CN103821979A - Multistage depressurization valve - Google Patents
Multistage depressurization valve Download PDFInfo
- Publication number
- CN103821979A CN103821979A CN201410062875.4A CN201410062875A CN103821979A CN 103821979 A CN103821979 A CN 103821979A CN 201410062875 A CN201410062875 A CN 201410062875A CN 103821979 A CN103821979 A CN 103821979A
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- China
- Prior art keywords
- valve
- sleeve
- valve body
- spool
- throttling
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- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
A multistage depressurization valve mainly comprises a valve body. A valve seat is installed in the valve body. A valve deck is arranged on the valve body. A valve element located on the valve seat is connected with a valve rod penetrating through the valve deck and moving vertically to achieve opening of the valve. The valve deck is fixed to the upper portion of the valve body through a sealing gasket. The valve seat is pressed into the valve body through a sleeve on the upper side and a balancing cylinder. The valve element fixedly connected with the valve rod is a balanced valve element arranged on the upper side and having the vertical pressure balanced function. The valve element is placed in the sleeve on the valve seat and can vertically move along the valve rod. The sleeve is a bore type labyrinth throttle multi-layer sleeve composed of at least two layers of sleeves, each sleeve is provided with small holes or small kidney-shaped holes, and different small-stream throttle sections can be formed when media pass through the small holes or the small kidney-shaped holes. The multistage depressurization valve has the advantages of being reasonable in structure, convenient to use, reliable in use, low in noise, stable in adjustment, capable of reducing cavitation and vibration, easy to repair, long in service life, particularly suitable for special high-pressure-difference technological process and the like.
Description
Technical field
What the present invention relates to is a kind of multilevel decompression valve, belongs to universal machine valve technology field.
Background technique
Along with industry is fast-developing, in special High Pressure Difference technological process, the requirements such as noise is low, modification stability, minimizing cavitation, minimizing vibration, easy-maintaining, long service life are proposed for the valve using in technique.Common valve mechanism cannot meet the technological requirement of above-mentioned proposition.Some inlet valves adopt the mode of labyrinth throttling groove step-downs to meet preferably these technological requirements, but deficiency is easily by rubbish jam, moreover labyrinth throttling groove processing technology is more complicated, and processing cost is higher; Therefore design a kind of novel anti-cavitation, anti-vibration, noise reduction valve extremely urgent.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, a kind of novel multilevel decompression valve is provided, come that to meet the need noise is low, modification stability, minimizing cavitation, reduce the special High Pressure Difference technological process of vibration, easy-maintaining, long service life.
The object of the invention is to complete by following technical solution, described multilevel decompression valve, it mainly comprises a valve body, valve seat is installed in valve body, above valve body, dispose valve gap, the spool being positioned on valve seat is connected with through valve gap and can moves up and down the valve rod of realizing valve opening, and described valve gap is fixed on valve body top by gasket seal; Described valve seat is crimped in valve body by described valve gap by upper surface sleeve peace weighing apparatus cylinder; The spool being connected with valve rod is the balanced type spool that has been shaped with pressure balance effect in the above, and this spool is placed in the sleeve on valve seat and can moves up and down with valve rod.
The cellular type labyrinth throttling multilayer sleeve that described sleeve is combined by least two-layer sleeve, has aperture or kidney-shaped aperture on every one deck sleeve, and described aperture or kidney-shaped aperture form the throttling section of different shallow bids when by medium.
The cellular type labyrinth throttling multilayer sleeve that described sleeve is combined by three layers of sleeve, the aperture on every one deck sleeve or kidney-shaped aperture are formed with the step-down throttling shallow bid passage that level Four is turned on different throttling sections.
Described multilayer sleeve is fixed composition by Cock screw, is provided with and not only plays isolated high low pressure medium effect, but also the seal ring that can play the guiding role to spool between the compensating cylinder that described sleeve joins above.
Described valve gap underpart is bolted on valve body top, and the upper end portion of valve gap is crimped with the filler part of valve rod being stretched out to place's sealing by a Gland.
The present invention is mainly used in the adjusting in High Pressure Difference operating mode, and it can the flow velocity of control media in trim, during for cryogenic media, can reduce cavitation, noise reduction; For normal temperature medium can noise reduction, improve degree of regulation etc.
Tube-in-tube structure of the present invention is convenient to processing, and processing cost is lower; With respect to common labyrinth throttling groove, cellular type labyrinth throttle style is difficult for blocking rubbish, easy to clean rubbish etc.; Have rational in infrastructurely, easy to use and reliable, noise is low, and modification stability can reduce cavitation, reduce vibration, easy-maintaining, long service life, is particularly useful for the features such as special High Pressure Difference technological process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is tube-in-tube structure schematic diagram of the present invention.
Fig. 3 is three layers of sleeve composite structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, multilevel decompression valve of the present invention, it mainly comprises a valve body 1, valve seat 2 is installed in valve body, above valve body, dispose valve gap 3, the spool 4 being positioned on valve seat is connected with through valve gap and can moves up and down the valve rod 5 of realizing valve opening, and described valve gap 3 is fixed on valve body 1 top by gasket seal 14; Described valve seat 2 is crimped in valve body 1 by described valve gap 3 by upper surface sleeve 6 and compensating cylinder 7; The spool 4 being connected with valve rod is the balanced type spool that has been shaped with pressure balance effect in the above, and this spool 4 is placed in the sleeve 6 on valve seat and can moves up and down with valve rod.
Valve gap of the present invention 3 underparts are bolted on valve body top, and the upper end portion of valve gap is crimped with the filler part 8 of valve rod 5 being stretched out to place's sealing by a Gland 9.
Shown in Fig. 2, the cellular type labyrinth throttling multilayer sleeve that described sleeve 6 is combined by least two-layer sleeve, has aperture or kidney-shaped aperture on every one deck sleeve, and described aperture or kidney-shaped aperture form the throttling section of different shallow bids when by medium.
Figure 3 shows that one embodiment of the present of invention, the cellular type labyrinth throttling multilayer sleeve that wherein said sleeve 6 is combined by three layers of sleeve, the aperture on every one deck sleeve or kidney-shaped aperture are formed with the step-down throttling shallow bid passage that level Four is turned on different throttling sections.
Multilayer sleeve of the present invention is by the fixing composition of Cock screw 15, is provided with and not only plays isolated high low pressure medium effect, but also the spring energy-storage shape seal ring 13 that can play the guiding role to spool 4 between the compensating cylinder 7 that described sleeve 6 joins above.
Shown in embodiment: Fig. 1,2,3, the present invention is mainly made up of valve body 1, valve seat 2, valve gap 3, spool 4, valve rod 5, sleeve 6, compensating cylinder 7, filler part 8, Gland 9, double-screw bolt 10, Full Thread FT double-screw bolt 11, pad 12, spring energy-storage shape seal ring 13, gasket seal 14 etc.Valve body 1 is connected by Full Thread FT double-screw bolt 11 with valve gap 3, and centre is pressed with gasket seal 14; Valve seat 2, sleeve 6 are also pressed in valve body 1 with compensating cylinder 7; Spool 4 is balanced type spool, pressure balance effect on the spool that has been with holes above, and spool 4 is welding as one with valve rod 5, drive lower valve core 4 in the interior motion of sleeve 6 in external force, according to spool 4 sleeve 6 position differences of living in, form throttling section difference, different pressures and traffic requirement after adjustable valve; Seal ring 13 between sleeve 6 and compensating cylinder 7 plays the low piezodielectric of isolated compensating cylinder 7 inner high voltage media and spool 4 rear ends on the one hand, play the guiding role on the other hand spool 4; Filler part 8 is pressed in valve gap 3 by Gland 9, carries out the sealing at valve rod 5 places.Sleeve 6 of the present invention is a kind of cellular type labyrinth throttle styles, specifically fixedly formed by Cock screw 15 by multilayer sleeve (first layer sleeve 16, second layer sleeve 17, the 3rd layer of sleeve 18), also different according to the different formation of pressure reduction before and after the valve sleeve number of plies, the present embodiment is three-decker, every one deck has aperture or kidney-shaped aperture, make medium in the time flowing through sleeve, be divided into different shallow bids, and carry out multistage turning at different sleeves and carry out step-down, the level Four in tube-in-tube structure is turned and is carried out step-down as shown in Figure 3.
Claims (5)
1. a multilevel decompression valve, it mainly comprises a valve body (1), valve seat (2) is installed in valve body, valve body (1) disposes valve gap (3) above, the spool (4) being positioned on valve seat (2) is connected with through valve gap (3) and can moves up and down the valve rod (5) of realizing valve opening, it is characterized in that described valve gap (3) is fixed on valve body (1) top by gasket seal (14); Described valve seat (2) is crimped in valve body (1) by described valve gap (3) by upper surface sleeve (6) and compensating cylinder (7); The spool (4) being connected with valve rod is the balanced type spool that has been shaped with pressure balance effect in the above, and this spool (4) is placed in the sleeve (6) on valve seat and can moves up and down with valve rod.
2. multilevel decompression valve according to claim 1, it is characterized in that the cellular type labyrinth throttling multilayer sleeve that described sleeve (6) is combined by least two-layer sleeve, on every one deck sleeve, have aperture or kidney-shaped aperture, and described aperture or kidney-shaped aperture form the throttling section of different shallow bids when by medium.
3. multilevel decompression valve according to claim 2, it is characterized in that the cellular type labyrinth throttling multilayer sleeve that described sleeve (6) is combined by three layers of sleeve, the aperture on every one deck sleeve or kidney-shaped aperture are formed with the step-down throttling shallow bid passage that level Four is turned on different throttling sections.
4. according to the multilevel decompression valve described in claim 2 or 3, it is characterized in that described multilayer sleeve is by the fixing composition of Cock screw (15), between the compensating cylinder (7) that described sleeve (6) joins above, be provided with and not only play isolated high low pressure medium effect, but also the spring energy-storage RunddichtringO (13) that can play the guiding role to spool (4).
5. multilevel decompression valve according to claim 1, is characterized in that valve gap (3) underpart is bolted on valve body top, and the upper end portion of valve gap is crimped with the filler part (8) of valve rod (5) being stretched out to place's sealing by a Gland (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062875.4A CN103821979A (en) | 2014-02-25 | 2014-02-25 | Multistage depressurization valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062875.4A CN103821979A (en) | 2014-02-25 | 2014-02-25 | Multistage depressurization valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103821979A true CN103821979A (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410062875.4A Pending CN103821979A (en) | 2014-02-25 | 2014-02-25 | Multistage depressurization valve |
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| CN (1) | CN103821979A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048102A (en) * | 2014-06-18 | 2014-09-17 | 中国船舶重工集团公司第七○二研究所 | Low noise control valve |
| 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 |
| CN104712826A (en) * | 2015-03-22 | 2015-06-17 | 衢州迪升工业设计有限公司 | Electromagnetic valve |
| CN109307094A (en) * | 2018-11-20 | 2019-02-05 | 福州金典工业产品设计有限公司 | Tiny air flow control valve and its adjusting method |
| CN110645382A (en) * | 2019-09-18 | 2020-01-03 | 中国船舶重工集团公司第七0七研究所九江分部 | Multi-stage throttling low-noise throttle valve structure |
| CN113251204A (en) * | 2021-05-11 | 2021-08-13 | 浙江大学 | Multi-stage sleeve type high-pressure-difference control valve sleeve structure and design optimization method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591873A1 (en) * | 1992-10-09 | 1994-04-13 | Bailey Japan Co., Ltd. | High differential pressure control valve |
| US6394134B1 (en) * | 1998-07-14 | 2002-05-28 | Kab-Ju Kwon | Control valve trim for high-pressure fluid flow |
| CN101140032A (en) * | 2006-09-05 | 2008-03-12 | 中核苏阀科技实业股份有限公司 | Flash evaporation prevention valve |
| CN201166191Y (en) * | 2008-03-28 | 2008-12-17 | 大连亨利测控仪表工程有限公司 | Labyrinth type multilevel decompression control valve |
| CN201531676U (en) * | 2009-11-03 | 2010-07-21 | 徐州阿卡控制阀门有限公司 | Labyrinth noise reduction regulating valve |
| CN201802970U (en) * | 2010-10-12 | 2011-04-20 | 浙江山能仪表有限公司 | Guide regulating valve of high-pressure multistage depressurization sleeve |
| CN203743551U (en) * | 2014-02-25 | 2014-07-30 | 杭州杭氧工装泵阀有限公司 | Multistage pressure reducing valve |
-
2014
- 2014-02-25 CN CN201410062875.4A patent/CN103821979A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591873A1 (en) * | 1992-10-09 | 1994-04-13 | Bailey Japan Co., Ltd. | High differential pressure control valve |
| US6394134B1 (en) * | 1998-07-14 | 2002-05-28 | Kab-Ju Kwon | Control valve trim for high-pressure fluid flow |
| CN101140032A (en) * | 2006-09-05 | 2008-03-12 | 中核苏阀科技实业股份有限公司 | Flash evaporation prevention valve |
| CN201166191Y (en) * | 2008-03-28 | 2008-12-17 | 大连亨利测控仪表工程有限公司 | Labyrinth type multilevel decompression control valve |
| CN201531676U (en) * | 2009-11-03 | 2010-07-21 | 徐州阿卡控制阀门有限公司 | Labyrinth noise reduction regulating valve |
| CN201802970U (en) * | 2010-10-12 | 2011-04-20 | 浙江山能仪表有限公司 | Guide regulating valve of high-pressure multistage depressurization sleeve |
| CN203743551U (en) * | 2014-02-25 | 2014-07-30 | 杭州杭氧工装泵阀有限公司 | Multistage pressure reducing valve |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048102A (en) * | 2014-06-18 | 2014-09-17 | 中国船舶重工集团公司第七○二研究所 | Low noise control valve |
| CN104048102B (en) * | 2014-06-18 | 2016-03-09 | 中国船舶重工集团公司第七○二研究所 | Low noise control valve |
| 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 |
| CN104712826A (en) * | 2015-03-22 | 2015-06-17 | 衢州迪升工业设计有限公司 | Electromagnetic valve |
| CN104712826B (en) * | 2015-03-22 | 2017-07-25 | 衢州迪升工业设计有限公司 | A kind of magnetic valve |
| CN109307094A (en) * | 2018-11-20 | 2019-02-05 | 福州金典工业产品设计有限公司 | Tiny air flow control valve and its adjusting method |
| CN109307094B (en) * | 2018-11-20 | 2023-10-24 | 夏前明 | Micro air flow regulating valve and regulating method thereof |
| CN110645382A (en) * | 2019-09-18 | 2020-01-03 | 中国船舶重工集团公司第七0七研究所九江分部 | Multi-stage throttling low-noise throttle valve structure |
| CN113251204A (en) * | 2021-05-11 | 2021-08-13 | 浙江大学 | Multi-stage sleeve type high-pressure-difference control valve sleeve structure and design optimization method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140528 |