CN209353407U - A kind of intelligent frequency-conversion water system - Google Patents

Abstract

The utility model discloses an intelligent frequency conversion water supply system, which comprises a computer and a water supply reservoir. One side of the computer is provided with a PLC. The computer is electrically connected to the PLC through a wire, and the PLC is electrically connected to a frequency converter through a wire. , one side of the frequency converter is provided with a power supply, the power supply is electrically connected to the frequency converter through a first connection line, a second connection line and a third connection line, and the first connection line, the second connection line and the The third connecting line is provided with a switch, the water supply reservoir is provided with three conduits, and the water supply reservoir is fixedly connected to one end of the conduits, the three conduits are all provided with a water pump, and the frequency converter passes through the first wire, the second The second wire and the third wire are electrically connected to the three water pumps, and the water supply reservoir is fixedly connected to the water point through a conduit. The utility model writes a program for the PLC through a computer, so that the PLC can control the operation of the entire intelligent frequency conversion water supply system, thereby achieving the purpose of intelligent frequency conversion water supply.

Description

An intelligent frequency conversion water supply system

technical field

The utility model relates to the technical field of water supply systems, in particular to an intelligent frequency conversion water supply system.

Background technique

The frequency conversion water supply system is a complete set of water supply system that is directly connected to the municipal pipe network without affecting the municipal pipe network. On the basis of ZBH frequency conversion and constant pressure, the equipment superimposes the pressure of the municipal pipe network and the pressure of the lifting pump to make domestic water supply more energy-saving and environmentally friendly. It is an ideal replacement system for traditional secondary water supply.

Traditional frequency conversion lacks intelligence in frequency conversion water supply, lacks a central controller that can control the entire frequency conversion water supply system, and can only manually adjust and monitor the frequency conversion water supply system in real time, which not only wastes too much human resources, Moreover, the efficiency of water supply is not very high, and the purpose of energy saving cannot be achieved.

Utility model content

The purpose of this utility model is to provide an intelligent frequency conversion water supply system to solve the problem of lack of intelligence in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: an intelligent frequency conversion water supply system, including a computer and a water supply reservoir, one side of the computer is provided with a PLC, the computer is electrically connected to the PLC through a wire, and the PLC It is electrically connected to the frequency converter through a wire, and one side of the frequency converter is provided with a power supply, and the power supply is electrically connected to the frequency converter through a first connection line, a second connection line and a third connection line, and the first The connection line, the second connection line and the third connection line are all provided with switches, and the water supply reservoir is provided with three conduits, and the water supply reservoir is fixedly connected with one end of the conduits, and the three conduits are all provided with water pumps, and the The frequency converter is electrically connected to the three water pumps through the first wire, the second wire and the third wire, the water supply reservoir is fixedly connected to the water point through a conduit, and a pressure sensor is installed on one side of the water point, and the pressure sensor is set on the catheter.

Preferably, the first connecting wire, the second connecting wire and the third connecting wire are respectively electrically connected to the first electric wire, the second electric wire and the third electric wire through the frequency converter.

Preferably, the first electric wire, the second electric wire and the third electric wire are all electrically connected to three water pumps.

Preferably, the pressure sensor is electrically connected to the PLC through wires.

Preferably, a valve is arranged on one side of the water point, and the valve is arranged on the conduit.

Preferably, the PLC is located between the computer and the frequency converter.

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

1. The utility model writes a program for the PLC through a computer, so that the PLC can control the operation of the entire intelligent frequency conversion water supply system, program the PLC through the computer, so that the PLC can control the frequency converter, and control the three water pumps through the frequency converter , the pressure sensor monitors the pressure at the outlet conduit of the intelligent water supply system, and transmits the pressure data at the outlet conduit of the intelligent water supply system to the PLC through the pressure sensor, so that the PLC can compare the pressure data at the outlet conduit of the intelligent water supply system with the start of the pump Pressure value, so as to achieve the purpose of intelligent frequency conversion water supply.

2. The inverter can be set to change the working power frequency of the pump to control the speed of the three water pumps, so as to perform frequency conversion water supply work. The inverter is electrically connected to the PLC, so that the PLC can effectively control the frequency conversion of the inverter. Control, so as to achieve the purpose of intelligent frequency conversion water supply.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the circuit diagram between the frequency converter of the present utility model and the water pump;

Fig. 3 is the overall work flowchart of the utility model.

In the figure: 1. computer; 2. wire; 3. PLC; 4. frequency converter; 5. power supply; 6. switch; 7. first connection line; 8. second connection line; 9. third connection line; 10 1. Water supply reservoir; 11. Conduit; 12. Water pump; 13. Pressure sensor; 14. Valve; 15. Water point; 16. First wire; 17. Second wire; 18. Third wire.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Please refer to Figure 1-3, an embodiment provided by the utility model: an intelligent frequency conversion water supply system, including a computer 1 and a water supply reservoir 10, the computer 1 plays the role of programming the PLC3, and the water supply reservoir 10 plays the role of water supply , one side of the computer 1 is provided with a PLC3, PLC3 is a programmable logic controller, which controls the entire intelligent frequency conversion water supply system through the programming of the computer 1, the computer 1 is electrically connected to the PLC3 through the wire 2, and the PLC3 is connected to the frequency converter through the wire 2 4 Electrically connected, one side of the frequency converter 4 is provided with a power supply 5, the power supply 5 provides electric energy for the intelligent frequency conversion water supply system, the power supply 5 is connected to the frequency conversion through the first connecting line 7, the second connecting line 8 and the third connecting line 9 The device 4 is electrically connected, and the first connection line 7, the second connection line 8 and the third connection line 9 are all provided with a switch 6, and the switch 6 functions as the first connection line 7, the second connection line 8 and the third connection line. Line 9 is energized, three conduits 11 are arranged on the opening and closing water supply reservoir 10, and the water supply reservoir 10 is fixedly connected with one end of the conduits 11, the three conduits 11 are all provided with water pumps 12, and the frequency converter 4 passes through the first electric wire 16, the second The second wire 17 and the third wire 18 are electrically connected to the three water pumps 12. The water supply reservoir 10 is fixedly connected to the water point 15 through the conduit 11. A pressure sensor 13 is arranged on one side of the water point 15, and the pressure sensor 13 is arranged on the conduit 11. Above, the pressure sensor 13 plays a role in real-time detection of the pressure at the outlet conduit 11 of the intelligent water supply system.

Further, the first connecting wire 7, the second connecting wire 8 and the third connecting wire 9 are respectively electrically connected to the first electric wire 16, the second electric wire 17 and the third electric wire 18 through the frequency converter 4, the first connecting wire 7, the third connecting wire Two connecting wires 8 and the third connecting wire 9 are used to control the first electric wire 16, the second electric wire 17 and the third electric wire 18 respectively, and the first connecting wire 7, the second connecting wire 8 and the third connecting wire 9 can effectively The electric energy of the power supply 5 is transmitted to the first wire 16 , the second wire 17 and the third wire 18 , so that the first wire 16 , the second wire 17 and the third wire 18 can effectively control the operation of the three water pumps 12 .

Further, the first electric wire 16, the second electric wire 17 and the third electric wire 18 are all electrically connected with three water pumps 12, each of the first electric wire 16, the second electric wire 17 and the third electric wire 18 has three branch circuits, and the three Each branch circuit is electrically connected with the three water pumps 12 respectively, so that the frequency converter 4 connected to one end of the first electric wire 16, the second electric wire 17 and the third electric wire 18 can control the three water pumps 12, and the frequency converter 4 can control the three water pumps 12 by changing the The working power supply 5 frequency of 12 controls the rotating speed of three water pumps 12, thereby carries out the water supply work of frequency conversion.

Further, the pressure sensor 13 is electrically connected to the PLC3 through the wire 2, the pressure sensor 12 can play the role of monitoring the pressure at the outlet conduit 11 of the intelligent water supply system, and the pressure data at the outlet conduit 11 of the intelligent water supply system is passed through the pressure sensor 13. The wire 2 is transmitted to the PLC3, so that the PLC3 can compare the pressure data at the water outlet conduit 11 of the intelligent water supply system with the starting pressure value of the water pump 12, so as to perform control in accordance with the program.

Further, one side of the water point 15 is provided with a valve 14, and the valve 14 is arranged on the conduit 11, and the valve 14 on the one side of the water point 15 is used to control the opening and closing of the water outlet of the conduit 11, so that the user can control the water outlet of the conduit 11. The flow can be freely controlled.

Further, the PLC3 is located between the computer 1 and the frequency converter 4, and the PLC3 is programmed through the computer 1, so that the PLC3 can control the frequency converter 4, and the three water pumps 12 can be controlled through the frequency converter 4, so that the PLC3 can control the entire intelligent frequency conversion The operation of the water supply system, so as to achieve the purpose of intelligent frequency conversion water supply.

Working principle: When in use, program PLC3 through computer 1, and electrically connect frequency converter 4 and pressure sensor 13 to PLC3 through wire 2, and the pressure detected by pressure sensor 13 at the outlet conduit 11 of the system is lower than the starting pressure of water pump 12 value, transmit the pressure data to PLC3, and after PLC3 receives the signal, it controls the frequency converter 4 to automatically adjust the speed of the water pump 12 to keep the outlet pressure of the conduit 11 constant, and the water pump 12 runs at the power frequency speed but the pressure does not reach the set pressure At this time, the intelligent variable frequency water supply system starts and stops the two water pumps 12 in sequence. As the water consumption decreases and the outlet pressure rises, the speed of the water pump 12 gradually decreases. Stop the operation of the three water pumps 12 in three orders to complete the work of intelligent frequency conversion water supply.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. a kind of intelligent frequency-conversion water system, including computer (1) and for reservoir (10), it is characterised in that: the computer (1) Side be provided with PLC(3), the computer (1) is electrically connected by conducting wire (2) and PLC(3), the PLC(3) by leading Line (2) and frequency converter (4) are electrically connected, and the side of the frequency converter (4) is provided with power supply (5), and the power supply (5) is logical It crosses the first connecting line (7), the second connecting line (8) and third connecting line (9) and frequency converter (4) is electrically connected, and the first connecting line (7), it is provided with switch (6) on the second connecting line (8) and third connecting line (9), it is described for being provided with three on reservoir (10) Conduit (11), and be fixedly connected for reservoir (10) with one end of conduit (11), water pump is provided on three conduits (11) (12), the frequency converter (4) passes through the first electric wire (16), the second electric wire (17) and third electric wire (18) and three water pump (12) electricity Property connection, described to be fixedly connected by conduit (11) with water spot (15) for reservoir (10), the side with water spot (15) is set It is equipped with pressure sensor (13), and pressure sensor (13) is arranged on conduit (11).

2. a kind of intelligent frequency-conversion water system according to claim 1, it is characterised in that: first connecting line (7), Two connecting lines (8) and third connecting line (9) by frequency converter (4) respectively with the first electric wire (16), the second electric wire (17) and third Electric wire (18) is electrically connected.

3. a kind of intelligent frequency-conversion water system according to claim 1, it is characterised in that: first electric wire (16), Two electric wires (17) and third electric wire (18) are electrically connected with three water pumps (12).

4. a kind of intelligent frequency-conversion water system according to claim 1, it is characterised in that: the pressure sensor (13) is logical It crosses conducting wire (2) and PLC(3) is electrically connected.

5. a kind of intelligent frequency-conversion water system according to claim 1, it is characterised in that: the side with water spot (15) It is provided with valve (14), and valve (14) is arranged on conduit (11).

6. a kind of intelligent frequency-conversion water system according to claim 1, it is characterised in that: the PLC(3) it is located at computer (1) between frequency converter (4).