CN202852103U - Self-operated pressure regulator suitable for low-temperature environment - Google Patents
Self-operated pressure regulator suitable for low-temperature environment Download PDFInfo
- Publication number
- CN202852103U CN202852103U CN 201220476401 CN201220476401U CN202852103U CN 202852103 U CN202852103 U CN 202852103U CN 201220476401 CN201220476401 CN 201220476401 CN 201220476401 U CN201220476401 U CN 201220476401U CN 202852103 U CN202852103 U CN 202852103U
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure regulator
- self
- spool
- temperature environment
- 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.)
- Expired - Fee Related
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a valve, relates to the field of air separation or liquefaction of natural gas or vaporization transformation, and particularly relates to a self-operated pressure regulator suitable for low-temperature environment. A valve core (4) of the pressure regulator is connected with a valve rod (7), the valve rod (7) stretches out of a valve body (2) from a valve cover (3) and is connected with a regulating device, and the regulating device is composed of a corrugated pipe (10) which is arranged in the valve cover (3) and a top cover (9), a spring (11) and a pressure regulating rod (12). The pressure regulating rod (12) is arranged on the top cover (9), and the corrugated pipe (10) and the spring (11) are supported between the end face of the valve rod (7) and the pressure regulating rod (12). The self-operated pressure regulator suitable for the low-temperature environment has the advantages of being still capable of keeping good stability under the ultralow temperature working environment. In addition, the self-operated pressure regulator is non-padding design, and greatly preventing faults of the pressure regulator, such as 'escaping', 'emitting', 'leaking' and 'dropping'.
Description
Technical field
The utility model relates to the conversion field of air separation or natural gas liquefaction or vaporization, relates to more specifically a kind of self-contained pressure regulator that is applicable to low temperature environment.
Background technique
In the air separation field, be used for the modulating valve of decompression, voltage stabilizing or safety relief in the vaporization of the natural gas liquefaction in the modulating valve of decompression, voltage stabilizing or safety relief of liquid air, liquid nitrogen, liquid oxygen, liquid argon gas or rock gas field or liquified natural gas.And existing self-contained pressure regulator can't adapt to ultralow temperature (60～-250 ℃) environment, perhaps can't accomplish the bore of DN50～DN250 under low temperature like this; Perhaps control is unstable easily under low-temperature condition, finally has influence on the stability of pilot pressure.
The model utility content
The purpose of this utility model is to provide a kind of self-contained pressure regulator that is applicable to low temperature environment, has solved existing direct-operated regulator can not keep good use state under low-temperature condition problem.
For addressing the above problem, technical solution adopted in the utility model is:
A kind of self-contained pressure regulator that is applicable to low temperature environment, comprise bottom, valve body, valve gap and spool, described bottom and valve gap are installed in respectively the top and bottom of valve body, spool is installed in the interior cavity of valve body, described valve body both sides have import and export, described spool is connected with connecting rod, connecting rod stretches out valve body and is connected with controlling device from valve gap, described controlling device is by the bellows that is installed in valve gap and the top cover, spring and pressure regulating lever consist of, the pressure regulating lever is installed on the top cover, and bellows and spring supporting are between connecting rod end face and pressure regulating lever.
For making the utility model play better technique effect:
Further technological scheme is to be provided with upper valve base and lower valve base in the cavity of above-mentioned valve body, described upper valve base and lower valve base all have valve port, spool be provided with two respectively with upper valve base and lower valve base on the mutual close-fitting end face of valve port, because two end faces of spool and the opening-closing structure of two valve ports, making pressure behind pressure and the valve before the valve all is to act on simultaneously on the identical end face of two areas at any time, when pressure at two ends is inconsistent, spool is moved, before the valve and the pressure behind the valve just can not influence each other yet, play very high stabilized seal.
Further technological scheme is to be provided with the stiffening rib that parallels with connecting rod between above-mentioned two end faces of spool, and stiffening rib can make spool bearing not yielding in the situation of high pressure or deflection, keeps stable sealing.
The beneficial effect that adopts technique scheme to produce is: because corrugated tube still has stable performance under low temperature environment, use it in the modulating valve with the open and-shut mode of spring effect spool, can make modulating valve under the working environment of ultralow temperature, still can keep good stability; In addition, the utility model can without filler, prevent that greatly the faults such as " race ", " emitting ", " leakage ", " dripping " from may appear in modulating valve.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Following the utility model is done and is described in further detail:
As shown in Figure 1: a kind of self-contained pressure regulator that is applicable to low temperature environment, comprise bottom 1, valve body 2, valve gap 3 and spool 4, described bottom 1 and valve gap 3 are installed in respectively the top and bottom of valve body 2, spool 4 is installed in the cavity in the valve body 2, described valve body 2 both sides have import and export, described spool 4 is connected with valve rod 7, valve rod 7 stretches out valve body 2 and is connected with controlling device from valve gap 3, described controlling device is by the bellows 10 that is installed in valve gap 3 and the top cover 9, spring 11 and pressure regulating lever 12 consist of, pressure regulating lever 12 is installed on the top cover 9, and bellows 10 and spring 11 are supported between connecting rod 7 end faces and the pressure regulating lever 12.Can be further in the present embodiment: be provided with upper valve base 5 and lower valve base 6 in the cavity of valve body 2, described upper valve base 5 and lower valve base 6 all have valve port, spool 4 be provided with two respectively with upper valve base 5 and lower valve base 6 on the mutual close-fitting end face of valve port, because two end faces of spool 4 and the opening-closing structure of two valve ports, making pressure behind pressure and the valve before the valve all is to act on simultaneously on the identical end face of two areas at any time, when pressure at two ends is inconsistent, spool 4 is moved, before the valve and the pressure behind the valve just can not influence each other yet, play very high stabilized seal; Be provided with the stiffening rib 8 that parallels with connecting rod 7 between 4 two end faces of spool, stiffening rib 8 can make spool 4 bearing not yielding in the situation of high pressure or deflection, keeps stable sealing.
Claims (3)
1. self-contained pressure regulator that is applicable to low temperature environment, comprise bottom (1), valve body (2), valve gap (3) and spool (4), described bottom (1) and valve gap (3) are installed in respectively the top and bottom of valve body (2), spool (4) is installed in the interior cavity of valve body (2), described valve body (2) both sides have import and export, it is characterized in that: described spool (4) is connected with valve rod (7), valve rod (7) stretches out valve body (2) and is connected with controlling device from valve gap (3), described controlling device is by the bellows (10) that is installed in valve gap (3) and the top cover (9), spring (11) and pressure regulating lever (12) consist of, pressure regulating lever (12) is installed on the top cover (9), and bellows (10) and spring (11) are supported between connecting rod (7) end face and the pressure regulating lever (12).
2. the self-contained pressure regulator that is applicable to low temperature environment according to claim 1, it is characterized in that: be provided with upper valve base (5) and lower valve base (6) in the cavity of described valve body (2), described upper valve base (5) and lower valve base (6) all have valve port, spool (4) be provided with two respectively with upper valve base (5) and lower valve base (6) on the mutual close-fitting end face of valve port.
3. the self-contained pressure regulator that is applicable to low temperature environment according to claim 2 is characterized in that: be provided with the stiffening rib (8) that parallels with valve rod (7) between (4) two end faces of described spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476401 CN202852103U (en) | 2012-09-14 | 2012-09-14 | Self-operated pressure regulator suitable for low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476401 CN202852103U (en) | 2012-09-14 | 2012-09-14 | Self-operated pressure regulator suitable for low-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852103U true CN202852103U (en) | 2013-04-03 |
Family
ID=47983308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220476401 Expired - Fee Related CN202852103U (en) | 2012-09-14 | 2012-09-14 | Self-operated pressure regulator suitable for low-temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202852103U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775679A (en) * | 2013-12-31 | 2014-05-07 | 丹佛斯公司 | Three-way valve for converging and dividing flow |
| CN103821981A (en) * | 2014-03-20 | 2014-05-28 | 浙江科海仪表有限公司 | Self-operated internal pressure collecting type adjusting valve |
| CN103821980A (en) * | 2014-03-20 | 2014-05-28 | 浙江科海仪表有限公司 | Bellows-balance self-operated inner pressure measurement type regulating valve |
| CN105889588A (en) * | 2016-04-21 | 2016-08-24 | 杭州艾诺流体控制仪表有限公司 | Lining fluorine self-operated double-seat pressure adjusting valve |
| CN106763944A (en) * | 2016-11-24 | 2017-05-31 | 新乡航空工业(集团)有限公司 | A kind of corrugated tube sealing structure temperature-adjustment pressure-adjustment valve |
| CN107725788A (en) * | 2017-11-22 | 2018-02-23 | 上海核阀门股份有限公司 | Two-seater voltage-stablizer spray valve |
-
2012
- 2012-09-14 CN CN 201220476401 patent/CN202852103U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775679A (en) * | 2013-12-31 | 2014-05-07 | 丹佛斯公司 | Three-way valve for converging and dividing flow |
| CN103821981A (en) * | 2014-03-20 | 2014-05-28 | 浙江科海仪表有限公司 | Self-operated internal pressure collecting type adjusting valve |
| CN103821980A (en) * | 2014-03-20 | 2014-05-28 | 浙江科海仪表有限公司 | Bellows-balance self-operated inner pressure measurement type regulating valve |
| CN103821981B (en) * | 2014-03-20 | 2016-03-23 | 浙江科海仪表有限公司 | Pressure type modulating valve in self-powering type |
| CN105889588A (en) * | 2016-04-21 | 2016-08-24 | 杭州艾诺流体控制仪表有限公司 | Lining fluorine self-operated double-seat pressure adjusting valve |
| CN106763944A (en) * | 2016-11-24 | 2017-05-31 | 新乡航空工业(集团)有限公司 | A kind of corrugated tube sealing structure temperature-adjustment pressure-adjustment valve |
| CN107725788A (en) * | 2017-11-22 | 2018-02-23 | 上海核阀门股份有限公司 | Two-seater voltage-stablizer spray valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202852103U (en) | Self-operated pressure regulator suitable for low-temperature environment | |
| CN203560500U (en) | Novel cryogenic fixed ball valve | |
| CN204922016U (en) | Hard sealing sleeve governing valve of bivalve core | |
| CN201636340U (en) | Ultra-low temperature valve | |
| CN202580275U (en) | Valve rod back seal structure for ultralow-temperature valve | |
| CN107917201A (en) | A kind of butterfly valve with self-lubricating function | |
| CN201902627U (en) | Fuel gas pressure regulator | |
| CN203147268U (en) | Skid-mounted LNG (liquefied natural gas) bottle group gasification supply station | |
| CN205089998U (en) | Empty sylphon seal self -operated pressure control valve of fidelity | |
| CN202659956U (en) | Valve with pressure releasing hole structure | |
| CN205026380U (en) | Medical gaseous busbar | |
| CN204042108U (en) | Low temperature cylinder pressure maintaining valve | |
| CN203940016U (en) | A kind of hand valve for sealed knot low-temperature (low temperature) vessel vacuum port | |
| CN204153464U (en) | A kind of LNG storage tank | |
| CN203604711U (en) | Non-ice-blocking high pressure difference full-balance type pressure regulator | |
| CN204437361U (en) | A kind of three-way air valve | |
| CN204502476U (en) | A kind of gas-liquid separator for cryogenic liquid | |
| CN204004132U (en) | High leak tightness nitrogen spring | |
| CN205477954U (en) | Gas engine air -fuel ratio automatic regulating system | |
| CN204988662U (en) | Butterfly valve gas tightness can measuring equipment | |
| CN205013844U (en) | Low -temperature type pneumatic film single seat governing valve | |
| CN203743552U (en) | Pressure reduction valve structure for controlling conveying of oil | |
| CN204372543U (en) | Liquified natural gas tank | |
| CN205189814U (en) | Controllable pressure formula sucker rod preventer | |
| CN202756691U (en) | Duplex ball valve for gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20160914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |