CN207598949U - Super-pressure relief valve - Google Patents
Super-pressure relief valve Download PDFInfo
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- CN207598949U CN207598949U CN201721738185.1U CN201721738185U CN207598949U CN 207598949 U CN207598949 U CN 207598949U CN 201721738185 U CN201721738185 U CN 201721738185U CN 207598949 U CN207598949 U CN 207598949U
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- valve
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- valve seat
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- pressure relief
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Abstract
The utility model belongs to super-pressure relief valve technical field, particularly discloses a kind of super-pressure relief valve, solves the problems, such as that existing super-pressure relief valve service life is short and outer drain port cannot adjust, the technical solution of use：Including valve body, discharge orifice is offered on valve body, valve inner is equipped with spool and valve seat, actuating unit is provided at the top of spool, actuating unit band movable valve plug is contacted or is detached with valve seat, drain charge hole is offered on valve seat, drain charge hole is connected with valve seat inner passage, and the sealing surface of spool and valve seat is located in the valve seat of the lower section in drain charge hole.
Description
Technical field
The utility model belongs to super-pressure relief valve technical field, more particularly to a kind of super-pressure relief valve.
Background technology
Super-pressure relief valve is vital component in extra-high tension unit container, while is also the higher portion of failure rate
Part.The structure of existing excess high pressure valves is：Including valve body, valve inner is equipped with the spool and valve seat of mutual cooperation, under valve body
Portion is feed liquor connector, the top suit actuating unit of valve body, and actuating unit drives valve core movement, complete with the sealing of valve seat and
Separation process.The cooperation of existing spool and valve seat is as shown in Figure 1 and Figure 2.During relief valve, actuating unit band movable valve plug moves upwards,
Spool is made to be detached with valve seat, spool and the valve seat time of releasing, the gap that high pressure water can be between spool and valve seat are quickly gone out, so
The discharge orifice discharge of rear valve base, as actuating unit continues to move, the needle below spool completely disengages valve seat, and pressure release is completed
Afterwards, actuating unit band movable valve plug moves downward, until completing to seal with valve seat.
Process is it is recognised that existing super-pressure relief valve mainly has following problem from the description above：1 is entire
In pressure leak process, the sealing surface of high pressure water meeting constant impingement spool, especially spool and the valve seat time of releasing, high pressure water can be to valve
The sealing surface of core causes irreversible damage, entire super-pressure relief valve is caused to be scrapped, at present the use of 600MPa excess high pressure valves
Service life is very short.2 be in pressure leak process, and the needle below spool can completely disengage valve seat, and when the two is again sealed off, spool easily blocks
Extremely in valve seat, when serious or even needle can be caused to fracture.The structural volume of 3 existing excess high pressure valves is larger, and heavier-weight makes
With inconvenience.4th, the outer drain port of traditional pressure-relief valve is fixed, the leakproofness of pressure-relief valve while installation maintenance difficulty
Difference can not meet 600MPa extra high voltage systems（Equipment）Reliability and durability requirement.
Utility model content
The utility model overcomes the shortcomings of the prior art, solve existing super-pressure relief valve service life it is short and
A kind of the problem of outer drain port cannot adjust, it is desirable to provide super-pressure relief valve.The super-pressure relief valve of the utility model, volume
Small, service life is long, by original tens more than 3000 times increased till now of service life, substantially improves pressure-relief valve with not
Present situation firmly, it is cost-effective, improve efficiency.
In order to solve the above technical problems, the technical solution adopted in the utility model is：Super-pressure relief valve, including valve body,
Discharge orifice is offered on valve body, valve inner is equipped with spool and valve seat, actuating unit, actuating unit band are provided at the top of spool
Movable valve plug is contacted or is detached with valve seat, and drain charge hole is offered on the valve seat, and drain charge hole is connected with valve seat inner passage, spool
In the valve seat of lower section for being located at drain charge hole with the sealing surface of valve seat.
Further, the quantity in the drain charge hole is two or is multiple.
Further, the drain charge hole is evenly distributed on the circumference of valve seat.
Further, the spool includes spool main body, and the top of spool main body is equipped with linkage section, linkage section and engine
Structure connects, and the lower section of spool main body is equipped with sealing guide section.
Further, the valve seat includes valve seat body, offers inner passage inside valve seat body, drain charge hole is located at valve
The middle and upper part of seat, the valve seat body below drain charge hole is equipped with and the matched valve base sealing section of seal spool guide section.
Further, the sealing guide section is round table-like, and the diameter for sealing the lower face of guide section is more than or equal to drain charge
The diameter of hole lower seat inner passage.
Further, the sealing guide section is stepped.
Further, the valve base sealing section is round table-like, and the taper of valve base sealing section is more than or equal to sealing guide section
Taper.
Further, the sealing guide section is stepped for two level, and the first rank is cylindric, in the lower seat of drain charge hole
Portion's channels be in accordance, second-order form sealing surface to be round table-like with valve base sealing section.
Further, the sealing guide section is stepped for three-level, and the first rank is cylindric, in the lower seat of drain charge hole
Portion's channels be in accordance, second-order and third rank for ladder it is round table-like, set in valve seat with the round table-like matched valve base sealing section of ladder,
The two cooperatively forms the sealing surface of spool and valve seat.
Further, the linkage section, sealing guide section and spool main body, which are integrally formed, makes.
Further, for the spool when axially moving reciprocatingly, the sealing guide section of spool does not depart from valve seat.
Further, the super-pressure relief valve further includes liquid release block, and liquid release block is sleeved on valve body and liquid
Body release block can carry out 360 ° of rotations around valve body, offer leaked liquid mouth on liquid release block, leaked liquid mouth passes through setting
Current by pass on valve body is connected with valve inner.
Further, the current by pass includes discharge orifice, and one end of discharge orifice is connected with valve inner, the other end and
It is opened in aerial drainage annular groove on valve body to be connected, position and the drain charge hole site of the discharge orifice match.
The utility model has the advantages that compared with prior art：The utility model changes existing super-pressure and lets out
The pressure release mode of pressure valve, can be reduced in pressure leak process, impact of the high pressure water to valve core sealed cover, so as to increase excess high pressure valves
Service life substantially improves unloading valve present situation incessantly, cost-effective, improves efficiency.
Description of the drawings：
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram that existing more advanced spool and valve seat coordinate.
Fig. 2 is domestic and international common spool and the schematic diagram of valve seat cooperation.
Fig. 3 is the structure diagram of the utility model.
Fig. 4 is enlarged drawing at B in Fig. 3.
Fig. 5 is the structure diagram of spool.
Fig. 6 is valve seat construction schematic diagram.
Fig. 7 is spool closed state schematic diagram
Fig. 8 is spool opening schematic diagram.
In figure：1 it is actuating unit, 2 is combination sealing, 3 is valve body, 31 is discharge orifice, 32 is aerial drainage annular groove, and 4 be valve
Core, 41 are spool main body, and 42 be linkage section, and 43 be sealing guide section, 5 are valve seat, 51 are valve seat body, and 52 be inner passage,
53 be drain charge hole, and 54 be valve base sealing section, and 6 discharge block for liquid, and 7 be leaked liquid mouth.
Specific embodiment
It is understandable for the purpose of this utility model, feature and advantage is enable to become apparent, below in conjunction with the accompanying drawings to this practicality
Novel specific embodiment is described in detail.
As Figure 3-Figure 4, super-pressure relief valve including valve body 3, offers discharge orifice 31 on valve body 3, inside valve body 3
Equipped with spool 4 and valve seat 5, the top of spool 4 is provided with actuating unit 1, is provided between the top of valve body 3 and actuating unit 1
Combination sealing 2, actuating unit 1 are contacted or are detached with valve seat 5 with movable valve plug 4, and drain charge hole 53, drain charge are offered on the valve seat 5
Hole 53 is connected with 5 inner passage 52 of valve seat, in the valve seat 5 of lower section that the sealing surface of spool 4 and valve seat 5 is located at drain charge hole 53.
The operation principle of the utility model：Actuating unit 1 moves axially upward with movable valve plug 4, and spool 4 divides with valve seat 5
From the sealing surface of the two is quickly opened, due to increasing drain charge hole 53, while the sealing position of spool 4 and valve seat 5 on valve seat 5
In the lower section in drain charge hole 53, the axial movement distance of spool 4 is shortened in this way, and spool 4 can be opened quickly, and high pressure water is from drain charge
Hole 53 is discharged, and is then discharged by the discharge orifice 31 on valve body 3, after the completion of pressure release, actuating unit 1 with movable valve plug 4 in an axial direction
It moves downward, until completing to seal with valve seat 5.
The moment only opened in entire pressure leak process can cause to impact to the sealing of spool 4, when spool 4 is opened completely
Afterwards, the sealing surface of spool 4 is higher than drain charge hole 53, and small water storage cavity can be formed between the bottom of spool 4 and drain charge hole 53, high
After water is pressed to be discharged from 5 inner passage 52 of valve seat, need by water storage cavity, the sealing surface of spool 4 will not be directly impacted, so as to subtract
Few impact of the high pressure water to spool 4 increases the service life of super-pressure relief valve.
It, can be by the quantitative design in drain charge hole 53 into two in order to which high pressure water is made rapidly to be discharged out of valve seat 5 channel
It is a or multiple.These drain charge holes 53 are evenly distributed on the circumference of valve seat 5.53 position of drain charge hole and 31 phase of discharge orifice on valve body 3
Matching, can ensure that high pressure water can be discharged quickly from 5 inner passage 52 of valve seat, spool 4 will not be caused to impact in this way, increase
Add the service life of spool 4.
On the basis of upper one embodiment, this implementation specifically discloses spool 4 and valve seat 5 more specifically structure：Such as
Spool 4 shown in Fig. 5 includes spool main body 41, and the top of spool main body 41 is equipped with linkage section 42, and linkage section 42 connects with actuating unit 1
It connects, the lower section of spool main body 41 is equipped with sealing guide section 43.
As shown in fig. 6, the structure of valve seat 5 is：Including valve seat body 51, inner passage is offered inside valve seat body 51
52, drain charge hole 53 is located at the middle and upper part of valve seat 5, and the valve seat body 51 of 53 lower section of drain charge hole is equipped with seals guide section with spool 4
43 matched valve base sealing sections 54.
The concrete structure of spool 4 and valve seat 5 is disclosed in the present embodiment, 4 top of spool is used for for linkage section 42 and power
Mechanism 1 connects, and spool 4 can be to be fixedly connected with the connection of actuating unit 1, or flexible connection can mainly be realized
The function of axially reciprocating.The sealing guide section 43 of spool 4, that is, the partial valve needle of existing spool 4, spool 4 exist
When axially moving reciprocatingly, the sealing guide section 43 of spool 4 does not depart from valve seat 5.This makes it possible to effectively avoid spool 4 and valve seat
When sealing repeatedly for more than 5 times, spool 4 is easily stuck in valve seat 5 or even the phenomenon that needle is caused to fracture.
On the basis of last embodiment, in order to increase the service life of spool 4, high pressure water is reduced to 4 sealing surface of spool
Impact, will sealing guide section 43 be designed as it is round table-like, seal guide section 43 lower face diameter be more than or equal to drain charge hole 53
The diameter of 5 inner passage 52 of lower seat.
When seal guide section 43 diameter be more than 53 lower seat of drain charge hole, 5 inner passage 52 diameter when, high pressure water from
The flow diameter sprayed in valve seat 5 is less than the diameter of 43 lower face of sealing guide section, and high pressure water can only impact the lower end of spool 4
Face, such high pressure water would not cause directly to impact to the sealing surface of spool 4, the effective protection sealing surface of spool 4, so as to increase
Add the service life of spool 4 and valve seat 5.
In addition, the sealing surface between spool 4 and valve seat 5 can be carried out according to actual conditions, and can be that face seals, it can also
For linear sealing, the taper of the taper and sealing guide section 43 of valve base sealing section 54 is adjusted according to actual conditions, so as to adjust the two
Seal form.
In another specific embodiment, the structure of spool 4 is：The sealing guide section 43 of spool 4 is stepped for two level,
First rank is cylindric, is matched with 53 lower seat of drain charge hole, 5 inner passage 52, and second-order is round table-like and valve base sealing section
54 form sealing surface.
Spool 4 is sealed guide section 43 on the basis of upper one embodiment, and to be designed as three-level stepped, and the first rank is circle
Column matches with 53 lower seat of drain charge hole, 5 inner passage 52, and second-order and third rank are round table-like for ladder, are set in valve seat 5
With the round table-like matched valve base sealing section 54 of ladder, the two cooperatively forms the sealing surface of spool 4 and valve seat 5.
Both the above embodiment is to design spool 4 multistage stepped, and the purpose designed in this way is to reduce as far as possible
Impact of the high pressure water to 4 sealing surface of spool, so as to promote the service life of spool 4.Transformation in this structure type belongs to
In the scope of protection of the utility model.In addition, in order to promote the structural strength of spool 4, simplify structure, the linkage section 42 of spool 4,
It seals guide section 43 and is integrally formed making with spool main body 41.
Several embodiments have been described in detail a variety of variations of spool 4 and valve seat 5 above, the following examples
Be in order to solve the problems, such as that super-pressure relief valve cannot adjust outer drain port direction on the basis of above-described embodiment, it is specific open with
Lower structure：Super-pressure relief valve further includes liquid release block 6, and liquid release block 6 is sleeved on valve body 3 and liquid release block 6 can
360 ° of rotations are carried out around valve body 3, offer leaked liquid mouth 7 on liquid release block 6, leaked liquid mouth 7 is by being arranged on valve body 3
On current by pass and valve body 3 inside be connected.
The current by pass includes discharge orifice 31, is connected inside one end of discharge orifice 31 and valve body 3, the other end is with opening up
Aerial drainage annular groove 32 is connected on valve body 3, and position and 53 position of drain charge hole of the discharge orifice 31 match.
When needing to adjust outer drain port, it is only necessary to which rotating liquid release block 6 can achieve the goal, and high pressure water passes through successively
Then the drain charge hole 53 of valve seat 5, the discharge orifice 31 of valve body 3, aerial drainage annular groove 32 are sprayed from leaked liquid mouth 7, entire pressure release fortune
Row is steady reliable.
There is no actuating unit 1 to be described in detail in the utility model, actuating unit 1 can be hydraulic mechanism, electronic
Mechanism, pneumatic mechanism do not limit the form of actuating unit 1 in the utility model, as long as can realize that band movable valve plug 4 carries out axis
To the function of reciprocating motion.
In conclusion the utility model by the service life of relief valve from tens times to promoting till now more than 3000 times,
Relief valve present situation incessantly is substantially improved, cost-effective, frangibility when improving efficiency, while also solving the sealing of spool 4
It is easily stuck in valve seat 5 and the problem of needle below spool 4 is caused to damage for high pressure water impact spool 4 with spool 4.
The embodiments of the utility model have been described in detail above with reference to the accompanying drawings, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of various changes can be made.
Claims (12)
1. super-pressure relief valve, including valve body（3）, valve body（3）On offer discharge orifice（31）, valve body（3）It is internally provided with spool
（4）And valve seat（5）, spool（4）Top be provided with actuating unit（1）, actuating unit（1）Band movable valve plug（4）With valve seat（5）It connects
It touches or detaches, it is characterised in that：The valve seat（5）On offer drain charge hole（53）, drain charge hole（53）With valve seat（5）Inner passage
（52）It is connected, spool（4）With valve seat（5）Sealing surface be located at drain charge hole（53）Lower section valve seat（5）It is interior.
2. super-pressure relief valve according to claim 1, it is characterised in that：The drain charge hole（53）Quantity for 2 or
It is 4, the drain charge hole（53）It is evenly distributed on valve seat（5）Circumference on.
3. super-pressure relief valve according to claim 1, it is characterised in that：The spool（4）Including spool main body（41）,
Spool main body（41）Top be equipped with linkage section（42）, linkage section（42）With actuating unit（1）Connection, spool main body（41）Under
Side is equipped with sealing guide section（43）.
4. super-pressure relief valve according to claim 3, it is characterised in that：The valve seat（5）Including valve seat body（51）,
Valve seat body（51）Inside offers inner passage（52）, drain charge hole（53）Positioned at valve seat（5）Middle and upper part, drain charge hole（53）Under
The valve seat body of side（51）It is equipped with the sealing guide section with spool（43）Matched valve base sealing section（54）.
5. super-pressure relief valve according to claim 3, it is characterised in that：The sealing guide section（43）To be round table-like,
Seal guide section（43）Lower face diameter be more than or equal to drain charge hole（53）Lower seat（5）Inner passage（52）Diameter.
6. super-pressure relief valve according to claim 3, it is characterised in that：The sealing guide section（43）It is stepped.
7. super-pressure relief valve according to claim 4, it is characterised in that：The valve base sealing section（54）To be round table-like,
Valve base sealing section（54）Taper be more than or equal to sealing guide section（43）Taper.
8. super-pressure relief valve according to claim 6, it is characterised in that：The sealing guide section（43）For two level ladder
Shape, the first rank is cylindric, with drain charge hole（53）Lower seat（5）Inner passage（52）Match, second-order for it is round table-like with
Valve seat（5）Seal section forms sealing surface.
9. super-pressure relief valve according to claim 6, it is characterised in that：The sealing guide section（43）For three-level ladder
Shape, the first rank is cylindric, with drain charge hole（53）Lower seat（5）Inner passage（52）Match, second-order and third rank are
Ladder is round table-like, valve seat（5）It inside sets and the round table-like matched valve seat of ladder（5）Seal section, the two cooperatively form spool（4）With valve
Seat（5）Sealing surface.
10. super-pressure relief valve according to claim 3, it is characterised in that：The spool（4）It moves reciprocatingly axially
When, spool（4）Sealing guide section（43）Valve seat is not departed from（5）.
11. super-pressure relief valve according to claim 3, it is characterised in that：Further include liquid release block（6）, liquid releases
Put block（6）It is sleeved on valve body（3）Upper and liquid release block（6）It can be around valve body（3）Carry out 360 ° of rotations, liquid release block（6）On
Offer leaked liquid mouth（7）, leaked liquid mouth（7）By being arranged on valve body（3）On current by pass and valve body（3）Internal phase
Connection.
12. super-pressure relief valve according to claim 11, it is characterised in that：The current by pass includes discharge orifice
（31）, discharge orifice（31）One end and valve body（3）Inside is connected, and the other end is with being opened in valve body（3）Upper aerial drainage annular groove
（32）It is connected, the discharge orifice（31）Position and drain charge hole（53）Position matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738185.1U CN207598949U (en) | 2017-12-14 | 2017-12-14 | Super-pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738185.1U CN207598949U (en) | 2017-12-14 | 2017-12-14 | Super-pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598949U true CN207598949U (en) | 2018-07-10 |
Family
ID=62764596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721738185.1U Active CN207598949U (en) | 2017-12-14 | 2017-12-14 | Super-pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842615A (en) * | 2017-12-14 | 2018-03-27 | 山西三水河科技股份有限公司 | Super-pressure relief valve |
| CN111827927A (en) * | 2020-07-08 | 2020-10-27 | 成都天晨压缩机制造有限公司 | Liquid impact prevention device of equipment for gathering and transporting liquid-containing oil wellhead gas in desert oil field |
-
2017
- 2017-12-14 CN CN201721738185.1U patent/CN207598949U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842615A (en) * | 2017-12-14 | 2018-03-27 | 山西三水河科技股份有限公司 | Super-pressure relief valve |
| CN111827927A (en) * | 2020-07-08 | 2020-10-27 | 成都天晨压缩机制造有限公司 | Liquid impact prevention device of equipment for gathering and transporting liquid-containing oil wellhead gas in desert oil field |
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