Water supply structure of self-priming pump

Abstract

The utility model relates to a self priming pump technical field especially, it relates to a kind of self priming pump water supply structure, including the water tank main body of being set to the one side of pump body, the front end of water tank main body is equipped with water inlet, still include L type water inlet pipe, one end of L type water inlet pipe is connected with water inlet, one-way valve is arranged between L type water inlet pipe and water inlet, one-way valve position is fixed by mounting mechanism, start pump body control L type water inlet pipe to extract underground water, water is extracted to water tank main body by L type water inlet pipe, the water to water tank main body is handled by using one-way valve against back, avoid the water in water tank main body backflow discharge, to effectively prevent self priming pump water tank drainage;The utility model prevents self priming pump water tank drainage by the way of water flow one-way check, avoid the frequent failure caused by self priming pump because of not sucking water, reduce the machine seal consumption and the workload of repair personnel, save routine maintenance cost, to ensure the stable operation of mine dewatering water treatment system.

Description

Technical Field

[0001] This utility model relates to the field of self-priming pump technology, and in particular to a self-priming pump water supply structure. Background Technology

[0002] Self-priming pumps are key equipment used in mining industries such as coal mines and metal mines to remove underground water (i.e., "drainage water"). Their core feature is their "self-priming" capability, meaning that the pump can automatically draw up and discharge underground water below the pump centerline without filling the suction pipe and pump casing with water before starting.

[0003] As the installation height of the self-priming pump increases, the siphon effect can cause the water tank of the self-priming pump to run out of water. If the water tank is empty, the self-priming pump will not be able to draw water, which may lead to frequent dry wear of the mechanical seal of the self-priming pump and eventually burn it out. This requires shutdown for maintenance, which is inconvenient, costly, time-consuming and labor-intensive, and affects the stable operation of the entire water treatment system.

[0004] Therefore, to address the issue of existing self-priming pumps running dry due to insufficient water storage in the pump tank caused by excessive installation height, a new water supply structure for the self-priming pump can be designed. This structure prevents the self-priming pump tank from draining by implementing a one-way check valve, thus avoiding frequent malfunctions caused by the pump's inability to draw water. This reduces the consumption of mechanical seals and the workload of maintenance personnel, saving on daily maintenance costs and ensuring the stable operation of the mine drainage water treatment system. Utility Model Content

[0005] To overcome the problem that increasing the installation height of most self-priming pumps can cause water shortage in the pump tank, which may lead to frequent dry friction and eventual burnout of the pump's mechanical seal, requiring shutdown for maintenance, which is inconvenient and affects the stable operation of the entire water treatment system, this utility model is proposed.

[0006] The technical solution of this utility model is as follows: a self-priming pump water supply structure, including a water tank body disposed on one side of the pump body, an inlet at the front end of the water tank body, an L-shaped inlet pipe and an installation mechanism, one end of the L-shaped inlet pipe being connected to the inlet, a one-way valve being disposed between the L-shaped inlet pipe and the inlet, and the position of the one-way valve being fixed by the installation mechanism.

[0007] Preferably, by setting an installation mechanism to fix the one-way valve between the L-shaped water inlet pipe and the water inlet, the pump body is started to control the L-shaped water inlet pipe to draw water from the mine. The water is drawn into the water tank body through the L-shaped water inlet pipe. The one-way valve is used to prevent the water flowing into the water tank body from flowing back and being discharged from the water tank body. This prevents the self-priming pump from draining water from the water tank, avoids frequent failures of the self-priming pump due to failure to draw water, reduces the consumption of mechanical seals and the workload of maintenance personnel, saves daily maintenance costs, and ensures the stable operation of the mine drainage water treatment system.

[0008] Preferably, the installation mechanism includes a connecting pipe, one end of which is connected to the inlet flange, and the other end of which is connected to the flange at one end of the L-shaped inlet pipe. A one-way valve is located in the middle of the connecting pipe.

[0009] Preferably, the installation mechanism also includes a sealing groove and a sealing ring. A sealing groove is provided on the inside of the flange at the water inlet and one end of the L-shaped water inlet pipe, and a sealing ring is provided on the inside of the flange at both ends of the connecting pipe.

[0010] Preferably, the sealing ring is embedded in the sealing groove to ensure the sealing of the connection between the pipes and prevent leakage.

[0011] Preferably, a level gauge is installed on the inner side of the connecting pipe, between the water inlet and the check valve, and the display dial of the level gauge is located on the outer side of the connecting pipe. The level gauge is used to detect the liquid level in the connecting pipe behind the check valve.

[0012] Preferably, a warning light is installed on the outside of the connecting pipe, and the warning light is electrically connected to the level gauge.

[0013] Preferably, the top flange of the water tank body is connected to a water outlet pipe.

[0014] The beneficial effects of this utility model are:

[0015] When using a self-priming pump, fix the check valve between the L-shaped inlet pipe and the inlet. Start the pump to control the L-shaped inlet pipe to draw water from the well. The water is drawn into the water tank body through the L-shaped inlet pipe. Use the check valve to prevent backflow of water into the water tank body, thus preventing the water in the water tank body from flowing back out. This prevents the self-priming pump water tank from draining, avoiding frequent failures caused by the self-priming pump failing to draw water. This solves the problem that most self-priming pumps, when installed at a higher height, will cause water shortage in the self-priming pump water tank, which may lead to frequent dry wear and eventual burnout of the self-priming pump mechanical seal, requiring shutdown for maintenance, making inspection and maintenance inconvenient, and affecting the stable operation of the entire water treatment system. This ensures the stable operation of the mine drainage water treatment system. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a self-priming pump water supply structure according to this utility model.

[0017] Figure 2 The diagram shows a three-dimensional structural representation of the pump body, water tank body, and water pipe of a self-priming pump water supply structure according to this utility model.

[0018] Figure 3 The diagram shows a three-dimensional structural schematic of the pump body and water tank of a self-priming pump water supply structure according to this utility model.

[0019] Figure 4The diagram shown is a three-dimensional structural schematic of the connecting pipe of a self-priming pump water supply structure according to this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural diagram of the L-shaped water inlet pipe of a self-priming pump water supply structure according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Pump body; 2. Water tank body; 201. Outlet pipe; 3. Inlet; 4. L-shaped inlet pipe; 5. Check valve; 501. Connecting pipe; 502. Sealing groove; 503. Sealing ring; 6. Level gauge; 601. Warning light. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1 and Figure 3 This utility model provides an embodiment: a self-priming pump water supply structure, including a water tank body 2 disposed on one side of the pump body 1, an inlet 3 opened at the front end of the water tank body 2, and also including an L-shaped inlet pipe 4 and an installation mechanism. One end of the L-shaped inlet pipe 4 is connected to the inlet 3. A one-way valve 5 is provided between the L-shaped inlet pipe 4 and the inlet 3. The position of the one-way valve 5 is fixed by the installation mechanism. The one-way valve 5 is used to prevent the water tank body 2 from draining, so as to ensure that there is always water in the water tank body 2.

[0024] Please see Figure 4 and Figure 5 In this embodiment, the installation mechanism includes a connecting pipe 501, a sealing groove 502, and a sealing ring 503. One end of the connecting pipe 501 is connected to the flange of the inlet 3, and the other end of the connecting pipe 501 is connected to the flange of one end of the L-shaped inlet pipe 4. A one-way valve 5 is located in the middle of the connecting pipe 501. A sealing groove 502 is provided inside the flange at the inlet 3 and one end of the L-shaped inlet pipe 4. A sealing ring 503 is provided inside the flange at both ends of the connecting pipe 501. When the connecting pipe 501 is installed, the sealing ring 503 is embedded in the sealing groove 502. Inside 2, the sealing ring 503 ensures the sealing of the connection of the connecting pipe 501 to prevent leakage. The one-way valve 5 is fixed in position by the connecting pipe 501. The flange of the connecting pipe 501 is used to connect the water inlet 3 and the L-shaped water inlet pipe 4, so that the one-way valve 5 can be conveniently installed and fixed between the water inlet 3 and the L-shaped water inlet pipe 4. When installing the connecting pipe 501, the sealing ring 503 is embedded in the sealing groove 502. The sealing ring 503 ensures the sealing of the flange connection at both ends of the connecting pipe 501 to prevent water from leaking from the joint during pumping operation.

[0025] A level gauge 6 is installed inside the connecting pipe 501, between the inlet 3 and the check valve 5. The display dial of the level gauge 6 is located outside the connecting pipe 501. The level gauge 6 detects the liquid level in the connecting pipe 501 behind the check valve 5. An alarm light 601 is installed outside the connecting pipe 501, which is electrically connected to the level gauge 6. When the level gauge 6 detects that the liquid level in the connecting pipe 501 has dropped to the set height, the alarm light 601 triggers an alarm flashing. The level gauge 6 monitors the liquid level in the connecting pipe 501 near the inlet 3 in real time. When the liquid level is detected to be lower than the set value, the alarm light 601 flashes to prompt the operator to stop the machine for maintenance. This indicates that there is not enough water in the water tank body 2. At this time, the check valve 5 may be malfunctioning, causing the water in the water tank body 2 to flow back and be discharged.

[0026] Please see Figure 1 and Figure 2 The top flange of the water tank body 2 is connected to the water outlet pipe 201, through which the water pumped by the pump body 1 is discharged from the water tank body 2.

[0027] Before starting the self-priming pump, fix the bottom end of the L-shaped inlet pipe 4 to the outlet, and fix the connecting pipe 501 between the L-shaped inlet pipe 4 and the inlet 3 of the water tank body 2 with a flange, so that the sealing rings 503 at both ends of the connecting pipe 501 are embedded in the sealing groove 502.

[0028] When the self-priming pump is started, the L-shaped inlet pipe 4 draws water from the well. The water is pumped through the L-shaped inlet pipe 4 to the connecting pipe 501. The one-way valve 5 in the connecting pipe 501 prevents backflow of the water flowing to the main body of the water tank 2. The water flows into the main body of the water tank 2 through the inlet 3 and finally, it is discharged from the outlet pipe 201 at the top of the main body of the water tank 2. At the same time, the liquid level gauge 6 monitors the liquid level in the connecting pipe 501 near the inlet 3 in real time. Due to the action of the one-way valve 5, the water is stored in the main body of the water tank 2. When the liquid level gauge 6 detects that the liquid level is lower than the set value, the warning light 601 starts to flash, thereby prompting the operator to stop the machine for maintenance.

[0029] Through the above steps, the one-way valve 5 is fixed between the L-shaped water inlet pipe 4 and the water inlet 3 by setting up the installation mechanism. The pump body 1 is started to control the L-shaped water inlet pipe 4 to draw water from the well. The water is drawn into the water tank body 2 through the L-shaped water inlet pipe 4. The one-way valve 5 is used to prevent the water flowing into the water tank body 2 from flowing back and being discharged, thereby preventing the self-priming pump water tank from draining, avoiding frequent failures of the self-priming pump due to failure to draw water, reducing the consumption of mechanical seals and the workload of maintenance personnel, and saving daily maintenance costs.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A self-priming pump water supply structure, comprising a water tank body (2) disposed on one side of the pump body (1), wherein a water inlet (3) is provided at the front end of the water tank body (2), characterized in that: It also includes an L-shaped water inlet pipe (4) and an installation mechanism. One end of the L-shaped water inlet pipe (4) is connected to the water inlet (3). A one-way valve (5) is provided between the L-shaped water inlet pipe (4) and the water inlet (3). The position of the one-way valve (5) is fixed by the installation mechanism.

2. The self-priming pump water supply structure according to claim 1, characterized in that: The installation mechanism includes a connecting pipe (501), one end of which is connected to the flange of the inlet (3), and the other end of which is connected to the flange of one end of the L-shaped inlet pipe (4). A one-way valve (5) is located in the middle of the connecting pipe (501).

3. The self-priming pump water supply structure according to claim 2, characterized in that: The installation mechanism also includes a sealing groove (502) and a sealing ring (503). A sealing groove (502) is provided on the inside of the flange at the inlet (3) and one end of the L-shaped inlet pipe (4), and a sealing ring (503) is provided on the inside of the flange at both ends of the connecting pipe (501).

4. The self-priming pump water supply structure according to claim 3, characterized in that: The sealing ring (503) is embedded in the sealing groove (502) to ensure the sealing of the connection of the connecting pipe (501).

5. The self-priming pump water supply structure according to claim 2, characterized in that: A level gauge (6) is installed on the inner side of the connecting pipe (501). The level gauge (6) is located between the water inlet (3) and the check valve (5). The display dial of the level gauge (6) is located on the outer side of the connecting pipe (501). The level gauge (6) is used to detect the liquid level in the connecting pipe (501) behind the check valve (5).

6. The self-priming pump water supply structure according to claim 5, characterized in that: A warning light (601) is provided on the outside of the connecting pipe (501), and the warning light (601) is electrically connected to the level gauge (6).

7. The self-priming pump water supply structure according to claim 1, characterized in that: The top flange of the water tank body (2) is connected to the water outlet pipe (201).

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