CN1215463A - Seat separating apparatus for valve apparatus - Google Patents
Seat separating apparatus for valve apparatus Download PDFInfo
- Publication number
- CN1215463A CN1215463A CN97192270A CN97192270A CN1215463A CN 1215463 A CN1215463 A CN 1215463A CN 97192270 A CN97192270 A CN 97192270A CN 97192270 A CN97192270 A CN 97192270A CN 1215463 A CN1215463 A CN 1215463A
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- Prior art keywords
- valve
- hydraulic pressure
- opening
- mobile plate
- valve body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/20—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats
- F16K3/207—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats by means of hydraulic forces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
- Sliding Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
A seat separating apparatus for a valve apparatus which is capable of accurately adjusting the amount of hydraulic pressure by separating a valve seat from the opening/closing member when opening the valve and allowing the liquid to flow through a gap formed between the opening/closing member and the valve seat. The apparatus includes a valve body having an inlet portion and an outlet portion through which a liquid flows, an opening/closing member rotatably disposed between the inlet and outlet portions of the valve body for opening/closing the valve, a valve seat assembly which is installed to be closely contacted with the opening/closing member or to be separated therefrom, and a moving member for moving the valve seat assembly.
Description
The present invention relates to valve arrangement, more particularly, relate to the valve seat segregating unit of valve arrangement, the valve seat fixed block is moved by hydraulic pressure or air pressure, thus when open/can make valve seat and open when closing valve/closing part separates.
In general, valve is engaged in various pipelines, is used for organizing the liquid stream or the air-flow of plug pipeline.According to its shape, its internal structure or its purposes, known various valves comprise gate valve, fly valve, ball valve etc.In addition, do not have class with its shape or kind, valve comprises that a valve body with exit portion of the inlet part of introducing liquid and discharge liquid, one are arranged on the valve that is used to open or blocks import and exit portion in the valve inner space rotationally and open/close part and one and be used to rotate and handle the handle member of opening/close part.
In addition, a valve seat is fixedly mounted in the inside of valve body, stably keeps valve seat and valve to open/close closed state between the part when opening/close valve and opening/be used for when closing part.
In the common valve equipment of this structure, open/open when closing part owing to rotating/close part closely to contact the valve seat that can be fixedly mounted on the valve body, thereby torque that need be relatively large, for opening/close valve, open/close part and opened/close manipulation repeatedly, valve seat is worn, and valve seat is easy to damage in the time of therefore between foreign matter is attached to valve seat and valve body.
Therefore, an object of the present invention is to provide a kind of valve seat segregating unit of valve arrangement, it can overcome the problems referred to above that run in the prior art.
Another object of the present invention provides a kind of valve seat segregating unit of valve arrangement, can move by making valve seat, is opening/is closing part and rotating in the manipulation process, make valve seat and open/closing part separates, thereby only need less torque just can open/close the rotating operation of part.
Another object of the present invention provides a kind of valve seat segregating unit of valve arrangement, it can be when closure valve seal valve seat and open/close part stably, this realizes by following manner, promptly, valve seat can be moved, when closure valve, make valve seat and open/close part and leave, prevent the prooving of valve seat, thereby improve the sealing force of valve.
Another object of the present invention provides a kind of valve seat segregating unit of valve arrangement, it is the amount of regulated fluid at last, and this realizes in the following manner, promptly, when opening valve, make valve seat and open/closing part separates, the gap that makes flow of liquid cross out/form between valve member and the valve seat.
To achieve these goals, provide a kind of valve seat segregating unit of valve arrangement, it comprises that one has the inlet part that flow of liquid crosses and the valve body of exit portion; What be used to out/close valve between import that is arranged on valve body rotationally and the exit portion opens/closes part; Install versatilely so that closely contact the valve component of opening/closing part or separate for one with it; And moving part that is used for the slide and movable valve base assembly.
Valve component comprises a horizontal component, and valve base piece is contained on the one sidepiece; And vertical part, limit first and second gaps between the groove that it forms on itself and valve body inner peripheral surface, thus be contained on the valve member valve seat respectively by deliver in first and second gaps hydraulic pressure and closely contact open/close part or separate with it.
Other advantage of the present invention, purpose and feature will further be illustrated hereinafter.
Be not that the mode that the present invention is limited is described in detail in conjunction with the following drawings by way of example, can understand the present invention more fully.
The longitudinal section of Fig. 1 is represented the gate valve that the valve seat segregating unit of valve arrangement of the present invention is suitable for;
Fig. 2 is the zoomed-in view of part " A " among Fig. 1;
The cross-sectional figure of Fig. 3 represents to be in the valve shown in Figure 2 of open mode;
The cross-sectional figure of Fig. 4 represents the valve shown in Figure 2 according to another embodiment of the present invention;
Part " B " in the detailed cross-sectional figure presentation graphs 4 of Fig. 5;
Part " C " in the detailed cross-sectional figure presentation graphs 4 of Fig. 6
Part " D " in the detailed cross-sectional figure presentation graphs 4 of Fig. 7
Part " E " in the detailed cross-sectional figure presentation graphs 4 of Fig. 8
The longitudinal section of Fig. 9 is represented the ball valve that the valve seat segregating unit of valve arrangement of the present invention is suitable for;
Part " F " in the detailed cross-sectional figure presentation graphs 9 of Figure 10;
The cross-sectional figure of Figure 11 represents the valve shown in Figure 10 according to another embodiment of the present invention.
The contrast accompanying drawing is described the valve seat segregating unit according to valve arrangement of the present invention now.
Fig. 1 represents the gate valve that the valve seat segregating unit according to valve arrangement of the present invention is suitable for, it comprises that the valve body 100, one of an inlet part 101 with flow of fluid and exit portion 102 are arranged between the inlet part 101 and exit portion 102 of valve body 100 rotationally, inlet part 101 and exit portion 102 are communicated or the valve blocked open/valve member 110, one be used for rotating valve and open/handle member 120 of valve member 110 and the valve component 130 of an inner circumferential portion that is arranged on valve body 100 versatilely.
As shown in Figure 2, valve component 130 comprises a ring-type mobile plate 133, and this mobile plate inserts in the groove 103 that forms on the step shape in the inner circumferential portion of valve body 100 versatilely and has a horizontal component 131 and a vertical part 132; A retaining ring 134, it is used to prevent that mobile plate 133 from deviating from from groove 103; A clasp 135, it supports retaining ring 134 with being used for fixing; And a valve base piece 136, it is connected on the side direction part of driving ring 133, and closely contacts with the surface of opening/closing part 110 when block valve.
Spring fixed groove 104 forms in a side of valve body 100, and a spring 141 inserts in the spring fixed grooves 104, and the mode of the elastic force by providing out/close part 110 to mobile plate 133 is support movable plate 133 and open/close part 110 flexibly.In addition, a plurality of packing rings 137 are separately positioned on the horizontal component 131 of mobile plate 133 and retaining ring 134, mobile plate 133 and vertical part 132, and between the upper and lower surface of retaining ring 134.
In addition, be arranged on valve body 100 outside in first and second hydraulic path 143 and 143 ' be formed in the groove 103 of valve body 100 of first and second nozzles 142 and 142 ' be communicated with.
First and second nozzles 142 are connected with an external hydraulic supply equipment (not shown) with 142 ' respectively, first and second hydraulic path 143 and 143 ' with the groove 103 of the vertical part 132 of mobile plate 133 and valve body 100 between first and second gaps 144 and 144 ' be communicated with that limit, thereby when hydraulic pressure imports first gap 144 into by first hydraulic path 143, mobile plate 133 overcomes the elastic force of spring 141, along moving, be fixed on valve base piece 136 and the surface isolation of opening/close part 110 on the end of horizontal component 131 of mobile plate 133 in contrast to the direction of opening/close part 110.When hydraulic pressure by 144 ' time of second hydraulic path 143 ' import into, second gap, part 110 is shifted to out/closed to mobile plate 133, thereby the tight contact surfaces of opening/closing part 110 of valve base piece 136.
The contrast accompanying drawing is described the operation according to the valve seat segregating unit of valve arrangement of the present invention now.
As depicted in figs. 1 and 2, when handle with sleeve spare 120, open/close part 110 and rotate, thereby the inlet part 101 of valve body 100 and exit portion 102 are opened or block.
At first, in the state that valve gets clogged, as shown in Figure 2, because part 110 is shifted to out/closed to mobile plate 133 by the elastic force of spring 141, thereby be fixed on the surface that part 110 was opened/closed in valve base piece 136 contacts on the mobile plate 133, therefore, make valve can be in blocked state.At this moment, the hydraulic pressure supply equipment that connects from the outside when hydraulic pressure imports 144 ' time of second gap into, because except that the elastic force of spring 141, part 110 is further shifted to out/closed to mobile plate 133, thereby can keep the stable blocked state of valve.
In this case, when needs were opened valve, as shown in Figure 3, the hydraulic pressure supply equipment that hydraulic pressure connects from the outside infeeded first gap 144 by first nozzle 142.Therefore, mobile plate 133 oppositely moves with above-mentioned direction, then, the valve base piece 136 that is fixed in mobile plate 133 become with open/valve member 110 separates.Valve base piece 136 with open/state that valve member 136 separates in, open/close part 110 and rotated by handle member 120, therefore open valve.In addition, opposite with above-mentioned situation, when the needs block valve, opening/closing in part 110 rotation processes in the state that uses hydraulic pressure to make valve base piece 136 and the surface isolation of opening/close part 110, open/close part 110 and be rotated and be on the closed position.Thereafter, therefore hydraulic pressure, form the blocked state of valve by second nozzle 142 ' import second gap 144 into.
Thereafter, because for opening/close valve, opening/closing in the rotation process of part 110, valve base piece 136 always with open/valve member 110 separates, thereby can use relative to less torque and rotate out/close part 110, thereby can prevent wearing and tearing and the damage that valve seat member produces owing to the friction of valve base piece 136.
In addition, when needing small amounts of liquid mobile, make hydraulic pressure import first space segment 144 into and need not to rotate out/close part 110 and along in contrast to the direction moving active plate 133 of opening/close part 110 from the hydraulic pressure supply equipment, thereby be installed on mobile plate 133 ends valve base piece 136 with open/close part 110 and separate, institute so that small amounts of liquid can flow through valve base piece 136 and open/close the gap of formation between the part 110.The gap of the Xing Chenging difference that is sent to the elastic force of the hydraulic pressure of first gap 144 and spring 141 by control can be adjusted like this.
Open at valve/the closed operation process in, by first and second nozzles 142 and 142 ' deliver to, first and second gaps 144 and 144 ' hydraulic pressure, depend on the opening of valve/closed operation and get clogged or be provided.That is to say, when hydraulic pressure reaches first gap 143, second gap gets clogged and can not get the hydraulic pressure supply, when hydraulic pressure reaches 143 ' time of second gap, second gap 143 ' get clogged and can not get the hydraulic pressure supply, deliver to 143 ' time of second gap when hydraulic pressure, first gap 143 gets clogged and can not get the hydraulic pressure supply.
In addition, in various embodiments of the present invention, a plurality of Sealings 137 are arranged in mobile plate 133 and the retaining ring 134, reach first gap 143 or the 143 ' time realization sealing of second gap with convenient hydraulic pressure, and still, the use of Sealing is not limited to this.Also can adopt various modification in order to realize same sealing effectively.
The hydraulic pressure supply equipment is mentioned during in conjunction with hydraulic pressure; But its use is not limited thereto, and for example, air pressure also can be used to realize same purpose.Obviously those skilled in the art can be realized modification and not exceed scope of the present invention.
In order to implement various embodiments of the present invention, the shape and the fixed structure of actuator 133 disclosed as an example.In the present invention, spring 141 is used for providing predetermined elastic force to opening/close part 110; But the position of spring also can change, and makes elastic force along mobile plate 133 is applied from the direction of opening/closing part 110 and leave.
Fig. 4 to 8 represents the second embodiment of the present invention.In the second embodiment of the present invention, the sealing configuration of first and second gaps of first embodiment of the invention and the fixed structure of mobile plate have been done change.All the other structures repeat no more, and part identical with first embodiment in second embodiment of the invention uses identical label.
Fixed structure according to the mobile plate of second embodiment of the invention is described now.
Retaining ring 134 is inserted in the groove that forms on the outer peripheral surface of valve body 100 with a clasp 135, have through hole 151 and 151 ' fixed plate 150 regularly in the insertion groove 103, groove 103 forms perpendicular to fixed plate 134.The through hole 151 and 151 of fixed plate 150 ' with first and second hydraulic path 143 and 143 ' be communicated with, thereby with hydraulic pressure send into first and two gaps 144 and 144 that the vertical part 132 by mobile plate 133 limits '.
In addition, form a spring fixed groove 104 at the rear portion of mobile plate 133, thereby spring 141 opening/closing on the direction of part 110, opening/closing between the groove 103 of part 110 and valve body and flexibly supporting mobile plate 133.
In addition first and second gaps 144 and 144 ' in be provided with bellows 152 and 152 ' so that wherein hydraulic pressure is imported in sealing into.
Be contained in an end of the bellows 152 in first gap 144, as shown in Figure 5, with Sealing 153 closely with retaining ring 134 and fixed plate 150 between one contact by touching part, as shown in Figure 6, the other end of bellows is fixedly connected to the upper corner of the vertical part 132 of mobile plate 133, when importing first gap 14 into convenient hydraulic pressure it is sealed.
In addition, be contained in second gap 144 ' in bellows 152 ' an end, as shown in Figure 7, between the groove 103 of the other end of Sealing 153 ' be fixedly attached to fixed plate 150 and valve body 100, the other end of this bellows, as shown in Figure 8, be fixedly attached to the upper corner of the vertical part 132 of mobile plate 133, thereby can keep its sealing state when hydraulic pressure imports 144 ' time of second gap into.
In the first embodiment of the present invention, when using Sealing, Sealing can wear and tear owing to friction, thereby should change.But in the second embodiment of the present invention,, can avoid the problems referred to above, thereby can prolong the working life of valve because liquid line pipe is used for identical purpose.
The contrast accompanying drawing is described the operation of second embodiment of the invention now.
Open or when closing valve, when hydraulic pressure is carried by first nozzle 142, first bellows 152 expands, mobile plate 133 is being moved on the direction of opening/close part 110, then, open/close part 110 valve base piece 136 with open/close the state that part 110 separates in rotate, thereby can use relative to less torque and rotate out/close part 110, thus the wearing and tearing of anti-valve base piece 136.When block valve, hydraulic pressure by second hydraulic pressure nozzle 142 ' reach, second gap 144 ', thereby second bellows expansion makes mobile plate 133 shift to out/close part 110, thereby the surface that makes valve base piece 136 contacts open/close part 110, thereby the steady closure state of maintenance valve.
Fig. 9 and the 10 expressions ball valve that device was suitable for that prevents the prooving of valve seat of the present invention.Identical with gate valve shown in Figure 1, the mobile plate that links to each other with valve base piece install can be movable, thereby the opening of valve/closed operation be valve base piece with open/close the state that part separates in carry out.
In more detail, as shown in Figures 9 and 10, the mobile plate 133 that connects valve base piece 136 uses clasp 135 to be installed in the groove 103 of valve body 100 with fixed plate 134, the vertical part 132 of mobile plate 133 by a spring 141 by opening/close part 100, that is, a ball flexibly supports.In addition, first and second gaps 144 and 144 that in the groove 103 of valve body 100, limit by the vertical part 132 of mobile plate 133 ' with first and second hydraulic path 143 and 143 ' be communicated with, a plurality of Sealings 137 are arranged between the upper and lower surface of the horizontal component 131 of mobile plate 133 and vertical part 132 and retaining ring 134, make first and second gaps 144 and 144 ' inside obtain sealing.
Therefore, opening/close part 11 is handled so that open/close valve.When hydraulic pressure reaches first gap 144 by first nozzle 142, the hydraulic buckling that first gap 144 is reached.Therefore,, mobile plate 133 is moved backward because this expansive force has overcome the elastic force of spring 141, thus valve base piece 136 with open/close part 110 and separate.Therefore, open/close part 110 and handle rotationally, the rotation that can use less torque to open/close part 110 is handled.Also can prevent the damage or the wearing and tearing of valve base piece 136 in addition.
In addition, when hydraulic pressure by 144 ' time of second hydraulic path 143 ' reach, second gap, part 110 is shifted to out/closed to mobile plate 133, makes the closely contact surface of opening/closing part 110 of valve base piece 136, thereby can stably keep blocked state.
Figure 11 is one embodiment of the present of invention, and it adopts a hydraulic pressure delivery member, and this hydraulic pressure delivery member is only used when valve blocks.Have only the shape of mobile plate and the groove that on valve body, forms different with aforementioned each embodiment.
That is to say, mobile plate 133 is fixed in the groove 103 of valve body 100 by clasp 135, a gap 144 is communicated with hydraulic pressure nozzle 142 by hydraulic path 143, and be formed between mobile plate 133 and the groove 103, mobile plate 133 is at the yielding support that is subjected to spring 141 in contrast to the direction of opening/close part 110, and this spring is inserted in the spring fixed groove 104 that forms in the mobile plate 133 and is arranged between mobile plate 133 and the clasp 135.
Therefore, when rotate out for opening/close valve/when closing part 110, mobile plate 133 is by the resilient rear-moving of spring 141, make valve base piece 136 and open/closing part 136 separates.At this moment, gap 103 gets clogged and can not get hydraulic pressure.
But when closure valve, hydraulic pressure imports gap 103 into by hydraulic pressure nozzle 142.At this moment, mobile plate 133 has overcome the elastic force of spring 141, is moved toward out/closes part 110, thereby is connected in the valve base piece 136 tight surfaces of opening/closing part 110 that contact of its end, thereby keeps the stable blocked state of valve.
On the contrary, the position of spring 141 and hydraulic pressure nozzle 142 and hydraulic path 143 can change, and make the directive effect of the elastic force of spring 141 along block valve, in opening/close part 110 rotation processes, can use hydraulic pressure make valve base piece 136 and open/closing part 110 separates.
The situation that embodiments of the invention are used for gate valve and ball valve has so far been described.The fly valve of employing dish or analog also can adopt embodiments of the invention.
As mentioned above, in according to valve seat segregating unit of the present invention since valve base piece when opening/closing part and rotating with open/close part and separate, thereby can use less torque to finish opening/closed operation of valve.In addition, opening/closing in the process of valve, make valve seat and open/closing part separates and rotates open and close spare, can prevent the damage and wear that valve seat causes because of friction like this.In addition, when block valve, use hydraulic pressure make valve seat closely contact open/close part and can realize stable blocked state for valve.
Though for purpose of description discloses embodiments of the invention, obviously this professional technician can make various modifications and increase and decrease and the scope of the present invention that do not exceed claims and limited.
Claims (16)
1. be used for the valve seat segregating unit of valve arrangement, it comprises:
Valve body with inlet part and exit portion of flow of fluid;
What be used to out/close valve between import that is arranged on valve body rotationally and the exit portion opens/closes part;
One install can be with respect to opening/close the valve component that part moves; And
The device that is used for the slide and movable valve base assembly.
2. device according to claim 1 is characterized in that: described valve body comprises a groove that forms on the circumferential surface within it.
3. device according to claim 1 is characterized in that: described valve component prevents from that by one device is bearing in the groove of valve body.
4. device according to claim 1 is characterized in that: described valve component is a mobile plate, and this mobile plate comprises:
A horizontal component, this part has the valve base piece that is contained on the one side; And
A vertical part that in the groove of valve body, limits first and second gaps.
5. device according to claim 3 is characterized in that: describedly prevent from that device comprises:
A retaining ring, it is fixed on the inner peripheral surface of groove of valve body, and it is used for limiting first gap between the vertical portion of valve body and mobile plate is divided; And
A clasp, it is used to prevent that retaining ring from deviating from.
6. device according to claim 1 is characterized in that: described shifter comprises:
A hydraulic pressure feeding mechanism, it is used for providing hydraulic pressure to first and second gaps; And
A spring that is inserted in the spring fixed groove that forms in the groove of valve body, it is used for providing elastic force to the vertical part of mobile plate.
7. device according to claim 6 is characterized in that: described hydraulic pressure feeding mechanism comprises:
First and second hydraulic pressure nozzles that link to each other with an outside hydraulic pressure supply equipment that is connected; And
First and second hydraulic path, it is used to be communicated with first and second hydraulic pressure nozzles and first and second gaps.
8. according to described device in the claim 4 to 7, it is characterized in that: described first and second gaps are sealed by seal arrangement.
9. device according to claim 8 is characterized in that: described seal arrangement comprises:
Be individually fixed in first Sealing on the upper and lower of Hui Dinghuan; And
Be individually fixed in the horizontal component of valve component and second Sealing of vertical part.
10. device according to claim 8 is characterized in that: described seal arrangement is a bellows.
11. device according to claim 10 is characterized in that: described bellows comprises:
Be arranged on first bellows in first gap, the one end closely is arranged between the contact segment of a retaining ring and an end of fixed plate, and its other end is fixedly connected to the vertically top of part of mobile plate; And
Be arranged on second bellows in second gap, the one end closely is arranged between the slot part of another end of fixed plate and valve body, and its other end is fixedly connected to the vertically upper corner of part of mobile plate.
12. device according to claim 11 is characterized in that: described fixed plate comprises the through hole that is communicated with first and second hydraulic path respectively.
13. device according to claim 1 is characterized in that: described opening/close part is the ball of ball valve.
14. device according to claim 1 is characterized in that: described opening/close part is the dish of fly valve.
15. device according to claim 6 is characterized in that: described spring is used for applying elastic force along the direction of opening/close part to the vertical portion of mobile plate branch.
16. device according to claim 6 is characterized in that: described spring is used for along applying elastic force in contrast to the direction of opening/close part to the vertical portion of mobile plate branch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR55228/96 | 1996-11-16 | ||
| KR19960055228 | 1996-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1215463A true CN1215463A (en) | 1999-04-28 |
Family
ID=19482452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97192270A Pending CN1215463A (en) | 1996-11-16 | 1997-11-17 | Seat separating apparatus for valve apparatus |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100259608B1 (en) |
| CN (1) | CN1215463A (en) |
| WO (1) | WO1998025057A2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100590334C (en) * | 2008-02-05 | 2010-02-17 | 朱晓丰 | Sealing face wear-proof hard seal ball valve |
| CN102392902A (en) * | 2011-07-12 | 2012-03-28 | 天津祥嘉流体控制系统有限公司 | Top-mounted ball valve |
| CN102878311A (en) * | 2012-09-11 | 2013-01-16 | 宝钢不锈钢有限公司 | Electromagnetic double-sided sealing valve |
| CN107246495A (en) * | 2017-06-02 | 2017-10-13 | 永嘉县信诚科技服务有限公司 | Electric gate valve |
| CN109804188A (en) * | 2016-10-04 | 2019-05-24 | 保尔伍斯股份有限公司 | Gate valve for chemical device |
| CN110397749A (en) * | 2019-08-02 | 2019-11-01 | 黄洪刚 | A kind of gate valve |
| US20230003305A1 (en) * | 2019-12-18 | 2023-01-05 | Cameron International Corporation | Valve insert system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10065714B4 (en) * | 2000-12-29 | 2004-04-01 | Torsten Burgmer | flat slide |
| JP2003166655A (en) * | 2001-09-19 | 2003-06-13 | Smc Corp | Poppet type valve seal mechanism |
| KR100782900B1 (en) * | 2005-05-13 | 2007-12-06 | 이성수 | Ball valve and valve open-close system with it |
| KR100947423B1 (en) * | 2007-10-02 | 2010-03-12 | 신상열 | Butterfly Valve |
| DE102008017099B4 (en) | 2008-04-02 | 2018-06-14 | Torsten Burgmer | flat slide |
| CN102094993B (en) * | 2010-11-29 | 2012-07-04 | 河北联合大学 | Reliable seal dust discharging fixed ball valve |
| KR102042787B1 (en) * | 2012-09-20 | 2019-11-08 | 한국전력공사 | Noise reduction structure of pipe shutting valve |
| US9885420B2 (en) | 2015-05-07 | 2018-02-06 | Sri Energy, Inc. | Gate valve |
| CN107965585A (en) * | 2017-11-28 | 2018-04-27 | 永嘉县信诚科技服务有限公司 | Full-automatic high-temperature opens and closes automatically controlled gate valve without friction |
| US11655900B2 (en) * | 2018-11-01 | 2023-05-23 | Oil States Energy Services, L.L.C. | Valve with pressure differential seating |
| US11572956B2 (en) * | 2018-11-01 | 2023-02-07 | Oil Sttes Energy Services, L.L.C. | Valve with pressure differential seating |
| US11480253B2 (en) * | 2019-07-31 | 2022-10-25 | Oil Patch Group, Inc. | Hydralock frac valve |
| US11674602B2 (en) * | 2020-02-03 | 2023-06-13 | Deltavalve, Llc | Automated line blind |
| CN112727829A (en) * | 2020-12-31 | 2021-04-30 | 兰州理工大学 | Hydraulic valve for realizing damping adjustment by adjusting fluid flow area |
| US11852258B2 (en) * | 2020-12-31 | 2023-12-26 | Tapcoenpro, Llc | Systems and methods for purging an isolation valve with a liquid purge medium |
| US11767918B2 (en) | 2021-06-24 | 2023-09-26 | Nitro Fluids, LLC. | Sand lock valve |
| KR102540036B1 (en) * | 2021-07-29 | 2023-06-05 | (주) 유니플로 | Opening and closing valve with foreign matter removal function |
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| US3776506A (en) * | 1971-12-15 | 1973-12-04 | Acf Ind Inc | Valve structure having fluid pressure actuated sealing members |
| DE2945153A1 (en) * | 1979-11-08 | 1981-05-27 | M.I.B. S.P.A. Macchine Industriali Brevettate S.p.A., Casalserugo, Padua | Ball-cock with fire-proof seat - has movable and stationary seats connected by metal bellows forming seal |
| DE3544609A1 (en) * | 1985-12-17 | 1987-06-19 | Waeschle Maschf Gmbh | CALOTTER SLIDER |
| DE4423801C1 (en) * | 1994-07-01 | 1995-11-23 | Borsig Kugelhahn Gmbh | Device for sealing shut-off devices arranged in lines for the conveyance of liquids or gases |
| IT1277580B1 (en) * | 1995-09-14 | 1997-11-11 | Nuovo Pignone Spa | PERFECTED DEVICE FOR HANDLING THE SEATS OF A BALL VALVE |
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1997
- 1997-11-17 KR KR1019970060416A patent/KR100259608B1/en not_active IP Right Cessation
- 1997-11-17 CN CN97192270A patent/CN1215463A/en active Pending
- 1997-11-17 WO PCT/KR1997/000223 patent/WO1998025057A2/en active Application Filing
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100590334C (en) * | 2008-02-05 | 2010-02-17 | 朱晓丰 | Sealing face wear-proof hard seal ball valve |
| CN102392902A (en) * | 2011-07-12 | 2012-03-28 | 天津祥嘉流体控制系统有限公司 | Top-mounted ball valve |
| CN102392902B (en) * | 2011-07-12 | 2013-02-27 | 天津祥嘉流体控制系统有限公司 | Top-mounted ball valve |
| CN102878311A (en) * | 2012-09-11 | 2013-01-16 | 宝钢不锈钢有限公司 | Electromagnetic double-sided sealing valve |
| CN109804188A (en) * | 2016-10-04 | 2019-05-24 | 保尔伍斯股份有限公司 | Gate valve for chemical device |
| CN107246495A (en) * | 2017-06-02 | 2017-10-13 | 永嘉县信诚科技服务有限公司 | Electric gate valve |
| CN110397749A (en) * | 2019-08-02 | 2019-11-01 | 黄洪刚 | A kind of gate valve |
| CN110397749B (en) * | 2019-08-02 | 2020-09-01 | 立信阀门集团有限公司 | Gate valve |
| US20230003305A1 (en) * | 2019-12-18 | 2023-01-05 | Cameron International Corporation | Valve insert system |
| US11796069B2 (en) * | 2019-12-18 | 2023-10-24 | Cameron International Corporation | Valve insert system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100259608B1 (en) | 2000-07-01 |
| KR19980042500A (en) | 1998-08-17 |
| WO1998025057A3 (en) | 1998-09-03 |
| WO1998025057A2 (en) | 1998-06-11 |
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