High-performance rotary valve

Abstract

The utility model discloses a high-performance rotary valve which comprises a valve body, a driving connecting flange is arranged at one end of the valve body, a pressing plate is arranged at the other end of the valve body, a feeding flange and a discharging flange are arranged at the upper end and the lower end of the valve body respectively, and the valve body sequentially comprises a corrugated layer and a shell layer from inside to outside. And the surface of the corrugated layer is an S-shaped curved surface. The rotary valve has the advantages that the 316L stainless steel is used as the material of the corrugated layer, and the CF8M stainless steel is used as the material of the shell layer, so that the wear resistance and the corrosion resistance of the whole rotary valve are remarkably improved. The two materials have good corrosion resistance and high mechanical strength, and are particularly suitable for treating high-viscosity, corrosive or abrasive materials, and the service life of equipment is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rotary valve, specifically relates to a high -performance rotary valve. BACKGROUND

[0002] In the industrial production process, as a kind of key equipment component, rotary valve is widely used in material conveying, flow control and isolation etc. occasions. The traditional rotary valve design often adopts relatively simple structure, mainly by valve body, driving device, rotor and other components. However, in practical application, these traditional rotary valve often faces the problems of insufficient wear resistance, poor sealing, limited corrosion resistance, especially when handling high viscosity, corrosive or abrasive material, these problems are particularly prominent.

[0003] Specifically, the valve body of traditional rotary valve is usually made of single material, which is difficult to meet the requirements of corrosion resistance, wear resistance and strength under complex working conditions. In addition, the sealing structure between the valve body and the rotor is often designed simply, which is easy to cause material leakage, affecting production efficiency and product quality. At the same time, the surface of the rotor is easy to be worn during long time operation, which shortens the service life of the equipment.

[0004] Therefore, it is urgent to provide a high-performance rotary valve to solve the problems raised in the background art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a high-performance rotary valve to solve the technical problem that the valve body of traditional rotary valve is usually made of single material, which is difficult to meet the requirements of corrosion resistance, wear resistance and strength under complex working conditions.

[0006] In order to solve the above technical problems, the utility model provides a high-performance rotary valve, which comprises: a valve body, the valve body is provided with a driving connection flange at one end, the valve body is provided with a pressing plate at the other end, the upper end and the lower end of the valve body are respectively provided with an inlet flange and an outlet flange, the valve body comprises a corrugated layer and an outer shell layer from inside to outside, the surface of the corrugated layer is S-shaped curved surface.

[0007] As a further elaboration, the material of the corrugated layer is 316L stainless steel, and the material of the outer shell layer is CF8M stainless steel.

[0008] As a further elaboration, the driving connection flange is provided with a rotating shaft, one end of the rotating shaft is connected with the pressing plate in sliding mode, and the rotating shaft is provided with a sealing ring between the driving connection flange and the pressing plate.

[0009] As a further elaboration, the rotating shaft is provided with a rotating blade inside the valve body, and the surface of the rotating blade is sprayed with WC-Co coating.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. The rotating valve of the present application significantly improves the overall wear resistance and corrosion resistance by using 316L stainless steel as the material of the corrugated layer and CF8M stainless steel as the material of the shell layer. Both materials have good corrosion resistance and high mechanical strength, especially suitable for handling high viscosity, corrosive or abrasive materials, effectively prolonging the service life of the equipment.

[0012] 2. The sealing ring is arranged between the driving connection flange, the shaft and the pressing plate, which ensures the good sealing performance of the rotating valve during operation, reduces the risk of material leakage, and improves the production efficiency and product quality. This design not only enhances the sealing performance of the valve body, but also reduces the maintenance cost.

[0013] 3. The surface of the corrugated layer is designed as an S-shaped curved surface, which not only increases the strength of the valve body, but also improves its fatigue resistance. At the same time, the S-shaped curved surface also helps the uniform distribution and flow of the material in the valve body, reducing the impact and wear of the material on the valve body, further improving the service life of the valve body.

[0014] 4. The surface of the rotating blade is sprayed with WC-Co coating, which has very high hardness and wear resistance, can effectively resist the wear of the material on the rotating blade, and prolong the service life of the rotating blade. At the same time, the WC-Co coating also has good corrosion resistance, further improving the overall performance of the rotating valve.

[0015] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and the drawings.

[0016] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Fig. 1 is a three-dimensional preferred structure schematic diagram of the present application;

[0019] Fig. 2It is the half cut structure schematic diagram of the valve body of the utility model.

[0020] In the drawing:

[0021] 1 valve body, 101 corrugated layer, 102 shell layer, 2 drive connection flange, 3 pressing plate, 4 feed flange, 5 discharge flange, 6 rotating shaft, 7 rotating blade, 8 sealing ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme of the utility model will be described clearly and completely below with reference to the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0023] Referring to Figs. 1-2 , a high-performance rotary valve, comprising: a valve body 1, the valve body 1 is provided with a drive connection flange 2 at one end, the valve body 1 is provided with a pressing plate 3 at the other end, the upper end and the lower end of the valve body 1 are respectively provided with a feed flange 4 and a discharge flange 5, the valve body 1 comprises a corrugated layer 101 and a shell layer 102 from inside to outside, and the surface of the corrugated layer 101 is an S-shaped curved surface. The corrugated layer 101 provides radial elastic compensation ability through the S-shaped curved surface design, adapts to the medium pressure fluctuation, and disperses stress; and the shell layer 102 serves as a structural support and enhances the overall strength. The combination of the corrugated layer 101 and the shell layer 102 provides additional strength and wear resistance, which helps to prolong the service life of the valve body 1.

[0024] As Figs. 1-2 shown, the material of the corrugated layer 101 is 316L stainless steel, and the material of the shell layer 102 is CF8M stainless steel. The corrugated layer 101 of 316L stainless steel: austenitic structure, containing molybdenum element, has excellent resistance to chloride ion corrosion (such as seawater, hydrochloric acid environment) and oxidation resistance, and is suitable for contact with materials. The shell layer 102 of CF8M stainless steel: cast austenitic stainless steel (equivalent to the casting version of 316L), high mechanical strength (yield strength ≥ 205 MPa), good weldability, suitable as a pressure-containing shell.

[0025] As Figs. 1-2 shown, the drive connection flange 2 is provided with a rotating shaft 6, one end of the rotating shaft 6 is slidably connected with the pressing plate 3, so that the rotating shaft 6 has excellent rotation function; the rotating shaft 6 is provided with a sealing ring 8 between the drive connection flange 2 and the pressing plate 3, and the setting of the two sealing rings 8 effectively prevents material leakage, improves production efficiency and product quality.

[0026] As Figs. 1-2As shown, the rotating shaft 6 has a rotating vane 7 inside the valve body 1, and the surface of the rotating vane 7 is coated with a WC-Co coating. The WC-Co coating has extremely high hardness, which can significantly reduce the wear of the rotating vane 7 by the material and extend the service life of the rotating vane 7.

[0027] In summary, the high-performance rotary valve of this invention significantly improves the wear resistance, corrosion resistance, and sealing performance of the rotary valve by adopting high-quality materials, optimizing the sealing structure, innovating the design of the corrugated layer 101, and special treatment of the surface of the rotating blade 7. It meets the usage requirements under complex working conditions, improves production efficiency and product quality, reduces maintenance costs, and has broad application prospects.

[0028] All components selected in this application (parts whose specific structures are not described) are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals.

[0029] This knowledge can be obtained through conventional experimental methods.

[0030] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0031] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high performance rotary valve characterized by, Include: Valve body (1), one end of the valve body (1) is provided with a drive connection flange (2), the other end of the valve body (1) is provided with a pressure plate (3), the upper end and the lower end of the valve body (1) are respectively provided with a feed flange (4) and a discharge flange (5), the valve body (1) comprises a corrugated layer (101) and an outer shell layer (102) from inside to outside, the surface of the corrugated layer (101) is S-shaped curved surface.

2. A high performance rotary valve as claimed in claim 1, characterised in that, The material of the corrugated layer (101) is 316L stainless steel, and the material of the outer shell layer (102) is CF8M stainless steel.

3. A high performance rotary valve as claimed in claim 1, wherein, The drive connection flange (2) is provided with a rotating shaft (6) inside, one end of the rotating shaft (6) is in sliding connection with the pressure plate (3), and the rotating shaft (6) is provided with a sealing ring (8) between the drive connection flange (2) and the pressure plate (3).

4. A high performance rotary valve as claimed in claim 3, characterised in that, The rotating shaft (6) is provided with a rotating blade (7) inside the valve body (1), and the surface of the rotating blade (7) is sprayed with WC-Co coating.

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