CN210951383U - Multi-gun boiler control system - Google Patents
Multi-gun boiler control system Download PDFInfo
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- CN210951383U CN210951383U CN201921751820.9U CN201921751820U CN210951383U CN 210951383 U CN210951383 U CN 210951383U CN 201921751820 U CN201921751820 U CN 201921751820U CN 210951383 U CN210951383 U CN 210951383U
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Abstract
The utility model relates to a multi-gun boiler control system, which comprises a singlechip, a power supply unit, a signal acquisition unit, an instruction sending unit, a path number selection unit, a multi-path part control unit, a multi-path signal detection unit and a multi-path signal output unit, wherein the power supply unit, the signal acquisition unit, the instruction sending unit, the path number selection unit, the multi-path part control unit, the multi-path signal detection unit and the; every part control unit all is connected with ignition transformer, ignition valve, fan and governing valve all way, and every way signal detection unit all includes valves detection module, flame detection module, atmospheric pressure detection module and wind pressure detection module, the singlechip sends unit and way number selection unit according to the instruction, and control signal acquisition unit and multichannel signal detection unit gather respectively and detect the parameter of corresponding way number, according to gathering and testing result, control the operating condition of part in the corresponding way number to output corresponding signal. This patent realizes the control to many combustors through one set of control system, does not need extra wiring, has saved investment and fault rate.
Description
Technical Field
The utility model relates to a boiler control technical field, concretely relates to boiler control system who disposes burning of many guns.
Background
Along with the increasing application of gas-fired boilers, particularly the increasing tonnage, the flow of a single valve bank and the safety of premixed combustion cannot meet the requirements, a plurality of sets of valve banks and a plurality of combustors need to be matched to meet the load requirements of the boilers, however, in the existing boiler control system with a plurality of combustors, one (one gun) combustor needs to be matched with one set of valve bank and one set of control system, the control system realizes the state control of the components, the detection of the parameters and the judgment of the faults, if N combustors exist, the whole boiler needs to be matched with N sets of control systems and 1 master controller, each control system is connected with the master controller, the wiring is complex, and the control systems are not connected with each other, when one set of control system is abnormal, the master controller can not stop other combustors in time, and other combustors still work, so that certain potential safety hazards are realized.
SUMMERY OF THE UTILITY MODEL
For solving the problem that above-mentioned prior art exists, the utility model provides a many guns boiler control system realizes the control to many combustors through one set of control system, does not need extra wiring, has saved investment and fault rate, and the control of boiler is safer.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a multi-gun boiler control system is characterized in that a boiler comprises a plurality of parallel-connected combustors, and the combustors comprise a single chip microcomputer, and a power supply unit, a signal acquisition unit, an instruction sending unit, a path number selection unit, a multi-path component control unit, a multi-path signal detection unit and a multi-path signal output unit which are connected with the single chip microcomputer; each combustor corresponds to one path of component control unit, one path of signal detection unit and one path of signal output unit; each path of component control unit is connected with an ignition transformer, an ignition valve, a fan and a regulating valve, each path of signal detection unit comprises a valve group detection module, a flame detection module, an air pressure detection module and an air pressure detection module, and each path of signal output unit comprises switching value output and analog signal output;
the single chip microcomputer controls the signal acquisition unit and the multi-path signal detection unit to respectively acquire and detect parameters of corresponding paths according to the instruction sending unit and the path number selection unit, controls the working states of the ignition transformer, the ignition valve, the fan and the regulating valve in the corresponding paths according to the acquisition and detection results, and outputs corresponding signals.
As one of the preferred schemes of the utility model, still include the failure diagnosis unit, signal acquisition unit and multichannel signal detecting element are connected to the failure diagnosis unit, and the singlechip is according to the judged result of failure diagnosis unit, whether control whole boiler shut down and report to the police.
As one of the preferable schemes of the present invention, the failure determination unit is connected to the valve group detection module, the flame detection module, the air pressure detection module and the air pressure detection module in each path of signal detection unit; and when the judgment result is that one of the valve banks, the flame condition and the air pressure or the air pressure are abnormal, the single chip microcomputer controls the whole boiler to stop and give an alarm.
As one of the preferable proposal of the utility model, the number of the paths selecting unit is automatically or manually matched with the corresponding number of the paths according to the tonnage, and the number of the paths is an integer from 2 to 16.
As one of the preferred schemes of the utility model, the boiler includes N parallelly connected combustors, and N is the integer in 2-16, correspondingly, multi-gun boiler control system includes N way part the control unit, N way signal detection unit and N way signal output unit.
As one of the preferable schemes of the utility model, the number of the ignition transformer, the ignition valve, the regulating valve, the valve group detection module, the air pressure detection module and the air pressure detection module is N; the fan is 1, the flame detection module is N +2, and wherein 2 flame detection modules are used for detecting the pilot fire.
As one preferable aspect of the present invention, the multipath component control unit performs ignition in a divided manner in accordance with the order of the number of paths.
As one of the preferable schemes of the utility model, the ignition device also comprises an ignition feedback circuit which feeds back the current ignition condition of the ignition valve to the singlechip; and the single chip microcomputer controls the opening of the next ignition valve or the stopping of the whole boiler according to the ignition condition and gives an alarm.
As one of the preferred schemes of the utility model, the signal acquisition unit includes switching signal, switching value input buffer circuit, analog signal and omnipotent signal input acquisition processing gating and buffer circuit, the instruction sends the unit and includes desktop computer or intelligent Mobile terminal and communication connecting device.
As one of the preferable schemes of the utility model, the singlechip selects 32 bits for use
A kernel microcontroller.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) each path of component control unit, the signal detection unit and the signal output unit are directly connected with the single chip microcomputer, the single chip microcomputer is used for sending out the unit and the path number selection unit according to the instruction, controlling the signal acquisition unit and the multi-path signal detection unit to respectively acquire and detect parameters of corresponding paths, controlling the states of the ignition transformer, the ignition valve, the fan and the regulating valve in the corresponding paths according to the acquisition and detection results, and outputting corresponding signals. Therefore, the operation process of the whole boiler can be controlled through the single chip microcomputer, and compared with a traditional control system, the boiler is safer and the route connection is simpler.
(2) The ignition is carried out in a subarea mode according to the path number sequence, an ignition feedback circuit is arranged, and the ignition condition of the current ignition valve is fed back to the single chip microcomputer; if the ignition is successful, the singlechip controls the next ignition valve to be opened according to the ignition condition; if the ignition is unsuccessful, the single chip microcomputer controls the whole boiler to stop and give an alarm, and the back purging is carried out. Thereby further improving the safety performance of the boiler control system.
Drawings
FIG. 1 is a schematic view of the control system of a multi-lance boiler
FIG. 2 is a flow chart of a multi-lance boiler control system.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of protection of the invention is not limited thereto:
as shown in figure 1, the multi-lance boiler control system of the utility model is suitable for boilers comprising a plurality of parallel combustors, 2-16 combustors are preferred in the embodiment, and the specific path number can be manually or automatically set in the path number selection unit to match the tonnage. Correspondingly, the multi-gun boiler control system comprises a 2-16-path component control unit, a 2-16-path signal detection unit and a 2-16-path signal output unit.
2-16 ignition transformers, ignition valves, regulating valves, valve group detection modules, air pressure detection modules and air pressure detection modules are arranged; the number of the fans is 1 or 2-16, the number of the fans is preferably 1 in the embodiment, the number of the flame detection modules is 2-16+2, and 2 flame detection modules are used for detecting pilot fire.
The utility model discloses a multi-gun boiler control system comprises a singlechip, a power supply unit, a signal acquisition unit, an instruction sending unit, a path number selection unit, a multi-path part control unit, a multi-path signal detection unit and a multi-path signal output unit; each combustor corresponds to one path of component control unit, one path of signal detection unit and one path of signal output unit.
Each path of component control unit is connected with an ignition transformer, an ignition valve, a fan and a regulating valve through a corresponding circuit, each path of signal detection unit comprises a valve group detection module, a flame detection module, an air pressure detection module and an air pressure detection module, and each path of signal output unit comprises switching value output and analog signal output.
The signal acquisition unit comprises a switching signal, a switching value input isolation circuit, an analog signal and universal signal input acquisition processing gating and isolation circuit, and the instruction sending unit comprises a desktop computer or an intelligent mobile terminal and communication equipment such as RS485& USB & Bluetooth & WIFI & CAN. The power supply unit comprises a switching power supply and a power supply input circuit.
This patent among the control system, each way part control unit, signal detection unit and signal output unit are all directly connected with the singlechip, and the singlechip sends unit and way number selection unit according to the instruction, and control signal acquisition unit and multichannel signal detection unit gather respectively and detect the parameter of corresponding way number, according to gathering and testing result, controls the state of ignition transformer, ignition valve, fan and governing valve in the corresponding way number to output corresponding signal. Therefore, the operation process of the whole boiler can be controlled through the single chip microcomputer, and compared with a traditional control system, the boiler is safer and the route connection is simpler.
The single chip machine in this embodiment can adopt
Microcontroller of kernel, preferably 32 bits in this embodiment
And the kernel microcontroller is used for realizing the functions.
Control system still includes the fault diagnosis unit, and fault diagnosis unit connection signal acquisition unit and multichannel signal detecting element, singlechip are according to the judged result of fault diagnosis unit, control whether whole boiler shuts down and reports to the police.
In this embodiment, the fault determination unit is connected to the valve group detection module, the flame detection module, the air pressure detection module and the air pressure detection module in each path of signal detection unit; and when the judgment result shows that the valve group, the flame condition, the air pressure or the air pressure of one path are abnormal, the single chip controls the whole boiler to stop and give an alarm, and the back purging is carried out. Namely, as long as one of the parameters is abnormal, the boiler is stopped and gives an alarm, thereby ensuring the safe operation of the whole boiler.
In the control process of the multi-lance boiler, if ignition is carried out simultaneously, certain potential safety hazards exist, the multi-lance boiler is ignited in a way of dividing according to the way number sequence, for example, more than 3 ways are selected, and preferably, ignition is started from the area where the middle way is located, and ignition is sequentially carried out from left to right. Before the next path is ignited, the flame in the area of the previous path needs to be detected, otherwise, the next path is not ignited. Therefore, in the present embodiment, an ignition feedback circuit is further provided in the control system, and the ignition feedback circuit feeds back the current ignition condition of the ignition valve to the single chip microcomputer; if the ignition is successful, the singlechip controls the next ignition valve to be opened according to the ignition condition; if the ignition is unsuccessful, the single chip microcomputer controls the whole boiler to stop and give an alarm, and the back purging is carried out.
As shown in FIG. 2, the control flow of the multi-gun boiler control system of the utility model is as follows:
the power supply unit is used for electrifying and initializing the whole boiler, manually inputting corresponding paths and corresponding instructions, and the single chip microcomputer controls the information acquisition unit to read data;
the fault judging unit compares the switching signal and the analog signal lamp to judge whether the signal lamp is abnormal or not; if the abnormal condition exists, the machine is stopped to alarm and overhaul, if the abnormal condition does not exist, the number of the selected paths is judged,
the multi-path signal detection unit detects whether the valve group is disconnected or not, the flame module state, the valve group leakage, the air pressure and the like, and transmits the signals to the fault judgment unit;
if any one is abnormal, stopping the boiler to alarm;
if no abnormity exists, the fans of corresponding paths are opened for front purging, the zone 1 enters an ignition state, the V1 valve is opened, the ignition transformer and the ignition valve are opened for ignition,
the ignition feedback circuit detects the ignition valve area, if the ignition is unsuccessful within 3 times, the alarm is given out, the machine is stopped, the post-purging is carried out, and if the ignition is successful within 3 times, the V2 valve is continuously opened;
and 2, the V1 valve is opened, the ignition transformer and the ignition valve are both opened for ignition, the ignition feedback circuit continues to detect the flame in the area, if the ignition is successful, the ignition of the next area is continued,
and by analogy, the ignition of all paths is completed, the single chip microcomputer adds and subtracts the loads of all paths according to the multi-path signal output unit, and the frequency of an air valve, a fan and the like are adjusted so as to complete the control process of the boiler.
The embodiments of the present invention have been described in detail, and those skilled in the art can easily understand that there are various changes in the embodiments according to the idea of the present invention, and such changes should be considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides a many guns boiler control system, the boiler includes many parallelly connected combustors which characterized in that:
the system comprises a singlechip, and a power supply unit, a signal acquisition unit, an instruction sending unit, a path number selection unit, a multi-path component control unit, a multi-path signal detection unit and a multi-path signal output unit which are connected with the singlechip;
each combustor corresponds to one path of component control unit, one path of signal detection unit and one path of signal output unit; each path of component control unit is connected with an ignition transformer, an ignition valve, a fan and a regulating valve, each path of signal detection unit comprises a valve group detection module, a flame detection module, an air pressure detection module and an air pressure detection module, and each path of signal output unit comprises switching value output and analog signal output;
the single chip microcomputer controls the signal acquisition unit and the multi-path signal detection unit to respectively acquire and detect parameters of corresponding paths according to the instruction sending unit and the path number selection unit, controls the working states of the ignition transformer, the ignition valve, the fan and the regulating valve in the corresponding paths according to the acquisition and detection results, and outputs corresponding signals.
2. The multi-lance boiler control system of claim 1 wherein:
the single-chip microcomputer controls whether the whole boiler is shut down and gives an alarm according to the judgment result of the fault judgment unit.
3. The multi-lance boiler control system of claim 2, wherein:
the fault judgment unit is connected with the valve group detection module, the flame detection module, the air pressure detection module and the air pressure detection module in each path of signal detection unit;
and when the judgment result is that one of the valve banks, the flame condition and the air pressure or the air pressure are abnormal, the single chip microcomputer controls the whole boiler to stop and give an alarm.
4. The multi-lance boiler control system of claim 3 wherein:
the number of roads selecting unit automatically or manually matches the corresponding number of roads according to the tonnage, and the number of roads is an integer from 2 to 16.
5. The multi-lance boiler control system of claim 4, wherein:
the boiler comprises N parallel-connected combustors, N is an integer from 2 to 16, and correspondingly, the multi-gun boiler control system comprises N parts control units, N signal detection units and N signal output units.
6. The multi-lance boiler control system of claim 5, wherein:
the ignition transformer, the ignition valve, the regulating valve, the valve group detection module, the air pressure detection module and the air pressure detection module are all N; the fan is 1, the flame detection module is N +2, and wherein 2 flame detection modules are used for detecting the pilot fire.
7. The multi-lance boiler control system of claim 6 wherein:
the multi-path component control unit performs ignition in a partition mode according to the path number sequence.
8. The multi-lance boiler control system of claim 7 wherein:
the ignition feedback circuit feeds back the current ignition condition of the ignition valve to the single chip microcomputer; and the single chip microcomputer controls the opening of the next ignition valve or the stopping of the whole boiler according to the ignition condition and gives an alarm.
9. The multi-lance boiler control system of claim 1 wherein:
the signal acquisition unit comprises a switching signal, a switching value input isolation circuit, an analog signal and universal signal input acquisition processing gating and isolation circuit, and the instruction sending unit comprises a desktop computer or an intelligent mobile terminal and communication connection equipment.
10. The multi-lance boiler control system of any one of claims 1-9, wherein:
the singlechip selects 32 bits
An M4 kernel microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921751820.9U CN210951383U (en) | 2019-10-18 | 2019-10-18 | Multi-gun boiler control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921751820.9U CN210951383U (en) | 2019-10-18 | 2019-10-18 | Multi-gun boiler control system |
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| CN210951383U true CN210951383U (en) | 2020-07-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686273A (en) * | 2019-10-18 | 2020-01-14 | 浙江力聚热水机有限公司 | Multi-gun boiler control system |
| CN116792777A (en) * | 2023-05-22 | 2023-09-22 | 氨邦科技有限公司 | Boiler adulterated ammonia combustion sequence control system |
| CN116792777B (en) * | 2023-05-22 | 2024-05-31 | 氨邦科技有限公司 | Boiler adulterated ammonia combustion sequence control system |
-
2019
- 2019-10-18 CN CN201921751820.9U patent/CN210951383U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686273A (en) * | 2019-10-18 | 2020-01-14 | 浙江力聚热水机有限公司 | Multi-gun boiler control system |
| CN116792777A (en) * | 2023-05-22 | 2023-09-22 | 氨邦科技有限公司 | Boiler adulterated ammonia combustion sequence control system |
| CN116792777B (en) * | 2023-05-22 | 2024-05-31 | 氨邦科技有限公司 | Boiler adulterated ammonia combustion sequence control system |
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Address after: 313023 No. 9, maowu Road, shangqiang Industrial Park, Daixi Town, Wuxing District, Deqing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Liju thermal energy equipment Co.,Ltd. Address before: 313023 No. 9, maowu Road, shangqiang Industrial Park, Daixi Town, Wuxing District, Deqing County, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG UNIPOWER BOILER Co.,Ltd. |