CN203421182U - Multistage depressurization adjusting valve - Google Patents
Multistage depressurization adjusting valve Download PDFInfo
- Publication number
- CN203421182U CN203421182U CN201320538871.XU CN201320538871U CN203421182U CN 203421182 U CN203421182 U CN 203421182U CN 201320538871 U CN201320538871 U CN 201320538871U CN 203421182 U CN203421182 U CN 203421182U
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- valve
- accumulation
- decompression
- valve seat
- seal ring
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Abstract
The utility model relates to a multistage depressurization adjusting valve and mainly solves the problems that flash and cavitation, which causes valve cavitation, occur in existing adjusting valves under work conditions with high pressure difference. The multistage depressurization adjusting valve is characterized in that a valve seat (3) is of a cup shape, a plurality of depressurizing holes (7) are formed in each of the valve seat (3) and a lower sleeve (6), a plurality of adjusting holes (8) matched with the depressurizing holes (7) are formed in the lower portion of a valve element (4). Due to the fact that the multistage depressurization adjusting valve adopts the sleeve valve set with the depressurizing holes, fluid damping is increased, flow rate of a valve is lowered, overall performance of equipment is increased, and the valve is long in service life, low in noise and capable of operating stably for a long term.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of multilevel decompression modulating valve.
Background technique
Valve is the controlling component in fluid delivery system, has water conservancy diversion, dams, adjusting, throttling, prevents the functions such as refluence, shunting or overflow pressure relief.Present modulating valve is because inner parts structure is more single, in the operating mode of High Pressure Difference, and because the pressure reduction of medium is larger, the too fast phenomenon that there will be flash distillation, cavitation of valve flow velocity, when causing valve working, noise is larger, affects working environment.Simultaneously due to the appearance of flash distillation cavitation phenomenon, cause fluid to seriously the washing away of trim, valve is caused to Cavitation.
Model utility content
In order to overcome the deficiency of background technique, the utility model provides a kind of multilevel decompression modulating valve, has mainly solved existing modulating valve in the operating mode of High Pressure Difference, occurs flash distillation and cavitation phenomenon, valve is caused to the problem of Cavitation.
The technological scheme that the utility model adopts is: a kind of multilevel decompression modulating valve, comprise valve body, valve rod, valve seat, on described valve rod, be connected with spool, described valve body is provided with competing upper bush, lower sleeve, described valve seat is cup-shaped, described valve seat, lower sleeve are provided with some decompression holes, and described spool bottom is provided with the some adjustment holes with decompression hole adaptation.
Described decompression hole is located at bottom and the side of valve seat.
Between described upper bush, lower sleeve, be provided with accumulation of energy seal ring, described spool has the primary importance and the second place separated with accumulation of energy seal ring of extruding accumulation of energy seal ring.
On described upper bush, be extended with the first projection, be extended with the second projection on described lower sleeve, the first described projection and the second projection complement each other to form the groove with accumulation of energy seal ring adaptation.Described spool is provided with equalizing orifice.
Between described valve seat and valve body, be provided with gasket seal.
Described accumulation of energy seal ring includes ring body, and described ring body is enclosed with counterbalance spring, and described ring body consists of teflon.
The beneficial effects of the utility model are: adopt a plurality of telescoping valve groups that are provided with decompression hole, increase fluid damping, thereby reduce the flow velocity of valve, improved equipment overall performance, valve long service life, noise is little, can long-term stable operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view at Figure 1A place.
1-valve body in figure, 2-valve rod, 3-valve seat, 4-spool, 41-equalizing orifice, 5-upper bush, 51-the first projection, 6-lower sleeve, 61-the second projection, 7-decompression hole, 8-adjustment hole, 9-accumulation of energy seal ring, 91-ring body, 92-counterbalance spring, 10-groove, 11-gasket seal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1 with Figure 2, a kind of multilevel decompression modulating valve, comprise valve body 1, valve rod 2, valve seat 3, on described valve rod 2, be connected with spool 4, described valve body 1 is provided with competing upper bush 5, lower sleeve 6, described valve seat 3 is cup-shaped, and described valve seat 3, lower sleeve 6 are provided with some decompression holes 7, and described spool 4 bottoms are provided with the some adjustment holes 8 with decompression hole 7 adaptations.Suitably control spool 4 positions, can pass through flow and the flow velocity of adjustment hole 8 control medias.
Described decompression hole 7 is located at bottom and the side of valve seat 3.On the valve seat 3 of cup-shaped, offer decompression hole 7, increase fluid damping.
Between described upper bush 5, lower sleeve 6, be provided with accumulation of energy seal ring 9, described spool 4 has the primary importance and the second place separated with accumulation of energy seal ring 9 of extruding accumulation of energy seal ring 9.Spool 4 is under valve rod 2 drives, and extruding accumulation of energy seal ring 9, forms sealing.
On described upper bush 5, be extended with the first projection 51, be extended with the second projection 61 on described lower sleeve 6, the first described projection 51 and the second projection 61 complement each other to form the groove 10 with accumulation of energy seal ring 9 adaptations.Compact structure, good airproof performance.Described spool 4 is provided with equalizing orifice 41.Balance valve core 4 pressure at both sides, improve valve sensitivity, and valve responds is fast.
Between described valve seat 3 and valve body 1, be provided with gasket seal 11.Improve mechanism's sealing.
Described accumulation of energy seal ring 9 includes ring body 91, and described ring body 91 is enclosed with counterbalance spring 92, and described ring body 91 consists of teflon.After ring body 91 wearing and tearing or elastic force decline, counterbalance spring 92 starts that supporting comes realizes sealing compensation, has improved the working life of mechanism.
The concrete use of the utility model is as follows: during valve opening, valve body 1 inside is provided with upper bush 5 and the lower sleeve 6 that surface distributed has decompression hole 7, fluid flow damping due to medium when through sleeve and spool 4 increases, play slow hypotensive effect, medium can not produce bubble cavitation valve, the impact noise while yet reducing fluid through valve simultaneously; Spool 4, under valve rod 2 drives, pushes counterbalance spring 92, enters the medium of equalizing orifice 41, cannot be by the sealing surface between spool 4 and upper bush 5; The coated counterbalance spring 92 of ring body 91, counterbalance spring 92 is interference fit with groove 10.After seal ring work a period of time, due to reasons such as wearing and tearing, extruding, distortion, size can change to some extent, and now counterbalance spring 92 starts to support to come and realizes sealing compensation, the sealing of compensation can guarantee that Sealing works on, and realizes the function of permanent stabilized seal.
The beneficial effect of model utility is: adopt a plurality of telescoping valve groups that are provided with decompression hole, increase fluid damping, thereby reduce the flow velocity of valve, improved equipment overall performance, valve long service life, noise is little, can long-term stable operation.
Claims (7)
1. a multilevel decompression modulating valve, comprise valve body (1), valve rod (2), valve seat (3), on described valve rod (2), be connected with spool (4), described valve body (1) is provided with competing upper bush (5), lower sleeve (6), it is characterized in that: described valve seat (3) is cup-shaped, described valve seat (3), lower sleeve (6) are provided with some decompression holes (7), and described spool (4) bottom is provided with the some adjustment holes (8) adaptive with decompression hole (7).
2. multilevel decompression modulating valve according to claim 1, is characterized in that: described decompression hole (7) is located at bottom and the side of valve seat (3).
3. multilevel decompression modulating valve according to claim 1, it is characterized in that: between described upper bush (5), lower sleeve (6), be provided with accumulation of energy seal ring (9), described spool (4) has the primary importance and the second place separated with accumulation of energy seal ring (9) of extruding accumulation of energy seal ring (9).
4. multilevel decompression modulating valve according to claim 3, it is characterized in that: on described upper bush (5), be extended with the first projection (51), on described lower sleeve (6), be extended with the second projection (61), described the first projection (51) complements each other to form the groove (10) adaptive with accumulation of energy seal ring (9) with the second projection (61).
5. multilevel decompression modulating valve according to claim 1, is characterized in that: described spool (4) is provided with equalizing orifice (41).
6. multilevel decompression modulating valve according to claim 1, is characterized in that: between described valve seat (3) and valve body (1), be provided with gasket seal (11).
7. multilevel decompression modulating valve according to claim 1, is characterized in that: described accumulation of energy seal ring (9) includes ring body (91), and described ring body (91) is enclosed with counterbalance spring (92), and described ring body (91) consists of teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538871.XU CN203421182U (en) | 2013-09-02 | 2013-09-02 | Multistage depressurization adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538871.XU CN203421182U (en) | 2013-09-02 | 2013-09-02 | Multistage depressurization adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421182U true CN203421182U (en) | 2014-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320538871.XU Expired - Fee Related CN203421182U (en) | 2013-09-02 | 2013-09-02 | Multistage depressurization adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421182U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939624A (en) * | 2014-05-09 | 2014-07-23 | 杭州华惠阀门有限公司 | Reducing valve |
| CN104179988A (en) * | 2014-07-27 | 2014-12-03 | 成都国光电子仪表有限责任公司 | Multi-level flow regulating valve |
| CN104179987A (en) * | 2014-07-27 | 2014-12-03 | 成都国光电子仪表有限责任公司 | Natural gas flow regulating valve with multiple gas inlet positions |
| CN104265908A (en) * | 2014-07-27 | 2015-01-07 | 成都国光电子仪表有限责任公司 | Natural gas flow adjusting structure |
| CN104896109A (en) * | 2015-05-29 | 2015-09-09 | 杭州华惠阀门有限公司 | Pressure reducing valve |
| CN104930197A (en) * | 2015-05-19 | 2015-09-23 | 苗蕴博 | Flow regulating valve |
| CN105422982A (en) * | 2015-12-31 | 2016-03-23 | 杭州华惠阀门有限公司 | Pressure reducing valve |
| CN105805326A (en) * | 2016-05-27 | 2016-07-27 | 艾坦姆流体控制技术（北京）有限公司 | Three-stage perforating valve element adjusting valve |
| CN110594437A (en) * | 2019-08-16 | 2019-12-20 | 国家能源集团宁夏煤业有限责任公司 | Valve seat and valve |
| CN112324980A (en) * | 2020-10-12 | 2021-02-05 | 上海自动化仪表有限公司 | Air guide sleeve for overcoming impact of two-phase flow on valve body |
| CN112855971A (en) * | 2020-12-17 | 2021-05-28 | 浙江中控技术股份有限公司 | Valve plug and governing valve |
-
2013
- 2013-09-02 CN CN201320538871.XU patent/CN203421182U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939624A (en) * | 2014-05-09 | 2014-07-23 | 杭州华惠阀门有限公司 | Reducing valve |
| CN104179988A (en) * | 2014-07-27 | 2014-12-03 | 成都国光电子仪表有限责任公司 | Multi-level flow regulating valve |
| CN104179987A (en) * | 2014-07-27 | 2014-12-03 | 成都国光电子仪表有限责任公司 | Natural gas flow regulating valve with multiple gas inlet positions |
| CN104265908A (en) * | 2014-07-27 | 2015-01-07 | 成都国光电子仪表有限责任公司 | Natural gas flow adjusting structure |
| CN104930197A (en) * | 2015-05-19 | 2015-09-23 | 苗蕴博 | Flow regulating valve |
| CN104896109A (en) * | 2015-05-29 | 2015-09-09 | 杭州华惠阀门有限公司 | Pressure reducing valve |
| CN105422982A (en) * | 2015-12-31 | 2016-03-23 | 杭州华惠阀门有限公司 | Pressure reducing valve |
| CN105805326A (en) * | 2016-05-27 | 2016-07-27 | 艾坦姆流体控制技术（北京）有限公司 | Three-stage perforating valve element adjusting valve |
| CN110594437A (en) * | 2019-08-16 | 2019-12-20 | 国家能源集团宁夏煤业有限责任公司 | Valve seat and valve |
| CN112324980A (en) * | 2020-10-12 | 2021-02-05 | 上海自动化仪表有限公司 | Air guide sleeve for overcoming impact of two-phase flow on valve body |
| CN112855971A (en) * | 2020-12-17 | 2021-05-28 | 浙江中控技术股份有限公司 | Valve plug and governing valve |
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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: 20140205 Termination date: 20160902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |