CN202203420U - Easy-to-open high pressure stop valve - Google Patents
Easy-to-open high pressure stop valve Download PDFInfo
- Publication number
- CN202203420U CN202203420U CN2011203504350U CN201120350435U CN202203420U CN 202203420 U CN202203420 U CN 202203420U CN 2011203504350 U CN2011203504350 U CN 2011203504350U CN 201120350435 U CN201120350435 U CN 201120350435U CN 202203420 U CN202203420 U CN 202203420U
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- China
- Prior art keywords
- valve
- sliding cavity
- valve rod
- flap
- stop valve
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- Expired - Fee Related
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Abstract
The utility model relates to an easy-to-open high pressure stop valve. A sliding cavity is disposed in the valve flap for opening and closing the flow channel of the stop valve; the sliding cavity is provided with a liquid feeding hole connected with a liquid inlet and a liquid discharging hole connected with a liquid outlet; the end part of the valve rod located in the hollow inner cavity of the valve body is stretched into the sliding cavity; and the end part of the valve rod located in sliding cavity can slidably match with the sliding cavity along the moving direction of the valve rod; the end part of the valve rod located in sliding cavity is matched with the sliding cavity, so that the liquid feeding hole and the liquid discharging hole in the sliding cavity can be connected or blocked; a sealing device is disposed between the rob body of the valve rod and the valve cover. When the stop valve is opened, a driving mechanism can drive the valve rod and the end part of the valve rod located in sliding cavity to move upward, so that the liquid feeding hole and the liquid discharging hole in the sliding cavity can be connected; at the moment, the medium in the sliding cavity gives an upward pressure to the valve flap, so as to decrease the moment of force needed when opening the valve flap. The stop valve has not only good sealing performance, and it also can be opened and closed easily and rapidly, so as to save energy and effort.
Description
Technical field
The utility model relates to valve field, is specifically related to a kind of high-pressure stop valve of being convenient to open.
Background technique
Stop valve is to use the most a kind of valve, and the closed principle of stop valve is to rely on valve rod pressure, and flap sealing surface and sealing surface of seat are fitted tightly to stop the medium circulation.Stop valve frictional force between flap sealing surface and the sealing surface of seat in the switching process is little, more durable, and Lift is little, and is easy to manufacture, easy to maintenance, is not only applicable to mesolow, and is applicable to high pressure.
The MEDIA FLOW of existing stop valve is to getting into valve pocket by the flap top, and at this moment under the pressure medium effect, the moment of throttle down is little, and the moment of Open valve is big; When big or working pressure was big when the bore of stop valve, energy spent during the stop valve switching manipulation was also just higher.
The model utility content
The purpose of the utility model provides a kind of stop valve of being convenient to open, and this stop valve is good airproof performance not only, and easily quick during switch, saves the energy.
For realizing above-mentioned purpose; The utility model has adopted following technological scheme: a kind of high-pressure stop valve of being convenient to open; Comprise the valve body that is provided with hollow cavity; The both sides of valve body are provided with liquid entering hole and the liquid outlet that is connected with hollow cavity through runner, and the upside of valve body is provided with valve gap, also are provided with an end on the said valve body and pass valve gap and extend into the valve rod in the valve body hollow cavity; The end that valve rod is positioned at the valve body outside is provided with the driving mechanism that actuate valve stem moves up and down; The end that valve rod is arranged in the valve body hollow cavity is provided with the flap that opens and closes runner, and described flap inside is provided with sliding cavity, and sliding cavity is provided with inlet opening that is connected with liquid entering hole and the liquid outlet opening that is connected with liquid outlet; Valve rod is arranged in the termination of valve body hollow cavity and stretches into sliding cavity, and the valve rod termination that is arranged in sliding cavity constitutes along the movement direction of valve rod and sliding cavity and is slidingly matched; Match with sliding cavity and make inlet opening and liquid outlet opening on the sliding cavity be in connected state or sealed condition in the termination that valve rod is arranged in sliding cavity; Be provided with seal arrangement between the body of rod of said valve rod and the valve gap.
The utility model can also be able to further realization through following measure simultaneously:
Described flap comprises the flap main body and the flap nut of coaxial setting, and the flap main body is the tubular that an end is provided with opening, and the shutoff of flap nut forms sliding cavity at the opening of flap main body with the inside in the flap main body.
Described sliding cavity is cylindric, and the position that is positioned on the cylinder circumferential surface and is in the circumferential surface downside of sliding cavity is provided with inlet opening, and the bottom surface of sliding cavity is provided with liquid outlet opening.
The termination that said valve rod is arranged in sliding cavity is the pressing plate that is oblate shape, and the external diameter of pressing plate and the internal diameter of sliding cavity match, and the thickness of said pressing plate is greater than the aperture of inlet opening, and the external diameter of pressing plate is greater than the aperture of liquid outlet opening.
The bottom of described flap main body is provided with the annular sealing surface that valve body matches.
Described seal arrangement comprises hold-down grid, filler gland, filler and the upper seal support of coaxial setting from top to bottom.
Preferably, described filler is an Expanded graphite.
Described upper seal support is set in the outside of valve rod and is slidingly matched with the valve rod formation, and upper seal support and valve gap formation screw-thread fit.
The beneficial effect of the utility model is:
1), valve is easy to open and close energy and labour saving
When stop valve is in closed condition; Stop valve is pressed against on the sealing surface of valve inner through the annular sealing surface that is arranged on the flap lower body part tightly; Thereby make the runner in the stop valve be in closed condition, inlet opening and the liquid outlet opening on the sliding cavity is in sealed condition at this moment; When opening stop valve; The drive mechanism valve rod moves up; The termination that valve rod is arranged in sliding cavity also moves up along the movement direction of valve rod, and makes inlet opening and liquid outlet opening on the sliding cavity be in connected state, thereby medium flows to the liquid outlet place through inlet opening, sliding cavity, liquid outlet opening successively from liquid entering hole; The medium that is arranged in sliding cavity this moment gives one of flap and upwards pressure; Thereby reduced the pressure reduction up and down of flap, just can open flap like a cork when therefore continuing poppet stem, thereby realize the purpose of energy and labour saving.
2), good seal performance
The utility model not only is provided with the annular sealing surface that valve body matches in the bottom of flap main body; And between the body of rod of valve rod and valve gap, also be provided with seal arrangement, thereby guaranteed that the utility model still can guarantee excellent sealing performance under the working condition of high pressure.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the another kind of structural representation of the utility model.
The implication of mark is following among the figure:
1-valve body 1C-runner 1A-liquid entering hole 1B-liquid outlet
2-flap main body 3-flap nut 4-valve rod 5-valve gap
7-upper seal support 11-filler 12-filler gland 13-hold-down grid
18-sealing surface 21-inlet opening 22-liquid outlet opening 41-pressing plate
Embodiment
Like Fig. 1, shown in 2; A kind of stop valve of being convenient to open; Comprise the valve body 1 that is provided with hollow cavity; The both sides of valve body 1 are provided with liquid entering hole 1A and the liquid outlet 1B that is connected with hollow cavity through runner 1C, and the upside of valve body 1 is provided with valve gap 5, also are provided with an end on the said valve body 1 and pass valve gap 5 and extend into the valve rod 4 in valve body 1 hollow cavity; The end that valve rod 4 is positioned at valve body 1 outside is provided with the driving mechanism that actuate valve stem 4 moves up and down; The end that valve rod 4 is arranged in valve body 1 hollow cavity is provided with the flap that opens and closes runner 1C, and described flap inside is provided with sliding cavity, and sliding cavity is provided with inlet opening 21 that is connected with liquid entering hole 1A and the liquid outlet opening 22 that is connected with liquid outlet 1B; Valve rod 4 is arranged in the termination of valve body 1 hollow cavity and stretches into sliding cavity, and valve rod 4 termination that is arranged in sliding cavity constitutes along the movement direction of valve rod and sliding cavity and is slidingly matched; Match with sliding cavity and make the inlet opening 21 on the sliding cavity be in connected state or sealed condition with liquid outlet opening 22 in the termination that valve rod 4 is arranged in sliding cavity; Be provided with seal arrangement between the body of rod of said valve rod 4 and the valve gap 5.
The bottom of described flap main body 2 is provided with the annular sealing surface 18 that valve body 1 matches.
Driving mechanism described in the utility model is the handwheel shown in the figure, when letting driving mechanism also can adopt the gearbox by driven by motor.
Described flap comprises the flap main body 2 and flap nut 3 of coaxial setting, and flap main body 2 is the tubular that an end is provided with opening, and 3 shutoff of flap nut form sliding cavity at the opening of flap main body 2 with the inside in flap main body 2.
Flap is made up of flap main body 2 and flap nut 3, not only is easy to manufacturing, and is convenient to assembling, also helps maintaining.
Described sliding cavity is cylindric, and the position that is positioned on the cylinder circumferential surface and is in the circumferential surface downside of sliding cavity is provided with inlet opening 21, and the bottom surface of sliding cavity is provided with liquid outlet opening 22.
Inlet opening 21 can be set to one or more, and liquid outlet opening 22 also can be set to one or more.
Preferably, the termination that said valve rod 4 is arranged in sliding cavity is the pressing plate 41 that is oblate shape, and the external diameter of pressing plate 41 and the internal diameter of sliding cavity match, and the thickness of said pressing plate 41 is greater than the aperture of inlet opening 21, and the external diameter of pressing plate 41 is greater than the aperture of liquid outlet opening 22.
Because the thickness of pressing plate 41 is greater than the aperture of inlet opening 21; And the external diameter of pressing plate 41 is greater than the aperture of liquid outlet opening 22; Therefore when pressing plate 41 is pressed against flap on the valve body and make runner 1C be in closed condition; Pressing plate 41 is in the lower end of sliding cavity, and this moment, pressing plate 41 blocked inlet opening 21 and liquid outlet opening 22 just, thereby has guaranteed the sealing of stop valve.
Seal arrangement has multiple implementation, and as the preferred version of the utility model, described seal arrangement comprises hold-down grid 13, filler gland 12, filler 11 and the upper seal support 7 of coaxial setting from top to bottom, and is as shown in Figure 1, simple in structure and good seal performance.
Described filler 11 is an Expanded graphite, and Expanded graphite has excellent sealability, also has compressibility and adds the characteristics of good springiness and oxidative stability, and have extremely strong self-enrichment and plasticity, is particularly useful under high temperature, high pressure conditions, working.
Further, as shown in Figure 1, described upper seal support 7 is set in the outside of valve rod 4 and is slidingly matched with valve rod 4 formations, and upper seal support 7 constitutes screw-thread fit with valve gap 5.This structure of upper seal support 7 can make filler 11 be difficult for revealing under the situation that guarantees sealability, thereby has prolonged the working life of valve.
Below in conjunction with Fig. 1 working procedure of the present invention is further specified:
When stop valve is in closed condition; Stop valve is pressed against on the sealing surface of valve inner through the annular sealing surface 18 that is arranged on flap main body 2 bottoms tightly; The pressing plate 41 of valve rod 4 ends is in the low side of sliding cavity at this moment, and this moment, pressing plate 41 blocked inlet opening 21 and liquid outlet opening 22, and the inlet opening 21 on the sliding cavity all is in sealed condition with liquid outlet opening 22; Runner 1C in the stop valve also is in closed condition, thereby has guaranteed the sealing of stop valve.
When opening stop valve; Operator use handwheel actuate valve stem 4 to move up, and the termination that valve rod 4 is arranged in sliding cavity drives pressing plate 41 and also moves up along the movement direction of valve rod 4, and makes pressing plate 41 be moved upward to the high-end place of sliding cavity; This moment, inlet opening 21 and liquid outlet opening 22 were in connected state through the low side cavity of sliding cavity; Thereby medium flows to liquid outlet 1B place through inlet opening 21, sliding cavity, liquid outlet opening 22 successively from liquid entering hole 1A, and the medium that is arranged in sliding cavity this moment gives one of flap and upwards pressure, thereby has reduced the pressure reduction up and down of flap; Just can promote flap like a cork when therefore continuing poppet stem 4; Thereby opened valve apace, conducting runner 1C, realized the purpose of energy and labour saving.
In sum, this stop valve not only is easy to open and close, and good seal performance.
Claims (8)
1. high-pressure stop valve of being convenient to open; Comprise the valve body (1) that is provided with hollow cavity; The both sides of valve body (1) are provided with liquid entering hole (1A) and the liquid outlet (1B) that is connected with hollow cavity through runner (1C); The upside of valve body (1) is provided with valve gap (5); Also be provided with an end on the said valve body (1) and pass valve gap (5) and extend into the valve rod (4) in valve body (1) hollow cavity, the end that valve rod (4) is positioned at valve body (1) outside is provided with the driving mechanism that actuate valve stem (4) moves up and down, and the end that valve rod (4) is arranged in valve body (1) hollow cavity is provided with the flap that opens and closes runner (1C); It is characterized in that: described flap inside is provided with sliding cavity; Sliding cavity is provided with inlet opening (21) that is connected with liquid entering hole (1A) and the liquid outlet opening (22) that is connected with liquid outlet (1B), and valve rod (4) is arranged in the termination of valve body (1) hollow cavity and stretches into sliding cavity, and valve rod (4) termination that is arranged in sliding cavity constitutes along the movement direction of valve rod and sliding cavity and is slidingly matched; Match with sliding cavity and make inlet opening (21) and liquid outlet opening (22) on the sliding cavity be in connected state or sealed condition in the termination that valve rod (4) is arranged in sliding cavity; Be provided with seal arrangement between the body of rod of said valve rod (4) and the valve gap (5).
2. the high-pressure stop valve of being convenient to open according to claim 1; It is characterized in that: described flap comprises the flap main body (2) and the flap nut (3) of coaxial setting; Flap main body (2) is the tubular that an end is provided with opening, and flap nut (3) shutoff forms sliding cavity at the opening of flap main body (2) with the inside in flap main body (2).
3. the high-pressure stop valve of being convenient to open according to claim 1 is characterized in that: described seal arrangement comprises hold-down grid (13), filler gland (12), filler (11) and the upper seal support (7) of coaxial setting from top to bottom.
4. the high-pressure stop valve of being convenient to open according to claim 2; It is characterized in that: described sliding cavity is cylindric; The position that is positioned on the cylinder circumferential surface and is in the circumferential surface downside of sliding cavity is provided with inlet opening (21), and the bottom surface of sliding cavity is provided with liquid outlet opening (22).
5. the high-pressure stop valve of being convenient to open according to claim 3 is characterized in that: described filler (11) is an Expanded graphite.
6. the high-pressure stop valve of being convenient to open according to claim 3 is characterized in that: described upper seal support (7) is set in the outside of valve rod (4) and is slidingly matched with valve rod (4) formation, and upper seal support (7) constitutes screw-thread fit with valve gap (5).
7. the high-pressure stop valve of being convenient to open according to claim 4; It is characterized in that: the termination that said valve rod (4) is arranged in sliding cavity is the pressing plate (41) that is oblate shape; The external diameter of pressing plate (41) and the internal diameter of sliding cavity match; The thickness of said pressing plate (41) is greater than the aperture of inlet opening (21), and the external diameter of pressing plate (41) is greater than the aperture of liquid outlet opening (22).
8. the high-pressure stop valve of being convenient to open according to claim 7 is characterized in that: the bottom of described flap main body (2) is provided with the annular sealing surface (18) that valve body (1) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203504350U CN202203420U (en) | 2011-08-13 | 2011-08-13 | Easy-to-open high pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203504350U CN202203420U (en) | 2011-08-13 | 2011-08-13 | Easy-to-open high pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202203420U true CN202203420U (en) | 2012-04-25 |
Family
ID=45967541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203504350U Expired - Fee Related CN202203420U (en) | 2011-08-13 | 2011-08-13 | Easy-to-open high pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202203420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994262A (en) * | 2014-05-28 | 2014-08-20 | 西安交通大学 | Alternating-current permanent magnet servo linear motor direct-driving-type hot oil valve |
-
2011
- 2011-08-13 CN CN2011203504350U patent/CN202203420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994262A (en) * | 2014-05-28 | 2014-08-20 | 西安交通大学 | Alternating-current permanent magnet servo linear motor direct-driving-type hot oil valve |
| CN103994262B (en) * | 2014-05-28 | 2016-04-13 | 西安交通大学 | A kind of AC permanent magnetic servo linear motor directly driving type deep fat 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: 20120425 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |