CN203847727U - Valve sleeve structure capable of compensating for thermal expansion and cold contraction automatically under high-temperature condition - Google Patents
Valve sleeve structure capable of compensating for thermal expansion and cold contraction automatically under high-temperature condition Download PDFInfo
- Publication number
- CN203847727U CN203847727U CN201420225374.9U CN201420225374U CN203847727U CN 203847727 U CN203847727 U CN 203847727U CN 201420225374 U CN201420225374 U CN 201420225374U CN 203847727 U CN203847727 U CN 203847727U
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- Prior art keywords
- sleeve
- valve
- valve body
- seal ring
- temperature condition
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- Expired - Lifetime
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- 230000008602 contraction Effects 0.000 title abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a valve sleeve structure capable of compensating for thermal expansion and cold contraction automatically under a high-temperature condition. The valve sleeve structure comprises a valve deck, a winding gasket, a sleeve and a valve body. A butterfly valve is arranged on a step of the sleeve. A seal ring is arranged between the sleeve and the valve body. According to the structure, the pre-tightening force of the sleeve is transmitted through a disk spring, and thermal expansion and cold contraction of the sleeve are made up automatically according to a characteristic curve of the disk spring and the characteristic that the deformation quantity changes while an output load does not change in a specific deformation section, so that the pre-tightening force of the sleeve is kept constant, deformation is prevented, and the service life of the sleeve is prolonged; the seal ring arranged between the sleeve and the valve body solves the problem of internal leakage between the sleeve and the valve body.
Description
Technical field
The utility model patent relates to the mounting mechanism of trim, is mainly used in valve field, is specifically related to the valve sleeve barrel structure that under a kind of high temperature condition, auto-compensation expands with heat and contract with cold.
Background technique
At present, the mounting type of known valves sleeve, mainly to rely on valve gap to carry out precompressed sleeve by spirotallic gasket, and leaking outside between valve body and valve gap is also to realize by the spirotallic gasket between valve gap precompressed valve body and valve gap, interior leakage between sleeve and valve body is also to realize by the spirotallic gasket between valve gap precompressed sleeve and valve gap, some design deficiency below so such structure just exists in practice: 1. by the spirotallic gasket of valve gap precompressed simultaneously valve body and the spirotallic gasket of sleeve, processing to product and matching requirements are very high, and can not ensure success rate, 2. what adopt due to the pretension of sleeve is rigid connection, and the medium temperature that valve passes through is variant, will produce expanding with heat and contract with cold of sleeve, sleeve pretightening force under heat expansion condition is become cause greatly sleeve distortion and because shrinkage makes the hypodynamic defect of sleeve pretension.
Summary of the invention
The utility model is mainly for the problem in above-mentioned technology, the valve sleeve barrel structure that under a kind of high temperature condition, auto-compensation expands with heat and contract with cold is provided, adopt the form of dish spring in the pretightening force transmission of sleeve, the characteristic curve that utilizes dish spring to have, change and the constant characteristic of output loads makes up expanding with heat and contract with cold of sleeve automatically in the interval internal strain amount of certain variations, make the pretightening force of sleeve keep constant, prevent that distortion from improving the sleeve life-span.
The purpose of this utility model is mainly achieved by following proposal: the valve sleeve barrel structure that under a kind of high temperature condition, auto-compensation expands with heat and contract with cold, comprise valve gap, spirotallic gasket, sleeve and valve body, the step of described sleeve is provided with butterfly valve, between described sleeve and valve body, is provided with seal ring.
Compared with prior art, the beneficial effects of the utility model are: the form that adopts dish spring in the pretightening force transmission of sleeve, the characteristic curve that utilizes dish spring to have, change and the constant characteristic of output loads makes up expanding with heat and contract with cold of sleeve automatically in the interval internal strain amount of certain variations, make the pretightening force of sleeve keep constant, prevent that distortion from improving the sleeve life-span; Between sleeve and valve body, be provided with seal ring, seal ring has solved the interior leakage problem between sleeve and valve body.
As preferably, described seal ring is carbon seal ring or radial direction seal ring.Wherein radial direction seal ring have simple in structure, be convenient to install, long service life, the advantage of good sealing effect.Carbon seal ring has advantages of long-life, low friction, good airproof performance.
Brief description of the drawings
Fig. 1 is that sectional structure chart is faced in the utility model mounting point on valve;
Fig. 2 is the structure enlarged view of A part in Fig. 1.
Shown in Fig. 2: 1. valve gap 2. seal ring 3. spirotallic gasket 4. dish spring 5. sleeve 6. valve bodies.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail; but be not limited to following embodiment; the technician of same area can propose other embodiment in the technical solution of the utility model framework, but these embodiments include in protection domain of the present utility model.
As shown in Figure 1, 2, the valve sleeve barrel structure that under a kind of high temperature condition, auto-compensation expands with heat and contract with cold, comprises valve gap 1, spirotallic gasket 3, sleeve 5 and valve body 6, and the step of described sleeve is provided with butterfly valve, is provided with seal ring 2 between described sleeve and valve body.
When practical operation, by calculating, the pretension ouput force of design dish spring, has enough power to carry out clamp sleeve while making dish spring pretension.When installation, first grip wound packages enters valve body, then dish spring is put on sleeve step, and spirotallic gasket is fit on the step of valve body, then seal ring is packed in the groove of sleeve, the last careful valve gap of installing, and sleeve pre-tightening apparatus is with regard to installation.
The valve sleeve barrel structure that under above-mentioned high temperature condition, auto-compensation expands with heat and contract with cold, adopt the form of dish spring in the pretightening force transmission of sleeve, the characteristic curve that utilizes dish spring to have, change and the constant characteristic of output loads makes up expanding with heat and contract with cold of sleeve automatically in the interval internal strain amount of certain variations, make the pretightening force of sleeve keep constant, prevent that distortion from improving the sleeve life-span, between sleeve and valve body, be provided with carbon seal ring, carbon seal ring has solved the interior leakage problem between sleeve and valve body, has advantages of long-life, low friction, good airproof performance.
Above-mentioned embodiment is used for the utility model of explaining; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment and change that the utility model is made, all fall into protection domain of the present utility model.
Claims (2)
1. the valve sleeve barrel structure that under a high temperature condition, auto-compensation expands with heat and contract with cold, comprise valve gap (1), spirotallic gasket (3), sleeve (5) and valve body (6), it is characterized in that, the step of described sleeve is provided with butterfly valve, is provided with seal ring (2) between described sleeve and valve body.
2. the valve sleeve barrel structure that under a kind of high temperature condition according to claim 1, auto-compensation expands with heat and contract with cold, is characterized in that, described seal ring is carbon seal ring or radial direction seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225374.9U CN203847727U (en) | 2014-05-05 | 2014-05-05 | Valve sleeve structure capable of compensating for thermal expansion and cold contraction automatically under high-temperature condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225374.9U CN203847727U (en) | 2014-05-05 | 2014-05-05 | Valve sleeve structure capable of compensating for thermal expansion and cold contraction automatically under high-temperature condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847727U true CN203847727U (en) | 2014-09-24 |
Family
ID=51560746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420225374.9U Expired - Lifetime CN203847727U (en) | 2014-05-05 | 2014-05-05 | Valve sleeve structure capable of compensating for thermal expansion and cold contraction automatically under high-temperature condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847727U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609873A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Elastic hard-sealing balance type valve element |
| CN109854755A (en) * | 2019-02-27 | 2019-06-07 | 西安航天远征流体控制股份有限公司 | A kind of high temperature break valve |
-
2014
- 2014-05-05 CN CN201420225374.9U patent/CN203847727U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609873A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Elastic hard-sealing balance type valve element |
| CN106609873B (en) * | 2015-10-22 | 2020-01-07 | 中核苏阀科技实业股份有限公司 | Elastic hard sealing balanced valve core |
| CN109854755A (en) * | 2019-02-27 | 2019-06-07 | 西安航天远征流体控制股份有限公司 | A kind of high temperature break valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 41 Jinqiu Avenue, Fuyang, Hangzhou, Zhejiang Province, 311400 Patentee after: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 41 Jinqiu Avenue, Fuyang, Hangzhou, Zhejiang Province, 311400 Patentee before: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Address after: No. 41 Jinqiu Avenue, Fuyang, Hangzhou, Zhejiang Province, 311400 Patentee after: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 41 Jinqiu Avenue, Fuyang, Hangzhou, Zhejiang Province, 311400 Patentee before: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |