CN209511206U - A kind of constant pressure valve - Google Patents
A kind of constant pressure valve Download PDFInfo
- Publication number
- CN209511206U CN209511206U CN201821849060.0U CN201821849060U CN209511206U CN 209511206 U CN209511206 U CN 209511206U CN 201821849060 U CN201821849060 U CN 201821849060U CN 209511206 U CN209511206 U CN 209511206U
- Authority
- CN
- China
- Prior art keywords
- valve
- constant pressure
- spool
- thimble
- tightening apparatus
- 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.)
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- 239000000463 material Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 5
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 238000005457 optimization Methods 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000001514 detection method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model provides a kind of constant pressure valve, including valve body, constant pressure component is provided at the head center position of the valve body, the constant pressure component includes the diaphragm, thimble and pre-tightening apparatus on closeding valve cavity top, the upper ice crystal diaphragm that the pre-tightening apparatus is located at diaphragm compresses the thimble, the pre-tightening apparatus includes loop buffer chamber and the intracavitary helical form elastic ring of the loop buffer is arranged in, and several conflict points of the two sides of the helical form elastic ring are resilient conflict cooperation with the valve interior wall respectively.The optimization design of pre-tightening apparatus, so that structure is simpler, the pressure of relevant device can be better balanced in the wherein setting of helical form elastic ring.
Description
Technical field
The utility model relates to safety valve field more particularly to a kind of constant pressure valves.
Background technique
In necks such as power plant, the raw water of petrochemical industry, Boiler High Pressure water supply, the defeated dehydration system of collection and waste water treatment systems
Domain, usual hydraulic pressure with higher need to carry out reduced pressure treatment when carrying out the conveying and water quality detection of water.Especially to height
The on-line period of warm sample water is analyzed, and for guaranteeing the quality of water and steam, preventing the equipment corrosion and scaling such as boiler, drum from being must not
It can less, and be the premise item of analysis, detection of running continuous samples to the cooling of the sample water under the condition of high temperature, reduced pressure treatment
Therefore in such system, pressure reducing valve can be arranged in part.
However, the accuracy in order to guarantee on-line period analysis, part water quality detection instrument require the detection water sample provided
Discharge pressure with constant pressure, and above-mentioned pressure reducing valve can the above-mentioned fluctuation with the variation of intake pressure, not being able to satisfy makes
With demand, need that constant-voltage equipment in addition is arranged.And under the premise of conventional constant pressure valve water outlet constant pressure, although also can influent pressure overcome
The certain decompression of the heart is adjusted, but its reduced pressure capabilities is weak, is only used for the hydraulic pressure in water heater such as and is depressurized, can not be simultaneously for such as
The decompression of high temperature and pressure sample water.Need just to be able to satisfy the demand of sample water sampling using pressure reducing valve and constant pressure valve simultaneously.
Utility model content
The utility model provides a kind of constant pressure valve, and it is an object of the present invention to provide a kind of perseverance that can more preferably balance relevant device pressure
Pressure valve.
In order to achieve the above object, the technical solution provided is as follows:
A kind of constant pressure valve, including valve body are provided with constant pressure component, the constant pressure group at the head center position of the valve body
Part includes the diaphragm, thimble and pre-tightening apparatus on closeding valve cavity top, the upper end of the thimble lower end compression spool mandril, on thimble
End and the film contact, the upper ice crystal diaphragm that the pre-tightening apparatus is located at diaphragm compress the thimble, the pre-tightening apparatus packet
It includes loop buffer chamber and the intracavitary helical form elastic ring of the loop buffer is set, the two sides of the helical form elastic ring
Several conflict points are resilient conflict cooperation with the valve interior wall respectively；The center position of valve body is provided with spool, the valve
Core is connect with the mandril being arranged in valve body tail portion, and gasket bolt is provided between the mandril and the spool.
Further, the spool includes spool main body, valve seat and valve core spring, and the spool main body and valve seat are to weld
It taps into row to be connected and fixed, the spool body interior is formed with accommodating chamber, and the valve core spring is set in accommodating chamber, the valve
Core spring has precompressed position-limiting action to spool.
Further, the valve seat center upper portion is equipped with the fluid channel of connection spool accommodating chamber.
Further, spool main body upper end is formed with the conical surface, and decompression is constituted between the conical surface and the valve body
Gap.
Further, it is equipped with filter core in the spool accommodating chamber, is equipped with strainer at the fluid channel inlet.
Further, valve closing spring is provided on the mandril.
Further, constant pressure sealing ring is provided between the constant pressure component and spool.
Further, all sealing element materials are made of PEEK material.
The utility model has the advantages that especially wherein being increased pre- to the optimization of pre-tightening apparatus by the optimization design to constant pressure component
Tight spring and thimble and compress gasket, can be better balanced the pressure of relevant device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1- valve body, 2- helical form elastic ring, 3- spool, 4- valve seat, 5- gasket bolt, 6- valve closing spring, the top 7-
Bar, 31- strainer, 32- filter core, 33- spool main body.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, implement below in conjunction with attached drawing machine
Example, is explained in further detail the utility model, it should be understood that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of constant pressure valve, including valve body 1 are provided with constant pressure component, the constant pressure at the head center position of the valve body 1
Component includes the diaphragm, thimble and pre-tightening apparatus on closeding valve cavity top, and the thimble lower end compresses the upper end of spool mandril, thimble
Upper end and the film contact, the top that the pre-tightening apparatus is located at diaphragm compresses the thimble, the pre-tightening apparatus through diaphragm
Including loop buffer chamber and the intracavitary helical form elastic ring 2 of the loop buffer is set, the two of the helical form elastic ring 2
Several conflict points of side are resilient conflict cooperation with 1 inner wall of valve body respectively；The center position of valve body 1 is provided with spool 3,
The spool 3 is connect with the mandril 7 being arranged in 1 tail portion of valve body, is provided with gasket between the mandril 7 and the spool 3
Bolt 5.
The spool includes spool main body 33, valve seat and valve core spring, the spool main body 33 and valve seat with weld into
Row is connected and fixed, and accommodating chamber is formed with inside the spool main body 33, the valve core spring is set in accommodating chamber, the spool
Spring has precompressed position-limiting action to spool.The valve seat center upper portion is equipped with the fluid channel of connection spool accommodating chamber.The valve
33 upper end of core main body is formed with the conical surface, and decompression gap is constituted between the conical surface and the valve body.It is set in the spool accommodating chamber
There is filter core 32, is equipped with strainer 31 at the fluid channel inlet.Valve closing spring 6 is provided on the mandril.The constant pressure
Constant pressure sealing ring is provided between component and spool.All sealing element materials are made of PEEK material.
The utility model has the advantages that especially wherein being increased pre- to the optimization of pre-tightening apparatus by the optimization design to constant pressure component
Tight spring and thimble and compress gasket, can be better balanced the pressure of relevant device.
Claims (8)
1. a kind of constant pressure valve, including valve body, which is characterized in that constant pressure component is provided at the head center position of the valve body,
The constant pressure component includes the diaphragm, thimble and pre-tightening apparatus on closeding valve cavity top, and the thimble lower end compresses spool mandril
Upper end, thimble upper end and the film contact, the top that the pre-tightening apparatus is located at diaphragm compresses the thimble through diaphragm, described
Pre-tightening apparatus includes loop buffer chamber and the intracavitary helical form elastic ring of the loop buffer is arranged in, and the helical form is elastic
Several conflict points of the two sides of circle are resilient conflict cooperation with the valve interior wall respectively；The center position of valve body is provided with valve
Core, the spool are connect with the mandril being arranged in valve body tail portion, and gasket spiral shell is provided between the mandril and the spool
Bolt.
2. a kind of constant pressure valve according to claim 1, which is characterized in that the spool include spool main body, valve seat and
Valve core spring, the spool main body and valve seat are attached fixation to weld, and the spool body interior is formed with accommodating chamber, institute
It states valve core spring to be set in accommodating chamber, the valve core spring has precompressed position-limiting action to spool.
3. a kind of constant pressure valve according to claim 2, which is characterized in that the valve seat center upper portion is equipped with connection spool and holds
Receive the fluid channel of chamber.
4. a kind of constant pressure valve according to claim 2, which is characterized in that spool main body upper end is formed with the conical surface,
Decompression gap is constituted between the conical surface and the valve body.
5. a kind of constant pressure valve according to claim 3, it is characterised in that: filter core is equipped in the spool accommodating chamber, it is described
Strainer is equipped at fluid channel inlet.
6. a kind of constant pressure valve according to claim 1, it is characterised in that: be provided with valve closing spring on the mandril.
7. a kind of constant pressure valve according to claim 1, it is characterised in that: be provided between the constant pressure component and spool
Constant pressure sealing ring.
8. -7 any a kind of constant pressure valve according to claim 1, which is characterized in that all sealing element materials are by PEEK material
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849060.0U CN209511206U (en) | 2018-11-09 | 2018-11-09 | A kind of constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849060.0U CN209511206U (en) | 2018-11-09 | 2018-11-09 | A kind of constant pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209511206U true CN209511206U (en) | 2019-10-18 |
Family
ID=68192233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821849060.0U Active CN209511206U (en) | 2018-11-09 | 2018-11-09 | A kind of constant pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209511206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110177602A (en) * | 2017-01-12 | 2019-08-27 | 德国美力有限两合公司 | Constant pressure valve and alarm valve station and self-extinguishing equipment with constant pressure valve |
-
2018
- 2018-11-09 CN CN201821849060.0U patent/CN209511206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110177602A (en) * | 2017-01-12 | 2019-08-27 | 德国美力有限两合公司 | Constant pressure valve and alarm valve station and self-extinguishing equipment with constant pressure valve |
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| GR01 | Patent grant | ||
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