Water flow pressure relief device and medium-high water head water supply system

Abstract

The utility model relates to the technical field of medium-high water head water supply pressure relief, in particular to a water flow pressure relief device and a medium-high water head water supply system.The water flow pressure relief device comprises a pressure relief pool, the pressure relief pool is provided with a closed inner cavity, and a pair of opposite sides of the inner cavity are connected with a water inlet pipe and a water outlet pipe respectively; the water baffle is located in the pressure relief pool, a pressure relief channel is defined by the water baffle and the inner wall of the pressure relief pool, and the pressure relief channel extends from the side where the water inlet pipe is located to the side where the water outlet pipe is located; according to the water flow pressure relief device, the water head pressure can be effectively reduced, safety and stability of pressure relief are guaranteed, and engineering reliability and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and pressure relief with medium and high water heads, in particular to a water flow pressure relief device and a water supply system with medium and high water heads. Background Art

[0002] Currently, domestic water supply and transmission projects with medium and high heads generally utilize buried or exposed pipe arrangements, characterized by steep inclinations and long lengths. During operation, the high flow and velocity of water in the pipes create significant head pressure on downstream hydraulic structures. A pipe burst poses a safety hazard, necessitating the installation of pressure relief devices to reduce head pressure and ensure smooth and safe operation of the water supply and transmission system. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the technical problem in the above-mentioned prior art that the downstream water flow pressure is relatively large when supplying water with medium and high heads, the present utility model is proposed.

[0005] The utility model aims to provide a water flow pressure relief device and a medium-high head water supply system.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a water flow pressure relief device, comprising a pressure relief tank, the pressure relief tank having a closed inner cavity, a pair of opposite sides of the inner cavity being respectively connected to a water inlet pipe and a water outlet pipe; a water baffle located inside the pressure relief tank, the water baffle and the inner wall of the pressure relief tank forming a pressure relief channel, and the pressure relief channel extending from the side where the water inlet pipe is located to the side where the water outlet pipe is located.

[0007] As a preferred solution of the water flow pressure relief device of the present invention, there are multiple water baffles, two adjacent water baffles are respectively located on the two inner walls of the other opposite sides of the inner cavity, and through holes are arranged on the water baffles.

[0008] As a preferred solution of the water flow pressure relief device of the utility model, the water baffle is integrally arranged on one side of the pressure relief tank, and there is a gap between the water baffle and the inner wall of the other side of the pressure relief tank.

[0009] As a preferred solution of the water flow pressure relief device of the utility model, the through holes are evenly distributed on the water retaining plate in a plum blossom pile pattern.

[0010] As a preferred solution of the water flow pressure relief device of the present invention, a sewage collecting trough is provided at the bottom of the pressure relief tank, and a sewage discharge pipe is provided on the sewage collecting trough.

[0011] As a preferred solution of the water flow pressure relief device of the present invention, a ventilation pipe is provided at the top of the pressure relief tank, and a liquid level gauge is provided at the top of the pressure relief tank on one side of the ventilation pipe.

[0012] As a preferred solution of the water flow pressure relief device of the present invention, an overflow hole is provided at the top of the pressure relief tank, and an overflow pipe is provided at the overflow hole.

[0013] As a preferred solution of the water flow pressure relief device of the utility model, wherein: a first gate valve and a flow and pressure regulating valve are provided on the water inlet pipe.

[0014] As a preferred solution of the water flow pressure relief device of the utility model, a second gate valve is provided on the water outlet pipe.

[0015] A medium-high head water supply system includes the above-mentioned water flow pressure relief device and a water supply pipe that transports water from top to bottom. A plurality of water flow pressure relief devices are arranged on the water supply pipe from top to bottom. The water inlet side of the water flow pressure relief device is connected to the water supply pipe upstream of it, and the water outlet side of the water flow pressure relief device is connected to the water supply pipe downstream of it.

[0016] The beneficial effects of a water flow pressure relief device of the present invention are: the water flow pressure relief device of the present application can effectively reduce the head pressure, ensure the safety and stability of pressure relief, and improve the reliability and safety of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 The overall structure of the water pressure relief device of this utility model is shown in FIG. Figure 1 .

[0019] Figure 2 The overall structure of the water pressure relief device of this utility model is shown in FIG. Figure 2 .

[0020] Figure 3 This is a schematic diagram of one structure of the sewage collecting tank in the utility model.

[0021] Figure 4 This is a schematic diagram of the layout structure of the through holes on the water retaining plate in the utility model.

[0022] Figure 5 This is a structural diagram of the medium to high head water supply system of the utility model.

[0023] Figure 6 This is a schematic diagram of the head pressure change when water flows through the multi-stage pressure relief channel in the utility model.

[0024] Figure 6 Among them, A is the change of water head pressure along the water supply pipeline when the above-mentioned water flow pressure relief device is not installed, and B is the change of water head pressure along the water supply pipeline when the above-mentioned water flow pressure relief device is installed. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1, reference Figure 1-4 , is the first embodiment of the present utility model, which provides a water flow pressure relief device, including,

[0029] The pressure relief tank 100 has a closed inner cavity 101, wherein a pair of opposite sides of the inner cavity 101 are respectively connected to an inlet pipe 102 and an outlet pipe 103;

[0030] The water baffle 200 is located inside the pressure relief tank 100. The water baffle 200 and the inner wall of the pressure relief tank 100 form a pressure relief channel 201. The pressure relief channel 201 extends from the water inlet pipe 102 on the side to the water outlet pipe 103 on the side.

[0031] The water flows into the inner cavity 101 of the pressure relief tank 100 from the water inlet pipe 102, then flows through the pressure relief channel 201 to the water outlet pipe 103, and finally flows out from the water outlet pipe 103. When the water flows through the pressure relief channel 201, it collides with the water baffle 200 and the side wall of the inner cavity 101, thereby reducing the water pressure and achieving the purpose of water pressure relief.

[0032] Furthermore, there are multiple water baffles 200 , and two adjacent water baffles 200 are respectively located on two inner walls of another pair of opposite sides of the inner cavity 101 , and through holes 202 are arranged on the water baffles 200 .

[0033] The water baffle 200 and the pressure relief tank 100 are integrally cast from reinforced concrete. The water baffle 200 extends from one side of the inner cavity 101 to the other side, but leaves a gap between the water baffle 200 and the other side of the inner cavity 101 for water to flow through. Among the multiple water baffles 200, two adjacent water baffles 200 are respectively located on the two side walls of the inner cavity 101, so that an S-shaped pressure relief channel 201 is formed between the multiple water baffles 200 and the inner wall of the inner cavity 101.

[0034] More importantly, through holes 202 are arranged on the water baffle 200. When water flows into one side of the water baffle 200, part of it continues to flow toward the outlet pipe 103 through the pressure relief channel 201, and part of it flows into the pressure relief channel 201 on the other side of the water baffle 200 through the through holes 202. The water flowing through the through holes 202 and the water in the pressure relief channel 201 mix, collide and form vortices with each other, which greatly plays a role in pressure relief and energy dissipation. The water flow after pressure relief can be regarded as free water head.

[0035] The upstream water flow pressure relief device can effectively reduce the water head pressure, ensure safe and stable pressure relief, and improve the reliability and safety of the project.

[0036] Furthermore, the water baffle 200 is integrally provided on one side of the pressure relief tank 100 , and a gap is provided between the water baffle 200 and the inner wall of the other side of the pressure relief tank 100 .

[0037] Furthermore, the through holes 202 are evenly distributed on the water retaining plate 200 in a plum blossom pile pattern.

[0038] The through holes 202 are arranged in a plum blossom pile pattern, and the intervals between adjacent through holes 202 are substantially the same, thereby ensuring the effect of water flows mixing and colliding with each other.

[0039] Example 2, reference Figure 1-4 , which is the second embodiment of the present invention. Different from the previous embodiment, a sewage collecting tank 101a is provided at the bottom of the pressure relief tank 100, and a sewage discharge pipe 101b is provided on the sewage collecting tank 101a.

[0040] The sewage collecting tank 101a is the bottom of the inner cavity 101 or a downward extension of the bottom of the inner cavity 101. Since the water flow velocity in the pressure relief tank 100 is much smaller than the water flow velocity at the water inlet end, the silt, sand and other impurities brought in by the water flow sink through natural sedimentation. The impurities collected in the sewage collecting tank 101a are discharged through the sewage pipe 101b and discharged to the sewage well at a regular time according to the amount of sediment. The location of the sewage well can be determined according to the actual terrain and geological conditions.

[0041] Furthermore, a ventilation pipe 101 c is provided at the top of the pressure relief tank 100 , and a liquid level gauge 101 d is provided at the top of the pressure relief tank 100 on one side of the ventilation pipe 101 c .

[0042] The ventilation pipe 101c connects the inner cavity 101 with the external atmosphere to prevent the internal pressure of the inner cavity 101 from being too high; the water level is measured by the liquid level meter 101d.

[0043] Furthermore, an overflow hole 101e is provided at the top of the pressure relief tank 100, and an overflow pipe 101f is provided at the overflow hole 101e.

[0044] The overflow hole 101e is connected to the overflow pipe 101f. During design, the overflow pipe 101f is always located on the downstream side of the slope and leads to a nearby ditch or low-lying land. It can provide irrigation water according to local farming conditions.

[0045] Furthermore, a first gate valve 101g and a flow and pressure regulating valve 101h are provided on the water inlet pipe 102 .

[0046] Furthermore, a second gate valve 101i is provided on the water outlet pipe 103 .

[0047] Example 3, reference Figure 1-6 , which is the third embodiment of the present utility model. Different from the previous embodiment, it is a medium-high head water supply system, including an upper water flow pressure relief device and a water supply pipe 300 for transporting water from top to bottom. A plurality of water flow pressure relief devices are arranged on the water supply pipe 300 from top to bottom. The water inlet side of the water flow pressure relief device is connected to the water supply pipe 300 upstream thereof, and the water outlet side of the water flow pressure relief device is connected to the water supply pipe 300 downstream thereof.

[0048] Water with medium and high head is supplied to the downstream through the water supply pipe 300. A plurality of upstream water pressure relief devices are arranged on the water supply system of the entire water supply pipe 300 to effectively reduce the water head pressure and improve the reliability and safety of the project.

[0049] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A water pressure relief device, characterized in that: include, A pressure relief tank (100), the pressure relief tank (100) having a closed inner cavity (101), wherein a pair of opposite sides of the inner cavity (101) are respectively connected to a water inlet pipe (102) and a water outlet pipe (103); A water baffle (200) is located inside the pressure relief tank (100), and the water baffle (200) and the inner wall of the pressure relief tank (100) form a pressure relief channel (201). The pressure relief channel (201) extends from the side where the water inlet pipe (102) is located to the side where the water outlet pipe (103) is located.

2. The water pressure relief device according to claim 1, wherein: There are multiple water baffles (200), and two adjacent water baffles (200) are respectively located on two inner walls on the other opposite sides of the inner cavity (101), and through holes (202) are arranged on the water baffles (200).

3. The water pressure relief device according to claim 2, wherein: The water baffle (200) is integrally arranged on one side of the pressure relief tank (100), and a gap is provided between the water baffle (200) and the inner wall of the other side of the pressure relief tank (100).

4. The water pressure relief device according to claim 2 or 3, characterized in that: The through holes (202) are evenly distributed on the water retaining plate (200) in a plum blossom pile pattern.

5. The water pressure relief device according to claim 4, characterized in that: A sewage collecting trough (101a) is provided at the bottom of the pressure relief tank (100), and a sewage discharge pipe (101b) is provided on the sewage collecting trough (101a).

6. The water pressure relief device according to claim 5, characterized in that: A ventilation pipe (101c) is provided at the top of the pressure relief tank (100), and a liquid level gauge (101d) is provided at the top of the pressure relief tank on one side of the ventilation pipe (101c).

7. The water pressure relief device according to claim 6, characterized in that: An overflow hole (101e) is provided at the top of the pressure relief tank (100), and an overflow pipe (101f) is provided at the overflow hole (101e).

8. The water pressure relief device according to claim 7, wherein: The water inlet pipe (102) is provided with a first gate valve (101g) and a flow and pressure regulating valve (101h).

9. The water pressure relief device according to claim 8, characterized in that: A second gate valve (101i) is provided on the water outlet pipe (103).

10. A medium-high head water supply system, characterized by: It comprises the water flow pressure relief device according to any one of claims 1 to 9, and a water supply pipe (300) for transporting water from top to bottom, wherein a plurality of water flow pressure relief devices are arranged on the water supply pipe (300) from top to bottom, the water inlet side of the water flow pressure relief device is connected to the water supply pipe (300) upstream thereof, and the water outlet side of the water flow pressure relief device is connected to the water supply pipe (300) downstream thereof.

Images