CN217502624U - Zero-leakage low-torque stainless steel turbine flange butterfly valve - Google Patents
Zero-leakage low-torque stainless steel turbine flange butterfly valve Download PDFInfo
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- CN217502624U CN217502624U CN202221621511.1U CN202221621511U CN217502624U CN 217502624 U CN217502624 U CN 217502624U CN 202221621511 U CN202221621511 U CN 202221621511U CN 217502624 U CN217502624 U CN 217502624U
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Abstract
The utility model relates to a turbine flange butterfly valve technical field, concretely relates to zero leaks low moment of torsion stainless steel turbine flange butterfly valve, including valve body, hand wheel, worm-gear case, pivot and valve plate, the top of valve body is equipped with the worm-gear case, the hand wheel links to each other with the horizontal input axle head of worm-gear case, the valve body internal rotation is equipped with the valve plate, fixed the grafting has the pivot on the valve plate, the upper end of pivot is passed the valve body and is linked to each other with the vertical output axle head of worm-gear case, be equipped with the metal seal liner on the inner wall of valve body, two seal grooves have been seted up on the outer periphery wall of valve plate symmetrically, the embedded NBR butadiene-acrylonitrile rubber sealing washer that is equipped with of seal groove; meanwhile, the surface of the valve plate is sequentially plated with the corrosion-resistant coating and the wear-resistant coating from inside to outside, and the effect of secondary double sealing between the valve plate and the valve body can be achieved through the metal sealing gasket and the embedded NBR nitrile butadiene rubber sealing ring, so that the sealing effect between the valve plate and the valve body is improved.
Description
Technical Field
The utility model relates to a turbine flange butterfly valve technical field, concretely relates to zero leaks low moment of torsion stainless steel turbine flange butterfly valve.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing member (a valve plate or a butterfly plate) which is a disc and rotates around a valve shaft to achieve opening and closing.
However, the turbine flange butterfly valve in the existing market has the following defects in the using process: 1. usually, a sealing gasket is arranged on a valve body or a valve plate, so that double sealing cannot be achieved, and the sealing effect is poor; 2. the valve plate made of stainless steel has poor wear resistance.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a zero-leakage low-torque stainless steel turbine flange butterfly valve, which can achieve the effect of single sealing when the metal sealing gasket is in rotary butt joint with a valve plate through the arrangement; by utilizing the two sealing grooves and the embedded NBR (nitrile butadiene rubber) sealing ring, the effect of secondary double sealing between the valve plate and the valve body can be achieved, and the sealing effect between the valve plate and the valve body is improved. And through the corrosion-resistant coating and the wear-resistant coating, the corrosion resistance and the wear-resistant service life of the valve plate can be prolonged.
The utility model discloses a following technical scheme realizes:
a zero-leakage low-torque stainless steel turbine flange butterfly valve comprises a valve body, a hand wheel, a worm gear case, a rotating shaft and a valve plate, wherein the worm gear case is arranged at the top of the valve body, the hand wheel is connected with the horizontal input shaft end of the worm gear case, the valve plate is rotationally arranged in the valve body, the rotating shaft is fixedly inserted in the valve plate, the upper end of the rotating shaft penetrates through the valve body and is connected with the vertical output shaft end of the worm gear case, a metal sealing gasket is arranged on the inner wall of the valve body, two sealing grooves are symmetrically formed in the outer circumferential wall of the valve plate, and an NBR (nitrile-butadiene rubber) sealing ring is embedded in each sealing groove; and simultaneously, the surface of the valve plate is sequentially plated with a corrosion-resistant coating and a wear-resistant coating from inside to outside.
Preferably, the rotating shaft and the valve body are rotatably mounted through shaft sleeves arranged on the upper side and the lower side respectively, and sealing fillers are arranged at positions close to the shaft sleeves on the upper side and the lower side.
Preferably, the metal sealing gasket further comprises a shaft hole vertically formed therein, and the shaft hole is used for the rotating shaft to pass through.
Preferably, the cross section of the sealing groove is in an arc groove structure.
Preferably, the corrosion-resistant coating adopts a chromium-nickel-manganese alloy coating with the thickness of 0.5-2 cm.
Preferably, the wear-resistant coating adopts a silicon carbide coating with the thickness of 0.5-1 cm.
Preferably, the valve body and the valve plate are made of 304 stainless steel.
The utility model has the advantages that:
when the metal sealing gasket is in rotary butt joint with the valve plate, the single-weight sealing effect can be achieved; by utilizing the two sealing grooves and the embedded NBR (nitrile butadiene rubber) sealing ring, the effect of secondary double sealing between the valve plate and the valve body can be achieved, and the sealing effect between the valve plate and the valve body is improved. The corrosion-resistant coating and the wear-resistant coating are arranged, so that the corrosion resistance and the wear resistance service life of the valve plate can be prolonged;
and the utility model has the advantages of reasonable design, the novelty, convenient to use has stronger practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the structure of the present invention;
FIG. 2 is a structural sectional view of the present invention;
fig. 3 is a structural section view of the valve plate of the present invention.
In the figure: 1-valve body, 2-handwheel, 3-worm gear case, 4-rotating shaft, 5-valve plate, 6-metal sealing gasket, 7-sealing groove and 8-shaft sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1 to 3: the utility model provides a zero-leakage low-torque stainless steel turbine flange butterfly valve, including valve body 1, hand wheel 2, worm-gear case 3, shaft 4 and valve plate 5, the top of valve body 1 is equipped with worm-gear case 3, hand wheel 2 links to each other with the horizontal input shaft end of worm-gear case 3, the valve body 1 internal rotation is equipped with valve plate 5, fixed grafting is equipped with shaft 4 on valve plate 5, the upper end of shaft 4 passes valve body 1 and links to each other with the vertical output shaft end of worm-gear case 3, be equipped with metal seal liner 6 on the inner wall of valve body 1, two seal grooves 7 have been seted up symmetrically on the outer circumferential wall of valve plate 5, the embedded NBR nitrile rubber sealing washer that is equipped with of seal groove 7; meanwhile, the surface of the valve plate 5 is sequentially plated with a corrosion-resistant coating and a wear-resistant coating from inside to outside. When the turbine flange butterfly valve is used, the hand wheel 2 is manually rotated, and the rotating shaft 4 and the valve plate 5 are driven to rotate under the transmission action of the worm and the worm wheel in the worm gear box 3, so that the purpose of opening or closing between the valve plate 5 and the valve body 1 is achieved.
When the metal sealing gasket 6 is in rotary contact with the valve plate 5, the effect of single sealing can be achieved; by utilizing the two sealing grooves 7 and the embedded NBR (nitrile butadiene rubber) sealing ring, the effect of secondary double sealing between the valve plate 5 and the valve body 1 can be achieved, and the sealing effect between the valve plate 5 and the valve body 1 is improved. And through the corrosion-resistant coating and the wear-resistant coating, the corrosion resistance and the wear resistance service life of the valve plate 5 can be prolonged.
Specifically, the installation is rotated mutually through the axle sleeve 8 that upper and lower both sides set up respectively between pivot 4 and the valve body 1, and stability when improving the installation of pivot 4 all is equipped with sealing filler near 8 departments of upper and lower both sides axle sleeve simultaneously, strengthens the 1 sealing performance of valve body when pivot 4 installs.
Specifically, the metal sealing gasket 6 further comprises a shaft hole vertically formed, and the shaft hole is used for the rotating shaft 4 to penetrate through.
Specifically, the cross section of the sealing groove 7 is in an arc-shaped groove structure.
Specifically, the corrosion-resistant coating is a chromium-nickel-manganese alloy coating with the thickness of 0.5-2 cm.
Specifically, the wear-resistant coating adopts a silicon carbide coating with the thickness of 0.5-1 cm.
Specifically, the valve body 1 and the valve plate 5 are made of 304 stainless steel.
When the utility model adopts the design and use of the structure, the metal sealing gasket 6 can achieve the single sealing effect when the metal sealing gasket is in rotary butt joint with the valve plate 5; utilize two seal grooves 7 of above-mentioned setting and the NBR nitrile rubber sealing washer of establishing of inlaying, can reach and carry out double-sealed effect once more between valve plate 5 and the valve body 1, improved the sealed effect between valve plate 5 and the valve body 1. And through the corrosion-resistant coating and the wear-resistant coating, the corrosion resistance and the wear resistance service life of the valve plate 5 can be prolonged.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a zero leaks low moment of torsion stainless steel turbine flange butterfly valve, includes valve body (1), hand wheel (2), worm-gear case (3), pivot (4) and valve plate (5), the top of valve body (1) is equipped with worm-gear case (3), hand wheel (2) with the horizontal input axle head of worm-gear case (3) links to each other, valve body (1) internal rotation is equipped with valve plate (5), fixed the grafting is had on valve plate (5) pivot (4), the upper end of pivot (4) is passed valve body (1) with the vertical output axle head of worm-gear case (3) links to each other its characterized in that: a metal sealing gasket (6) is arranged on the inner wall of the valve body (1), two sealing grooves (7) are symmetrically formed in the outer circumferential wall of the valve plate (5), and an NBR nitrile rubber sealing ring is embedded in each sealing groove (7); meanwhile, the surface of the valve plate (5) is sequentially plated with a corrosion-resistant coating and a wear-resistant coating from inside to outside.
2. A zero-leakage low-torque stainless steel turbine flange butterfly valve as claimed in claim 1, wherein: the rotating shaft (4) and the valve body (1) are rotatably mounted through shaft sleeves (8) arranged on the upper side and the lower side respectively, and sealing fillers are arranged at positions close to the shaft sleeves (8) on the upper side and the lower side.
3. A zero-leakage low-torque stainless steel turbine flange butterfly valve as claimed in claim 1, wherein: the metal sealing gasket (6) further comprises a shaft hole which is vertically formed, and the shaft hole is used for the rotating shaft (4) to penetrate through.
4. A zero-leakage low-torque stainless steel turbine flange butterfly valve as claimed in claim 1, wherein: the cross section of the sealing groove (7) is in an arc-shaped groove structure.
5. The zero-leakage low-torque stainless steel turbine flange butterfly valve of claim 1, wherein: the corrosion-resistant coating is a chromium-nickel-manganese alloy coating with the thickness of 0.5-2 cm.
6. A zero-leakage low-torque stainless steel turbine flange butterfly valve as claimed in claim 1, wherein: the wear-resistant coating adopts a silicon carbide coating with the thickness of 0.5-1 cm.
7. A zero-leakage low-torque stainless steel turbine flange butterfly valve as claimed in claim 1, wherein: the valve body (1) and the valve plate (5) are made of 304 stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221621511.1U CN217502624U (en) | 2022-06-27 | 2022-06-27 | Zero-leakage low-torque stainless steel turbine flange butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221621511.1U CN217502624U (en) | 2022-06-27 | 2022-06-27 | Zero-leakage low-torque stainless steel turbine flange butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217502624U true CN217502624U (en) | 2022-09-27 |
Family
ID=83339614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221621511.1U Active CN217502624U (en) | 2022-06-27 | 2022-06-27 | Zero-leakage low-torque stainless steel turbine flange butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217502624U (en) |
-
2022
- 2022-06-27 CN CN202221621511.1U patent/CN217502624U/en active Active
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