Pipeline water hammer relieving device

Abstract

The pipeline water hammer relieving device comprises a connecting pipe and a pressure relieving mechanism, the two ends of the connecting pipe are detachably connected with a pipeline, the connecting pipe is provided with a radial pipe, and the pressure relieving mechanism is detachably connected with the radial pipe. The pressure buffering mechanism relieves the pressure, and the water hammer phenomenon is prevented from being further diffused. A plurality of positioning grooves are formed in the side face of the connecting pipe, the bottoms of the positioning grooves communicate with the interior of the connecting pipe, and detachable elastic pieces are arranged on the bottom faces of the positioning grooves. Under the action of pressure, the elastic sheet deforms and expands, so that the volume of the connecting pipe is increased, the water hammer phenomenon is further weakened, and the pipeline is protected.

Description

Technical Field

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

[0002] Water hammer, also known as water shock, is a phenomenon in which the sudden impact force of steam or water causes the pipe or container carrying its flow to make noise and vibrate. It is caused by the poor flow of the working fluid in the pipeline, which causes loud noise and strong vibration, and even causes serious damage to the equipment. The steam system in the workshop transports steam through pipelines. When the equipment is started, the steam supply valve opens quickly, which easily causes water hammer in the steam pipeline, causing considerable damage to the pipeline. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a pipeline water hammer relief device.

[0004] The technical solution of the utility model is: a pipeline water hammer relief device includes a connecting pipe and a pressure relief mechanism, the two ends of the connecting pipe are detachably connected to the pipeline, the connecting pipe is provided with a radial pipe, and the pressure relief mechanism is detachably connected to the radial pipe. A plurality of positioning grooves are provided on the side of the connecting pipe, the bottom of the positioning groove is communicated with the inside of the connecting pipe, and a detachable elastic sheet is provided on the bottom surface of the positioning groove.

[0005] Furthermore, flanges are provided at both ends of the connecting pipe, and conduits are provided on the end faces of the flanges, and the conduits are fitted to the inner wall of the pipeline.

[0006] Furthermore, one side of the elastic sheet is in contact with the bottom surface of the positioning groove, and the other side is provided with a pressure ring; the bottom of the positioning groove is provided with a plurality of evenly spaced threaded holes, the elastic sheet is provided with through holes at positions corresponding to the threaded holes, and the pressure ring is provided with screws at positions corresponding to the through holes.

[0007] Furthermore, the elastic sheet is provided with a plurality of reinforcing ribs with the same spacing.

[0008] Furthermore, the pressure relief mechanism includes a vertical cylinder and a piston. One end of the vertical cylinder is connected to the radial pipe thread. The piston fits the inner wall of the vertical cylinder. A spring is arranged in the vertical cylinder. The two ends of the spring are respectively connected to the piston and the top of the vertical cylinder.

[0009] Furthermore, a transparent plate is provided at the bottom of the vertical cylinder, and a pressure gauge is provided at the top of the vertical cylinder.

[0010] Furthermore, a convex edge is provided on the outer side of the vertical tube, and anti-slip grooves are provided on the side surface of the convex edge.

[0011] Furthermore, a sealing ring is provided below the convex edge, and an annular groove matching the sealing ring is provided on the top of the radial tube.

[0012] Compared with the prior art, the utility model has the following advantages: when the accumulated liquid in the pipeline generates water hammer, the pressure is transmitted to the pressure relief mechanism through the radial tube, and the pressure relief mechanism relieves part of the pressure to prevent the water hammer phenomenon from spreading further. The elastic sheet expands and deforms outwards under the action of strong pressure, increasing the volume of the connecting pipe and further weakening the water hammer phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is an overall schematic diagram of the utility model;

[0015] Figure 2 This is an exploded view of the utility model;

[0016] Figure 3 This is a schematic diagram of the connecting pipe of the utility model;

[0017] Figure 4 This is a schematic diagram of the elastic sheet of the utility model;

[0018] Figure 5 It is a schematic diagram of the pressure relief mechanism of the utility model.

[0019] Among them: 1. connecting pipe; 2. elastic sheet; 3. pressure relief mechanism; 11. radial pipe; 12. flange; 13. positioning groove; 111. annular groove; 121. conduit; 131. threaded hole; 21. pressure ring; 22. reinforcing rib; 31. transparent plate; 32. vertical cylinder; 33. convex edge; 34. pressure gauge; 35. piston; 321. spring; 331. anti-slip pattern; 332. sealing ring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0021] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0022] like Figures 1 to 5As shown, a pipeline water hammer relief device includes a connecting pipe 1 and a pressure relief mechanism 3. Both ends of the connecting pipe 1 are provided with flanges 12, and the connecting pipe 1 is detachably connected to the pipeline through the flanges 12. The end surface of the flange 12 is provided with a guide tube 121, and the guide tube 121 is in contact with the inner wall of the pipeline. The guide tube 121 can quickly keep the connecting pipe 1 and the pipeline coaxial, thereby improving the convenience of installation.

[0023] The side of the connecting pipe 1 is provided with a plurality of positioning grooves 13, the bottom of the positioning groove 13 is connected with the inside of the connecting pipe 1, and the bottom surface of the positioning groove 13 is provided with a detachable elastic sheet 2. One side of the elastic sheet 2 is in contact with the bottom surface of the positioning groove 13, and the other side is provided with a pressure ring 21. The bottom of the positioning groove 13 is provided with a plurality of threaded holes 131 with uniform intervals, and the elastic sheet 2 is provided with through holes at positions corresponding to the threaded holes 131, and the pressure ring 21 is provided with screws at positions corresponding to the through holes. Under the action of the screws, the pressure ring 21 uniformly presses the edge of the elastic sheet 2 to prevent the liquid from leaking through the positioning groove 13, and the pressure ring 21 is fixedly connected with the connecting pipe 1 by screws. The elastic sheet 2 is provided with a plurality of reinforcing ribs 22 with the same spacing, and the reinforcing ribs 22 increase the local thickness of the elastic sheet 2 to prevent the elastic sheet 2 from losing its elasticity prematurely due to fatigue. When water hammer occurs in the connecting pipe 1, the elastic sheet 2 expands radially, so that the internal volume of the connecting pipe 1 is increased, and the water hammer phenomenon is weakened to continue to spread. The connecting pipe 1 is provided with a radial pipe 11, and the radial pipe 11 is provided with an internal thread matching the end of the pressure relief mechanism 3. The detachably connected pressure relief mechanism 3 is convenient for replacement and maintenance.

[0024] The pressure relief mechanism 3 includes a vertical cylinder 32 and a piston 35. One end of the vertical cylinder 32 is threadedly connected to the radial tube 11. The piston 35 is fitted with the inner wall of the vertical cylinder 32. A spring 321 is arranged in the vertical cylinder 32. The two ends of the spring 321 are respectively connected to the piston 35 and the top of the vertical cylinder 32. When water hammer occurs in the connecting pipe 1, the piston 35 moves along the vertical cylinder 32 under the action of pressure, and the spring 321 also deforms to varying degrees as the distance between the piston 35 and the top of the vertical cylinder 32 changes. This plays a role in relieving pressure and weakening the water hammer phenomenon. A transparent plate 31 is arranged at the bottom of the vertical cylinder 32, and a pressure gauge 34 is arranged at the top of the vertical cylinder 32. The transparent plate 31 has a filtering effect on the water entering the vertical cylinder 32 to prevent impurities and debris from affecting the movement of the piston 35. A convex edge 33 is arranged on the outer side of the vertical cylinder 32, and an anti-slip pattern 331 is arranged on the side of the convex edge 33. The convex edge 33 contacts the top surface of the radial tube 11 to limit the depth of the vertical cylinder 32 screwed into the radial tube 11. A sealing ring 332 is provided below the convex edge 33, and an annular groove 111 is provided on the top of the radial tube 11 to match the sealing ring 332. The sealing ring 332 improves the sealing performance of the assembly of the pressure relief mechanism 3 and the connecting tube 1.

[0025] The working principle of the specific embodiment of the utility model is as follows: both ends of the connecting pipe 1 are connected to the pipeline. When the water hammer in the pipeline passes through the connecting pipe 1, the pressure relief mechanism 3 relieves the pressure by the movement of the piston 35 inside it and the compression deformation of the spring 321, thereby reducing the water hammer phenomenon. When water hammer occurs in the connecting pipe 1, the elastic sheet 2 expands radially, increasing the volume of the pipeline, further reducing the water hammer phenomenon.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pipeline water hammer mitigation device, characterized in that: The invention comprises a connecting pipe (1) and a pressure relief mechanism (3), wherein both ends of the connecting pipe (1) are detachably connected to a pipeline, the connecting pipe (1) is provided with a radial pipe (11), the pressure relief mechanism (3) is detachably connected to the radial pipe (11), a plurality of positioning grooves (13) are provided on the side surface of the connecting pipe (1), the bottom of the positioning groove (13) is communicated with the interior of the connecting pipe (1), and a detachable elastic sheet (2) is provided on the bottom surface of the positioning groove (13).

2. The pipeline water hammer mitigation device according to claim 1, characterized in that: Both ends of the connecting pipe (1) are provided with flanges (12), and the end surface of the flange (12) is provided with a conduit (121), and the conduit (121) is in contact with the inner wall of the pipeline.

3. The pipeline water hammer mitigation device according to claim 1, characterized in that: One side of the elastic sheet (2) is in contact with the bottom surface of the positioning groove (13), and the other side is provided with a pressing ring (21); the bottom of the positioning groove (13) is provided with a plurality of threaded holes (131) at even intervals, the elastic sheet (2) is provided with through holes at positions corresponding to the threaded holes (131), and the pressing ring (21) is provided with screws at positions corresponding to the through holes.

4. The pipeline water hammer mitigation device according to claim 1, characterized in that: The elastic sheet (2) is provided with a plurality of reinforcing ribs (22) with equal spacing.

5. The pipeline water hammer mitigation device according to claim 1, characterized in that: The pressure relief mechanism (3) comprises a vertical cylinder (32) and a piston (35), one end of the vertical cylinder (32) is threadedly connected to the radial tube (11), the piston (35) is in contact with the inner wall of the vertical cylinder (32), a spring (321) is arranged in the vertical cylinder (32), and the two ends of the spring (321) are respectively connected to the piston (35) and the top of the vertical cylinder (32).

6. The pipeline water hammer mitigation device according to claim 5, characterized in that: A transparent plate (31) is provided at the bottom of the vertical cylinder (32), and a pressure gauge (34) is provided at the top of the vertical cylinder (32).

7. The pipeline water hammer mitigation device according to claim 5, characterized in that: The outer side of the vertical tube (32) is provided with a convex edge (33), and the side surface of the convex edge (33) is provided with an anti-slip pattern (331).

8. The pipeline water hammer mitigation device according to claim 7, characterized in that: A sealing ring (332) is provided below the convex edge (33), and an annular groove (111) matching the sealing ring (332) is provided at the top of the radial tube (11).

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