CN206320324U - A kind of high pressure line gate valve with pressure relief device - Google Patents
A kind of high pressure line gate valve with pressure relief device Download PDFInfo
- Publication number
- CN206320324U CN206320324U CN201621414601.8U CN201621414601U CN206320324U CN 206320324 U CN206320324 U CN 206320324U CN 201621414601 U CN201621414601 U CN 201621414601U CN 206320324 U CN206320324 U CN 206320324U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- soft
- ring structure
- gate valve
- 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.)
- Active
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a kind of high pressure line gate valve with pressure relief device, the gate valve includes：Valve body, valve seat, bonnet, flashboard and valve rod；The flashboard is arranged in valve body；One end of the valve rod is connected with flashboard, and the other end passes through bonnet；Pressure relief vent is offered on the Way out of the flashboard；Outer bypass relief valve is added in the lumen position of the valve body；The middle part self sealing structure of the outer wall of the valve rod and the shaft hole inner wall of valve body is Double seal ring structure；The Double seal ring structure includes the stainless steel elastic hard sealing circle and soft graphite soft seal circle or soft graphite braided packing soft seal circle set gradually along axis hole axis；The top of the Double seal ring structure sets filler cover plate；The lower section of the Double seal ring structure sets upper seal support, and filler spacer ring is set between upper seal support and soft seal circle.
Description
Technical field
The utility model is related to valve field, more particularly, to a kind of high pressure line gate valve with pressure relief device.
Background technology
Pipeline gate valve is primarily adapted for use on the pipelines such as oil transportation, water delivery, gas transmission, pipeline medium is switched off or on, with fine
Sealing property.But just because of its excellent two way seal performance, when HTHP or cryogenic media are closed in lumen
When, if lumen temperature is constantly raised, when media expansion to lumen can not be born, huge potential safety hazard can be produced, gently then valve
Door is killed and can not opened and closed, and heavy then initiation valve is destroyed, whole system is had an immense impact on, or even whole production procedure is caused
Harm, brings security of the lives and property hidden danger.Accordingly, it would be desirable to a kind of high pressure sluice valve with pressure relief device is researched and developed, it is different to solve lumen
Often boost the harm brought.In addition, the self sealss circle sealing of conventional line gate valve is single, there is certain hidden danger.
Utility model content
The purpose of this utility model is to provide a kind of high pressure line gate valve with pressure relief device.
To achieve the above object, the utility model uses herein below：
A kind of high pressure line gate valve with pressure relief device, the gate valve includes：Valve body, valve seat, bonnet, flashboard and valve rod；Institute
Flashboard is stated to be arranged in valve body；One end of the valve rod is connected with flashboard, and the other end passes through bonnet；In the exporter of the flashboard
Offer pressure relief vent upwards；Outer bypass relief valve is added in the lumen position of the valve body；The outer wall and valve body of the valve rod
Shaft hole inner wall middle part self sealing structure be Double seal ring structure；The Double seal ring structure includes setting successively along axis hole axis
The stainless steel elastic hard sealing circle and soft graphite soft seal circle or soft graphite braided packing soft seal circle put；The double density
The top of seal structure sets filler cover plate；The lower section of the Double seal ring structure sets upper seal support, upper seal support and soft close
Filler spacer ring is set between seal.
Further, the flashboard has two sealing surfaces, and elastic groove is provided between two sealing surfaces.Using elastic groove
Flashboard structure, can improve sealing property, increase the service life.
Further, the gate valve also includes：Handwheel, setting is mutually fixed with valve rod through valve stem nut.
The utility model has advantages below：
1st, gate valve of the present utility model increases pressure relief vent on flashboard Way out, the pressure that lumen media expansion is brought
Growth is transferred to valve downstream pipeline, to dilute the adverse effect boosted and brought extremely；Install outer bypass pressure release additional in lumen position
Valve, with cavity pressure in balance.
2nd, the self sealss circle of traditional middle part self sealing structure is modified to by soft by high pressure line gate valve of the present utility model
The double sealing structure of sealing ring and elastic hard sealing circle composition, below with soft graphite or soft graphite braided packing compacting
Into soft seal circle, elastic hard sealing circle is made with stainless steel above, the structure of existing wedge-type seal circle has so been provided simultaneously with
Advantage, and the shortcoming of existing sealing structure can be made up.
3rd, high pressure line gate valve design of the present utility model is reasonable, technique is advanced, dependable performance, and sealing property is high, uses
Long lifespan.
4th, high pressure line gate valve of the present utility model can be applied to boiler, offshore oil drilling platform, petrochemical industry, smelting, coal
The industry such as charcoal industry and natural gas, may use in the various pipe-line systems of thermal power station, be resistant to 630 DEG C of hot environments.
Brief description of the drawings
Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the high pressure line gate valve of the present utility model with pressure relief device.
Embodiment
In order to illustrate more clearly of the utility model, the utility model is done further with reference to preferred embodiment
It is bright.It will be appreciated by those skilled in the art that specifically described content is illustrative and be not restrictive below, should not be with this
Limit protection domain of the present utility model.
Embodiment
As shown in figure 1, being the structural representation of the high pressure line gate valve of the present utility model with pressure relief device.The band pressure release
The high pressure line gate valve of device, the gate valve includes：Valve body 1, valve seat 2, bonnet 7, flashboard 3, valve rod 4, handle 13.Bonnet 7 and valve
Body 1 is fixed through bolt and nut 5 and pad 6.Flashboard 3 is arranged in valve body 1, between two sealing surfaces, and two sealing surfaces
Provided with elastic groove 16.One end of valve rod 4 is connected with flashboard 3, and the other end passes through bonnet 7.Handwheel 13 is set with valve rod 4 through valve rod spiral shell
Mother 12 mutually fixes.Outer bypass relief valve 14 is added in the lumen position of valve body 1.Offer and unload on the Way out of flashboard 3
Press hole 15.The middle part self sealing structure of the outer wall of valve rod 4 and the shaft hole inner wall of valve body 1 is Double seal ring structure 10, including along axle
The stainless steel elastic hard sealing circle and soft graphite soft seal circle or soft graphite braided packing that axially bored line is set gradually are soft close
Seal.The top of Double seal ring structure 10 sets filler cover plate 11, and the lower section of Double seal ring structure sets upper seal support 8, upper close
Seal and filler spacer ring 9 is set between seat 8 and Double seal ring structure 10.
The temperature in use scope of high pressure line gate valve of the present utility model is (- 29) DEG C -570 DEG C, and leakage class meets
《ISO 5208-2008》A grades of requirements, zero leakage, nominal pressure covers PN16-PN420, CLASS 150-CLASS 2500, should
With extensive.Butt welding connection can be used.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all embodiments can not be exhaustive here,
It is every to belong to the obvious change or change still in of the present utility model that the technical solution of the utility model extends out
The row of protection domain.
Claims (3)
1. a kind of high pressure line gate valve with pressure relief device, it is characterised in that the gate valve includes：Valve body, valve seat, bonnet, lock
Plate and valve rod；The flashboard is arranged in valve body；One end of the valve rod is connected with flashboard, and the other end passes through bonnet；Described
Pressure relief vent is offered on the Way out of flashboard；Outer bypass relief valve is added in the lumen position of the valve body；The valve rod
Outer wall and valve body shaft hole inner wall middle part self sealing structure be Double seal ring structure；The Double seal ring structure is included along axle
The stainless steel elastic hard sealing circle and soft graphite soft seal circle or soft graphite braided packing that axially bored line is set gradually are soft close
Seal；The top of the Double seal ring structure sets filler cover plate；The lower section of the Double seal ring structure sets upper seal support, on
Filler spacer ring is set between seal receptacle and soft seal circle.
2. a kind of high pressure line gate valve with pressure relief device according to claim 1, it is characterised in that the flashboard has
Elastic groove is provided between two sealing surfaces, and two sealing surfaces.
3. a kind of high pressure line gate valve with pressure relief device according to claim 1, it is characterised in that the gate valve is also wrapped
Include：Handwheel, setting is mutually fixed with valve rod through valve stem nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621414601.8U CN206320324U (en) | 2016-12-22 | 2016-12-22 | A kind of high pressure line gate valve with pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621414601.8U CN206320324U (en) | 2016-12-22 | 2016-12-22 | A kind of high pressure line gate valve with pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320324U true CN206320324U (en) | 2017-07-11 |
Family
ID=59259866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621414601.8U Active CN206320324U (en) | 2016-12-22 | 2016-12-22 | A kind of high pressure line gate valve with pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253270A (en) * | 2018-10-15 | 2019-01-22 | 兰州高压阀门有限公司 | A kind of muff gate valve under special operation condition |
-
2016
- 2016-12-22 CN CN201621414601.8U patent/CN206320324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253270A (en) * | 2018-10-15 | 2019-01-22 | 兰州高压阀门有限公司 | A kind of muff gate valve under special operation condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011134400A1 (en) | Bidirectional pressure self balancing stop valve | |
| CN207316161U (en) | One kind encryption double containment environmental protection check-valves | |
| CN206320324U (en) | A kind of high pressure line gate valve with pressure relief device | |
| CN203442165U (en) | Improved structure of valve rod connection portion of vacuum butterfly valve | |
| CN204284478U (en) | LNG heavy caliber cast steel stop valve | |
| CN207864680U (en) | Ultra-low temperature ball valve | |
| CN108775406A (en) | High-performance nano coating corrugated tube valve special for chlorine | |
| CN105402433B (en) | The external and internal pressure sealing structure of underwater ball valve | |
| CN205078800U (en) | Butterfly valve | |
| CN107631037A (en) | A kind of automatic decompression type butterfly valve | |
| CN204459183U (en) | High-performance double seal bellows stop valve special for chlorine | |
| CN208237108U (en) | The underwater flat gate valve of subsea tree | |
| CN205026135U (en) | Low temperature upper assembling type fixes ball valve | |
| CN202392344U (en) | Double-supporting self-sealed rotating compensator | |
| CN203374839U (en) | Ultra-low temperature gate valve | |
| CN204610917U (en) | Forged steel pipeline soft seal plate valve | |
| CN208919347U (en) | A kind of elastic packing butterfly valve | |
| CN107917205A (en) | A kind of soft seal three-eccentric-butterfly-valve | |
| CN203686217U (en) | Fixed ball valve | |
| CN205423886U (en) | Intelligent high temperature resistant gate valve | |
| CN207064691U (en) | A kind of fast detachable pipeline gate valve | |
| CN206860968U (en) | Axial flow type check valve | |
| CN203009855U (en) | Internal-pressure self-sealing type valve cover stop valve | |
| CN207161751U (en) | A kind of multi-sealed adjustable plug valve | |
| CN205896372U (en) | Butterfly valve with pressure release function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |