CN201348054Y - High-temperature steam governing valve - Google Patents
High-temperature steam governing valve Download PDFInfo
- Publication number
- CN201348054Y CN201348054Y CNU2008202384896U CN200820238489U CN201348054Y CN 201348054 Y CN201348054 Y CN 201348054Y CN U2008202384896 U CNU2008202384896 U CN U2008202384896U CN 200820238489 U CN200820238489 U CN 200820238489U CN 201348054 Y CN201348054 Y CN 201348054Y
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- sleeve
- valve
- temperature steam
- innermost layer
- guide ring
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Abstract
The utility model discloses a high-temperature steam governing valve which comprises a middle valve rod and an internal position of a valve body, wherein the internal position of the valve body comprises a plurality layers of sleeve barrels, a guide ring and a valve seat, the sleeve barrel in the innermost layer is sleeved on the outside of the valve rod, the upper portions of the rest sleeve barrels are welded with the guide ring on the upper side of the sleeve barrel, and the sleeve barrel in the innermost layer and the welded piece are pressed on the valve seat on the lower portion of the sleeve barrel. The sleeve barrels can reduce pressure step by step, and evenly distributed throttling small holes have bigger flow resistance coefficients, and can effectively prevent the impact to the internal caused by the sudden reduction of pressure. Gaps between the sleeve barrels can satisfy the requirement of a sound absorption structure of a porous plate, the structure can enable sound wave to shrink, expand and rub in the holes and the gaps, continuously consumes the energy of sound wave, can well absorb certain frequency, lowers noise, and can basically eliminate 20-30 db noise.
Description
Technical field
The utility model relates to a kind of valve, especially for the high-temperature steam modulating valve of firepower electrical plant high-temperature steam.
Background technique
Along with fast development of Chinese economy, the medium of various High Temperature High Pressure has proposed higher harsher requirement to modulating valve market, and various operating mode is also more and more stronger to the demand of low noise.High Temperature High Pressure market is monopolized by offshore company substantially at present, and abroad as High Temperature High Pressure low noise modulating valve that released one after another such as Fisher, Samson, CCI, German Ah Ka, Japanese mountain forces, release has produced good effect behind the market.
Domestic high-temperature steam modulating valve has only one deck jacket casing outside valve rod at present, and one deck sleeve is difficult to resist the bust of ambient pressure, and sleeve is washed out easily.
The model utility content
Technical problem to be solved in the utility model provides a kind of high-temperature steam modulating valve that can reduce the bust of pressure to the impact of internals.
In order to address the above problem, the utility model is taked following technological scheme:
A kind of high-temperature steam modulating valve, valve rod and valve body internals position in the middle of comprising, valve body internals position is made up of multilayer sleeve, guide ring and valve seat, the innermost layer jacket casing is outside valve rod, all the other upper cartridge all with the guide ring welding of sleeve top, innermost layer sleeve and this weldment are pressed on the valve seat of sleeve below together.
Every layer of sleeve all has the throttling pore as runner.
The sleeve number of plies is 2～6 layers.
It is characterized in that, between the sleeve of innermost layer and the valve rod by compressing a spring energy-storage seal ring.
The beneficial effects of the utility model are: the multilayer sleeve can reduce pressure step by step, and uniform throttling pore has bigger flow resistance coefficient, can effectively prevent the impact of the bust of pressure to internals.The requirement of porous slab sound absorption structure is satisfied in space between sleeve, this kind structure can allow sound wave shrink in hole and gap, expand and rub, and constantly consumes acoustic wave energy, the certain frequency of energy good absorption, reduce noise, can abate the noise about 20～30 decibels basically.
Description of drawings
Fig. 1 is embodiment's a sectional view;
Fig. 2 is the A portion enlarged view of Fig. 1.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
See figures.1.and.2 valve rod 1 and valve body internals part in the middle of the high-temperature steam modulating valve comprises.Valve body internals position is made up of multilayer sleeve 2, guide ring 3 and valve seat 4.The innermost layer jacket casing is outside valve rod 1, the side section of innermost sleeve is a boss shape, top guide ring 3 adapts to this sleeve 2 structures, be pressed on the base of this boss, hence one can see that, guide ring 3 is pressed on the sleeve 2 of innermost layer outside the valve rod, all the other upper cartridge all with guide ring 3 welding of sleeve top, innermost layer sleeve and this weldment are pressed on the valve seat 4 of sleeve below together.A spring energy-storage seal ring 5 is arranged between the sleeve 2 of innermost layer and the valve rod 1, play seal action.Because the valve body internals are in the flowing medium of High Pressure Difference, be easy under the active force of fluid, rotate, so adopt welded structure.According to the difference of pressure reduction, bore, sleeve is divided into the different numbers of plies, and pressure reduction is generally at 0～7MPa, and the sleeve number of plies is generally 2～6 layers.For example the valve of ANSI600 DN150 if pressure reduction reaches 4.0MPa, can adopt 4 layers of sleeve according to calculating, if pressure reduction reaches 3.0MPa, then need only get final product by 3 layers of sleeve.
Every layer of sleeve is all to open throttling pore 6 as runner.When flowing medium was flowed through the valve body internals, the sleeve that has throttling pore had following effect so:
1, can reduce pressure step by step, uniform throttling pore has bigger flow resistance coefficient, can effectively prevent the impact of the bust of pressure to internals.
2, the requirement of porous slab sound absorption structure is satisfied in the space between sleeve, this kind structure can allow sound wave shrink in hole and gap, expand and rub, and constantly consumes acoustic wave energy, the certain frequency of energy good absorption, reduce noise, can abate the noise about 20～30 decibels basically.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1, a kind of high-temperature steam modulating valve, valve rod and valve body internals position in the middle of comprising, it is characterized in that, valve body internals position is made up of multilayer sleeve, guide ring and valve seat, the innermost layer jacket casing is outside valve rod, all the other upper cartridge all with the guide ring welding of sleeve top, innermost layer sleeve and this weldment are pressed on the valve seat of sleeve below together.
2, high-temperature steam modulating valve according to claim 1 is characterized in that, every layer of sleeve all has the throttling pore as runner.
3, high-temperature steam modulating valve according to claim 1 is characterized in that, the sleeve number of plies is 2～6 layers.
4, according to each described high-temperature steam modulating valve among the claim 1-3, it is characterized in that, between the sleeve of innermost layer and the valve rod by compressing a spring energy-storage seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202384896U CN201348054Y (en) | 2008-12-21 | 2008-12-21 | High-temperature steam governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202384896U CN201348054Y (en) | 2008-12-21 | 2008-12-21 | High-temperature steam governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348054Y true CN201348054Y (en) | 2009-11-18 |
Family
ID=41367522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202384896U Expired - Lifetime CN201348054Y (en) | 2008-12-21 | 2008-12-21 | High-temperature steam governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348054Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834655A (en) * | 2010-03-26 | 2012-12-19 | 韩国电力系统开发设计有限公司 | Fluid flow control device |
| CN102853154A (en) * | 2012-08-29 | 2013-01-02 | 江阴万讯自控设备有限公司 | High-pressure difference classification protected regulating valve |
| CN103133763A (en) * | 2012-12-31 | 2013-06-05 | 浙江中控流体技术有限公司 | Labyrinth type pressure reduction and noise reduction device |
| CN103672156A (en) * | 2013-12-17 | 2014-03-26 | 吴忠中创自控阀有限公司 | Multilevel throttling sleeve |
| CN104500754A (en) * | 2014-12-02 | 2015-04-08 | 哈电集团哈尔滨电站阀门有限公司 | High-pressure-difference multistage sleeve adjustment valve |
| CN105114641A (en) * | 2015-09-16 | 2015-12-02 | 吴忠仪表有限责任公司 | Adjustment structure with multi-layer sleeve |
| CN105899863A (en) * | 2013-11-15 | 2016-08-24 | 诺沃皮尼奥内股份有限公司 | Multistage trim for control valves |
| CN107842647A (en) * | 2017-12-01 | 2018-03-27 | 浙江华益精密机械股份有限公司 | Pressure dissipation device and valve |
| CN114135714A (en) * | 2020-09-03 | 2022-03-04 | 浙江盾安人工环境股份有限公司 | Throttle valve |
-
2008
- 2008-12-21 CN CNU2008202384896U patent/CN201348054Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834655A (en) * | 2010-03-26 | 2012-12-19 | 韩国电力系统开发设计有限公司 | Fluid flow control device |
| CN102834655B (en) * | 2010-03-26 | 2014-08-20 | 韩国电力系统开发设计有限公司 | Fluid flow control device |
| CN102853154A (en) * | 2012-08-29 | 2013-01-02 | 江阴万讯自控设备有限公司 | High-pressure difference classification protected regulating valve |
| CN102853154B (en) * | 2012-08-29 | 2014-08-13 | 江阴万讯自控设备有限公司 | High-pressure difference classification protected regulating valve |
| CN103133763A (en) * | 2012-12-31 | 2013-06-05 | 浙江中控流体技术有限公司 | Labyrinth type pressure reduction and noise reduction device |
| CN105899863A (en) * | 2013-11-15 | 2016-08-24 | 诺沃皮尼奥内股份有限公司 | Multistage trim for control valves |
| CN105899863B (en) * | 2013-11-15 | 2018-03-23 | 诺沃皮尼奥内股份有限公司 | Multistage internals for control valve |
| CN103672156A (en) * | 2013-12-17 | 2014-03-26 | 吴忠中创自控阀有限公司 | Multilevel throttling sleeve |
| CN104500754A (en) * | 2014-12-02 | 2015-04-08 | 哈电集团哈尔滨电站阀门有限公司 | High-pressure-difference multistage sleeve adjustment valve |
| CN105114641A (en) * | 2015-09-16 | 2015-12-02 | 吴忠仪表有限责任公司 | Adjustment structure with multi-layer sleeve |
| CN107842647A (en) * | 2017-12-01 | 2018-03-27 | 浙江华益精密机械股份有限公司 | Pressure dissipation device and valve |
| CN114135714A (en) * | 2020-09-03 | 2022-03-04 | 浙江盾安人工环境股份有限公司 | Throttle valve |
| CN114135714B (en) * | 2020-09-03 | 2024-04-02 | 浙江盾安人工环境股份有限公司 | Throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400700 Beibei District People's village, No. 1, Chongqing Patentee after: Chongqing Sichuan Instrument Complex Co., Ltd. Patentee after: Chongqing Chuan Instrument Control Valve Co., Ltd. Address before: 400700 Beibei District People's village, No. 1, Chongqing Patentee before: Chongqing Sichuan Instrument Complex Co., Ltd. Patentee before: Chongqing Chuanyi No.11 Factory Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |