 8 and opposite
The frictional force of moving component, spool combine 10 downward actuations, and after movement, the vulcanized rubber circle in spool upper sealing ring road 20 is pressed onto
On the annular convex platform 21 of outlet connection 14, ring packing structure is formed, to cut off inlet and outlet, realizes the function that superpressure is automatically cut off
Can, system obtains self-protection.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (3)
1. a kind of self feed back excess pressure cutout device, it is characterised in that: including valve body, valve deck, piston, valve core case, spool combination, go out
Mouth connector and inlet union；
The valve body is hollow structure, and sluice way and gas vent are provided on body wall, and sluice way is connected to external working chamber,
Gas vent is connected to exterior space；Valve body one end and valve deck fixed seal connection, the other end are sealedly and fixedly connected with outlet connection,
Inlet union is also integrated on valve body, inlet union is connected to outlet connection；The inner face through-hole edge of the outlet connection has
An axial circle annular protrusion；
The valve deck is provided with axial step blind hole, and piston seal is mounted in the step blind hole of valve deck, and piston external diameter is equal to
The major diameter of valve deck step blind hole；It is provided with intercommunicating pore on valve deck side wall, by the sluice way and step blind via bottom in body wall
Connection；Valve deck inner face has circumferentially spaced boss；
The valve core case outer surface is step axle construction, and has radial boss on the outside of step surface, and valve core case also has center
Axially extending bore；Valve core case is mounted in valve body, and valve core case major diameter section and the sealing of valve interior wall face cooperate, and valve core case step surface is radial
Boss two sides are by valve interior wall face step surface and valve deck inner face boss axial constraint；Coaxial pins are provided in valve core case path section
Hole；
The spool group is combined into stepped cylindrical structure；The path section of spool combination is inserted into the central axial through-hole of valve core case, and and valve
The central axial through-hole wall face sealing cooperation of core print seat；It is provided with pin hole in the path section of spool combination, it is same with valve core case path section
Pin hole cooperation, and shear pin is installed in the pin hole and the coaxial pin hole；Spool combination major diameter section end face is provided with close
Seal ring road, the interior vulcanization of sealing circuit are fixed with rubber；When spool combination with outlet connection contact when, seal circuit in rubber with
Outlet connection inner face through-hole edge axial annular protrusion is in close contact.
2. a kind of self feed back excess pressure cutout device according to claim 1, it is characterised in that: be provided with a circle on valve deck side wall
Annular groove is circumferentially uniformly provided with several drainage inclined holes in a ring groove, by body wall sluice way and step blind hole bottom
Portion's connection.
3. a kind of self feed back excess pressure cutout device according to claim 1, it is characterised in that: spool combines in major diameter section end face
The heart rivets fixing gasket, and the rubber sealed in circuit is pressed in spool combination major diameter section end face by washer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303823.1A CN108131478A (en) | 2017-12-11 | 2017-12-11 | A kind of novel self feed back excess pressure cutout device |
| CN2017113038231 | 2017-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595376A CN109595376A (en) | 2019-04-09 |
| CN109595376B true CN109595376B (en) | 2019-10-18 |
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ID=62390172
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711303823.1A Pending CN108131478A (en) | 2017-12-11 | 2017-12-11 | A kind of novel self feed back excess pressure cutout device |
| CN201811440493.5A Active CN109595376B (en) | 2017-12-11 | 2018-11-29 | A kind of novel self feed back excess pressure cutout device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711303823.1A Pending CN108131478A (en) | 2017-12-11 | 2017-12-11 | A kind of novel self feed back excess pressure cutout device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108131478A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185587B (en) * | 2018-09-19 | 2024-01-30 | 上海宝昭新材料科技中心（有限合伙） | Fluid quick-operation joint |
| CN113236830A (en) * | 2021-04-20 | 2021-08-10 | 北京机电工程研究所 | Gas explosion opening type one-way valve and gas circuit system |
| CN114017326B (en) * | 2021-10-27 | 2022-08-12 | 武汉理工大学 | Rotor vortex ring generating device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082104A (en) * | 1976-06-21 | 1978-04-04 | C. H. Heist Corporation | Pressure relief valve |
| CN102213334A (en) * | 2011-05-19 | 2011-10-12 | 张清海 | Self-operated emergency shutoff valve |
| CN203549081U (en) * | 2013-11-21 | 2014-04-16 | 中煤科工集团重庆研究院有限公司 | Quick-opening valve for explosion suppressor |
| CN203770781U (en) * | 2014-04-03 | 2014-08-13 | 浙江方众阀门有限公司 | Self-powered check valve |
| CN104089057A (en) * | 2014-07-24 | 2014-10-08 | 蚌埠新奥燃气发展有限公司 | Overpressure stop valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3403063B2 (en) * | 1997-04-11 | 2003-05-06 | 川重防災工業株式会社 | Quick opening pressure regulating valve |
-
2017
- 2017-12-11 CN CN201711303823.1A patent/CN108131478A/en active Pending
-
2018
- 2018-11-29 CN CN201811440493.5A patent/CN109595376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082104A (en) * | 1976-06-21 | 1978-04-04 | C. H. Heist Corporation | Pressure relief valve |
| CN102213334A (en) * | 2011-05-19 | 2011-10-12 | 张清海 | Self-operated emergency shutoff valve |
| CN203549081U (en) * | 2013-11-21 | 2014-04-16 | 中煤科工集团重庆研究院有限公司 | Quick-opening valve for explosion suppressor |
| CN203770781U (en) * | 2014-04-03 | 2014-08-13 | 浙江方众阀门有限公司 | Self-powered check valve |
| CN104089057A (en) * | 2014-07-24 | 2014-10-08 | 蚌埠新奥燃气发展有限公司 | Overpressure stop valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108131478A (en) | 2018-06-08 |
| CN109595376A (en) | 2019-04-09 |
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