Safety relief valve for water conservancy pump station

Abstract

The utility model relates to the technical field of water conservancy pump stations, in particular to a safety relief valve of a water conservancy pump station, which comprises a pump machine main body, one end of the pump machine main body is connected with a water pumping joint, one end of the pump machine main body is connected with a drainage joint, and the water pumping joint is connected with a water pumping pipe main body. A pressure relief mechanism facilitating pressure relief is arranged on the water pumping pipe body, the pressure relief connector is fixedly connected to one side of the water pumping pipe body, the pressure relief pipe is fixedly connected to the outer end of the pressure relief connector, the pressure relief valve body is rotationally arranged on the pressure relief pipe, and the flexible water pumping pipe is fixedly connected to the bottom end of the pressure relief pipe. According to the safety pressure relief valve for the water conservancy pump station, the pressure relief pipe is connected to the outer end of the pressure relief connector fixedly connected to the water pumping pipe body, the pressure relief valve body is rotationally connected to the pressure relief pipe, and meanwhile the flexible water pumping pipe and the second filter cylinder are connected to the bottom end of the pressure relief pipe, so that quick pressure relief is facilitated when the front end of the water pumping pipe body is blocked and the internal negative pressure is high.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy pumping stations, in particular to a safety pressure relief valve for a water conservancy pumping station. Background Art

[0002] A hydraulic pumping station is a type of hydraulic engineering facility primarily used to transport water from one location to another or to raise water levels to meet the needs of various water resource utilizations, such as irrigation, drainage, and water supply. It is a system composed of electromechanical equipment (such as pumps) and various hydraulic structures (such as inlet and outlet tanks).

[0003] The above device does not have a structure for rapid pressure relief in the event of blockage in the pump station pipe when in use. As a result, when the existing pump station is in use, if the front end of the water suction pipe and the filter cartridge are severely blocked, negative pressure will be formed in the water suction pipe. After the water pump is directly turned off, high-level water or air at the water outlet will directly rush into the pump or pipe under the action of gravity or negative pressure, which can easily cause damage to the equipment. Based on the shortcomings of the existing technology, the utility model designs a safety pressure relief valve for a water conservancy pump station. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a safety pressure relief valve for a water conservancy pump station, which has the advantage of rapid pressure relief in the event of blockage in a pump station pipe.

[0005] The utility model provides the following technical solution: a safety pressure relief valve for a water conservancy pump station, comprising a pump body, one end of the pump body being connected to a water pumping joint, one end of the pump body being connected to a water discharge joint, the water pumping joint being connected to a water pumping pipe body, and the water pumping pipe body being provided with a pressure relief mechanism for facilitating pressure relief;

[0006] The pressure relief mechanism includes a pressure relief joint, a pressure relief pipe, a pressure relief valve body, a flexible water pumping pipe, a second filter cartridge, a connecting frame and a floating air bag. The pressure relief joint is fixedly connected to one side of the water pumping pipe body, the pressure relief pipe is fixedly connected to the outer end of the pressure relief joint, the pressure relief valve body is rotatably set on the pressure relief pipe, the flexible water pumping pipe is fixedly connected to the bottom end of the pressure relief pipe, the second filter cartridge is fixedly connected to the bottom end of the flexible water pumping pipe, the connecting frame is fixedly connected to the flexible water pumping pipe, and the floating air bag is fixedly connected to the top of the connecting frame.

[0007] As an optimal technical solution of the present invention, support seats are provided on both sides of the pump body, one side of the pump body is rotatably connected to a driving wheel, the other side of the pump body is rotatably connected to a counterweight wheel, and the bottom of the support seat is fixedly connected to a base.

[0008] As a preferred technical solution of the present invention, a first filter cartridge is fixedly connected to the front end of the water suction pipe body.

[0009] As a preferred technical solution of the present invention, the driving wheel and the counterweight wheel are connected to the pump body via a transmission shaft, and the transmission shaft is rotatably connected to the interior of the support seat.

[0010] As a preferred technical solution of the present invention, the water outlet direction of the pressure relief joint is inclined toward the pump body.

[0011] As a preferred technical solution of the present invention, the floating airbag floats on the water surface of the pumping station.

[0012] As a preferred technical solution of the present invention, the bottom end of the flexible water pumping pipe and the second filter cartridge are arranged below the floating airbag, and the bottom end of the flexible water pumping pipe and the second filter cartridge are always below the water surface.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The safety pressure relief valve of a water conservancy pump station is used to prevent water from entering the water pump main body when the front end of the water pump main body or the first filter cartridge is blocked, resulting in water being unable to enter the water pump main body. The pump main body continues to work and causes a strong negative pressure in the water pump main body. At this time, the pressure relief valve body is activated to connect the pressure relief joint with the pressure relief pipe, and the connected pressure relief pipe is also connected to the chamber of the water pump main body, so that external water is drawn into the interior of the water pump main body through the second filter cartridge and the flexible water pump main body to relieve the negative pressure and simultaneously enter the interior of the pump main body for cooling treatment. Since the floating air bag is connected to the front end of the flexible water pump main body through the connecting frame and the floating air bag floats on the water surface, the second filter cartridge and the flexible water pump main body can always be below the water surface without affecting the water pumping, and can effectively avoid contact with silt, weeds or other debris at the bottom of the pumping channel to cause blockage. The device is convenient for quickly relieving pressure in the water pump main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the pump station and pumping pipe connection structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the pump machine of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the pressure relief mechanism of the utility model.

[0019] In the figure: 1. Pump body; 101. Water suction joint; 102. Drain joint; 103. Support seat; 104. Drive wheel; 105. Counterweight wheel; 106. Base; 2. Water suction pipe body; 201. First filter cartridge; 3. Pressure relief mechanism; 301. Pressure relief joint; 302. Pressure relief pipe; 303. Pressure relief valve body; 304. Flexible water suction pipe; 305. Second filter cartridge; 306. Connecting frame; 307. Floating airbag. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4 A safety pressure relief valve for a water conservancy pumping station includes a pump body 1, one end of the pump body 1 is connected to a water suction joint 101, one end of the pump body 1 is connected to a water discharge joint 102, a pressure relief mechanism 3 for facilitating pressure relief is provided on the water suction pipe main body 2, support seats 103 are provided on both sides of the pump body 1, one side of the pump body 1 is rotatably connected to a driving wheel 104, the other side of the pump body 1 is rotatably connected to a counterweight wheel 105, the bottom of the support seat 103 is fixedly connected to a base 106, the driving wheel 104 and the counterweight wheel 105 are connected to the pump body 1 through a transmission shaft, and the transmission shaft is rotatably connected to the inside of the support seat 103.

[0022] See also Figure 3-4 , pressure relief mechanism 3, the pressure relief mechanism 3 includes a pressure relief joint 301, a pressure relief pipe 302, a pressure relief valve body 303, a flexible water pumping pipe 304, a second filter cartridge 305, a connecting frame 306 and a floating air bag 307, the pressure relief joint 301 is fixedly connected to one side of the water pumping pipe body 2, the pressure relief pipe 302 is fixedly connected to the outer end of the pressure relief joint 301, the pressure relief valve body 303 is rotatably set on the pressure relief pipe 302, the flexible water pumping pipe 304 is fixedly connected to the bottom end of the pressure relief pipe 302, the second filter cartridge 3 05 is fixedly connected to the bottom end of the flexible water pumping pipe 304, the connecting frame 306 is fixedly connected to the flexible water pumping pipe 304, the floating air bag 307 is fixedly connected to the top of the connecting frame 306, the water outlet direction of the pressure relief joint 301 is inclined toward the pump body 1, the floating air bag 307 floats on the water surface of the pump station, the bottom end of the flexible water pumping pipe 304 and the second filter cartridge 305 are arranged below the floating air bag 307, and the bottom end of the flexible water pumping pipe 304 and the second filter cartridge 305 are always below the water surface.

[0023] By providing a pressure relief joint 301, a pressure relief pipe 302, a flexible water pumping pipe 304 and a second filter cartridge 305, water can be quickly pumped in for pressure relief when negative pressure increases due to blockage in the water pumping pipe main body 2. By providing a pressure relief valve body 303, water will not be pumped from the pressure relief joint 301, the pressure relief pipe 302 and the flexible water pumping pipe 304 when the water pumping pipe main body 2 is operating normally. By providing a flexible water pumping pipe 304, a connecting frame 306 and a floating air bag 307, the positions of the bottom end of the flexible water pumping pipe 304 and the second filter cartridge 305 can be adjusted according to the water level, so that the flexible water pumping pipe 304 and the second filter cartridge 305 are always below the water surface waiting for water intake and pressure relief.

[0024] See also Figure 1 The water pumping joint 101 is connected to the water pumping pipe body 2, and the front end of the water pumping pipe body 2 is fixedly connected to the first filter cartridge 201.

[0025] By setting the water pumping pipe body 2, water can be pumped into the irrigation channel when the pump body 1 is working. By setting the first filter cartridge 201, a large amount of silt, aquatic plants or fish can be effectively prevented from being sucked into the pipe during the pumping operation.

[0026] Working principle: when a safety pressure relief valve of a water conservancy pumping station is used, in the initial state, first, the water pumping joint 101 and the water discharge joint 102 are arranged on the front and rear sides of the pump body 1, and the two ends of the transmission shaft rotatably connected in the pump body 1 are respectively connected to the driving wheel 104 and the counterweight wheel 105, and at the same time, the water pumping joint 101 is connected to the water pumping pipe body 2 to facilitate the pumping operation, and the outer end of the pressure relief joint 301 fixedly connected to the water pumping pipe body 2 is connected to the pressure relief pipe 302, and the pressure relief valve body 303 is rotatably connected to the pressure relief pipe 302, while the bottom end is connected to the flexible water pumping pipe 304 and the second filter cartridge 305, so as to quickly release the pressure when the front end of the water pumping pipe body 2 is blocked and the internal negative pressure is strong;

[0027] When it is necessary to quickly relieve the pressure in the water pump body 2, first, when the front end of the water pump body 2 or the first filter cartridge 201 is blocked and water cannot enter the water pump body 2, the pump body 1 continues to work and causes a strong negative pressure in the water pump body 2. At this time, the pressure relief valve body 303 is activated to connect the pressure relief joint 301 with the pressure relief pipe 302, and the connected pressure relief pipe 302 is also connected to the chamber of the water pump body 2, and the external water is drawn into the water pump body 2 through the second filter cartridge 305 and the flexible water pumping pipe 304. The negative pressure inside the water pipe body 2 is relieved and at the same time, the water enters the interior of the pump body 1 for cooling treatment. Since the floating air bag 307 is connected to the front end of the flexible water pumping pipe 304 through the connecting frame 306, and the floating air bag 307 floats on the water surface, the second filter cartridge 305 and the flexible water pumping pipe 304 can always be below the water surface without affecting the water pumping, while effectively avoiding contact with silt, weeds or other debris at the bottom of the pumping channel to cause blockage. This device facilitates rapid pressure relief in the water pumping pipe body 2.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pump station safety pressure relief valve, comprising a pump body (1), characterized in that: One end of the pump body (1) is connected to a water pumping joint (101), one end of the pump body (1) is connected to a water discharge joint (102), the water pumping joint (101) is connected to a water pumping pipe body (2), and the water pumping pipe body (2) is provided with a pressure relief mechanism (3) for facilitating pressure relief; A pressure relief mechanism (3) comprising a pressure relief joint (301), a pressure relief pipe (302), a pressure relief valve body (303), a flexible water pumping pipe (304), a second filter cartridge (305), a connecting frame (306) and a floating air bag (307); the pressure relief joint (301) is fixedly connected to one side of the water pumping pipe body (2); the pressure relief pipe (302) is fixedly connected to the outer end of the pressure relief joint (301); the pressure relief valve body (303) is rotatably arranged on the pressure relief pipe (302); the flexible water pumping pipe (304) is fixedly connected to the bottom end of the pressure relief pipe (302); the second filter cartridge (305) is fixedly connected to the bottom end of the flexible water pumping pipe (304); the connecting frame (306) is fixedly connected to the flexible water pumping pipe (304); and the floating air bag (307) is fixedly connected to the top of the connecting frame (306).

2. A hydraulic pump station safety pressure relief valve according to claim 1, characterized in that: Support seats (103) are provided on both sides of the pump body (1); one side of the pump body (1) is rotatably connected to a driving wheel (104); the other side of the pump body (1) is rotatably connected to a counterweight wheel (105); and the bottom of the support seat (103) is fixedly connected to a base (106).

3. A hydraulic pump station safety pressure relief valve according to claim 1, characterized in that: The front end of the water pumping pipe body (2) is fixedly connected to a first filter cartridge (201).

4. A hydraulic pump station safety pressure relief valve according to claim 2, characterized in that: The driving wheel (104) and the counterweight wheel (105) are connected to the pump body (1) via a transmission shaft, and the transmission shaft is rotatably connected to the interior of the support seat (103).

5. A hydraulic pump station safety pressure relief valve according to claim 1, characterized in that: The water outlet of the pressure relief joint (301) is arranged to be inclined toward the pump body (1).

6. A hydraulic pump station safety pressure relief valve according to claim 1, characterized in that: The floating air bag (307) floats on the water surface of the pump station.

7. A hydraulic pump station safety pressure relief valve according to claim 1, characterized in that: The bottom end of the flexible water pumping pipe (304) and the second filter cartridge (305) are arranged below the floating air bag (307), and the bottom end of the flexible water pumping pipe (304) and the second filter cartridge (305) are always below the water surface.

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