CN103032611B - A kind of have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action - Google Patents
A kind of have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action Download PDFInfo
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- CN103032611B CN103032611B CN201210535387.1A CN201210535387A CN103032611B CN 103032611 B CN103032611 B CN 103032611B CN 201210535387 A CN201210535387 A CN 201210535387A CN 103032611 B CN103032611 B CN 103032611B
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Abstract
The present invention relates to a kind of spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action of having, this supporting structure is made up of pallet, pressure ring, clamp sleeve and main spring seat, can play limiting diaphragm axial deflection and diaphragm be carried out to the effect of centering adjustment; The upper bottom surface of spring seat body is pressed on the bottom surface of upper clamp sleeve by the free end of spring, and the upper bottom surface of pallet contacts with face in the middle part of diaphragm; In working procedure, diaphragm bears the backward lower upset of pressure, and the bottom surface on pallet top contacts with the upper bottom surface of upper clamp sleeve, and the upper bottom surface of spring seat body and the bottom surface of tight sleeve are thrown off.In this process, spring seat head contacts all the time with pallet bottom surface ball-and-socket.The present invention is applicable to support various metal, nonmetal diaphragm, and this structure also has high temperature resistant (≯ 700K), corrosion resistant feature, is particularly suitable for highi degree of accuracy, high temperature and corrosive gas medium reduction valve, reusable through simple-to-maintain.
Description
Technical field
The present invention relates to a kind of spacing and pressure reducing valve membrane sheet supporting structure that is centering regulating action of having, be particularly suitable for highi degree of accuracy, high temperature (≯ 700K) gas pressure reducer.
Background technique
High temperature (gas) reduction valve is present in various high temperature gas medium work system, for regulating and stable system pressure.High temperature (gas) reduction valve as the pressure adjusting part of system, the service behaviour of the direct influential system of its performance and reliability.Be subject to the restriction of applied at elevated temperature condition, reduction valve sensing element many employings metal diaphragm, but metal diaphragm easily overturns excessively generation plastic deformation or structural damage.
Summary of the invention
Excessively there is the technical problem of plastic deformation or structural damage for solving diaphragm upset, the invention provides a kind of can to diaphragm axially under maximum deformation quantity limit, the diaphragm support structure of centering adjustment can be carried out again to diaphragm and main spring.
Technical solution of the present invention is as follows:
Have a spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action, its special way is: comprise pressure ring 7, pallet 3, clamp sleeve 4, main spring seat 5, spring 6,
The edge of diaphragm 1 is pressed on valve body 2 by described pressure ring 7,
Described clamp sleeve 4 is divided into clamp sleeve 41 and lower clamp sleeve 42 two-part, and the diameter of bore of described upper clamp sleeve 41 is less than the diameter of bore of lower clamping sleeve 42, and the outer wall diameter of described upper clamp sleeve 41 is less than the outer wall diameter of lower clamping sleeve 42; The internal face of described upper clamp sleeve 41 and the outer wall of pallet 3 suitable, the bottom of the ring shoulder that described upper clamp sleeve 41 and lower clamp sleeve 42 are formed and pressure ring 7 is suitable, and outer wall and valve body 2 endoporus of described lower clamp sleeve 42 are suitable;
Described main spring seat comprises spring seat body 52 and spring seat head 51,
When diaphragm does not overturn, the upper bottom surface of spring seat body 51 is pressed on the bottom surface of upper clamp sleeve 41 by the free end of described spring 6, and described spring seat head 51 contacts with in the middle part of pallet 3 bottom surface, and the upper bottom surface of described pallet 3 contacts with face in the middle part of diaphragm.
Above-mentioned pallet 3 comprises pallet top 31 and pallet bottom 32, the diameter on described pallet top 31 is greater than the diameter of pallet bottom 32, and the difference of the gap between the bottom surface on described pallet top 31 and main spring seat 5 upper bottom surface and the height of upper clamp sleeve 41 is less than the maximum deformation quantity that diaphragm 1 allows.
The bottom surface of above-mentioned pallet bottom 32 is provided with ball-and-socket, and described spring seat head 51 is bulb, and withstand ball-and-socket in the bottom surface that described spring seat head 51 stretches into pallet bottom 32, the diameter of described ball-and-socket is greater than the diameter of bulb.
The place that above-mentioned pallet 3 coordinates with upper clamp sleeve 41 is sphere, adopts coordinating of cylndrical surface and sphere between the internal face of described upper clamp sleeve 41 and the outer wall of pallet bottom 32.
The invention has the beneficial effects as follows:
1, diaphragm support structure of the present invention comprises the pallet, clamp sleeve, the main spring holder assembly that in axial direction set gradually below diaphragm.By the ingehious design to clamp sleeve structure, diametrically, clamp sleeve external cylindrical surface is led by valve body inner bore, and its endoporus leads to pallet again, thus realize regulating the centering of diaphragm (assembly) and main spring, thus improve life-span and the functional reliability of reduction valve; In addition, diaphragm and main spring are led, the stability of reduction valve pressure degree of regulation and performance can be improved.
2, diaphragm support structure of the present invention in the axial direction, tray support diaphragm, and the power of main spring is upwards transmitted by main spring seat vertically; Before clamp sleeve is positioned at pallet and main spring seat, restriction pallet downwards and main spring seat maximum displacement upwards, thus achieves diaphragm axial deformation quantitative limitation.
3, diaphragm support structure of the present invention, pallet bottom and main spring seat cooperation place are socket arrangement, are conducive to spring force and transmit vertically, avoid occurring that at this place stress concentrates even structural damage.
4, diaphragm support structure of the present invention, pallet circumference and clamp sleeve cooperation place are cylndrical surface and the coordinating of sphere, and are conducive to raising high temperature dexterity of action.
5, diaphragm support structure of the present invention achieves support to diaphragm, axial limiting and centering by less part and simple structure and regulates, and has that structure is simple, reliable in function, highly versatile, is easy to the advantages such as realization.In design, choose at material and structural parameter the impact having taken into full account applied at elevated temperature condition, be applicable to the operating mode of medium temperature ≯ 700K.
Accompanying drawing explanation
Fig. 1 is the constitutional diagram of a kind of high-temperature pressure-reduction valve film of the present invention supporting structure.
Embodiment
There is a spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action, comprise diaphragm 1, pressure ring 7, valve body 2, pallet 3, clamp sleeve 4, main spring seat 5, main spring 6.
The edge of diaphragm 1 is pressed on valve body 2 by pressure ring 7, clamp sleeve 4 is divided into clamp sleeve 41 and lower clamp sleeve 42 two-part, the diameter of bore of upper clamp sleeve 41 is less than the diameter of bore of lower clamping sleeve 42, and the outer wall diameter of upper clamp sleeve 41 is less than the outer wall diameter of lower clamping sleeve 42; The internal face of upper clamp sleeve 41 and the outer wall of pallet 3 suitable, the bottom of the ring shoulder that upper clamp sleeve 41 and lower clamp sleeve 42 are formed and pressure ring 7 is suitable, and outer wall and valve body 2 endoporus of lower clamp sleeve 42 are suitable; Main spring seat comprises spring seat body 52 and spring seat head 51.
Assembly relation and working procedure:
When diaphragm does not overturn, the upper bottom surface of spring seat body 51 is pressed on the bottom surface of upper clamp sleeve 41 by the free end of spring 6, and the upper bottom surface of pallet 3 contacts with face in the middle part of diaphragm; In working procedure, diaphragm bears the backward lower upset of pressure, and the bottom surface on pallet top 31 contacts with the upper bottom surface of upper clamp sleeve 41, and the upper bottom surface of spring seat body 51 and the bottom surface of tight sleeve 41 are thrown off.In this process, spring seat head 51 contacts all the time with pallet 3 bottom surface ball-and-socket.
Pallet 3 is connected by mating spherical surfaces with main spring seat 5, and main spring force is passed to diaphragm vertically; Mating spherical surfaces can play the effect reducing radial component.Lower clamp sleeve 42 outer wall and valve body 2 inner hole, the endoporus of upper clamp sleeve 41 coordinates with pallet 3, valve body 2 is led to pallet 3 indirectly, makes main spring force concentrate vertically further, main spring force truly, is exactly upwards transmitted by diaphragm.Designed by dimensional chain, make the diameter on pallet top be greater than the diameter of pallet bottom, the difference of the gap between the circular bead surface that pallet top and pallet bottom are formed and spring seat end face and the height of upper clamp sleeve is less than the maximum deformation quantity that diaphragm allows.
Part and structural design aspect: pallet bottom and main spring seat cooperation place are socket arrangement, pallet 3 bottom ball-and-socket diameter should be greater than main spring seat 5 upper end bulb diameter, and two parameter should match with the tensile strength of part material and main spring force, avoid occurring that at this place stress concentrates even structural damage.
The cooperation place of clamp sleeve 4 and pallet 3 is mating spherical surfaces, should take into full account the impact of temperature factor on kinematic dexterity in structural design, and it is cylndrical surface that this programme have selected hole, and axle is the cooperating structure of sphere; This structure have short-range missile to, flexibly, the advantage such as reliability is high.In addition for applied at elevated temperature condition, the diameter of clamp sleeve 4 endoporus and pallet 3 sphere guiding also should according to factor Rational choices such as the expansion coefficient of temperature and material.
The embodiment being applied to certain high temperature (combustion gas) reduction valve is as follows:
This diaphragm support structure is have employed in the conceptual design of certain novel gas pressurization system reduction valve.According to designing requirement, the working medium of reduction valve is high-temperature fuel gas, inlet pressure 2.6 ~ 5MPa, nominal outlet port pressure is 1.2MPa, range of flow 0 ~ 3.6L/s, fuel gas temperature ≯ 700K, outlet pressure deviations is not more than 10%, closing pressure ≮ 1.4, and diaphragm material is refractory alloy.Through producing and verification experimental verification, adopt this diaphragm support structure, reduction valve height <120mm, heavy 0.35kg; Good manufacturability, reliable in function, performance meets system requirements.
Those skilled in the art can carry out various supplement, improvement and replacing according to different designing requirements and design parameter when not departing from the structure that claim defines, and therefore, the present invention is widely.
Claims (4)
1. there is a spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action, it is characterized in that:
Comprise pressure ring (7), pallet (3), clamp sleeve (4), main spring seat (5), spring (6),
The edge of diaphragm (1) is pressed on valve body (2) by described pressure ring (7),
Described clamp sleeve (4) is divided into clamp sleeve (41) and lower clamp sleeve (42) two-part, the diameter of bore of described upper clamp sleeve (41) is less than the diameter of bore of lower clamp sleeve (42), and the outer wall diameter of described upper clamp sleeve (41) is less than the outer wall diameter of lower clamp sleeve (42); The internal face of described upper clamp sleeve (41) and the outer wall of pallet (3) suitable, the bottom of the ring shoulder that described upper clamp sleeve (41) and lower clamp sleeve (42) are formed and pressure ring (7) is suitable, and outer wall and valve body (2) endoporus of described lower clamp sleeve (42) are suitable;
Described main spring seat comprises spring seat body (52) and spring seat head (51),
When diaphragm does not overturn, the upper bottom surface of spring seat body (52) is pressed on the bottom surface of upper clamp sleeve (41) by the free end of described spring (6), described spring seat head (51) contacts with in the middle part of pallet (3) bottom surface, and the upper bottom surface of described pallet (3) contacts with face in the middle part of diaphragm.
2. according to claim 1 have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action, it is characterized in that: described pallet (3) comprises pallet top (31) and pallet bottom (32), the diameter of described pallet top (31) is greater than the diameter of pallet bottom (32), and the difference of the gap between the bottom surface of described pallet top (31) and main spring seat (5) upper bottom surface and the height of upper clamp sleeve (41) is less than the maximum deformation quantity that diaphragm (1) allows.
3. according to claim 1 and 2 have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action, it is characterized in that: the bottom surface of described pallet bottom (32) is provided with ball-and-socket, described spring seat head (51) is bulb, withstand ball-and-socket in the bottom surface that described spring seat head (51) stretches into pallet bottom (32), the diameter of described ball-and-socket is greater than the diameter of bulb.
4. according to claim 3 have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action, it is characterized in that: the place that described pallet (3) coordinates with upper clamp sleeve (41) is sphere, between the internal face of described upper clamp sleeve (41) and the outer wall of pallet bottom (32), adopt coordinating of cylndrical surface and sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210535387.1A CN103032611B (en) | 2012-12-12 | 2012-12-12 | A kind of have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210535387.1A CN103032611B (en) | 2012-12-12 | 2012-12-12 | A kind of have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action |
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| Publication Number | Publication Date |
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| CN103032611A CN103032611A (en) | 2013-04-10 |
| CN103032611B true CN103032611B (en) | 2015-11-18 |
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| CN201210535387.1A Active CN103032611B (en) | 2012-12-12 | 2012-12-12 | A kind of have spacing and high-temperature pressure-reduction valve film supporting structure that is centering regulating action |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539782A (en) * | 2008-03-19 | 2009-09-23 | Ckd株式会社 | Flow rate control device |
| CN202158238U (en) * | 2011-08-03 | 2012-03-07 | 浙江三正气动有限公司 | Diaphragm type reducing valve |
| CN202302161U (en) * | 2011-11-11 | 2012-07-04 | 宁波市华益气动工程有限公司 | Pressure-regulating and pressure-stabilizing mechanism of pilot-type pressure reducing valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005107953A (en) * | 2003-09-30 | 2005-04-21 | Mitsuba Corp | Pressure control device |
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- 2012-12-12 CN CN201210535387.1A patent/CN103032611B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539782A (en) * | 2008-03-19 | 2009-09-23 | Ckd株式会社 | Flow rate control device |
| CN202158238U (en) * | 2011-08-03 | 2012-03-07 | 浙江三正气动有限公司 | Diaphragm type reducing valve |
| CN202302161U (en) * | 2011-11-11 | 2012-07-04 | 宁波市华益气动工程有限公司 | Pressure-regulating and pressure-stabilizing mechanism of pilot-type pressure reducing valve |
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| CN103032611A (en) | 2013-04-10 |
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