Agricultural water circulation device

Abstract

The utility model discloses an agricultural water circulation device, belongs to the technical field of water treatment, and solves the problem that how to carry out water circulation action of agricultural wastewater needs to be comprehensively considered by considering precipitation separation of wastewater and wastewater inflow conditions. Comprising a sedimentation tank and a tank body, the sedimentation tank is communicated with a water inlet pipe, the sedimentation tank is communicated with the tank body through an inlet pipe, an L-shaped pipe communicated with the inlet pipe is arranged in the sedimentation tank, the inlet pipe is communicated with a water pump, the tank body is communicated with an outlet pipe, the outlet pipe can be arranged in an on-off mode, and the water inlet pipe is communicated with a flow sensor. When the device is used, wastewater flows into the sedimentation tank, the liquid level sensor feeds back a signal after detecting the liquid level, the triode switch is triggered, the relay powers on the water pump, the flow sensor monitors the water flow, the time delay circuit is used for timing when the water flow is lower than the standard time, the controller outputs a signal to control the water pump and ensure sedimentation, and the L-shaped pipe pumps sedimentation water into the tank body and discharges the sedimentation water after temporary storage.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to an agricultural water circulation device. Background Art

[0002] The treatment of agricultural wastewater with solid impurities is a key environmental management measure aimed at purifying wastewater containing a large amount of solid particles and organic substances. Such wastewater usually comes from livestock and poultry farms, farmland irrigation drainage, and agricultural product processing sites. The treatment process first involves a pretreatment stage, using screens, grilles, or grit chambers to remove larger solid impurities and prevent subsequent treatment equipment from being blocked. Subsequently, precipitation or flotation techniques may be used to further separate smaller solid particles.

[0003] However, the current method of water treatment and circulation through precipitation is hindered by the continuous inflow of water, so it is difficult to control the pumping timing. Therefore, it is necessary to consider the precipitation separation of wastewater and the inflow of wastewater to comprehensively consider how to perform the water circulation action of agricultural wastewater.

[0004] Therefore, an agricultural water circulation device is proposed to solve or alleviate the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose an agricultural water circulation device.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An agricultural water circulation device includes a sedimentation tank and a tank body. The sedimentation tank is connected with a water inlet pipe, the sedimentation tank and the tank body are connected through an inlet pipe, and an L-shaped pipe connected with the inlet pipe is arranged in the sedimentation tank. A water pump is connected to the inlet pipe. The tank body is connected with an outlet pipe, and the outlet pipe is provided with a switchable connection. A flow sensor is connected to the water inlet pipe. The flow sensor detects the liquid flow in the water inlet pipe and feeds back a flow signal. The flow sensor is connected with a control circuit, and the control circuit is coupled with the water pump. The control circuit controls the start and stop of the water pump according to the flow signal.

[0008] Preferably, the control circuit includes

[0009] A voltage comparison circuit I, the input end of the voltage comparison circuit I is coupled with the output end of the flow sensor, and the voltage comparison circuit I outputs a comparison signal I in response to the flow signal being less than the flow reference signal;

[0010] A delay circuit, the input end of the delay circuit is coupled with the output end of the voltage comparison circuit I, and the delay circuit starts timing in response to the comparison signal I and outputs a delay signal after the timing ends;

[0011] A controller, the input end of the controller is coupled to the output end of the delay circuit, and the controller outputs a control signal in response to the delay signal;

[0012] A motor drive circuit, the input end of the motor drive circuit is coupled to the output end of the controller, the output end of the motor drive circuit is coupled to the input end of the water pump, and the motor drive circuit controls the start and stop of the water pump in response to the control signal.

[0013] Preferably, the control circuit further includes

[0014] A liquid level sensor, the liquid level sensor detects the liquid level in the sedimentation tank and feeds back the liquid level signal;

[0015] A voltage comparison circuit two, the input end of the voltage comparison circuit two is coupled to the output end of the liquid level sensor, and the voltage comparison circuit two outputs a comparison signal two in response to the liquid level signal being greater than the liquid level reference signal;

[0016] A switch circuit, the controlled end of the switch circuit is coupled to the output end of the voltage comparison circuit two, a relay is connected in series on the switch circuit, the relay is connected to the water pump, and the switch circuit controls the relay to turn on and off the water pump in response to the comparison signal two.

[0017] Preferably, the top surface of the sedimentation tank is open, and a semi-cover is fixedly connected to the top surface of the sedimentation tank, the liquid level sensor is fixedly connected to the bottom surface of the semi-cover, and the probe of the liquid level sensor extends into the sedimentation tank.

[0018] Preferably, the voltage comparison circuit one includes a voltage comparison electrical appliance, the delay circuit includes an RC delay circuit, the controller includes an STM32F103RCT6 embedded microcontroller, and the motor drive circuit includes a TB67S109AFTG motor drive chip.

[0019] Preferably, the voltage comparison circuit two includes a voltage comparator, the switch circuit includes a triode switch, the relay includes a relay body and a relay switch, the base of the triode switch is coupled to the output end of the voltage comparison circuit two, the collector of the triode switch is connected to the relay body and then connected to the power supply, the emitter of the triode switch is grounded, and the relay switch is connected in series with the water pump and connected to the power supply.

[0020] Preferably, a drain pipe communicating with the inside thereof is fixedly connected to the bottom of the side wall of the sedimentation tank, and the drain pipe is provided to be openable and closable.

[0021] The utility model has the following beneficial effects:

[0022] When the utility model is in use, wastewater flows into the sedimentation tank. After the liquid level sensor detects the liquid level, it feeds back a signal, triggers the triode switch, and the relay powers on the water pump. The flow sensor monitors the water flow. When it is lower than the standard, the delay circuit starts timing, and the controller outputs a signal to control the water pump to ensure sedimentation. The L-shaped pipe sucks the sedimented water into the tank body, stores it temporarily and then discharges it. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a structural block diagram of the control circuit in the present utility model.

[0026] 1. Sedimentation tank; 101. Inlet pipe; 102. Semi-cover; 2. Tank body; 201. Inlet pipe; 202. Outlet pipe; 3. Water pump; 4. Flow sensor; 5. Voltage comparison circuit one; 6. Delay circuit; 7. Controller; 8. Motor drive circuit; 9. Liquid level sensor; 10. Voltage comparison circuit two; 11. Switch circuit; 12. Relay. Detailed Embodiment

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0029] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0031] In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] An agricultural water circulation device, as Figure 1 shown, includes a sedimentation tank 1 and a tank body 2. The top surface of the sedimentation tank 1 is open, and a semi-cover 102 is fixedly connected to the top surface of the sedimentation tank 1. A drain pipe communicating with its interior is fixedly connected to the bottom of the side wall of the sedimentation tank 1. The drain pipe can be switched on and off. An inlet pipe 101 is connected to the sedimentation tank 1. The sedimentation tank 1 and the tank body 2 are connected through an inlet pipe 201. An L-shaped pipe communicating with the inlet pipe 201 is arranged in the sedimentation tank 1. A water pump 3 is connected to the inlet pipe 201. An outlet pipe 202 is connected to the tank body 2. The outlet pipe 202 can be switched on and off. A flow sensor 4 is connected to the inlet pipe 101. The flow sensor 4 detects the liquid flow in the inlet pipe 101 and feeds back a flow signal. The flow sensor 4 is connected to a control circuit. The control circuit is coupled to the water pump 3. The control circuit controls the start and stop of the water pump 3 according to the flow signal. Specifically, valves are connected to both the outlet pipe 202 and the drain pipe to achieve their on-off.

[0034] As Figure 2 shown, the control circuit includes a first voltage comparison circuit 5, a delay circuit 6, a controller 7, and a motor drive circuit 8. The first voltage comparison circuit 5 includes a voltage comparison electrical appliance. The delay circuit 6 includes an RC delay circuit 6. The controller 7 includes an STM32F103RCT6 embedded microcontroller 7. The motor drive circuit 8 includes a TB67S109AFTG motor drive chip.

[0035] The input end of the first voltage comparison circuit 5 is coupled to the output end of the flow sensor 4. The first voltage comparison circuit 5 outputs a first comparison signal in response to the flow signal being less than the flow reference signal. The input end of the delay circuit 6 is coupled to the output end of the first voltage comparison circuit 5. The delay circuit starts timing in response to the first comparison signal and outputs a delay signal after the timing ends. The input end of the controller 7 is coupled to the output end of the delay circuit 6. The controller 7 outputs a control signal in response to the delay signal. The input end of the motor drive circuit 8 is coupled to the output end of the controller 7. The output end of the motor drive circuit 8 is coupled to the input end of the water pump 3. The motor drive circuit 8 controls the start and stop of the water pump 3 in response to the control signal.

[0036] As Figure 2 shown, the control circuit further includes a liquid level sensor 9, a second voltage comparison circuit 10, and a switch circuit 11. The second voltage comparison circuit 10 includes a voltage comparator. The switch circuit 11 includes a triode switch. The base of the triode switch is coupled to the output end of the second voltage comparison circuit 10. The collector of the triode switch is connected to the relay 12 body and then connected to the power supply. The emitter of the triode switch is grounded. The relay 12 switch is connected in series with the water pump 3 and connected to the power supply.

[0037] The liquid level sensor 9 is fixedly connected to the bottom surface of the semi-cover 102. The probe of the liquid level sensor 9 extends into the sedimentation tank 1. The liquid level sensor 9 detects the liquid level in the sedimentation tank 1 and feeds back a liquid level signal. The input end of the second voltage comparison circuit 10 is coupled to the output end of the liquid level sensor 9. The second voltage comparison circuit 10 outputs a second comparison signal in response to the liquid level signal being greater than the liquid level reference signal. The controlled end of the switch circuit 11 is coupled to the output end of the second voltage comparison circuit 10. A relay 12 is connected in series on the switch circuit 11. The relay 12 is connected to the water pump 3. The switch circuit 11 controls the power on and off of the relay 12 to the water pump 3 in response to the second comparison signal.

[0038] When the utility model is actually applied, wastewater flows into the sedimentation tank 1 through the water inlet pipe 101. As the wastewater in the sedimentation tank 1 increases, after the liquid level sensor 9 detects the liquid level, it feeds back a liquid level signal to the voltage comparison circuit two 10. After the voltage comparison circuit two 10 responds to the liquid level signal being greater than the liquid level reference signal, it outputs a comparison signal two. After the comparison signal two is fed to the base of the triode switch, the collector and emitter of the triode switch will also conduct, so that the relay 12 body is powered on, and then the relay 12 switch is closed, so that the water pump 3 can be powered on. During this process, the flow sensor 4 will detect the water flow in the water inlet pipe 101 and feed back a water flow signal to the voltage comparison circuit one 5. After the voltage comparison circuit one 5 responds to the flow signal being less than the flow reference signal, it outputs a comparison signal one. The comparison signal one is continuously fed to the delay circuit 6. The capacitor in the delay circuit 6 is charged, and when the charging is completed, it also represents the end of the timing. At this time, the delay circuit 6 outputs a delay signal to the controller 7. The controller 7 responds to the delay signal and outputs a control signal to the motor drive circuit 8. The motor drive circuit 8 will then control the water pump 3 to ensure that the water pump 3 works. The setting of the delay circuit 6 ensures that a certain sedimentation time is provided for the water flow in the sedimentation tank 1. When pumping water through the L-shaped pipe, due to the setting of its L-shaped structure, it will suck the sediment-separated water higher than its opening. The sediment-separated water enters the tank body 2 through the inlet pipe 201 and can leave through the outlet pipe 202 after being temporarily stored in the tank body 2.

[0039] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An agricultural water circulation device, characterized in that, It includes a sedimentation tank (1) and a tank body (2). A water inlet pipe (101) is connected to the sedimentation tank (1). The sedimentation tank (1) is connected to the tank body (2) through an inlet pipe (201). An L-shaped pipe connected to the inlet pipe (201) is arranged in the sedimentation tank (1). A water pump (3) is connected to the inlet pipe (201). An outlet pipe (202) is connected to the tank body (2), and the outlet pipe (202) is arranged to be open and closed. A flow sensor (4) is connected to the water inlet pipe (101). The flow sensor (4) detects the liquid flow in the water inlet pipe (101) and feeds back a flow signal. The flow sensor (4) is connected to a control circuit, and the control circuit is coupled to the water pump (3). The control circuit controls the start and stop of the water pump (3) according to the flow signal.

2. The agricultural water circulation device according to claim 1, characterized in that, The control circuit includes a first voltage comparison circuit (5). The input end of the first voltage comparison circuit (5) is coupled to the output end of the flow sensor (4). The first voltage comparison circuit (5) outputs a first comparison signal after responding to the flow signal being less than the flow reference signal. a delay circuit (6). The input end of the delay circuit (6) is coupled to the output end of the first voltage comparison circuit (5). The delay circuit starts timing in response to the first comparison signal and outputs a delay signal after the timing ends. a controller (7). The input end of the controller (7) is coupled to the output end of the delay circuit (6). The controller (7) outputs a control signal in response to the delay signal. a motor drive circuit (8). The input end of the motor drive circuit (8) is coupled to the output end of the controller (7). The output end of the motor drive circuit (8) is coupled to the input end of the water pump (3). The motor drive circuit (8) controls the start and stop of the water pump (3) in response to the control signal.

3. The agricultural water circulation device according to claim 2, characterized in that, The control circuit further includes a liquid level sensor (9). The liquid level sensor (9) detects the liquid level in the sedimentation tank (1) and feeds back a liquid level signal. a second voltage comparison circuit (10). The input end of the second voltage comparison circuit (10) is coupled to the output end of the liquid level sensor (9). The second voltage comparison circuit (10) outputs a second comparison signal after responding to the liquid level signal being greater than the liquid level reference signal. a switch circuit (11). The controlled end of the switch circuit (11) is coupled to the output end of the second voltage comparison circuit (10). A relay (12) is connected in series on the switch circuit (11). The relay (12) is connected to the water pump (3). The switch circuit (11) controls the on-off of the water pump (3) by the relay (12) in response to the second comparison signal.

4. The agricultural water circulation device according to claim 3, characterized in that, The top surface of the sedimentation tank (1) is open, and a semi-cover (102) is fixedly connected to the top surface of the sedimentation tank (1). The liquid level sensor (9) is fixedly connected to the bottom surface of the semi-cover (102), and the probe of the liquid level sensor (9) extends into the sedimentation tank (1).

5. The agricultural water circulation device according to claim 2, characterized in that, The voltage comparison circuit 1 (5) includes a voltage comparison electrical appliance, the delay circuit (6) includes an RC delay circuit (6), the controller (7) includes an STM32F103RCT6 embedded microcontroller (7), and the motor drive circuit (8) includes a TB67S109AFTG motor drive chip.

6. An agricultural water circulation device according to claim 3, characterized in that, The voltage comparison circuit 2 (10) includes a voltage comparator, the switch circuit (11) includes a triode switch, the relay (12) includes a relay (12) body and a relay (12) switch. The base of the triode switch is coupled to the output terminal of the voltage comparison circuit 2 (10). The collector of the triode switch is connected to the relay (12) body and then connected to the power supply. The emitter of the triode switch is grounded. The relay (12) switch is connected in series with the water pump (3) and the power supply is set.

7. The agricultural water circulation device according to claim 1, characterized in that, A drain pipe communicating with the inside thereof is fixedly connected to the bottom of the side wall of the sedimentation tank (1), and the drain pipe is provided to be openable and closable.

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