CN2612842Y - Circulation opposite flushing type regulating valve - Google Patents
Circulation opposite flushing type regulating valve Download PDFInfo
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- CN2612842Y CN2612842Y CN 03220760 CN03220760U CN2612842Y CN 2612842 Y CN2612842 Y CN 2612842Y CN 03220760 CN03220760 CN 03220760 CN 03220760 U CN03220760 U CN 03220760U CN 2612842 Y CN2612842 Y CN 2612842Y
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Abstract
The utility model discloses a circulation direct impact control valve, which comprises a disc, wherein a plurality of homocentric ring grooves are arranged on the disc, two adjacent ring grooves are communicated through a plurality of radial grooves, the ring grooves of an outer ring and an inner ring are respectively communicated with a water inlet and a water outlet through the radial grooves. The utility model is capable of effectively overcoming cavitation phenomena of the control valve under high pressure difference, and is suitable for regulation and controlling of engineering fluid under all high pressure different conditions. The utility mode has the advantages that pressure drop effect is better than a labyrinth disc, anti cavitation effect is better, and service life is longer.
Description
Technical field
The utility model relates to a kind of modulating valve.
Background technique
Along with the extensive use of high speed development of national economy and computer automation control technique, more and more to the demand of autocontrol valve.Autocontrol valve is the main trend of valve development during modern industry production and logistics are carried, and modulating valve is one of autocontrol valve, reaches the control action of manufacturing process by the rate-of flow of regulating system.Under the High Pressure Difference condition, modulating valve unavoidably can produce cavitation erosion in the Flow-rate adjustment process, makes the valve premature failure, the serious safety with the operation of harm system.
High-differential-pressure regulating valve is more in sector applications such as thermal power plant and petrochemical industries, relies on import at present basically, and such modulating valve is subject to cavitation owing to move on the sealing surface under High Pressure Difference, and the life-span is short, has a strong impact on the normal operation of device.In imported product, some quality is better, but costs an arm and a leg, and except that cost of equipment, also need pay suitable patent fee, and some imported product quality can not satisfy usage requirement.
Summary of the invention
The purpose of this utility model is: a kind of circulation formula modulating valve that liquidates is provided, this modulating valve adopts circulation formula disc that liquidates, carrying out multistage step-down and fluid liquidates, overcome cavitation phenomenons effectively, prolonged the working life of valve, and designed with the flow resistance of uniqueness, the Flow characteristics that valve is intrinsic has been carried out the correction of science, compensated the adverse effect of system's pressure reduction variation, actual working characteristics is tending towards rationally, can successfully realize omnidistance flow control Flow characteristics.
The technical solution of the utility model is: a kind of circulation formula modulating valve that liquidates, comprise disc, described disc is provided with some concentric circular grooves, link up by several radial grooves between two adjacent circular grooves, the circular groove of outer shroud and interior ring communicates with water intake and water outlet respectively by radial groove.
The further technological scheme of the utility model is: a kind of circulation formula modulating valve that liquidates, comprise disc, described disc is provided with some concentric circular grooves, link up by several radial grooves between two adjacent circular grooves, the circular groove of outer shroud and interior ring communicates with water intake and water outlet respectively by radial groove; Described radial groove five equilibrium on circular groove is uniform, on the same circular groove in the outer part and radial groove position in the inner part stagger, and inboard radial groove is on the radius of the mid point of circular arc between the two outer radial grooves.
The utility model has the advantages that:
1. the utility model is compared with the mazy type disc that uses in the past, shape is similar and function and principle have very big difference, the mazy type disc is several groove independently separately of processing on disk, the groove path is tortuous how curved, change flow direction by tens times even tens times, reaching increases resistance and progressively step-down, can prevent from the step-down process, to produce cavitation and cavitation, and the utility model also is processed with several to ten several grooves on disk, and its groove is concentric circular groove, and is linked up by radial groove, ring in fluid is flowed into via radial groove by outer shroud, in flow process, a part of fluid is divided into two, dorsad diffluence, another part fluid unites two into one, converge in opposite directions, swiftly flowing molecule produces bump, friction and vortex, a large amount of consumed energies, pressure is reduced, its pressure drop effect is better than mazy type disc, and anti-cavitation effect is better, and working life is also longer.
2. groove number and size on each disc of the present utility model can change, difference according to pressure reduction in the different systems is designed the disc with different flow resistances, make this modulating valve when different opening, the flow that conforms with usage requirement can both be arranged, can compensate the distortion of actual conditions down-off characteristic preferably, make the flow automation of system regulate more sensitive and effective.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the work schematic representation of the utility model disc;
Wherein: 1 disc; 2 circular grooves; 3 radial grooves; 4 water intakes; 5 water outlets; 6 valve bodies; 7 valve seats; 8 valve rods.
Embodiment
Embodiment: as Fig. 1, shown in Figure 2, a kind of circulation formula modulating valve that liquidates, comprise valve body (6), valve seat (7), valve rod (8), several discs (1) are installed on the valve seat (6), described disc (1) is provided with some concentric circular grooves (2), link up by several radial grooves (3) between adjacent two circular grooves (2), it is uniform that radial groove (3) is gone up five equilibrium at circular groove (2), on the same circular groove (2) in the outer part and radial groove in the inner part (3) position stagger, and inboard radial groove (3) is positioned on the radius of the mid point of circular arc between the two outer radial grooves (2), and the circular groove of outer shroud and interior ring (2) communicates with water intake (4) and water outlet (5) by radial groove (3) separately.
The utility model adopts the circulation formula disc that liquidates, and can overcome the cavitation phenomenons of modulating valve under the High Pressure Difference effectively, is applicable to that engineering fluid is regulated and control under all High Pressure Difference operating modes.
1. the feed water system of boiler and main steam system in the thermal power plant
Power plant boiler water supply system pressure is higher, have from the 6-20Mpa scope, superheater cooling water modulating valve for example, reheater cooling water modulating valve and minimum discharge circulating valve, its operating mode all is high pressure and High Pressure Difference, the most dependence of these valves import, the minority production domesticization, its quality is closed only, wherein is typically the Minimum Flowrate of Feed Pump circulating valve, and this valve upstream pressure is at 14-20Mpa, outlet pressure is near normal pressure, cavitation phenomenons is very serious, and general modulating valve uses several weeks or some months will damage inefficacy, then can normally use 5-6 as adopting the utility model, life-span has been improved more than 10 times, the more important thing is to guarantee that unit normally moves, energy saving reduces maintenance expenses.
In main steam system, it is hydrophobic to be used for high pressure, adopts the utility model effect main steam hydrophobic, avoid erosion and the cavitation of high pressure steam water interface to valve seat, increases the service life.
The utility model also is applicable to the continuous blowdown system of boiler occasion and makes boiler to empty exhaust steam valve that these all are the bad working environments of High Temperature High Pressure, High Pressure Difference, and are the critical valves that guarantees unit operation, are that other conventional modulating valve can not replace.
2. in petroleum chemical industry, be widely used
The utility model is used also a lot in petrochemical industry, and initial pressure is very high during oil and gas exploitation, carry through after the suitable step-down.
Many high temperature and high pressure conditions are arranged, as the High Temperature High Pressure modulating valve that uses in the hydrocracking unit in the technological process of oil refinery.
3. Chu Kou market potential is also very big
The utility model can be project assorted for power station, oil and the chemical engineering of China's outlet, also can be directly to other country's supply of material.
Claims (2)
1. circulation formula modulating valve that liquidates, comprise disc (1), it is characterized in that: described disc (1) is provided with some concentric circular grooves (2), link up by several radial grooves (3) between adjacent two circular grooves (2), the circular groove of outer shroud and interior ring (2) communicates with water intake (4) and water outlet (5) by radial groove (3) separately.
2. the circulation according to claim 1 formula modulating valve that liquidates, it is characterized in that: it is uniform that described radial groove (3) is gone up five equilibrium at circular groove (2), on the same circular groove (2) in the outer part and radial groove in the inner part (3) position stagger, and inboard radial groove (3) is positioned on the radius of the mid point of circular arc between the two outer radial grooves (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220760 CN2612842Y (en) | 2003-03-26 | 2003-03-26 | Circulation opposite flushing type regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220760 CN2612842Y (en) | 2003-03-26 | 2003-03-26 | Circulation opposite flushing type regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2612842Y true CN2612842Y (en) | 2004-04-21 |
Family
ID=34162074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220760 Expired - Fee Related CN2612842Y (en) | 2003-03-26 | 2003-03-26 | Circulation opposite flushing type regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2612842Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956869A (en) * | 2010-10-11 | 2011-01-26 | 无锡智能自控工程有限公司 | Communicated labyrinth valve |
| CN102537647A (en) * | 2012-01-19 | 2012-07-04 | 蔡天山 | Antiscour draining valve |
| 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 |
| CN103206546A (en) * | 2013-04-10 | 2013-07-17 | 南通红星高压阀门有限公司 | Isolating type adjusting valve |
| CN105180708A (en) * | 2015-09-21 | 2015-12-23 | 上海卫星工程研究所 | Fluid allocation collector and system |
| CN105673902A (en) * | 2016-03-15 | 2016-06-15 | 湖南大唐节能科技有限公司 | Micro-flow labyrinth bypassing pressure adjusting and stabilizing valve |
| CN105927790A (en) * | 2016-06-30 | 2016-09-07 | 航天海鹰(哈尔滨)钛业有限公司 | Labyrinth type adjusting valve element with temperature control function |
| CN106439206A (en) * | 2016-11-08 | 2017-02-22 | 上海发电设备成套设计研究院 | Structure preventing washing erosion of sealing face of high-pressure adjusting valve |
| CN108412641A (en) * | 2018-06-15 | 2018-08-17 | 潍柴西港新能源动力有限公司 | Fuel gas mixer |
| CN109869522A (en) * | 2019-03-28 | 2019-06-11 | 吴忠中创自控阀有限公司 | A kind of labyrinth disk sleeve |
-
2003
- 2003-03-26 CN CN 03220760 patent/CN2612842Y/en not_active Expired - Fee Related
Cited By (12)
| 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 |
| CN101956869A (en) * | 2010-10-11 | 2011-01-26 | 无锡智能自控工程有限公司 | Communicated labyrinth valve |
| CN102537647A (en) * | 2012-01-19 | 2012-07-04 | 蔡天山 | Antiscour draining valve |
| CN103206546A (en) * | 2013-04-10 | 2013-07-17 | 南通红星高压阀门有限公司 | Isolating type adjusting valve |
| CN105180708A (en) * | 2015-09-21 | 2015-12-23 | 上海卫星工程研究所 | Fluid allocation collector and system |
| CN105673902A (en) * | 2016-03-15 | 2016-06-15 | 湖南大唐节能科技有限公司 | Micro-flow labyrinth bypassing pressure adjusting and stabilizing valve |
| CN105673902B (en) * | 2016-03-15 | 2018-05-25 | 湖南大唐节能科技有限公司 | Micrometeor labyrinth flow around type voltage-regulation voltage-stabilization valve |
| CN105927790A (en) * | 2016-06-30 | 2016-09-07 | 航天海鹰(哈尔滨)钛业有限公司 | Labyrinth type adjusting valve element with temperature control function |
| CN106439206A (en) * | 2016-11-08 | 2017-02-22 | 上海发电设备成套设计研究院 | Structure preventing washing erosion of sealing face of high-pressure adjusting valve |
| CN108412641A (en) * | 2018-06-15 | 2018-08-17 | 潍柴西港新能源动力有限公司 | Fuel gas mixer |
| CN109869522A (en) * | 2019-03-28 | 2019-06-11 | 吴忠中创自控阀有限公司 | A kind of labyrinth disk sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040421 Termination date: 20110326 |