CN213711903U

CN213711903U - Valve dish board that wear resistance is strong

Info

Publication number: CN213711903U
Application number: CN202022217818.2U
Authority: CN
Inventors: 郑祥恩; 许永乐; 蒋乾清
Original assignee: Hebei Rongyi Valve Co ltd
Current assignee: Hebei Rongyi Valve Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-07-16
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to the technical field of valves, and a valve disc plate that wear resistance is strong is disclosed, including the valve rod cover, the fixed orifices has been seted up at valve rod cover middle part, and the valve rod hole has been seted up to the inside of valve rod cover, and the both sides fixedly connected with valve plate main part of valve rod cover, the valve plate main part includes basic unit, high hardness layer, alloy-layer, high entropy alloy-layer and anti-corrosion coating, high hardness layer parcel is in the outside of basic unit, and the alloy-layer parcel is in the outside on high hardness layer, and high entropy alloy-layer parcel is in the outside on alloy-layer, and the anti-corrosion coating spraying is in the outside on high entropy alloy-layer, the periphery fixedly connected with sealing strip of valve. The utility model provides a tiny solid particle in the fluid and dish board produce the friction, lead to dish inboard wall wearing and tearing serious, make the valve body appear revealing the phenomenon, cut short dish board life's problem, provide a valve dish board that wear resistance is strong, reach simple structure, stand wear and tear corrosion-resistant, long service life's purpose.

Description

Valve dish board that wear resistance is strong

Technical Field

The utility model relates to the technical field of valves, specifically be a valve dish board that wear resistance is strong.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve is characterized in that the butterfly valve opening and closing part is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. Butterfly valves are widely used. The variety and number of uses thereof are still continuously expanding and are developing toward high temperature, high pressure, large caliber, high sealing property, long life, excellent regulation property, and one-valve multi-function. The reliability and other performance indexes of the composite material reach higher levels.

Because there are many tiny solid particles like substances such as mud, oil, can be attached to the disk seat, when the butterfly valve was opened, need rotate the dish board, lead to the solid particle and the dish board friction of attaching to on the disk seat, when fluid flows through the butterfly valve, tiny solid particle in the fluid also can produce the friction with the dish board, long this past, the dish inboard wall wearing and tearing are serious, lead to revealing the phenomenon, cause the loss, consequently, need in time to change the dish board, consume the manpower, dish board life is also short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve dish board that wear resistance is strong reaches simple structure, stand wear and tear corrosion-resistant, long service life's purpose.

In order to achieve the above object, the utility model provides a following technical scheme:

the valve disc plate with the strong wear resistance comprises a valve rod sleeve, wherein a fixing hole is formed in the middle of the valve rod sleeve, a valve rod hole is formed in the valve rod sleeve, and two sides of the valve rod sleeve are fixedly connected with a valve plate main body.

The valve plate main body comprises a base layer, a high-hardness layer, an alloy layer, a high-entropy alloy layer and an anti-corrosion layer, wherein the high-hardness layer is wrapped outside the base layer, the alloy layer is wrapped outside the high-hardness layer, the high-entropy alloy layer is wrapped outside the alloy layer, and the anti-corrosion layer is sprayed outside the high-entropy alloy layer.

The periphery of the valve plate main body is fixedly connected with a sealing edge.

Preferably, the cross section of the sealing edge is circular, and the diameter of the sealing edge is larger than the thickness of the valve plate main body.

Preferably, the material of the base layer is nodular cast iron.

Preferably, the high hardness layer is a coating layer.

Preferably, the alloy layer is a vanadium-titanium-chromium alloy.

Preferably, the high-entropy alloy layer is made of high-entropy alloy and is sprayed on the alloy layer.

Preferably, the corrosion protection layer is two to three millimeters of polytetrafluoroethylene.

The utility model provides a valve dish board that wear resistance is strong. The method has the following beneficial effects:

(1) the utility model discloses a set up the fixed orifices on the valve rod cover, through the fixed orifices with dish board fixed mounting on the valve rod, be greater than the sealed limit of valve plate main part thickness through the fixed connection diameter all around in the valve plate main part for rotate the butterfly plate through the valve rod, when making the butterfly valve close, the sealed limit can paste tightly with the valve body, can not produce the gap between messenger's dish board and the valve body, improves the sealing performance of dish board, and the spraying can prevent that the dish board from being corroded by corrosive liquids at the outside polytetrafluoroethylene anticorrosion coating of dish board.

(2) The utility model discloses a spraying high hardness layer on the basic unit of nodular cast iron preparation, alloy-layer and high entropy alloy-layer, through the high hardness layer, alloy-layer and high entropy alloy-layer protect the basic unit, prevent that tiny solid particle in the fluid from causing wearing and tearing to the valve plate main part, lead to sealed not tight, the alloy-layer that vanadium titanium chromium alloy made can guarantee that whole dish board has excellent intensity, with stronger wearability and corrosion resistance, the high hardness layer can improve the wear resistance of whole dish board once more with the high entropy alloy-layer.

Drawings

Fig. 1 is a side view of the present invention;

FIG. 2 is a sectional view of the present invention;

fig. 3 is a structural diagram of the present invention.

In the figure: the valve comprises a valve rod sleeve 1, a fixing hole 2, a valve plate main body 3, a sealing edge 4, a valve rod hole 5, a base layer 6, a high-hardness layer 7, an alloy layer 8, a high-entropy alloy layer 9 and an anti-corrosion layer 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution:

the utility model provides a valve dish board that wear resistance is strong, includes valve rod cover 1, and fixed orifices 2 have been seted up at valve rod cover 1 middle part, and valve rod hole 5 has been seted up to valve rod cover 1's inside, and valve rod cover 1's both sides fixedly connected with valve plate main part 3.

The valve plate main body 3 comprises a base layer 6, a high-hardness layer 7, an alloy layer 8, a high-entropy alloy layer 9 and an anti-corrosion layer 10, the base layer 6 is made of nodular cast iron, the base layer 6 made of the nodular cast iron with higher wear resistance has higher wear resistance, the high-hardness layer 7 wraps the outside of the base layer 6, the high-hardness layer 7 is a coating, the high-hardness layer 7 made of the coating has high-hardness performance, so that the hardness of the disc is enhanced, the disc can bear higher pressure, the wear resistance of the disc is improved, meanwhile, the coating has high oxidation resistance, high melting point, excellent physical and chemical properties such as good chemical corrosion resistance and thermal shock resistance, and the like, even if high-temperature fluid is conveyed, the coating is not easy to melt and fall off, the coating can prevent the disc from being damaged due to corrosion, the alloy layer 8 wraps the outside of the high-hardness layer 7, the alloy layer 8 is made of vanadium-titanium-chromium alloy, the vanadium, the hardness of the alloy layer 8 is very high, the wear resistance of the dish plate is improved, the entropy alloy layer 9 is wrapped outside the alloy layer 8, the high-entropy alloy layer 9 is made of high-entropy alloy and is sprayed on the alloy layer 8, the high-entropy alloy layer 9 made of the high-entropy alloy has higher hardness, the strength of the high-entropy alloy is much better than that of the traditional alloy, the fracture resistance, the tensile strength, the corrosion resistance and the oxidation resistance are all better than those of the traditional alloy, the surface hardness and the wear resistance of the dish plate are further improved by arranging the high-entropy alloy layer 9 on the dish plate, the anti-corrosion layer 10 is sprayed outside the high-entropy alloy layer 9, the anti-corrosion layer 10 is polytetrafluoroethylene with two to three millimeters, the polytetrafluoroethylene is the best solid lubricating material, scraps are not easy to fall in the friction process, the anti-adhesion, the high temperature resistance and the corrosion resistance are good, the anti-corrosion layer 10 sprayed by the polytetrafluoroethylene can prevent the dish plate from being corroded, also has certain lubricating effect, reduces the abrasion of the disc plate and increases the wear resistance of the disc plate

The periphery fixedly connected with seal edge 4 of valve plate main part 3, the cross section of seal edge 4 is circular, and the diameter of seal edge 4 is greater than the thickness of valve plate main part 3.

When the valve plate is used, the valve rod sleeve 1 is sleeved on the valve rod through the valve rod hole 5, the butterfly plate is fixedly installed on the valve rod through the fixing hole 2, the sealing edge 4 with the diameter larger than the thickness of the valve plate main body 3 is fixedly connected to the periphery of the valve plate main body 3, so that the butterfly plate is rotated through the valve rod, when the butterfly valve is closed, the sealing edge 4 can be tightly attached to the valve body, a gap cannot be generated between the butterfly plate and the valve body, the sealing performance of the butterfly plate is improved, the polytetrafluoroethylene anti-corrosion layer 10 sprayed on the outer portion of the butterfly plate can prevent the butterfly plate from being corroded by corrosive liquid, meanwhile, the butterfly plate can be lubricated by fluid, the abrasion of the fluid to the butterfly plate is reduced, the high-hardness layer 7, the alloy layer 8 and the high-entropy alloy layer 9 are sprayed on the base layer 6 made of nodular cast iron, the base layer 6 is protected through the high-hardness layer 7, the alloy layer 8 and the high-entropy, the sealing is not tight, the alloy layer 8 made of the vanadium-titanium-chromium alloy can ensure that the whole disc plate has excellent strength and stronger wear resistance and corrosion resistance, and the high-hardness layer 7 and the high-entropy alloy layer 9 can improve the wear resistance of the whole disc plate again.

To sum up, the utility model discloses a set up the fixed orifices on the valve rod cover, with dish board and valve rod fixed mounting, through the seal edge 4 that the fixed connection diameter is greater than valve plate main part 3 thickness around valve plate main part 3, make through the valve rod rotate the butterfly plate, when making the butterfly valve close, seal edge 4 can be pasted tightly with the valve body, make between dish board and the valve body can not produce the gap, improve the sealing performance of dish board, and the polytetrafluoroethylene anti-corrosion coating 10 of spraying outside the dish board can prevent that the dish board from being corroded by corrosive liquid, simultaneously also can be for fluid lubrication, reduce the wearing and tearing of fluid to the dish board, through spraying high hardness layer 7, alloy-layer 8 and high entropy alloy-layer 9 on the basic unit 6 of nodular cast iron preparation, protect basic unit 6 through high hardness layer 7, alloy-layer 8 and high entropy alloy-layer 9, prevent that tiny solid particle in the fluid from causing the wearing and tearing to valve plate main part 3, the sealing is not tight, the alloy layer 8 made of the vanadium-titanium-chromium alloy can ensure that the whole disc plate has excellent strength and stronger wear resistance and corrosion resistance, and the high-hardness layer 7 and the high-entropy alloy layer 9 can improve the wear resistance of the whole disc plate again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a valve disc that wear resistance is strong, includes valve rod cover (1), its characterized in that: a fixing hole (2) is formed in the middle of the valve rod sleeve (1), a valve rod hole (5) is formed in the valve rod sleeve (1), and two sides of the valve rod sleeve (1) are fixedly connected with a valve plate main body (3);

the valve plate main body (3) comprises a base layer (6), a high-hardness layer (7), an alloy layer (8), a high-entropy alloy layer (9) and an anti-corrosion layer (10), wherein the high-hardness layer (7) is wrapped outside the base layer (6), the alloy layer (8) is wrapped outside the high-hardness layer (7), the high-entropy alloy layer (9) is wrapped outside the alloy layer (8), and the anti-corrosion layer (10) is sprayed outside the high-entropy alloy layer (9);

the periphery of the valve plate main body (3) is fixedly connected with a sealing edge (4).

2. A valve disc plate with high wear resistance as claimed in claim 1, wherein: the cross section of the sealing edge (4) is circular, and the diameter of the sealing edge (4) is larger than the thickness of the valve plate main body (3).

3. A valve disc plate with high wear resistance as claimed in claim 1, wherein: the base layer (6) is made of nodular cast iron.

4. A valve disc plate with high wear resistance as claimed in claim 1, wherein: the high-hardness layer (7) is a coating.

5. A valve disc plate with high wear resistance as claimed in claim 1, wherein: the alloy layer (8) is made of vanadium-titanium-chromium alloy.

6. A valve disc plate with high wear resistance as claimed in claim 1, wherein: the high-entropy alloy layer (9) is made of high-entropy alloy and is sprayed on the alloy layer (8).

7. A valve disc plate with high wear resistance as claimed in claim 1, wherein: the anti-corrosion layer (10) is polytetrafluoroethylene with two to three millimeters.