CN116576445A - Method and system for controlling starting of gas boiler - Google Patents
Method and system for controlling starting of gas boiler Download PDFInfo
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- CN116576445A CN116576445A CN202310480001.XA CN202310480001A CN116576445A CN 116576445 A CN116576445 A CN 116576445A CN 202310480001 A CN202310480001 A CN 202310480001A CN 116576445 A CN116576445 A CN 116576445A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000010926 purge Methods 0.000 claims abstract description 35
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims description 66
- 230000001276 controlling effect Effects 0.000 claims description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 56
- 230000001105 regulatory effect Effects 0.000 claims description 46
- 230000002159 abnormal effect Effects 0.000 claims description 23
- 238000004880 explosion Methods 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000008400 supply water Substances 0.000 claims description 4
- 230000008034 disappearance Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Water Supply & Treatment (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The application relates to the technical field of gas boiler control, in particular to a gas boiler starting control method and system. Comprising the following steps: receiving a starting instruction for starting the gas boiler, and purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the starting instruction; after purging the ignition gas pipeline of the gas boiler, detecting whether a gas burst test for ignition reaches the standard or not, and igniting the gas boiler according to a detection result; the operation state of the gas boiler is monitored in real time, the operation state comprises a normal state and a fault state, and when the operation state of the gas boiler is the fault state, tripping control is carried out on the gas boiler. According to the application, the plurality of devices of the gas boiler system are detected according to the starting instruction, the fault condition generated in the gas boiler system is discharged, the gas boiler is stably started, the phenomenon of starting failure is reduced, and the running stability of the whole boiler is improved.
Description
Technical Field
The application relates to the technical field of gas boiler control, in particular to a gas boiler starting control method and system.
Background
In most of the existing power plants, a gas-steam boiler is used, and the gas-steam boiler is in a double-drum longitudinal D-shaped structure and consists of a furnace body, a superheater, an economizer and a burner, wherein the burner adopts a split burner, is horizontally arranged on a front wall and is provided with a blower. The burner is provided with an automatic sequence ignition device and an ignition safety protection device, has the functions of leak detection, purging, flame detection, flameout protection, intake pressure protection and the like, and is automatically controlled.
However, in the prior art, ignition is required in the process of using the gas boiler, ignition failure is the most common fault, ignition failure is most likely to occur in the process of using the gas boiler, so that the gas boiler cannot work normally, and the cause of the fault is based on the fault caused by internal devices of the boiler, so how to provide a gas boiler starting control method and system aiming at the frequently occurring starting failure phenomenon is a technical problem which needs to be solved by a person skilled in the art.
Disclosure of Invention
The application aims to provide a gas boiler starting control method and a system, which are used for detecting a plurality of devices of a gas boiler system according to a starting instruction, discharging the fault condition generated inside, stably starting the gas boiler, reducing the phenomenon of starting failure and improving the running stability of the whole boiler.
In order to achieve the above object, the present application provides the following technical solutions:
a gas boiler start-up control method, comprising:
receiving a starting instruction for starting the gas boiler, and purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the starting instruction;
after purging the ignition gas pipeline of the gas boiler, detecting whether a gas burst test for ignition reaches the standard or not, and igniting the gas boiler according to a detection result; wherein,,
when the detection result of the gas explosion test is up to standard, igniting the gas boiler;
when the detection result of the gas explosion test is that the gas explosion test does not reach the standard, the gas boiler is not ignited, and the gas boiler is locked;
and monitoring the operation state of the gas boiler in real time, wherein the operation state comprises a normal state and a fault state, and when the operation state of the gas boiler is the fault state, tripping control is carried out on the gas boiler.
In some embodiments of the present application, before receiving the start command of the gas start boiler, the method further includes:
detecting a heat supply unit of the gas boiler and obtaining the starting instruction;
acquiring a real-time difference value set value of the water outlet temperature and the water return temperature of the heat supply unit according to the starting instruction, and updating an original difference value set value of the heat supply unit according to the real-time difference value set value;
and after the original difference value set value of the heat supply unit is updated, sending the starting instruction.
In some embodiments of the present application, after the igniting the gas boiler according to the detection result, the method further includes:
the gas boiler is subjected to pressure linkage protection according to a pressure monitoring point arranged at a fire nozzle and a pressure switch arranged at a main pipe;
controlling a gas quick-closing valve of the gas boiler to be opened, controlling a burner air door of the gas boiler to reach a first preset opening value, and controlling a gas regulating valve of the gas boiler to be regulated to a second preset opening value of an ignition position;
controlling an ignition transformer of the gas boiler to open an ignition valve after a first preset time period, and closing the ignition transformer to perform ignition after a second preset time period;
when the ignition transformer is turned off to perform ignition, a first main air valve and a second main air valve of the burner of the gas boiler are controlled to be opened, and after a third preset time period, the burner of the gas boiler is controlled to be turned off;
and controlling an air door of the combustor of the gas boiler to reach a third preset opening value, and controlling a gas regulating valve of the gas boiler to reach a fourth preset opening value.
In some embodiments of the present application, the receiving a start command for starting the gas boiler, purging a furnace of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the start command further includes:
according to the starting instruction, controlling a water supply pump of the gas boiler to supply water to the gas boiler, detecting the liquid level state of the gas boiler in real time, and generating a control signal according to the liquid level state, wherein the liquid level state comprises a normal liquid level state and an abnormal liquid level state;
when the liquid level state is the normal liquid level state, purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the control signal and the starting instruction;
when the liquid level state is the abnormal liquid level state, the starting instruction is controlled to disappear according to the control signal, and the gas boiler is detected.
In some embodiments of the present application, when the liquid level state is the abnormal liquid level state, the control signal controls the start command to disappear, and detects the gas boiler, including:
detecting the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve of the gas boiler, and determining whether the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve are abnormal or not.
In order to achieve the above object, the present application further provides a gas boiler start control system, which is applied to the gas boiler start control method, including:
the starting module is used for receiving a starting instruction for starting the gas boiler, purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the starting instruction;
the ignition module is used for detecting whether a gas burst test for ignition reaches the standard or not after the ignition gas pipeline of the gas boiler is purged, and igniting the gas boiler according to a detection result; wherein,,
when the detection result of the gas explosion test is up to standard, igniting the gas boiler;
when the detection result of the gas explosion test is that the gas explosion test does not reach the standard, the gas boiler is not ignited, and the gas boiler is locked;
the protection module is used for monitoring the operation state of the gas boiler in real time, wherein the operation state comprises a normal state and a fault state, and when the operation state of the gas boiler is the fault state, tripping control is carried out on the gas boiler.
In some embodiments of the present application, the starting module is further configured to detect a heating unit of the gas boiler, and obtain the starting instruction;
the starting module is also used for acquiring a real-time difference value set value of the water outlet temperature and the water return temperature of the heat supply unit according to the starting instruction, and updating an original difference value set value of the heat supply unit according to the real-time difference value set value;
the starting module is also used for sending the starting instruction after updating the original difference value set value of the heating unit.
In some embodiments of the application, the ignition module is further used for performing pressure linkage protection on the gas boiler according to a pressure monitoring point arranged at a fire nozzle and a pressure switch arranged at a main pipe;
the ignition module is also used for controlling the gas quick-closing valve of the gas boiler to be opened, controlling the burner regulating air door of the gas boiler to reach a first preset opening value and controlling the gas regulating valve of the gas boiler to be regulated to a second preset opening value of an ignition position;
the ignition module is also used for controlling an ignition transformer of the gas boiler to open an ignition valve after a first preset time period and closing the ignition transformer to perform ignition after a second preset time period;
the ignition module is also used for controlling the first main air valve and the second main air valve of the burner of the gas boiler to be opened after the ignition transformer is closed for ignition, and controlling the burner of the gas boiler to close the ignition valve after a third preset time period;
the ignition module is also used for controlling the air door of the burner of the gas boiler to reach a third preset opening value and controlling the gas regulating valve of the gas boiler to reach a fourth preset opening value.
In some embodiments of the present application, the starting module is further configured to control a water feed pump of the gas boiler to feed water to the gas boiler according to the starting instruction, detect a liquid level state of the gas boiler in real time, and generate a control signal according to the liquid level state, where the liquid level state includes a normal liquid level state and an abnormal liquid level state;
the starting module is also used for purging the hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the control signal and the starting instruction when the liquid level state is the normal liquid level state;
and the starting module is also used for controlling the starting instruction to disappear according to the control signal when the liquid level state is the abnormal liquid level state and detecting the gas boiler.
In some embodiments of the present application, the starting module is further configured to detect an operating state of a deaerator water inlet regulating valve, an operating state of a water supply pump, and an operating state of a water supply regulating valve of the gas boiler when the liquid level state is the abnormal liquid level state and the gas boiler is detected, and determine whether there is an abnormality in the operating state of the deaerator water inlet regulating valve, the operating state of the water supply pump, and the operating state of the water supply regulating valve.
Compared with the prior art, the application provides a method and a system for controlling the starting of a gas boiler, which have the beneficial effects that:
according to the application, the hearth of the gas boiler is purged through the starting instruction, the ignition gas pipeline of the gas boiler is purged, the gas boiler is ignited by combining with the gas burst test, the gas boiler is systematically and comprehensively detected, the ignition failure phenomenon is effectively reduced, and the control of tripping, instruction disappearance and the like is timely performed when the boiler fails by combining with various safety association protection modes, so that the overall operation safety of the gas boiler system is improved, and the working efficiency is improved.
Drawings
FIG. 1 is a flowchart of a method for controlling the start-up of a gas boiler in an embodiment of the present application;
fig. 2 is a functional block diagram of a gas boiler start-up control system in an embodiment of the present application.
Detailed Description
The following describes in further detail the embodiments of the present application with reference to the drawings and examples. The following examples are illustrative of the application and are not intended to limit the scope of the application.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the inner sides of the two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, a disclosed embodiment of the application provides a method for controlling start-up of a gas boiler, comprising:
receiving a starting instruction for starting the gas boiler, and purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the starting instruction;
after purging the ignition gas pipeline of the gas boiler, detecting whether a gas burst test for ignition reaches the standard or not, and igniting the gas boiler according to a detection result; wherein,,
when the detection result of the gas explosion test is up to standard, igniting the gas boiler;
when the detection result of the gas explosion test is that the gas explosion test does not reach the standard, the gas boiler is not ignited, and the gas boiler is locked;
the operation state of the gas boiler is monitored in real time, the operation state comprises a normal state and a fault state, and when the operation state of the gas boiler is the fault state, tripping control is carried out on the gas boiler.
In a specific embodiment of the present application, before receiving a start command for starting the boiler by using the gas, the method further includes:
detecting a heat supply unit of the gas boiler and obtaining a starting instruction;
according to the starting instruction, a real-time difference value set value of the water outlet temperature and the water return temperature of the heat supply unit is obtained, and according to the real-time difference value set value, the original difference value set value of the heat supply unit is updated;
and after the original difference value set value of the heat supply unit is updated, sending a starting instruction.
In a specific embodiment of the present application, after the gas boiler is ignited according to the detection result, the method further includes:
the gas boiler is subjected to pressure linkage protection according to a pressure monitoring point arranged at the fire nozzle and a pressure switch arranged at the main pipe;
controlling a gas quick-closing valve of the gas boiler to be opened, controlling a burner regulating air door of the gas boiler to reach a first preset opening value, and controlling a gas regulating valve of the gas boiler to be regulated to a second preset opening value of an ignition position;
controlling an ignition transformer of the gas boiler to open an ignition valve after a first preset time period, and closing the ignition transformer to perform ignition after a second preset time period;
when the ignition transformer is turned off to perform ignition, the first main air valve and the second main air valve of the burner of the gas boiler are controlled to be opened, and after a third preset time period, the burner of the gas boiler is controlled to be closed;
and controlling an air door of a burner of the gas boiler to reach a third preset opening value, and controlling a gas regulating valve of the gas boiler to reach a fourth preset opening value.
In a specific embodiment of the present application, a start instruction for starting the gas boiler is received, and according to the start instruction, the furnace of the gas boiler is purged, and the ignition gas pipeline of the gas boiler is purged, and the method further includes:
according to the starting instruction, controlling a water supply pump of the gas boiler to supply water to the gas boiler, detecting the liquid level state of the gas boiler in real time, and generating a control signal according to the liquid level state, wherein the liquid level state comprises a normal liquid level state and an abnormal liquid level state;
when the liquid level state is a normal liquid level state, purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the control signal and the starting instruction;
when the liquid level state is an abnormal liquid level state, the starting instruction is controlled to disappear according to the control signal, and the gas boiler is detected.
In a specific embodiment of the present application, when the liquid level state is an abnormal liquid level state, the start command is controlled to disappear according to the control signal, and the gas boiler is detected, including:
detecting the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve of the gas boiler, and determining whether the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve are abnormal or not.
Based on the same technical concept, referring to fig. 2, the application further correspondingly provides a gas boiler start control system, which is applied to a gas boiler start control method, comprising the following steps:
the starting module is used for receiving a starting instruction for starting the gas boiler, purging a hearth of the gas boiler according to the starting instruction and purging an ignition gas pipeline of the gas boiler;
the ignition module is used for detecting whether a gas burst test for ignition reaches the standard or not after the ignition gas pipeline of the gas boiler is purged, and igniting the gas boiler according to the detection result; wherein,,
when the detection result of the gas explosion test is up to standard, igniting the gas boiler;
when the detection result of the gas explosion test is that the gas explosion test does not reach the standard, the gas boiler is not ignited, and the gas boiler is locked;
the protection module is used for monitoring the operation state of the gas boiler in real time, wherein the operation state comprises a normal state and a fault state, and when the operation state of the gas boiler is the fault state, the gas boiler is subjected to tripping control.
In a specific embodiment of the application, the starting module is further used for detecting a heating unit of the gas boiler and obtaining a starting instruction;
the starting module is also used for acquiring a real-time difference value set value of the water outlet temperature and the water return temperature of the heat supply unit according to the starting instruction, and updating an original difference value set value of the heat supply unit according to the real-time difference value set value;
the starting module is also used for sending a starting instruction after updating the original difference value set value of the heat supply unit.
In a specific embodiment of the application, the ignition module is also used for carrying out pressure linkage protection on the gas boiler according to a pressure monitoring point arranged at the fire nozzle and a pressure switch arranged at the main pipe;
the ignition module is also used for controlling the gas quick-closing valve of the gas boiler to be opened, controlling the burner regulating air door of the gas boiler to reach a first preset opening value and controlling the gas regulating valve of the gas boiler to be regulated to a second preset opening value of an ignition position;
the ignition module is also used for controlling an ignition transformer of the gas boiler to open an ignition valve after a first preset time period and closing the ignition transformer to perform ignition after a second preset time period;
the ignition module is also used for controlling the first main air valve and the second main air valve of the burner of the gas boiler to be opened after the ignition transformer is closed for ignition, and controlling the burner of the gas boiler to close the ignition valve after a third preset time period;
the ignition module is also used for controlling an air door of a combustor of the gas boiler to reach a third preset opening value and controlling a gas regulating valve of the gas boiler to reach a fourth preset opening value.
In a specific embodiment of the application, the starting module is further used for controlling a water supply pump of the gas boiler to supply water to the gas boiler according to a starting instruction, detecting the liquid level state of the gas boiler in real time, and generating a control signal according to the liquid level state, wherein the liquid level state comprises a normal liquid level state and an abnormal liquid level state;
the starting module is also used for purging the hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the control signal and the starting instruction when the liquid level state is a normal liquid level state;
the starting module is also used for controlling the starting instruction to disappear according to the control signal when the liquid level state is an abnormal liquid level state and detecting the gas boiler.
In a specific embodiment of the present application, the starting module is further configured to detect an operating state of a deaerator water inlet regulating valve, an operating state of a water supply pump, and an operating state of a water supply regulating valve of the gas boiler when the liquid level state is an abnormal liquid level state and the gas boiler is detected, and determine whether the operating state of the deaerator water inlet regulating valve, the operating state of the water supply pump, and the operating state of the water supply regulating valve are abnormal.
In summary, the application sweeps the hearth of the gas boiler by the starting instruction, sweeps the ignition gas pipeline of the gas boiler and ignites the gas boiler by combining with the gas burst test, thereby effectively reducing the ignition failure phenomenon in a systematic comprehensive detection mode of the gas boiler, and controlling tripping, instruction disappearance and the like in time when the boiler fails by combining with various safety association protection modes, improving the overall operation safety of the gas boiler system and improving the working efficiency.
The foregoing is merely an example of the present application, and the scope of the present application is not limited thereto, and all changes made in the structure according to the present application should be considered as falling within the scope of the present application without departing from the gist of the present application.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the system described above and the related description may refer to the corresponding process in the foregoing method embodiment, which is not repeated here.
It should be noted that, in the system provided in the foregoing embodiment, only the division of the foregoing functional modules is illustrated, in practical application, the foregoing functional allocation may be performed by different functional modules, that is, the modules or steps in the embodiment of the present application are further decomposed or combined, for example, the modules in the foregoing embodiment may be combined into one module, or may be further split into multiple sub-modules, so as to complete all or part of the functions described above. The names of the modules and steps related to the embodiments of the present application are merely for distinguishing the respective modules or steps, and are not to be construed as unduly limiting the present application.
Those of skill in the art will appreciate that the various illustrative modules, method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the program(s) corresponding to the software modules, method steps, may be embodied in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. To clearly illustrate this interchangeability of electronic hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as electronic hardware or software depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not intended to be limiting.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus/apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus/apparatus.
Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will fall within the scope of the present application.
The above is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (10)
1. A gas boiler start-up control method, characterized by comprising:
receiving a starting instruction for starting the gas boiler, and purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the starting instruction;
after purging the ignition gas pipeline of the gas boiler, detecting whether a gas burst test for ignition reaches the standard or not, and igniting the gas boiler according to a detection result; wherein,,
when the detection result of the gas explosion test is up to standard, igniting the gas boiler;
when the detection result of the gas explosion test is that the gas explosion test does not reach the standard, the gas boiler is not ignited, and the gas boiler is locked;
and monitoring the operation state of the gas boiler in real time, wherein the operation state comprises a normal state and a fault state, and when the operation state of the gas boiler is the fault state, tripping control is carried out on the gas boiler.
2. The method for controlling the start of a gas boiler according to claim 1, further comprising, before receiving a start command for starting the gas boiler:
detecting a heat supply unit of the gas boiler and obtaining the starting instruction;
acquiring a real-time difference value set value of the water outlet temperature and the water return temperature of the heat supply unit according to the starting instruction, and updating an original difference value set value of the heat supply unit according to the real-time difference value set value;
and after the original difference value set value of the heat supply unit is updated, sending the starting instruction.
3. The method for controlling the start-up of a gas boiler according to claim 1, further comprising, after the gas boiler is ignited according to the detection result:
the gas boiler is subjected to pressure linkage protection according to a pressure monitoring point arranged at a fire nozzle and a pressure switch arranged at a main pipe;
controlling a gas quick-closing valve of the gas boiler to be opened, controlling a burner air door of the gas boiler to reach a first preset opening value, and controlling a gas regulating valve of the gas boiler to be regulated to a second preset opening value of an ignition position;
controlling an ignition transformer of the gas boiler to open an ignition valve after a first preset time period, and closing the ignition transformer to perform ignition after a second preset time period;
when the ignition transformer is turned off to perform ignition, a first main air valve and a second main air valve of the burner of the gas boiler are controlled to be opened, and after a third preset time period, the burner of the gas boiler is controlled to be turned off;
and controlling an air door of the combustor of the gas boiler to reach a third preset opening value, and controlling a gas regulating valve of the gas boiler to reach a fourth preset opening value.
4. The method for controlling the start of a gas boiler according to claim 1, wherein the steps of receiving a start command for starting the gas boiler, purging a furnace of the gas boiler and purging an ignition gas pipe of the gas boiler according to the start command, and further comprise:
according to the starting instruction, controlling a water supply pump of the gas boiler to supply water to the gas boiler, detecting the liquid level state of the gas boiler in real time, and generating a control signal according to the liquid level state, wherein the liquid level state comprises a normal liquid level state and an abnormal liquid level state;
when the liquid level state is the normal liquid level state, purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the control signal and the starting instruction;
when the liquid level state is the abnormal liquid level state, the starting instruction is controlled to disappear according to the control signal, and the gas boiler is detected.
5. The gas boiler start-up control method according to claim 4, wherein when the liquid level state is the abnormal liquid level state, the start-up instruction is controlled to disappear according to the control signal, and the gas boiler is detected, comprising:
detecting the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve of the gas boiler, and determining whether the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve are abnormal or not.
6. A gas boiler start-up control system applied to the gas boiler start-up control method according to any one of claims 1 to 5, characterized by comprising:
the starting module is used for receiving a starting instruction for starting the gas boiler, purging a hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the starting instruction;
the ignition module is used for detecting whether a gas burst test for ignition reaches the standard or not after the ignition gas pipeline of the gas boiler is purged, and igniting the gas boiler according to a detection result; wherein,,
when the detection result of the gas explosion test is up to standard, igniting the gas boiler;
when the detection result of the gas explosion test is that the gas explosion test does not reach the standard, the gas boiler is not ignited, and the gas boiler is locked;
the protection module is used for monitoring the operation state of the gas boiler in real time, wherein the operation state comprises a normal state and a fault state, and when the operation state of the gas boiler is the fault state, tripping control is carried out on the gas boiler.
7. A gas boiler start-up control system according to claim 6, characterized in that,
the starting module is also used for detecting a heat supply unit of the gas boiler and obtaining the starting instruction;
the starting module is also used for acquiring a real-time difference value set value of the water outlet temperature and the water return temperature of the heat supply unit according to the starting instruction, and updating an original difference value set value of the heat supply unit according to the real-time difference value set value;
the starting module is also used for sending the starting instruction after updating the original difference value set value of the heating unit.
8. A gas boiler start-up control system according to claim 6, characterized in that,
the ignition module is also used for carrying out pressure linkage protection on the gas boiler according to a pressure monitoring point arranged at the fire nozzle and a pressure switch arranged at the main pipe;
the ignition module is also used for controlling the gas quick-closing valve of the gas boiler to be opened, controlling the burner regulating air door of the gas boiler to reach a first preset opening value and controlling the gas regulating valve of the gas boiler to be regulated to a second preset opening value of an ignition position;
the ignition module is also used for controlling an ignition transformer of the gas boiler to open an ignition valve after a first preset time period and closing the ignition transformer to perform ignition after a second preset time period;
the ignition module is also used for controlling the first main air valve and the second main air valve of the burner of the gas boiler to be opened after the ignition transformer is closed for ignition, and controlling the burner of the gas boiler to close the ignition valve after a third preset time period;
the ignition module is also used for controlling the air door of the burner of the gas boiler to reach a third preset opening value and controlling the gas regulating valve of the gas boiler to reach a fourth preset opening value.
9. A gas boiler start-up control system according to claim 6, characterized in that,
the starting module is also used for controlling a water feeding pump of the gas boiler to feed water to the gas boiler according to the starting instruction, detecting the liquid level state of the gas boiler in real time, and generating a control signal according to the liquid level state, wherein the liquid level state comprises a normal liquid level state and an abnormal liquid level state;
the starting module is also used for purging the hearth of the gas boiler and purging an ignition gas pipeline of the gas boiler according to the control signal and the starting instruction when the liquid level state is the normal liquid level state;
and the starting module is also used for controlling the starting instruction to disappear according to the control signal when the liquid level state is the abnormal liquid level state and detecting the gas boiler.
10. A gas boiler start-up control system according to claim 9, characterized in that,
the starting module is also used for detecting the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve of the gas boiler when the liquid level state is the abnormal liquid level state and the gas boiler is detected, and determining whether the working states of the deaerator water inlet regulating valve, the water supply pump and the water supply regulating valve are abnormal or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480001.XA CN116576445A (en) | 2023-04-27 | 2023-04-27 | Method and system for controlling starting of gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480001.XA CN116576445A (en) | 2023-04-27 | 2023-04-27 | Method and system for controlling starting of gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116576445A true CN116576445A (en) | 2023-08-11 |
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ID=87538877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310480001.XA Pending CN116576445A (en) | 2023-04-27 | 2023-04-27 | Method and system for controlling starting of gas boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116576445A (en) |
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2023
- 2023-04-27 CN CN202310480001.XA patent/CN116576445A/en active Pending
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