CN203963075U - A kind of complex spring connects Wedge type double gate board gate valve - Google Patents
A kind of complex spring connects Wedge type double gate board gate valve Download PDFInfo
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- CN203963075U CN203963075U CN201420426342.5U CN201420426342U CN203963075U CN 203963075 U CN203963075 U CN 203963075U CN 201420426342 U CN201420426342 U CN 201420426342U CN 203963075 U CN203963075 U CN 203963075U
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- flashboard
- valve
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- wedge type
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- 238000007789 sealing Methods 0.000 claims abstract description 34
- 210000004907 gland Anatomy 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims abstract description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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Abstract
A kind of complex spring connects Wedge type double gate board gate valve, it comprises valve body, flashboard, valve rod, bearing gland, fastening piece etc., valve rod upper end coordinates with stuffing box packing in valve gap top seal letter and stretches out Gland, coordinate with the T-shaped nut on support, by screw thread, be in transmission connection, Zai Yu actuator links together, flashboard is double-flashboard, its left side, right flashboard is obliquely installed, width top is greater than bottom between the two, in the middle of double-flashboard, being provided with spring connects, and on a left side, between right flashboard, be provided with the wedge-type cam with wedging action, double-flashboard upper end with overhead gage by a left side, right flashboard is nested together.The utility model adopts spring to connect, and the distance between sealing surface can be regulated automatically, has solved the defect of conventional products non-interchangeability.Due to the adjusting function of spring, the dead phenomenon of wedge that conventional gate valve is often occurred when high temperature reduces, and to temperature variation, can automatically be regulated by spring, especially practical for the power station valve under hot environment.
Description
Technical field
The utility model relates to a kind of switch valve of flow medium, and especially a kind of spring connects wedge-type self-pressure double-flashboard gate valve.
Background technique
Along with the fast development of Chinese industrial in recent years, in fluid-transporting tubing, the application of valve is more and more extensive, also more and more comes into one's own; And in numerous valve control systems, gate valve usage quantity in numerous valves comes out at the top, it is more and more important that this just makes that the technology innovation of gate valve becomes.And the gate valve using in modern pipeline fluid course of conveying is fixed into nonadjustable integral type while being the assembling of integrated type or left and right flashboard due to flashboard, when flashboard sealing surface is contacted with valve body sealing surface, it is rigid contact, cause sealing surface to be easy to wearing and tearing, during keying, between valve seat and sealing surface, there is very large frictional force, cause sealing surface is easy to wear, have a strong impact on Sealing usability and life-span; The second, traditional gate valve in use, is all generally that the sealing surface of downside is want first contacting valve seat in closing process, uses that to cause the flashboard sealing pair wearing and tearing of downside to be want upside bigger than normal for a long time, thereby causes upside to shut, and downside also exists leakage; Three, traditional integral type flashboard sealing surface substantive requirements of form are very tight, generally on producing, can only manufacture, cause product non-interchangeability in maintenance process, especially in large-scale unit is used, while breaking down, because it does not have interchangeability, seriously extended engineering time; Four, to traditional Wedge gate valve, no matter be manually-operated gate or electric valve, generally all do not consider switch indicating device, also switching position point cannot be accurately set, user's operation can only be carried out with feel by rule of thumb with debugging, be not that tension was exactly pine, tension can cause killing or abrading sealing surface, crosses Song Zeyi and causes interior leakage.Be difficult to accurately levelling position, for failsafe valve is buried congenital hidden danger.
Summary of the invention
The utility model provides a kind of complex spring to connect Wedge type double gate board gate valve, employing spring connects, make the distance between sealing surface there is automatic regulation function, solved the defect of conventional products non-interchangeability, the same adjusting function due to spring, the dead phenomenon of wedge that conventional gate valve is often occurred when high temperature reduces, and to temperature variation, can automatically be regulated by spring, and this is especially practical for the power station valve under hot environment.
A kind of complex spring connects Wedge type double gate board gate valve, it comprises valve body, flashboard, valve rod, valve gap, filler, Gland, support, the T-shaped nut of valve rod, bearing, the fastening piece of bearing gland and all connections forms, valve rod upper end coordinates with stuffing box packing in valve gap top seal letter and stretches out Gland, coordinate with the T-shaped nut on support, by screw thread, be in transmission connection, Zai Yu actuator links together, T-shaped nut cylindrical and thrust-bearing close-fitting, described flashboard is double-flashboard, it comprises left flashboard and right flashboard, left, right flashboard is obliquely installed, width top is greater than bottom between the two, in the middle of double-flashboard, being provided with spring connects, and on a left side, between right flashboard, be provided with the wedge-type cam with wedging action, double-flashboard upper end with overhead gage by a left side, right flashboard is nested together, described valve rod bottom is hemisphere, it is driveed between the flashboard of left and right.
Above-mentioned spring comprises lower springs and middle part spring, between spring and flashboard, welds.
Between above-mentioned valve body and valve gap, be provided with middle road pad.
On above-mentioned valve body inclination sealing surface, heap is welded with hard alloy layer, and on left and right flashboard two inclined-planes, correspondence is also welded with hard alloy layer.
Above-mentioned actuator, for manually or for electronic or surge or Composite Transmission, makes the rotation motion of valve rod screw mandrel by its transferring power, drives flashboard to move up and down to guarantee the opening and closing action of valve.
The support in above-mentioned bearing outside is provided with oil hole, is provided with lubricating cup in hole.
The utility model has following beneficial effect:
1, the utility model adopts the double-flashboard of spring Connecting format, conventional valves can only be carried out by rule of thumb opening and closing in use and debug process, indicating positions and extreme limit of travel position that the double-flashboard gate valve of this spring Connecting format has valve opening and closes, the too tight or too loose phenomenon of switch of effectively having avoided conventional valves often to occur, both protected sealing surface because of tension, not damage, and also prevented from crossing pine and the interior leakage phenomenon of appearance; Also reduce many artificial faults, greatly reduced the harsh requirement to user, facilitated execute-in-place, reduced installation and the operation maintenance requirement of product.
2, traditional double-flashboard Wedge gate valve is comprised of more than ten parts such as upper and lower supporting plate, left and right flashboard, flashboard frame, the top heart, loosely organized, and root tool withdrawal groove in service or the fracture of pinhole place, flashboard comes off or the fault such as flashboard frame fracture often occurs; This novel employing directly connects spring the form of left and right flashboard, and traditional component part quantity is reduced to half, and the probability that above fault is occurred reduces half.
3, traditional double-flashboard is seen in opening and closing process, and because flashboard is that fix or all-in-one-piece, so high to the requirement of both sides sealing face angle, general enterprises can only be joined work, product non-interchangeability; This novel employing spring connects, and makes the distance between sealing surface have automatic regulation function, has solved the defect of conventional products non-interchangeability.Due to the adjusting function of spring, the dead phenomenon of wedge that conventional gate valve is often occurred when high temperature reduces, and to temperature variation, can automatically be regulated by spring equally, and this is especially practical for the power station valve under hot environment.
4, the utility model, owing to having removed half complicated constituent elements such as flashboard frame of traditional double flashboard constituent element, has reduced assembling difficulty, has also reduced installation time, has improved efficiency of assembling, thereby has reduced the manufacture cost of valve.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, mode of execution of the present utility model is described further.
Referring to Fig. 1, a kind of complex spring connects Wedge type double gate board gate valve, and it comprises valve body 24, flashboard, valve rod 5, valve gap 25, filler 10, Gland 17, support 18, the T-shaped nut 26 of valve rod, bearing 28, the fastening piece 6-8 of bearing gland 29 and all connections, 11-16, 19-20 forms, the concrete structure of each fastener assembly and assembling mode are prior art, valve rod upper end coordinates with stuffing box packing in valve gap top seal letter and stretches out Gland, coordinate with the T-shaped nut on support, by screw thread, be in transmission connection, Zai Yu actuator 21 links together, T-shaped nut cylindrical and thrust-bearing close-fitting, it is characterized in that: described flashboard is double-flashboard, it comprises left flashboard 2 and right flashboard 3, a left side, right flashboard is obliquely installed, and width top is greater than bottom between the two, is provided with spring 1 in the middle of double-flashboard, 4 connect, and on a left side, between right flashboard, be provided with the wedge-type cam 22 with wedging action, double-flashboard upper end uses overhead gage 23 by a left side, right flashboard is nested together, and described valve rod bottom is hemisphere, and it is driveed between the flashboard of left and right.
Preferably, described spring comprises lower springs 1 and middle part spring 4, between spring and flashboard, welds.Between described valve body and valve gap, be provided with middle road pad 9.On valve body inclination sealing surface, heap is welded with hard alloy layer, and on left and right flashboard two inclined-planes, correspondence is also welded with hard alloy layer.Described actuator, for manually or for electronic or surge or Composite Transmission, makes the rotation motion of valve rod screw mandrel by its transferring power, drives flashboard to move up and down to guarantee the opening and closing action of valve.The support in described bearing outside is provided with oil hole, is provided with lubricating cup 27 in hole.
The open-shut device of gate valve is flashboard, and moving direction and the flow direction of flashboard are perpendicular, and gate valve can only be made standard-sized sheet and complete shut-down, can not make adjustments and throttling.Flashboard has two sealing surfaces, two sealing surfaces of the most frequently used pattern gate valve form wedge shape, key groove is different with valve parameter, be generally 5 °, on lifting bar, there is trapezoidal thread, for example, by the nut of valve tip actuator (handwheel) and the guide groove on valve body, to rotatablely move and become straight line motion, namely operation torque be become to operation thrust.During Open valve, when flashboard lifting height equals 1:1 times of valve latus rectum, the passage of fluid is completely unimpeded.
The utility model has switch open-shut device, valve body and actuator to combine.The modes such as actuator can provide as requested manually, surges, pneumatic, electronic or interlock, valve body can require provide many clocks types of material according to corrosivity; Core double-flashboard is linked together by a plurality of springs, cam with wedging action is clipped in the middle of double-flashboard, the valve rod head that connects flashboard is made the circular arc pattern that can form balance tension with flashboard, in closing process, fine utilize valve rod head from wedging action, the pulling force that overcomes spring together with cam makes sealing reach optimum efficiency; In the process of opening, first valve rod rises, and double-linked cam is together to the pressure release of double-flashboard sealing surface, and spring natural shrinking, makes flashboard sealing surface separated with valve body sealing surface, then drives double-flashboard to rise by valve rod, until enable possition.In whole process, due to the spring ability that automatically resets, the flashboard downside having occurred while just having avoided each throttle down first contacts the situation of valve body sealing surface, has also just extended the wearing-in period of sealing surface largely, and once extended the working life of this valve.
This spring connects Wedge type double gate board gate valve, it mainly comprises main valve, main valve is provided with actuator's part, described main valve comprises valve body, and valve body top is provided with bonnet, and valve gap is connected with stud nut with valve body, valve body middle part is provided with double-flashboard, in the middle of double-flashboard, be provided with spring and connect, and with the wedge-type cam with wedging action, double-flashboard upper end with overhead gage by left and light brake sleeve-board together.Valve gap top is provided with sealing, is provided with Packing seat and flexible graphite packing in packing cavity, is pressed above by Gland by the fixing envelope of swing bolt.Valve gap is connected with stud nut with support, and support upper end and valve rod contacting point are provided with Stem Mut and thrust-bearing, and side is provided with oil hole, with lubricating cup, block, and be topmost actuator, can join as required different actuators.
This spring connects Wedge type double gate board gate valve, it is provided with the switching position and the stroke restricting means of this valve on support, the switching position of valve can accurately be located, with respect to the gate valve switch in past experience or know that actuator cannot rise or decline and have great advantage as limit position later, thereby can not cause valve tension or excessively loose, just there will not be valve to kill or abrade the problems such as sealing surface or interior leakage.
After valve opening, flashboard raises up and departs from after sealing surface, and spring furthers left and right flashboard, and cam is got back to the state of not stressing, and valve rod head arc surface recovers the state that do not stress, relative distance between double-flashboard is less than the relative position between the sealing surface of valve body left and right, when valve need to be closed, actuator provides moment that valve rod is promoted downwards, valve rod drives flashboard assembly to move down, because being subject to spring tension, flashboard is close together, more easily wedge between the sealing surface of left and right, after flashboard bottom arrives sealing station, flashboard no longer moves down, valve rod continues to move down until valve rod head arc surface touches the inwall of left and right flashboard, just push left and right flashboard, the pulling force that overcomes spring forces left and right flashboard relatively to open, cam also gravitate glides, accelerating flashboard opens, make together with flashboard fits tightly more with valve body sealing surface, the leakage class that has more stable and sealing and Geng Gao compared with common double flashboard, more can well overcome the uneven wild effect causing in left and right.
Claims (6)
1. complex spring connects a Wedge type double gate board gate valve, and it comprises valve body (24), flashboard, valve rod (5), valve gap (25), filler (10), Gland (17), support (18), the T-shaped nut of valve rod (26), bearing (28), fastening piece (the 6-8 of bearing gland (29) and all connections, 11-16, 19-20) form, valve rod upper end coordinates with stuffing box packing in valve gap top seal letter and stretches out Gland, coordinate with the T-shaped nut on support, by screw thread, be in transmission connection, Zai Yu actuator (21) links together, and T-shaped nut cylindrical and thrust-bearing close-fitting, is characterized in that: described flashboard is double-flashboard, it comprises left flashboard (2) and right flashboard (3), a left side, right flashboard is obliquely installed, and width top is greater than bottom between the two, is provided with spring (1 in the middle of double-flashboard, 4) connect, and on a left side, between right flashboard, be provided with the wedge-type cam (22) with wedging action, double-flashboard for upper end overhead gage (23) by a left side, right flashboard is nested together, and described valve rod bottom is hemisphere, and it is clipped between the flashboard of left and right.
2. complex spring according to claim 1 connects Wedge type double gate board gate valve, it is characterized in that: described spring comprises lower springs (1) and middle part spring (4), between spring and flashboard, welds.
3. complex spring according to claim 1 connects Wedge type double gate board gate valve, it is characterized in that: between described valve body and valve gap, be provided with middle road pad (9).
4. according to the complex spring described in claim 1 or 3, connect Wedge type double gate board gate valve, it is characterized in that: on valve body inclination sealing surface, heap is welded with hard alloy layer, and on left and right flashboard two inclined-planes, correspondence is also welded with hard alloy layer.
5. complex spring according to claim 1 connects Wedge type double gate board gate valve, it is characterized in that: described actuator is for manually or for electronic or surge or Composite Transmission, by its transferring power, make the rotation motion of valve rod screw mandrel, drive flashboard moves up and down and guarantees the opening and closing action of valve.
6. complex spring according to claim 1 connects Wedge type double gate board gate valve, it is characterized in that: the support in described bearing outside is provided with oil hole, is provided with lubricating cup (27) in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426342.5U CN203963075U (en) | 2014-07-31 | 2014-07-31 | A kind of complex spring connects Wedge type double gate board gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426342.5U CN203963075U (en) | 2014-07-31 | 2014-07-31 | A kind of complex spring connects Wedge type double gate board gate valve |
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| Publication Number | Publication Date |
|---|---|
| CN203963075U true CN203963075U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420426342.5U Expired - Lifetime CN203963075U (en) | 2014-07-31 | 2014-07-31 | A kind of complex spring connects Wedge type double gate board gate valve |
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| CN (1) | CN203963075U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864108A (en) * | 2015-06-11 | 2015-08-26 | 江苏金晟元特种阀门股份有限公司 | Electric abrasion-resisting gate valve |
| CN105422884A (en) * | 2016-01-06 | 2016-03-23 | 江苏安普阀门机械有限公司 | High ultra-vacuum special electric gate valve |
| CN105443790A (en) * | 2015-12-25 | 2016-03-30 | 大连大高阀门股份有限公司 | Adjustable double wedge disc |
-
2014
- 2014-07-31 CN CN201420426342.5U patent/CN203963075U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864108A (en) * | 2015-06-11 | 2015-08-26 | 江苏金晟元特种阀门股份有限公司 | Electric abrasion-resisting gate valve |
| CN105443790A (en) * | 2015-12-25 | 2016-03-30 | 大连大高阀门股份有限公司 | Adjustable double wedge disc |
| CN105443790B (en) * | 2015-12-25 | 2018-05-22 | 大连大高阀门股份有限公司 | Adjustable wedge-type double disc |
| CN105422884A (en) * | 2016-01-06 | 2016-03-23 | 江苏安普阀门机械有限公司 | High ultra-vacuum special electric gate valve |
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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: 20141126 |