CN2265460Y - Piston valve - Google Patents
Piston valve Download PDFInfo
- Publication number
- CN2265460Y CN2265460Y CN 96233030 CN96233030U CN2265460Y CN 2265460 Y CN2265460 Y CN 2265460Y CN 96233030 CN96233030 CN 96233030 CN 96233030 U CN96233030 U CN 96233030U CN 2265460 Y CN2265460 Y CN 2265460Y
- Authority
- CN
- China
- Prior art keywords
- piston
- valve
- sealing ring
- utility
- seal ring
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a piston valve, which comprises a valve body, a valve cover, a sealing ring, a sealing ring gland, an adjusting rod, and a hand wheel. The utility model also comprises a piston, a flow path, a piston rod, a spacing clip, an upper sealing ring, an upper sealing ring gland, a lower sealing ring, a lower sealing ring seat, and an adjusting plate. The utility model has the advantages that the utility model has reliable sealing performance; the utility model has the 'dual-regulation ' function; the service life of the piston valve can be effectively improved; the utility model is not only suitable for general medium environment, but also is suitable for the medium environment of high temperature, high pressure, and strong corrosion and with particle impurity.
Description
The utility model belongs to the poppet valve technical field, particularly a kind of piston valve.
In the prior art, gate valve is to utilize very high surface accuracy of wedge-type flashboard and valve seat and position degree to realize its function between the two.When valve closing, produce very big clamping force between valve seat and flashboard and realize sealing, cut off medium.Yet, when clamping force produces, to produce very big fretting wear between valve seat and flashboard on the one hand, shortened its working life; On the other hand, in use, the part material is adsorbed on the sealing surface of valve because medium itself is unclean; When operation, then will scratch the surface of sealing part, have influence on the using effect and the life-span of valve.In addition, also there are many shortcomings such as big, the heavy and processing maintenance difficulty of volume in gate valve.Stop valve and for example, mainly be that impacting force by valve stamen and valve seat realizes sealing, because the restriction of its structural type, feasible medium by valve causes the abrasion of washing away to valve seat on the one hand, also be deposited on sealing surface on the other hand because of the adsorbate of unclean medium, and in operating process, scratch the surface of sealing part, produce the working life of leaking and shortening valve.
The utility model its objective is, at the defective of above-mentioned valve, proposes a kind of piston valve.This valve not only has reliable sealing performance, and can also improve effectively its working life, and can directly adjust, and can finely tune rate-of flow indirectly again; Be very suitable under the special media environment of high temperature, high pressure, deep-etching and band impurity, using.
The purpose of this utility model realizes by following technical proposals:
Piston valve comprises valve body, valve gap, seal ring, seal ring gland, adjustable lever, handwheel.Valve body connects with valve gap, and seal ring is fixed on the valve gap by the seal ring gland.Also comprise piston, runner, piston rod, spacing card, upper sealing ring, upper sealing ring gland, lower sealing ring, lower seal ring seat, regulator plate.Piston rod is a hollow tube, and its lower end connects with piston, and its top is screw rod.Be fixed on the valve gap and and connect with handwheel.Runner is in the piston bottom.Lower sealing ring is installed in the lower seal ring seat of valve body and with piston and contacts.Adjustable lever is inserted in the piston rod, and its lower end connects with regulator plate.Its upper end connects with small handwheel.Upper sealing ring is fixed on the piston rod upper end by the upper sealing ring gland.The outside, piston upper edge is equipped with spacing card.
Further be that the runner quantity in the above-mentioned piston valve is 2-50.
Further be that the flow channel shape in the above-mentioned piston valve is quadrilateral or ellipse, preferably rectangle.
Compared with the prior art, the utlity model has following obvious advantage:
1, have " two accent " function, that is: not only can be by adjusting opening and close and the adjustment of rate-of flow of piston control valve, but also can be in piston the runner opening state, adjust the flow of control media by regulator plate.
2, have reliable sealing performance, be that each sealing is not the autonomous system that directly contacts with medium.
3, improved working life effectively, be that lower sealing ring only contacts with outer surface of piston, directly be not subjected to washing away of medium, effectively prevented absorption and the deposition of impurity on lower sealing ring in the medium.In addition, after piston is opened, mainly be by regulator plate being operated the flow of adjusting control media, significantly reduced piston times of exercise and with the friction and wear of lower sealing ring.
4, compare with similar same specification product, its switch moment is little, its weight saving, and be easy to safeguard.
5, be not only applicable to general media environment, but also be applicable to the media environment of high temperature, high pressure, severe corrosive and band granule foreign.
Description of drawings:
Fig. 1 is the utility model embodiment plan view;
Fig. 2 (a) is a valve body sectional side view among the utility model embodiment;
Fig. 2 (b) is the A-A sectional view of Fig. 2 (a);
Fig. 2 (c) is the plan view of Fig. 2 (a).
Below, the utility model is described in further detail in conjunction with the accompanying drawings.
Embodiment 1
Piston valve comprises valve body 1, valve gap 2, seal ring 3, seal ring gland 4, adjustable lever 5, handwheel 6.Valve body 1 connects with valve gap 2, and seal ring 3 is fixed on the valve gap 2 by the seal ring gland.Also comprise piston 7, runner 8, piston rod 9, spacing card 10, upper sealing ring 11, upper sealing ring gland 12, lower sealing ring 13, lower seal ring seat 14, regulator plate 15.Piston rod 9 is a hollow tube, and its lower end connects with piston 7, and its top is screw rod, is fixed on the valve gap 2 and with handwheel 6 to connect.Runner 8 is positioned at the bottom of piston 7, is rectangular opening, totally 10.Lower sealing ring 13 is installed in the lower seal ring seat 14 of valve body 1 and with the outer surface of piston 7 and contacts.Adjustable lever 5 is inserted in the piston rod 9, and its lower end connects with regulator plate 15, and its upper end connects with small handwheel 16.Upper sealing ring 11 is fixed on the upper end of piston rod 9 by upper sealing ring gland 12.The outside, piston 7 upper edges is equipped with spacing card 10.
Embodiment 2
Piston valve comprises valve body 1, valve gap 2, seal ring 3, seal ring gland 4, adjustable lever 5, handwheel 6.Valve body 1 connects with valve gap 2, and seal ring 3 is fixed on the valve gap 2 by seal ring gland 4.Also comprise piston 7, runner 8, piston rod 9, spacing card 10, upper sealing ring 11, upper sealing ring gland 12, lower sealing ring 13, lower seal ring seat 14, regulator plate 15.Piston 9 is a hollow tube, and its lower end connects with piston 7, and its top is screw rod, is fixed on the valve gap 2 and with handwheel 6 to connect.Runner 8 is positioned at the bottom of piston 7, is shape hole, ellipse garden, totally 3.Lower sealing ring 13 is installed in the lower seal ring seat 14 of valve body 1 and with the outer surface of piston 7 and contacts.Adjustable lever 5 is inserted in the piston rod 9, and its lower end connects with regulator plate 15, and its upper end connects with small handwheel 16.Upper sealing ring 11 is fixed on the upper end of piston rod 9 by upper sealing ring gland 12.The outside, piston 7 upper edges is equipped with spacing card 10.
Piston cut-in operation pipeline is in running order.At first rotation hand wheel 6, make piston rod 9 drive piston 7 and move up.After runner 8 upper edges and the conducting of water inlet lower edge, medium begins to flow.When piston 7 tops touch valve gap 2, runner 8 complete conductings this moment, its cross-section area maximum reaches S
N=S
Go intoWherein N is the runner number, and its value is N=2,3,4 ... 50, when counterrotating handwheel 6, piston 7 moves down, and rate-of flow reduces gradually in the valve.When spacing card 10 tangles valve body 1 inlet lower edge, runner 8 not conductings, medium stops to flow.
When piston 7 moves to peak, during the complete conducting of runner 8, the control of rate-of flow and adjust and also can realize by regulator plate 15.Adjust small handwheel 16, the adjustable lever 5 in the piston rod 9 is moved down by the peak in the piston 7.When regulator plate 15 moved to the inlet upper edge, the medium of regulator plate 15 beginning shutoff runners 8 flowed into sectional area, reduces the amount of flow of medium in valve.Adjust small handwheel 16, make regulator plate 15 continue to move down, the net sectional area of runner 8 further reduces.When regulator plate 15 moved to the lower edge of runner 8, the net sectional area of runner 8 was zero, no longer conducting in the valve, and medium stops to flow.Adjust in the regulator plate 15 rise processes, medium begins to flow by not flowing to, and flow progressively increases to maximum.
Claims (3)
1, piston valve comprises valve body, valve gap, seal ring, seal ring gland, adjustable lever, handwheel; Valve body connects with valve gap, and seal ring is fixed on the valve gap by the seal ring gland; The utility model is characterized in that, also comprises piston, runner, piston rod, spacing card, upper sealing ring, upper sealing ring gland, lower sealing ring, lower seal ring seat, regulator plate; Piston rod is a hollow tube, and its lower end connects with piston, and its top is screw rod, is fixed on the valve gap and with handwheel to connect; Runner is in the piston bottom; Lower sealing ring is installed in the lower seal ring seat of valve body and with piston and contacts.Adjustable lever is inserted in the piston rod, and its lower end connects with regulator plate, and its upper end connects with small handwheel.Upper sealing ring is fixed on the piston rod upper end by the upper sealing ring gland.The outside, piston upper edge is equipped with spacing card.
As the said piston valve of claim 1, it is characterized in that 2, wherein the quantity of runner is 2-50.
As the said piston valve of claim 2, it is characterized in that 3, wherein runner is quadrilateral or ellipse garden shape, preferably rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233030 CN2265460Y (en) | 1996-04-23 | 1996-04-23 | Piston valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233030 CN2265460Y (en) | 1996-04-23 | 1996-04-23 | Piston valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2265460Y true CN2265460Y (en) | 1997-10-22 |
Family
ID=33909815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96233030 Expired - Fee Related CN2265460Y (en) | 1996-04-23 | 1996-04-23 | Piston valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2265460Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999036723A1 (en) * | 1998-01-16 | 1999-07-22 | Jiesheng Jin | A contractible joint device for metal conduit |
| CN105904938A (en) * | 2015-02-19 | 2016-08-31 | 福特全球技术公司 | Vehicle ventilation system incorporating an inlet duct including a poppet valve |
| CN106812964A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve assembly method |
-
1996
- 1996-04-23 CN CN 96233030 patent/CN2265460Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999036723A1 (en) * | 1998-01-16 | 1999-07-22 | Jiesheng Jin | A contractible joint device for metal conduit |
| CN105904938A (en) * | 2015-02-19 | 2016-08-31 | 福特全球技术公司 | Vehicle ventilation system incorporating an inlet duct including a poppet valve |
| CN105904938B (en) * | 2015-02-19 | 2021-03-02 | 福特全球技术公司 | Vehicle ventilation system including air intake duct having poppet valve |
| CN106812964A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |