CN103423469A - High-pressure-difference gas-solid two-phase flow regulating valve - Google Patents
High-pressure-difference gas-solid two-phase flow regulating valve Download PDFInfo
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- CN103423469A CN103423469A CN2013103546179A CN201310354617A CN103423469A CN 103423469 A CN103423469 A CN 103423469A CN 2013103546179 A CN2013103546179 A CN 2013103546179A CN 201310354617 A CN201310354617 A CN 201310354617A CN 103423469 A CN103423469 A CN 103423469A
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Abstract
The invention discloses a high pressure difference gas-solid two-phase flow regulating valve which is characterized in that: a valve cage is arranged in an inner cavity formed by the valve cover and the valve body, overflowing holes are uniformly distributed in the valve cage, and a medium from a valve inlet enters the inner cavity of the valve body through the overflowing holes in the valve cage; a throttling element is fixedly arranged in the valve body, a cylindrical inner cavity of the throttling element is communicated with a valve outlet, and throttling holes with large and small diameters are sequentially arranged on the cylindrical wall of the throttling element from top to bottom along the axial direction; the axially movable valve core is positioned in the valve cage, the valve core is provided with a cylindrical valve core inner cavity with an opening at the bottom, the throttling element is sleeved in the valve core inner cavity, and the axially movable valve core is sealed on different throttling holes of the throttling element by the cylindrical side wall of the axially movable valve core; the bottom end face of the cylindrical side wall of the valve core and the circular ring surface of the valve seat form a sealing surface. The invention separates the sealing surface from the throttling area in the whole adjusting process, and can greatly prolong the service life of the adjusting valve on the basis of ensuring the adjusting performance of the valve.
Description
Technical field
The present invention relates to High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve, more specifically say a kind of and can be applied in High Pressure Difference gas, fixed double phase flow medium, system is carried out to pressure controlled valve.
Background technique
In dry coal powder pressure gasifying technique, need modulating valve to carry out the adjusting at intermittence to the pressure of coal head tank, because the modulating valve upstream pressure is coal head tank pressure, its value reaches 5MPa, and downstream is directly emptying, so pressure reduction is very large, and the adjusting difficulty is large; On the other hand, because medium is the Dual-Phrase Distribution of Gas olid medium that gas carries coal dust, for the strong row of modulating valve internals, wash away the working life that has greatly shortened modulating valve.
Summary of the invention
The present invention is for avoiding the existing deficiency of above-mentioned prior art, provide a kind of be particularly suited for being applied in High Pressure Difference, Dual-Phrase Distribution of Gas olid medium carry out pressure controlled High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve, to the medium noise reduction that reduced pressure, extend modulating valve working life on the basis that guarantees the valve regulated performance.
The present invention is that the technical solution problem adopts following technological scheme:
The structural feature of High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve of the present invention is:
In the inner chamber formed by valve gap and valve body, valve cage is set, on described valve cage, is evenly equipped with flowing hole, from the flowing hole of medium on valve cage of valve inlet, enter body cavity;
Be fixedly installed throttle element in valve body, be connected with valve outlet port at the tubular inner chamber of described throttle element, the barrel of described throttle element is disposed with aperture from top to bottom vertically by large and little throttle orifice;
Can be arranged in valve cage by axially movable spool, described spool has the uncovered tubular valve core cavity in bottom, and described throttle element is linked in described valve core cavity, and axially movable spool is to be enclosed on the different throttle orifice of throttle element with its cylindrical sidewall; Form sealing surface with the bottom end face of the cylindrical sidewall of described spool and the toroidal surface of valve seat.
The structural feature of High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve of the present invention also is:
The barrel of described throttle element is disposed with aperture from top to bottom vertically by large and little throttle orifice.
Described throttle element is to take the WC cemented carbide as material.
The flowing hole be arranged on described valve cage is the Lower Half that is distributed in described valve cage, be in the corresponding height of throttle element zone in.
The present invention is reduced pressure to medium by valve cage, by spool and throttle element, valve is regulated, and by spool and valve seat, realizes valve seal, and compared with the prior art, beneficial effect of the present invention is embodied in:
1, in the present invention, the sealing surface of spool and bottom valve seat separates with the throttleng surface on throttle element, makes valve core sealed cover avoid the impact of high speed flow medium, can effectively alleviate the damage of valve core sealed cover.
2, the present invention, in adjustment process,, can prevent from losing efficacy because sealing surface of seat damages the valve seal caused away from throttling band due to sealing surface of seat effectively.
3, the present invention bears washing away of medium with throttle element, has therefore greatly reduced the damage for spool and sealing surface of seat, and throttle element adopts the WC Hardmetal materials greatly to improve working life, and product maintenance only need be changed throttle element and get final product.
4, the present invention is because the circulation area that valve moves to change throttle orifice in throttle element by spool realizes the adjusting to flow, during large flow, by macropore, regulate, regulate by less hole during small flow, regulate by minimum aperture during fine setting, can reach highi degree of accuracy and control.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is closed condition schematic diagram of the present invention;
Fig. 3 is spool and bottom valve seat sealing surface structure schematic diagram in the present invention;
Fig. 4 a and Fig. 4 b are respectively throttle element master in the present invention and look and the side-looking structural representation;
Fig. 5 a and Fig. 5 b are respectively bottom valve seat master in the present invention and look and the plan structure schematic diagram.
Number in the figure: 1 valve body, 2 bottom valve seats, 3 throttle elements, the large Flow-rate adjustment of 3a hole, 3b small flow adjustment hole, 3c micrometeor adjustment hole, 4 valve cages, 5 spools, 6 valve gaps.
Embodiment
Referring to Fig. 1, the structural feature of the present embodiment High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve is:
In the inner chamber formed by valve gap 6 and valve body 1, valve cage 4 is set, on valve cage 4, is evenly equipped with flowing hole, from the flowing hole of medium on valve cage 4 of valve inlet, enter body cavity; Medium can reach the purpose of decompression effectively by the flowing hole on valve cage 4.
Be fixedly installed throttle element 3 in valve body 1, be connected with valve outlet port at the tubular inner chamber of throttle element 3, the barrel of throttle element 3 is disposed with aperture from top to bottom vertically by large and little throttle orifice;
Can be arranged in valve cage 4 by axially movable spool 5, spool 5 has the uncovered tubular valve core cavity in bottom, and throttle element 3 is linked in valve core cavity, and axially movable spool 5 is the throttle orifices with its cylindrical sidewall sealing throttle element 3.
As shown in Fig. 3, Fig. 5 a and Fig. 5 b, in the present embodiment, be to form sealing surface with the bottom end face of the cylindrical sidewall of spool 5 and the toroidal surface of bottom valve seat 2, away from throttleng surface, effectively the scouring force of medium is transferred to throttleng surface due to sealing surface, avoid the damage to spool and bottom valve seat.
As shown in Fig. 4 a and Fig. 4 b, throttle element 3 is to take the WC cemented carbide as material, to improve the durability of throttle element, the throttle orifice arranged in throttle element 3 in the present embodiment on different heights three groups split, one group, top is wide-aperture large Flow-rate adjustment hole 3a, one group, the middle part small flow adjustment hole 3b that is small aperture, the micrometeor adjustment hole 3c that one group of bottom is minimum-value aperture.
The flowing hole be arranged on valve cage 4 is the Lower Half that is distributed in described valve cage 4, be in the corresponding height of throttle element 3 zone in.
Figure 1 shows that modulating valve is full-gear, medium enters and carries out body cavity by the flowing hole valve cage 4 from the valve inlet of valve body 1, throttle orifice in throttle element 3 enters the tubular inner chamber of throttle element again, finally the valve outlet port at valve body 1 flows out, and now all throttle orifices in throttle element all have overcurrent.
Spool 5 is adjusted in to the different opening that can obtain modulating valve on the relative altitude position different from throttle element 3.
Figure 2 shows that modulating valve is closed state, now the bottom end face with the cylindrical sidewall of spool 5 contacts with the toroidal surface of bottom valve seat 2, forms sealing, and modulating valve cuts out.
The present invention is in adjustment process; the sealing surface of its spool and bottom valve seat is all away from the medium throttling band; rely on sacrifice throttle element throttle orifice to protect the sealing surface of spool and bottom valve seat to avoid the impact of high speed flow, be particularly suitable for frequent keying, the technique of intermittently regulating.
Claims (4)
1. a High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve is characterized in that:
In the inner chamber formed by valve gap (6) and valve body (1), valve cage (4) is set, on described valve cage (4), is evenly equipped with flowing hole, from the flowing hole of medium on valve cage (4) of valve inlet, enter body cavity;
Be fixedly installed throttle element (3) in valve body (1), tubular inner chamber at described throttle element (3) is connected with valve outlet port, and the barrel of described throttle element (3) is disposed with aperture from top to bottom vertically by large and little throttle orifice;
Can be arranged in valve cage (4) by axially movable spool (5), described spool (5) has the uncovered tubular valve core cavity in bottom, described throttle element (3) is linked in described valve core cavity, and axially movable spool (5) is to be enclosed on the different throttle orifice of throttle element (3) with its cylindrical sidewall; Form sealing surface with the bottom end face of the cylindrical sidewall of described spool (5) and the toroidal surface of valve seat (2).
2. High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve according to claim 1, it is characterized in that: the barrel of described throttle element (3) is disposed with aperture from top to bottom vertically by large and little throttle orifice.
3. High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve according to claim 1 and 2, it is characterized in that: described throttle element (3) is to take the WC cemented carbide as material.
4. High Pressure Difference Dual-Phrase Distribution of Gas olid modulating valve according to claim 1 and 2, it is characterized in that: the flowing hole be arranged on described valve cage (4) is the Lower Half that is distributed in described valve cage (4), be in the corresponding height of throttle element (3) zone in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310354617.9A CN103423469B (en) | 2013-08-15 | 2013-08-15 | High-pressure-difference gas-solid two-phase flow regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310354617.9A CN103423469B (en) | 2013-08-15 | 2013-08-15 | High-pressure-difference gas-solid two-phase flow regulating valve |
Publications (2)
| Publication Number | Publication Date |
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| CN103423469A true CN103423469A (en) | 2013-12-04 |
| CN103423469B CN103423469B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310354617.9A Active CN103423469B (en) | 2013-08-15 | 2013-08-15 | High-pressure-difference gas-solid two-phase flow regulating valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224572A (en) * | 2016-09-20 | 2016-12-14 | 合肥通用机械研究院 | Double spool double-sealing face regulation valve |
| CN109099621A (en) * | 2018-09-04 | 2018-12-28 | 珠海格力电器股份有限公司 | Throttling set and air conditioner |
| CN110388504A (en) * | 2018-04-18 | 2019-10-29 | 现代自动车株式会社 | Operating pressure control valve device for fuel cell system |
| CN110440013A (en) * | 2018-05-02 | 2019-11-12 | 岳民学 | Lower resistance shut-off valve (dangerous material use) |
| CN111379889A (en) * | 2018-12-28 | 2020-07-07 | 浙江三花制冷集团有限公司 | Flow control valve and method of assembling the same |
| CN111379873A (en) * | 2018-12-28 | 2020-07-07 | 浙江三花制冷集团有限公司 | Flow control valve |
| CN112555428A (en) * | 2020-12-15 | 2021-03-26 | 合肥通用机械研究院有限公司 | Gradually-expanding and neck-bending ball belly type black water angle valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2190205Y (en) * | 1994-06-03 | 1995-02-22 | 曾祥炜 | Shutoff valve |
| JPH0893964A (en) * | 1994-09-20 | 1996-04-12 | Yamatake Honeywell Co Ltd | Valve device |
| CN201671596U (en) * | 2010-05-31 | 2010-12-15 | 刘子良 | Outer sleeve corbula-type throttle valve |
| CN202371283U (en) * | 2011-12-23 | 2012-08-08 | 上海希希埃动力控制设备有限公司 | Cage hood for pressure and temperature reducing valve |
-
2013
- 2013-08-15 CN CN201310354617.9A patent/CN103423469B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2190205Y (en) * | 1994-06-03 | 1995-02-22 | 曾祥炜 | Shutoff valve |
| JPH0893964A (en) * | 1994-09-20 | 1996-04-12 | Yamatake Honeywell Co Ltd | Valve device |
| CN201671596U (en) * | 2010-05-31 | 2010-12-15 | 刘子良 | Outer sleeve corbula-type throttle valve |
| CN202371283U (en) * | 2011-12-23 | 2012-08-08 | 上海希希埃动力控制设备有限公司 | Cage hood for pressure and temperature reducing valve |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224572A (en) * | 2016-09-20 | 2016-12-14 | 合肥通用机械研究院 | Double spool double-sealing face regulation valve |
| CN110388504A (en) * | 2018-04-18 | 2019-10-29 | 现代自动车株式会社 | Operating pressure control valve device for fuel cell system |
| CN110388504B (en) * | 2018-04-18 | 2022-04-01 | 现代自动车株式会社 | Operating pressure regulating valve device for fuel cell system |
| CN110440013A (en) * | 2018-05-02 | 2019-11-12 | 岳民学 | Lower resistance shut-off valve (dangerous material use) |
| CN109099621A (en) * | 2018-09-04 | 2018-12-28 | 珠海格力电器股份有限公司 | Throttling set and air conditioner |
| CN111379889A (en) * | 2018-12-28 | 2020-07-07 | 浙江三花制冷集团有限公司 | Flow control valve and method of assembling the same |
| CN111379873A (en) * | 2018-12-28 | 2020-07-07 | 浙江三花制冷集团有限公司 | Flow control valve |
| CN111379889B (en) * | 2018-12-28 | 2022-07-12 | 浙江三花制冷集团有限公司 | Flow control valve and method of assembling the same |
| CN111379873B (en) * | 2018-12-28 | 2022-07-29 | 浙江三花制冷集团有限公司 | Flow control valve |
| CN112555428A (en) * | 2020-12-15 | 2021-03-26 | 合肥通用机械研究院有限公司 | Gradually-expanding and neck-bending ball belly type black water angle valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103423469B (en) | 2015-09-30 |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY Research Institute |
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