CN106949274A - Safety relief valve - Google Patents
Safety relief valve Download PDFInfo
- Publication number
- CN106949274A CN106949274A CN201710263480.4A CN201710263480A CN106949274A CN 106949274 A CN106949274 A CN 106949274A CN 201710263480 A CN201710263480 A CN 201710263480A CN 106949274 A CN106949274 A CN 106949274A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- face
- safety relief
- valve element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/08—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
- F16K17/085—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with diaphragm
-
- 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
- F16K17/16—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 with fracturing diaphragm ; Rupture discs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of safety relief valve, including：Valve seat, valve body and valve element, one end of the valve seat is end face, another end opening, is provided with air inlet on the valve seat end face, the openend of the valve seat is provided with internal thread interface；One end of the valve body is end face, and another end opening is provided with exhaust outlet on the end face of the valve body, the openend of the valve body is provided with external screw joint, and the openend of the valve body is threadedly coupled with the openend of the valve seat；The valve element is in straight tube shape, and the madial wall of the lateral wall of the valve element and the valve body is slidably matched, and blowout disk is provided with the valve element, the valve element is provided with helical spring towards between the end face of one end of the valve body and the valve body.Safety relief valve disclosed by the invention can not only discharge the minimum gas of leakage in time when in use, and the extra-high that system is produced can also be discharged in time, and safeguard protection effect is played to fire-fighting system.
Description
Technical field
The invention belongs to fire fighting device field, it is related to a kind of safety relief valve.
Background technology
Gas leakage is frequently present of in fire-fighting system pipeline, if gas leakage can not be discharged in time, it is possible to meeting
Cause fire-fighting system to occur spray situation by mistake to occur；And under quasi-operating status, fire-fighting system is easily by environment temperature
Or other factors influence and cause its expansion of compressed gas, and then system pipeline is burst because internal pressure is raised suddenly.
The content of the invention
In order to solve problem above, the invention provides a kind of safety relief valve, its is simple in construction, dependable performance, is being
When road under the overall leadership produces gas leakage or gases at high pressure, it can be discharged in time, so as to protect fire-fighting system.
In order to achieve the above object, the present invention is solved using following technical scheme.
A kind of safety relief valve, including：Valve seat, valve body and valve element, one end of the valve seat is end face, another end opening,
Air inlet is provided with the valve seat end face, the openend of the valve seat is provided with internal thread interface；One end of the valve body is
Exhaust outlet is provided with end face, another end opening, the end face of the valve body, the openend of the valve body is provided with external screw thread and connect
Mouthful, the openend of the valve body is threadedly coupled with the openend of the valve seat；The valve element is in straight tube shape, the outside of the valve element
The madial wall of wall and the valve body is slidably matched, and is provided with blowout disk in the valve element, and the valve element is towards the valve body
Helical spring is provided between the end face of one end and the valve body.
According to the safety relief valve of the present invention, protected fire-fighting system can be by the internal thread of valve seat openend
Interface is attached with safety relief valve, under normal circumstances, and under the elastic force effect of helical spring, blowout disk is by safety relief
Valve is separated into left and right two chambers；When protected fire extinguishing system has micro-gas leakage, the minimum gas of leakage can be along
The air inlet of valve seat end face enters safety relief valve, by the gap between valve body madial wall and valve element, eventually through valve body end
Exhaust outlet discharge on face；If occurring instantaneous pressure situation in system, gases at high pressure overcome the elastic force of helical spring to act on, valve
Core and blowout disk are moved to valve body cecum together, sealing structure are formed together with valve body and valve seat, instantaneous pressure can be by spiral
Spring buffer；After above-mentioned sealing structure is formed, if gas pressure continues to increase, occur that super-pressure shows by protection system
As when gas pressure accumulation reaches blowout disk explosion critical pressure, blowout disk rupture, over-pressure gas can pass through valve body end
The exhaust outlet release in face.The safety relief valve compact conformation of the present invention, using being threadedly coupled between valve body and valve seat, intensity is reliable
And it is easy to assembling；Valve element in straight tube shape and with valve body clearance sliding fit, on the one hand can ensure that leakage minimum gas from exhaust outlet
Smooth discharge, on the other hand can guarantee that valve element is smoothly slided in valve body, the normal work of fire-fighting system is not influenceed；Valve element
Blowout disk is inside installed, it is ensured that the timely discharge of extra-high, can timely and effectively protect fire-fighting system.
As preferred, annular boss is provided with the madial wall of the valve element, the valve element is towards the valve seat side
Port in be connected through a screw thread inner nut, the blowout disk is fixed between the annular boss and the inner nut.
According to the safety relief valve of the present invention, annular boss is provided with the madial wall of valve element, is easy to consolidating for blowout disk
Fixed, valve element is towards being connected through a screw thread inner nut in the port of the valve seat side, it is ensured that it is effective that blowout disk is fixed
Property and reliability, also allow for the replacing of blowout disk, blowout disk is fixed between the annular boss and the inner nut, can
To play sealing and pressure release effect well.
As preferred, first annular sealing gasket is provided between the blowout disk and the inner nut.
According to the safety relief valve of the present invention, first annular sealing gasket is set between blowout disk and inner nut, can be with
Ensure the sealing between inner nut and blowout disk.
As preferred, the two ends of the helical spring are against on the cecum of the valve body and the annular boss respectively.
According to the safety relief valve of the present invention, due to narrow space between valve body and valve element, in order to can guarantee that valve element in wink
Between can form sealing structure between valve body under high-pressure situations, it is necessary to can be with by the end of compression back valve core in helical spring
The cecum contact of valve body, one end of helical spring is stretched into valve element and withstood on annular boss, after such helical spring is compressed
Do not interfere with and form sealing structure between the end of valve element and the cecum of valve body.
As preferred, the second Gask-O-Seal is provided with the inside of the end face of the valve body.
According to the safety relief valve of the present invention, the second Gask-O-Seal is provided with the inside of the end face of valve body, valve element is upward
After movement, the second Gask-O-Seal is extruded by the end face of valve body and the upper port of valve element, it can be ensured that the sealing of confined space
Property.
As preferred, annular stop muscle is provided with the inside of the end face of the valve body, the end of helical spring is against institute
The inner ring of annular stop muscle is stated, second Gask-O-Seal is located at the outer ring of the annular stop muscle and the inner side of the valve seat
Between wall.
According to the safety relief valve of the present invention, annular stop muscle, the end of helical spring are set on the inside of the end face of valve body
The inner ring of the annular stop muscle is against, is easy to the spacing of helical spring, it is ensured that helical spring provides expected elastic force effect, the
Second ring sealing gasket is located between the outer ring of annular stop muscle and the madial wall of valve seat, is easy to the fixation of the second Gask-O-Seal,
Ensure that the second Gask-O-Seal plays expected sealing function.
Brief description of the drawings
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is a kind of front cross-sectional structural representation of embodiment of the safety relief valve of the present invention；
In Fig. 1：1 valve seat；101 air inlets；2 valve bodies；201 exhaust outlets；202 annular stop muscle；3 valve elements；301 convex annulars
Platform；4 blowout disks；5 helical springs；6 inner nuts；7 first annular sealing gaskets；8 second Gask-O-Seals.
Embodiment
With reference to Fig. 1, embodiments of the invention propose a kind of safety relief valve, including：Valve seat 1, valve body 2 and valve element 3, it is described
One end of valve seat 1 is end face, and another end opening is provided with air inlet 101, the opening of the valve seat 1 on the end face of the valve seat 1
End is provided with internal thread interface；One end of the valve body 2 is end face, another end opening, the row of being provided with the end face of the valve body 2
Gas port 201, the openend of the valve body 2 is provided with external screw joint, the openend of the valve body 2 and the opening of the valve seat 1
End threaded connection；The valve element 3 is in straight tube shape, and the madial wall of the lateral wall of the valve element 3 and the valve body 2 is slidably matched, institute
State and blowout disk 4 is provided with valve element 3, the valve element 3 is set towards between one end of the valve body 2 and the end face of the valve body 2
It is equipped with helical spring 5.
In the embodiment above, protected fire-fighting system can by the internal thread interface of the openend of valve seat 1 with
Safety relief valve is attached, under normal circumstances, and under the elastic force effect of helical spring 5, blowout disk 4 divides safety relief valve
It is divided into left and right two chambers；When protected fire-fighting system has micro-gas leakage, the minimum gas of leakage can be along
The air inlet 101 of the end face of valve seat 1 enters safety relief valve, by the gap between the madial wall of valve body 2 and valve element 3, eventually through
Exhaust outlet 201 on the end face of valve body 2 is discharged；If occurring instantaneous pressure situation in system, gases at high pressure overcome helical spring 5
Elastic force is acted on, and valve element 3 and blowout disk 4 are moved to the cecum of valve body 2 together, and sealing structure is formed together with valve body 2 and valve seat 1,
Instantaneous pressure can be buffered by helical spring 5；After above-mentioned sealing structure is formed, if gas pressure continues to increase, protected
Super-pressure phenomenon occurs in system, and when gas pressure accumulation reaches 4 explosion critical pressure of blowout disk, blowout disk 4 ruptures,
Over-pressure gas can be discharged by the exhaust outlet 201 of the end face of valve body 2.The safety relief valve compact conformation of the present invention, valve body 2 and valve seat
Between 1 using threaded connection, intensity reliability and be easy to assembling；Valve element 3 in straight tube shape and with the clearance sliding fit of valve body 2, a side
Face can ensure that leakage minimum gas, from the smooth discharge of exhaust outlet 201, on the other hand can guarantee that valve element 3 is smoothly slided in valve body 2,
The normal work of fire-fighting system is not influenceed；Blowout disk 4 is installed, it is ensured that the timely row of extra-high in valve element 3
Put, can timely and effectively protect fire-fighting system.
According to one embodiment of present invention, annular boss 301, the valve element 3 are provided with the madial wall of the valve element 3
Inner nut 6 is connected through a screw thread in towards the port of the side of valve seat 1, the blowout disk 4 is fixed on the convex annular
Between platform 301 and the inner nut 6.
In the embodiment above, annular boss 301 is provided with the madial wall of valve element 3, is easy to the fixation of blowout disk 4,
Valve element 3 is towards being connected through a screw thread inner nut 6 in the port of the side of valve seat 1, it is ensured that it is effective that blowout disk 4 is fixed
Property and reliability, also allow for the replacing of blowout disk 4, blowout disk 4 is fixed on the annular boss 301 and the inner nut 6
Between, it can be very good to play sealing and timely pressure release effect.
According to one embodiment of present invention, it is provided between the blowout disk 4 and the inner nut 6 first annular close
Packing 7.
In the embodiment above, first annular sealing gasket 7 is set between blowout disk 4 and inner nut 6, it can be ensured that interior
Sealing between nut 6 and blowout disk 4.
According to one embodiment of present invention, the two ends of the helical spring 5 are against cecum and the institute of the valve body 2 respectively
State on annular boss 301.
In the embodiment above, due to narrow space between valve body 2 and valve element 3, in order to can guarantee that valve element 3 in instantaneous pressure
In the case of can and valve body 2 between form sealing structure, it is necessary to helical spring 5 by compression back valve core 3 end can and valve
The cecum contact of body 2, one end of helical spring 5 is stretched into and withstood in valve element 3 on annular boss 301, such helical spring 5 is pressed
Do not interfered with after contracting and form sealing structure between the end of valve element 3 and the cecum of valve body 2.
According to one embodiment of present invention, it is provided with the second Gask-O-Seal 8 on the inside of the end face of the valve body 2.
In the embodiment above, the second Gask-O-Seal 8 is provided with the inside of the end face of valve body 2, valve element 3 is moved up
Afterwards, the second Gask-O-Seal 8 is by the end face of valve body 2 and extruding for the upper port of valve element 3, it can be ensured that the sealing of confined space
Property.
According to one embodiment of present invention, annular stop muscle 202, spiral are provided with the inside of the end face of the valve body 2
The end of spring 5 is against the inner ring of the annular stop muscle 202, and second Gask-O-Seal 8 is located at the annular stop muscle
Between the madial wall of 202 outer ring and the valve seat 1.
In the embodiment above, annular stop muscle 202 is set on the inside of the end face of valve body 2, and the end of helical spring 5 is against
The inner ring of the annular stop muscle 202, is easy to the spacing of helical spring 5, it is ensured that helical spring 5 provides expected elastic force effect,
Second Gask-O-Seal 8 is located between the outer ring of annular stop muscle 202 and the madial wall of valve seat 1, is easy to the second Gask-O-Seal 8
Fixation, it is ensured that the second Gask-O-Seal 8 plays expected sealing function.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these of the present invention change the scope for belonging to the claims in the present invention and its equivalent technologies with modification
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (6)
1. a kind of safety relief valve, it is characterised in that including：
Valve seat (1), one end of the valve seat (1) is end face, another end opening, and air inlet is provided with the end face of the valve seat (1)
Mouth (101), the openend of the valve seat (1) is provided with internal thread interface；
Valve body (2), one end of the valve body (2) is end face, another end opening, and exhaust is provided with the end face of the valve body (2)
Mouth (201), the openend of the valve body (2) is provided with external screw joint, openend and the valve seat (1) of the valve body (2)
Openend threaded connection；
Valve element (3), the valve element (3) is in straight tube shape, and the lateral wall of the valve element (3) is slided with the madial wall of the valve body (2)
Coordinate, be provided with blowout disk (4) in the valve element (3), the valve element (3) is towards one end of the valve body (2) and the valve
Helical spring (5) is provided between the end face of body (2).
2. safety relief valve according to claim 1, it is characterised in that be provided with ring on the madial wall of the valve element (3)
Towards being connected through a screw thread inner nut in the port of the side of the valve seat (1) on shape boss (301), the valve element (3)
(6), the blowout disk (4) is fixed between the annular boss (301) and the inner nut (6).
3. safety relief valve according to claim 2, it is characterised in that the blowout disk (4) and the inner nut (6)
Between be provided with first annular sealing gasket (7).
4. safety relief valve according to claim 2, it is characterised in that the two ends of the helical spring (5) are against respectively
On the cecum and the annular boss (301) of the valve body (2).
5. safety relief valve according to claim 4, it is characterised in that be provided with the inside of the end face of the valve body (2)
Second Gask-O-Seal (8).
6. safety relief valve according to claim 5, it is characterised in that be provided with the inside of the end face of the valve body (2)
Annular stop muscle (202), the end of the helical spring (5) is against the inner ring of the annular stop muscle (202), second ring
Shape sealing gasket (8) is located between the outer ring of the annular stop muscle (202) and the madial wall of the valve seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263480.4A CN106949274A (en) | 2017-04-20 | 2017-04-20 | Safety relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263480.4A CN106949274A (en) | 2017-04-20 | 2017-04-20 | Safety relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106949274A true CN106949274A (en) | 2017-07-14 |
Family
ID=59476495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710263480.4A Pending CN106949274A (en) | 2017-04-20 | 2017-04-20 | Safety relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106949274A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296810A (en) * | 2018-11-05 | 2019-02-01 | 西安麦门电子科技有限公司 | A kind of electric control exhaust device |
| CN109752223A (en) * | 2017-11-06 | 2019-05-14 | 丹阳市宏光机械有限公司 | A kind of pulse homogenizer |
| WO2021041775A1 (en) * | 2019-08-29 | 2021-03-04 | Milwaukee Electric Tool Corporation | Hydraulic tool having ram piston with integrated overload assembly |
-
2017
- 2017-04-20 CN CN201710263480.4A patent/CN106949274A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752223A (en) * | 2017-11-06 | 2019-05-14 | 丹阳市宏光机械有限公司 | A kind of pulse homogenizer |
| CN109296810A (en) * | 2018-11-05 | 2019-02-01 | 西安麦门电子科技有限公司 | A kind of electric control exhaust device |
| CN109296810B (en) * | 2018-11-05 | 2024-03-08 | 西安麦门电子科技有限公司 | Electric control exhaust device |
| WO2021041775A1 (en) * | 2019-08-29 | 2021-03-04 | Milwaukee Electric Tool Corporation | Hydraulic tool having ram piston with integrated overload assembly |
| US11999042B2 (en) | 2019-08-29 | 2024-06-04 | Milwaukee Electric Tool Corporation | Hydraulic tool having ram piston with integrated overload assembly |
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