Pipeline pressure relief device

Abstract

The utility model relates to the technical field of pressure relief devices, and provides a pipeline pressure relief device which comprises a shell, a top plate, an elastic component, a sealing plate, a water outlet component and a pipeline connecting piece. Wherein the interior of the shell is hollow, and a top plate is arranged at the top end of the shell; the top plate is connected with the sealing plate through the elastic component, and the sealing plate is arranged in the shell and is in sliding connection with the shell; a water outlet component is arranged on the side face of the shell and is hollow, one end of the water outlet component is open, the other end of the water outlet component is sealed, the open end of the water outlet component is located in the shell, and the sealed end of the water outlet component is located outside the shell. A water outlet groove is formed in the side face of the water outlet component, and the vertical distance between the water outlet component and the top plate is smaller than the vertical distance between the sealing plate and the top plate in the state that no external force is applied; and the bottom end of the shell is connected with a pipeline connecting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure relief devices, and more specifically, to a pipeline pressure relief device. Background Art

[0002] Water pipeline systems are essential infrastructure for modern urban water supply and industrial production. Existing water pipelines typically operate under high pressure to ensure efficient delivery of water to its destination. However, pipelines can experience various pressure fluctuations during operation due to various factors, such as pump startup and shutdown, rapid valve closing, and sudden changes in fluid flow. These factors can lead to water hammer, a phenomenon in which pressure in the pipeline rapidly rises and falls, causing serious damage to the pipeline system, such as pipe ruptures, joint damage, and equipment failure.

[0003] To protect water lines from damage caused by water hammer and excessive pressure, it is crucial to install a pressure relief device. Utility Model Content

[0004] The utility model aims to overcome the defect in the prior art that a water pipeline is easily broken due to excessive water pressure, and provides a pipeline pressure relief device for preventing the water pressure in the water pipeline from being too high.

[0005] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0006] A pipeline pressure relief device comprises a shell, a top plate, an elastic component, a sealing plate, a water outlet component and a pipeline connector;

[0007] The shell is hollow inside, and a top plate is provided at the top of the shell; the top plate is connected to the sealing plate through the elastic component, and the sealing plate is provided inside the shell and is slidably connected to the shell;

[0008] A water outlet component is provided on the side of the shell. The interior of the water outlet component is hollow, and one end of the water outlet component is open and the other end is sealed. The open end of the water outlet component is located inside the shell, and the sealed end is located outside the shell. A water outlet groove is provided on the side of the water outlet component. When no external force is applied, the vertical distance between the water outlet component and the top plate is smaller than the vertical distance between the sealing plate and the top plate.

[0009] The bottom end of the shell is connected to the pipeline connector.

[0010] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0011] The present application utilizes a pipe connector to connect the pipe pressure relief device to the water pipe that needs to be pressure relieved. The water in the water pipe flows into the interior of the shell through the pipe connector, flows to the position of the sealing plate, and is blocked by the sealing plate. When the water pressure is normal, the water pressure presses the sealing plate, and the elastic component is compressed. The vertical distance between the sealing plate and the top plate is shortened, but the vertical distance between the sealing plate and the top plate is still greater than the vertical distance between the water outlet component and the top plate, and water cannot flow into the water outlet component; when the water pressure exceeds the threshold, the water pressure exceeding the threshold compresses the elastic component to the extent that the vertical distance between the sealing plate and the top plate is less than the vertical distance between the water outlet component and the top plate, and water flows into the water outlet component and flows out from the water outlet trough, and the pressure inside the water pipe is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the first structure of the pipeline pressure relief device proposed in Example 1;

[0013] Figure 2 This is a schematic diagram of the second structure of the pipeline pressure relief device proposed in Example 1;

[0014] Figure 3 This is a schematic diagram of the third structure of the pipeline pressure relief device proposed in Example 1;

[0015] Among them, 1-shell, 2-top plate, 3-elastic component, 4-sealing plate, 5-water outlet component, 51-water outlet groove, 6-pipe connecting piece, 61-connecting ring, 62-sleeve, 63-rubber gasket. DETAILED DESCRIPTION

[0016] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting this patent;

[0017] In order to better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size;

[0018] It is understandable to those skilled in the art that some well-known structures and descriptions thereof may be omitted in the drawings.

[0019] The technical solution of the present utility model is further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1

[0021] This embodiment provides a pipeline pressure relief device. Figure 1 This is a schematic diagram of the first structure of the pipeline pressure relief device proposed in this embodiment; Figure 2 This is a second structural schematic diagram of the pipeline pressure relief device proposed in this embodiment.

[0022] This embodiment provides a pipeline pressure relief device, comprising a housing 1, a top plate 2, an elastic component 3, a sealing plate 4, a water outlet component 5, and a pipeline connector 6;

[0023] The shell 1 is hollow inside, and a top plate 2 is provided at the top of the shell 1; the top plate 2 is connected to the sealing plate 4 through the elastic component 3, and the sealing plate 4 is provided inside the shell 1 and is slidably connected to the shell 1;

[0024] A water outlet component 5 is provided on the side of the housing 1. The water outlet component 5 is hollow inside, with one end open and the other end sealed. The open end of the water outlet component 5 is located inside the housing 1, and the sealed end is located outside the housing 1. A water outlet groove 51 is provided on the side of the water outlet component 5. When no external force is applied, the vertical distance between the water outlet component 5 and the top plate 2 is smaller than the vertical distance between the sealing plate 4 and the top plate 2.

[0025] The bottom end of the housing 1 is connected to a pipe connector 6 .

[0026] During the specific implementation process, the pipeline pressure relief device is connected to the water pipe that needs to be relieved by using the pipeline connector 6. The water in the water pipe flows into the interior of the shell 1 through the pipeline connector 6, flows to the position of the sealing plate 4, and is blocked by the sealing plate 4. When the water pressure is normal, the water pressure presses the sealing plate 4, and the elastic component 3 is compressed. The vertical distance between the sealing plate 4 and the top plate 2 is shortened, but the vertical distance between the sealing plate 4 and the top plate 2 is still greater than the vertical distance between the water outlet component 5 and the top plate 2, and water cannot flow into the water outlet component 5; when the water pressure exceeds the threshold, the water pressure exceeding the threshold compresses the elastic component 3 to the extent that the vertical distance between the sealing plate 4 and the top plate 2 is less than the vertical distance between the water outlet component 5 and the top plate 2, and water flows into the water outlet component 5 and flows out from the water outlet trough 51, and the pressure on the inner side of the water pipe is reduced.

[0027] As an example, the pipeline pressure relief device of the present application can provide long-term and reliable early warning of pipeline pressure. When the internal pressure of the pipeline is too high, water will flow out from the water outlet trough 51. The relevant staff will notice the phenomenon of water outflow and know that the internal pressure of the pipeline is too high, and then take remedial measures. At the same time, it can also relieve the excessive water pressure in the pipeline, protect the normal use of the pipeline, and prevent high pressure from shortening the service life of the pipeline.

[0028] As an example, the number of the water outlet components 5 is set according to actual needs. Figure 1 The figure shows the case where the number of water outlet components 5 is 1. Figure 2 The number of the water outlet components 5 is shown as 2; Figure 2As shown, the two water outlet components 5 are arranged opposite to each other, which can make the water pressure on both sides of the pipeline connected to the pipeline pressure relief device equal, so that the force of the water pressure on the pipeline is more even, thereby increasing the overall life of the pipeline.

[0029] In an optional embodiment, the pipe connector 6 includes a connecting ring 61 and a sleeve 62 , the outer wall of the connecting ring 61 is connected to the bottom end of the shell 1 , and the inner wall of the connecting ring 61 is connected to the sleeve 62 .

[0030] As an exemplary illustration, the sleeve 62 matches the water pipe that needs to be depressurized, and the connecting ring 61 matches the bottom end of the shell 1. In the specific implementation process, by changing the sizes of the connecting ring 61 and the sleeve 62, the pipeline pressure relief device can be adapted to water pipes of different sizes.

[0031] In an optional embodiment, the material of the housing 1 , the top plate 2 , the sealing plate 4 , the water outlet component 5 and / or the sleeve 62 includes a silicone-modified PVC material.

[0032] As an example, the organosilicon-modified PVC material is a composite material formed by combining an organosilicon material with a PVC (polyvinyl chloride) material. Compared with the traditional PVC material, the material has the advantages of greater toughness and greater pressure resistance.

[0033] In an optional embodiment, the pipe connector 6 further includes a rubber gasket 63 , which is disposed at the end of the sleeve 62 that is not connected to the connecting ring 61 .

[0034] In this optional embodiment, Figure 3 This is a schematic diagram of the third structure of the pipeline pressure relief device proposed in this embodiment; Figure 3 As shown, the rubber gasket 63 can enhance the sealing and shock absorption effect of the connection between the pipeline pressure relief device and the pipeline.

[0035] In an optional embodiment, the outer side of the sleeve 62 is provided with threads.

[0036] In this optional embodiment, the pipeline pressure relief device can be threadedly connected to the pipeline that needs to be relieved through the threads on the outside of the sleeve 62.

[0037] Example 2

[0038] This embodiment makes improvements based on the pipeline pressure relief device proposed in Example 1.

[0039] This embodiment provides a pipeline pressure relief device, comprising a housing 1, a top plate 2, an elastic component 3, a sealing plate 4, a water outlet component 5, and a pipeline connector 6;

[0040] The shell 1 is hollow inside, and a top plate 2 is provided at the top of the shell 1; the top plate 2 is connected to the sealing plate 4 through the elastic component 3, and the sealing plate 4 is provided inside the shell 1 and is slidably connected to the shell 1;

[0041] A water outlet component 5 is provided on the side of the housing 1. The water outlet component 5 is hollow inside, with one end open and the other end sealed. The open end of the water outlet component 5 is located inside the housing 1, and the sealed end is located outside the housing 1. A water outlet groove 51 is provided on the side of the water outlet component 5. When no external force is applied, the vertical distance between the water outlet component 5 and the top plate 2 is smaller than the vertical distance between the sealing plate 4 and the top plate 2.

[0042] The bottom end of the housing 1 is connected to a pipe connector 6 .

[0043] During the specific implementation process, the pipeline pressure relief device is connected to the water pipe that needs to be relieved by using the pipeline connector 6. The water in the water pipe flows into the interior of the shell 1 through the pipeline connector 6, flows to the position of the sealing plate 4, and is blocked by the sealing plate 4. When the water pressure is normal, the water pressure presses the sealing plate 4, and the elastic component 3 is compressed. The vertical distance between the sealing plate 4 and the top plate 2 is shortened, but the vertical distance between the sealing plate 4 and the top plate 2 is still greater than the vertical distance between the water outlet component 5 and the top plate 2, and water cannot flow into the water outlet component 5; when the water pressure exceeds the threshold, the water pressure exceeding the threshold compresses the elastic component 3 to the extent that the vertical distance between the sealing plate 4 and the top plate 2 is less than the vertical distance between the water outlet component 5 and the top plate 2, and water flows into the water outlet component 5 and flows out from the water outlet trough 51, and the pressure on the inner side of the water pipe is reduced.

[0044] As an example, the pipeline pressure relief device of the present application can provide long-term and reliable early warning of pipeline pressure. When the internal pressure of the pipeline is too high, water will flow out from the water outlet trough 51. The relevant staff will notice the phenomenon of water outflow and know that the internal pressure of the pipeline is too high, and then take remedial measures. At the same time, it can also relieve the excessive water pressure in the pipeline, protect the normal use of the pipeline, and prevent high pressure from shortening the service life of the pipeline.

[0045] In an optional embodiment, the material of the housing 1 , the top plate 2 , the sealing plate 4 and / or the water outlet component 5 includes a silicone-modified PVC material.

[0046] As an example, the organosilicon-modified PVC material is a composite material formed by combining an organosilicon material with a PVC (polyvinyl chloride) material. Compared with the traditional PVC material, the material has the advantages of greater toughness and greater pressure resistance.

[0047] In an optional embodiment, the structure of the organosilicon-modified PVC material includes: a core-shell structure having an inner core layer and an outer shell layer, the material of the inner core layer includes polysiloxane-polyether copolymer, and the material of the outer shell layer includes methyl methacrylate.

[0048] In this optional embodiment, PVC pipes are usually used for water transportation. There will be water pressure when water is transported. Water pressure is used to transport water to the place where water is needed. When the PVC pipe is used for a long time, the pressure resistance will deteriorate and it is necessary to replace it with a new PVC pipe. However, the current PVC pipe pressure relief device has poor toughness and poor weather resistance, and cannot play a reliable long-term pipeline pressure relief role. It is easy to cause the pipeline to burst accidentally, which affects the normal water supply. In view of the shortcomings of the current PVC pipe pressure relief device with poor toughness and poor weather resistance, the pipeline pressure relief device proposed in this application adopts silicone modified PVC material, and the polysiloxane-polyether copolymer in the inner core layer is made of silicone. The polymer absorbs impact energy and provides impact resistance and toughening properties for the pipeline pressure relief device. The methyl methacrylate in the outer shell layer maintains good compatibility with PVC, so that the core-shell structured silicone impact modifier is evenly dispersed in the PVC material. The polysiloxane-polyether copolymer in the inner core layer not only has good high and low temperature consistency and good weather resistance, but also has good toughness, easy dispersion, and hydrophobicity. The methyl methacrylate in the outer shell layer has excellent compatibility with PVC, and has the characteristics of good weather resistance, high strength, and good toughness. The use of silicone-modified PVC material can enhance the toughness of the pipeline pressure relief device and avoid damage to the pipeline pressure relief device.

[0049] Example 3

[0050] This embodiment makes improvements based on the pipeline pressure relief device body proposed in Embodiments 1 and 2.

[0051] This embodiment provides a pipeline pressure relief device, comprising a housing 1, a top plate 2, an elastic component 3, a sealing plate 4, a water outlet component 5, and a pipeline connector 6;

[0052] The shell 1 is hollow inside, and a top plate 2 is provided at the top of the shell 1; the top plate 2 is connected to the sealing plate 4 through the elastic component 3, and the sealing plate 4 is provided inside the shell 1 and is slidably connected to the shell 1;

[0053] A water outlet component 5 is provided on the side of the housing 1. The water outlet component 5 is hollow inside, with one end open and the other end sealed. The open end of the water outlet component 5 is located inside the housing 1, and the sealed end is located outside the housing 1. A water outlet groove 51 is provided on the side of the water outlet component 5. When no external force is applied, the vertical distance between the water outlet component 5 and the top plate 2 is smaller than the vertical distance between the sealing plate 4 and the top plate 2.

[0054] The bottom end of the housing 1 is connected to a pipe connector 6 .

[0055] During the specific implementation process, the pipeline pressure relief device is connected to the water pipe that needs to be relieved by using the pipeline connector 6. The water in the water pipe flows into the interior of the shell 1 through the pipeline connector 6, flows to the position of the sealing plate 4, and is blocked by the sealing plate 4. When the water pressure is normal, the water pressure presses the sealing plate 4, and the elastic component 3 is compressed. The vertical distance between the sealing plate 4 and the top plate 2 is shortened, but the vertical distance between the sealing plate 4 and the top plate 2 is still greater than the vertical distance between the water outlet component 5 and the top plate 2, and water cannot flow into the water outlet component 5; when the water pressure exceeds the threshold, the water pressure exceeding the threshold compresses the elastic component 3 to the extent that the vertical distance between the sealing plate 4 and the top plate 2 is less than the vertical distance between the water outlet component 5 and the top plate 2, and water flows into the water outlet component 5 and flows out from the water outlet trough 51, and the pressure on the inner side of the water pipe is reduced.

[0056] As an example, the pipeline pressure relief device of the present application can provide long-term and reliable early warning of pipeline pressure. When the internal pressure of the pipeline is too high, water will flow out from the water outlet trough 51. The relevant staff will notice the phenomenon of water outflow and know that the internal pressure of the pipeline is too high, and then take remedial measures. At the same time, it can also relieve the excessive water pressure in the pipeline, protect the normal use of the pipeline, and prevent high pressure from shortening the service life of the pipeline.

[0057] In an optional embodiment, a sealing rubber ring is connected to the outer side of the sealing plate 4 , and the sealing rubber ring is slidably connected to the inside of the housing 1 .

[0058] As an exemplary illustration, using a sealing rubber ring can effectively enhance the sealing effect.

[0059] In an optional embodiment, the water outlet trough 51 is provided with a dustproof net.

[0060] As an exemplary explanation, providing a dustproof net at the water outlet trough 51 can prevent dust or other fine particulate matter from entering the water pipeline from the water outlet trough 51, thereby preventing the water in the water pipeline from being contaminated.

[0061] In an optional embodiment, the elastic component 3 includes a spring.

[0062] As an example, Figure 1 The elastic component 3 is a spring. By changing parameters such as the wire diameter, the number of coils, and the coil spacing of the spring, the stiffness and load characteristics of the spring can be adjusted to adapt to different water pressure thresholds.

[0063] The same or similar reference numerals correspond to the same or similar components;

[0064] The terms used in the drawings to describe positional relationships are for illustrative purposes only and should not be construed as limiting this patent;

[0065] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A pipeline pressure relief device, comprising a housing (1), a top plate (2), an elastic component (3), a sealing plate (4), a water outlet component (5) and a pipeline connector (6); in, The shell (1) is hollow inside, and a top plate (2) is provided at the top end of the shell (1); the top plate (2) is connected to the sealing plate (4) via the elastic component (3); the sealing plate (4) is provided inside the shell (1) and is slidably connected to the shell (1); A water outlet component (5) is provided on the side of the shell (1), the interior of the water outlet component (5) is hollow, one end of the water outlet component (5) is open, and the other end is sealed, the open end of the water outlet component (5) is located inside the shell (1), and the sealed end is located outside the shell (1); a water outlet groove (51) is provided on the side of the water outlet component (5), and in a state where no external force is applied, the vertical distance between the water outlet component (5) and the top plate (2) is smaller than the vertical distance between the sealing plate (4) and the top plate (2); The bottom end of the housing (1) is connected to a pipeline connector (6).

2. The pipeline pressure relief device according to claim 1, characterized in that: The pipeline connector (6) comprises a connecting ring (61) and a sleeve (62), wherein the outer wall of the connecting ring (61) is connected to the bottom end of the housing (1), and the inner wall of the connecting ring (61) is connected to the sleeve (62).

3. The pipeline pressure relief device according to claim 2, characterized in that: The material of the housing (1), the top plate (2), the sealing plate (4), the water outlet component (5) and / or the sleeve (62) includes a silicone-modified PVC material.

4. The pipeline pressure relief device according to claim 2, characterized in that: The pipeline connector (6) further comprises a rubber gasket (63), and the rubber gasket (63) is arranged at the end of the sleeve (62) that is not connected to the connecting ring (61).

5. The pipeline pressure relief device according to claim 2, characterized in that: The outer side of the sleeve (62) is provided with threads.

6. The pipeline pressure relief device according to claim 1, characterized in that: The material of the housing (1), the top plate (2), the sealing plate (4) and / or the water outlet component (5) includes silicone-modified PVC material.

7. The pipeline pressure relief device according to claim 3 or 6, characterized in that: The structure of the organosilicon-modified PVC material comprises a core-shell structure having a core layer and an outer shell layer. The material of the core layer comprises polysiloxane-polyether copolymer, and the material of the outer shell layer comprises methyl methacrylate.

8. The pipeline pressure relief device according to any one of claims 1 to 6, characterized in that: The outer side of the sealing plate (4) is connected to a sealing rubber ring, and the sealing rubber ring is slidably connected to the interior of the housing (1).

9. The pipeline pressure relief device according to any one of claims 1 to 6, characterized in that: The water outlet trough (51) is provided with a dustproof net.

10. The pipeline pressure relief device according to any one of claims 1 to 6, characterized in that: The elastic component (3) comprises a spring.

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