High-pressure-resistant valve casting

Abstract

The utility model discloses a high-pressure-resistant valve casting, which relates to the technical field of valve castings and comprises a casting body and protective layers attached and fixed inside and outside the casting body. The protective layer has flexibility; the casting body comprises a valve body and a reinforcing frame fixedly attached to the outer side of the valve body, and the reinforcing frame is in a grid sleeve shape. The protective layer comprises rough layers arranged on the inner side and the outer side of the casting body, and an attachment layer and an anti-corrosion layer which are sequentially attached and fixed to the outer side of the casting body; the utility model has the advantages that the grid sleeve-shaped reinforcing frame is fixed on the outer side of the valve body, so that the overall reinforcing uniformity can be improved; the valve body and the reinforcing frame are formed through one-time casting so as to be convenient to manufacture. The protective layer has flexibility and can provide certain buffer protection when being pressed, and the attaching layer and the anti-corrosion layer in the protective layer can reduce the possibility of cracking and falling when bearing deformation change of pressure when being pressed, so that the use effect is good in a high-pressure environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve casting technical field more specifically relates to a kind of high-pressure-resistant valve casting. BACKGROUND

[0002] Valve casting refers to the casting parts for manufacturing various types of valves, usually made of metal materials, such as cast iron, cast steel, stainless steel, etc., select appropriate material according to the specific application and working environment of valve;

[0003] The existing valve casting "such as application number: CN202322747384.0, a crack-resistant valve body casting" as shown, "the outer surface of valve shell is fixedly connected with reinforcing rib one, reinforcing rib two, the cooperation between lug, shell, reinforcing rib three and fixed rod, lug and shell can wrap the outside of valve shell, when shell is connected with valve shell in a piece, lug can be tightly attached to valve shell, can be tightly wrapped outside of valve shell, to enhance the stress capacity of valve shell, effectively improve the crack-resistant ability of valve body";

[0004] Although the existing valve casting can improve the high-pressure resistance by adding reinforcing ribs, the overall strength is uneven due to the limited wrapping. SUMMARY

[0005] The utility model discloses a kind of high-pressure-resistant valve castings to solve the above technical problems.

[0006] The utility model discloses a kind of high-pressure-resistant valve castings to solve the above technical problems.

[0007] The utility model provides a kind of high-pressure-resistant valve casting, including casting body and the fixed protective layer of inside and outside adhering in it;

[0008] The protective layer has flexibility;

[0009] The casting body includes a valve body and a reinforcing frame fixedly adhered to the outer side of the valve body, and the reinforcing frame has a grid sleeve shape.

[0010] The protective layer includes a rough layer arranged on the inner and outer sides of the casting body, and an additional layer and a corrosion-resistant layer sequentially adhered and fixed to the outer side of the rough layer.

[0011] As a preferred technical solution of the utility model, the material of the casting body is stainless steel.

[0012] As a preferred technical solution of the utility model, the valve body and the reinforcing frame are integrally formed.

[0013] As a preferred technical solution of the utility model, the additional layer is a flexible epoxy resin paint layer.

[0014] As a preferred technical scheme of the utility model, the anticorrosive layer is a polyurethane paint layer.

[0015] The utility model discloses the beneficial effect is as follows:

[0016] Through adopting the reinforcing frame of grid cover shape and fixing on the valve body outside, can improve the overall reinforcing uniformity, the valve body and reinforcing frame are integrally formed to facilitate manufacture, and the protection layer has flexibility, when being under pressure, can provide certain buffer protection, and when the attached layer and anticorrosive layer in it bear the deformation change of pressure, can reduce the possibility of cracking, falling, and the use effect is good under high pressure environment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Drawing mark: cast body-1, protection layer-2, valve body-11, reinforcing frame-12, rough layer-21, attached layer-22, anticorrosive layer-23. CONCRETE IMPLEMENTATION

[0019] As Figure 1 Indicated, the utility model provides: a kind of high-pressure resistant valve casting, including cast body 1 and the protection layer 2 fixedly attached inside and outside it;

[0020] Among them, the material of cast body 1 is stainless steel, and it has good corrosion resistance and high strength.

[0021] The protection layer 2 has flexibility and can provide certain buffer protection when under pressure.

[0022] The cast body 1 includes a valve body 11 and a reinforcing frame 12 fixedly attached to the outside of the valve body 11. The reinforcing frame 12 is in the form of a grid cover and is fixed integrally around the valve body 11. This increases the overall rigidity and pressure resistance of the valve body 11 and reduces deformation caused by external pressure or internal fluid pressure. As shown in the figure, the use of the reinforcing frame 12 in the form of a grid cover can improve the overall uniformity of reinforcement.

[0023] The valve body 11 and the reinforcing frame 12 are integrally formed. They are integrally formed by casting to facilitate manufacturing.

[0024] The protection layer 2 includes a rough layer 21 on the inside and outside of the cast body 1, and an attached layer 22 and an anticorrosive layer 23 fixedly attached in sequence to the outside of the rough layer 21.

[0025] The rough layer 21 can be formed by sandblasting or other methods to treat the inside and outside of the cast body 1. This can improve the connection strength when the attached layer 22 is installed later.

[0026] The flexible epoxy resin paint layer is formed on the rough layer 21 by spraying or other methods, and has excellent adhesion, chemical resistance, flexibility and corrosion resistance.

[0027] The anticorrosive layer 23 is a polyurethane paint layer, which is formed on the adhesion layer 22 by spraying or other methods, and has good flexibility, wear resistance, chemical resistance and excellent appearance.

[0028] The flexible epoxy resin paint layer and the polyurethane paint layer have flexibility, and can reduce the possibility of cracking and falling off when they are deformed under pressure.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0030] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A high-pressure resistant valve casting, comprising a casting body (1) and a protective layer (2) that is attached and fixed to its inner and outer surfaces; Its features are, The protective layer (2) is flexible; The casting (1) includes a valve body (11) and a reinforcing frame (12) that is attached and fixed to its outer side. The reinforcing frame (12) is in the shape of a mesh sleeve. The protective layer (2) includes a rough layer (21) located on the inner and outer sides of the casting (1) and an additional layer (22) and an anti-corrosion layer (23) that are sequentially attached and fixed to the outer side.

2. The high-pressure resistant valve casting according to claim 1, characterized in that, The material of the casting (1) is stainless steel.

3. A high-pressure resistant valve casting according to claim 1, characterized in that, The valve body (11) and the reinforcing frame (12) are integrally formed.

4. A high-pressure resistant valve casting according to claim 1, characterized in that, The additional layer (22) is a flexible epoxy resin paint layer.

5. A high-pressure resistant valve casting according to claim 1, characterized in that, The anti-corrosion layer (23) is a polyurethane paint layer.

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