CN213207925U - Single-cylinder biomass gas burner automatic control system - Google Patents
Single-cylinder biomass gas burner automatic control system Download PDFInfo
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- CN213207925U CN213207925U CN202021377164.3U CN202021377164U CN213207925U CN 213207925 U CN213207925 U CN 213207925U CN 202021377164 U CN202021377164 U CN 202021377164U CN 213207925 U CN213207925 U CN 213207925U
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- 239000002028 Biomass Substances 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 44
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000004200 deflagration Methods 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 210000004556 brain Anatomy 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000010248 power generation Methods 0.000 abstract description 3
- 238000005496 tempering Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 34
- 238000010438 heat treatment Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
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- Feeding And Controlling Fuel (AREA)
Abstract
The utility model provides a single cylinder biomass burner automated control system belongs to stirling power generation technical field. The method provides an automatic control system of the biomass burner, and the functions realized by the control system comprise automatic ignition control, temperature setting display, temperature closed-loop control, tempering and explosion suppression prevention functions, and functions of ignition, combustion, temperature fault signal detection, linkage alarm and the like. The control system has the characteristics of safety, reliability, economy and high automation degree.
Description
Technical Field
The utility model belongs to the technical field of the stirling power generation technique and specifically relates to a single cylinder biomass gas combustor automated control system.
Background
The biomass gas is a mixed gas composed of carbon monoxide gas, methane gas and hydrogen gas, and is mainly generated by heating and burning a biomass gasification furnace, wherein the heat value of the gas is 1300 kilocalories, the gas temperature is 200 ℃, and the conveying pressure is 2-5 kilopascals. The biomass gas can be combusted, the heat generated by combustion can be used for power generation, boiler heating and the like, and the device for combusting the biomass gas is called a combustor; at present biomass burner's control mode is mostly manual control, needs artifical intervention to ignite once more when the ignition trouble, and temperature control is open loop control, does not have fault detection and warning, has the danger of tempering detonation.
SUMMERY OF THE UTILITY MODEL
The technical task of the utility model is to solve the not enough of prior art, provide a single cylinder biomass gas combustor automated control system.
The utility model provides a technical scheme that its technical problem adopted is:
the core idea of the design is that in order to solve the problems of combustor control in the background technology, the method provides an automatic control system of the biomass combustor, and the functions realized by the control system comprise automatic ignition control, temperature setting display and temperature closed-loop control, tempering and explosion suppression prevention functions, and ignition, combustion and temperature fault signal detection and interlocking alarm functions. The control system has the characteristics of safety, reliability, economy and high automation degree.
The utility model provides a single cylinder biomass burner automated control system, this control system constitutes and includes: HMI display, a PLC controller, an input module, a temperature module, an output module, flame detection, gas detection, position detection, temperature detection, alarm output, an electric actuator, an explosion-proof cut-off valve, an igniter and an air fan;
the HMI display refers to a human-computer interface, generally a touch screen or an industrial personal computer, and communicates with the PLC controller in an Ethernet communication mode;
the PLC controller is a CPU of the PLC, is a brain of the whole control system, communicates with the HMI on one hand, transfers the working state and related parameter setting of equipment, and processes input signals collected by the input module and the temperature module to carry out logical operation and then controls the output module to output control signals;
the input module is a component of the PLC equipment and is mainly used for detecting various signals of the combustor and transmitting the signals to the PLC controller for detection;
the temperature module is a component of the PLC equipment and is mainly used for detecting a temperature signal of the combustor and transmitting the temperature signal to the PLC;
the flame detection is a flame detection switch which is connected with the input module and is mainly used for detecting the flame of the burner and transmitting a signal to the input module, wherein the signal is generated after the ignition is successful and the signal is not generated after the ignition is successful;
the gas detection is a gas component detection switch which is connected with the input module and is mainly used for detecting the components of the air around the burner and transmitting signals to the input module, and when gas leaks around the burner, signals are generated;
the position detection means that each position switch is connected with the input module and is mainly used for detecting position information of a motor protection switch, a contactor, a knob and the like and transmitting signals to the input module;
the temperature detection means a thermocouple of the combustor, is connected with the temperature module, is mainly used for measuring the temperature of the combustor and transmitting a signal to the temperature module;
the alarm output is an indicator lamp and a buzzer, is connected with the output module, is mainly used for executing an output command of the output module and is used for displaying and prompting fault alarm information of the burner;
the electric actuator is an electric proportional valve on a gas pipeline, is connected with the output module, executes an output command of the output module, can adjust the opening of the valve according to the output command, and is used for adjusting the gas output quantity so as to adjust the temperature of the combustor;
the explosion-proof cut-off valve is an electromagnetic valve with an explosion-proof function, is connected with the output module, executes the output instruction of the output module, is arranged on the main gas pipeline, and cuts off the gas output and prevents backfire when the burner gives an alarm when in fault and is in a non-working state;
the igniter is an ignition device of the combustor, is connected with the output module, executes an output instruction of the output module and is used for ignition of the combustor;
the air blower is a blower and is connected with the output module to execute the output instruction of the output module, and the air blower is used for providing air for the combustion of the combustor and purging residual gas in the combustor to prevent deflagration when ignition is unsuccessful or combustion fails.
Functions contained in the HMI comprise switch information of each position, fault alarm information, a real-time temperature curve, a historical curve, valve opening and the like; the HMI has another function of parameter setting for temperature, valve opening, alarm reset, and the like.
The information transmitted by the input module comprises a flame signal, a gas composition signal, a position switch signal and the like.
The utility model discloses an automatic control system of single cylinder biomass burner, prior art compares produced beneficial effect and is:
(1) the control system designed by the invention adopts closed-loop control, information obtained by detecting the flame signal, the gas composition signal and the position switch signal is transmitted to the control module, and the control module controls the execution part to adjust in real time, thereby ensuring that the combustor can operate stably and reliably.
(2) The automatic control system designed by the invention has the advantages that the operator can carry out detection and operation in a long distance, and the working environment of the operator is improved.
Drawings
FIG. 1 is a structural diagram of the control system of the present invention;
fig. 2 is a control flow chart of the control system of the present invention.
Detailed Description
Embodiments of the present invention will be described with reference to the accompanying drawings.
The utility model provides a single cylinder biomass burner automated control system, this control system constitutes and includes: HMI display, a PLC controller, an input module, a temperature module, an output module, flame detection, gas detection, position detection, temperature detection, alarm output, an electric actuator, an explosion-proof cut-off valve, an igniter and an air fan;
the HMI display refers to a human-computer interface, generally a touch screen or an industrial personal computer, and communicates with the PLC controller in an Ethernet communication mode;
the PLC controller is a CPU of the PLC and is a brain of the whole control system. On one hand, the intelligent control system is communicated with the HMI to transmit the working state and related parameter setting of equipment, and on the other hand, the intelligent control system processes input signals collected by the input module and the temperature module and controls the output module to output control signals after logical operation;
the input module is a component of the PLC equipment and is mainly used for detecting various signals of the combustor and transmitting the signals to the PLC controller for detection;
the temperature module is a component of the PLC equipment and is mainly used for detecting a temperature signal of the combustor and transmitting the temperature signal to the PLC;
the flame detection is a flame detection switch which is connected with the input module and is mainly used for detecting the flame of the burner and transmitting a signal to the input module, wherein the signal is generated after the ignition is successful and the signal is not generated after the ignition is successful;
the gas detection is a gas component detection switch which is connected with the input module and is mainly used for detecting the components of the air around the burner and transmitting signals to the input module, and when gas leaks around the burner, signals are generated;
the position detection means that each position switch is connected with the input module and is mainly used for detecting position information of a motor protection switch, a contactor, a knob and the like and transmitting signals to the input module;
the temperature detection means a thermocouple of the combustor, is connected with the temperature module, is mainly used for measuring the temperature of the combustor and transmitting a signal to the temperature module;
the alarm output is an indicator lamp and a buzzer, is connected with the output module, is mainly used for executing an output command of the output module and is used for displaying and prompting fault alarm information of the burner;
the electric actuator is an electric proportional valve on a gas pipeline, is connected with the output module, executes an output command of the output module, can adjust the opening of the valve according to the output command, and is used for adjusting the gas output quantity so as to adjust the temperature of the combustor;
the explosion-proof cut-off valve is an electromagnetic valve with an explosion-proof function, is connected with the output module, executes the output instruction of the output module, is arranged on the main gas pipeline, and cuts off the gas output and prevents backfire when the burner gives an alarm when in fault and is in a non-working state;
the igniter is an ignition device of the combustor, is connected with the output module, executes an output instruction of the output module and is used for ignition of the combustor;
the automatic ignition control is realized by an igniter, flame detection and an air fan, the igniter performs 5S ignition at each time, whether the flame detection is successful or not is detected, and when the ignition is unsuccessful, the air fan performs 10S purging actions to purge the un-ignited gas in the combustor completely, so that the next time of ignition is prevented from causing deflagration.
And after the ignition is successful, temperature closed-loop control is performed, the temperature closed-loop control is mainly completed by an electric actuator and a thermocouple of a temperature detection device, and the PLC performs logic control on the temperature setting parameters transmitted by the HMI and the combustion temperature detected by the thermocouple. And when the detected temperature is lower than the set temperature, the output control actuator increases the valve opening, and when the detected temperature is higher than the set temperature, the output control actuator decreases the valve opening, and the circulation is repeated, so that the combustion temperature is gradually controlled to the set temperature.
The PLC judges the working state of the burner and whether the ignition is successful or not in the ignition process, thereby giving an action instruction of the explosion-proof cut-off valve, enabling the burner to be in a safe state all the time, and avoiding the leakage and the deflagration of gas.
The air blower is a blower and is connected with the output module to execute the output instruction of the output module, and the air blower is used for providing air for the combustion of the combustor and purging residual gas in the combustor to prevent deflagration when ignition is unsuccessful or combustion fails.
The system is initialized firstly after the system is started, and the system scans the input signals and initializes the PLC control program in the initialization process. The device status is then passed to the HMI display and the set parameters on the HMI are read for logic control to be performed later. And after the system initialization is finished, system fault detection is carried out, the state of the equipment is judged, whether alarm exists or not and whether the starting condition is met or not is judged, and information is transmitted to a display device to be displayed and recorded. If the fault detection detects that there is a problem, the system will cut off the explosion-proof cut-off valve and output alarm information. If the system normally enters an ignition stage, the system sends an ignition instruction, the igniter acts for 5S, and then flame detection is carried out. And if the flame is detected to have a signal, the ignition is normal, if no signal exists, the air fan performs sweeping action, the explosion-proof cut-off valve is cut off, the ignition process is performed again after the air fan sweeps for 10 seconds, and the steps are repeated until the ignition is finished. And entering a temperature control process after the ignition is finished, and judging whether the opening degree of the valve of the electric actuator is increased or decreased by combining the temperature setting parameter and the temperature detection result after the temperature control stage. The opening of the valve is controlled, meanwhile, the temperature is detected in real time, and the control strategy is adjusted according to the feedback of the temperature.
Functions contained in the HMI comprise switch information of each position, fault alarm information, a real-time temperature curve, a historical curve, valve opening and the like; the HMI has another function of parameter setting for temperature, valve opening, alarm reset, and the like.
The display and setting functions are mainly realized by an HMI display device, the HMI is communicated with the PLC through the Ethernet together, and the states of the display equipment, including the information of each position switch, alarm information, a temperature curve, a historical curve and a data record, are read; and meanwhile, the received parameter setting information from the operator is transmitted to the PLC for the PLC to control.
The information transmitted by the input module comprises a flame signal, a gas composition signal, a position switch signal and the like.
It should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and although the detailed description of the present invention is given to the detailed description of the present invention, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. The utility model provides a single cylinder biomass gas combustor automated control system which characterized in that, this control system constitution includes: HMI display, a PLC controller, an input module, a temperature module, an output module, flame detection, gas detection, position detection, temperature detection, alarm output, an electric actuator, an explosion-proof cut-off valve, an igniter and an air fan;
the HMI display refers to a human-computer interface, generally a touch screen or an industrial personal computer, and communicates with the PLC controller in an Ethernet communication mode;
the PLC controller is a CPU of the PLC, is a brain of the whole control system, communicates with the HMI on one hand, transfers the working state and related parameter setting of equipment, and processes input signals collected by the input module and the temperature module to carry out logical operation and then controls the output module to output control signals on the other hand;
the input module is a component of the PLC equipment and is mainly used for detecting various signals of the combustor and transmitting the signals to the PLC controller for detection;
the temperature module is a component of the PLC equipment and is mainly used for detecting a temperature signal of the combustor and transmitting the temperature signal to the PLC;
the flame detection means a flame detection switch which is connected with the input module and is mainly used for detecting the flame of the burner and transmitting a signal to the input module;
the gas detection is a gas component detection switch which is connected with the input module and is mainly used for detecting the components of the air around the burner and transmitting signals to the input module, and signals exist when gas leaks around the burner;
the position detection refers to each position switch, is connected with the input module, is mainly used for detecting position information of a motor protection switch, a contactor, a knob and the like and transmitting signals to the input module;
the temperature detection means a thermocouple of the combustor, is connected with the temperature module, and is mainly used for measuring the temperature of the combustor and transmitting a signal to the temperature module;
the alarm output is an indicator lamp and a buzzer, is connected with the output module, is mainly used for executing an output command of the output module and is used for displaying and prompting fault alarm information of the burner;
the electric actuator is an electric proportional valve on a gas pipeline, is connected with the output module, executes an output command of the output module, can adjust the opening of the valve according to the output command, and is used for adjusting the gas output quantity so as to adjust the temperature of the combustor;
the explosion-proof cut-off valve is an electromagnetic valve with an explosion-proof function, is connected with the output module, executes the output instruction of the output module, is arranged on the main gas pipeline, and cuts off the gas output and prevents backfire when the burner gives an alarm when in fault and is in an idle state;
the igniter is an ignition device of the combustor, is connected with the output module, executes an output instruction of the output module and is used for ignition of the combustor;
the air fan is a blower and is connected with the output module to execute the output instruction of the output module, and the air fan is used for providing air for the combustion of the combustor and purging residual gas in the combustor to prevent deflagration when ignition is unsuccessful or combustion fails.
2. The automated control system for the single cylinder biomass gas burner of claim 1, wherein the functions contained in the HMI include position switch information, fault alarm information, real-time temperature curves, historical curves, valve opening, etc.; the HMI is used for setting parameters, temperature, valve opening and alarm reset.
3. The automated control system for the single cylinder biomass gas burner of claim 2, wherein the information transmitted by the input module comprises a flame signal, a gas composition signal, a position switch signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021377164.3U CN213207925U (en) | 2020-07-14 | 2020-07-14 | Single-cylinder biomass gas burner automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021377164.3U CN213207925U (en) | 2020-07-14 | 2020-07-14 | Single-cylinder biomass gas burner automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213207925U true CN213207925U (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021377164.3U Expired - Fee Related CN213207925U (en) | 2020-07-14 | 2020-07-14 | Single-cylinder biomass gas burner automatic control system |
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| Country | Link |
|---|---|
| CN (1) | CN213207925U (en) |
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2020
- 2020-07-14 CN CN202021377164.3U patent/CN213207925U/en not_active Expired - Fee Related
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Granted publication date: 20210514 |