CN111706911A - Intelligent monitoring system for coupling heat supply of dispersed clean heat sources in mining area based on Internet of things - Google Patents
Intelligent monitoring system for coupling heat supply of dispersed clean heat sources in mining area based on Internet of things Download PDFInfo
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- CN111706911A CN111706911A CN202010575027.9A CN202010575027A CN111706911A CN 111706911 A CN111706911 A CN 111706911A CN 202010575027 A CN202010575027 A CN 202010575027A CN 111706911 A CN111706911 A CN 111706911A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
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Abstract
The invention discloses an intelligent monitoring system for coupling heat supply of a dispersed clean heat source in a mining area based on the Internet of things. The heat source comprises return air waste heat, gushing water waste heat and air compressor waste heat. The monitoring system comprises a control center, a network transmission module and a remote device. The control center module comprises a data acquisition system, a field and a remote control. The network transmission module comprises a communication network, a data center and a cloud server. The remote equipment module comprises a computer and a mobile client, and receives the data acquired by the network transmission module. And in case of emergency, the alarm module in the control center module sends a signal to the remote equipment, and the remote equipment issues a maintenance signal. The invention utilizes the control equipment and the remote client to manage the heat supply system, and realizes the subarea time-sharing heat supply and the heat supply network hydraulic balance control by adjusting the heat source output, the water pump motor rotating speed and the adjusting valve opening; the invention saves the field labor and has the advantages of high efficiency, energy saving, intelligence and the like.
Description
Technical Field
The invention belongs to the field of centralized heating systems, and particularly relates to an intelligent monitoring system for coupling heat supply of a dispersed clean heat source in a mining area based on the Internet of things.
Background
The centralized heating refers to a process of providing heat energy to a specific area in a pipe network mode by taking steam or hot water as a heating medium. The central heating system consists of heat source, heat supply network and heat consumer. The central heating radiation radius of the mining area is large, the heat using time of heat users is different, the types of heating media are more, and the primary energy utilization efficiency is not high.
With the continuous consumption of primary energy such as coal and the like and the increasing serious problem of environmental pollution, how to reduce the energy waste in the operation process and improve the utilization efficiency of the primary energy becomes the focus of attention. Coal-fired boilers serving as traditional centralized heat supply heat sources in mining areas are gradually replaced by clean energy sources such as mine waste heat and air source heat pumps, and the trend of vigorously pushing energy-saving transformation technologies is great.
At present, coal mine heating system management is mostly independently controlled, and semi-automatization even full manual management makes the on-the-spot parameter unable in time feed back to the heat source department, and the instantaneous weather change of unable prediction in advance adjusts the heat supply volume, and this all can cause the heating power unbalance, influences the heat supply effect. Different from urban centralized heating, the shift system of three shifts in a mining area enables domestic hot water supply to have a heating period, and heating in mines in severe cold and cold regions needs to be adjusted according to instantaneous temperature changes. Meanwhile, the phenomena of running, overflowing, dripping and leaking in the heat supply operation process cannot be found in time for processing, and the maintenance difficulty of a heat supply pipe network in a mining area is high. Therefore, there is a need to provide a monitoring technique to overcome the shortcomings of the existing manual management.
Further, an information-based central heating system has been developed. The centralized heating network system integrates the Internet of things technology, the measurement and control technology, the sensing technology, the data communication technology, the cloud computing and the related centralized heating theory into a whole, informationizes the parameters of each device and each node of a pipe network of the heating system, and visually transmits the parameters to the corresponding device in a signal mode, thereby realizing efficient communication and feedback between the heat source and the heat user of the whole centralized heating area.
Disclosure of Invention
The centralized heating system for the mining area consists of a heat source (a heat pump machine room or a heat exchange station), a heat supply pipe network and each heat user terminal, and heat is conveyed to each heat user terminal from the heat source through the heat supply pipe network. Aiming at the problems in the prior art, the invention provides an intelligent monitoring system for mine district dispersed clean heat source coupling heat supply based on the Internet of things, which realizes the high-efficiency, energy-saving, safe and stable operation of a mine district heat supply system through the information transmission in the monitoring system.
The invention is realized by adopting the following technical scheme:
the intelligent monitoring system comprises a control center module, a network transmission module and a remote equipment module, wherein the control center module transmits signals mutually by means of the network transmission module and the remote equipment module, and the mine dispersed clean heat source comprises return air waste heat, inrush water waste heat and air compressor waste heat; the control center module comprises a data acquisition system, a field control module and a remote control module; the data acquisition system is used for acquiring parameters in the operation process of a heat source, a heat supply network and each heat user and outdoor meteorological parameters; the data acquisition system comprises a wireless pressure sensor, a wireless temperature sensor, a wireless flow sensor, a wireless liquid level sensor, a circulating water pump, an electric equipment frequency converter, an outdoor temperature weather meter and a GPS (global positioning system) for positioning, and is used for transmitting various data acquired in real time to the network transmission module; in the field control, a field MCGS embedded display screen is adopted to collect various real-time data parameters, single data information is visualized into a curve graph so as to be convenient for inspection of inspectors, and when a certain parameter is abnormal and exceeds a range, the field MCGS embedded display screen is red so as to attract the attention of the inspectors; the remote control adopts an alarm module, and when an abnormal condition occurs, the alarm module reminds the remote equipment module of the field parameters in a short message mode;
the network transmission module comprises a communication network, a data center and a cloud server; the communication network is connected with the data center and the cloud server to complete signal transmission between the data center and the cloud server; the communication network is the combination of the mobile GPRS technology and the 4G/5G network technology; the data center station acquires data sensed by the data acquisition system and transmits the data to the cloud server through a communication network; the cloud server stores all received data and transmits the data to the control equipment, and corresponding signals are transmitted by combining historical data and preset parameters so that the data parameters fluctuate within a preset range; the equipment of the network transmission module is arranged in a mine area configuration network monitoring center.
The invention is further improved in that the remote equipment module comprises a computer client and a mobile client, the computer client comprises a desktop and a notebook web browser, and the mobile client comprises a mobile phone and a tablet application program.
The invention is further improved in that the heat consumers include three different types of heat for production-assisted and administrative welfare buildings, heat for bathroom domestic hot water and heat for shaft freeze protection.
The invention has the further improvement that the data acquisition system converts the collected data signals into various sensors of electric signals; the PLC controller receives the electric signal and converts the electric signal into a data signal again; the field MCGS embedded display screen is used for receiving the data signals transmitted by the PLC and monitoring the heat supply running state; and the GPRS DTU wireless communication equipment is connected with the field control equipment and the data platform.
The invention is further improved in that meteorological parameters in the data acquisition system are acquired by an outdoor meteorological acquisition instrument and comprise a temperature sensor, a wind speed sensor, a humidity sensor and a pressure sensor, the acquired meteorological parameters are transmitted to the data platform through a communication network, and the data platform sends the meteorological parameters to the cloud server through the communication network, so that the water supply flow of each user is changed based on the outdoor meteorological parameters, and heat supply on demand is realized.
The invention has the further improvement that the alarm module comprises a singlechip for receiving and outputting the data signal output by the sensor and a GSM module for sending an alarm short message to the target equipment; and when an emergency occurs, the alarm module sends an alarm signal to the field MCGS embedded display screen and the remote mobile terminal through the communication network.
The invention is further improved in that the system adjusts the opening degree of each heat user electric control valve according to preset subareas and time-sharing control rules of each area.
The invention is further improved in that MCGS embedded display screen wall-hung is installed at the places of heat source monitoring rooms, first-floor rooms of production and administrative buildings, bathroom lamp rooms and well-head duty rooms, so that the adjustment of patrolmen is facilitated.
The invention is further improved in that the wireless communication technology adopted by the data signal transmission is a Modbus UDP communication mode.
The invention has at least the following beneficial technical effects:
according to the monitoring and management of the intelligent monitoring system for the mine area dispersed clean heat source coupling heat supply based on the Internet of things, the network transmission module makes a corresponding feedback result by monitoring and comparing data of each sensor acquired in real time, and the remote wireless transmission and the monitoring and management of the mobile terminal are realized by short message alarm in an emergency. The system realizes the comprehensive management of the integration of management, control and operation of the central heating system in the mining area, can realize the reutilization of waste heat resources in the mining area and the heat supply according to the requirement, saves the energy consumption, and provides powerful support for the aspects of energy conservation optimization, equipment maintenance, accident alarm, failure prediction and troubleshooting and the like faced by the heating system in the mining area.
Drawings
FIG. 1 is a schematic diagram of a central heating monitoring network system according to the present invention;
fig. 2 is a general schematic diagram of the intelligent monitoring system for mine dispersed clean heat source coupling centralized heat supply based on the internet of things, wherein a solid line is a water supply and return pipeline line, and a dotted line is a signal line;
FIG. 3 is a block diagram of an automated monitoring system for a distributed clean heat source according to the present invention;
FIG. 4 is a schematic diagram of the preparation principle of bath water in the system of the present invention;
fig. 5 is a schematic diagram of the GSM-based alarm system design of the present invention.
In the figure: the system comprises a terminal monitoring device 1, an electric switch valve 2, an MCGS embedded display screen 3, a bypass valve 4 and a liquid level sensor 5, wherein the MCGS embedded display screen is connected with the terminal monitoring device through a communication network; t1 and P1 are temperature and pressure sensors on the water supply line, and T2 and P2 are temperature and pressure sensors on the water return line.
Detailed Description
The invention is explained in detail below with reference to the figures and the detailed description.
Based on that the adjustment of a heat pump machine room and each heat user in a traditional mining area dispersed clean heat source centralized heating system is mostly managed by manpower, the invention provides an intelligent monitoring system for coupling heat supply of a mining area dispersed clean heat source based on the Internet of things. The internet of things is composed of a sensing layer, a network layer and an application layer, so that in the invention, a centralized heating monitoring network system is also divided into the following three modules: the system comprises a control center module, a network transmission module and a remote equipment module. The specific system structure is shown in figure 1.
The control center module comprises a data acquisition system, a current control and a remote control. The data acquisition system records the flow, temperature, pressure, liquid level, water pump and equipment motor frequency of a monitoring point; the site control is that the worker processes the abnormal data on the MCGS embedded display screen 3; the remote control is that when the remote control is out of the preset parameter range, the alarm module sends the related data to the client and then performs corresponding processing.
The network transmission module comprises a data platform, a communication network and a cloud server. The data platform has two functions of receiving and storing the monitored data; the communication network comprises a GPRS technology and a 4G/5G technology, and data transmission is completed in a DTU wireless terminal device and Modbus UDP communication mode; the cloud server comprises a PLC (programmable logic controller) for monitoring a plurality of heat sources, the heat pump machine room and each heat user, and is used for analyzing and processing the received signals and sending corresponding signals to ensure the normal operation of the heat supply system.
The remote device modules include mobile clients (cell phones and tablets) and computer clients (desktops and notebooks). The remote equipment receives the operation parameters collected by the data platform through the communication network, and the client can check recent data according to the month, the week or the day and is used for receiving the alarm short message and replying the alarm processing when abnormal conditions occur.
As shown in fig. 2, the centralized and decentralized heat supply monitoring system provided by the present invention includes a heat pump machine room, a heat exchange station, a plurality of heat users, and a network transmission module. The heat supply mode of the mine heat source comprises the following steps: and the waste heat of the air compressor, the waste heat of return air of the mine and the waste heat of water burst of the mine are utilized to supply heat to all hot users by utilizing the heat pump. Parameter acquisition and LMPLC controllers of auxiliary equipment (an electric valve, a circulating water pump, a water tank and the like), frequency converters of pressure sensors P1 and P2, temperature sensors T1 and T2, a flow sensor, a liquid level sensor 5, equipment motors of the circulating water pump and the like on a water supply and return pipeline, and the LMPLC controllers are arranged in the heat pump machine room. The heat supply medium of the dispersed clean heat source is conveyed to the heat pump machine room system through the primary pipe network, and the heat pump machine room system transmits the heat transfer medium to a heat user through the secondary pipe network. The mine area heat supply comprises heat for production auxiliary buildings and administrative welfare buildings, bathroom domestic hot water and shaft anti-freezing, each heat user is greatly influenced by the temperature in the morning and at night due to different heat using time and in cold areas, and the pipe network supplies heat in different time and regions according to the requirements of different heat users. The heating heat of the production auxiliary building and the administrative welfare building adopts 16-hour intermittent heat supply; the bathroom is used for regular bathing, heat is intermittently supplied by a heat storage water tank according to the condition of hot water used in each shift, and the heat is supplied all day by 24-hour continuous bathing and shaft anti-freezing. The parameters collected by the outdoor weather instrument and the temperature parameters of the supply water and the return water jointly determine the opening of each user valve and the starting and stopping of the heating system unit equipment, the water supply temperature of the pipe network is adjusted in real time, and the dispersed and cooperative dual control of a heat source, a heat supply network and heat users is achieved, so that accurate heat supply is realized. The cloud server accumulates real-time heat loads fed back by each heat user, and the real-time heat loads are transmitted to the heat pump machine room through the DTU wireless terminal equipment to adjust the opening condition of the valve on the water supply pipeline, so that energy-saving heat supply is realized. In the initial stage of operation, the detection of the heating system and the initial regulation are carried out by means of the bypass valve 4. The section including the bypass valve 4 and the electric opening/closing valve 2 is the terminal monitoring device 1.
Fig. 3 shows the structure of the automatic monitoring system for the scattered clean heat source. The heat source and heat pump system is equipped with pressure sensor, temperature sensor, flow sensor, liquid level sensor, circulating pump and frequency converter of various equipment motors. The sensor converts the acquired pressure signal, temperature signal, flow signal and liquid level signal into electric signals and transmits the electric signals to the LMPLC; and the frequency converter converts the recorded motor rotating speed signal of the circulating pump into an electric signal and transmits the electric signal to the LMPLC. The real-time water supply and return temperature and the flow of the heating system in the operation process are transmitted to the cloud server in a UDP communication mode through a Modbus, and meanwhile the cloud server receives real-time outdoor meteorological parameters transmitted by an outdoor meteorological instrument. The temperature compensation model in the LKCLC controller in the cloud server changes the opening degree of the electric switch valve 2 or adjusts the motor rotation speed of the circulating pump through mathematical processing of outdoor temperature so as to ensure that the water supply temperature and the water supply flow are in a set range, thereby realizing the energy-saving operation of the heating system. An MCGS embedded display screen is arranged at the heat pump machine room and each heat source inlet, so that on-site monitoring is realized. Meanwhile, the cloud server can send the control command to the heat pump unit and the heat source in a Modbus UDP communication mode, and remote control is achieved.
Compared with the urban public bathroom, the mining area has single apartment houses and the public bathroom. The domestic heat of the single apartment needs to be supplied all day long, the three shift working system in the mining area ensures that the water consumption and the water frequency for bathing and living are large, the water consumption time is centralized, the mining area provides domestic hot water by utilizing waste heat resources, the output of the main machine can be flexibly adjusted according to the real-time load, and the system is environment-friendly and energy-saving. FIG. 4 shows a schematic diagram of the preparation principle of bath water, and the specific process is as follows:
the bath water tanks are 3 types in total, namely a heat storage water tank of a single apartment, a timing heat storage water tank of a bathroom and a high-level water tank of the bathroom. Hot water after heat exchange by the heat pump unit is sent to the single-body apartment heat storage water tank and the bathroom timing heat storage water tank by the circulating water pump, when the temperature reaches a target value, the hot water is sent to the single-body apartment shower system and the bathroom high-level water tank by the pressure water pump, the single-body apartment shower system and the bathroom high-level water tank both enter the shower equipment under self pressure, and the bathroom pressure water pump starts water supply at regular time according to the situation of each shift. The three water tanks are all provided with a liquid level sensor and a temperature sensor. Liquid level sensor receives the water level condition in the water tank and gives the PLC controller with water level signal transmission, and when monitoring that the water tank water level is less than the setting value, the PLC controller assigns the order and makes the moisturizing motorised valve open, carries out the moisturizing, mends and closes the moisturizing motorised valve after setting for the liquid level. The temperature sensor measures the temperature in the water tank and transmits a water temperature signal to the PLC, and when the temperature of the water in the water tank is monitored to be lower than a set value, the PLC sends out a circulating heating command until the set value is reached. The bathing water passes through the heat storage water tank, the water pump and the heat pump machine room in sequence and then is sent back to the heat storage water tank. Until the bathing water in the heat storage water tank is heated to the target temperature in a circulating way. In order to meet the use requirements of the hot water supply system at any time, a hot water circulating pump on a water supply and return pipeline of the heat supply pipeline network is normally opened to operate.
The short message alarm system can find and process emergency in time by monitoring the operation data so as to reduce energy consumption. As shown in fig. 5, the overall design block diagram of the alarm system of the present invention includes the following specific alarm processes:
data signals (temperature signals, pressure signals and flow signals) acquired by a sensor in the data acquisition system are transmitted to a single chip microcomputer controller of a cloud server in a Modbus UDP communication mode and are displayed on an MCGS embedded display screen; when the collected data exceeds or is lower than the upper limit or the lower limit of the preset parameters, the MCGS embedded display screen is red so as to be convenient for inspection personnel to check; meanwhile, the GSM wireless communication module is connected with the single chip microcomputer controller through a serial port and sends the alarm short message to a target mobile terminal; when the target mobile terminal or the MCGS embedded display screen does not process the alarm signal, the alarm short message is sent again until an alarm reply is generated; in addition, when the DTU of the signal end fails, an alarm short message is also sent.
Claims (9)
1. The intelligent monitoring system for the coupling heat supply of the dispersed clean heat source of the mining area based on the Internet of things is characterized by comprising a control center module, a network transmission module and a remote equipment module, wherein the control center module transmits signals mutually by means of the network transmission module and the remote equipment module, and the dispersed clean heat source of the mining area comprises return air waste heat, water burst waste heat and air compressor waste heat; wherein the content of the first and second substances,
the control center module comprises a data acquisition system, a field control module and a remote control module; the data acquisition system is used for acquiring parameters in the operation process of a heat source, a heat supply network and each heat user and outdoor meteorological parameters; the data acquisition system comprises a wireless pressure sensor, a wireless temperature sensor, a wireless flow sensor, a wireless liquid level sensor, a circulating water pump, an electric equipment frequency converter, an outdoor temperature weather meter and a GPS (global positioning system) for positioning, and is used for transmitting various data acquired in real time to the network transmission module; in the field control, a field MCGS embedded display screen is adopted to collect various real-time data parameters, single data information is visualized into a curve graph so as to be convenient for inspection of inspectors, and when a certain parameter is abnormal and exceeds a range, the field MCGS embedded display screen is red so as to attract the attention of the inspectors; the remote control adopts an alarm module, and when an abnormal condition occurs, the alarm module reminds the remote equipment module of the field parameters in a short message mode;
the network transmission module comprises a communication network, a data center and a cloud server; the communication network is connected with the data center and the cloud server to complete signal transmission between the data center and the cloud server; the communication network is the combination of the mobile GPRS technology and the 4G/5G network technology; the data center station acquires data sensed by the data acquisition system and transmits the data to the cloud server through a communication network; the cloud server stores all received data and transmits the data to the control equipment, and corresponding signals are transmitted by combining historical data and preset parameters so that the data parameters fluctuate within a preset range; the equipment of the network transmission module is arranged in a mine area configuration network monitoring center.
2. The intelligent monitoring system for mine dispersed clean heat source coupling heat supply based on the internet of things as claimed in claim 1, wherein the remote equipment module comprises a computer client and a mobile client, the computer client comprises a desktop and a notebook web browser, and the mobile client comprises a mobile phone and a tablet application program.
3. The intelligent monitoring system for mine site decentralized and clean heat source coupled heating based on internet of things as claimed in claim 1, wherein the heat users include three different types of heat for production-assisted buildings and administrative welfare buildings, heat for bathroom domestic hot water and heat for shaft anti-freezing.
4. The intelligent monitoring system for the mine area dispersed clean heat source coupling heat supply based on the internet of things as claimed in claim 1, wherein the data acquisition system is various sensors for converting collected data signals into electric signals; the PLC controller receives the electric signal and converts the electric signal into a data signal again; the field MCGS embedded display screen is used for receiving the data signals transmitted by the PLC and monitoring the heat supply running state; and the GPRSDTU wireless communication equipment is connected with the field control equipment and the data platform.
5. The intelligent monitoring system for mine dispersed clean heat source coupling heat supply based on the internet of things as claimed in claim 4, wherein meteorological parameters in the data acquisition system are acquired by an outdoor meteorological acquisition instrument, the system comprises a temperature sensor, an air speed sensor, a humidity sensor and a pressure sensor, the acquired meteorological parameters are transmitted to the data platform through a communication network, and the data platform sends the meteorological parameters to a cloud server through the communication network, so that the water supply flow of each user is changed based on the outdoor meteorological parameters, and heat supply on demand is realized.
6. The intelligent monitoring system for the coupling of the dispersed and clean heat source to the heat supply of the mine area based on the internet of things as claimed in claim 1, wherein the alarm module comprises a single chip microcomputer for receiving and outputting data signals output by the sensor and a GSM module for sending alarm short messages to target equipment; and when an emergency occurs, the alarm module sends an alarm signal to the field MCGS embedded display screen and the remote mobile terminal through the communication network.
7. The intelligent monitoring system for mine distributed clean heat source coupled heating based on internet of things as claimed in claim 1, wherein the system adjusts the opening degree of each electric control valve of each heat consumer according to the preset time-sharing control rule of each subarea and each area.
8. The intelligent monitoring system for the internet of things-based mine site decentralized and clean heat source coupled heating system according to claim 1, wherein MCGS embedded display screens are mounted on wall at heat source monitoring rooms, first floor rooms of production and administrative buildings, bathroom lamp rooms and well head duty rooms for adjustment by patrolmen.
9. The intelligent monitoring system for the coupling of the dispersed and clean heat source to the heat supply in the mine area based on the internet of things as claimed in claim 1, wherein the wireless communication technology adopted by the data signal transmission is a Modbus UDP communication mode.
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| CN112995328A (en) * | 2021-03-22 | 2021-06-18 | 华南理工大学 | Solar panel cleaning device and unmanned aerial vehicle internet of things layout system sprinkles |
| CN113420825A (en) * | 2021-07-07 | 2021-09-21 | 国能龙源蓝天节能技术有限公司 | Abnormal data detection method based on support vector machine and electronic equipment |
| CN113883577A (en) * | 2021-09-16 | 2022-01-04 | 华能兰州新区热电有限公司 | Intelligent supply system for central heating temporary hot water |
| CN114001404A (en) * | 2021-10-30 | 2022-02-01 | 长春吉电热力有限公司 | Intelligent heat supply control system and application |
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