CN108105440B - Headstock gear for high-pressure safety valve - Google Patents
Headstock gear for high-pressure safety valve Download PDFInfo
- Publication number
- CN108105440B CN108105440B CN201611055901.6A CN201611055901A CN108105440B CN 108105440 B CN108105440 B CN 108105440B CN 201611055901 A CN201611055901 A CN 201611055901A CN 108105440 B CN108105440 B CN 108105440B
- Authority
- CN
- China
- Prior art keywords
- opening
- closing element
- adapter tube
- valve
- headstock gear
- 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.)
- Expired - Fee Related
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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
- F16K17/40—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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- 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
- F16K1/36—Valve members
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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
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
Abstract
The present invention provides a kind of headstock gears for high-pressure safety valve.Headstock gear includes: valve body, constitutes the main body of safety valve, and entrance is connected to working media；Inside adapter tube, is located at valve inner, and one end and valve body inlet are tightly connected；Opening and closing element is located at valve inner, is pivotally connected with the other end of inside adapter tube；Executing agency, internally positioned adapter tube and opening and closing element junction are tightly connected internal adapter tube with opening and closing element when not being triggered, when being triggered, discharge the connection of internal adapter tube and opening and closing element.It is designed according to the technique and scheme of the present invention by the load sharing of opening and closing element, while realizing zero leakage, operating force required for executing agency can be substantially reduced, to lay a good foundation to improve the safety and reliability of valve operation.
Description
Technical field
The present invention relates to npp safety facility technology field more particularly to a kind of opening and closing dresses for high-pressure safety valve
It sets.
Background technique
Passive technology refer to only relied on using natural force, such as gravity, Natural Circulation and compressed gas etc. it is simple
Physics principle does not need pump, blower, diesel engine, cooler or the driving of other rotating machineries, to not need to pacify yet
One engineering technology of full AC power source or the outer power drive of people.Passive technology can be divided into 12 seed types: follow naturally
Ring class；Gravity class；Effect of inertia class；The temperature difference transmits class；Material effect class；Volume change class；Siphonic effect class；Density lock
Class；Negative-feedback class；Pressure acts on class；Non-return valve class；Compound (igniting) device class of hydrogen etc..
In nuclear power plant, passive technology more refers to non-passive safety technology, non-passive safety refer to do not depend on it is external
Triggering and power source, and realize security function by the natures such as free convection, gravity, pressure accumulation gesture.According to International Atomic
Can mechanism definition, passive system refers in the system or system being made of completely passive component using very limited
Active component start subsequent passive process.Passive component is not against external input (power, power or signal, people
Work operation), their effect depends on nature physics law (such as gravity, free convection, heat transfer etc.), and inherent characteristic is (such as
Material properties etc.) or system in energy (such as chemical reaction, decay heat).I.e. passive technology concept refers to that foundation exists
Passive equipment on the basis of principle of inertia (running down such as pumped), gravity rule (such as potential difference), heat transmitting rule is (passive to set
It is standby) characteristic, i.e. the realization of its function needn't rely on external power.Passive system by reducing active equipment, cancel or
The requirement to emergency power supply is reduced, the modes such as inservice inspection and the maintenance of equipment is reduced, improves the economy of system.
1, No. 2 unit of nuclear power plant, three, China obtains construction permit, indicates the large size using non-passive safety theory
Nuclear power plant enters practical stage, and is increasingly becoming new trend.It is adopted in the security system of three nuclear power plants, 1, No. 2 unit
With explosive valve, this application does not expect that explosive valve is opened during power station is operated normally with anticipated transient.In addition, they are opened
Afterwards It is not necessary to be re-closing off.It the use of explosive valve major advantage include: in zero leakage during normal operation；It is reliable during accident
It opens on ground；It reduces maintenance and relevant operator radiates irradiation.
For this purpose, designing one kind can reduce technical difficulty, reliability according to explosive valve working principle and practical application request
Identify that the explosive valve of difficulty and manufacturing cost is very necessary.
Summary of the invention
It is applicable to design and manufacture the main purpose of the present invention is to provide a kind of headstock gear for high-pressure safety valve
Basis is provided in the pressure relief device of high energy high-pressure medium, can be dropped while ensuring explosive valve necessary function with realizing
Low technical difficulty and cost.
A kind of headstock gear for high-pressure safety valve according to the present invention characterized by comprising valve body constitutes peace
The main body of full valve, entrance are connected to working media；Inside adapter tube, is located at valve inner, and one end and valve body inlet are tightly connected；It opens
Closing member is located at valve inner, is pivotally connected with the other end of inside adapter tube；Executing agency, internally positioned adapter tube and opening and closing element knot
It at conjunction, when not being triggered, is tightly connected internal adapter tube with opening and closing element, when being triggered, discharges internal adapter tube and opening and closing element
Connection.
According to one embodiment of present invention, opening and closing element includes opening and closing element inner disc and opening and closing element external disk, and opening and closing element inner disc is straight
Contact working media.
According to one embodiment of present invention, opening and closing element external disk is connected by pivot and internal adapter tube.
According to one embodiment of present invention, opening and closing element external disk is connected by executing agency and internal adapter tube.
According to one embodiment of present invention, opening and closing element inner disc is connected by attachment weld and internal adapter tube.
According to one embodiment of present invention, there are the cylinders of certain altitude between opening and closing element inner disc and opening and closing element external disk
Space.
According to one embodiment of present invention, opening and closing element inner disc and opening and closing element external disk pass through one or more pins and connect each other
It connects.
According to one embodiment of present invention, opening and closing element inner disc deforms in the pressure increase of working media, pressure
More large deformation is bigger.
According to one embodiment of present invention, not right in the compressive deformation of the following opening and closing element inner disc of working media first pressure
Opening and closing element external disk applies pressure, applies in the compressive deformation of the above opening and closing element inner disc of working media first pressure to opening and closing element external disk
Pressure.
According to one embodiment of present invention, under the working medium pressure when triggering executing agency, consolidation in opening and closing element
Body is cut or is broken.
According to one embodiment of present invention, pivot is located at opening and closing element lower end, and executing agency is located at opening and closing element upper end.
According to one embodiment of present invention, executing agency includes drawing bar and the combination or push strut and execution for executing bar
The combination of bar executes bar and is inserted in opening and closing element and internal adapter tube, bar is executed when being triggered in the effect of drawing bar or push strut
Adapter tube radial direction is inwardly or outwardly extracted inside lower edge.
According to one embodiment of present invention, opening and closing element around the pivot can opening angle be greater than 90 degree.
Compared with prior art, it is designed according to the technique and scheme of the present invention by the load sharing of opening and closing element, is realizing zero leakage
While, operating force required for executing agency can be substantially reduced, thus to improve the safety and reliability of valve operation
It lays a good foundation.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of closed schematic diagram of unfolding mode of valve opening and closing device according to an embodiment of the present invention；
Fig. 2 is a kind of unlatching state schematic diagram of unfolding mode of valve opening and closing device according to an embodiment of the present invention；
Fig. 3 is the closed schematic diagram of another unfolding mode of valve opening and closing device according to an embodiment of the present invention；
Fig. 4 is the unlatching state schematic diagram of another unfolding mode of valve opening and closing device according to an embodiment of the present invention；
Fig. 5 is headstock gear partial schematic diagram according to an embodiment of the present invention；
Fig. 6 is a kind of valve mechanism figure of unfolding mode of valve opening and closing device according to an embodiment of the present invention；
Fig. 7 is a kind of schematic diagram of the trigger device of unfolding mode of valve opening and closing device according to an embodiment of the present invention；
Fig. 8 is that a kind of trigger device of unfolding mode of valve opening and closing device according to an embodiment of the present invention is partially schematic
Figure；
Fig. 9 is the valve mechanism figure of another unfolding mode of valve opening and closing device according to an embodiment of the present invention；
Figure 10 is the signal of the trigger device of another unfolding mode of valve opening and closing device according to an embodiment of the present invention
Figure；
Figure 11 is the decomposition of the trigger device of another unfolding mode of valve opening and closing device according to an embodiment of the present invention
Figure；
Figure 12 is that the trigger device of another unfolding mode of valve opening and closing device according to an embodiment of the present invention locally shows
It is intended to.
In the drawings, the same or similar part is indicated using identical reference label.
Drawing reference numeral explanation:
102- valve body；Adapter tube inside 104-；106- opening and closing element external disk；108- opening and closing element inner disc；109- attachment weld；110-
Execute bar；112- shaft；202- first shell；204- second shell；206- third shell；210- deformable plates；212- deformation
Thin plate connecting rod；Lever of 214-；Bis- levers of 216-；Lever shaft of 218-；Bis- lever shafts of 220-；Among 222-
Shaft；224- drawing bar；225- deformed plate sealing welding；310- entrance side end panel；312- once sealing circle；314- secondary seal
Circle；316- outer tube；318- inner sleeve；320- holddown spring；322- end cap；324- valve body adapter tube；326- push strut sealing welding；
328- push strut；Bar is executed on the left of 330-；Bar is executed on the right side of 332-；The side 334- is to through-hole；336- spring end plate；338- valve opens
Closing member；340- adjustment bolt.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and the specific embodiments, to this
Invention is described in further detail.
In the following description, the reference of " one embodiment ", " embodiment ", " example ", " example " etc. is shown
The embodiment or example so described may include special characteristic, structure, characteristic, property, element or limit, but not each reality
Applying example or example all necessarily includes special characteristic, structure, characteristic, property, element or limit.In addition, reusing phrase " one
In a embodiment " although it is possible to be to refer to identical embodiment, but be not necessarily referring to identical embodiment.
For the sake of simplicity, some technical features known to those skilled in the art are omitted in being described below.
Position of the gate principle structure and opening and closing element that the embodiment of the present invention is applicable in valve is as Figure 1-Figure 4,
It mainly include six parts: valve body 102 (general cylindrical)；Inside adapter tube 104 (it is general cylindrical, it is located in valve body 102,
One end is fixedly connected with 102 opening inner side of valve body, which is connected to working media)；Opening and closing element (general in disk form, connection
To 104 other end of internal adapter tube)；Execute bar 110 (internally positioned adapter tube 104 and opening and closing element junction)；Shaft 112 (is located at interior
Portion's adapter tube 104 and opening and closing element junction are executing 110 opposite end of bar, shaft be located at opening and closing element place plane and with locating circumference
It is tangent)；Pin (is located on opening and closing element, be not shown).Wherein, Fig. 1 and Fig. 2 is a kind of unfolding mode, and Fig. 1 is that valve closes shape
State, Fig. 2 are valve opening state, i.e., ought be used to fix the execution bar 110 of opening and closing element and internal adapter tube 104 along internal adapter tube 104
When radial direction is pulled out outward, valve (opening and closing element) is opened.Fig. 3 and Fig. 4 is another unfolding mode, and Fig. 3 is valve closing
State, Fig. 4 are valve opening state, i.e., ought be used to fix execution bar (including the left side execution bar of opening and closing element and internal adapter tube 104
330 and right side execute bar 332) when being inwardly pulled out along internal 104 radial direction of adapter tube, valve opening.
The schematic diagram of opening and closing element is as shown in Figure 5.Opening and closing element is divided into 106 two parts of opening and closing element inner disc 108 and opening and closing element external disk.
Load sharing principle is as follows: when the pressure medium in internal adapter tube 104 is stepped up, opening and closing element inner disc 108 will deform, simultaneously
Undertake corresponding load.When pressure is smaller, the load of pressure initiation all passes through attachment weld 109 by opening and closing element inner disc 108
It is transmitted to internal adapter tube 104.With the increase of pressure, the deformation of opening and closing element inner disc 108 is also incrementally increased, until its deformation by
The limitation of opening and closing element external disk 106.Since the rigidity of opening and closing element external disk 106 is far longer than 108 rigidity of opening and closing element inner disc, at this point, interior
Pressure medium in portion's adapter tube 104 is formed by end load increment and almost all is transmitted in opening and closing element external disk 106.Work as pressure
When power is increased to setting valve, execution bar 110 is drawn the extraction of bar 224 or left side executes bar 330 and right side executes bar 332 and leads to
It crosses push strut 328 to be pulled out, opening and closing element external disk 106 112 is opened around the shaft, discharges its whole pressure loading undertaken, this part
In load transfer to opening and closing element inner disc 108.By calculating accordingly and size design, guarantee the medium in internal adapter tube 104
When pressure reaches setting valve, 108 entirety of opening and closing element inner disc is cut or is broken by generated whole end load.Connect opening and closing element
Inner disc 108 and the pin of opening and closing element external disk 106 will be further ensured that opening and closing element unitary rotation to fully open position.
Fig. 1-headstock gear shown in fig. 5 can be matched with a variety of different trigger devices, including electronic, steam-operating, liquid
Pressure etc..
For the substantive reliability for improving explosive valve used in current nuclear power plant, included medium can be used as power
Trigger mechanism, to eliminate the various uncertainties as brought by degrading etc. igniter, explosive.Below with reference to Fig. 6-figure
One of specific design for being suitable for safety valve non-reclosed of 8 descriptions.
Position of the gate principle structure and trigger device that the embodiment of the present invention is applicable in valve is as shown in fig. 6, main
It to include four parts: valve body 102；Trigger device first shell 202 (is connected to) with the outer working media of valve body 102；Trigger device
Two shells 204 (being connected to trigger device first shell 202)；Trigger device third shell 206 (is connected to trigger device second shell
Body 204 and valve body 102).Wherein, valve body 102 and its contain component be valve main part, trigger device first shell 202,
Trigger device second shell 204 and trigger device third shell 206 and its containing component constitute trigger device of the invention.
The schematic diagram of internal structure of valve and trigger device is as shown in Figure 7.The sectional view of trigger device is as shown in Figure 8.Touching
It is as follows to send out principle: deformable plates 210 are located at one end that trigger device first shell 202 is connected to working media, directly bear system
The pressure of system medium.With the increase of pressure, deformable plates 210 are deformed, and the deformable plates on deformable plates 210 is driven to connect
Bar 212 pushes a lever 214 around a lever shaft 218 movement being fixed in trigger device first shell 202.By
Gap appropriate is set between lever 214 and secondary lever 216, secondary lever 216 will be kept in situ during normal operation.
With the further raising of pressure medium, a lever 214 will push secondary lever 216 around being fixed on trigger device first shell
Secondary lever shaft 220 in 202 moves.Secondary lever 216 extends in trigger device second shell 204, other end connection
To the intermediate rotary shaft 222 in trigger device third shell 206, intermediate rotary shaft 222 is also connected to drawing bar 224, drawing bar 224 from
Trigger device third shell 206 extends to valve body 102, with the executing agency for executing the composition safety valve of bar 110.When pressure medium liter
When height arrives setting valve, displacement caused by deformable plates 210 passes through intermediate rotary shaft 222 and drawing after lever amplification twice
Bar 224, will execute bar 110 and extracts from valve opening and closing element, execute bar 110 to valve internal adapter tube 104 and valve to release
The connection function of opening and closing element external disk 106.At this point, the working medium pressure in valve internal adapter tube 104 will pass through valve opening and closing element
Inner disc 108 pushes valve opening and closing element external disk 106 to rotate around opening and closing element shaft 112, and valve is opened and released stress.In order to guarantee just
Deformed plate sealing welding 225 is arranged in often zero leakage when operation between deformable plates 210 and trigger device first shell 202.Separately
Outside, in order to guarantee that trigger device executing agency generates sufficiently large displacement to guarantee triggering precision, which is preferably applicable in
In larger caliber pipeline.
Triggering definite value of the trigger device shown in Fig. 6-Fig. 8 using the deformation of sheet metal as valve opening.It will by lever
Thin plate deformation amplification, to improve trigger sensitivity.By the gap design between thin plate connecting rod and lever, guarantee to press in operation
When power is no more than setting value, transmission mechanism (lever) and executing agency's (pull rod) be held in place it is motionless, so as to avoid operation
Abrasion.
Alternatively, Fig. 1-headstock gear shown in fig. 5 can also be with a kind of guide suitable for safety valve non-reclosed
Formula trigger device is used cooperatively.Its specific design is described below with reference to Fig. 9-Figure 12.
Position of the gate principle structure and trigger device that the embodiment of the present invention is applicable in valve is as shown in figure 9, main
It to include four parts: valve body 102；Trigger device first shell 202 (is connected to) with the outer working media of valve body 102；Trigger device
Two shells 204 (being connected to trigger device first shell 202)；Trigger device third shell 206 (is connected to trigger device second shell
Body 204 and valve body 102).Wherein, valve body 102 and its contain component be valve main part, trigger device first shell 202,
Trigger device second shell 204 and trigger device third shell 206 and its containing component constitute trigger device of the invention.
The schematic diagram of internal structure of valve trigger device is as shown in Figure 10.Seperated schematic diagram such as Figure 11 institute of trigger device
Show.Executing agency's partial schematic diagram is as shown in figure 12 in trigger device.
The working principle of trigger device is as follows in the present invention: under nominal situation, face is touched in trigger device second shell 204
The U-shaped inner sleeve 318 of transmitting apparatus first shell 202 blocks working media from trigger device under the action of holddown spring 320
One shell 202 arrives the fluid channel of trigger device third shell 206.The other end of holddown spring 320 is limited by spring end plate 336
Fixed, the position of spring end plate 336 can be adjusted by adjustment bolt 340 on other end end cap 322.Trigger device first shell 202 with
The diameter of 204 communicating passage of trigger device second shell is less than the caliber of inner sleeve 318, between communicating passage and inner sleeve 318
It is lined with annular entry side end panel 310,310 outer diameter of entrance side end panel is approximately equal to 318 caliber of inner sleeve, and it is logical that inner hole is approximately equal to connection
Road.Once sealing circle 312 and secondary seal circle 314 prevent working media between entrance side end panel 310 and inner sleeve 318
Leakage.At this point, the area that inner sleeve 318 bears working medium pressure is the inner duct area of entrance side end panel 310.With work
Make the raising of pressure medium, holddown spring 320 generates compressive deformation in inner sleeve 318, and the pressing force that sealing ring is born is gradually
It reduces.When working medium pressure reaches setting valve, the effect of sealing ring loss of seal, the contact of working media and inner sleeve 318
Area is from the inner duct sharply changing section of entrance side end panel 310 to the entire end area of inner sleeve 318, to make inner sleeve 318
The pressure for being transmitted to holddown spring 320 increases suddenly.At this point, towards trigger device second shell 204 caused by inner sleeve 318
The displacement in 322 direction of other end end cap, it is sufficient to guarantee that working media passes through 316 side of outer tube outside inner sleeve 318 to through-hole
334, by the annular compartment between trigger device second shell 204 and outer tube 316, into trigger device third shell 206,
And then enter the valve body adapter tube 324 between trigger device and valve body.The push strut of valve body adapter tube 324 and executing agency's a part
Push strut sealing welding 326 between 328 plays the role of accumulation of energy to the working media for entering valve body adapter tube 324, when valve body is taken over
When working media in 324 reaches setting value, sealing welding is thrust, and pressure effect makes push strut 328 that left side be driven to execute bar 330
Bar 332 (the execution bar 110 being equivalent in preceding embodiment) is executed with right side to move downward, and executes bar 330 until releasing left side
Bar 332 is executed with right side (to be equivalent to outside the opening and closing element in preceding embodiment valve internal adapter tube 104 and valve opening and closing element 338
The combination of disk 106 and opening and closing element inner disc 108) connection function.At this point, the working medium pressure in valve internal adapter tube 104 will
Valve opening and closing element 338 is pushed to rotate around opening and closing element shaft 112, valve is opened and released stress.
Mutation of the trigger device compression area shown in Fig. 9-Figure 12 before and after setting valve designs (from entrance side end panel 310
Entire end area of the inner duct sharply changing section to inner sleeve 318), while guaranteeing triggering precision, what also guarantee triggered can
By property.Push strut sealing welding 326 between valve body adapter tube 324 and push strut 328 designs, and makes to form one inside trigger device
Closed chamber, when normal work, can be used for leakage monitoring.Valve body adapter tube 324 is avoided to the accumulation of energy design of triggering medium and is pushed away
Between compression bar 328 a possibility that early stage by-pass flow pressure release, to further ensure the reliability of valve opening.
Although the embodiment of the present invention is mostly described by taking circular cross-section as an example, such as valve body 102, internal adapter tube 104, opening and closing
Part, shell, deformable plates 210, entrance side end panel 310, sealing ring, outer tube 316, inner sleeve 318, end cap 322, valve body adapter tube
324, spring end plate 336 etc., but those skilled in the art's reason is it should be clear that according to specific design requirement, section be can be not
It is same as circular any shape, such as oval, rectangle etc..
The above description is only an embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (13)
1. a kind of headstock gear for high-pressure safety valve characterized by comprising
Valve body, constitutes the main body of safety valve, and entrance is connected to working media；
Inside adapter tube, is located at the valve inner, and one end and valve body inlet are tightly connected；
Opening and closing element is located at the valve inner, is pivotally connected with the internal other end taken over, the opening and closing element includes opening and closing
Part inner disc and opening and closing element external disk, the opening and closing element inner disc and the opening and closing element external disk are used to carry out the pressure of the working media
Load sharing；
Executing agency is located at the internal adapter tube and the opening and closing element junction, when not being triggered, make the internal adapter tube with
The opening and closing element is tightly connected, and when being triggered, discharges the connection of the internal adapter tube and the opening and closing element.
2. headstock gear according to claim 1, which is characterized in that the opening and closing element inner disc directly contacts working media.
3. headstock gear according to claim 2, which is characterized in that the opening and closing element external disk passes through pivot and the inside
Adapter tube connection.
4. headstock gear according to claim 2, which is characterized in that the opening and closing element external disk by the executing agency with
The internal adapter tube connection.
5. headstock gear according to claim 2, which is characterized in that the opening and closing element inner disc by attachment weld with it is described
Inside adapter tube connection.
6. headstock gear according to claim 2, which is characterized in that the opening and closing element inner disc and the opening and closing element external disk it
Between there are the cylindrical spaces of certain altitude.
7. headstock gear according to claim 2, which is characterized in that the opening and closing element inner disc and the opening and closing element external disk are logical
One or more pins are crossed to be connected to each other.
8. headstock gear according to claim 2, which is characterized in that the opening and closing element inner disc increases in the pressure of working media
Added-time deforms, and pressure more large deformation is bigger.
9. headstock gear according to claim 8, which is characterized in that in working media first pressure opening and closing element as described below
The compressive deformation of inner disc does not apply pressure to the opening and closing element external disk, in working media first pressure the above opening and closing element inner disc
Compressive deformation to the opening and closing element external disk apply pressure.
10. headstock gear according to claim 2, which is characterized in that the working media when triggering the executing agency
Under pressure, the opening and closing element inner disc is integrally cut or is broken.
11. headstock gear according to claim 1 to 10, which is characterized in that the pivot is located at the opening and closing
Part lower end, the executing agency are located at the opening and closing element upper end.
12. headstock gear according to claim 1 to 10, which is characterized in that the executing agency includes drawing
The combination of bar and execution bar or push strut and the combination for executing bar, the execution bar are inserted in the opening and closing element and the internal adapter tube
In, when being triggered, the execution bar is under the action of the drawing bar or the push strut along the internal adapter tube radial direction
Inwardly or outwardly extract.
13. headstock gear according to claim 1 to 10, which is characterized in that the opening and closing element is around the pivot
Can opening angle be greater than 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055901.6A CN108105440B (en) | 2016-11-25 | 2016-11-25 | Headstock gear for high-pressure safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055901.6A CN108105440B (en) | 2016-11-25 | 2016-11-25 | Headstock gear for high-pressure safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108105440A CN108105440A (en) | 2018-06-01 |
| CN108105440B true CN108105440B (en) | 2019-08-16 |
Family
ID=62204298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611055901.6A Expired - Fee Related CN108105440B (en) | 2016-11-25 | 2016-11-25 | Headstock gear for high-pressure safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105440B (en) |
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|---|---|---|---|---|
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| US7438087B1 (en) * | 2005-09-30 | 2008-10-21 | Taylor Innovations, L.L.C. | Overpressure rotary valve assembly with locking pin and collapsible member |
| CN203131149U (en) * | 2013-02-01 | 2013-08-14 | 中核苏阀科技实业股份有限公司 | Quick-opening valve of single-blind-pipe structure |
| CN103759055A (en) * | 2014-01-21 | 2014-04-30 | 大连大高阀门股份有限公司 | Firer explosion valve |
| CN103775698A (en) * | 2014-01-21 | 2014-05-07 | 大连大高阀门股份有限公司 | Nuclear plant explosion valve with two-way sealing structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1492688A4 (en) * | 2002-11-14 | 2006-02-08 | Automotive Systems Lab | Pressurized gas release mechanism |
-
2016
- 2016-11-25 CN CN201611055901.6A patent/CN108105440B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3474809A (en) * | 1965-12-27 | 1969-10-28 | Pyronetics Inc | Normally-closed explosive-operated valve |
| US7438087B1 (en) * | 2005-09-30 | 2008-10-21 | Taylor Innovations, L.L.C. | Overpressure rotary valve assembly with locking pin and collapsible member |
| CN203131149U (en) * | 2013-02-01 | 2013-08-14 | 中核苏阀科技实业股份有限公司 | Quick-opening valve of single-blind-pipe structure |
| CN103759055A (en) * | 2014-01-21 | 2014-04-30 | 大连大高阀门股份有限公司 | Firer explosion valve |
| CN103775698A (en) * | 2014-01-21 | 2014-05-07 | 大连大高阀门股份有限公司 | Nuclear plant explosion valve with two-way sealing structure |
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| CN108105440A (en) | 2018-06-01 |
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