Constant-pressure lifting irrigation device

Abstract

The utility model discloses a constant pressure lift irrigation device, which relates to the technical field of irrigation water conservancy facilities, and comprises a reservoir, a water suction pump, a pressure pump, a water storage tank and a controller, the water suction pump and the pressure pump are arranged on one side of the reservoir, and the water suction pump and the pressure pump are provided with water inlet pipes extending into the reservoir; a water outlet pipe of the pressure pump is connected to the water storage tank, water outlet pipes of the water storage tank and the water pump are connected to two ends of a three-way pipe, the other end of the three-way pipe is connected to a water supply pipe for providing irrigation water, a pressure release valve is arranged on the water supply pipe, and a one-way valve is further arranged on the water pipe between the water storage tank and the three-way pipe; a pressure sensor is further arranged on the water storage tank, the pressure sensor and the pressure pump are electrically connected to the controller, and the pressure sensor receives a pressure value and feeds the pressure value back to the controller to control starting and stopping of the pressure pump. The water storage tank is additionally arranged beside the water suction pump, when water pressure in the irrigation system is insufficient, water in the water storage tank can be continuously supplied to the irrigation system, and the water pressure stability of the irrigation system is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation water conservancy facilities, in particular to a constant pressure irrigation device. Background Art

[0002] Irrigation system is the most basic and most important infrastructure for farmland production. As an important part of irrigation system facilities, pumping station is one of the most important and basic facilities. At present, the commonly used pumping station is mainly pumping station type, which is an engineering facility that uses water pumps to lift water from low places to high places or transport it to distant places, so as to irrigate agricultural production.

[0003] The existing pump station-type irrigation system is prone to unstable water pressure provided by the pump-type irrigation station for the irrigation system due to the existence of unstable water volume and uncontrollable factors such as electricity, which leads to insufficient water spray range during the spray irrigation process, resulting in inadequate irrigation of some farmlands. At present, some commonly used irrigation system irrigation stations mainly introduce pressure-stabilizing valves in the system to maintain the spray pressure of the water body; however, since the water volume is continuously sprayed during the irrigation process and the pressure range varies greatly, the pressure-stabilizing valve has a poor effect on the water volume. Utility Model Content

[0004] In response to the problems existing in the background technology, the utility model proposes a constant pressure irrigation device. By adding a water storage tank next to the water pump, when the water pressure in the irrigation system is insufficient, the water in the water storage tank will continue to supply the irrigation system to maintain the water pressure stability of the irrigation system.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a constant pressure irrigation device, including a water reservoir, a water pump, a pressure pump, a water storage tank, and a controller.

[0006] The water pump and the booster pump are arranged on one side of the water reservoir, and the water pump and the booster pump are provided with water inlet pipes extending into the water reservoir, and the ends of the water inlet pipes submerged by the water in the water reservoir are provided with filter heads;

[0007] The outlet pipe of the booster pump is connected to the water storage tank, the outlet pipes of the water storage tank and the water pump are connected to the two ends of the tee pipe, the other end of the tee pipe is connected to the water supply pipe for providing irrigation water, and a pressure relief valve is provided on the water supply pipe, and a one-way valve is also provided on the water pipe between the water storage tank and the tee pipe;

[0008] A pressure sensor is also provided on the water storage tank. The pressure sensor and the booster pump are electrically connected to the controller. The pressure sensor receives the pressure value and feeds it back to the controller, and the controller controls the start and stop of the booster pump.

[0009] Furthermore, a filter net for filtering debris is provided at the water inlet on one side of the water reservoir.

[0010] Furthermore, a drain outlet is provided below the water storage tank.

[0011] Furthermore, the booster pump and the water outlet pipe, as well as the water pipe and water supply pipe between the water pump and the three-way pipe are all provided with ball valves for controlling on and off.

[0012] Beneficial effects of the utility model: The utility model adds a water storage tank next to the water pump, and the booster pump can continuously pressurize the water storage tank. When the water pressure in the irrigation system is insufficient, the one-way valve on the water storage tank opens to replenish water into the water supply pipe, and the water body further replenishes the irrigation system to maintain the water pressure stability of the irrigation system. When the pressure in the water supply pipe is too high, the one-way valve closes to avoid double-way water supply. At the same time, adding a pressure relief valve in the water supply pipe can prevent the water pressure from exceeding the safety pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the overall structure of a constant pressure irrigation device.

[0014] Explanation of the reference numerals: 1. Water pump; 101. Water inlet pipe a; 102. Filter head a; 103. Water outlet pipe a; 1031. Ball valve a; 104. Water supply pipe; 1041. Ball valve c; 105. Pressure relief valve; 2. Pressurizing pump; 201. Water inlet pipe b; 202. Filter head b; 203. Water outlet pipe b; 2031. Ball valve b; 3. Water storage tank; 301. Pressure gauge; 302. Drain; 303. Water inlet; 304. Water outlet; 305. One-way valve; 4. Water reservoir; 401. Filter; 5. Controller. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0016] like Figure 1 The figure shows a constant pressure irrigation device, which mainly includes a water reservoir 4, a water pump 1, a pressure pump 2, a water tank 3, a controller 5, etc. The water reservoir 4 is set on the edge of a river, a reservoir or a lake, and a filter 401 for filtering debris is also provided at the water inlet on one side of the water reservoir 4. When the water body such as a river, a reservoir or a lake enters the water reservoir 4 along the water inlet, the filter 401 can intercept debris or sticks in the water body, prevent accumulation in the water reservoir 4, and improve the quality of the irrigation water body.

[0017] The water pump 1 and the booster pump 2 are arranged on one side of the water reservoir 4. The water pump 1 and the booster pump 2 are provided with water inlet pipes extending into the water reservoir 4. Figure 1As shown, water in the reservoir 4 is drawn into the irrigation system through the water inlet pipe a101 and the water inlet pipe b201. The ends of the water inlet pipe a101 and the water inlet pipe b201 submerged in the water in the reservoir 4 are provided with filter heads, such as Figure 1 The filter head a102 and the filter head b202 are shown. The filter head a102 and the filter head b202 are used to perform secondary filtration of the water body, thereby improving the water quality and preventing the residue from affecting the water pipe, the water pump or the booster pump 2.

[0018] like Figure 1 As shown, the outlet pipe b203 of the booster pump 2 is connected to the water storage tank 3, and the outlet pipes of the water storage tank 3 and the water pump 1 (such as Figure 1 The water pipe connected to the water outlet 304 of the water storage tank 3 shown and the water outlet pipe a103) are connected to the two ends of the tee pipe, and the other end of the tee pipe is connected to the water supply pipe 104 that provides irrigation water, and the water supply pipe 104 is provided with a pressure relief valve 105. When the pressure value in the water supply pipe 104 exceeds the safety pressure value, the water is discharged from the pressure relief valve 105 to avoid excessive water pressure value and damage to the water pipe body.

[0019] A one-way valve 305 is also provided on the water pipe between the water storage tank 3 and the three-way pipe. When the pressure value in the water supply pipe 104 is less than the pressure value in the water storage tank 3, the one-way valve 305 opens, so that the water in the water storage tank 3 is replenished in the water supply pipe 104, avoiding the pressure being too low, causing the water pressure loss in the irrigation system, and improving the coverage and sufficiency of paddy field irrigation. When the pressure value in the water supply pipe 104 is greater than the pressure value in the water storage tank 3, the one-way valve 305 closes to maintain the water pressure of the water supply pipe 104 stable, further improving the water pressure stability of the paddy field irrigation system, avoiding the instability of the fan-shaped area sprayed by the sprinkler of the irrigation system, and improving the uniformity of the irrigation spray water.

[0020] The water tank 3 is also provided with a pressure sensor, which can be configured as an electronic pressure gauge 301. The pressure sensor and the booster pump 2 are connected to the controller 5 through a signal line, and the controller 5 can be configured as a PLC controller. The pressure sensor (pressure gauge 301) receives the pressure value and feeds it back to the controller 5. The pressure range value of the water tank 3 is set in the controller 5. When the water pressure of the water tank 3 is lower than the range value, the controller 5 controls the booster pump 2 to start. When the water pressure of the water tank 3 is higher than the range value, the controller 5 controls the booster pump 2 to stop. The booster pump 2 starts and stops to add water, which can ensure that the water pressure in the water tank 3 has a certain stability, and further ensure the sensitivity of the one-way valve 305.

[0021] like Figure 1 As shown, a drain outlet 302 is provided below the water storage tank 3. When the water storage tank 3 needs to be repaired or cleaned, the sewage can be discharged by opening the drain outlet 302.

[0022] like Figure 1As shown, the outlet pipe of the booster pump 2, the water pipe between the water pump 1 and the three-way pipe, and the water supply pipe 104 are all provided with ball valves for controlling the on-off, namely, ball valve b2031, ball valve a1031 and ball valve c1041, which can respectively control the on-off of the outlet pipe b203 connected to the water inlet 303 of the water storage tank 3, the outlet pipe a103 and the water supply pipe 104, thereby facilitating the maintenance and replacement of the water pipes, and also making it more convenient to check the water flow in the water pipes.

[0023] The utility model adds a water storage tank 3 next to the water pump 1, and the booster pump 2 can continuously pressurize the water storage tank 3. When the water pressure in the irrigation system is insufficient, the one-way valve 305 on the water storage tank 3 opens, thereby replenishing water into the water supply pipe 104, and the water body further replenishes the irrigation system to maintain the water pressure stability of the irrigation system. When the pressure in the water supply pipe 104 is too high, the one-way valve 305 is closed to avoid double-way water supply. At the same time, adding a pressure relief valve 105 to the water supply pipe 104 can prevent the water pressure from exceeding the safety pressure, and well maintain the water supply stability of the irrigation system.

[0024] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A constant pressure irrigation device, characterized in that: It includes a water reservoir (4), a water pump (1), a pressure pump (2), a water storage tank (3), and a controller (5). The water pump (1) and the booster pump (2) are arranged on one side of the water reservoir (4), and the water pump (1) and the booster pump (2) are provided with a water inlet pipe extending into the water reservoir (4), and a filter head is provided at the end of the water inlet pipe submerged in the water of the water reservoir (4); The water outlet pipe of the booster pump (2) is connected to the water storage tank (3), the water outlet pipes of the water storage tank (3) and the water pump (1) are connected to the two ends of a three-way pipe, the other end of the three-way pipe is connected to a water supply pipe (104) for providing irrigation water, and a pressure relief valve (105) is provided on the water supply pipe (104), and a one-way valve (305) is also provided on the water pipe between the water storage tank (3) and the three-way pipe; The water storage tank (3) is also provided with a pressure sensor. The pressure sensor and the booster pump (2) are electrically connected to the controller (5). The pressure sensor receives the pressure value and feeds it back to the controller (5). The controller (5) controls the start and stop of the booster pump (2).

2. The constant pressure irrigation device according to claim 1, characterized in that: The water inlet on one side of the water reservoir (4) is also provided with a filter screen (401) for filtering debris.

3. The constant pressure irrigation device according to claim 2, characterized in that: A drainage outlet (302) is provided below the water storage tank (3).

4. The constant pressure irrigation device according to any one of claims 1 to 3, characterized in that: The water outlet pipe of the booster pump (2), the water pipe between the water pump (1) and the three-way pipe, and the water supply pipe (104) are all provided with ball valves for controlling on and off.

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