Wear-resistant valve pipe fitting

Abstract

The utility model discloses a wear-resistant valve pipe fitting which comprises a valve body and a butt-joint plate connected to one end of the valve body, the other side of the butt-joint plate is connected with an inlet butt-joint flange plate, and one end, opposite to the inlet butt-joint flange plate, of the valve body is connected with an outlet butt-joint flange plate; the inner wall of the inlet butt joint flange plate is connected with a turbulent flow cylinder, the inner wall of the turbulent flow cylinder is provided with a turbulent flow groove, and the outer side wall of the turbulent flow cylinder is connected with a positioning plate. Then a positioning plate on the surface of the turbulent flow cylinder is driven to be in embedded butt joint with an opening in one end of an inlet butt joint flange plate, meanwhile, an assembling groove in the surface of the positioning plate is driven to be in sliding butt joint along an assembling block, at the moment, the inlet butt joint flange plate is stably in butt joint with a pipeline, and at the moment, a turbulent flow groove in the turbulent flow cylinder conducts directional turbulent flow on a transportation medium; and the direct flushing effect of a medium in the valve pipe fitting is relieved, so that the wear-resisting effect of the valve pipe fitting is improved.

Description

Technical Field

[0001] This utility model belongs to the field of valve and pipe fitting technology, and specifically relates to a wear-resistant valve and pipe fitting. Background Technology

[0002] Wear-resistant valves and pipe fittings refer to valves and pipe connections with strong wear resistance, made of special materials, structural design or surface treatment process. They are mainly used in working conditions that convey fluids containing solid particles, high viscosity, strong corrosiveness or high speed, such as slurry conveying, slag and liquid treatment, and mineral powder conveying in industries such as mining, metallurgy, chemical, power, coal and petroleum. They can effectively extend the service life of equipment and reduce maintenance costs.

[0003] Specifically, in industrial fluid transport systems, while the smooth internal structure of traditional valves and fittings can reduce fluid transport resistance after they are put into operation, they have significant drawbacks under actual working conditions. When media containing solid particles, high viscosity, or high-speed flow pass through valves and fittings, the impact force of the media on the valve core and seat far exceeds conventional expectations. This continuous impact causes high-frequency scouring and impact of the media on the valve core. Especially during valve opening and closing, the drastic change in media flow direction exacerbates the vibration and displacement of the valve core, leading to frequent friction between the valve core sealing surface and the valve seat, accelerating the wear of the seals. At the same time, when the fluid flows through reducers, bends, or throttling points, turbulence and eddies are formed. These unstable fluid states create local high-pressure zones, further intensifying the erosion of the inner walls of valves and fittings. Over time, this not only causes internal seal failure and media leakage in valves and fittings but also significantly shortens the service life of equipment and increases system maintenance costs and downtime risks. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant valve fitting, aiming to solve the problem that when a medium containing solid particles, high viscosity, or high-speed flow passes through the valve fitting, the impact force of the medium on the valve core and valve seat far exceeds conventional expectations. This continuous impact causes high-frequency scouring and impact of the medium on the valve core. Especially during the valve opening and closing process, the drastic change in the direction of medium flow will aggravate the vibration and displacement of the valve core, leading to frequent friction between the valve core sealing surface and the valve seat, and accelerating the wear of the seals.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant valve fitting, comprising a valve body and a mating plate connected to one end of the valve body, an inlet mating flange plate connected to the other side of the mating plate, and an outlet mating flange plate connected to one end of the valve body opposite to the inlet mating flange plate.

[0006] The inner wall of the inlet flange is connected to a baffle cylinder, the inner wall of the baffle cylinder is provided with a baffle groove, the outer wall of the baffle cylinder is connected to a positioning plate, the surface of the positioning plate is provided with an assembly groove, and the inner wall of the inlet flange near the assembly groove is connected to an assembly block.

[0007] To improve wear resistance, as a preferred wear-resistant valve fitting of this utility model, the inner wall size of the turbulence-reducing cylinder is adapted to the inner wall size of the inlet flange plate, the turbulence-reducing groove has a semi-circular inclined structure, and the turbulence-reducing groove is distributed at equal intervals around the center of the cross-section of the turbulence-reducing cylinder.

[0008] To facilitate the assembly of the baffle, as a preferred wear-resistant valve fitting of this utility model, the positioning plate and the baffle are an integral structure, and the baffle forms an interlocking structure through the opening at one end of the positioning plate and the inlet flange plate.

[0009] To facilitate stable installation of the baffle, as a preferred wear-resistant valve fitting of this utility model, two assembly blocks are provided. The two assembly blocks are symmetrically arranged about the transverse center line of the inlet flange plate, and the assembly blocks and the assembly groove on the surface of the positioning plate form a sliding connection structure.

[0010] To improve sealing performance, as a preferred wear-resistant valve fitting of this utility model, the mating end of the inlet flange plate is connected to a sealing ring, which is made of silicone.

[0011] To extend the service life of the sealing ring, as a preferred wear-resistant valve fitting of this invention, the inner side of the sealing ring is connected to an installation strip. The installation strip has an L-shaped cross-section and is an integral part of the sealing ring.

[0012] To facilitate stable installation of the sealing ring, as a preferred wear-resistant valve fitting of this utility model, the inlet flange plate has an installation groove on the side surface near the sealing ring, and the installation strip and the installation groove form an interference fit structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention places a baffle cylinder on the inner wall of the inlet flange plate, then drives the positioning plate on the surface of the baffle cylinder to engage with the opening at one end of the inlet flange plate. At the same time, the assembly groove on the surface of the positioning plate slides along the assembly block, thus stabilizing the connection between the inlet flange plate and the pipeline. At this time, the baffle groove inside the baffle cylinder directionally turbulents the transport medium, reducing the direct impact of the medium inside the valve and pipe fittings, thereby improving the wear resistance of the valve and pipe fittings. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall assembly structure of the wear-resistant valve fitting of this utility model.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the inlet flange plate of this utility model.

[0018] Figure 3 This is a schematic diagram of the mounting block installation structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the spoiler structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the sealing ring installation structure of this utility model.

[0021] In the diagram: 1. Valve body; 2. Connecting plate; 3. Inlet connecting flange plate; 4. Outlet connecting flange plate; 5. Baffle cylinder; 6. Baffle groove; 7. Positioning plate; 8. Assembly groove; 9. Assembly block; 10. Sealing ring; 11. Mounting strip; 12. Mounting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The present invention provides the following technical solution: a wear-resistant valve fitting, including a valve body 1 and a docking plate 2 connected to one end of the valve body 1, an inlet docking flange 3 connected to the other side of the docking plate 2, and an outlet docking flange 4 connected to one end of the valve body 1 relative to the inlet docking flange 3.

[0024] The inner wall of the inlet flange plate 3 is connected to a baffle cylinder 5, the inner wall of the baffle cylinder 5 is provided with a baffle groove 6, the outer wall of the baffle cylinder 5 is connected to a positioning plate 7, the surface of the positioning plate 7 is provided with an assembly groove 8, and the inner wall of the inlet flange plate 3 near the assembly groove 8 is connected to an assembly block 9.

[0025] Preferably, the inner wall dimensions of the turbulence cylinder 5 are adapted to the inner wall dimensions of the inlet flange plate 3, the turbulence groove 6 has a semi-circular inclined structure, and the turbulence groove 6 is distributed at equal intervals around the center of the cross-section of the turbulence cylinder 5.

[0026] Preferably, the positioning plate 7 and the baffle 5 are an integral structure, and the baffle 5 forms a fitting structure with the opening at one end of the inlet flange plate 3 through the positioning plate 7. In specific use: by using the baffle groove 6 on the inner wall of the baffle 5, the medium transported inside can be adjusted by turbulence, so that the impact force is reduced when the medium rushes towards the valve core, thereby improving the wear effect of the valve core.

[0027] Preferably, there are two assembly blocks 9, which are symmetrically arranged about the transverse center line of the inlet flange plate 3. The assembly blocks 9 and the assembly groove 8 on the surface of the positioning plate 7 form a sliding connection structure. In actual use, by sliding the assembly blocks 9 along the assembly groove 8 on the surface of the positioning plate 7, the installation of the baffle 5 is convenient, while avoiding the phenomenon of the baffle 5 shifting due to the transport of the medium.

[0028] Preferably, the mating end of the inlet flange plate 3 is connected to a sealing ring 10, which is made of silicone. In actual use, the sealing ring 10 is quickly installed on one end of the inlet flange plate 3, thus ensuring the sealing of the transported medium during valve and pipe fitting use.

[0029] Preferably, an installation strip 11 is connected to the inner side of the sealing ring 10. The installation strip 11 has an L-shaped cross-section and is an integral part of the sealing ring 10. In practical use, by using the L-shaped installation strip 11, it is ensured that the installation strip 11 remains stable when installed at one end of the inlet flange plate 3, thereby improving the installation stability of the sealing ring 10 and extending its service life.

[0030] Preferably, the surface of the inlet flange plate 3 near the sealing ring 10 has a mounting groove 12, and the mounting strip 11 and the mounting groove 12 form an interference fit structure. In actual use, the sealing ring 10 is easily and quickly installed and stabilized by fitting the mounting strip 11 into the inner wall of the mounting groove 12.

[0031] The working principle of this utility model is as follows: First, the baffle cylinder 5 is placed on the inner wall of the inlet flange plate 3. Then, the positioning plate 7 on the surface of the baffle cylinder 5 is driven to engage with the opening at one end of the inlet flange plate 3. At the same time, the assembly groove 8 on the surface of the positioning plate 7 slides along the assembly block 9 to engage. At this time, the inlet flange plate 3 is stably connected to the pipeline. The baffle groove 6 inside the baffle cylinder 5 directionally turbulent the transport medium, reducing the direct impact of the medium inside the valve and pipe fittings, thereby improving the wear resistance of the valve and pipe fittings. In addition, the installation strip 11 on the inner side of the sealing ring 10 is placed on the inner wall of the installation groove 12 at one end of the inlet flange plate 3. At this time, the sealing ring 10 is stably installed at one end of the inlet flange plate 3, which facilitates the sealing connection of the docking end of the inlet flange plate 3 and avoids leakage of the valve and pipe fittings during the transport of the medium.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wear-resistant valve fitting, comprising a valve body (1) and a mating plate (2) connected to one end of the valve body (1), characterized in that: The other side of the docking plate (2) is connected to the inlet docking flange plate (3), and the valve body (1) is connected to the outlet docking flange plate (4) at one end relative to the inlet docking flange plate (3). The inner wall of the inlet flange plate (3) is connected to a baffle cylinder (5), the inner wall of the baffle cylinder (5) is provided with a baffle groove (6), the outer wall of the baffle cylinder (5) is connected to a positioning plate (7), the surface of the positioning plate (7) is provided with an assembly groove (8), and the inner wall of the inlet flange plate (3) near the assembly groove (8) is connected to an assembly block (9).

2. The wear-resistant valve fitting according to claim 1, characterized in that: The inner wall dimensions of the turbulence cylinder (5) are adapted to the inner wall dimensions of the inlet flange plate (3). The turbulence groove (6) has a semi-circular inclined structure. The turbulence groove (6) is distributed at equal intervals around the center of the cross-section of the turbulence cylinder (5).

3. The wear-resistant valve fitting according to claim 1, characterized in that: The positioning plate (7) and the turbulence cylinder (5) are an integral structure. The turbulence cylinder (5) forms a fitting structure with the opening at one end of the inlet docking flange plate (3) through the positioning plate (7).

4. The wear-resistant valve fitting according to claim 1, characterized in that: There are two assembly blocks (9). The two assembly blocks (9) are symmetrically arranged about the transverse center line of the inlet docking flange plate (3). The assembly blocks (9) and the assembly groove (8) on the surface of the positioning plate (7) form a sliding connection structure.

5. A wear-resistant valve fitting according to claim 1, characterized in that: The mating end of the imported mating flange plate (3) is connected to a sealing ring (10), which is made of silicone.

6. A wear-resistant valve fitting according to claim 5, characterized in that: An installation strip (11) is connected to the inner side of the sealing ring (10). The installation strip (11) has an L-shaped cross-section and is an integral structure with the sealing ring (10).

7. A wear-resistant valve fitting according to claim 6, characterized in that: The inlet flange plate (3) has an installation groove (12) on the side surface near the sealing ring (10), and the installation strip (11) and the installation groove (12) form an interference fit structure.

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