CN204423051U - Boiler intelligent controller - Google Patents
Boiler intelligent controller Download PDFInfo
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- CN204423051U CN204423051U CN201520107546.7U CN201520107546U CN204423051U CN 204423051 U CN204423051 U CN 204423051U CN 201520107546 U CN201520107546 U CN 201520107546U CN 204423051 U CN204423051 U CN 204423051U
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Abstract
The utility model discloses a kind of boiler intelligent controller, comprise, central processing module, switching signal load module, for inputting the switching signal in boiler combustion system to central processing module; Analog input mModule, for inputting the simulating signal in boiler combustion system to central processing module; Pid control module, receives processing signals from central processing module and by the corresponding control signal of PID regulation output; Relay output module, for being transported to this control signal in boiler combustion system to realize controlling each relay or solenoid valve; Touch display module, to realize to central processing module input operation signal and to show above-mentioned switching signal and simulating signal in real time; Data memory module, for storing above-mentioned switching signal and simulating signal; And power module.The utility model, by being optimized improvement to its inside on the basis of existing technology, makes it have more accurate control ability.
Description
Technical field
The utility model belongs to boiler combustion control technology field, relates to a kind of boiler intelligent controller.
Background technology
Boiler is a kind of energy conversion, and the energy to boiler input has the forms such as the heat energy of chemical energy in fuel, electric energy, high-temperature flue gas, and through boiler conversion, outwards exports steam, high-temperature water or the organic heat carrier with certain heat energy.Boiler combustion system generally comprises supply air system, firing system, monitoring system, fuel system and electric-control system.
Wherein, the function of supply air system is the air sending into certain wind speed and air quantity in firing chamber, and its critical piece has: housing, blower motor, draught fan impeller, air pressure gun fire tube, air damper controller, air door plate washer, cam wheel adjustment mechanism, diffusion disc.
The function of firing system is the potpourri lighting air and fuel, and its critical piece has: ignition transformer, spark electrode, electric fiery high-tension cable.Safer a kind of firing system is called electronic impulse ignition apparatus, by Zhuo Yi energy-conservation wait gas fired-boiler producer widely use.It is convenient and time-saving, and only need press...withing one's finger, it is just passable to move, and security is high, there will not be the security incident because accident extinguishing occurs, once there is flame-out state, control system energy shut electromagnetic valve in time, turns off fuel gas path.
The function of monitoring system is to ensure burner safety, stable operation, and its critical piece has flame monitor, pressure monitor, temperature monitoring, water level monitor etc.
The function of fuel system is to ensure the fuel needed for burner combustion.The fuel system of oil burner mainly contains: oil pipe and joint, oil pump, solenoid valve, nozzle, heavy oil preheater.Gas burner mainly contain filtrator, pressure regulator, solenoid valve group, igniter solenoid valve group so, fuel butterfly valve.
Electric-control system is command centre and the liaison centre of above each system, and its core control element is a controller.
Thus, the boiler combustion system Automated condtrol based on electric-control system can ensure safe operation of the boiler.And the controller control mode adopted on the market is at present more single, function is perfect not, and the service ability that thus result in whole boiler combustion system is limited.Therefore, in order to improve the control ability of controller, and then improving the overall performance of boiler combustion system, being necessary to provide a kind of controller having more advantage.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of boiler intelligent controller, is optimized improvement on the basis of existing technology, makes it have more accurate control ability to its inside.
For achieving the above object, the utility model provides following technical scheme:
A kind of boiler intelligent controller, comprises, central processing module, has a cpu chip; Switching signal load module (16 tunnel), for inputting the switching signal in boiler combustion system to central processing module; Analog input mModule, for inputting the simulating signal in boiler combustion system to central processing module; Pid control module, receives processing signals from central processing module and by the corresponding control signal of PID regulation output; Relay output module, for being transported to this control signal in boiler combustion system to realize controlling each relay or solenoid valve; Touch display module, has a touch-screen, is coupled to this central processing module, to realize to central processing module input operation signal and to show above-mentioned switching signal and simulating signal in real time; Data memory module, has a storage chip, is coupled to central processing module, for storing above-mentioned switching signal and simulating signal, in order to real-time calling; And power module, as the working power of above-mentioned modules.
Further, also comprise a communication interface module, be coupled to this central processing module, data transmission can be carried out with central processing module to realize external unit.
Further, described cpu chip is Cortex-M0 processor.
Further, described switching signal comprises the extremely low guard signal of steam water-level, steam water-level endangers low guard signal, the high guard signal of steam water-level, the high guard signal of vapor pressure, burner malfunctions guard signal, the too low guard signal of gaseous-pressure and blower fan overload protection signal.
Further, described simulating signal comprises vapor pressure, exhaust gas temperature and steam water-level.
Further, described communication interface module adopts RS485 protocol.
Further, described relay output module is connected to relay in burner, water pump and the alarm in boiler combustion system or solenoid valve.
Further, described power module adopts inverse-excitation type switch power-supply.
Further, described touch-screen is resistive touch screen.
Compared with prior art, the utility model has the advantages that:
First, have employed the mode of touch-screen, the mode combined relative to adopting button and LCDs at present on the market, convenient.Due to the use of abandoning button, on the one hand make the volume of whole controller panel less, also can avoid the situation that mechanical key serviceable life is limited on the other hand.In addition, this controller additionally uses the mode that PID controls, relative in prior art, the mode of the action of pilot relay or solenoid valve is directly carried out according to switching signal and simulating signal, make more accurately to put in place to the control of relay or solenoid valve, avoid owing to can not grasp completely the structure and parameter of boiler combustion system, or it is improper to can not get the control that accurate mathematical model causes, and causes the situation that control effects is undesirable.In addition, owing to being improve controller inside, be actually and pid control module has been arranged on the inside of controller, so, the PID controller just not needing again extra configuration one complete, make the installation wiring of equipment convenient on the one hand, decrease cost on the other hand.
Accompanying drawing explanation
Fig. 1 is the module principle figure of the utility model embodiment.
Embodiment
With reference to Fig. 1, the utility model embodiment is described further.
A kind of boiler intelligent controller, comprises, central processing module, has a cpu chip; Switching signal load module, for inputting the switching signal in boiler combustion system to central processing module; Analog input mModule, for inputting the simulating signal in boiler combustion system to central processing module; Pid control module, receives processing signals from central processing module and by the corresponding control signal of PID regulation output; Relay output module, for being transported to this control signal in boiler combustion system to realize controlling each relay or solenoid valve; Touch display module, has a touch-screen, is coupled to this central processing module, to realize to central processing module input operation signal and to show above-mentioned switching signal and simulating signal in real time; Data memory module, has a storage chip, is coupled to central processing module, for storing above-mentioned switching signal and simulating signal, in order to real-time calling; And power module, as the working power of above-mentioned modules.
In above scheme, switching signal load module, Analog input mModule and relay output module adopt 16 tunnel input and output, and scalability is high.In addition, pid control module is Intelligent PID Control module, and model is XME101.This Intelligent PID Control module can export by a road signal input two paths of signals.External form volume is little, and product adopts the snap-in mounting means of guide rail, is convenient to intensive installation.Multiple protective, isolation design, antijamming capability are strong, reliability is strong.
Instrument input signal comprises various types of mV, thermal resistance, thermocouple signal, transmitter power supply can be provided to on-the-spot two-wire system transducer return current signal, facilitate field adjustable.First via output signal exports for pid control signal, may be selected to be normalized current and exports or relay output; Second road signal is that change is sent or RS485 communication exports.The communication interface of instrument adopts Modbus-RTU pattern, highly versatile, easy to use.
The real advantage of this programme is:
First, have employed the mode of touch-screen, the mode combined relative to adopting button and LCDs at present on the market, convenient.Due to the use of abandoning button, on the one hand make the volume of whole controller panel less, also can avoid the situation that mechanical key serviceable life is limited on the other hand.In addition, this controller additionally uses the mode that PID controls, relative in prior art, the mode of the action of pilot relay or solenoid valve is directly carried out according to switching signal and simulating signal, make more accurately to put in place to the control of relay or solenoid valve, avoid owing to can not grasp completely the structure and parameter of boiler combustion system, or it is improper to can not get the control that accurate mathematical model causes, and causes the situation that control effects is undesirable.
Further, also comprise a communication interface module, adopt RS485 protocol, be coupled to this central processing module, data transmission can be carried out with central processing module to realize external unit.Like this, long-range wired or wireless transmission is realized, with handled easily room to the true-time operation at scene and monitoring by this communication interface module.
In the present embodiment, described cpu chip is Cortex-M0 processor, is existing minimum, arm processor that energy consumption is minimum, the most energy-conservation on market.This processor energy consumption is very low, door quantity is few, code takes up room little, makes MCU developer with the price of 8 bit processors, can obtain the performance of 32 bit processors.Ultralow door number also can be used for, in analog signalling and mixed signal device and MCU application, obviously can saving the expansion cost of system.
In the present embodiment, described switching signal comprises the extremely low guard signal of steam water-level, steam water-level endangers low guard signal, the high guard signal of steam water-level, the high guard signal of vapor pressure, burner malfunctions guard signal, the too low guard signal of gaseous-pressure and blower fan overload protection signal.
Wherein, when the water level in drum reaches an early warning value; water level monitor in drum can transmit this steam water-level by switching signal load module to central processing module and to endanger low guard signal; equally; when the water level in drum reaches liminal value and Up limit respectively, water level monitor transmits the extremely low guard signal of this steam water-level and the high guard signal of steam water-level respectively by switching signal load module to central processing module.In addition, when the vapor pressure in drum reaches Up limit, the pressure monitor in drum can transmit the high guard signal of this vapor pressure by switching signal load module to central processing module.In addition, when the blower fan of supply air system transships (working current exceedes certain value), relevant monitor can transmit this blower fan overload protection signal equally to be realized the adjustment to combustion system by controller.
In the present embodiment, described simulating signal comprises vapor pressure, exhaust gas temperature and steam water-level.
Wherein, vapor pressure is sent to central processing module by simulating signal load module by this pressure monitor, exhaust gas temperature is sent by the temperature monitoring that is arranged in exhaust opening, and be arranged on water level monitor in drum and also sent water level in drum by simulating signal load module to temperature monitoring.
In the present embodiment, described relay output module is connected to relay in burner, water pump and the alarm in boiler combustion system or solenoid valve.Therefore, when burner breaks down, above-mentioned controller just can carry out corresponding relay in control combustion device by relay output module and stop the work of burner, meanwhile, can also control this alarm work to realize to report to the police.
Further, described pid control module adopts negative feedback closed loop control mode.Specifically receive the signal (analog quantity and switching value) after CPU single treatment, corresponding control signal is exported again through inner pid algorithm, and be sent to by relay output module the object that each relay in boiler combustion system or solenoid valve reach control, in addition, the signal that switching signal load module and simulating signal load module input is sent to pid control module again through CPU, realize close-loop feedback, therefore, this pid control module according to its input and can export the final control signal output of real-time change, realizes dynamic adjustments.
Above, the benefit adopting PID to regulate can carry out more intelligent control to the solenoid valve on water pump, by detecting the SEA LEVEL VARIATION in drum, the lifting of the water level in water pump can be controlled in a less scope.And in prior art, just add water when water level is reduced to this lowest limit later again, and be elevated to Up limit and stop adding water later again, such control mode has larger defect in actual applications, when water consumption is larger, the situation of water pump insufficient water may be caused.Therefore, after have employed PID adjustment, constantly can regulate the output of water pump according to the rising or falling speed of SEA LEVEL VARIATION, realize a dynamic adjustments, such regulative mode is more reliable and more stable.In addition, also similar to the supply control mode of the fuel oil in burner or combustion gas, repeat no more.In addition, owing to being improve controller inside, be actually and pid control module has been arranged on the inside of controller, so, the PID controller just not needing again extra configuration one complete, make the installation wiring of equipment convenient on the one hand, decrease cost on the other hand.
In addition, described power module adopts inverse-excitation type switch power-supply.This kind of power supply has energy-conservation, and installation volume is little, and quality is light, the feature of adjustable any output-input voltage size of current, and the difference that can meet multichannel multiple voltage exports, and provides the operating voltage of modules in controller.Because volume is little, therefore can directly and modules fit together, do not need independent casing, greatly reducing circuit arrange and cost.
In addition, described touch-screen is resistive touch screen.Due in workshop, staff all wears gloves, if so adopt capacitive touch-screen, so just need to operate under glove picking touch-screen, so very inconvenience, so adopting after resistive touch screen, just can operate touch-screen when not taking off gloves.
What deserves to be explained is, the utility model has made improvement for controller itself, instead of boiler combustion system is made improvements, therefore, those skilled in the art are grasping on the basis of boiler combustion system completely, then in conjunction with the elaboration of above scheme, should understand the using method of controller provided by the utility model, therefore, the present embodiment just no longer provides the schematic diagram of each equipment in boiler combustion system.In addition, for the miscellaneous equipment in combustion system and relevant parameter, all can directly be communicated to switching signal load module, because boiler combustion system belongs to known technology current, therefore, concrete equipment wherein and principle is just repeated no more in an embodiment.
Claims (9)
1. a boiler intelligent controller, comprises,
Central processing module, has a cpu chip;
Switching signal load module, for inputting the switching signal in boiler combustion system to central processing module;
Analog input mModule, for inputting the simulating signal in boiler combustion system to central processing module;
Pid control module, receives processing signals from central processing module and by the corresponding control signal of PID regulation output;
Relay output module, for being transported to this control signal in boiler combustion system to realize controlling each relay or solenoid valve;
Touch display module, has a touch-screen, is coupled to this central processing module, to realize to central processing module input operation signal and to show above-mentioned switching signal and simulating signal in real time;
Data memory module, has a storage chip, is coupled to central processing module, for storing above-mentioned switching signal and simulating signal, in order to real-time calling;
And power module, as the working power of above-mentioned modules.
2. boiler intelligent controller according to claim 1, is characterized in that: also comprise a communication interface module, is coupled to this central processing module, can carry out data transmission to realize external unit with central processing module.
3. boiler intelligent controller according to claim 1, is characterized in that: described cpu chip is Cortex-M0 processor.
4. boiler intelligent controller according to claim 1, is characterized in that: described switching signal comprises the extremely low guard signal of steam water-level, steam water-level endangers low guard signal, the high guard signal of steam water-level, the high guard signal of vapor pressure, burner malfunctions guard signal, the too low guard signal of gaseous-pressure and blower fan overload protection signal.
5. boiler intelligent controller according to claim 1, is characterized in that: described simulating signal comprises vapor pressure, exhaust gas temperature and steam water-level.
6. boiler intelligent controller according to claim 2, is characterized in that: described communication interface module adopts RS485 protocol.
7. boiler intelligent controller according to claim 1, is characterized in that: described relay output module is connected to relay in burner, water pump and the alarm in boiler combustion system or solenoid valve.
8. boiler intelligent controller according to claim 1, is characterized in that: described power module adopts inverse-excitation type switch power-supply.
9. boiler intelligent controller according to claim 1, is characterized in that: described touch-screen is resistive touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520107546.7U CN204423051U (en) | 2015-02-13 | 2015-02-13 | Boiler intelligent controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520107546.7U CN204423051U (en) | 2015-02-13 | 2015-02-13 | Boiler intelligent controller |
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| CN204423051U true CN204423051U (en) | 2015-06-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157003A (en) * | 2015-10-08 | 2015-12-16 | 清远市精旺环保设备有限公司 | Intelligent burner |
| CN106382616A (en) * | 2016-11-25 | 2017-02-08 | 浦北县科学技术开发中心 | Water inlet control system for coal power generating boiler |
| CN106642060A (en) * | 2016-12-27 | 2017-05-10 | 重庆智神科技有限公司 | Display device and boiler control system |
| CN107885137A (en) * | 2018-01-10 | 2018-04-06 | 苏州汉策能源设备有限公司 | A kind of boiler combustion controller of structure novel |
-
2015
- 2015-02-13 CN CN201520107546.7U patent/CN204423051U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157003A (en) * | 2015-10-08 | 2015-12-16 | 清远市精旺环保设备有限公司 | Intelligent burner |
| CN105157003B (en) * | 2015-10-08 | 2018-07-31 | 清远市精旺环保设备有限公司 | Intelligent combustion machine |
| CN106382616A (en) * | 2016-11-25 | 2017-02-08 | 浦北县科学技术开发中心 | Water inlet control system for coal power generating boiler |
| CN106642060A (en) * | 2016-12-27 | 2017-05-10 | 重庆智神科技有限公司 | Display device and boiler control system |
| CN107885137A (en) * | 2018-01-10 | 2018-04-06 | 苏州汉策能源设备有限公司 | A kind of boiler combustion controller of structure novel |
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