Water hammer preventing device for pipeline

Abstract

The utility model relates to the technical field of pipeline water hammer prevention, in particular to a pipeline water hammer prevention device which comprises a middle shell, a top shell is installed on the top of the middle shell in a welded mode, a bottom shell is fixedly installed at the bottom of the middle shell through installation bolts, and the pipeline water hammer prevention device further comprises a sliding plate. The sliding plate is slidably mounted inside the middle shell; a preformed hole is formed in the sliding plate, and a sliding rod penetrates through the preformed hole. A flow guide hole is formed in the circle center of the sliding plate. And a sealing plate is movably mounted on the lower surface of the sliding plate below the flow guide hole. The utility model solves the problem of serious consequences of pipeline burst, equipment damage and the like caused by shock waves generated by the water hammer.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline anti-water hammer, in particular to a pipeline anti-water hammer device. Background Art

[0002] Air compressors are commonly used power equipment in industrial production. They provide power sources by compressing air and are widely used in manufacturing, energy, construction, transportation and other fields. However, water accumulation and water hammer problems in air compressor pipelines are important factors that restrict their service life and safety. Water accumulation may cause pipeline corrosion, blockage and air leakage, while water hammer may generate shock waves, causing serious consequences such as pipeline bursting and equipment damage.

[0003] Water hammer, also known as water impact, is a phenomenon in which the pipe or container carrying the flow of steam or water makes noise and vibration due to the sudden impact force of steam or water. It is caused by the poor flow of the working fluid in the pipeline, resulting in loud noise and strong vibration, and even causing serious damage to the equipment.

[0004] Therefore, a pipeline water hammer protection device is needed to reduce the impact force generated by water hammer, thereby protecting pipelines and equipment from damage. Utility Model Content

[0005] The utility model aims to provide a pipeline water hammer protection device, which has the advantages of reducing the impact force generated by water hammer, thereby protecting pipelines and equipment from damage, and solves the problem that water hammer generates shock waves, causing serious consequences such as pipeline bursting and equipment damage.

[0006] To achieve the above object, the utility model provides the following technical solution: a pipeline water hammer protection device, comprising a middle shell, a top shell is welded and installed on the top of the middle shell, a bottom shell is fixedly installed on the bottom of the middle shell by mounting bolts, and also includes a slide plate;

[0007] The slide plate is slidably mounted on the inner side of the middle shell;

[0008] Wherein, a reserved hole is opened on the slide plate and a slide rod passes through;

[0009] Among them, a diversion hole is opened at the center of the skateboard;

[0010] Wherein, a sealing plate is movably installed on the lower surface of the slide plate below the guide hole.

[0011] When using a pipeline water hammer prevention device in the technical solution, the top shell is welded to the top of the middle shell, and the limit frame and the sliding rod are welded to the top shell and the middle shell. At this time, the slide plate is slidably installed in the middle shell through the sliding rod, and the bottom shell is fixedly installed on the top of the middle shell by the mounting bolts. At this time, the pipeline is kept vertical and the pipeline is cut off. At the same time, the bottom of the top shell and the bottom of the bottom shell are connected and installed with the cut-off position of the pipeline through the connecting flange respectively. Therefore, when the water flows from bottom to top, the slide plate can be pushed up along the sliding rod under the action of water pressure, and during the upward movement of the slide plate, the sealing plate can be pushed down by the limit frame, so that the backflow flows upward through the guide hole. When the water flow is stopped, the pipeline pressure drops. At this time, under the action of the spring body, the slide plate moves down along the sliding rod in the middle shell, thereby sealing the lower pipeline to a certain extent, thereby avoiding the formation of water hammer in the pipeline when water comes suddenly.

[0012] Preferably, the middle shell adopts a cylindrical structure design, and a limiting frame is welded and installed on the top of the inner side of the middle shell. The bottom end of the limiting frame passes through the guide hole and contacts the center of the upper surface of the sealing plate but is not fixedly connected.

[0013] A limit frame is welded and installed on the inner top of the middle shell, and the bottom end of the limit frame passes through the guide hole and contacts the center of the upper surface of the sealing plate but is not fixedly connected, so that the movable upward position of the sealing plate is limited by the limit frame.

[0014] Preferably, the top shell adopts a conical structure design, and a connecting flange is fixedly installed on the top of the top shell.

[0015] The top shell is designed with a conical structure, and a connecting flange is fixedly installed on the top of the top shell, so that the top shell can be connected and installed with the pipeline through the connecting flange.

[0016] Preferably, the bottom shell adopts a conical structure design, and a connecting flange is fixedly installed on the bottom of the bottom shell.

[0017] The bottom shell is designed with a conical structure, and a connecting flange is fixedly installed at the bottom of the bottom shell, so that the bottom shell can be connected and installed with the pipeline through the connecting flange.

[0018] Preferably, the skateboard is designed with hard rubber material, a sliding hole is opened on the skateboard inside the reserved hole and a limiting rod passes through, the bottom end of the limiting rod passes through the sliding hole and is fixedly connected to the upper surface of the sealing plate, and a spring body is elastically connected to the limiting rod above the skateboard. The spring body is designed with compression spring material, and the bottom end of the spring body is elastically connected to the upper surface of the skateboard.

[0019] The slide plate is designed with hard rubber material, and a sliding hole is opened on the slide plate inside the reserved hole and a limit rod passes through it. At the same time, the bottom end of the limit rod passes through the sliding hole and is fixedly connected to the upper surface of the sealing plate, and a spring body is elastically connected to the limit rod above the slide plate. At the same time, the spring body is designed with a compression spring material, and the bottom end of the spring body is elastically connected to the upper surface of the slide plate.

[0020] Preferably, the top of the slide rod passes through the reserved hole and is welded to the inner wall of the top shell, and the bottom of the slide rod passes through the reserved hole and contacts the inner wall of the bottom shell but is not fixedly connected.

[0021] The top of the slide bar is passed through the reserved hole and welded to the inner wall of the top shell, while the bottom of the slide bar passes through the reserved hole and contacts the inner wall of the bottom shell but is not fixedly connected, thereby achieving fixed installation of the slide bar.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] The utility model provides a slide plate, and slides the slide plate on the inner side of the middle shell. At the same time, a reserved hole is opened on the slide plate and a slide rod passes through it. At the same time, a guide hole is opened at the center of the slide plate. At the same time, a sealing plate is movably installed on the lower surface of the slide plate below the guide hole. During specific operation, the top shell is welded on the top of the middle shell, and the limit frame and the slide rod are welded and installed in the top shell and the middle shell. At this time, the slide plate is slidably installed in the middle shell through the slide rod, and the bottom shell is fixedly installed on the top of the middle shell through the installation bolts. At this time, the pipeline is kept vertical and cut off. At the same time, the bottom of the top shell and the bottom of the bottom shell are respectively connected by connecting bolts. The connecting flange is connected and installed at the cut-off position of the pipeline, so that when the water flows from bottom to top, the slide plate can be pushed up along the slide rod under the action of water pressure, and during the upward movement of the slide plate, the sealing plate can be pushed down through the limit frame, so that the backflow flows upward through the diversion hole. When the water flow is stopped, the pipeline pressure drops. At this time, under the action of the spring body, the slide plate moves down along the slide rod in the middle shell, thereby sealing the pipeline below to a certain extent, thereby avoiding the formation of water hammer in the pipeline when water suddenly comes, achieving the effect of reducing the impact force generated by the water hammer, thereby protecting the pipeline and equipment from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 3 For the utility model Figure 2 The structural diagram of the enlarged part in the middle;

[0027] Figure 4It is a schematic diagram of the sliding plate connection structure of the utility model.

[0028] In the figure: 1, top shell; 2, middle shell; 3, bottom shell; 4, sliding rod; 5, sliding plate; 6, limiting frame; 7, spring body; 8, reserved hole; 9, limiting rod; 10, guide hole; 11, sealing plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the utility model is provided: a pipeline water hammer protection device, comprising a middle shell 2, a top shell 1 is welded and installed on the top of the middle shell 2, a bottom shell 3 is fixedly installed on the bottom of the middle shell 2 by mounting bolts, and also includes a slide plate 5;

[0032] Specifically,

[0033] The slide plate 5 is slidably mounted on the inner side of the middle shell 2;

[0034] The slide plate 5 is provided with a reserved hole 8 through which the slide rod 4 passes;

[0035] Among them, a guide hole 10 is opened at the center of the slide plate 5;

[0036] A sealing plate 11 is movably mounted on the lower surface of the slide plate 5 below the guide hole 10 .

[0037] By setting a slide plate 5, and slidingly installing the slide plate 5 on the inner side of the middle shell 2, at the same time, a reserved hole 8 is opened on the slide plate 5 and a slide rod 4 passes through it, at the same time, a guide hole 10 is opened at the center of the slide plate 5, and at the same time, a sealing plate 11 is movably installed on the lower surface of the slide plate 5 below the guide hole 10. During the specific operation, the top shell 1 is welded to the top of the middle shell 2, and the limit frame 6 and the slide rod 4 are welded to the top shell 1 and the middle shell 2. At this time, the slide plate 5 is slidably installed in the middle shell 2 through the slide rod 4. At this time, the bottom shell 3 is fixedly installed on the top of the middle shell 2 by the mounting bolts. At this time, the pipeline is kept vertical and the pipeline is cut off. At the same time, the bottom of the top shell 1 and the bottom of the bottom shell 3 are They are connected and installed through the connecting flange and the cut-off position of the pipeline respectively, so that when the water flows from bottom to top, the slide plate 5 can be pushed up along the slide rod 4 under the action of water pressure, and during the upward movement of the slide plate 5, the sealing plate 11 can be pushed down through the limit frame 6, so that the return flow flows upward through the guide hole 10. When the water flow is stopped, the pipeline pressure drops. At this time, under the action of the spring body 7, the slide plate 5 moves down along the slide rod 4 in the middle shell 2, so as to seal the pipeline below to a certain extent, so as to avoid the formation of water hammer in the pipeline when water comes suddenly, so as to reduce the impact force generated by the water hammer, thereby protecting the pipeline and equipment from damage.

[0038] Furthermore, the middle shell 2 adopts a cylindrical structure design, and a limit frame 6 is welded and installed on the inner top of the middle shell 2. The bottom end of the limit frame 6 passes through the guide hole 10 and contacts the center of the upper surface of the sealing plate 11 but is not fixedly connected.

[0039] The limiting frame 6 is welded and installed on the inner top of the middle shell 2, and the bottom end of the limiting frame 6 passes through the guide hole 10 and contacts the center of the upper surface of the sealing plate 11 but is not fixedly connected, so that the upward movable position of the sealing plate 11 is limited by the limiting frame 6.

[0040] Furthermore, the top shell 1 adopts a conical structure design, and a connecting flange is fixedly installed on the top of the top shell 1.

[0041] By adopting a conical structure design for the top shell 1 and fixing a connecting flange on the top of the top shell 1 , the top shell 1 can be connected and installed with a pipeline through the connecting flange.

[0042] Furthermore, the bottom shell 3 adopts a conical structure design, and a connecting flange is fixedly installed at the bottom of the bottom shell 3.

[0043] By adopting a conical structure design for the bottom shell 3 and fixing a connecting flange at the bottom of the bottom shell 3 , the bottom shell 3 can be connected and installed with the pipeline through the connecting flange.

[0044] Furthermore, the skateboard 5 is designed with a hard rubber material, a sliding hole is opened on the skateboard 5 inside the reserved hole 8 and a limiting rod 9 passes through, the bottom end of the limiting rod 9 passes through the sliding hole and is fixedly connected to the upper surface of the sealing plate 11, and a spring body 7 is elastically connected to the limiting rod 9 above the skateboard 5. The spring body 7 is designed with a compression spring material, and the bottom end of the spring body 7 is elastically connected to the upper surface of the skateboard 5.

[0045] The slide plate 5 is designed with a hard rubber material, and a sliding hole is opened on the slide plate 5 inside the reserved hole 8 and a limiting rod 9 passes through it. At the same time, the bottom end of the limiting rod 9 passes through the sliding hole and is fixedly connected to the upper surface of the sealing plate 11, and a spring body 7 is elastically connected to the limiting rod 9 above the slide plate 5. At the same time, the spring body 7 is designed with a compression spring material, and the bottom end of the spring body 7 is elastically connected to the upper surface of the slide plate 5.

[0046] Furthermore, the top of the slide bar 4 passes through the reserved hole 8 and is welded to the inner wall of the top shell 1 , and the bottom end of the slide bar 4 passes through the reserved hole 8 and contacts the inner wall of the bottom shell 3 but is not fixedly connected.

[0047] The top of the slide bar 4 is passed through the reserved hole 8 and welded to the inner wall of the top shell 1 , and at the same time, the bottom end of the slide bar 4 passes through the reserved hole 8 and contacts the inner wall of the bottom shell 3 but is not fixedly connected, thereby achieving fixed installation of the slide bar 4 .

[0048] When the utility model is used, the top shell 1 is welded and installed on the top of the middle shell 2, and the limiting frame 6 and the sliding rod 4 are welded and installed in the top shell 1 and the middle shell 2, at this time, the sliding plate 5 is slidably installed in the middle shell 2 through the sliding rod 4, and the bottom shell 3 is fixedly installed on the top of the middle shell 2 by the mounting bolts, at this time, the pipeline is kept vertical and the pipeline is cut off. At the same time, the bottom of the top shell 1 and the bottom of the bottom shell 3 are connected and installed with the cut-off position of the pipeline through the connecting flange respectively, so that when the water flows from bottom to top, the sliding plate 5 can be pushed up along the sliding rod 4 under the action of water pressure, and during the upward movement of the sliding plate 5, the sealing plate 11 can be pushed down by the limiting frame 6, so that the reflux flows upward through the guide hole 10. When the water flow is stopped, the pipeline pressure drops. At this time, under the action of the spring body 7, the sliding plate 5 moves down along the sliding rod 4 in the middle shell 2, so as to seal the lower pipeline to a certain extent, thereby avoiding the formation of water hammer in the pipeline when water comes suddenly.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A pipeline water hammer protection device, comprising a middle shell (2), a top shell (1) being welded and mounted on the top of the middle shell (2), and a bottom shell (3) being fixed and mounted on the bottom of the middle shell (2) by mounting bolts, characterized in that: Also includes: A slide plate (5) is slidably mounted on the inner side of the middle shell (2); Wherein, a reserved hole (8) is provided on the slide plate (5) and a slide rod (4) passes through; Wherein, a guide hole (10) is provided at the center of the slide plate (5); A sealing plate (11) is movably mounted on the lower surface of the slide plate (5) below the guide hole (10).

2. A pipeline water hammer protection device according to claim 1, characterized in that: The middle shell (2) adopts a cylindrical structure design, and a limiting frame (6) is welded and installed on the top of the inner side of the middle shell (2). The bottom end of the limiting frame (6) passes through the guide hole (10) and contacts the center of the upper surface of the sealing plate (11) but is not fixedly connected.

3. A pipeline water hammer protection device according to claim 1, characterized in that: The top shell (1) adopts a conical structure design, and a connecting flange is fixedly installed on the top of the top shell (1).

4. A pipeline water hammer protection device according to claim 1, characterized in that: The bottom shell (3) adopts a conical structure design, and a connecting flange is fixedly installed at the bottom of the bottom shell (3).

5. The pipeline water hammer protection device according to claim 1, characterized in that: The slide plate (5) is designed with a hard rubber material. A sliding hole is opened on the slide plate (5) inside the reserved hole (8) and a limiting rod (9) passes through it. The bottom end of the limiting rod (9) passes through the sliding hole and is fixedly connected to the upper surface of the sealing plate (11). The limiting rod (9) above the slide plate (5) is elastically connected to a spring body (7). The spring body (7) is designed with a compression spring material. The bottom end of the spring body (7) is elastically connected to the upper surface of the slide plate (5).

6. A pipeline water hammer protection device according to claim 1, characterized in that: The top of the slide bar (4) passes through the reserved hole (8) and is welded to the inner wall of the top shell (1), and the bottom of the slide bar (4) passes through the reserved hole (8) and is in contact with the inner wall of the bottom shell (3) but is not fixedly connected.

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