CN205479568U - Relief pressure valve of high reliability - Google Patents
Relief pressure valve of high reliability Download PDFInfo
- Publication number
- CN205479568U CN205479568U CN201620198507.7U CN201620198507U CN205479568U CN 205479568 U CN205479568 U CN 205479568U CN 201620198507 U CN201620198507 U CN 201620198507U CN 205479568 U CN205479568 U CN 205479568U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- high reliability
- air relief
- decompressor
- 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 relief pressure valve of high reliability, this relief pressure valve include the valve body, set up mechanism of decompressor in the valve body, set up the upper cover on the valve body and set up at the last adjusting device who covers, is provided with the air current runner in the disk seat nut in the mechanism of decompressor, and the gas outlet orientation of this air current runner is the diaphragm towards the mechanism of decompressor in not. This relief pressure valve, its stability is more superior, and product reliability is higher, and the inefficacy risk is littleer, the problem effectively solving prior art and exist.
Description
Technical field
This utility model relates to a kind of valve, is specifically related to a kind of air relief valve.
Background technology
The most multi-field it is frequently necessary to uses different gas, and as industrial gases weld, control laboratory is checked,
The field such as semicon industry or food packing industry.For storage and convenient transportation, gas is typically to be stored by compression
In gas cylinder, as desired by air relief valve, gas pressure need to be reduced to using desirable pressure during use.
Big portion gas pressure store is the highest, more than 15MPa, and actually used pressure is only less than 1MPa,
Inlet and outlet pressure difference is relatively big, and the seal request of valve seat is high, for ensureing to seal reliably, the most all uses soft seal
Structure.Seeing Fig. 1, it show the structure of current valve base sealing structure preferably typical case's air relief valve, mainly
Including: valve body (1), valve base sealing (2), valve seat nut (3), valve rod (4), valve stem sleeve (5), valve rod reset bullet
Spring (6), diaphragm (7), membrane baffle (8), pressure spring (9), upper cover (10), the building block such as adjusting tap (11).
The air relief valve thus constituted, it is by the dynamic balance of the pressure sensitive on diaphragm (7) surface with pressure spring (9)
Relation, controls the aperture of valve rod, uses output pressure to be held essentially constant.
Seeing Fig. 2, it show valve rod in Fig. 1 (4) and valve base sealing (2), valve seat nut (3) and diaphragm (7)
The enlarged drawing of fit structure.As seen from the figure, existing air relief valve is primarily present problems with:
One, valve rod one end is to float, and by by the high speed airflow influence of valve seat during work, easily causes valve
Bar (3) produces vibration, affects properties of product stable.
Its two, high velocity air is by after valve seat, and direct frontal impact, on diaphragm (7), is shown in valve seat spiral shell in Fig. 2
Female (3) place arrow.Owing to high speed gas is fluctuation, the power on diaphragm that impacts also is fluctuation, membrane surface
On sensing fluctuate the most therewith, affect the stability of output pressure, it addition, high velocity air may be carried secretly miscellaneous
Matter, the high speed impact of band impurity can be worn and torn diaphragm, affects the life-span of product, even cause diaphragm broken wait serious
Accident, potential failure risk is bigger.
Utility model content
For the problem that existing air relief valve is existing in stability, main purpose of the present utility model exists
In providing, a kind of stability is superior, the air relief valve that reliability is high.
In order to achieve the above object, this utility model adopts the following technical scheme that:
A kind of air relief valve of high reliability, described air relief valve include valve body, the mechanism of decompressor being arranged in valve body,
The upper cover that is arranged on valve body and be arranged on the adjusting means covered, the valve seat spiral shell in the described mechanism of decompressor
Being provided with airflow path in mother, the direction, gas outlet of described airflow path is not towards the diaphragm in the mechanism of decompressor.
Preferably, the valve rod in the mechanism of decompressor is formed and guides and support by the top of described valve seat nut.
Preferably, the direction, gas outlet of described airflow path and the air inlet direction of airflow path are vertical.
Preferably, the gas outlet of described airflow path is arranged on the sidewall of valve seat nut.
Preferably, also including a valve base sealing pressing plate in the described mechanism of decompressor, described valve base sealing pressing plate is arranged
Between valve seat nut and valve base sealing.
Preferably, described valve base sealing pressing plate is circular.
The air relief valve constituted based on such scheme, its stability is more superior, and product reliability is higher, loses
Effect risk is less, effectively solves the problem existing for prior art.
Accompanying drawing explanation
This utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of existing gas pressure reducer；
Fig. 2 is the enlarged drawing of valve rod scheme in gas pressure reducer shown in Fig. 1；
Fig. 3 is the structural representation of gas pressure reducer in this example；
Fig. 4 is the enlarged drawing of valve rod scheme in gas pressure reducer shown in Fig. 3.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be readily apparent from effect
Understand, below in conjunction with being specifically illustrating, this utility model is expanded on further.
This example provide gas pressure reducer, its retain original valve seat construction advantage, do not change overall dimensions,
In the case of circulation area, by changing the internal structure of valve seat nut 3, make by valve base sealing 2 with this
After high velocity air change direction, direct Impact Diaphragm 7, reduce diaphragm 7 and impacted, thus carry
Stable, the reliability of high gas decompression valve performance and extend its service life.
Seeing Fig. 3, it show the gas pressure reducer of the new valve seat construction constituted based on above-mentioned principle.By scheming
Understanding, this air relief valve is identical with existing gas pressure reducer basic structure, mainly includes valve body 1, and valve seat is close
Envelope 2, valve seat nut 3, valve rod 4, valve stem sleeve 5, valve rod back-moving spring 6, diaphragm 7, membrane baffle 8,
Pressure spring 9, upper cover 10, adjusting tap 11.
Wherein, valve body 1 is a three-port structure, is provided with air inlet and gas outlet, is used for connecting high pressure
Source of the gas and low pressure gas equipment.
Valve seat nut 3 is placed in valve body 1 by what valve base sealing 2 sealed, and valve rod 4 assigns into valve seat
Between nut 3 and valve body 1, its one end is assigned in valve body 1 by valve rod back-moving spring 6, and the other end is worn
Cross valve seat nut 3 to coordinate with diaphragm 7, to realize the regulation of air-flow.
Upper cover 10 is placed in the top of valve body 1, and it is internally provided with pressure spring 9, the one of pressure spring 9
End is coordinated with the top of valve rod 4 by membrane baffle 8 driven diaphragm 7, and the other end coordinates with adjusting tap 11.
Adjusting tap 11, it is set in upper cover 10, and coordinates with the pressure spring 9 in upper cover 10.
Above-mentioned structural principle is same as the prior art, i.e. by the pressure sensitive on diaphragm 7 surface and pressure regulation
The dynamic balance relation of spring 9, controls the aperture of valve rod 4, uses output pressure to be held essentially constant.For
The construction features of each building block and matching relationship, be not repeated here.
On this basis, the airflow path within valve seat nut 3 is improved by this example, close by valve seat
High velocity air after envelope 2 changes direction, not direct Impact Diaphragm 7, reduces diaphragm 7 and is impacted；Simultaneously
Make valve rod constrained, it is to avoid because high speed airflow influence produces vibration.Referring specifically to Fig. 4:
The overall structure of valve seat nut 3 is identical with existing structure, offers corresponding airflow path inside it, should
The air inlet of airflow path is arranged on the bottom of valve seat nut 3, and the gas outlet of airflow path is arranged on valve
Seat nut 3 on and opening direction not region be directly facing diaphragm 7, connected by airflow path between the two.
In this example, the air inlet of valve seat nut 3 is specially counterbore, disposes valve base sealing 2 in this counterbore,
Between valve base sealing 2 and valve seat nut 3, the most further set up valve base sealing pressing plate A, this valve seat simultaneously
Sealing clamp A is the most circular, and it coordinates with valve base sealing 2, forms good sealing member, and overall
It is placed in counterbore, constitutes corresponding air inlet, hold valve rod 4 simultaneously and pass and coordinate with valve rod 4, to entering
The openings of sizes of QI KOU is adjusted.
For the gas outlet of valve seat nut 3, specifically arranging multiple gas outlet, these gas outlets are along valve seat nut
3 tops being circumferentially provided on valve seat nut 3 sidewall so that the opening direction of gas outlet and the opening of air inlet
Direction is vertical, the most parallel with diaphragm 7, so that the gas outlet of airflow path not region be directly facing diaphragm 7.
On the basis of, owing to gas outlet is laterally disposed, the top of valve seat nut 3 will be a solid surfaces, for
Being easy to valve rod 4 upper end passes, and the top of this valve seat nut 3 will offer a through hole coordinated with valve rod 4,
Hold valve rod 4 to pass.
The valve seat nut 3 thus arranged, is coordinated with airflow path by laterally disposed gas outlet so that warp
Cross air inlet high velocity air from lower to upper, change at gas outlet and flow to, flow from the side of valve seat nut 3
Go out valve seat nut 3, not direct Impact Diaphragm 7, reduce diaphragm 7 and (seen valve seat spiral shell in Fig. 4 by impact
Arrow at female 3)；The most in this process, valve rod 4 upper end will be formed and lead by the top of valve seat nut 3
To support, make valve rod 4 not by by the high speed airflow influence of valve seat, do not produce vibration, it is ensured that the property of product
(seeing Fig. 4) can be stablized.
The gas pressure reducer scheme that this example provides, only by the improvement to valve seat nut interior structure, is protecting
On the premise of staying original valve base sealing feature and runner size, make valve rod constrained, it is to avoid because of high velocity air shadow
Ring and produce vibration, effectively overcome that valve rod is issuable in high velocity air to shake；High velocity air is guided simultaneously,
Change the flow direction of high velocity air, be not directly impinging on diaphragm, it is to avoid diaphragm is produced impact, by right
Diaphragm impact and infringement are reduced to minimum, reduce potential diaphragm failure risk.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.
Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-described embodiment
With description described in principle of the present utility model is simply described, without departing from this utility model spirit and model
On the premise of enclosing, this utility model also has various changes and modifications, and these changes and improvements both fall within requirement
In the range of this utility model of protection.This utility model claim scope by appending claims and
Equivalent defines.
Claims (6)
1. an air relief valve for high reliability, described air relief valve includes valve body, the decompression being arranged in valve body
Mechanism, the upper cover being arranged on valve body and be arranged on the adjusting means covered, it is characterised in that described
Valve seat nut in the mechanism of decompressor is provided with airflow path, the direction, gas outlet of described airflow path not towards
Diaphragm in the mechanism of decompressor.
The air relief valve of a kind of high reliability the most according to claim 1, it is characterised in that described valve
Valve rod in the mechanism of decompressor is formed and guides and support by the top of seat nut.
The air relief valve of a kind of high reliability the most according to claim 1, it is characterised in that described gas
The direction, gas outlet of stream runner is vertical with the air inlet direction of airflow path.
The air relief valve of a kind of high reliability the most according to claim 1, it is characterised in that described gas
The gas outlet of stream runner is arranged on the sidewall of valve seat nut.
The air relief valve of a kind of high reliability the most according to claim 1, it is characterised in that described in subtract
Also including a valve base sealing pressing plate in press mechanism, described valve base sealing pressing plate is arranged on valve seat nut and valve seat is close
Between envelope.
The air relief valve of a kind of high reliability the most according to claim 5, it is characterised in that described valve
Seat sealing clamp is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620198507.7U CN205479568U (en) | 2016-03-15 | 2016-03-15 | Relief pressure valve of high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620198507.7U CN205479568U (en) | 2016-03-15 | 2016-03-15 | Relief pressure valve of high reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479568U true CN205479568U (en) | 2016-08-17 |
Family
ID=56656475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620198507.7U Active CN205479568U (en) | 2016-03-15 | 2016-03-15 | Relief pressure valve of high reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479568U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119683A (en) * | 2017-12-18 | 2018-06-05 | 捷锐企业(上海)有限公司 | A kind of valve core structure and pressure reducing valve |
| CN108518525A (en) * | 2018-04-13 | 2018-09-11 | 捷锐企业(上海)有限公司 | A kind of heat dissipation type pressure reducing valve |
| CN109667967A (en) * | 2018-12-28 | 2019-04-23 | 捷锐企业(上海)有限公司 | Bellows diaphragm type high-cleanness high-pressure pressure-reducing valve |
| CN115749981A (en) * | 2022-10-24 | 2023-03-07 | 东方电气集团东方汽轮机有限公司 | Tangential air intake and exhaust valve |
-
2016
- 2016-03-15 CN CN201620198507.7U patent/CN205479568U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119683A (en) * | 2017-12-18 | 2018-06-05 | 捷锐企业(上海)有限公司 | A kind of valve core structure and pressure reducing valve |
| CN108518525A (en) * | 2018-04-13 | 2018-09-11 | 捷锐企业(上海)有限公司 | A kind of heat dissipation type pressure reducing valve |
| CN108518525B (en) * | 2018-04-13 | 2020-03-27 | 捷锐企业(上海)有限公司 | Heat dissipation formula relief pressure valve |
| CN109667967A (en) * | 2018-12-28 | 2019-04-23 | 捷锐企业(上海)有限公司 | Bellows diaphragm type high-cleanness high-pressure pressure-reducing valve |
| CN115749981A (en) * | 2022-10-24 | 2023-03-07 | 东方电气集团东方汽轮机有限公司 | Tangential air intake and exhaust valve |
| CN115749981B (en) * | 2022-10-24 | 2024-05-07 | 东方电气集团东方汽轮机有限公司 | Tangential air inlet and outlet valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205479568U (en) | Relief pressure valve of high reliability | |
| CN104405939B (en) | A kind of three-level pressure reducer | |
| CN105697829A (en) | Automatic air compensation device | |
| CN101520063B (en) | Constant-pressure water evaporator suitable for aerospace craft | |
| CN202116308U (en) | Small device for producing nitrogen | |
| CN201407248Y (en) | Constant pressure water evaporator applicable to aerospace vehicle | |
| CN104500111B (en) | Two-stage open-type high-flow safety valve | |
| CN204337931U (en) | Wet method equipment moisture separation device | |
| MX2013010531A (en) | Flowmeter. | |
| CN206398141U (en) | A kind of pressure-adjustable prevents backflow-type inflation valve device | |
| CN204605843U (en) | A kind of have the anti-gas path plate crossing laminated structure | |
| CN207285876U (en) | A kind of micro- formula relief valve of spring for pressure cooker | |
| CN206429681U (en) | A kind of rectangle quick action emergency valve of electrical engineering | |
| CN206234424U (en) | A kind of main voltage regulator device being applied in gas pressure regulating mechanism | |
| CN206647585U (en) | Fluorine-lined negative pressure of vacuum safety valve | |
| CN201909077U (en) | Pressure-stabilization self-regulation valve | |
| CN205308471U (en) | Gaseous vacuum seal device of ball -milling jar usefulness | |
| CN203833609U (en) | High-integration-level oxygenerator adsorption column upper cover inlet gas denitrogenation system | |
| CN103742312B (en) | A kind of air filter | |
| CN204328101U (en) | A kind of inhalation valve | |
| CN103736330B (en) | A kind of air filter | |
| CN107504268A (en) | Gas pipeline support frame easy to install | |
| CN204568277U (en) | A kind of wine jar breathing valve | |
| CN204502720U (en) | A kind of adsorbing tower with molecular sieve | |
| CN210661412U (en) | Small flow regulating valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |