CN201129471Y - Vacuum thermal insulation low temperature valve - Google Patents
Vacuum thermal insulation low temperature valve Download PDFInfo
- Publication number
- CN201129471Y CN201129471Y CNU2007201839902U CN200720183990U CN201129471Y CN 201129471 Y CN201129471 Y CN 201129471Y CN U2007201839902 U CNU2007201839902 U CN U2007201839902U CN 200720183990 U CN200720183990 U CN 200720183990U CN 201129471 Y CN201129471 Y CN 201129471Y
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- China
- Prior art keywords
- valve
- low temperature
- valve body
- insulation low
- vacuum insulation
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Abstract
The utility model discloses an industrial control valve, in particular to a vacuum thermal-insulated low-temperature valve for the automatic control system feeding low-temperature gas or liquefied gas. The utility model comprises a vacuum jacket, a valve body in the jacket, a thermal insulated material coiled on the outer wall of the valve body, a corrugated pipe compensator and a heat bridge at two ends of the valve body, a valve core and a valve rod moving up and down in the valve body, wherein the thermal insulated material is composed of an aluminum foil and an alkali-free glass fiber cloth coiled distantly. The vacuum thermal-insulated low-temperature valve has better thermal insulation, simple and compact structure and the ability for insulating heat effectively without external devices.
Description
Technical field
The utility model relates to a kind of industrial control valve, in particular, is a kind of vacuum insulation low temperature valve.
Background technique
The valve that is used for cold section at present is installed in " ice chest " usually, is incubated cold insulation with cold air, needs the external facility and the energy; Or valve integral body to include in the vacuum box insulation in adiabatic, volume is big, inconvenience is safeguarded in dismounting.
The model utility content
The purpose of this utility model is to overcome deficiency of the prior art, a kind of vacuum insulation low temperature valve is provided, this valve has good heat-insulating property, and it is simple and compact for structure, need not external facility and can reach the adiabatic ideal effect of insulation, be applicable to the automatic adjusting and the telecontrol of transporting low temperature gas or liquid gas process.
To achieve these goals, the utility model is to be achieved through the following technical solutions.
A kind of vacuum insulation low temperature valve comprises valve body, spool and valve rod, and the outer wall of described valve body is wound with thermoinsulation material, and is arranged in the vacuum jacket.
As a kind of improvement, described thermoinsulation material is to be radiation screen with the aluminium foil, and alkali-free glass fiber cloth is a Spacer, successively twines at interval to constitute.
As a kind of improvement, the number of plies that twine at described interval is at least 20 layers, and outermost surface connects 2 layers of alkali-free glass fiber cloth of winding again, ties up with the alkali-free glass fibre band again.
As a kind of improvement, described alkali-free glass fiber cloth and alkali-free glass fibre band are through 500 ℃～600 ℃ high temperature ungrease treatments.
As a kind of improvement, be provided with the heat bridge that can prolong heat conduction via at the entry end and the outlet end of valve.
As a kind of improvement, be provided with corrugated expansion joint at the entry end and the outlet end of valve.
As a kind of improvement, described spool hollow; The seal form of described valve rod is sylphon seal.
Compared with prior art, the beneficial effects of the utility model are:
1. the outer wall of valve body is wound with thermoinsulation material, has reduced cold damage and thermal radiation loss significantly, the heat-insulating property excellence.
2. adopt the vacuum jacket thermal insulation, stopped fluid and extraneous transmission of heat and convection current, need not external facility and can reach the adiabatic ideal effect of insulation.
3. heat bridge setting prolongs heat conduction via, reduces cold damage significantly.
4. corrugated expansion joint is eliminated because of the expand modification of the pipe that causes of difference.
5. spool hollow is in light weight, has reduced the vaporization loss of loss of refrigeration capacity and medium; The valve rod sylphon seal has reduced the interior evaporating space of valve body and has protected filler not contacted by cryogenic media.
6. simple and compact for structure, can not pull down pipeline and change main part fast.
Description of drawings
Fig. 1 is the sectional structure chart of the utility model vacuum insulation low temperature valve.
Among the figure, 1 valve body, 2 chucks, 3 spools, 4 valve rods, 5 bellowss, 6 corrugated expansion joints, 7 heat bridges, 8 thermoinsulation materials.
Embodiment
As shown in Figure 1, the utility model vacuum insulation low temperature valve comprises valve body 1, spool 3 and valve rod 4, and the outer wall of valve body 1 is wound with thermoinsulation material 8, and is arranged in the vacuum jacket 2.Thermoinsulation material 8 is to be radiation screen with high barrier, adiabatic metallic material aluminium foil, and insulation and the good alkali-free glass fiber cloth of thermal insulation property are Spacer, successively twine formation at interval.In this example, valve body 1 outer wall connects earlier and twines two-layer alkali-free glass fiber cloth, and aluminium foil and alkali-free glass fiber cloth successively twine 20 layers at interval then, and outermost surface connects and twines two-layer alkali-free glass fiber cloth, and tie up with the alkali-free glass fibre band back that finishes.Alkali-free glass fiber cloth and alkali-free glass fibre band are all through 500 ℃～600 ℃ high temperature ungrease treatments.So twine reflecting layer and thermal-protective coating space, and thermal radiation loss is little, good heat-insulation effect.
At the heat bridge 7 that the entry end and the outlet end of valve is provided with thin-walled shape, valve two ends heat conduction via is prolonged, reduced loss of refrigeration capacity greatly; Entry end and outlet end at valve also are provided with stainless corrugated expansion joint 6, utilize the stretchability of bellows, have eliminated the part deformation that different expansions cause.
Spool 3 hollows, the hollow spool 3 of lengthening, valve rod 4 and bellows 5 are formed a whole outer odd test assembly, and the bodily form increases that but weight is little, and is little with the space of the thin walled cylinder formation of valve body 1 behind the valve body 1 of packing into, reduced the evaporating space of flowing medium; The seal form of valve rod 4 is sylphon seal, and bellows 5 has been protected filler, avoid that seepage because of valve rod 4 places causes freeze, bad phenomenon such as frosting.
Valve body 1, corrugated expansion joint 6, heat bridge 7 and the spool 3 that walks up and down in valve body 1, valve rod 4 all are contained within the chuck 2, extracting vacuum in the chuck 2.Before finding time, the 5A molecular sieve of the activation processing of packing into earlier.Degree of vacuum 1 * 10
-3Pa has reduced convective heat exchange effectively.
At last, it is also noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, the utility model can also have many distortion, and all distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (6)
1. a vacuum insulation low temperature valve comprises valve body, spool and valve rod, it is characterized in that, the outer wall of described valve body is wound with thermoinsulation material, and is arranged in the vacuum jacket.
2. vacuum insulation low temperature valve according to claim 1 is characterized in that, described thermoinsulation material is to be radiation screen with the aluminium foil, and alkali-free glass fiber cloth is a Spacer, successively twines at interval to constitute.
3. vacuum insulation low temperature valve according to claim 2 is characterized in that, the number of plies that twine at described interval is at least 20 layers, and outermost surface connects 2 layers of alkali-free glass fiber cloth of winding again, ties up with the alkali-free glass fibre band again.
4. vacuum insulation low temperature valve according to claim 1 is characterized in that, is provided with the heat bridge that can prolong heat conduction via at the entry end and the outlet end of valve.
5. vacuum insulation low temperature valve according to claim 1 is characterized in that, is provided with corrugated expansion joint at the entry end and the outlet end of valve.
6. vacuum insulation low temperature valve according to claim 1 is characterized in that, described spool hollow; The seal form of described valve rod is sylphon seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201839902U CN201129471Y (en) | 2007-10-18 | 2007-10-18 | Vacuum thermal insulation low temperature valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201839902U CN201129471Y (en) | 2007-10-18 | 2007-10-18 | Vacuum thermal insulation low temperature valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129471Y true CN201129471Y (en) | 2008-10-08 |
Family
ID=40017316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201839902U Expired - Fee Related CN201129471Y (en) | 2007-10-18 | 2007-10-18 | Vacuum thermal insulation low temperature valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129471Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956838A (en) * | 2009-07-17 | 2011-01-26 | 张德飞 | Fireproofing vacuum heat-insulating ball valve |
| CN103498995A (en) * | 2013-09-26 | 2014-01-08 | 北京航天试验技术研究所 | Valve of dual-vacuum structure |
| CN104728461A (en) * | 2014-06-25 | 2015-06-24 | 氟络塞尔特种阀门(苏州)有限公司 | Plug valve for heat-preserving and sealing jacket |
| CN107587548A (en) * | 2012-06-15 | 2018-01-16 | 住友建机株式会社 | The hydraulic circuit of construction machinery |
| CN111022654A (en) * | 2019-11-22 | 2020-04-17 | 江苏克劳特低温技术有限公司 | Low-temperature valve |
-
2007
- 2007-10-18 CN CNU2007201839902U patent/CN201129471Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956838A (en) * | 2009-07-17 | 2011-01-26 | 张德飞 | Fireproofing vacuum heat-insulating ball valve |
| CN107587548A (en) * | 2012-06-15 | 2018-01-16 | 住友建机株式会社 | The hydraulic circuit of construction machinery |
| CN103498995A (en) * | 2013-09-26 | 2014-01-08 | 北京航天试验技术研究所 | Valve of dual-vacuum structure |
| CN103498995B (en) * | 2013-09-26 | 2016-02-03 | 北京航天试验技术研究所 | Two vacuum structure valve |
| CN104728461A (en) * | 2014-06-25 | 2015-06-24 | 氟络塞尔特种阀门(苏州)有限公司 | Plug valve for heat-preserving and sealing jacket |
| CN111022654A (en) * | 2019-11-22 | 2020-04-17 | 江苏克劳特低温技术有限公司 | Low-temperature valve |
| CN111022654B (en) * | 2019-11-22 | 2021-11-26 | 江苏克劳特低温技术有限公司 | Low-temperature valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Sanfang Control Valve Co., Ltd. Assignor: Zhejiang Sanfang Group Co., Ltd. Contract record no.: 2011330000182 Denomination of utility model: Vacuum thermal insulation low temperature valve Granted publication date: 20081008 License type: Exclusive License Record date: 20110401 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SANFANG CONTROL VALVE CO., LTD. Free format text: FORMER OWNER: SANFANG GROUP CO., LTD., ZHEJIANG Effective date: 20130216 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 311402 HANGZHOU, ZHEJIANG PROVINCE TO: 310000 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130216 Address after: 310000 No. 41, golden autumn Avenue, Zhejiang, Fuyang Patentee after: Zhejiang Sanfang Control Valve Co., Ltd. Address before: 311402 No. 41, golden autumn Avenue, Zhejiang, Fuyang Patentee before: Zhejiang Sanfang Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20161018 |