Info-measuring and control system for heat production optimisation at heat supply structures

FIELD: machine building.

SUBSTANCE: first output of the first circuit with heat source, a gas boiler, is connected with discharge gas temperature gage input and, via heat exchanger, with heat network second circuit. Second circuit three outputs are connected with return pipeline pressure age, forward pipeline pressure gage, their outputs being connected with inputs of multichannel microprocessor unit for control over power saving control in heat power production. Gas feed controller output is connected via gas flow rate metre with boiler first inlet. Blower outlet is connected via air temperature gage and air flow rate gage with boiler second outlet. First output of said microprocessor unit is connected with memory unit with its second output connected to dispatcher data acquisition centre input. Output of the centre is connected via boiler combustion control unit with gas feed and blower controller inputs.

EFFECT: optimised heat production and higher efficiency.

1 dwg

 

The invention relates to heating systems in towns and other settlements and can be used for automatic metering of heat in heat supply systems.

Known automated system for measuring and recording flow, and heat in heat supply systems (U.S. Pat. Of the Russian Federation No. 2144162, IPC7F24D 19/10. Automated system for measuring and recording flow, and heat in heat supply systems, Appl. 16.07.96; publ. 10.01.2000. Bull. No. 1).

Automated system for measuring and recording flow, and heat in the heating system contains one heat source, the heat pipes network with temperature sensors, pressure sensors, static converters in power or current sensors and voltage data transfer system, the information centre.

The disadvantage of this system is that not considered two-circuit heating systems using frequency converters for simultaneous regulation of the coolant supply to the circuits of the heating system.

The closest to the invention is an adaptive control system actuators supply unit housing (U.S. Pat. Of the Russian Federation No. 2425292, IPC8F24D 19/10. Adaptive control system actuators objects th the supply of housing, Appl. 26.01.2010; publ. 27.07.2011).

Adaptive control system actuators supply unit housing containing the first circuit with the heat source and the control unit, the network pump outlet to the heat exchanger, the second circuit a heating system with a circulating pump and a motor controlled by a frequency Converter, pumps and motors controlled by frequency converters in each of the N consumers of thermal energy, temperature sensors and pressure supply and return pipelines of the first and second circuits of the heat network and each of the N consumers of thermal energy added to each of the N geographically dispersed consumers of thermal energy of the first and second blocks comparison of differential pressure the unit allowable pressure drop, the block comparison of the temperature changes, the unit allowable temperature, the setpoint temperature in the return pipeline, a unit for comparing the temperature in the return pipeline, unit allowable pressure in the feed line, the block comparison permissible pressure limiter pressure, the first, second and third scaling amplifiers consumers of thermal energy, the adder-corrector control signals, the unit of consumed heat energy, inverter, preempted tcic consumer of thermal energy, in the control source of thermal energy added N-channel transceiver, where N is the number of geographically distributed consumers of thermal energy, N adjustment knobs consumers of thermal energy, N detectors exceeding the allowable pressure drop in each of the N consumers of thermal energy, the adder of the flow of heat energy consumers, unit of flow of the heat consumer unit comparing the flow of heat energy consumers, the adder temperatures in the supply and return pipelines of the heat consumer, first, second and third divisors of N, the block comparison of temperatures in the supply and return pipelines, block comparison permissible temperature in the reverse pipeline unit allowable temperature in the return pipe, the accumulator pressure in the supply piping of the heat consumer unit comparing the pressure in the supply piping, the unit pressure drop of the second circuit block comparison of the pressure of the second circuit, the first setpoint temperature of the supply network, the second temperature setter in a feed line of the first circuit, the first and second blocks comparing the temperature in the feed line of the first circuit, the first, second itrate scaling amplifiers of the second circuit, the adder control signals of the second circuit block comparison of the frequency Converter of the second circuit unit of the frequency Converter of the second path.

The disadvantage of the prototype is the lack of monitoring of the technological process of production of thermal energy.

Object of the invention is to expand the technological capabilities of the device by controlling a number of distributed objects heat (10-20 boiler) with the aim of increasing their effectiveness in accordance with the concept of "best available technologies".

The essence of the proposed system is as follows:

1. Need to know the energy consumption of the building heating system in the production of thermal energy, so the monitoring of the building heating system.

2. It is important to improve the energy efficiency of the building heating system in the production of thermal energy, it is necessary to control the production of thermal energy.

This object is achieved in that in the proposed device containing the first circuit with a source of heat (gas boiler), a heat exchanger, the second circuit a heating system, a temperature sensor in direct pipeline for the first circuit, the temperature sensor in return pipe of the second circuit, the pressure sensor in the direct pipeline to the second circuit node control is possible by the combustion process in the boiler, the regulator of the gas sensor, a gas flow rate, fan, temperature sensor, air flow sensor, air temperature sensor of waste gases, the counter of the produced thermal energy, multi-channel microprocessor-based control unit for energy saving in the production of thermal energy, a memory unit, the dispatch center receives information, and the first circuit with a source of heat (gas boiler), the first output of which is connected with the sensor input of the temperature of the waste gases through a heat exchanger associated with the second thermal circuit network connected to the input of the temperature sensor in the direct primary circuit piping, three outputs of the second circuit are connected to the inputs of the temperature sensor in return pipe, a pressure sensor in direct pipeline, metering of heat energy, the outputs of which are connected with the inputs of the multi-channel microprocessor-based control unit for energy saving in the production of thermal energy, the controller output gas flow through the flow sensor gas is connected to the first input of the boiler, the output of the fan through an air temperature sensor, flow sensor air associated with the second input of the boiler, the outputs of the sensor, gas flow sensor, air flow, air temperature sensor, temperature sensor waste gases are connected to the inputs multichannel microprocessor Blo is and control for energy saving in the production of thermal energy, the first output of which is connected to the input of the memory block, a second output connected to the input of the control center receiving the information, the output control centre reception of information by the control unit of the combustion process in the boiler is connected to the inputs of the controller of the gas supply and fan Assembly.

Information-measuring and control system for optimizing the production of thermal energy for distributed supply unit includes a first circuit with a source of heat (gas boiler) 1, the first output of which is connected with the sensor input of the temperature of waste gases 2 and through the heat exchanger 3 is connected with the second circuit thermal network, the first circuit with the heat source 1 is connected to the input of the temperature sensor 4 in the direct primary circuit piping, three outputs of the second circuit are connected to the inputs of the temperature sensor in return pipe 5, the pressure sensor in the direct pipeline 6, the count of thermal energy 7, the outputs of which are connected with the inputs of the multi-microprocessor unit control for energy saving in the production of thermal energy 8, the output of regulator gas supply 9 via the gas flow 10 is connected to the first input of the boiler 1, the output of the fan 11 through an air temperature sensor 12, sensor air flow 13 is connected with the second input of the boiler 1, the outputs of the sensor gas flow 4, the flow sensor in which Suha 13, the air temperature sensor 12, a temperature sensor of waste gases 2 are connected with the inputs of the multi-channel microprocessor-based control unit for energy saving in the production of thermal energy 8, the first output of which is connected to the input of the memory block 14, and a second output connected to the input of the control center receiving information 15, the output of the control center receiving information 15 by the control unit of the combustion process in the boiler 16 is connected to the inputs of the controller of the gas supply 9 and the fan 11.

This solution extends the functionality of the device by transmitting information on the technological parameters of production of thermal energy on distributed supply unit using a cellular connection.

1 shows a diagram of information-measuring and control systems to optimize the production of thermal energy on distributed objects heat.

Information-measuring and control system for optimizing the production of thermal energy on distributed objects heating works as follows. The heat source (gas boiler) 1 generates thermal energy through heat exchanger 3 is transmitted to the second circuit of a heating system and then transmitted to the heating system.

The first circuit with a source of heat (gas boiler) seediness temperature sensor in direct primary circuit piping 4.

A second thermal circuit network connected to the temperature sensor on the return line of the secondary circuit 5, a pressure sensor in direct pipeline of the second circuit 6, the counter of the produced thermal energy 7.

Natural gas is fed into the gas supply regulator 9 and then flows into the heat source - gas boiler 1 through the flow sensor strip 10. Also in the gas boiler 1 discharge air from the fan 11, which passes through an air temperature sensor 12 and the sensor air flow 13.

On each distribution object heat set the multi-channel microprocessor-based control unit for energy saving in the production of thermal energy 8 includes built-in coupling with the object, the microprocessor of the data processing and GSM module for data transfer via GSM communication. Multi-channel microprocessor unit includes a rechargeable battery to ensure uninterrupted operation in the event of loss of mains voltage. The proposed multi-channel microprocessor unit produces individual measurement of technological parameters of each object heat from some accepted the proposed system by removing them from the temperature sensor of waste gases 2, a temperature sensor in direct pipeline of the first circuit 4, a temperature sensor in reverse is m the pipeline, the second circuit 5, the pressure sensor in the direct pipeline of the second circuit 6, the counter of the produced thermal energy 7, the flow sensor strip 10, the air temperature sensor 12, sensor air flow 13 through separate channels in real time and transmits the collected data to the control station receiving information 8 channel GSM for processing.

Processing is as follows. From the obtained data is formed generalized integral indicator for the detection of low efficiency of the process of production of thermal energy (bottlenecks). This indicator shows the effectiveness of the equipment that produces heat, boilers, boiler, etc. Generalized integral indicator of efficiency compared with the technological costs envisaged by the concept of "best available technology" thermal energy production (based on best available technology based on the latest achievements of science and technology, which is aimed at reducing the negative impact on nature). The results of this comparison on appropriate methodologies take necessary decision for control of technological process of production of thermal energy for each heat. Management decision using the node management process of combustion in the boiler 16 lane is given to the gas supply regulator 9 and the fan 11, setting optimal parameters of the unit cost of production of thermal energy

When working in standard mode information from multi-channel microprocessor-based control unit saving 8 daily pass to the control center receiving information 15. In addition, we offer multi-channel microprocessor control unit of energy has provided the opportunity to log taken from the corresponding flow data in the memory unit 14 and reproduce them on a personal computer for maintaining databases and a more comprehensive assessment of resource and energy consumption.

During emergency situations to produce the audio signal, and information centrally supplied to the control station receiving information 15 for operational decision-making on the elimination of this situation.

As a result of this regulation govern the number of distributed objects heat (10-20 boiler), as well as automated remote monitoring of technological parameters of production of thermal energy, which allows to optimize the process of production of thermal energy on distributed objects heat and increase the efficiency of the presented objects, i.e. to extend the functionality of the proposed device.

Information-measuring and control system for optimizing the production of thermal energy for distributed supply unit containing a first circuit with a source of heat (gas boiler), a heat exchanger, the second circuit a heating system, a temperature sensor in direct pipeline for the first circuit, the temperature sensor in return pipe of the second circuit, the pressure sensor in the direct pipeline to the second circuit, the control node of the combustion process in the boiler, characterized in that it additionally introduced supply regulator gas sensor, a gas flow rate, fan, temperature sensor, air flow sensor, air temperature sensor of waste gases, the counter of the produced thermal energy, multi-channel microprocessor-based control unit for energy saving in the production of thermal energy, a memory unit, the dispatch center receives information, and the first circuit with a source of heat (gas boiler), the first output of which is connected with the sensor input of the temperature of the waste gases through a heat exchanger associated with the second thermal circuit network connected to the input of the temperature sensor in the direct primary circuit piping, three outputs of the second circuit are connected to the inputs of the temperature sensor in return pipe, a pressure sensor in direct pipeline, metering of heat energy, the outputs of the cat is, which are connected with the inputs of the multi-channel microprocessor-based control unit for energy saving in the production of thermal energy, the controller output gas flow through the flow sensor gas is connected to the first input of the boiler, the output of the fan through an air temperature sensor, flow sensor air associated with the second input of the boiler, the outputs of the sensor, gas flow sensor, air flow, air temperature sensor, temperature sensor waste gases are connected to the inputs of multi-channel microprocessor-based control unit for energy saving in the production of thermal energy, the first output of which is connected to the input of the memory block, a second output connected to the input of the control center receiving the information, the output control centre reception of information by the control unit of the combustion process in the boiler is connected to the inputs of the controller of the gas supply and fan.



 

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