Scouring-resistant double-flange vulcanization type center line-type butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a scouring-resistant double-flange vulcanization type center line-type butterfly valve which comprises a butterfly valve body, a water inlet pipe is arranged on the side, close to the bottom end, of the butterfly valve body in a communicated mode, and a water outlet pipe is arranged on the other side, close to the bottom end, of the butterfly valve body in a communicated mode. Washing-resistant mechanisms are arranged in the water inlet pipe and the water outlet pipe; the washing-resistant mechanism comprises an annular plate, the annular plate is fixedly installed on the inner wall of the water inlet pipe, a limiting rod is fixedly installed on the outer wall of the annular plate, a limiting groove is formed in the inner wall of the water inlet pipe, and the limiting rod is inserted into the limiting groove. The water inlet pipe and the water outlet pipe can be buffered to a certain extent, abrasion of water flow impact to the water inlet pipe wall or the water outlet pipe wall is reduced, the service life of the butterfly valve body is prolonged, the structure is simple, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a scour-resistant double-flange vulcanized center-line butterfly valve. Background Art

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve that can be used for the on-off control of low-pressure pipeline media. A butterfly valve refers to a valve whose closing part (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays a role of cutting off and throttling on the pipeline. The butterfly valve opening and closing part is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening, closing or regulating. The two ends of the butterfly valve are generally connected to the flange on the pipeline through two flanges to achieve fixation;

[0003] The inlet and outlet pipes of the existing double-flange vulcanized centerline butterfly valve are prone to severe wear after being eroded by water for a long time, which makes repair difficult and results in a short service life of the butterfly valve. Therefore, we propose a erosion-resistant double-flange vulcanized centerline butterfly valve. Utility Model Content

[0004] The utility model aims to provide a scour-resistant double-flange vulcanized centerline butterfly valve, which solves the problems in the background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a scour-resistant double-flange vulcanized centerline butterfly valve, comprising a butterfly valve body, a water inlet pipe is connected to one side of the butterfly valve body near the bottom end, a water outlet pipe is connected to the other side of the butterfly valve body near the bottom end, and a scour-resistant mechanism is provided inside the water inlet pipe and the water outlet pipe;

[0006] The anti-scour mechanism comprises a ring plate, the ring plate is fixedly mounted on the inner wall of the water inlet pipe, a limit rod is fixedly mounted on the outer wall of the ring plate, a limit groove is provided on the inner wall of the water inlet pipe, the limit rod is inserted into the limit groove, a spring is surrounded on the outer wall of the limit rod, one end of the spring is fixedly mounted on the inner wall of the water inlet pipe, the other end of the spring is fixedly mounted on the outer wall of the ring plate, and an anti-scour pad is fixedly mounted on the inner wall of the ring plate;

[0007] The internal material composition of the scour-resistant pad includes a first scour-resistant layer, a second scour-resistant layer is fixedly installed on the top of the first scour-resistant layer, and a third scour-resistant layer is fixedly installed on the top of the second scour-resistant layer.

[0008] Preferably, the number of the limiting rods and the limiting grooves are both four, and the limiting rods are adapted to the limiting grooves. By providing the limiting rods, a limiting effect can be exerted on the spring to ensure the stability of the spring when compressed.

[0009] Preferably, the ring plate is in an arched shape, so that the ring plate can have a movable deformation amount.

[0010] Preferably, the ring plate is made of elastic PVC material, so that the ring plate can play a buffering role.

[0011] Preferably, the first erosion-resistant layer is made of glass fiber reinforced epoxy.

[0012] Preferably, the second erosion-resistant layer is made of glass fiber composite material.

[0013] Preferably, the third erosion-resistant layer is made of Teflon.

[0014] The utility model provides a scour-resistant double-flange vulcanized centerline butterfly valve. The scour-resistant double-flange vulcanized centerline butterfly valve has the following beneficial effects:

[0015] (1) The scour-resistant double-flange vulcanized centerline butterfly valve can play a certain buffering role on the water inlet pipe and the water outlet pipe through the cooperation of the ring plate, the limit rod, the limit groove and the spring in the scour-resistant mechanism, reduce the impact of water flow on the wear of the water inlet pipe wall or the water outlet pipe wall, and increase the service life of the butterfly valve body. It has a simple structure and strong practicality.

[0016] (2) The erosion-resistant double-flange vulcanized centerline butterfly valve can provide a first erosion-resistant layer, a second erosion-resistant layer, and a third erosion-resistant layer to protect the ring plate to a certain extent, thereby greatly improving the erosion resistance of the ring plate, thereby further improving the service life of the butterfly valve body, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 4 This is a schematic diagram of the internal material composition structure of the scour-resistant pad of the utility model;

[0021] Figure 5 This is a schematic diagram of the ring plate structure of the utility model.

[0022] In the figure: 1. butterfly valve body; 2. water inlet pipe; 3. water outlet pipe; 4. scour-resistant mechanism; 401. ring plate; 402. limit rod; 403. limit groove; 404. spring; 405. scour-resistant pad; 4051. first scour-resistant layer; 4052. second scour-resistant layer; 4053. third scour-resistant layer. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0024] like Figure 1-5 As shown, the utility model provides a technical solution: a scour-resistant double-flange vulcanized centerline butterfly valve, comprising a butterfly valve body 1, a water inlet pipe 2 is connected to one side of the butterfly valve body 1 near the bottom, a water outlet pipe 3 is connected to the other side of the butterfly valve body 1 near the bottom, and a scour-resistant mechanism 4 is provided inside the water inlet pipe 2 and the water outlet pipe 3;

[0025] The anti-scour mechanism 4 includes a ring plate 401, which is arched in shape so that the ring plate 401 can have a movable deformation amount. The material of the ring plate 401 is elastic PVC material, so that the ring plate 401 can play a buffering role. The ring plate 401 is fixedly installed on the inner wall of the water inlet pipe 2, and a limiting rod 402 is fixedly installed on the outer wall of the ring plate 401. A limiting groove 403 is provided on the inner wall of the water inlet pipe 2, and the limiting rod 402 is inserted into the limiting groove 403. The number of the limiting rod 402 and the limiting groove 403 are both four, and the limiting rod 402 is adapted to the limiting groove 403. By setting the limiting rod 402, the spring 404 can be limited to ensure the stability of the spring 404 when compressed. The outer wall of the limit rod 402 is surrounded by a spring 404, one end of the spring 404 is fixedly mounted on the inner wall of the water inlet pipe 2, and the other end of the spring 404 is fixedly mounted on the outer wall of the ring plate 401, and the inner wall of the ring plate 401 is fixedly mounted with an anti-scouring pad 405; when water flows through the water inlet pipe 2 and the water outlet pipe 3, the water flow will impact the ring plate 401, and the larger impact force will squeeze the ring plate 401, causing the ring plate 401 to deform, and the ring plate 401 squeezes the limit rod 402 and the spring 404, so that a certain buffering effect can be played on the water inlet pipe 2 and the water outlet pipe 3, reducing the impact of the water flow on the wall of the water inlet pipe 2 or the wall of the water outlet pipe 3, and prolonging the service life of the butterfly valve body 1, with a simple structure and strong practicality.

[0026] The internal material composition of the erosion-resistant pad 405 includes a first erosion-resistant layer 4051, a second erosion-resistant layer 4052 is fixedly installed on the top of the first erosion-resistant layer 4051, a third erosion-resistant layer 4053 is fixedly installed on the top of the second erosion-resistant layer 4052, the first erosion-resistant layer 4051 is made of glass fiber reinforced epoxy, the second erosion-resistant layer 4052 is made of glass fiber composite material, and the third erosion-resistant layer 4053 is made of Teflon; by arranging the first erosion-resistant layer 4051, the second erosion-resistant layer 4052 and the third erosion-resistant layer 4053, the ring plate 401 can be protected to a certain extent, the erosion resistance of the ring plate 401 is greatly improved, thereby further improving the service life of the butterfly valve body 1, and the practicality is strong.

[0027] When the scour-resistant double-flange vulcanized center line butterfly valve is in use, when water flows through the water inlet pipe 2 and the water outlet pipe 3, the water flow will impact the ring plate 401, and the larger impact force will squeeze the ring plate 401, causing the ring plate 401 to deform, and the ring plate 401 squeezes the limit rod 402 and the spring 404, so that it can play a certain buffering role on the water inlet pipe 2 and the water outlet pipe 3, reduce the impact of the water flow on the wall of the water inlet pipe 2 or the wall of the water outlet pipe 3, and improve the service life of the butterfly valve body 1. The structure is simple and the practicability is strong. By arranging the first scour-resistant layer 4051, the second scour-resistant layer 4052, and the third scour-resistant layer 4053, the ring plate 401 can be protected to a certain extent, and the scour resistance of the ring plate 401 is greatly improved, thereby further improving the service life of the butterfly valve body 1, and the practicability is strong.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A scour-resistant double-flange vulcanized centerline butterfly valve, comprising a butterfly valve body (1), characterized in that: A water inlet pipe (2) is provided on one side of the butterfly valve body (1) near the bottom end, and a water outlet pipe (3) is provided on the other side of the butterfly valve body (1) near the bottom end. Anti-scouring mechanisms (4) are provided inside the water inlet pipe (2) and the water outlet pipe (3); The anti-scour mechanism (4) comprises a ring plate (401), the ring plate (401) being fixedly mounted on the inner wall of the water inlet pipe (2), a limiting rod (402) being fixedly mounted on the outer wall of the ring plate (401), a limiting groove (403) being provided on the inner wall of the water inlet pipe (2), the limiting rod (402) being inserted into the limiting groove (403), a spring (404) being surrounded on the outer wall of the limiting rod (402), one end of the spring (404) being fixedly mounted on the inner wall of the water inlet pipe (2), the other end of the spring (404) being fixedly mounted on the outer wall of the ring plate (401), and an anti-scour pad (405) being fixedly mounted on the inner wall of the ring plate (401); The internal material composition of the scour-resistant pad (405) comprises a first scour-resistant layer (4051), a second scour-resistant layer (4052) is fixedly mounted on the top of the first scour-resistant layer (4051), and a third scour-resistant layer (4053) is fixedly mounted on the top of the second scour-resistant layer (4052).

2. The erosion-resistant double-flange vulcanized centerline butterfly valve according to claim 1 is characterized by: The number of the limiting rods (402) and the number of the limiting grooves (403) are both four, and the limiting rods (402) are adapted to the limiting grooves (403).

3. The erosion-resistant double-flange vulcanized centerline butterfly valve according to claim 1 is characterized in that: The ring plate (401) is in an arch shape.

4. The erosion-resistant double-flange vulcanized centerline butterfly valve according to claim 1 is characterized by: The ring plate (401) is made of elastic PVC material.

5. The erosion-resistant double-flange vulcanized centerline butterfly valve according to claim 1 is characterized in that: The first scour-resistant layer (4051) is made of glass fiber reinforced epoxy.

6. The erosion-resistant double-flange vulcanized centerline butterfly valve according to claim 1 is characterized by: The second scour-resistant layer (4052) is made of glass fiber composite material.

7. The erosion-resistant double-flange vulcanized centerline butterfly valve according to claim 1, characterized in that: The third erosion-resistant layer (4053) is made of Teflon.

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