CN209354681U - A kind of novel double-gate plate gate valve - Google Patents
A kind of novel double-gate plate gate valve Download PDFInfo
- Publication number
- CN209354681U CN209354681U CN201821928599.5U CN201821928599U CN209354681U CN 209354681 U CN209354681 U CN 209354681U CN 201821928599 U CN201821928599 U CN 201821928599U CN 209354681 U CN209354681 U CN 209354681U
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- China
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- flashboard
- valve
- plunger tip
- valve body
- valve rod
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Abstract
The utility model discloses a kind of novel double-gate plate gate valves, including valve body, valve seat, left flashboard, left plunger tip, right plunger tip, right flashboard and valve rod, the pumping slot directly on valve body, left flashboard and right flashboard directly block valve rod and are mounted on the inside of valve body slot, this structure is of less demanding to the centering of left flashboard and right flashboard and valve rod, assembly is simple, it is easy to maintenance, and it is of less demanding to the angle of assembling of left flashboard and right flashboard, with angle self-regulating function, the sealing surface weld deposit hard alloy of left flashboard and right flashboard, layer is no less than 4mm after processing, structure is more stable.
Description
Technical field
The utility model relates to double-flashboard gate valve production technical field, specially a kind of novel double-gate plate gate valve.
Background technique
It is proposed with the development of industry with new energy programme, improves turbine parameters, increase the service efficiency of the energy
It is extremely urgent, and the raising of turbine parameters proposes more harsh requirement to valve, the power station valve of high temperature and pressure was in recent years
It quickly growing, double-flashboard gate valve has flow resistance small, and easy to process, structure is simple, and it is applied widely, sealing surface machining accuracy is wanted
It seeks the feature low compared with single disc and is largely applied on power station valve.
Its structure & working mechanism of parallel double-flashboard gate valve is consistent with gate valve, and opening and closing body (valve plate) is driven by valve rod and valve
Seat sealing surface makees elevating movement, can connect or be truncated the channel of fluid, when valve portion is opened, generates whirlpool at the flashboard back side
Stream, the erosion and vibration of Yi Yinqi flashboard, also sealing surface of seat easy to damage, repairs difficulty, is commonly available to not need often to open
It closes, and holding flashboard standard-sized sheet or fully closed operating condition, the working principle of parallel double-flashboard valve are provided by cylinder or handwheel
Outer power, valve rod drive valve plate to move up and down the opening and closing for realizing valve, rely on during valve opening and closing and bullet is arranged between double disc
The pretightning force of spring is that valve plate and valve seat are in close contact, and is realized and is sealed by medium pressure itself, existing double-flashboard gate valve part
More, structure is complicated, and double disc action effect is not good enough, and structure is relatively stiff, requires the centering of left flashboard and right flashboard relatively high.
Utility model content
The purpose of this utility model is to provide a kind of novel double-gate plate gate valves, have structure and simply assemble easy, maintenance
Convenient advantage, can solve the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions: a kind of novel double-gate plate gate valve, including valve
Body, valve seat, left flashboard, Zuo Dingxin, right plunger tip, right flashboard and valve rod, valve seat are mounted on valve body, and valve seat is equipped with two groups, valve body
Inside be equipped with groove, left flashboard is installed in the inside of groove and right flashboard, left flashboard are connect with left plunger tip, left plunger tip and right plunger tip
For sphere-contact, right plunger tip is located at the inside of right flashboard, and left flashboard and the intermediate of right flashboard install valve rod.
Preferably, the surface of the left flashboard is equipped with ring packing structure, and the diameter of ring structure is 246mm, left flashboard
Integral thickness be 96.5mm, valve rod mounting groove is offered at the top of left flashboard, the right side opening of left flashboard is equipped with the installation of left plunger tip
Hole, the structure size of right flashboard is consistent with the structure size of left flashboard, and right plunger tip mounting hole is offered on the left of right flashboard.
Preferably, the left plunger tip is set as convex spherical structure, and right plunger tip is set as concave spherical surface structure, left plunger tip and You Ding
Core matching, left plunger tip and right plunger tip are all made of 2Cr13/616 material and are made.
Preferably, the sealing surface weld deposit hard alloy of the left flashboard and right flashboard, layer is no less than 4mm after processing, left
Flashboard and right flashboard are made of 20/12Cr1MoV material.
Preferably, the valve body is made of cast steel material, and the surface typecasting of valve body uses No. 30 fonts, and valve body is not
Machined surface has done grinding process.
Preferably, the valve rod is made of 38CrMoAlA material, the bottom size of valve rod and the size of valve rod mounting groove
Matching.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model double-flashboard gate valve is compared with original structure, the pumping slot directly on valve body, and left flashboard and right flashboard are directly clamped among
The inside of valve rod mounting groove, this structure be not strong to the centering requirement of left flashboard and right flashboard and valve rod, and assembly is simple, maintenance side
Just, and it is of less demanding to the angle of assembling of left flashboard and right flashboard, there is angle self-regulating function, left flashboard and right flashboard
Sealing surface weld deposit hard alloy, layer is no less than 4mm after processing, and structure is more stable.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the left flashboard schematic elevation view of the utility model；
Fig. 3 is the left flashboard schematic side view of the utility model；
Fig. 4 is the right flashboard schematic side view of the utility model；
Fig. 5 is the left flashboard schematic top plan view of the utility model；
Fig. 6 is the left plunger tip structural schematic diagram of the utility model；
Fig. 7 is the right plunger tip structural schematic diagram of the utility model；
Fig. 8 is the valve body structure schematic elevation view of the utility model；
Fig. 9 is the valve body structure schematic side view of the utility model；
Figure 10 is the valve body structure schematic top plan view of the utility model.
In figure: 1, valve body；11, groove；2, valve seat；3, left flashboard；31, ring structure；32, valve rod mounting groove；33, Zuo Ding
Core mounting hole；34, right plunger tip mounting groove；4, Zuo Dingxin；5, right plunger tip；6, right flashboard；7, valve rod.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-10, a kind of novel double-gate plate gate valve, including valve body 1, valve seat 2, left flashboard 3, Zuo Dingxin 4, You Ding
Core 5, right flashboard 6 and valve rod 7, valve seat 2 are mounted on valve body 1, and valve seat 2 is equipped with two groups, and the inside of valve body 1 is equipped with groove 11, recessed
Left flashboard 3 is installed in the inside of slot 11 and right flashboard 6, left flashboard 3 are connect with left plunger tip 4, and Zuo Dingxin 4 connects with right plunger tip 5 for spherical surface
Touching, right plunger tip 5 are located at the inside of right flashboard 6, and left flashboard 3 and the intermediate of right flashboard 6 install valve rod 7, and the surface of left flashboard 3 is equipped with
Annular sealing surface structure 31, the diameter of annular sealing surface structure 31 are 246mm, and the integral thickness of left flashboard 3 is 96.5mm, left lock
The top of plate 3 offers valve rod mounting groove 32, and the right side opening of left flashboard 3 is equipped with left plunger tip mounting hole 3, the structure ruler of right flashboard 6
Very little consistent with the structure size of left flashboard 3, the left side of right flashboard 6 opens up as right plunger tip mounting hole 34, and Zuo Dingxin 4 is set as convex ball
Face structure, right plunger tip 5 are set as concave spherical surface structure, and Zuo Dingxin 4 and right plunger tip 5 match, and Zuo Dingxin 4 and right plunger tip 5 are all made of
2Cr13 material is made, and the sealing surface weld deposit hard alloy of left flashboard 3 and right flashboard 6, layer is no less than 4mm, sealing surface after processing
Dye penetrant inspection is carried out, the injurous defects such as flawless, stomata are answered on surface, and left flashboard 3 and right flashboard 6 use 20/12Cr1MoV material
It is made, valve body 1 is made of cast steel material, and the surface typecasting of valve body 1 uses No. 30 fonts, and the not machined surface of valve body 1 has been done
Grinding process, valve rod 7 are made of 38CrMoAlA material, and the bottom size of valve rod 7 is matched with the size of valve rod mounting groove 32.
In summary: existing double-flashboard gate valve part is more, and structure is complicated, and double disc action effect is not good enough, and structure compares
Rigidity, relatively high to the centering requirement of left flashboard 3 and right flashboard 6, the utility model double-flashboard gate valve is compared with original structure, directly in valve
Pumping slot on body 1, left flashboard 3 and right flashboard 6 are directly clamped among the inside of valve rod mounting groove 32, this structure is to left flashboard 3 and You Zha
The centering requirement of plate 6 and valve rod 7 is not strong, and assembly is simple, easy to maintenance, and to the requirement of the angle of assembling of left flashboard 3 and right flashboard 6
It is not high, there is angle self-regulating function, the sealing surface weld deposit hard alloy of left flashboard 3 and right flashboard 6, layer is many after processing
In 4mm, structure is more stable.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of novel double-gate plate gate valve, including valve body (1), valve seat (2), left flashboard (3), Zuo Dingxin (4), right plunger tip (5), the right side
Flashboard (6) and valve rod (7), it is characterised in that: the valve seat (2) is mounted on valve body (1), and valve seat (2) is equipped with two groups, valve body
(1) inside is equipped with groove (11), and left flashboard (3) and right flashboard (6), left flashboard (3) and left top are installed in the inside of groove (11)
Core (4) connection, Zuo Dingxin (4) and right plunger tip (5) are sphere-contact, and right plunger tip (5) is located at the inside of right flashboard (6), left flashboard
(3) and the intermediate of right flashboard (6) installs valve rod (7).
2. a kind of novel double-gate plate gate valve according to claim 1, it is characterised in that: the surface of the left flashboard (3) is set
Have annular sealing surface structure (31), the diameter of annular sealing surface structure (31) is 246mm, and the integral thickness of left flashboard (3) is
96.5mm is offered valve rod mounting groove (32) at the top of left flashboard (3), and the right side opening of left flashboard (3) is equipped with left plunger tip mounting hole
(33), the structure size of right flashboard (6) is consistent with the structure size of left flashboard (3), offers right plunger tip on the left of right flashboard (6)
Mounting hole (34).
3. a kind of novel double-gate plate gate valve according to claim 1, it is characterised in that: the left plunger tip (4) is set as convex
Spherical structure, right plunger tip (5) are set as concave spherical surface structure, Zuo Dingxin (4) and right plunger tip (5) matching, Zuo Dingxin (4) and right plunger tip
(5) it is all made of 2Cr13 or more or 616 materials is made.
4. a kind of novel double-gate plate gate valve according to claim 1, it is characterised in that: the left flashboard (3) and right flashboard
(6) sealing surface weld deposit hard alloy, layer is no less than 4mm after processing, and left flashboard (3) and right flashboard (6) use 20/
12Cr1MoV material is made.
5. a kind of novel double-gate plate gate valve according to claim 1, it is characterised in that: the valve body (1) uses cast steel material
Material is made, and the surface typecasting of valve body (1) uses No. 30 fonts, and the not machined surface of valve body (1) has done grinding process.
6. a kind of novel double-gate plate gate valve according to claim 1, it is characterised in that: the valve rod (7) uses
38CrMoAlA material is made, and the bottom size of valve rod (7) is matched with the size of valve rod mounting groove (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821928599.5U CN209354681U (en) | 2018-11-20 | 2018-11-20 | A kind of novel double-gate plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821928599.5U CN209354681U (en) | 2018-11-20 | 2018-11-20 | A kind of novel double-gate plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209354681U true CN209354681U (en) | 2019-09-06 |
Family
ID=67782966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821928599.5U Active CN209354681U (en) | 2018-11-20 | 2018-11-20 | A kind of novel double-gate plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209354681U (en) |
-
2018
- 2018-11-20 CN CN201821928599.5U patent/CN209354681U/en active Active
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| GR01 | Patent grant |