Water well water supply device

Abstract

The utility model relates to a well water supply device which comprises a main station control unit, each well comprises a water supply pump, a butterfly valve, a liquid level sensor, a temperature sensor, a flow sensor, a pressure sensor, a main loop and a substation control unit, the water supply pump and the butterfly valve are connected with the main loop, the main loop is connected with the substation control unit, the liquid level sensor is arranged in the well, and the temperature sensor is arranged in the substation control unit. The water supply pump, the butterfly valve, the temperature sensor, the flow sensor and the pressure sensor are arranged on a water supply pipeline of a water well, the water supply pump, the butterfly valve, the liquid level sensor, the temperature sensor, the flow sensor and the pressure sensor are respectively connected with the substation control unit, and the substation control unit is connected with the main station control unit. The system has the advantages that the liquid level sensor is arranged in the water well, the substation control unit is used for collecting water well data information and transmitting the water well data information to the master station CPU, maintenance personnel can conveniently check the state of the water well at any time through the HMI man-machine interaction screen, and if a set value is exceeded, the HMI man-machine interaction screen gives an alarm prompt.

Description

Technical Field

[0001] The utility model relates to the field of steel smelting, in particular to a well water supply device. Background Art

[0002] The high-line central pump room of a steel rolling mill is responsible for providing turbid ring cooling water, clean ring cooling water and softened water to the rolling line. The water wells include turbid ring hot water wells, turbid ring cold water wells, clean ring hot water wells, clean ring cold water wells and soft water wells. The locations of the water wells are scattered. The operators manually start and stop the water supply pumps and butterfly valves by the on-site machine. Since there are no detection components, the operators rely on on-site inspections to check the water supply status of the water wells. It often happens that the operators fail to discover the low liquid level in the water wells in time, resulting in low pressure in the water supply pipeline, the rolling mill stopping and causing malfunctions. It often happens that the operators fail to discover the low liquid level in the water wells in time, resulting in high overflow, affecting the smooth production and wasting manpower and material resources. Summary of the invention

[0003] The purpose of the utility model is to provide a water well water supply device, the detection element of the water well is connected to the substation control unit, the substation control unit is connected to the main station control unit, the data information of the detection element of each water well is transmitted to the main station control unit, and there is no need for on-site inspection by operating personnel, which saves time and effort.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A water well water supply device includes several water wells and a main station control unit. Each water well includes a water supply pump, a butterfly valve, a liquid level sensor, a temperature sensor, a flow sensor, a pressure sensor, a main circuit, and a substation control unit. The water supply pump and the butterfly valve are connected to the main circuit, and the main circuit is connected to the substation control unit. The liquid level sensor is arranged in the water well, and the water supply pump, the butterfly valve, the temperature sensor, the flow sensor, and the pressure sensor are arranged on the water supply pipeline of the water well. The water supply pump, the butterfly valve, the liquid level sensor, the temperature sensor, the flow sensor, and the pressure sensor are respectively connected to the substation control unit, and the substation control unit of each water well is connected to the main station control unit.

[0006] The main circuit includes main circuit one and main circuit two. Main circuit one includes a soft starter. The power input terminal of the soft starter is connected to the three-phase AC power supply. The output terminal one of the soft starter is connected to the water supply pump. The output terminal two of the soft starter is connected to the output terminal one of the soft starter through the main contact of the bypass contactor. The main circuit two includes an overheating relay and a forward contactor connected to the butterfly valve in sequence. The main circuit two also includes a reverse contactor. The main contact of the forward contactor is connected between the three-phase AC power supply and the butterfly valve to form a forward connection mode. The main contact of the reverse contactor is connected between the three-phase AC power supply and the butterfly valve to form a reverse connection mode.

[0007] The substation control unit includes communication module four, digital input module, digital output module, and analog input module. Communication module four, digital input module, digital output module, and analog input module are connected through ports. The main station control unit includes CPU module, communication module one, communication module two, communication module three, and switch. CPU module, communication module one, communication module two, and communication module three are connected through ports. The switch is connected to communication module one, and communication module four of each substation control unit is connected to the switch.

[0008] The digital output module is connected to the coil of the relay group respectively, the normally open contacts of the relay group are connected to the coil of the forward contactor, the coil of the reverse contactor, the coil of relay one, and the alarm respectively, the normally open contact one and the normally open contact two of the soft starter control port are connected to the coil of relay two and the coil of the bypass contactor respectively, the normally open contact of relay one is connected to the soft starter control port, the digital input module is connected to the normally open auxiliary contact of the forward contactor, the normally open auxiliary contact of the reverse contactor, the normally open auxiliary contact of the bypass contactor, the normally open contact of relay two, and the normally open auxiliary contact of the overheating relay through the port respectively, and the analog input module is connected to the liquid level sensor, the temperature sensor, the flow sensor, and the pressure sensor through the port respectively.

[0009] The main station control unit also includes a wireless communication module, which is connected to communication module three through a port, and the wireless communication module is wirelessly connected to the cloud server. The cloud server saves data information to the cloud management center through communication, and the cloud management center is connected to the mobile device through communication.

[0010] A relay group includes several relays.

[0011] The main circuit also includes a circuit breaker three, the input end of the circuit breaker three is connected to the three-phase AC power supply, and the output end of the circuit breaker three is used to provide a working power supply one.

[0012] The substation control unit also includes a power module, which is used to provide a second working power supply.

[0013] The main station control unit and the substation control unit are both PLCs.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The substation control unit is connected to the main station control unit through a communication module, which saves the number of cables to be laid, has a simple structure and is easy to maintain;

[0016] 2. The temperature sensor, flow sensor, and pressure sensor are installed on the water supply pipe of the water well, and the liquid level sensor is installed in the water well. The analog input module of the substation control unit is used to collect data information of the temperature sensor, liquid level sensor, flow sensor, and pressure sensor and transmit it to the main station CPU module, so that the maintenance personnel can check the temperature, flow, liquid level, and pressure status of the water supply pipe at any time through the HMI human-computer interaction screen. If the set value is exceeded, the HMI human-computer interaction screen will have an alarm prompt;

[0017] 3. The substation control unit is respectively set in the control box of the pump room of each water well and connected to the main station control unit, with low transformation cost, simple operation and easy implementation;

[0018] 4. Operators can establish a network connection with the wireless communication module through a mobile phone or PC, receive data information on liquid level, flow, and pressure sent by the main station control unit, and control the start and stop of the water supply pump and butterfly valve at any time, saving time and effort;

[0019] 5. Operators can start and stop water supply pumps and butterfly valves individually through the HMI human-machine interactive screen, without the need for start-stop equipment next to the machine, making the operation simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a well water supply device.

[0021] Figure 2 This is the main circuit principle diagram.

[0022] Figure 3 It is a schematic diagram of the control circuit principle.

[0023] In the figure: 1- water supply pump 2- butterfly valve 3- flow sensor 4- pressure sensor 5- liquid level sensor 6- temperature sensor. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the accompanying drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0025] The following examples are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0026] [Example 1]

[0027] The high-speed wire project water is responsible for providing clean water and turbid water to the rolling line. The water wells include turbid hot water wells, turbid cold water wells, clean hot water wells, clean cold water wells, and soft water wells. The locations of the water wells are scattered, and each water well is equipped with a water supply pump and butterfly valve. The operators manually start and stop the water supply pump and butterfly valve by the on-site machine. There is no detection equipment, and the operators rely on on-site inspections to observe the water supply status of the water wells. Figure 1 to Figure 3A water supply device for a water well, each water well includes a water supply pump 1, a butterfly valve 2, a detection element, a main circuit, and a substation control unit. The detection element includes a liquid level sensor 5, a temperature sensor 6, a flow sensor 3, and a pressure sensor 4. The water supply pump 1, the butterfly valve 2, the temperature sensor 6, the flow sensor 3, and the pressure sensor 4 are arranged on the water supply pipeline of the water well, and a liquid level sensor 5 is arranged in each water well; a master station control unit is arranged in the central control room, and the master station control unit adopts a PLC master station, and a substation control unit is arranged in the control box of each water well pump room; the substation control unit can adopt a PLC slave station, and the PLC slave station includes a communication Module 4, digital input module, digital output module, analog input module, power module, the power module is used to provide working power DC24V, the substation control unit can also use a gateway and an acquisition board, the gateway and the acquisition board are connected through the CAN port, the acquisition board model is CQ-CANBUS, and the acquisition board is provided with a CAN port; the main station control unit includes a CPU module, a communication module 1, a communication module 2, a communication module 3, a switch, and a wireless communication module. The CPU module, the communication module 1, the communication module 2, and the communication module 3 are connected through a port, and the switch is connected to the communication module 1 through an Ethernet port. The communication module 4 / gateway of each substation control unit is connected to the switch through an Ethernet cable. If the substation control unit is far away from the main station control unit, a fiber optic transceiver is added between the substation control unit and the main station control unit. The fiber optic transceivers are connected through optical fibers. The main station control unit is a PLC. The substation control unit includes a turbid ring hot water well substation control unit, a turbid ring cold water well substation control unit, a clean ring hot water well substation control unit, a clean ring cold water well substation control unit, and a soft water well substation control unit; the communication module 2 is connected to the HMI human-machine interaction screen through an Ethernet port. The HMI human-machine interaction screen is provided with a water supply The start and stop buttons of the pump and butterfly valve, the operator starts and stops the equipment through the HMI human-machine interaction screen; the communication module 3 is connected to the wireless communication module through a port, the wireless communication module is wirelessly connected to the cloud server, the cloud server saves data information to the cloud management center through communication, the cloud management center connects to the mobile device through communication, the wireless communication module is any one or any combination of 5G communication module, 4G communication module, Bluetooth module, WiFi module, GSM module, CDMA module, CDMA module, WCDMA module, TD-SCDMA module, Zigbee module and LoRa module. The operator establishes a network connection with the wireless communication module through a mobile phone or PC, monitors the status information of the temperature sensor, flow sensor, pressure sensor, water supply pump, and butterfly valve in real time, receives the data information of the liquid level, flow, and pressure sent by the main station control unit, and controls the start and stop of the water supply pump and butterfly valve at any time.

[0028] The main circuit includes main circuit 1, main circuit 2, and circuit breaker 3. The input end of circuit breaker 3 is connected to the three-phase AC power supply AC380V, and the output end of circuit breaker 3 is used to provide working power supply AC220V; main circuit 1 includes a soft starter, the power input ends R, S, and T of the soft starter are connected to the three-phase AC power supply AC380V through circuit breaker ZK2, the output ends U, V, and W of the soft starter are connected to the water supply pump 1, and the output ends L21, L22, and L23 of the soft starter are connected to the water supply pump 1 through the bypass contact. The main contacts of the contactor KM3 are connected to the output terminals U, V, and W of the soft starter; the main circuit 2 includes an overheating relay FR, a forward contactor KM1, and a circuit breaker ZK1 which are connected to the butterfly valve 2 in sequence, and the main circuit 2 also includes a reverse contactor KM2. The main contacts of the forward contactor KM1 are connected between the three-phase AC power supply AC380V and the butterfly valve 2 to form a forward connection mode, and the main contacts of the reverse contactor KM2 are connected between the three-phase AC power supply AC380V and the butterfly valve 2 to form a reverse connection mode.

[0029] The digital output modules of the PLC are connected to the coils of relays KA1~KA4 respectively. The normally open contacts of relays KA1~KA4 are connected to the coils of forward contactor KM1, reverse contactor KM2, start-stop relay KR and alarm respectively. The alarm is set outside the control box of each water well. When the liquid level sensor 5, temperature sensor 6, flow sensor 3 and pressure sensor 4 exceed the set value, the alarm rings. The speed normally open contacts output by the soft starter through control ports 1 and 2 and the fault normally open contacts output through control ports 3 and 4 are connected to the coils of fault relay KF and bypass contactor KM3 respectively. One end of the normally open contact of the start-stop relay KR is connected to the control port 8 and control port 4 of the soft starter. The control port 9 is connected, the other end of the normally open contact of the start-stop relay KR is connected to the control port 7, the control port, and the control port 10 of the soft starter. The digital input module of the PLC is respectively connected to the normally open auxiliary contact of the forward contactor KM1, the normally open auxiliary contact of the reverse contactor KM2, the normally open auxiliary contact of the bypass contactor KM3, the normally open contact of the fault relay KF, and the normally open auxiliary contact of the overheating relay FR. The analog input module of the PLC is respectively connected to the liquid level sensor 5, the temperature sensor 6, the flow sensor 3, the pressure sensor 4, and the analog output terminal (X2 and X3) of the soft starter. The analog output terminal (X2 and X3) of the soft starter is used to provide the operating current of the water supply pump 1 and display it on the HMI human-computer interaction screen.

[0030] Working process:

[0031] The principle of the high-speed line central pump room providing turbid ring cooling water to the rolling line is that the rolling line exits the furnace and the roller cooling water of the rough rolling, intermediate rolling, pre-finishing rolling and finishing rolling flows through the pipeline to the high-speed line primary pool, and the turbid ring cooling water is pumped to the turbid ring hot water well through the water inlet pump motor, and then cooled and returned to the turbid ring cold water well through the upper tower water pump, and then the cooling water is pumped to the rolling line water equipment through the turbid ring water supply pump motor to form a circulation. Since the line has 4 high-speed wires, sometimes some equipment is in operation and some is under maintenance, which will cause different water consumption in the turbid ring primary pool, turbid ring hot water well, and turbid ring cold water well; when the water level in the turbid ring cold water well is too low and the water volume of the rolling line is small, the main rolling line equipment will alarm and pile up steel, causing an accident; in order to avoid accidents, a low liquid level sensor is used to add a low liquid level. If it exceeds the set value, an audible and visual buzzer alarm will sound to remind the operator to start the water supply pump motor to replenish water in time; if the turbid ring hot water well and the turbid ring cold water well overflow, it will pollute the environment, waste turbid water, and the energy assessment of the environmental protection department will be carried out. A high liquid level sensor is used to add a high liquid level. If it exceeds the set value, an audible and visual buzzer alarm will be set to remind the operator to adjust the electric valve or stop the water pump motor. The principle of the high-line central pump room providing clean-loop cooling water to the rolling line is that the cooling water of the rolling line DC motor backpack and the cooling water of the lubrication station equipment flow through the pipeline to the high-line clean-loop hot water well, and then return to the cold water well through the upper tower water pump for cooling, and then the cooling water is pumped into the rolling line water equipment through the clean-loop water supply pump motor to form a cycle. Due to the different water consumption, the low water level of the clean-loop hot water well and the clean-loop cold water well will cause shutdown and high water level overflow, reminding the post operators to adjust the water consumption in time to adjust the electric valve to avoid shutdown accidents and energy assessments. The water beam of the heating furnace uses softened water from the pump room. The data information collected by the detection element reminds the post operators to adjust the size of the electric valve switch in time to adjust the water consumption to avoid shutdown accidents and energy assessments. Each water well is equipped with a flow sensor, pressure sensor, and temperature sensor for monitoring on the HMI human-computer interaction screen. If the set value is exceeded, there will be an alarm prompt.

[0032] The utility model substation control unit is connected with the main station control unit through a communication module, which saves the number of cables to be laid, has a simple structure and is easy to maintain; the temperature sensor, flow sensor and pressure sensor are arranged on the water supply pipeline of the water well, and the liquid level sensor is arranged in the water well. The analog input module of the substation control unit is used to collect data information of the temperature sensor, liquid level sensor, flow sensor and pressure sensor and transmit it to the main station CPU module, so that the maintenance personnel can check the temperature, flow, liquid level and pressure status of the water supply pipeline at any time through the HMI human-machine interaction screen. If the set value is exceeded, the HMI human-machine interaction screen will have an alarm prompt; the substation control unit is respectively arranged in the control box of the pump room of each water well, and is connected with the main station control unit, with low modification cost, simple operation and easy implementation; the operating personnel can establish a network connection with the wireless communication module through a mobile phone or a PC, receive the data information of the liquid level, flow and pressure sent by the main station control unit, and control the start and stop of the water supply pump and the butterfly valve at any time, which saves time and effort; the operating personnel can start and stop the water supply pump and the butterfly valve individually through the HMI human-machine interaction screen, without the need for machine-side start and stop equipment, and the operation is simple and convenient.

Claims

1. A water well water supply device, comprising a plurality of water wells, characterized in that: It also includes a main station control unit, and each water well includes a water supply pump, a butterfly valve, a liquid level sensor, a temperature sensor, a flow sensor, a pressure sensor, a main circuit, and a substation control unit. The water supply pump and the butterfly valve are connected to the main circuit, and the main circuit is connected to the substation control unit. The liquid level sensor is arranged in the water well, and the water supply pump, the butterfly valve, the temperature sensor, the flow sensor, and the pressure sensor are arranged on the water supply pipeline of the water well. The water supply pump, the butterfly valve, the liquid level sensor, the temperature sensor, the flow sensor, and the pressure sensor are respectively connected to the substation control unit, and the substation control unit of each water well is connected to the main station control unit.

2. A water well water supply device according to claim 1, characterized in that: The main circuit includes main circuit one and main circuit two. Main circuit one includes a soft starter. The power input end of the soft starter is connected to the three-phase AC power supply. The output end one of the soft starter is connected to the water supply pump. The output end two of the soft starter is connected to the output end one of the soft starter through the main contact of the bypass contactor. The main circuit two includes an overheating relay and a forward contactor connected to the butterfly valve in sequence. The main circuit two also includes a reverse contactor. The main contact of the forward contactor is connected between the three-phase AC power supply and the butterfly valve to form a forward connection mode. The main contact of the reverse contactor is connected between the three-phase AC power supply and the butterfly valve to form a reverse connection mode.

3. A water well water supply device according to claim 1, characterized in that: The substation control unit includes a communication module four, a digital input module, a digital output module, and an analog input module. The communication module four, the digital input module, the digital output module, and the analog input module are connected through a port. The main station control unit includes a CPU module, a communication module one, a communication module two, a communication module three, and a switch. The CPU module, the communication module one, the communication module two, and the communication module three are connected through a port. The switch is connected to the communication module one, and the communication module four of each substation control unit is connected to the switch.

4. A water well water supply device according to claim 3, characterized in that: The digital quantity output module is respectively connected to the coil of the relay group, the normally open contact of the relay group is respectively connected to the coil of the forward contactor, the coil of the reverse contactor, the coil of the relay one, and the alarm, the normally open contact one and the normally open contact two of the soft starter control port are respectively connected to the coil of the relay two and the coil of the bypass contactor, the normally open contact of the relay one is connected to the soft starter control port, the digital quantity input module is respectively connected to the normally open auxiliary contact of the forward contactor, the normally open auxiliary contact of the reverse contactor, the normally open auxiliary contact of the bypass contactor, the normally open contact of the relay two, and the normally open auxiliary contact of the overheating relay through the port, and the analog quantity input module is respectively connected to the liquid level sensor, the temperature sensor, the flow sensor, and the pressure sensor through the port.

5. A water well water supply device according to claim 3, characterized in that: The master station control unit also includes a wireless communication module, which is connected to communication module three through a port, and the wireless communication module is wirelessly connected to the cloud server. The cloud server saves data information to the cloud management center through communication, and the cloud management center is connected to the mobile device through communication.

6. A water well water supply device according to claim 4, characterized in that: The relay group includes a plurality of relays.

7. A water well water supply device according to claim 2, characterized in that: The main circuit also includes a circuit breaker three, the input end of the circuit breaker three is connected to the three-phase AC power supply, and the output end of the circuit breaker three is used to provide a working power supply one.

8. A water well water supply device according to claim 3, characterized in that: The substation control unit also includes a power module, which is used to provide a second working power supply.

9. A water well water supply device according to claim 1, characterized in that: The main station control unit and the substation control unit are both PLCs.

Images