CN203939086U - A kind of SCM Based intelligent pump set control system - Google Patents

Abstract

The utility model discloses an intelligent pump group control system based on a single-chip microcomputer, which comprises a pump group general monitoring terminal and a server connected with the pump group general monitoring terminal. Controllers are connected, and multiple pump controllers are connected to the user's fire control terminal through a local area network. The pump set controller based on the network platform realizes the remote control of the fire protection system. It can collect the operating status of each equipment in the fire protection system in real time and transmit it to the monitoring center, which improves the efficiency of equipment maintenance and enhances the reliability and safety of the fire protection system. The design is reasonable, the cost is low, the use is convenient, the accuracy is high, the reliability is high, and the safety is good, which effectively solves the deficiency of the existing water pump supply and monitoring technology.

Description

An Intelligent Pump Group Control System Based on Single Chip Computer

technical field

The utility model belongs to the field of water supply systems, in particular to an intelligent pump group control system based on a single-chip microcomputer.

Background technique

With the increase of high-rise buildings in domestic cities, the time period for urban residents' domestic water is concentrated, and water supply for high-rise users has become a concern. Enterprises in industrial parks have concentrated production water, and the water pressure of the water supply network is insufficient. In the field of urban planning, urban water use not only involves industrial production and daily life, but also occupies a considerable proportion in urban fire protection. Therefore, the rationality and scientificity of urban water use is very important. In order to meet the production needs and save energy, we need to use less equipment to complete a large amount of uninterrupted water supply needs. The past storage tank-relay control pump pressurized water supply system is slightly behind the electric self-control pump group realized by the single chip microcomputer. The water supply method of the pressure water tank can be Energy saving and efficient provision of water required for production. Although the system has been used for a long time, it has been used for a long time in the secondary water supply of our country because the technology is not complicated and the equipment is simple. After the 1990s, many high-rise buildings gradually adopted the water supply system of "water storage tank + frequency conversion speed regulating water pump". The low-floor users of this system are still directly supplied with water by the municipal pipe network. For high-floor users, by setting the water supply pressure of the water pump, under the control of the frequency converter, the speed of the water pump changes with the change of the water supply. This system The biggest advantage is that the water pressure is constant, avoiding excessive changes in water pressure for users on high floors. This kind of water supply system has superior performance, good constant pressure effect, and relatively energy-saving, but the system is more complicated and the investment is larger, so it is suitable for use in occasions with relatively high requirements for water supply.

In recent years, with the rapid development of science and technology, the application of computer control technology continues to deepen, driving the control technology to change with each passing day. Current research on water supply control and the systems that have been developed have their own strengths. With the development of microchip technology and frequency conversion technology, the equipment is simple, less investment, high reliability, and strong anti-interference ability. The normal operation of the water pump directly affects the last hurdle of urban water security - fire water, so real-time monitoring and intelligent control of each water pump are very necessary. The current water use of urban fire protection systems has problems such as scattered information sources, difficult maintenance, high cost, and lack of effective monitoring methods. At the same time, with the increasing tension of the earth's resources, the application of energy-saving technology has attracted more and more attention. Whether intelligent control technology can be applied in the field of pump water supply to improve pump performance and water supply quality while saving energy and reducing consumption has become a research direction.

Utility model content

The technical problem to be solved by the utility model is to provide an intelligent pump group control system based on a single-chip microcomputer for the deficiencies in the above-mentioned prior art. The utility model has the advantages of reasonable design, low cost, convenient use, high precision, high reliability and good safety, and effectively solves the deficiency of the existing water pump supply and monitoring technology.

In order to solve the above technical problems, the technical solution adopted by the utility model is: an intelligent pump group control system based on a single-chip microcomputer, which includes a general monitoring terminal of the pump group and a server connected to the general monitoring terminal of the pump group. The server is connected to the database, and the server is also connected to multiple pump controllers through the wide area network, and the multiple pump controllers are all connected to the user's fire control terminal through the local area network.

The above-mentioned intelligent pump group control system based on single-chip microcomputer, wherein: the pump group controller includes a microprocessor and a power supply module connected to the microprocessor, and the input terminal of the microprocessor is connected to the liquid level meter and the flow meter It is connected with the pressure gauge, and the output end of the microprocessor is connected with the water inlet solenoid valve, the test solenoid valve and the water outlet solenoid valve.

The above-mentioned intelligent pump group control system based on a single-chip microcomputer, wherein: the microprocessor is a MSP430 series single-chip microcomputer.

In the above-mentioned intelligent pump group control system based on a single-chip microcomputer, the objects controlled by the pump group controller are the water storage tank, the high-pressure pump and the pressure-stabilizing pump.

The above-mentioned intelligent pump group control system based on a single-chip microcomputer, wherein: the input end of the test solenoid valve is connected to the front end of the water outlet solenoid valve, and the output end of the test solenoid valve is connected to the water storage tank.

The above-mentioned intelligent pump group control system based on a single-chip microcomputer, wherein: the water inlet solenoid valve is connected to the front end of the water storage tank.

The above-mentioned intelligent pump group control system based on a single-chip microcomputer, wherein: the flowmeter and the pressure gauge are arranged in the water pipe at the front end of the water outlet solenoid valve.

In the above-mentioned intelligent pump group control system based on a single-chip microcomputer, the liquid level gauge is arranged in the water storage tank.

In the above-mentioned intelligent pump group control system based on a single-chip microcomputer, the high-pressure pump and the pressure-stabilizing pump are connected in parallel and arranged between the water outlet solenoid valve and the water storage tank.

The above-mentioned intelligent pump group control system based on a single-chip microcomputer, wherein: the water storage tank includes a first water storage tank and a second water storage tank that are separated from each other;

The second water storage tank is connected to the first water storage tank through a first pipeline and a first electric valve arranged on the first pipeline, the first electric valve is connected to the microprocessor, and the microprocessor sends The first electric valve sends a signal to control the opening of the first electric valve; the first water storage tank and the second water storage tank are connected through a second pipeline and a second electric valve on the second pipeline, and the second electric valve The microprocessor is also connected, and the microprocessor sends a signal to the second electric valve to control the opening of the second electric valve.

Compared with the prior art, the utility model has the following advantages:

1. The utility model has the functions of information collection of the pump group, real-time transmission of status report through the Internet, automatic fault detection and other functions, which improves the maintenance efficiency and reduces the manual maintenance cost.

2. The utility model monitors and manages the pump group hierarchically, improves the accuracy of system monitoring, and enhances the reliability and safety of its use.

To sum up, the utility model has the advantages of reasonable design, low cost, convenient use, high precision, high reliability and good safety, and effectively solves the deficiencies of the existing water pump supply and monitoring technology.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

Fig. 1 is the overall structural block diagram of the utility model.

Fig. 2 is a block diagram of the electrical connection of the pump set controller of the present invention.

Fig. 3 is a schematic diagram of the control flow of the pump set controller of the present invention.

Fig. 4 is a structural schematic diagram of a water storage tank of the present invention.

Explanation of reference signs:

1-General monitoring terminal of pump unit; 2-Server; 3-Database; 4-User fire control terminal; 5-Pump unit controller; 5-1-Water storage tank; 5-2-High pressure pump; Pump; 5-4-water inlet solenoid valve; 5-5-liquid level gauge; 5-6-test solenoid valve; 5-7-flow meter; 5-8-pressure gauge; 5-9-water outlet solenoid valve; 5 -10-microprocessor; 5-11-power supply module.

Detailed ways

As shown in Figure 1, the utility model comprises a pump group total monitoring terminal 1 and a server 2 connected with the pump group total monitoring terminal 1, the server 2 is connected with a database 3, and the server 2 also communicates with the database through a wide area network. Multiple pump set controllers 5 are connected, and the multiple pump set controllers 5 are all connected to the user's fire control terminal 4 through a local area network.

The pump manufacturer can monitor and query the information of the pumps sold by the company through the total monitoring terminal 1 of the pumps in real time, including the running time of the pumps, the latest test results, alarm status, etc., so as to facilitate the tracking of the pumps. Once an abnormal alarm is received, the user information, geographical location, etc. of the pump group can be queried through the database 3, so as to inform the user in time to deal with it. The pump set controller 5 is connected to the server 2 through a socket interface, and can transmit information such as pump set status and alarms to the pump set general monitoring terminal 1 in real time. The user fire control center connects the pump unit controller 5 through the user fire control terminal 4 socket interface, obtains all the pump unit information in the area under its jurisdiction for real-time monitoring, processes the feedback information of the pump unit controller 5 in a timely manner, and quickly reports the pump unit status, alarm and other information Real-time human manipulation, trigger monitoring and other operations, implement remote unified monitoring and management.

As shown in Figure 2, in this embodiment, the pump set controller 5 includes a microprocessor 5-10 and a power supply module 5-11 connected to the microprocessor 5-10, the microprocessor 5-10 The input end is connected with the liquid level gauge 5-5, the flow meter 5-7 and the pressure gauge 5-8, and the output end of the microprocessor 5-10 is connected with the water inlet solenoid valve 5-4, the test solenoid valve 5-6 and the pressure gauge 5-8. The water outlet solenoid valves 5-9 are connected, and the pump unit, the water inlet solenoid valve 5-4, the test solenoid valve 5-6 and the water outlet solenoid valve 5-9 are realized through the high/low level conversion control of the microprocessor 5-10 pins The on/off state conversion, the valve angle of the test solenoid valve 5-6 can be controlled to adjust the flow of the water pipe, the water inlet solenoid valve 5-4 and the water outlet solenoid valve 5-9 are indirectly controlled by solid state relays, which can be controlled with a small current to drive larger current loads. The outputs of test solenoid valve 5-6, flowmeter 5-7 and pressure gauge 5-8 are all 4mA-20mA current, adopt 250 ohm sampling resistor, and then voltage conversion after isolation by isolation element. The liquid level gauge 5-5 can represent different liquid levels by setting corresponding register values, including upper limit water level, intermediate water level and lower limit water level.

In this embodiment, the microprocessors 5-10 are MSP430 series single-chip microcomputers, which are 16-bit low-power single-chip microcomputers with strong data processing capabilities and high cost performance.

As shown in Fig. 3, in this embodiment, the objects controlled by the pump set controller 5 are the water storage tank 5-1, the high pressure pump 5-2 and the pressure stabilizing pump 5-3.

In this embodiment, the input end of the test solenoid valve 5-6 is connected to the front end of the water outlet solenoid valve 5-9, and the output end of the test solenoid valve 5-6 is connected to the water storage tank 5-1.

In this embodiment, in this embodiment, the flowmeter 5-7 and the pressure gauge 5-8 are arranged in the water pipe at the front end of the water outlet solenoid valve 5-9.

In this embodiment, the liquid level gauge 5-5 is arranged in the water storage tank 5-1.

In this embodiment, the high pressure pump 5-2 and the pressure stabilizing pump 5-3 are connected in parallel, and are arranged between the outlet solenoid valve 5-9 and the water storage tank 5-1.

The water electromagnetic valve 5-4 is connected at the front end of the water storage tank 5-1.

According to the foregoing, if the water outlet solenoid valve 5-9 is opened to test the solenoid valve 5-6, the water pump group fire protection system can become a closed-loop self-testing system. The self-test trigger can be divided into two types: the pump group controller 5 triggers according to the set self-test period and artificial trigger. Before the self-test, the water outlet solenoid valve 5-9 needs to be closed to make the fire protection system an internal circulation system. Electromagnetic valve 5-6 reduces the internal pressure of the water pipe to achieve the purpose of pressure relief. After the self-check begins, turn on the high-pressure pump 5-2 and the pressure-stabilizing pump 5-3 in the fire-fighting system one by one, and detect whether the water pressure in the water pipe can be recovered within a certain period of time to reach the expected value, thereby judging whether the fire-fighting pump is normal. If an abnormality is encountered, a local alarm will be triggered, which will be sent to the user's fire control terminal 4 or the general monitoring terminal 1 of the pump group through the network, prompting timely maintenance. After the self-inspection is completed, the self-inspection date, operating status, and total operating time are saved in the database 3 and sent to the total monitoring terminal 1 of the pump set for reference. The pump unit controller 5 also monitors the water pressure in the water pipe in real time, and automatically maintains it at 1MPa-1.5MPa under normal conditions. Once the measured water pressure is lower than the normal range, the voltage stabilization function is turned on. -9 belongs to the normally open state, while the test solenoid valve 5-6 belongs to the normally closed state. The pressure gauge 5-8 monitors the water pipe pressure in real time. If it is lower than 1MPa, it will alarm and start the pressure stabilizing pump 5-3 for a period of time. If still less than 1MPa, then start the high-pressure pump 5-2, if the high-pressure pump 5-2 works for a period of time and still less than 1MPa, then think that the water pipe is broken, and report to the police. The pump group controller 5 controls the liquid level of the water storage tank 5-1 to maintain the upper limit liquid level state. If it is higher than the upper limit, the water inlet electromagnetic valve 5-4 is closed; if it is lower than the upper limit, the water inlet electromagnetic valve 5-4 is opened to increase the storage Water tank 5-1 water volume; Once lower than the lower limit liquid level, if high pressure pump 5-2 and stabilizing pump 5-3 work, then need to close. The pump set controller 5 reads the value of the liquid level gauge 5-5 in real time and sends it to the general monitoring terminal 1 of the pump set and the user fire control terminal 4 through the network.

In order to keep the cleanness of the water quality in the water storage tank 5-1 and avoid the water pollution caused by the long-term stagnation of the water in the water storage tank, the utility model provides a new type of water storage tank 5-1, as shown in Figure 4. The water storage tank 5-1 includes a first water storage tank and a second water storage tank that are separated from each other. The second water storage tank is connected to the first water storage tank through a first pipeline and a first electric valve arranged on the first pipeline, and the first electric valve is connected to the microprocessor 5-10, and the microprocessor The processor 5-10 sends a signal to the first electric valve to control the opening of the first electric valve so that the water in the second water storage tank flows to the first water storage tank. The first water storage tank and the second water storage tank are connected through a second pipeline and a second electric valve on the second pipeline, and the second electric valve is also connected to the microprocessor 5-10, and the microprocessor 5 -10 Sending a signal to the second electric valve to control the opening of the second electric valve so that the water in the first water storage tank flows to the second water storage tank.

The microprocessor 5-10 controls the water circulation in the first water storage tank and the second water storage tank by controlling the first electric valve and the second electric valve, so as to increase the vitality of the water quality in the water storage tank.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (9)

1. a SCM Based intelligent pump set control system, it is characterized in that: the server (2) that comprises the total monitoring client of pump group (1) and join with the total monitoring client of described pump group (1), described server (2) joins with database (3), described server (2) also joins by wide area network and multiple pump group controller (5), and described multiple pump group controllers (5) all join by LAN and user's fire-fighting control end (4).

2. according to the SCM Based intelligent pump set control system of the one described in claims 1, it is characterized in that: described pump group controller (5) comprises microprocessor (5-10) and the power module (5-11) being connected with microprocessor (5-10), the input of described microprocessor (5-10) is connected with content gauge (5-5), flow meter (5-7) and pressure gauge (5-8), the output of described microprocessor (5-10) and entering water electromagnetic valve (5-4), test electromagnetic valve (5-6) and go out water solenoid valve (5-9) and be connected; Described microprocessor (5-10) is MSP430 series monolithic.

3. according to the SCM Based intelligent pump set control system of the one described in claims 2, it is characterized in that: the object that described pump group controller (5) is controlled is storage tank (5-1), high-pressure pump (5-2) and stabilized pressure pump (5-3).

4. according to the SCM Based intelligent pump set control system of the one described in claims 4, it is characterized in that: the input of described test electromagnetic valve (5-6) is connected to out water solenoid valve (5-9) front end, the output of test electromagnetic valve (5-6) is connected to storage tank (5-1).

5. according to the SCM Based intelligent pump set control system of the one described in claims 4, it is characterized in that: described entering water electromagnetic valve (5-4) is connected to storage tank (5-1) front end.

6. according to the SCM Based intelligent pump set control system of the one described in claims 4, it is characterized in that: described flow meter (5-7) and pressure gauge (5-8) are arranged on out in the conduit pipeline of water solenoid valve (5-9) front end.

7. according to the SCM Based intelligent pump set control system of the one described in claims 4, it is characterized in that: described content gauge (5-5) is arranged in storage tank (5-1).

8. according to the SCM Based intelligent pump set control system of the one described in claims 4, it is characterized in that: described high-pressure pump (5-2) and stabilized pressure pump (5-3) are connected in parallel, and be arranged on out between water solenoid valve (5-9) and storage tank (5-1).

9. according to the SCM Based intelligent pump set control system of the one described in claims 4, it is characterized in that: described storage tank comprises the first storage tank and the second storage tank that are separated from each other;

Described the second storage tank is connected with the first electrically operated valve being arranged on described the first pipeline by the first pipeline with the first storage tank, described the first electrically operated valve connects described microprocessor, described microprocessor, to described the first electrically operated valve transmitted signal, is controlled opening of the first electrically operated valve; Described the first storage tank is connected with the second electrically operated valve on second pipe by second pipe with the second storage tank, described the second electrically operated valve also connects described microprocessor, described microprocessor, to described the second electrically operated valve transmitted signal, is controlled the second electrically operated valve and is opened.