Automatic water feeding device for electric ball valve of spray pump

Abstract

This utility model relates to the field of automatic water supply technology, and in particular to an automatic water supply device for a spray pump using an electric ball valve. It includes a level sensor, a controller, and an electric ball valve body. The level sensor is installed on the top of the inner wall of the spray water tank. The first inlet flange of the spray water tank is connected to the electric ball valve body. The electric ball valve body controls the opening or closing of the valve through a signal connection between the controller and the level sensor. This utility model monitors the water level in the spray water tank using the level sensor. When the water level in the spray water tank is below 40%, the level sensor transmits data to the controller, which then controls the electric ball valve to open and automatically supply water to the tank. When the water level in the tank is above 80%, the electric ball valve closes, and the water supply to the tank stops. This device reduces the labor intensity of operators through automatic water supply and effectively prevents problems such as poor dust removal effect or overflow due to excessive water level caused by insufficient water supply.

Description

Technical Field

[0001] This utility model relates to the field of automatic water supply technology, and in particular to an automatic water supply device for a spray pump with an electric ball valve. Background Technology

[0002] With the gradual increase in the level of mechanization and the continuous increase in mining intensity in underground coal mines, the resulting dust problem has become increasingly serious. As the place with the largest dust generation, the fully mechanized mining face requires spray dust suppression due to the complexity and special nature of its environment. The spray pump is a key piece of equipment for cooling and dust suppression and needs to be continuously supplied with water to ensure normal operation.

[0003] Traditional water filling operations require manual operation by staff. They control the water flow by observing the water tank level and opening and closing the shut-off valve. This prevents water supply from being insufficient when the water level is too low, which would affect the spray pump and result in poor dust removal. On the other hand, if the water level is too high, the clean water will overflow, wasting water resources and causing water accumulation on the road. During the water filling process, staff need to constantly open and close the shut-off valve to control the water flow, which increases their workload. Furthermore, manual operation lacks precision and relies on guesswork based on experience, affecting the efficiency of water filling.

[0004] Therefore, in view of the fact that the existing spray pump water filling device requires frequent manual operation, which increases the workload, and that the accuracy of visual observation of the water tank level is insufficient, an automatic water filling device with an electric ball valve for the spray pump can be designed. By adding an electric ball valve, the water level is monitored by a liquid level sensor, and the electric ball valve is opened or closed to fill the water tank, reducing labor intensity and avoiding water waste. Utility Model Content

[0005] To overcome the problems of most spray pump water supply devices being manually operated, increasing the workload of operators, and low accuracy of visual water level observation.

[0006] The technical solution of this utility model is as follows: an automatic water supply device for an electric ball valve of a spray pump, comprising a liquid level sensor, a controller, and an electric ball valve body. The liquid level sensor is installed on the top of the inner wall of the spray water tank. The first inlet flange of the spray water tank is connected to the electric ball valve body. The electric ball valve body controls the opening or closing of the valve through a signal connection between the controller and the liquid level sensor. A Y-type filter is connected to the flange at the other end of the electric ball valve body to intercept impurities in the pipeline from entering the spray pump. A check mechanism consisting of a valve body, a second inlet, a valve disc, and a sealing ring is connected to the flange at the other end of the Y-type filter. A valve disc is provided in the valve body near the second inlet to block the second inlet. A sealing ring is attached to the circumference of the valve disc.

[0007] Preferably, the valve disc is a butterfly valve disc, and a valve seat is fixedly connected inside the valve body near the second water inlet. A pin is fixedly connected to the inner wall of the valve seat radially.

[0008] Preferably, the device also includes a torsion spring, with butterfly valve discs rotatably connected to both ends of the pin. The butterfly valve discs are opened or closed by the torsion spring around the pin.

[0009] Preferably, the valve disc is a disc valve disc, and a fixing component is fixedly connected to the upper part of the valve body near the second water inlet. A rotating shaft is rotatably connected inside the fixing component, and a disc valve disc is fixedly connected to the side wall of the rotating shaft.

[0010] Preferably, a damping system is rotatably connected to the side of the disc valve far from the second inlet, and the other end of the damping system is rotatably connected to the inner wall of the valve body.

[0011] The beneficial effects of this utility model are: 1. Compared to traditional spray pump water supply devices, this device monitors the water level in the spray tank using a level sensor. When the water level in the tank is below 40%, the sensor transmits the data to the controller, which then operates the electric ball valve to open and automatically supply water to the tank. When the water level in the tank is above 80%, the electric ball valve closes, and the water supply stops. This device reduces the workload of operators by automatically supplying water and effectively prevents problems such as poor dust removal effect or overflow due to insufficient water supply. 2. By adding a check valve, the problem of water hammer effect caused by the sudden opening or closing of the electric ball valve when the spray tank is automatically filled with water can be effectively alleviated. This is because the water flow velocity changes abruptly when the electric ball valve suddenly opens or closes, causing the hydraulic pressure to reach its maximum. The valve disc blocks the second inlet, controls the flow rate, and prevents the impact of backflow, effectively reducing the impact of water flow on the pipe wall and valve. Attached Figure Description

[0012] Figure 1 The diagram shown is a three-dimensional structural schematic of the automatic water supply device for the electric ball valve of the spray pump of this utility model. Figure 2 The diagram shown is a three-dimensional structural schematic of the liquid level sensor of the automatic water supply device for the electric ball valve of the spray pump of this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of Embodiment 1 of the automatic water supply device for the electric ball valve of the spray pump of this utility model. Figure 4 The diagram shown is a three-dimensional structural schematic of Embodiment 2 of the automatic water supply device for the electric ball valve of the spray pump of this utility model. Figure 5 The diagram shown is a three-dimensional structural schematic of Embodiment 3 of the automatic water supply device for the electric ball valve of the spray pump of this utility model.

[0013] Explanation of reference numerals in the attached drawings: 1. Spray water tank; 101. First water inlet; 102. Liquid level sensor; 103. Controller; 2. Electric ball valve body; 3. Y-type filter; 4. Valve body; 401. Second water inlet; 402. Disc valve disc; 403. Sealing ring; 404. Rotating shaft; 405. Fixing component; 406. Damping system; 407. Valve seat; 408. Butterfly valve disc; 409. Torsion spring; 410. Pin. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Example 1 Please see Figures 1-3 This utility model provides an embodiment: an automatic water supply device for an electric ball valve of a spray pump, including a liquid level sensor 102, a controller 103 and an electric ball valve body 2. The liquid level sensor 102 is installed on the top of the inner wall of the spray water tank 1. The first water inlet 101 of the spray water tank 1 is flanged to the electric ball valve body 2. The electric ball valve body 2 controls the valve to open or close through the signal connection between the controller 103 and the liquid level sensor 102. The other end flange of the electric ball valve body 2 is connected to a Y-type filter 3, which is used to intercept pipeline impurities from entering the spray pump.

[0016] The controller 103 has a preset water level of less than 40% as the low water level start point and a water level of more than 80% as the high water level stop point. The controller receives the real-time water level and compares it with these two preset values. Because the spray pump disperses the liquid into tiny sprays in the field, it requires high water quality. Therefore, a Y-type filter 3 is needed to filter impurities entering the spray tank 1 to prevent clogging of the spray pump. The spray pump is connected to the outlet of the spray water tank 1. When the liquid level sensor 102 transmits data to the controller 103 in real time, and the controller 103 determines that the water level in the spray water tank 1 is lower than the low water level start point, it sends an opening signal to the electric ball valve body 2. The electric ball valve body 2 opens, allowing water to flow through the Y-type filter 3 into the spray water tank 1. When the controller 103 determines that the water level in the spray water tank 1 is higher than the high water level stop point, it cuts off the opening signal of the electric ball valve body 2, and the electric ball valve body 2 closes, stopping the water supply to the spray water tank 1.

[0017] Furthermore, the other end flange of the Y-type filter 3 is connected to a check mechanism consisting of a valve body 4, a second inlet 401, a valve disc, and a sealing ring 403. A valve disc is provided inside the valve body 4 near the second inlet 401 to block the second inlet 401, and a sealing ring 403 is pasted on the valve disc around its circumference.

[0018] Among them, the sealing ring 403 is used to prevent water from flowing in from the gap between the second inlet 401 and the valve disc, thereby improving the sealing effect; When the electric ball valve body 2 is opened or closed, the water flow velocity changes abruptly, causing the hydraulic force to reach its maximum, impacting the pipe wall and valve. The check valve mechanism is used to mitigate the impact and reduce the water hammer effect. When the spray tank 1 is filled with water, the water flow first impacts the valve disc through the second inlet 401, using the valve disc to block the water force, and then flows through the valve body 4 into the Y-type filter 3.

[0019] Furthermore, the valve disc is a butterfly valve disc 408, and a valve seat 407 is fixedly connected inside the valve body 4 near the second water inlet 401. A pin 410 is fixedly connected to the inner wall of the valve seat 407 radially. It also includes a torsion spring 409, and a butterfly valve 408 is rotatably connected to both ends of the pin 410. The butterfly valve 408 is opened or closed by the torsion spring 409 around the pin 410.

[0020] When water flows into the second inlet 401, the fluid pressure overcomes the elastic force of the torsion spring 409, pushing the two butterfly valve discs 408 open. The butterfly valve discs 408 rotate around the pin 410, allowing water to flow through the valve seat 407 into the valve body 4. When the pressure decreases, the torsion spring 409 drives the butterfly valve discs 408 to close quickly. The butterfly valve discs 408 close quickly, which can effectively reduce the water hammer effect.

[0021] Example 2 In Example 1, a butterfly valve 408 is used to block the water flow. This check mechanism has a simple structure, but it can only be installed on horizontal pipes. When the water inlet pipe of the spray tank 1 is vertical or inclined, the valve in Example 1 cannot be used. Therefore, this example uses the rotating motion of the disc valve 402 to block the water impact, making it applicable to more diverse scenarios.

[0022] Please see Figure 4 The valve disc is a disc valve disc 402. Inside the valve body 4, near the upper part of the second water inlet 401, a fixing member 405 is fixedly connected. Inside the fixing member 405, a rotating shaft 404 is rotatably connected. The disc valve disc 402 is fixedly connected to the side wall of the rotating shaft 404.

[0023] When water flows into the second inlet 401 and impacts the disc valve 402, the disc valve 402 pushes the rotating shaft 404 to rotate around the fixed part 405. The disc valve 402 is close to the upper wall of the valve body 4 in the water flow, allowing the water to pass through. When the water flow stops or reverses, the disc valve 402 falls back to the second inlet 401 by its own weight, blocking the backflow of water.

[0024] Example 3 Please see Figure 5This embodiment further adds a damping system 406 to the embodiment 2, so that the disc valve 402 slows down when it closes, avoids the disc valve 402 from hitting the valve body 4 quickly and violently, reduces the water flow from oscillating back and forth in the pipeline, eliminates water hammer impact, and reduces pipeline damage.

[0025] Through the above steps, compared with the traditional spray pump water supply device, the water level of the spray tank 1 is monitored by the level sensor 102. When the water level of the spray tank 1 is lower than 40%, the level sensor 102 transmits the data to the controller 103. The controller 103 controls the electric ball valve body 2 to open the valve and automatically supply water to the spray tank 1. When the water level of the spray tank 1 is higher than 80%, the electric ball valve body 2 closes the valve and the spray tank 1 stops supplying water. This device reduces the labor intensity of operators by automatically supplying water and effectively prevents the problem of poor dust removal effect or overflow due to excessive water level in the spray tank 1 caused by insufficient water supply. By adding a check valve mechanism, the problem of water hammer effect caused by the sudden opening or closing of the electric ball valve body 2 when the spray tank 1 is automatically supplying water can be effectively alleviated. This is because the water flow velocity changes suddenly when the electric ball valve body 2 suddenly opens or closes during the automatic water supply of the spray tank 1, which causes the hydraulic pressure to reach its maximum. The valve disc blocks the second water inlet 401 to control the flow rate and prevent the impact of backflow, effectively reducing the impact of water flow on the pipe wall and valve.

[0026] 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. An automatic water supply device for an electric ball valve on a spray pump, characterized in that: The device includes a liquid level sensor (102), a controller (103), and an electric ball valve body (2). The liquid level sensor (102) is installed on the top of the inner wall of the spray tank (1). The first inlet (101) of the spray tank (1) is connected to the flange of the electric ball valve body (2). The electric ball valve body (2) controls the valve to open or close by signal connection with the liquid level sensor (102) through the controller (103). The other end flange of the electric ball valve body (2) is connected to a Y-type filter (3) to intercept pipeline impurities from entering the spray pump. The other end flange of the Y-type filter (3) is connected to a check mechanism consisting of a valve body (4), a second inlet (401), a valve disc, and a sealing ring (403). A valve disc is provided inside the valve body (4) near the second inlet (401) to block the second inlet (401). A sealing ring (403) is pasted on the valve disc along the circumference.

2. The automatic water supply device for the electric ball valve of the spray pump according to claim 1, characterized in that: The valve disc is a butterfly valve disc (408). A valve seat (407) is fixedly connected inside the valve body (4) near the second water inlet (401). A pin (410) is fixedly connected to the inner wall of the valve seat (407) radially.

3. The automatic water supply device for the electric ball valve of the spray pump according to claim 2, characterized in that: It also includes a torsion spring (409), and butterfly valves (408) are rotatably connected to both ends of the pin (410). The butterfly valves (408) are opened or closed by the torsion spring (409) around the pin (410).

4. The automatic water supply device for the electric ball valve of the spray pump according to claim 1, characterized in that: The valve disc is a disc valve disc (402). A fixing part (405) is fixedly connected to the upper part of the valve body (4) near the second water inlet (401). A rotating shaft (404) is rotatably connected inside the fixing part (405). The disc valve disc (402) is fixedly connected to the side wall of the rotating shaft (404).

5. The automatic water supply device for the electric ball valve of the spray pump according to claim 4, characterized in that: The disc valve disc (402) is rotatably connected to a damping system (406) on the side away from the second inlet (401), and the other end of the damping system (406) is rotatably connected to the inner wall of the valve body (4).

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