CN2898473Y - Non-leakage intelligent cutoff valve - Google Patents
Non-leakage intelligent cutoff valve Download PDFInfo
- Publication number
- CN2898473Y CN2898473Y CN 200620040568 CN200620040568U CN2898473Y CN 2898473 Y CN2898473 Y CN 2898473Y CN 200620040568 CN200620040568 CN 200620040568 CN 200620040568 U CN200620040568 U CN 200620040568U CN 2898473 Y CN2898473 Y CN 2898473Y
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- valve
- disc
- big piston
- cut
- valve disc
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Abstract
A non-leakage intelligent cutoff valve comprises a valve casing, a valve base, a valve cover and a valve core equipped between the valve base and the valve cover, and a controller; the utility model is characterized in that the valve core comprises a big piston valve disc, a small piston valve disc, a big spring and a small spring, wherein, the big piston valve disc is mated with the contact of the valve; the top of the big piston valve disc forms a close cavity(d) with the valve cover; the big piston valve disc forms a cavity(b)with the valve base; the first hole(a) and the second hole(c) are opened on the big piston valve disc; the small piston valve disc is mated with the big piston valve disc and forms a close cavity(e); a metering pin valve is equipped on the valve cover. The utility model starting by the pressure from the medium, not only has the advantage of reliable operating, but also, has the advantages of saving energy and reducing cost by saving the drive device. Moreover, the utility model can seal under the start status, so it has the advantage of quick start and close. Thereby, the utility model is,in particular,applied to the mechanical equipment and process of remote controlling or automatic controlling.
Description
Technical field
The utility model relates to a kind of valve, especially refers to medium activated as valves such as stop valve, check valves.
Background technique
At present, traditional stop valve generally has following characteristics:
1) traditional stop valve generally all drives valve disc by the stem structure form and opens door, for anti-leak-stopping vapour/leakage of oil just needs reliable sealing;
2) traditional stop valve is if not manual words, must adopt machinery, hydropneumatic or electronic mode to start so, so just must control by a drive unit that is sleeved on the outside, transmit unlatching moment for Open valve just needs a driving mechanism, just need the external world that the energy is provided for this reason;
3) even traditional stop valve is not manual, the time of their opening and closing is all long;
4) traditional stop valve is the difficult selfsealings of accomplishing under opening state;
Therefore, general in the pipeline of steam or other medium, particularly under high pressure and/or the high-temperature condition, above-mentioned traditional stop valve is difficult to fine being suitable for, because it does not have airtight structure fully.
The model utility content
The utility model has aimed to provide the intelligent nothing leakage cut-off valve of a kind of good seal performance, reliable, quick opening and closing, energy saving and reduction manufacture cost.
A kind of intelligent nothing provided by the utility model is leaked cut-off valve, comprise valve casing, valve seat, valve gap and the spool that between valve seat and valve gap, is provided with, and controller, it is characterized in that: described spool comprises big piston valve disc, the small piston valve disc in the big piston valve disc, be connected the big spring between described big piston valve disc and the valve gap and place little spring in the spring seat that the bar portion termination of described small piston valve disc forms, wherein: described big piston valve disc and valve gap surface of contact closely cooperate, and its top and valve gap form airtight chamber d; Its underpart and valve seat form chamber b; Have the first aperture a and the second aperture c on the described big piston valve disc,, make aperture the 2nd c be incorporated into chamber d to inlet pressure Pc fast, and realization big piston valve disc is closed by the first aperture a; Described small piston valve disc closely is pressed against on the valve seat port when closing; Its top and big piston valve disc closely cooperate and form the e of airtight chamber; Described metering pin valve is installed on the valve gap; Described controller is installed on the pipeline of pilot pressure Pc.
Leak in the cut-off valve in above-mentioned intelligent nothing, valve gap is provided with metering pin valve.
Leak in the cut-off valve in above-mentioned intelligent nothing, controller both can adopt solenoid valve, also can adopt manually operated valve.
Leak in the cut-off valve in above-mentioned intelligent nothing, described solenoid valve both can be the high temperature resistant solenoid valve that has radiating fin, also can be general conventional solenoid valve.
Leak in the cut-off valve in above-mentioned intelligent nothing, solenoid valve both can be the switching mode selector valve, also can be the proportional-type control valve.
Owing to adopted above-mentioned technical solution, it is that pressure by medium itself starts that the intelligent nothing of the utility model is leaked cut-off valve, not only have reliable advantage, and can omit drive unit, have the advantage of energy saving and minimizing cost.In addition, energy selfsealings under the utility model opening state, and have the advantage of quick opening and closing.Therefore, the utility model is specially adapted in the machinery and technological process of remote control or control automatically.
Description of drawings
Fig. 1 is the sectional view of the utility model structure.
Embodiment
The structure of the utility model cut-off valve, as shown in Figure 1, comprise valve casing 1, valve seat 8, valve gap 4 and the spool that between valve seat 8 and valve gap 4, is provided with, and controller 9, it is characterized in that: described spool comprises big piston valve disc 2, the small piston valve disc 7 in big piston valve disc 2, be connected the big spring 3 between described big piston valve disc 2 and the valve gap 4 and place little spring 6 in the spring seat that the bar portion termination of described small piston valve disc forms, wherein:
Big piston valve disc 2 and valve gap 4 surface of contact closely cooperate, and its top and valve gap 4 form airtight chamber d; Its underpart and valve seat 8 form chamber b.
Have the first aperture a and the second aperture c on the big piston valve disc 2.By the first aperture a, make the second aperture c be incorporated into chamber d to inlet pressure Pc fast, and realize 2 quick closedowns of big piston valve disc.Big piston valve disc 2 and valve casing 1 are provided with the special alloy material when closing, to reach the effect of reliable sealing.
When closing, small piston valve disc 7 closely is pressed against on valve seat 8 ports.Its top and big piston valve disc 2 closely cooperate and form the e of airtight chamber.
Controller 9 is installed on the pipeline of pilot pressure Pc.This is typical two cross valves.
When controller 9 is opened, be full of pressure P c in the e of airtight chamber, small piston dish valve 7 overcomes spring force and valve head lifting force and cuts out.Pressure P c enters the d of airtight chamber through aperture the 2nd c again through the first aperture a, and Pc acts on and makes valve closing on the big piston valve disc 2.
When controller 9 is closed, the straight-through rapidly oil back chamber of the pressure P c in the e of airtight chamber.Small piston valve disc 7 overcomes spring force and moves L2 stroke rear enclosed aperture c under the effect of Pc pressure.Pressure P c in the d of airtight chamber is through metering pin valve 5 oil returns.
The d cavity pressure disappears, and big piston valve disc 2 is opened in the effect of Pc pressure.
Metering pin valve regulating valve unlatching at random or the speed of closing.
This metering pin valve generally is the movement speed that can adjust the open and close of big piston valve disc 7 according to user's specific requirement, breaks the valve molded lines in case speed is too fast and causes leakage vapour.
And the plug screw of other two plug screws on the valve gap and valve casing bottom is it to be removed dress pressure gauge usefulness when valves test, and should remove pressure gauge and smother with plug screw when normal operation.
Controller 9 is generally all selected solenoid valve for use, can carry out remote control like this, certainly manual three-way valve also can, this can be configured according to customer requirements.
As select two of one of the then configurable two-position three way magnetic valve of solenoid valve or two-position two-way solenoid valves for use, if using, valve when the medium of normal temperature, can select general solenoid valve for use.Use as valve and then need select the high temperature resistant solenoid valve that has radiating fin for use when the high temperature media, to guarantee the solenoid valve proper functioning.
Solenoid valve preferably is installed in nearly valve place, and valve can move rapidly like this.
Two, the working principle of the utility model valve
1) to open during in closed position when valve
Behind 90 ° of the dextrorotation transcoder controllers (also available two-position three way magnetic valve or two two-position two-way solenoid valves replace), the pressure of small piston valve disc 7 upper chamber b reduces because of communicating with exhaust duct Po, and initial steam pressure Pc enters chamber b through aperture a around the big piston valve disc 2, then initial steam pressure Pc acts on the close power of the power of small piston valve disc 7 ring surfaces greater than little spring 6, small piston valve disc 7 is opened, and on divide a word with a hyphen at the end of a line journey L2 and 2 driving fits of big piston valve disc, cut off the path of aperture c and initial steam pressure Pc, big piston valve disc 2 upper chamber d communicate with blow-off line with the gap of 4 of valve gaps through the throttle orifice and the big piston valve disc 2 of metering pin valve like this.Pressure among the chamber d reduces (speed that reduces is decided on the throttling size of metering pin valve), and sets up a pressure through the valve seat orifice of the small piston valve disc 7 of aperture a and unlatching on the big piston valve disc 2 in the valve export side.When the pressure that acts on small piston valve disc 7 with act on active force sum on big piston valve disc 2 ring surfaces close greater than big spring 3 in power and the chamber d pressure produced when closing power, the journey of dividing a word with a hyphen at the end of a line on big piston valve disc 2 is opened L1, in opening state valve disc 2 with above valve gap 4 surface of contact driving fits, valve is not leaked, when having realized opening from close property and do not have leakage losses.
2) to close during in the enable possition when valve
After being rotated counterclockwise 90 ° of controllers, small piston valve disc 7 upper chamber b communicate with initial steam pressure Pc, make chamber e internal pressure reach the Pc value.Then under initial steam pressure Pc and little spring 6 power effects, small piston valve disc 7 moves down, little valve cuts out, initial steam pressure is by aperture a, gap between chamber b and aperture c and small piston valve disc bar and the submissile spring abutment, enter big piston valve disc 2 upper chamber d, the initial steam pressure Pc of valve enters big or small piston valve disc 7 tops by metering pin valve 5 and center-aisle again simultaneously, make whole big piston valve disc 2 upper pressure reach the Pc value, then the power of the closing sum of the downward force that produced of big piston valve disc 2 and big spring 3 greater than valve after vapor pressure P act on upward force on the big piston valve disc 2, big piston valve disc 2 is moved down and with valve closing.
During the valve closing state, valve closes 3 at upstream pressure Pc big spring and closes under the power effect and airtight.
Three, the utility model valve and traditional stop valve is different
Intelligent nothing is leaked the contrast of cut-off valve and traditional stop valve:
1) traditional stop valve is generally all opened door by stem structure form drive valve disc, for anti-leak-stopping vapour just needs reliable sealing.And intelligent nothing is leaked cut-off valve and is not just needed stem structure to start valve, and it is that pressure by medium itself starts, and operation just seems reliably like this, has reliable advantage.
2) traditional stop valve is if not manual words, must adopt machinery, hydropneumatic or electronic mode to start so, so just must control by a drive unit that is sleeved on the outside, transmit unlatching moment for Open valve just needs a driving mechanism, just need the external world that the energy is provided for this reason.It then is that pressure by medium itself starts valve that intelligent nothing is leaked cut-off valve, does not just need the drive unit of a consumes energy, has energy saving and reduces the cost advantage of (lacking a drive unit).
3) even traditional stop valve is not manual, the time of their opening and closing is all long.And intelligent nothing leakage its opening and closing time of cut-off valve can accomplish between 1～10 second, even can be less than 1 second.So have the advantage of quick opening and closing.
4) intelligent nothing leakage cut-off valve needn't be adorned drive unit in addition, only needs by a controller, and only the control energy with a little just can utilize the pressure of medium itself to come the opening and closing valve.And controller can be selected manually, surges, pneumatic or electric operating.And the most frequently used be solenoid valve, so have the advantage of saving manufacturing expense.
5) traditional stop valve is the difficult selfsealings of accomplishing under opening state, and intelligent nothing is leaked cut-off valve then also can accomplish selfsealings under opening state, demonstrates its reliability so can be used in the pipeline of toxic gas.So leaking cut-off valve, intelligent nothing has the advantage that seals fully under the opening state.
6) to leak cut-off valve be multi-functional valve for intelligent nothing, not only can make stop valve but also can be used as check valve.
7) intelligent nothing leakage cut-off valve is specially adapted in the machinery and technological process of remote control or control automatically.
Because above-mentioned advantage, the intelligent nothing of the utility model is leaked cut-off valve, not only is used for the general steam or the pipeline of other media, and it particularly is applicable under high pressure and/or the high-temperature condition.Because it has airtight structure fully.So in poisonous and radioactive air or steam line, also show its reliability.So be very suitable in power station petrochemical industry and the radioactive gas pipeline.
In addition, valve aperture can design in 80 to 500 millimeters scopes, and nominal pressure can be up to 150kg/cm
2(15MPa).Because it is multi-functional that intelligent nothing is leaked cut-off valve, not only can be used as stop valve and also can be used as check valve, its application area very extensively is the valve that has very much development prospect.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technological schemes that are equal to also should belong within the category of the present utility model, should be limited by each claim.And include within the scope of claim.
Claims (8)
1, a kind of intelligent nothing is leaked cut-off valve, comprise valve casing (1), valve seat (8), valve gap (4) and be positioned at valve seat (8) and valve gap (4) between the spool that is provided with, and controller (9), it is characterized in that: the little spring (6) that described spool comprises big piston valve disc (2), be arranged in the small piston valve disc (7) of big piston valve disc (2), be connected the big spring (3) between described big piston valve disc (2) and the valve gap (4) and place the spring seat that the bar portion termination of described small piston valve disc (7) forms, wherein:
Described big piston valve disc (2) and valve gap (4) surface of contact closely cooperate, and its top and valve gap (4) form airtight chamber (d); Its underpart and valve seat (8) form chamber (b);
Have first aperture (a) and second aperture (c) on the described big piston valve disc (2),, make second aperture (c) be incorporated into chamber (d) to inlet pressure (Pc) fast, and realization big piston valve disc (2) is closed by first aperture (a);
Described small piston valve disc (7) closely is pressed against when closing on valve seat (8) port; Its top and big piston valve disc (2) closely cooperate and form airtight chamber (e);
Described metering pin valve (5) is installed on the valve gap (4);
Described controller (9) is installed on the pipeline of pilot pressure (Pc).
2, intelligent nothing according to claim 1 is leaked cut-off valve, and it is characterized in that: described valve gap (4) is provided with metering pin valve (5).
3, intelligent nothing according to claim 1 and 2 is leaked cut-off valve, it is characterized in that: described controller adopts solenoid valve.
4, intelligent nothing according to claim 1 and 2 is leaked cut-off valve, it is characterized in that: described controller adopts manually operated valve.
5, intelligent nothing according to claim 3 is leaked cut-off valve, and it is characterized in that: described solenoid valve is the high temperature resistant solenoid valve that has radiating fin.
6, intelligent nothing according to claim 3 is leaked cut-off valve, and it is characterized in that: described solenoid valve is general conventional solenoid valve.
7, intelligent nothing according to claim 3 is leaked cut-off valve, and it is characterized in that: described solenoid valve is the switching mode selector valve.
8. intelligent nothing according to claim 3 is leaked cut-off valve, and it is characterized in that: described solenoid valve is the proportional-type control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040568 CN2898473Y (en) | 2006-03-28 | 2006-03-28 | Non-leakage intelligent cutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040568 CN2898473Y (en) | 2006-03-28 | 2006-03-28 | Non-leakage intelligent cutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898473Y true CN2898473Y (en) | 2007-05-09 |
Family
ID=38073806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040568 Expired - Lifetime CN2898473Y (en) | 2006-03-28 | 2006-03-28 | Non-leakage intelligent cutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898473Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728137A (en) * | 2021-03-30 | 2021-04-30 | 北京星际荣耀空间科技股份有限公司 | Stop valve, engine and rocket aircraft |
-
2006
- 2006-03-28 CN CN 200620040568 patent/CN2898473Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728137A (en) * | 2021-03-30 | 2021-04-30 | 北京星际荣耀空间科技股份有限公司 | Stop valve, engine and rocket aircraft |
| CN112728137B (en) * | 2021-03-30 | 2021-07-09 | 北京星际荣耀空间科技股份有限公司 | Stop valve, engine and rocket aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XINHUAWEIER HYDRAULIC SYSTEM ( SHANGHAI ) CO., LTD Free format text: FORMER NAME OR ADDRESS: SHANGHAI XINHUA HYDRAULIC POWER SYSTEM CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: B, building 1835, Shanghai Road, Minhang District, 201109 Patentee after: Xinhua Well Hydraulic System (Shanghai) Co., Ltd. Address before: No. 351, Cheng Jian Road, Shanghai, Minhang District, China: 201108 Patentee before: Shanghai Xinhua Power Station Hydraulic System Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070509 |
|
| EXPY | Termination of patent right or utility model |