CN201547249U - High-pressure pneumatic stop valve - Google Patents
High-pressure pneumatic stop valve Download PDFInfo
- Publication number
- CN201547249U CN201547249U CN2009202009927U CN200920200992U CN201547249U CN 201547249 U CN201547249 U CN 201547249U CN 2009202009927 U CN2009202009927 U CN 2009202009927U CN 200920200992 U CN200920200992 U CN 200920200992U CN 201547249 U CN201547249 U CN 201547249U
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- Prior art keywords
- spool
- hole
- gland
- valve
- valve seat
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Abstract
A high-pressure pneumatic stop valve comprises a valve body component (1) and a valve core control device (3) connected therewith. The valve body component (1) comprises a valve seat (1.1), a valve core component (2) matched in the valve seat (1.1), and an inlet flange (1.2), an outlet flange (1.3) and an end cover (1.4) connected to the valve seat (1.1), wherein the valve core component (2) comprises a valve core (2.1), and a pressing sleeve (2.4) and a pressing sleeve gasket (2.2) in slide fit with the valve core (2.1), one end of the valve core (2.1) extends out of the end cover (1.4), and the end cover (1.4) further comprises a balancing device. Compared with the prior art, the valve has the characteristics that the stop valve can be operated under the environment with 45 Mpa working pressure due to the adoption of the balancing device.
Description
Technical field:
The utility model relates to a kind of pneumatic stopping valve, particularly relates to a kind of high-pressure pneumatic stop valve.
Background technique:
Development and extensive use along with China's compressed air technique, driven the demand that pipeline is carried control actuating component-high-pressure pneumatic stop valve, but high-pressure pneumatic stop valve in the market, the pressure that uses is all below 35MPa, development along with the pressurized air application technology, the working pressure that pressurized air uses requires to have brought up to about 45Mpa, and the use working pressure of the high-pressure pneumatic stop valve of prior art can't satisfy the requirement of 45Mpa working pressure.
The model utility content:
The utility model provides a kind of high-pressure pneumatic stop valve that can work at above problem under 45Mpa working pressure environment.
The utility model overcomes the above problems used technological scheme: a kind of high-pressure pneumatic stop valve with following structure is provided, the spool control gear that it comprises valve component, is connected with valve component, described valve component comprises valve body, be engaged in the mangetic core assembly in the valve body and be connected suction flange, outlet(discharge) flange and end cap on the valve body, described mangetic core assembly comprises spool and the gland and the gland pad that are slidingly matched with spool, one end of described spool stretches out outside the end cap, and described mangetic core assembly also comprises Equilibrator.
Described gland is provided with the center step hole, the diameter of the nearly valve body stomidium of described center step hole is greater than the diameter of the nearly spool control gear of center step hole stomidium, described Equilibrator comprises counter balance pocket, be enclosed within movable sheath and the air vent that is located on the spool on the spool, the macropore sliding fit of the center step hole of the outer peripheral surface of described movable sheath and gland, described counter balance pocket is meant the cavity that forms by between the macropore of gland center step hole and the movable sheath, described air vent one end opening is communicated with in the spool lower end surface and with suction port, air vent the other end opening is communicated with on the top of spool and with counter balance pocket, and the sectional area of described movable sheath is not less than the area of spool lower end surface end face cylindrical.
Described control gear comprises the cylinder that is connected with end cap, is slidingly fitted in the piston in the cylinder, and an end of the spool that the piston rod of described piston is outer with stretching out end cap is connected, and described cylinder two ends are respectively equipped with air inlet/outlet A and air inlet/outlet B.
After adopting above structure, the utility model compared with prior art, because mangetic core assembly also comprises Equilibrator, the then setting of counter balance pocket in the Equilibrator, make the gas in the suction port enter into counter balance pocket by the air vent on the spool, and to the certain pressure effect of movable sheath generation, moreover the sectional area of movable sheath is not less than the area of spool lower end surface end face cylindrical, this just makes suction port gas offset the active force that suction port place gas makes progress to spool to the downward active force of movable sheath in counter balance pocket, so only need satisfy the sealing of spool and valve body to the active force of spool in the control gear, can realize high pressure sealing.Therefore the utlity model has the characteristics that under 45Mpa working pressure environment, to work.
As improvement, described air vent comprises the axial blind hole that is located at seal spool end end face and is located at the radial direction through hole that the two ends on the spool are communicated with counter balance pocket, one end of described blind hole is communicated with suction port, the other end of blind hole is communicated with radial direction through hole, then because the part of intake duct is a radial direction through hole, then the active force up and down that produces in radial direction through hole of suction port gas is a balance, so that movable sheath just can be done is littler, so that volume of the present utility model reduces, increase and application area.
As further improvement, described valve seat is provided with at least one through hole I radially, and the position of through hole I is corresponding to the outer peripheral surface of gland, the position of nearly gland pad is provided with at least one through hole II radially on the described gland, and through hole I communicates with through hole II, then the combination of through hole II and through hole I can be discharged to the air between movable sheath and the gland pad outside the valve body, thereby guarantees the stability of spool work, improves the reliability that seals between spool and the valve body.
As further improving, described spool control gear comprises the cylinder that is connected with end cap, be slidingly fitted in the piston in the cylinder, one end of the spool that the piston rod of described piston is outer with stretching out end cap is connected, described cylinder two ends are respectively equipped with air inlet/outlet A and air inlet/outlet B, the gas flow that then only needs control cylinder is that the constant speed of controllable valve core is closed, can realize the quick-make of spool, and the problem that void is closed can not appear, air pressure in the control cylinder can make to have reliable and stable pressure force between spool and the valve seat simultaneously, thereby has guaranteed sealability of the present utility model.
Description of drawings:
Fig. 1 is the structural representation of the utility model high-pressure pneumatic stop valve.
Fig. 2 is the structure for amplifying schematic representation of C part among Fig. 1.
As shown in the figure: 1, valve component, 1.1, valve seat, 1.2, suction flange, 1.3, outlet(discharge) flange, 1.4, end cap, 2, mangetic core assembly, 2.1, spool, 2.2, the gland pad, 2.3, movable sheath, 2.4, gland, 3, the spool control gear, 3.1, cylinder, 3.2, piston, 3.3, air inlet/outlet A, 3.4, air inlet/outlet B, 4, counter balance pocket, 5, radial direction through hole, 6, blind hole, 7, through hole I, 8, through hole II.
Embodiment:
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described further, but the utility model is not limited to following concrete embodiment:
A kind of high-pressure pneumatic stop valve as depicted in figs. 1 and 2, it comprises valve component 1, the spool control gear 3 that is connected with valve component 1, described valve component 1 comprises valve seat 1.1, be engaged in the mangetic core assembly 2 in the valve seat 1.1 and be connected suction flange 1.2, outlet(discharge) flange 1.3 and end cap 1.4 on the valve seat 1.1, described mangetic core assembly 2 comprises spool 2.1 and the gland 2.4 and the gland pad 2.2 that are slidingly matched with spool 2.1, one end of described spool 2.1 stretches out outside the end cap 1.4, and described mangetic core assembly 2 also comprises Equilibrator.
Described gland 2.4 is provided with the center step hole, the diameter of nearly valve seat 1.1 stomidiums of described center step hole is greater than the diameter of nearly spool control gear 3 stomidiums of center step hole, described Equilibrator comprises counter balance pocket 4, be enclosed within movable sheath 2.3 and the air vent that is located on the spool 2.1 on the spool 2.1, the macropore sliding fit of the center step hole of the outer peripheral surface of described movable sheath 2.3 and gland 2.4, described counter balance pocket 4 is meant the cavity that forms by between the macropore of gland 2.4 center step holes and the movable sheath 2.3, described air vent one end opening is communicated with in spool 2.1 lower end surfaces and with suction port, the other end opening of air vent is communicated with on the top of spool 2.1 and with counter balance pocket 4, and the sectional area of described movable sheath 2.3 is not less than the area of (this example is for equaling) spool 2.1 lower end surface end face cylindricals.
Described valve seat 1.1 is provided with at least one (this example is two of symmetry) through hole I 7 radially, the position of through hole I 7 is corresponding to the outer peripheral surface of gland 2.4, the position of nearly gland pad 2.2 is provided with at least one (this example is two of symmetry) through hole II 8 radially on the described gland 2.4, and through hole I 7 communicates with through hole II 8.
Described air vent comprises and is located at the axial blind hole 6 that the end on the spool 2.1 is communicated with suction port and is located at the radial direction through hole 5 that the two ends on the spool 2.1 are communicated with counter balance pocket 4 that the other end of described blind hole 6 is communicated with radial direction through hole 5.
Described spool control gear 3 comprises the cylinder 3.1 that is connected with end cap 1.4, is slidingly fitted in the piston 3.2 in the cylinder 3.1, the piston rod of described piston 3.2 is connected with an end that stretches out end cap 1.4 spool 2.1 outward, and described cylinder 3.1 two ends are respectively equipped with air inlet/outlet A3.3 and air inlet/outlet B3.4.
During assembling, at first gland pad 2.2 is put into the macropore in the axial step hole of the valve seat 1.1 that has welded suction flange 12 and outlet(discharge) flange 13 in advance, and be equipped with Sealing between gland pad 2.2 and the valve seat 1.1 and between gland pad 2.2 and the spool 2.1, the lower end surface of gland pad 2.2 is spacing by the transition bench terrace of the macropore in valve seat 1.1 axial step holes and aperture at this moment; Subsequently with movable sheath 2.3, gland 2.4 and end cap 1.4 are inserted in spool 2.1 from the top of spool 2.1 successively, and between movable sheath 2.3 and the gland 2.4, be equipped with Sealing between movable sheath 2.3 and the spool 2.1 and between gland 2.4 and the spool 2.1, because the outer surface of spool 2.1 also is the structure of step type, the diameter that is the bottom of spool 2.1 is greater than spool 2.1 upper part diameter, and movable sheath 2.3, the diameter of the center hole of gland 2.4 and end cap 1.4 is all more than or equal to spool 2.1 upper part diameter but less than the diameter of the bottom of spool 2.1, so movable sheath 2.3 is by the spacing path part at spool 2.1 of the step surface between the big path of spool 2.1 external diameters; The spool 2.1 that will put subsequently behind movable sheath 2.3, gland 2.4 and the end cap 1.4 inserts in the axial step hole of valve seats 1.1, and by bolt end cap 1.4 is fixed on the upper end of valve seat 1.1, and this moment, gland 2.4 was pressed in gland pad 2.2 upper-end surfaces by end cap 1.4; Then cylinder 3.1 and piston 3.2 conventional method by prior art is assembled, simultaneously air inlet/outlet A3.3 and air inlet/outlet B3.4 are separately fixed at the top and the bottom of cylinder 3.1, and cylinder 3.1 is fixed on the end cap 1.4; Be connected with the upper end portion of spool 2.1 by the underpart of link at last piston rod.
During use, the utility model that assembles is received on the pipeline that needs control, gas at the flow direction in the valve seat 1.1 shown in the arrow among Fig. 1, when ventilation, the gas of suction port can enter into counter balance pocket 4 through blind hole 6 and the radial direction through hole 5 on the spool 2.1, because the sectional area of movable sheath 2.3 is not less than the sectional area of (this example is for equaling) spool 2.1 sealed ends, then gas pressure has been offset the active force of inlet gas to spool 2.1 to the active force of movable sheath 2.3 in counter balance pocket 4, so the gas pressure among control air inlet/outlet A3.3 or the air inlet/outlet B3.4 comes control piston 3.2 to slide up and down, promptly controlling closing of spool 2.1 closes, make the suction port and the air outlet of valve seat 1.1 not communicate or communicate, this moment piston pilot pressure since gas pressure in counter balance pocket 4 active force of movable sheath 2.3 have been offset inlet gas also just less relatively to the active force of spool 2.1, even so spool 2.1 also can be closed normally when the pressure of suction port is higher, sealability is also more stable.
Claims (5)
1. high-pressure pneumatic stop valve, it comprises valve component (1), the spool control gear (3) that is connected with valve component (1), described valve component (1) comprises valve seat (1.1), be engaged in the mangetic core assembly (2) in the valve seat (1.1) and be connected suction flange (1.2) on the valve seat (1.1), outlet(discharge) flange (1.3) and end cap (1.4), described mangetic core assembly (2) comprises spool (2.1) and the gland (2.4) and the gland pad (2.2) that are slidingly matched with spool (2.1), one end of described spool (2.1) stretches out outside the end cap (1.4), it is characterized in that: described mangetic core assembly (2) also comprises Equilibrator.
2. high-pressure pneumatic stop valve according to claim 1, it is characterized in that: described gland (2.4) is provided with the center step hole, the diameter of the nearly valve seat of described center step hole (1.1) stomidium is greater than the diameter of the nearly spool control gear of center step hole (3) stomidium, described Equilibrator comprises counter balance pocket (4), be enclosed within the movable sheath (2.3) on the spool (2.1) and be located at air vent on the spool (2.1), the macropore sliding fit of the center step hole of the outer peripheral surface of described movable sheath (2.3) and gland (2.4), described counter balance pocket (4) is meant the cavity that forms by between the macropore of gland (2.4) center step hole and the movable sheath (2.3), described air vent one end opening is communicated with in spool (2.1) lower end surface and with suction port, the other end opening of air vent is communicated with on the top of spool (2.1) and with counter balance pocket (4), and the sectional area of described movable sheath (2.3) is not less than the area of spool (2.1) lower end surface end face cylindrical.
3. high-pressure pneumatic stop valve according to claim 2, it is characterized in that: described air vent comprises the axial blind hole (6) that is located at spool (2.1) sealed end end face and is located at the radial direction through hole (5) that the two ends on the spool (2.1) are communicated with counter balance pocket (4), one end of described blind hole (6) is communicated with suction port, and the other end of blind hole (6) is communicated with radial direction through hole (5).
4. high-pressure pneumatic stop valve according to claim 2, it is characterized in that: described valve seat (1.1) is provided with at least one through hole I (7) radially, and the position of through hole I (7) is corresponding to the outer peripheral surface of gland (2.4), the position that described gland (2.4) is gone up nearly gland pad (2.2) is provided with at least one through hole II (8) radially, and through hole I (7) communicates with through hole II (8).
5. high-pressure pneumatic stop valve according to claim 1, it is characterized in that: described spool control gear (3) comprises the cylinder (3.1) that is connected with end cap (1.4), is slidingly fitted in the piston (3.2) in the cylinder (3.1), one end of the spool (2.1) that the piston rod of described piston (3.2) is outer with stretching out end cap (1.4) is connected, and described cylinder (3.1) two ends are respectively equipped with air inlet/outlet A (3.3) and air inlet/outlet B (3.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202009927U CN201547249U (en) | 2009-11-21 | 2009-11-21 | High-pressure pneumatic stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202009927U CN201547249U (en) | 2009-11-21 | 2009-11-21 | High-pressure pneumatic stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547249U true CN201547249U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202009927U Expired - Fee Related CN201547249U (en) | 2009-11-21 | 2009-11-21 | High-pressure pneumatic stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547249U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100725A (en) * | 2014-07-21 | 2014-10-15 | 太原市鸿煷机械设备有限公司 | Ultrahigh-pressure release valve |
| CN104534103A (en) * | 2014-12-18 | 2015-04-22 | 四川安东油气工程技术服务有限公司 | Pneumatic stop valve |
| CN104806811A (en) * | 2015-05-04 | 2015-07-29 | 中国海洋石油总公司 | Deep sea valve executing mechanism with bidirectional pressure dynamic balance compensation device |
| CN107781436A (en) * | 2016-08-29 | 2018-03-09 | 河南航天液压气动技术有限公司 | A kind of super-pressure balance type pneumatic break valve |
-
2009
- 2009-11-21 CN CN2009202009927U patent/CN201547249U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100725A (en) * | 2014-07-21 | 2014-10-15 | 太原市鸿煷机械设备有限公司 | Ultrahigh-pressure release valve |
| CN104100725B (en) * | 2014-07-21 | 2016-03-23 | 太原市鸿煷机械设备有限公司 | Ultrahigh pressure Decompression valves |
| CN104534103A (en) * | 2014-12-18 | 2015-04-22 | 四川安东油气工程技术服务有限公司 | Pneumatic stop valve |
| CN104806811A (en) * | 2015-05-04 | 2015-07-29 | 中国海洋石油总公司 | Deep sea valve executing mechanism with bidirectional pressure dynamic balance compensation device |
| CN104806811B (en) * | 2015-05-04 | 2017-04-12 | 中国海洋石油总公司 | Deep sea valve executing mechanism with bidirectional pressure dynamic balance compensation device |
| CN107781436A (en) * | 2016-08-29 | 2018-03-09 | 河南航天液压气动技术有限公司 | A kind of super-pressure balance type pneumatic break valve |
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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: NINGBO XINGJIAN SPACE MANUFACTORY CO., LTD. Free format text: FORMER NAME: NINGBO XINGJIAN SPACE MANUFACTORY |
|
| CP03 | Change of name, title or address |
Address after: Yinzhou District Shiqi Street West Yangcun 315153 Zhejiang city of Ningbo Province Patentee after: Ningbo Xingjian Space Manufactory Inc. Address before: 315153 Zhejiang city of Ningbo province Yinzhou District Shi Gan Wan Hing Road No. 369 Street Patentee before: Ningbo Xingjian Space Manufactory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20131121 |