CN103032611A - Membrane supporting structure of high temperature reducing valve with limiting and aligning and adjusting effects - Google Patents
Membrane supporting structure of high temperature reducing valve with limiting and aligning and adjusting effects Download PDFInfo
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- CN103032611A CN103032611A CN2012105353871A CN201210535387A CN103032611A CN 103032611 A CN103032611 A CN 103032611A CN 2012105353871 A CN2012105353871 A CN 2012105353871A CN 201210535387 A CN201210535387 A CN 201210535387A CN 103032611 A CN103032611 A CN 103032611A
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- pallet
- clamp sleeve
- spring seat
- supporting structure
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- 239000012528 membrane Substances 0.000 title abstract description 8
- 230000000694 effects Effects 0.000 title abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 5
- 238000007906 compression Methods 0.000 abstract 5
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910000753 refractory alloy Inorganic materials 0.000 description 1
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Abstract
The invention relates to a membrane supporting structure of a high temperature reducing valve with limiting and aligning and adjusting effects. The supporting structure consists of a tray, a compression ring, a compression sleeve and a main spring base, and has the effect of limiting axial deformation of a membrane and aligning and adjusting the membrane. The free end of a spring compresses the upper bottom face of a spring base body on the lower bottom face of the compression sleeve. The upper bottom face of the tray is in surface contact with the middle part of the membrane. In the working process, the membrane stressed overturns downward, the lower bottom face on the upper part of the tray is in surface contact with the upper bottom face of the compression sleeve, and the upper bottom face of the spring base body is separated from the lower bottom face of the compression sleeve. In the process, the head of the spring base is always contacted with a ball socket on the lower bottom face of the tray. The supporting structure provided by the invention is suitable for supporting various metal and non-metal membranes, and further has the characteristics of high temperature (700K) resistance and corrosion resistance. The supporting structure is in particular suitable for a high-precision, high-temperature and corrosive gas medium reducing valve, and can be repeatedly used after simple maintenance.
Description
Technical field
The present invention relates to a kind of spacing and pressure reducing valve membrane sheet supporting structure 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 systems, is used for regulating and stable system pressure.High temperature (gas) reduction valve is as the pressure adjusting part of system, and its performance directly affects service behaviour and the reliability of system.Be subject to the restriction of applied at elevated temperature condition, the reduction valve sensing element adopts metal diaphragm more, but easily excessively generation plastic deformation or structural damage of upset of metal diaphragm.
Summary of the invention
The technical problem of plastic deformation or structural damage excessively occuring for solving the diaphragm upset, the invention provides a kind of can the restriction the axial maximum deformation quantity up and down of diaphragm, can carry out the diaphragm support structure that centering is regulated to diaphragm and main spring again.
Technical solution of the present invention is as follows:
A kind of have spacing and the high-temperature pressure-reduction valve film supporting structure centering regulating action, and its special way is: comprise pressure ring 7, pallet 3, clamp sleeve 4, main spring seat 5, spring 6,
Described pressure ring 7 is pressed in the edge of diaphragm 1 on the valve body 2,
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 outer wall of the internal face of described upper clamp sleeve 41 and pallet 3 is suitable, and the ring shoulder that described upper clamp sleeve 41 and lower clamp sleeve 42 form and the bottom of pressure ring 7 are suitable, and the outer wall of described lower clamp sleeve 42 and valve body 2 endoporus are suitable;
Described main spring seat comprises spring seat body 52 and spring seat head 51,
When diaphragm did not overturn, the free end of described spring 6 was pressed in the upper bottom surface of spring seat body 51 on the bottom surface of upper clamp sleeve 41, and described spring seat head 51 contacts with pallet 3 bottom surfaces middle part, and the upper bottom surface of described pallet 3 contacts with diaphragm middle part face.
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 surfaces and the height of upper clamp sleeve 41 is less than the maximum deformation quantity of diaphragm 1 permission.
The bottom surface of above-mentioned pallet bottom 32 is provided with ball-and-socket, and described spring seat head 51 is bulb, and described spring seat head 51 stretches in the bottom surface of pallet bottom 32 and withstands ball-and-socket, and the diameter of described ball-and-socket is greater than the diameter of bulb.
The place that above-mentioned pallet 3 cooperates with upper clamp sleeve 41 is sphere, adopts cooperating of cylndrical surface and sphere between the outer wall of the internal face of described upper clamp sleeve 41 and pallet bottom 32.
The invention has the beneficial effects as follows:
1, diaphragm support structure of the present invention comprises pallet, clamp sleeve, the main spring holder assembly that the diaphragm below in axial direction sets gradually.By the ingehious design to the clamp sleeve structure, diametrically, so that the clamp sleeve external cylindrical surface is led by valve body inner bore, its endoporus leads to pallet again, thereby realize the centering of diaphragm (assembly) and main spring is regulated, thereby life-span and the functional reliability of raising reduction valve; In addition, diaphragm and main spring are led, can improve the stability of reduction valve pressure degree of regulation and performance.
2, diaphragm support structure of the present invention in the axial direction, the tray support diaphragm, the main spring seat upwards transmits the power of main spring vertically; Clamp sleeve is positioned at before pallet and the main spring seat, the maximum displacement that the restriction pallet is downward and the main spring seat makes progress, thus realized 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 stress occurring at this place and concentrate even structural damage.
4, diaphragm support structure of the present invention, pallet are the cylndrical surface and the cooperating of sphere with the clamp sleeve cooperation place circumferentially, are conducive to improve the high temperature dexterity of action.
5, diaphragm support structure of the present invention has realized that with less part and simple structure support, axial limiting and centering to diaphragm regulate, and has simple in structure, reliable in function, highly versatile, is easy to the advantages such as realization.In the design, take into full account the impact of applied at elevated temperature condition choosing of material and structural parameter, be applicable to the operating mode of medium temperature ≯ 700K.
Description of drawings
Fig. 1 is the constitutional diagram of a kind of high-temperature pressure-reduction valve film of the present invention supporting structure.
Embodiment
A kind of have spacing and the high-temperature pressure-reduction valve film supporting structure centering regulating action, comprises diaphragm 1, pressure ring 7, valve body 2, pallet 3, clamp sleeve 4, main spring seat 5, main spring 6.
Assembly relation and working procedure:
When diaphragm did not overturn, the free end of spring 6 was pressed in the upper bottom surface of spring seat body 51 on the bottom surface of upper clamp sleeve 41, and the upper bottom surface of pallet 3 contacts with diaphragm middle part face; In the 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 is thrown off with the bottom surface of tight sleeve 41.In this process, spring seat head 51 contacts all the time with pallet 3 bottom surface ball-and-sockets.
Part and structural design aspect: pallet bottom and main spring seat cooperation place are socket arrangement, pallet 3 bottom ball-and-socket diameters should be greater than main spring seat 5 upper end bulb diameters, and two parameters should be complementary with tensile strength and the main spring power of part material, avoid stress occurring at this place and concentrate even structural damage.
The cooperation place of clamp sleeve 4 and pallet 3 is that sphere cooperates, and should take into full account temperature factor in the structural design to the impact of kinematic dexterity, and it is the cylndrical surface that this programme has been selected the hole, and axle is the cooperating structure of sphere; This structure have short-range missile to, flexibly, the advantage such as reliability is high.For the applied at elevated temperature condition, the diameter of clamp sleeve 4 endoporus and pallet 3 spheres guiding also should be according to the factor Rational choices such as expansion coefficient of temperature and material in addition.
The embodiment that is applied to certain high temperature (combustion gas) reduction valve is as follows:
In the conceptual design of certain novel gas pressurization system reduction valve, adopted this diaphragm support structure.According to designing requirement, the working medium of reduction valve is high-temperature fuel gas, inlet pressure 2.6～5MPa, specified outlet pressure is 1.2MPa, range of flow 0 ~ 3.6L/s, fuel gas temperature ≯ 700K, the outlet pressure deviation 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 satisfies system requirements.
Those skilled in the art can carry out variously augmenting, improving and change in the situation that does not depart from the structure that claim defines according to different designing requirements and design parameter, and therefore, the present invention is widely.
Claims (4)
1. one kind has spacing and the high-temperature pressure-reduction valve film supporting structure centering regulating action, it is characterized in that: comprise pressure ring (7), pallet (3), clamp sleeve (4), main spring seat (5), spring (6),
Described pressure ring (7) is pressed in the edge of diaphragm (1) on the valve body (2),
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 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 outer wall of the internal face of described upper clamp sleeve (41) and pallet (3) is suitable, the ring shoulder that described upper clamp sleeve (41) and lower clamp sleeve (42) form and the bottom of pressure ring (7) are suitable, and the outer wall of described lower clamp sleeve (42) and valve body (2) endoporus are suitable;
Described main spring seat comprises spring seat body (52) and spring seat head (51),
When diaphragm does not overturn, the free end of described spring (6) is pressed in the upper bottom surface of spring seat body (51) on the bottom surface of upper clamp sleeve (41), described spring seat head (51) contacts with pallet (3) bottom surface middle part, and the upper bottom surface of described pallet (3) contacts with diaphragm middle part face.
2. according to claim 1 have spacing and the high-temperature pressure-reduction valve film supporting structure centering regulating action, it is characterized in that: described 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 of diaphragm (1) permission.
3. according to claim 1 and 2 have spacing and the high-temperature pressure-reduction valve film supporting structure 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, described spring seat head (51) stretches in the bottom surface of pallet bottom (32) and withstands ball-and-socket, and the diameter of described ball-and-socket is greater than the diameter of bulb.
4. according to claim 3 have spacing and the high-temperature pressure-reduction valve film supporting structure centering regulating action, it is characterized in that: the place that described pallet (3) cooperates with upper clamp sleeve (41) is sphere, adopts cooperating of cylndrical surface and sphere between the internal face of described upper clamp sleeve (41) and the outer wall of pallet bottom (32).
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103032611A true CN103032611A (en) | 2013-04-10 |
| CN103032611B CN103032611B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210535387.1A Expired - Fee Related 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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| CN (1) | CN103032611B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005107953A (en) * | 2003-09-30 | 2005-04-21 | Mitsuba Corp | Pressure control device |
| 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 |
-
2012
- 2012-12-12 CN CN201210535387.1A patent/CN103032611B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005107953A (en) * | 2003-09-30 | 2005-04-21 | Mitsuba Corp | Pressure control device |
| 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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| CN103032611B (en) | 2015-11-18 |
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Granted publication date: 20151118 |