CN201487266U - Parallel seat gate valve - Google Patents
Parallel seat gate valve Download PDFInfo
- Publication number
- CN201487266U CN201487266U CN2009201575265U CN200920157526U CN201487266U CN 201487266 U CN201487266 U CN 201487266U CN 2009201575265 U CN2009201575265 U CN 2009201575265U CN 200920157526 U CN200920157526 U CN 200920157526U CN 201487266 U CN201487266 U CN 201487266U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- valve rod
- gate plate
- wedge block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model belongs to a valve device, in particular to a parallel seat gate valve, which comprises an electric driving device, a valve rod nut, a valve rod, a valve body, a valve body, a valve cover, a cambered plate, a fixing shaft, a guide structure and a gate plate component, wherein the electric driving device is arranged on the topmost end, a position on the valve seat, which corresponds to the gate plate is provided with a sealing surface, the gate plate component comprises an upstream gate plate and a downstream gate plate, an upper wedge block and a lower wedge block are arranged between the upstream gate plate and the downstream gate plate, the upper wedge block and the lower wedge block are provided with corresponding inclined planes, and fastening screws orderly pass through the downstream gate plate, fastening piece square nuts, the upper wedge block, anther fastening piece and the upstream gate plate, and are fixed by nuts. The parallel seat gate valve has the effects that the valve completely achieves localization, obviously reduces the production cost, obviously reduces the production cycle compared with similar imported products, and effectively solves the condition that the product affects the production cycle. Furthermore, the parallel seat gate valve achieves unlocking through the inclined planes and the gate plates, has appropriate self-locking sensitivity, and can not generate the situation of accidental self-locking.
Description
Technical field
The utility model belongs to valving, is specifically related to a kind of parallel Gate valve.
Background technique
Parallel Gate valve of the present utility model, i.e. wedging type parallel double-flashboard gate valve mainly is applicable to the million kilowatt pressurized-water reactor nuclear power plant, plays the containment isolation features in system, belongs to one of critical valves in the nuclear power station.
It is long that traditional this types of nuclear electric valve is depended on import, cost height, haul-cycle time unduly, has a strong impact on manufacturing schedule sometimes, and the valve auto-lock function of import is too sensitive, is easy to occur unnecessary self-locking situation.
Summary of the invention
The purpose of this utility model is the defective at prior art, and the parallel Gate valve of low, the anti-self-locking of a kind of cost is provided.
The utility model is achieved in that a kind of parallel Gate valve, comprise the Vidacare corp that is arranged on top, Stem Mut is set below Vidacare corp, and Stem Mut can be by the three-jaw structure with the output shaft of Vidacare corp together forward or backward rotation, the inboard of Stem Mut is provided with valve rod, be provided with corresponding screw thread on the outer side wall of the madial wall of Stem Mut and valve rod, Stem Mut is fixed in the groove of valve gap upper end by two bearings up and down.The valve gap lower end is provided with valve body, connects by bolt.At the valve gap middle part guiding rib is set, be provided with guide structure in the position corresponding, valve rod middle part with guiding rib, guide structure is a tabular rigid objects, this guide structure is fixed on the valve rod by pin, and guide structure stretches out the part of valve rod and establishes groove, and guiding rib is passed by groove, the valve rod lower end is by the flashboard assembly that is threaded, the flashboard assembly both sides are provided with flashboard, at body cavity and flashboard corresponding position valve seat are set, and flashboard and valve seat are fitted by sealing surface and realized sealing function.
Described flashboard assembly comprises the flashboard that is located at two ends, the upstream flashboard is all identical with downstream flashboard size structure, be circular tabular, on its relative face, be provided with projection, on flashboard, be provided with and the fastening screw trip bolt corresponding groove, between upstream flashboard and downstream flashboard, be provided with voussoir and lower wedge block, lower wedge block and last voussoir are provided with corresponding wedge surface, last voussoir is provided with and the corresponding through hole of flashboard projection, upper half part of last voussoir is provided with square groove, in groove, be provided with square nut, the outside at square nut is provided with limiting stopper, top at last voussoir is provided with through hole, is provided with tapped hole on the top of square nut, and this through hole and tapped hole are corresponding with valve rod, at square nut, be equipped with the through hole corresponding on last voussoir and the limiting stopper with fastening screw trip bolt, fastening screw trip bolt passes the downstream flashboard successively, limiting stopper, square nut, last voussoir, another limiting stopper and upstream flashboard are fixed with nut, and locking with packing ring.
Aforesaid a kind of parallel Gate valve wherein, is provided with filler between the sidewall of valve gap and valve rod, also be provided with the mobile load filler device on the sidewall of valve rod above the valve gap.
Aforesaid a kind of parallel Gate valve wherein, is provided with on the surface of contact of valve gap middle part and valve rod and draws neglected loading and put, and draws neglected loading and is changed to pipeline configuration, and it is communicated with space between the sidewall of valve gap and valve rod.
Use the effect of model utility to be: the production of this types of nuclear electric valve realizes production domesticization fully, and cost of production obviously reduces, and the manufacture cycle obviously shortens than import like product, efficiently solves the situation that this product influences the manufacture cycle.The utility model can effectively prevent the generation of valve locking phenomenon by the design of bevel angle in addition.
Description of drawings
Fig. 1 is the structural representation of the parallel Gate valve that provides of the utility model;
Fig. 2 is the local enlarged diagram of flashboard assembly among Fig. 1;
Fig. 3 is the assembling schematic representation of each part of flashboard assembly.
Among the figure: 1. valve body, 2. valve seat, 3. flashboard assembly, 4. valve rod, 5. pad, 6. valve gap, 7. draw that neglected loading is put, 8. mobile load filler device, 9. guide structure, 10. voussoir, 16. square nuts, 17. limiting stoppers, 18. fastening screw trip bolts, 19. nuts on Stem Mut, 11. Vidacare corps, 12. cambered plates, 13. flashboards, 14. lower wedge blocks, 15..
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing
As shown in Figure 1, a kind of parallel Gate valve, comprise the Vidacare corp 11 that is arranged on top, Vidacare corp 11 is used to valve that necessary power is provided, the K1-2HA3031 type Vidacare corp that this Vidacare corp 11 can select for use Yangzhou Electric Power Equipment Repair ﹠ Manufacture Factory to produce also can be selected commercially available prod of the same type for use.Stem Mut 10 is set below Vidacare corp 11, Stem Mut 10 by bearing fixing in valve gap 6 upper end grooves.Stem Mut 10 is connected with Vidacare corp by existing three-jaw Placement, can be with the output shaft of Vidacare corp 11 together forward or backward rotation.The inboard of Stem Mut 10 is provided with valve rod 4.Be provided with corresponding screw thread on the outer side wall of the madial wall of Stem Mut 10 and valve rod 4, Stem Mut 10 is delivered to driving force on the valve rod 4 by screw thread.Middle part at valve gap 6 is provided with guiding rib, on the valve rod 4 with valve gap 6 on the corresponding position of guiding rib guide structure 9 is set.Guide structure 9 is a tabular rigid objects, and this guide structure 9 is fixed on the valve rod 4 by pin, and the part that guide structure 9 stretches out valve rod 4 is provided with the groove that runs through up and down, and described guiding rib is passed by this groove.Muscle is fixing can not to rotate because guide structure 9 is directed to, and when Stem Mut 10 rotated with Vidacare corp 11, guide structure 9 can be transformed into rotatablely moving of Stem Mut 10 linear motion of valve rod 4.Between the sidewall of valve gap 6 and valve rod 4, be provided with filler, this filler is used to prevent that the interior medium of cavity that valve gap 6 and valve body 1 form from can not produce leakage between the sidewall of valve gap 6 and valve rod 4, filler can be selected the braiding Expanded graphite for use, also can select polytetrafluoroethylmaterial material for use.Also be provided with mobile load filler device 8 on the sidewall of valve rod 4 above the valve gap 6, this mobile load filler device 8 is used to compress filler, makes sealing more reliable.The structure of piston packing device 8 can be selected any one hold down gag of the prior art for use.If the sealing of said apparatus still can not seal fully, so just have between the sidewall of a small amount of medium by valve gap 6 and valve rod 4 and leak out, therefore on the surface of contact of the neck of valve gap 6 and valve rod 4, be provided with and draw neglected loading and put 7.Draw neglected loading and put 7 for tube equipment, it and valve gap 6 are communicated with space between valve rod 4 sidewalls, will draw neglected loading when needed and put with other pipelines and link to each other, can be with the medium discharge of leakage.In the lower end of valve gap 6 valve body 1 is set, seals by pad 5 between valve gap and the valve body, and connect by bolt.Valve rod 4 lower ends are by the flashboard assembly 3 that is threaded, and flashboard assembly 3 both sides are provided with flashboard, at valve body 1 inner chamber and flashboard corresponding position valve seat 2 are set, and flashboard and valve seat 2 are fitted by sealing surface and realized sealing function.
As shown in Figures 2 and 3, flashboard assembly 3 comprises the flashboard 13 that is located at two ends, and the flashboard 13 that medium first and in the valve contacts is called the upstream flashboard, and the flashboard 13 that medium back and in the valve contacts is called the downstream flashboard.The upstream flashboard is all identical with downstream flashboard size structure, and it is tabular to be circle, is provided with projection on its relative face, is provided with on flashboard and the limiting stopper corresponding groove.Between upstream flashboard and downstream flashboard, be provided with voussoir 15 and lower wedge block 14.Lower wedge block 14 and last voussoir 15 are provided with corresponding wedge surface, and last voussoir 15 lower ends are provided with and the corresponding hole of flashboard 13 projectioies.Upper half part of last voussoir 15 is provided with square groove, is provided with square nut 16 in groove, is provided with limiting stopper 17 in the outside of square nut 16.Top at last voussoir 15 is provided with through hole, is provided with groove on the top of square nut 16, and this through hole and groove are corresponding with valve rod 4.Square nut 16, on be equipped with the through hole corresponding on voussoir 15 and the limiting stopper 17 with fastening screw trip bolt 18.To go up voussoir 15 during assembling and lower wedge block 14 correspondences place, square nut 16 is placed in the through hole on voussoir 15 tops, two ends are provided with limiting stopper 17, upstream flashboard and downstream flashboard are arranged in the hole of voussoir 15 and lower wedge block 14, pass downstream flashboard 13, limiting stopper 17 square nuts 16 successively, go up voussoir 15, another limiting stopper 17 and upstream flashboard 13 with fastening screw trip bolt 18, fixing with nut 19.Do not needing nut 19 is fastened on maximum position fixedly the time with nut 19, the effect that fastening screw trip bolt 18 is set is that flashboard assembly 3 is fixing, guarantees that flashboard assembly 3 does not break away from valve seat 2 sealing surfaces when opening.
Working principle of the present utility model and working procedure are roughly as follows: when the needs throttle down, start Vidacare corp 11, Vidacare corp 11 drives Stem Mut 10 and rotates; Because the rotation of the acting in conjunction Stem Mut 10 of screw thread and guide structure 9 converts the downward linear motion of valve rod 4 to; The valve rod 4 that moves downward promotes flashboard assembly 3 downwards, lower wedge block 14 in the flashboard assembly 3 and last voussoir 15 are the motion of both direction to the left and right with downward movement conversion under the effect on inclined-plane, promote the both sides flashboard and be adjacent to sealing surface of seat, upstream flashboard and downstream flashboard are fitted in the effect that reaches sealing on the sealing surface of seat closely.When needs are opened valve, reverse direction actuation Vidacare corp 11, can move upward with preceding similar principle effect lower valve rod 4, valve rod 4 is applied on the voussoir 15 and reduces, the upstream flashboard is promoting voussoir 15 and lower wedge block 14 move toward one another under the effect of fluid pressure, because voussoir 15 can move up in the existence on inclined-plane, the last voussoir 15 that moves up moves upward valve opening by the moving downstream of the pore area corresponding with flashboard flashboard.
Claims (3)
1. parallel Gate valve, it is characterized in that: comprise the Vidacare corp (11) that is arranged on top, in the below of Vidacare corp (11) Stem Mut (10) is set, and Stem Mut (10) can be with the output shaft of Vidacare corp (11) together forward or backward rotation by the three-jaw structure, the inboard of Stem Mut (10) is provided with valve rod (4), on the madial wall of the outer side wall of valve rod (4) and Stem Mut (10), be provided with corresponding screw thread, Stem Mut is fixed in the groove of valve gap upper end by two bearings up and down, the valve gap lower end is provided with valve body (1), connect by bolt, the valve gap middle part is provided with guiding rib, be provided with guide structure (9) in the position corresponding, valve rod (4) middle part with described guiding rib, guide structure (9) is a tabular rigid objects, this guide structure (9) is fixed on the valve rod (4) by pin, the part that guide structure (9) stretches out valve rod (4) is provided with groove, guiding rib is passed by groove, the valve rod lower end is by the flashboard assembly that is threaded, the flashboard assembly both sides are provided with flashboard, at body cavity and flashboard corresponding position valve seat is set, flashboard and valve seat are fitted by sealing surface and are realized sealing function
Described flashboard assembly (3) comprises the flashboard (13) that is located at two ends, the upstream flashboard is all identical with downstream flashboard size structure, be circular tabular, on its relative face, be provided with projection, on flashboard, be provided with and the fastening screw trip bolt corresponding groove, between upstream flashboard and downstream flashboard, be provided with voussoir (15) and lower wedge block (14), lower wedge block (14) and last voussoir (15) are provided with corresponding wedge surface, last voussoir (15) is provided with and the corresponding hole of flashboard (13) projection, upper half part of last voussoir (15) is provided with square groove, in groove, be provided with square nut (16), be provided with limiting stopper (17) in the outside of square nut (16), top at last voussoir (15) is provided with through hole, top at square nut (16) is provided with tapped hole, this through hole and tapped hole are corresponding with valve rod (4), in square nut (16), be equipped with on last voussoir (15) and the limiting stopper (17) and the corresponding through hole of fastening screw trip bolt (18), fastening screw trip bolt (18) passes the downstream flashboard successively, limiting stopper (17), square nut (16), last voussoir (15), another limiting stopper (17) and upstream flashboard, fixing with nut (19), and locking with packing ring.
2. a kind of parallel Gate valve as claimed in claim 1 is characterized in that: be provided with filler between the sidewall of valve gap (6) and valve rod (4), also be provided with mobile load filler device (8) on the sidewall of the top valve rod (4) of valve gap (6).
3. a kind of parallel Gate valve as claimed in claim 1 or 2, it is characterized in that: on the surface of contact of valve gap (6) middle part and valve rod (4), be provided with and draw neglected loading and put (7), draw neglected loading and put (7) for pipeline configuration, it is communicated with space between the sidewall of valve gap (6) and valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201575265U CN201487266U (en) | 2009-05-25 | 2009-05-25 | Parallel seat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201575265U CN201487266U (en) | 2009-05-25 | 2009-05-25 | Parallel seat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487266U true CN201487266U (en) | 2010-05-26 |
Family
ID=42426145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201575265U Expired - Lifetime CN201487266U (en) | 2009-05-25 | 2009-05-25 | Parallel seat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487266U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207223A (en) * | 2011-05-30 | 2011-10-05 | 上海阀门厂有限公司 | Magnetic transmission electric gate valve |
| CN102454804A (en) * | 2010-10-21 | 2012-05-16 | 江苏省鑫通阀门制造有限公司 | Double-shutter gas gate valve |
| CN102943886A (en) * | 2012-11-23 | 2013-02-27 | 浙江理工大学 | Gate valve with function of reducing cavitation damage of valve plate |
| CN103603961A (en) * | 2013-11-26 | 2014-02-26 | 浙江万龙机械有限公司 | Ceramic valve |
| CN105673875A (en) * | 2016-03-29 | 2016-06-15 | 苏州纽威阀门股份有限公司 | Unfurled double-valve plate gate valve |
| CN109210220A (en) * | 2018-10-15 | 2019-01-15 | 兰州高压阀门有限公司 | One seed nucleus second level tight seal high-temperature medium group combined floodgate plate |
| CN111043381A (en) * | 2018-10-12 | 2020-04-21 | 中核苏阀科技实业股份有限公司 | Nuclear two-stage DC electric parallel seat gate valve |
| CN111043334A (en) * | 2018-10-12 | 2020-04-21 | 中核苏阀科技实业股份有限公司 | Nuclear safety first-stage pneumatic stop valve |
-
2009
- 2009-05-25 CN CN2009201575265U patent/CN201487266U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454804A (en) * | 2010-10-21 | 2012-05-16 | 江苏省鑫通阀门制造有限公司 | Double-shutter gas gate valve |
| CN102207223A (en) * | 2011-05-30 | 2011-10-05 | 上海阀门厂有限公司 | Magnetic transmission electric gate valve |
| CN102207223B (en) * | 2011-05-30 | 2012-07-25 | 上海阀门厂有限公司 | Magnetic transmission electric gate valve |
| CN102943886A (en) * | 2012-11-23 | 2013-02-27 | 浙江理工大学 | Gate valve with function of reducing cavitation damage of valve plate |
| CN102943886B (en) * | 2012-11-23 | 2013-12-25 | 浙江理工大学 | Gate valve with function of reducing cavitation damage of valve plate |
| CN103603961A (en) * | 2013-11-26 | 2014-02-26 | 浙江万龙机械有限公司 | Ceramic valve |
| CN103603961B (en) * | 2013-11-26 | 2016-06-08 | 浙江万龙机械有限公司 | A kind of ceramic gate valve |
| CN105673875A (en) * | 2016-03-29 | 2016-06-15 | 苏州纽威阀门股份有限公司 | Unfurled double-valve plate gate valve |
| CN111043381A (en) * | 2018-10-12 | 2020-04-21 | 中核苏阀科技实业股份有限公司 | Nuclear two-stage DC electric parallel seat gate valve |
| CN111043334A (en) * | 2018-10-12 | 2020-04-21 | 中核苏阀科技实业股份有限公司 | Nuclear safety first-stage pneumatic stop valve |
| CN109210220A (en) * | 2018-10-15 | 2019-01-15 | 兰州高压阀门有限公司 | One seed nucleus second level tight seal high-temperature medium group combined floodgate plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |