A fully automatic control device for lifting water pump water diversion

Abstract

The present invention discloses a fully automatic control device for lifting water pump water diversion, comprising a water storage tank, a water level sensor, a solenoid valve, an external pressure water source, an audible and visual alarm, and a control box. The main inlet and outlet interface of the water storage tank is connected to the water outlet end of the centrifugal water pump via a docking flange. The water level sensor and the outlet side of the solenoid valve are installed on the water storage tank and connected to the control box via a cable. The external pressure water source is connected to the water inlet side of the solenoid valve. The control box outputs a protection signal and is connected to the control circuit of the centrifugal water pump via a cable. The outside of the control box is connected to the audible and visual alarm via a cable. The present invention has a simple structure, is easy to install, saves operation and maintenance costs, and is suitable for agricultural irrigation, municipal water supply systems, building water supply, industrial circulating water systems, and other occasions.

Description

Technical Field

[0001] The present invention relates to the field of intelligent control technology, in particular to a fully automatic control device for lifting water pump water diversion. Background Art

[0002] At present, the well-known centrifugal lifting water pump unit (hereinafter referred to as the pump unit) consists of a check valve, a water inlet pipe, a water diversion pipe, a water diversion valve, a water diversion funnel, a water pump and a water outlet pipe. Figure 1 As shown;

[0003] The working process is:

[0004] 1. When starting the pump set for the first time: open the water inlet valve and manually inject water through the water inlet funnel. When the water is full, close the water inlet valve and start the water pump to complete the startup process of the pump set.

[0005] 2. Stopping and restarting the pump: When the pump is stopped, the pump stops running. Due to the pressure difference between the water level in the water inlet pipe and the water surface, the check valve automatically closes, and the water inlet pipe remains full of water. When the pump is restarted, there is no need to manually fill the water, ensuring normal intermittent operation of the pump.

[0006] However, as the pump unit ages, the check valve is inevitably affected by algae, silt, and other sediments, often causing the valve core to become stuck, resulting in the check valve not closing tightly and leaking. During periods of intermittent pumping, the water level in the inlet pipe may drop due to the check valve leakage, or even completely drain to the horizontal level, creating an "air segment" in the inlet pipe. If the pump unit is started at this time, the air in the inlet pipe prevents the centrifugal pump from operating normally and pumping water, causing the pump to run idle.

[0007] Only during intermittent operation, manual observation is strengthened. Once the pump set runs idle, manual priming and water diversion are required to ensure the normal operation of the pump set. In the long run, this is not only uneconomical, but also inevitably causes damage to the pump set equipment, and also reduces the reliability and safety of the entire water supply system. Summary of the Invention

[0008] The object of the present invention is to provide a fully automatic control device for lifting water pump water diversion to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A fully automatic control device for lifting water pump water diversion, including a water storage tank, a water level sensor, a solenoid valve, an external pressure water source, an audible and visual alarm and a control box. The main inlet and outlet interface of the water storage tank is connected to the water outlet end of the centrifugal water pump through a docking flange. The water level sensor and the outlet side of the solenoid valve are installed on the water storage tank and connected to the control box through a cable. The external pressure water source is connected to the water inlet side of the solenoid valve. The control box outputs a protection signal and is connected to the control circuit of the centrifugal water pump through a cable. The outside of the control box is connected to the audible and visual alarm through a cable.

[0011] As a further technical solution of the present invention, a submersible pump is connected to the outside of the control box via a cable.

[0012] As a further technical solution of the present invention, the water level sensor adopts one or a combination of probe sensing type, mechanical float type, mechanical float type, and water pressure detection type.

[0013] As a further technical solution of the present invention, the control box is composed of one or a combination of analog circuits, logic circuits, single-chip microcomputer circuits, and industrial programmable controllers.

[0014] As a further technical solution of the present invention, the material of the water storage tank includes one or a combination of metal, polymer material, plastic, fiberglass reinforced plastic, glass, concrete and brick-concrete.

[0015] As a further technical solution of the present invention, the shape of the water storage tank is one or a combination of tank, spherical, square, elliptical, and polyhedral shapes.

[0016] As a further technical solution of the present invention, a control box monitoring control circuit is used to monitor the water level in the water tank by monitoring the water level sensor installed on the water tank, and control the opening and closing of the water replenishment solenoid valve to replenish the water in the water tank.

[0017] As a further technical solution of the present invention, a monitoring control circuit is provided inside the control box, which detects the water level in the monitoring water tank through a water level sensor. When the water level in the monitoring water tank is seriously insufficient, the control box sends an alarm signal, drives the sound and light alarm to issue an alarm prompt, and at the same time cuts off the starting control circuit of the centrifugal water pump motor, so that the motor cannot start, thereby protecting the centrifugal water pump.

[0018] As a further technical solution of the present invention, the monitoring control circuit includes a chip IC1-1, a chip IC1-4, a transistor N1, a transistor N2, a relay K1 and a relay K2, pin 1 of the chip IC1-1 is connected to pin 2 of the chip IC1-1, a resistor R1 and pin 2 of the water level sensor S1, the other end of the resistor R1 is connected to the resistor R2 and the power supply VCC, the other end of the resistor R2 is connected to the contact K1 / 2-2 of the relay K1, the pin 13 of the chip IC1-4 and the pin 4 of the water level sensor S1, the pin 1 of the water level sensor S1 is grounded, the pin 3 of the water level sensor S1 is connected to the resistor R3, the other end of the contact K1 / 2-2 of the relay K1 and the pin 12 of the chip IC1-4, the other end of the resistor R3 is connected Connect the cathode of diode D2, the cathode of diode D3, relay K1, relay K2, contact K2 / 3-1 of relay K2, contact K2 / 1-2 of relay K2, contact K1 / 3-2 of relay K1, resistor R10 and switching power supply B1. Switching power supply B1 is also connected to 220V power supply through air switch K5. Contact K4 / 1-1 of relay K4, contact K4 / 2-1 of relay K4 and submersible pump M1 are connected in series to form a control circuit connected to both ends of 220V power supply. Contact K1 / 3-1 of relay K1 and AC contactor are connected in series to form a control circuit connected to both ends of 220V power supply. The anode of diode D2 is connected to the collector of transistor N1 and the other end of relay K1. The other end is connected to pin 10 of chip IC1-3 through resistor R6. The anode of diode D3 is connected to the collector of transistor N2 and the other end of relay K2. The other end of transistor N2 is connected to pin 4 of chip IC1-2 and contact K3 / 2-2 of relay K3 through resistor R9. Pin 5 of chip IC1-2 is connected to pin 6 of chip IC1-2 and resistor R8. The other end of resistor R8 is connected to capacitor C2 and resistor R7. The other end of resistor R7 is connected to pin 3 of chip IC1-1. Pin 8 of chip IC1-3 is connected to pin 5 of chip IC1-2 and resistor R5. The other end of resistor R5 is connected to capacitor C1, resistor R4 and the cathode of diode D1. The other end of resistor R4 is connected to pin 1 of chip IC1-4. 1. The anode of diode D1 is connected to the other end of contact K3 / 2-2 of relay K3, the other end of contact K2 / 3-1 of relay K2 is connected to relay K3, the other end of relay K3 is connected to manual water filling button AN2, contact K2 / 2-2 of relay K2 and contact K2 / 2-1 of relay K2 are connected to the normally closed end and normally open end of the water pump motor control circuit respectively, the other end of manual water filling button AN2 is connected to manual water filling button AN1 and contact K3 / 1-1 of relay K3, the other end of contact K2 / 1-1 of relay K2 is connected to sound and light alarm BJQ, the other end of contact K1 / 1-1 of relay K1 is connected to solenoid valve F1, and the other end of resistor R10 is connected to power indicator light D4.Chips IC1-1, IC1-2, IC1-2, and IC1-4 are all 1 / 4 CD4011 chips. Pin 1 of the water level sensor S1 is the common terminal, pin 2 of the water level sensor S1 is the ultra-low water level terminal, pin 3 of the water level sensor S1 is the low water level terminal, and pin 4 of the water level sensor S1 is the high water level terminal.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention has a simple structure, is easy to install, saves operation and maintenance costs, and is suitable for agricultural irrigation, municipal water supply systems, building water supply, industrial circulating water systems and other occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Structural diagram of the prior art

[0022] Figure 2 It is a structural diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the present invention.

[0024] Figure 4 This is the circuit diagram of the control part of the monitoring control circuit.

[0025] Figure 5 This is the circuit diagram of the power supply part of the monitoring control circuit.

[0026] In the figure: 1-check valve, 2-backflow pipeline, 3-water diversion valve, 4-water diversion funnel, 5-water level sensor, 6-water supply pipeline, 7-solenoid valve, 8-water storage tank, 9-external pressure water source, 10-centrifugal water pump, 11-water supply pipeline, 12-drainage pipeline, 13-water tank. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0028] See also Figure 2, Example 1: A fully automatic control device for lifting water pump water diversion, including a water tank 8, a water level sensor 5, a solenoid valve 7, an external pressure water source 9, an audible and visual alarm and a control box. The main inlet and outlet interface of the water tank 8 is connected to the water outlet end of the centrifugal water pump 10 through a docking flange. The water level sensor 5 and the outlet side of the solenoid valve 7 are installed on the water tank 8 and connected to the control box through a cable. The external pressure water source 9 is connected to the water inlet side of the solenoid valve 7. The control box outputs a protection signal and is connected to the control circuit of the centrifugal water pump 10 through a cable. The outside of the control box is connected to an audible and visual alarm through a cable.

[0029] The outside of the control box is connected to a submersible pump 10 via a cable. The control box monitors the control circuit, monitors the water level in the water tank by monitoring the water level sensor 5 installed on the water tank 8, and controls the opening and closing of the water replenishment solenoid valve 7 to replenish the water tank 8 with water.

[0030] In Example 2, based on Example 1 above, the water tank can be made of metal, polymer, plastic, fiberglass, glass, concrete, or brick-concrete. Its shape can be tank-shaped, spherical, square, elliptical, polyhedral, or a combination of the above. The water level sensor can be based on probe sensing, mechanical float, mechanical float, water pressure detection, or a combination of the above principles. The signal output format can be a voltage signal, current signal, resistance signal, frequency signal, node signal, digital code signal, or a combination of two or more of the above. The solenoid valve can be an electric ball valve or an electric butterfly valve. The valve control signal can be a voltage signal, current signal, resistance signal, frequency signal, node signal, digital code signal, or a combination of two or more of the above. The external pressure water source can be municipal tap water, water tower water supply, high-level water tank, high-level water pool water supply, or self-contained auxiliary water pump water supply. The control box can be composed of analog circuits, logic circuits, single-chip microcomputer circuits, industrial programmable controllers (PLCs), or a combination of the above circuits.

[0031] The working process of the present invention is as follows:

[0032] 1. At the water outlet of the pump unit, install a "water storage tank" with a capacity and pressure that matches the capacity of the pump unit to serve as a water supply for the water inlet pipeline when the pump unit stops.

[0033] The working process is as follows: when the pump is started manually or with external water, the water tank is filled after the pump unit enters normal operation. When the pump unit stops intermittently, the water in the water tank forms a pressure difference due to its own weight, and automatically flows back into the water inlet pipe through the water pump cavity to supplement the water loss caused by leakage of the check valve. This ensures that the water inlet pipe is always full, providing reliable water supply conditions for the next pump unit start-up.

[0034] The greater the pumping flow rate per unit time and the larger the inlet pipe diameter, the larger the water storage tank volume should be designed, and vice versa. The specific design capacity can be calculated based on the two conditional parameters of the check valve leakage rate and the pump shutdown time, adding a safety factor to calculate the optimal water storage tank volume.

[0035] The higher the design head of the pump unit, the higher the required pressure of the water storage tank, and vice versa. Specifically, the hydraulic pressure generated by the maximum head (lifting height) of the pump unit can be calculated to determine the hydraulic pressure the water storage tank will experience when the pump unit is in operation. After adding a safety factor, this is the design pressure value of the water storage tank.

[0036] At the same time, the highest water level in the water storage tank cannot be higher than the height of the pump unit's water outlet pipe to prevent the stored water from being lost through the outlet pipe. If this situation cannot be avoided, a "horizontal tank" layout can be adopted to lower the installation height of the water storage tank, or a "U"-shaped pipe with an upward protrusion height not lower than the water storage tank can be designed on the pump unit's water outlet pipe, or a control valve that can automatically close when the pump unit stops can be added to the water outlet pipe to ensure that the water in the water storage tank will not be lost through the outlet pipe when the pump unit stops, and it will always be fully filled.

[0037] 2. The water tank is equipped with an external water replenishment control device to prevent the check valve leakage rate from exceeding the design value, resulting in insufficient water storage in the water tank to meet the water replenishment requirements during pump shutdown. This device ensures that even in the event of a significant check valve leak, the water storage capacity in the water tank can be maintained to meet the water replenishment requirements when the pump is restarted. It also allows the pump to be started for the first time without manual water replenishment.

[0038] Its working process is:

[0039] The water storage tank is equipped with a water level sensor and three water level monitoring points, namely high water level measuring point, low water level measuring point and ultra-low water level measuring point. The monitoring signals of each measuring point are connected to the control box respectively.

[0040] In addition, a water replenishment solenoid valve is provided at the top of the water storage tank, which is connected to an external water source through the solenoid valve. The external water source can be pipeline pressure water such as municipal tap water, or the water supply side of an upper water pool or water tower, or a self-contained submersible pump controlled in conjunction with the water level of the water storage tank.

[0041] The opening and closing signals of the water supply solenoid valve come from the control box. The control box has multiple remote control outputs and node signal outputs, and is connected to an external sound and light alarm.

[0042] When the pump group is intermittently stopped, the water level in the water storage tank is lower than the low water level measuring point due to leakage of the check valve, the control box detects the low water level sensor signal, outputs the valve opening signal, the solenoid valve opens (and simultaneously starts the self-contained submersible pump, if any), and external water is introduced to replenish the water storage tank through the water replenishment solenoid valve. When the replenishment water level reaches the high water level measuring point, the control box detects the high water level sensor signal, outputs the valve closing signal, and the solenoid valve closes.

[0043] If the check valve fails completely, or the water inlet pipe ruptures, or the external water source is lost, the water tank cannot be effectively replenished, and the water level in the tank continues to drop. When the water level falls below the ultra-low water level, the control box detects the ultra-low water level signal and outputs a node signal, cutting off the control circuit of the pump motor, preventing the pump motor from starting to protect it. At the same time, the control box outputs an audible and visual alarm control signal, connecting the external audible and visual alarm to sound an alarm warning.

[0044] The circuit principle of the present invention is as follows Figure 4 and 5 As shown,

[0045] The monitoring and control circuit includes a chip IC1-1, a chip IC1-4, a transistor N1, a transistor N2, a relay K1 and a relay K2. Pin 1 of the chip IC1-1 is connected to pin 2 of the chip IC1-1, a resistor R1 and pin 2 of the water level sensor S1. The other end of the resistor R1 is connected to the resistor R2 and the power supply VCC. The other end of the resistor R2 is connected to the contact K1 / 2-2 of the relay K1, the pin 13 of the chip IC1-4 and the pin 4 of the water level sensor S1. The pin 1 of the water level sensor S1 is grounded. The pin 3 of the water level sensor S1 is connected to the resistor R3, the other end of the contact K1 / 2-2 of the relay K1 and the pin 12 of the chip IC1-4. The other end of the resistor R3 is connected to the cathode of the diode D2, the cathode of the diode D3, the relay K 1. Relay K2, contact K2 / 3-1 of relay K2, contact K2 / 1-2 of relay K2, contact K1 / 3-2 of relay K1, resistor R10 and switching power supply B1. Switching power supply B1 is also connected to the 220V power supply through the air switch K5. Contact K4 / 1-1 of relay K4, contact K4 / 2-1 of relay K4 and submersible pump M1 are connected in series to form a control circuit connected to both ends of the 220V power supply. Contact K1 / 3-1 of relay K1 and the AC contactor are connected in series to form a control circuit connected to both ends of the 220V power supply. The anode of diode D2 is connected to the collector of transistor N1 and the other end of relay K1. The other end of transistor N1 is connected to pin 10 of chip IC1-3 through resistor R6. The anode of diode D3 Connect the collector of transistor N2 to the other end of relay K2. The other end of transistor N2 is connected to pin 4 of chip IC1-2 and contact K3 / 2-2 of relay K3 through resistor R9. Pin 5 of chip IC1-2 is connected to pin 6 of chip IC1-2 and resistor R8. The other end of resistor R8 is connected to capacitor C2 and resistor R7. The other end of resistor R7 is connected to pin 3 of chip IC1-1. Pin 8 of chip IC1-3 is connected to pin 5 of chip IC1-2 and resistor R5. The other end of resistor R5 is connected to capacitor C1, resistor R4 and the cathode of diode D1. The other end of resistor R4 is connected to pin 11 of chip IC1-4. The anode of diode D1 is connected to the other end of contact K3 / 2-2 of relay K3. Contact K3 / 2-2 of relay K2 is connected to the other end of resistor R5. The other end of point K2 / 3-1 is connected to relay K3, the other end of relay K3 is connected to manual water filling button AN2, contact K2 / 2-2 of relay K2 and contact K2 / 2-1 of relay K2 are respectively connected to the normally closed end and normally open end of the water pump motor control circuit, the other end of manual water filling button AN2 is connected to manual water filling button AN1 and contact K3 / 1-1 of relay K3, the other end of contact K2 / 1-1 of relay K2 is connected to sound and light alarm BJQ, the other end of contact K1 / 1-1 of relay K1 is connected to solenoid valve F1, the other end of resistor R10 is connected to power indicator D4, chip IC1-1, chip IC1-2, chip IC1-2, chip IC1-4 are all 1 / 4 CD4011 chips,Pin 1 of the water level sensor S1 is the common terminal, pin 2 of the water level sensor S1 is the ultra-low water level terminal, pin 3 of the water level sensor S1 is the low water level terminal, and pin 4 of the water level sensor S1 is the high water level terminal.

[0046] Here’s how it works:

[0047] 1. Turn on the K5 main switch, the control box is powered on, and the power indicator LED D4 lights up, indicating that AC220v and DC24v are normal.

[0048] 2. When used for the first time, since there is no water in the water tank, S1-2 is high, pins 1 and 2 of IC1 are high, pin 4 is high, N2 is turned on, K2 is attracted, and the sound and light alarm sounds an alarm. At the same time, pin 4 is high, D1 forces pins 8 and 9 to be high in one direction, and pin 10 is low. N1 is cut off and K1 is in a forced release state. At this time, the system enters the ultra-low water level protection state to protect the solenoid valve from being damaged due to long-term power-on. At the same time, K2 / 2-1 and K2 / 2-1 (normally open or normally closed nodes are optional) output node signals to the pump motor start control circuit to prevent it from starting to protect the pump motor.

[0049] 3. Pressing AN1 now causes K3 to energize K3 / 1-1, creating a lock. K3 / 2-2 opens, releasing the forced high level on pins 8 and 9 from pin 4. Pins 12 and 13 reach high levels, pins 8 and 9 reach low levels, and pin 10 reaches high. NI conducts, energizing K1, opening solenoid valve F1 and beginning to fill the tank. When the water level exceeds the ultra-low level at S1-2, pins 1 and 2 of IC1 reach low levels, and pin 4 also reaches low levels. N2 turns off, releasing K2, and the audible and visual alarms are deactivated. K2 / 3-1 then opens, releasing K3's lock, and K3 / 2-2 closes. Because D2 conducts unidirectionally, the low level at pin 4 has no effect on the levels at pins 8 and 9, and the system enters automatic operation. During manual filling, pressing AN2 releases K3, halting filling.

[0050] 4. Rising Water Level Control Process: The water level continues to rise. Pins 12 and 13 are high, and pin 10 is also high. N1 remains on, K1 is engaged, and solenoid valve F1 remains open, allowing the tank to continue filling. When the water level exceeds the low water level at S1-3, K1 / 2-2 opens, pin 12 goes low, pin 13 goes high, pin 11 remains low, and pin 10 remains high. The aforementioned filling process remains unchanged. When the water level reaches the high water level at S1-4, pins 12 and 13 are both low, pin 11 is high, and pin 10 is low. N1 is turned off, and K1 is released. The solenoid valve loses power and closes, completing filling. Simultaneously, K1 / 2-2 closes, preparing for falling water level control.

[0051] 5. Falling water level control process: When the water level drops below the upper water level S1-4, S1-4 is high, but S1-3 is low. Since K1 is released, K1 / 2-2 is closed, 12 and 13 pins are shorted and simultaneously low. Pin 11 is high, and pin 10 remains low. N1 continues to cut off K1 and releases it. The solenoid valve loses power and does not inject water. Until the water level drops below the low water point of S1-3, 12 and 13 are both high, pin 11 is low, and pin 10 is high. NI is turned on and K1 is attracted. Solenoid valve F1 is energized to open, and the water tank begins to fill with water. At the same time, K1 / 2-2 normally closed point opens, preparing for rising water level control.

[0052] 6. The control process of the reserved submersible pump is opened and closed by k1 / 3-1 through controlling the K3 AC contactor coil package, and the action process and timing are synchronized with the F1 solenoid valve.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0054] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fully automatic control device for lifting water pump water diversion, comprising a water storage tank, a water level sensor, a solenoid valve, an external pressure water source, an audible and visual alarm, and a control box, characterized in that: The main inlet and outlet interface of the water storage tank is connected to the water outlet end of the centrifugal water pump through a docking flange, the water level sensor and the outlet side of the solenoid valve are installed on the water storage tank and connected to the control box through a cable, the external pressure water source is connected to the water inlet side of the solenoid valve, the control box outputs a protection signal, which is connected to the control circuit of the centrifugal water pump through a cable, and an audible and visual alarm is connected to the outside of the control box through a cable; The control box is equipped with a monitoring control circuit, which detects the water level in the water tank through the water level sensor. When the water level in the water tank is seriously insufficient, the control box sends an alarm signal, drives the sound and light alarm to send out an alarm prompt, and at the same time cuts off the starting control circuit of the centrifugal water pump motor, so that the motor cannot start, thereby protecting the centrifugal water pump; The monitoring control circuit includes a chip IC1-1, a chip IC1-4, a transistor N1, a transistor N2, a relay K1 and a relay K2. Pin 1 of the chip IC1-1 is connected to pin 2 of the chip IC1-1, a resistor R1 and pin 2 of the water level sensor S1. The other end of the resistor R1 is connected to the resistor R2 and the power supply VCC. The other end of the resistor R2 is connected to the contact K1 / 2-2 of the relay K1, the pin 13 of the chip IC1-4 and the pin 4 of the water level sensor S1. The pin 1 of the water level sensor S1 is grounded. The pin 3 of the water level sensor S1 is connected to the resistor R3, the other end of the contact K1 / 2-2 of the relay K1 and the pin 12 of the chip IC1-4. The other end of the resistor R3 is connected to the cathode of the diode D2, the cathode of the diode D3, the relay K1 and the pin 13 of the chip IC1-4. K1, relay K2, contact K2 / 3-1 of relay K2, contact K2 / 1-2 of relay K2, contact K1 / 3-2 of relay K1, resistor R10 and switching power supply B1. Switching power supply B1 is also connected to 220V power supply through air switch K5. Contact K4 / 1-1 of relay K4, contact K4 / 2-1 of relay K4 and submersible pump M1 are connected in series to form a control circuit connected to both ends of the 220V power supply. Contact K1 / 3-1 of relay K1 and AC contactor are connected in series to form a control circuit connected to both ends of the 220V power supply. The anode of diode D2 is connected to the collector of transistor N1 and the other end of relay K1. The other end of transistor N1 is connected to pin 10 of chip IC1-3 through resistor R6. The anode of diode D3 is connected to the collector of transistor N1 and the other end of relay K1. The other end of transistor N2 is connected to the collector of transistor N2 and the other end of relay K2. The other end of transistor N2 is connected to pin 4 of chip IC1-2 and contact K3 / 2-2 of relay K3 through resistor R9. Pin 5 of chip IC1-2 is connected to pin 6 of chip IC1-2 and resistor R8. The other end of resistor R8 is connected to capacitor C2 and resistor R7. The other end of resistor R7 is connected to pin 3 of chip IC1-1. Pin 8 of chip IC1-3 is connected to pin 5 of chip IC1-2 and resistor R5. The other end of resistor R5 is connected to capacitor C1, resistor R4 and the cathode of diode D1. The other end of resistor R4 is connected to pin 11 of chip IC1-4. The anode of diode D1 is connected to the other end of contact K3 / 2-2 of relay K3. The contact of relay K2 The other end of point K2 / 3-1 is connected to relay K3, the other end of relay K3 is connected to manual water filling button AN2, contact K2 / 2-2 of relay K2 and contact K2 / 2-1 of relay K2 are respectively connected to the normally closed end and normally open end of the water pump motor control circuit, the other end of manual water filling button AN2 is connected to manual water filling button AN1 and contact K3 / 1-1 of relay K3, the other end of contact K2 / 1-1 of relay K2 is connected to sound and light alarm BJQ, the other end of contact K1 / 1-1 of relay K1 is connected to solenoid valve F1, the other end of resistor R10 is connected to power indicator D4, chip IC1-1, chip IC1-2, chip IC1-2, chip IC1-4 are all 1 / 4 CD4011 chips,Pin 1 of the water level sensor S1 is the common terminal, pin 2 of the water level sensor S1 is the ultra-low water level terminal, pin 3 of the water level sensor S1 is the low water level terminal, and pin 4 of the water level sensor S1 is the high water level terminal.

2. A fully automatic control device for water diversion of a lifting water pump according to claim 1, characterized in that: The outside of the control box is connected to a submersible pump via a cable.

3. A fully automatic control device for water diversion of a lifting water pump according to claim 2, characterized in that: The water level sensor is formed by one or a combination of probe sensing, mechanical floating, and water pressure detection.

4. The fully automatic control device for water diversion of a lifting water pump according to claim 1, characterized in that: The control box is formed by using one or a combination of analog circuits and logic circuits.

5. The fully automatic control device for water diversion of a lifting water pump according to claim 1, characterized in that: The material of the water storage tank includes one or a combination of metal, polymer material, fiberglass reinforced plastic, glass, concrete and brick-concrete.

6. The fully automatic control device for water diversion of a lifting water pump according to claim 1, characterized in that: The shape of the water storage tank is spherical, square, elliptical, polyhedral or a combination of several shapes.

7. The fully automatic control device for water diversion of a lifting water pump according to claim 1, characterized in that: Use the control box to monitor the control circuit, monitor the water level in the water tank through the water level sensor, and control the opening and closing of the water replenishment solenoid valve to replenish the water in the water tank.

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