CN107525059B - Steam boiler fault self-recovery control method and system - Google Patents
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- 238000011084 recovery Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 230000000007 visual effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 230000002159 abnormal effect Effects 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 14
- 230000005856 abnormality Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000036760 body temperature Effects 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
Abstract
The invention discloses a steam boiler fault self-recovery control method and a steam boiler fault self-recovery control system, which are used for solving the problems of steam boiler production loss and potential safety hazard caused by human neglect. The method comprises the following steps: s1, when a steam boiler fault is detected, judging whether only one parameter is faulty, if yes, switching to a standby control mode and sending out yellow light warning; s2, if more than one parameter fails, stopping the machine and giving out a red audible and visual alarm. The steam boiler fault self-recovery method and the steam boiler fault self-recovery system can automatically release fault recovery production when no maintenance is performed, ensure the stability and the safety of production, improve the fault recovery efficiency and effectively avoid the serious loss caused by faults. The system also comprises multiple pressure and temperature detection protection, can automatically and continuously run stably under the condition of meeting safety, and avoids production loss and potential safety hazard caused by human neglect.
Description
Technical Field
The invention relates to the technical field of steam boilers, in particular to a fault self-recovery control method and system for a steam boiler.
Background
The boiler is an energy conversion device, the energy input to the boiler is in the forms of chemical energy, electric energy, heat energy of high-temperature flue gas and the like in the fuel, and steam, high-temperature water or an organic heat carrier with certain heat energy is output outwards after boiler conversion.
The boiler is a water container heated on fire, the boiler is a place where fuel is burned, and the boiler comprises two parts of a boiler and a boiler.
The hot water or steam generated in the boiler can directly provide heat energy required by industrial production and people living, and can also be converted into mechanical energy through a steam power device or converted into electric energy through a generator.
The boiler for supplying hot water is called a hot water boiler, and is mainly used for life and has a small amount of application in industrial production. Steam generating boilers are called steam boilers, often referred to simply as boilers, and are used in many thermal power stations, ships, locomotives and industrial and mining enterprises.
The existing steam boiler needs staff to monitor, and when faults occur, production loss and safety accidents can be caused by negligence of staff.
The patent publication No. CN105627355A provides a method and a system for diagnosing combustion faults of a power station boiler, wherein the system for diagnosing combustion faults of the power station boiler comprises the following components: an overfire air burner, a plurality of groups of main burners, a plurality of burner state monitoring devices and a plurality of hearth outlet combustion state detection devices; the over-fire air burners and each group of main burners are respectively arranged on four corners of the hearth; the burner state monitoring devices are arranged on a hearth at a set position below a group of main burners at the lowest end, are dispersed around four main burners in the group of main burners at the lowest end and are used for measuring the section temperature and the section oxygen content at the position; the combustion state detection devices of the plurality of hearth outlets are arranged on the hearth at the hearth outlet in a dispersing mode and are used for measuring the section temperature and section oxygen content of the hearth outlet. The invention can monitor and record the state parameters in the boiler under the typical working condition or the set working condition of the boiler, and is convenient for related personnel such as production, overhaul and the like to know the working state of the boiler equipment at any time. However, the invention can not timely perform fault self-recovery and timely alarm, and can cause production loss due to negligence of staff.
Disclosure of Invention
The invention aims to provide a method and a system for controlling the fault self-recovery of a steam boiler, which are used for solving the problems of production loss and potential safety hazard of the steam boiler caused by human neglect.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a steam boiler fault self-recovery control method comprises the following steps:
s1, when a steam boiler fault is detected, judging whether only one parameter is faulty, if yes, switching to a standby control mode and sending out yellow light warning;
s2, if more than one parameter fails, stopping the machine and giving out a red audible and visual alarm.
Further, the method further comprises the steps of:
when the parameter abnormality of the steam boiler is detected, judging whether only one parameter is abnormal, if so, immediately stopping the steam boiler and giving out yellow lamplight warning;
the residual water in the steam boiler is automatically decompressed and drained, and then the water is replenished and started again;
judging whether the parameters of the steam boiler in the first preset times are restored to be in a preset value range or not, and if so, continuing to operate; otherwise, the process proceeds to step S1.
Further, the method further comprises the steps of:
when detecting that more than one parameter of the steam boiler is abnormal, immediately stopping the steam boiler and giving out yellow lamplight warning;
the residual water in the steam boiler is automatically decompressed and drained, and then the water is replenished and started again;
judging whether the parameters of the steam boiler in the first preset times are restored to be in a preset value range or not, and if so, continuing to operate; otherwise, go to step S2.
Further, the method further comprises the steps of:
if the steam boiler fault is detected to be uncertain, a shutdown instruction is sent out;
judging whether the fault is relieved within the second preset times, and if not, immediately giving out a red acousto-optic alarm.
Further, the parameters include: and (3) measuring the temperature of a steam outlet, detecting the steam outlet pressure, detecting the temperature of a furnace body and controlling the liquid level.
A steam boiler fault self-recovery control system, comprising:
the single fault module is used for judging whether only one parameter has a fault when detecting the fault of the steam boiler, if so, switching to a standby control mode and sending out yellow light warning;
and the multi-fault module is used for stopping the machine and sending out red acousto-optic warning if more than one parameter fails.
Further, the method further comprises the following steps:
the first detection module is used for judging whether only one parameter is abnormal when detecting that the parameters of the steam boiler are abnormal, if so, immediately stopping the steam boiler and giving out yellow light warning;
the first starting module is used for automatically decompressing and draining residual water in the steam boiler, replenishing water again and starting again;
the first judging module is used for judging whether the parameters of the steam boiler in the first preset times are restored to be within a preset value range or not, and if so, continuing to operate; otherwise, switching the standby control mode and giving out yellow light warning.
Further, the method further comprises the following steps:
the second detection module is used for immediately stopping the steam boiler and sending out yellow light warning when detecting that more than one parameter of the steam boiler is abnormal;
the second starting module is used for automatically decompressing and draining residual water in the steam boiler, and then replenishing water again and starting the steam boiler again;
the second judging module is used for judging whether the parameters of the steam boiler in the first preset times are restored to be in a preset value range or not, and if so, continuing to operate; otherwise, stopping the machine and giving out a red audible and visual alarm.
Further, the method further comprises the following steps:
the stopping module is used for sending a stopping instruction if the steam boiler fault is detected to be uncertain;
and the alarm module is used for judging whether the fault is relieved within the second preset times, and if not, immediately sending out a red audible and visual alarm.
Compared with the traditional technology, the invention has the following advantages:
1. the steam boiler fault self-recovery method and the steam boiler fault self-recovery system can automatically release fault recovery production when no maintenance is performed, ensure the stability and the safety of production, improve the fault recovery efficiency and effectively avoid the serious loss caused by faults.
2. The steam pot fault self-recovery method and the steam pot fault self-recovery system comprise multiple pressure and temperature detection protection, can automatically and continuously run in a stable state under the condition of meeting safety, and avoid production loss and potential safety hazard caused by human neglect.
Drawings
FIG. 1 is a flow chart of a steam boiler fault self-recovery control method provided in an embodiment I;
FIG. 2 is a flow chart of a method for controlling the fault self-recovery of a steam boiler according to the second embodiment;
FIG. 3 is a flow chart of a method for controlling the fault self-recovery of a steam boiler according to a third embodiment;
FIG. 4 is a schematic diagram of a fault self-recovery control system for a steam boiler according to a fourth embodiment;
FIG. 5 is a schematic diagram of a failure self-recovery control system for a steam boiler according to a fifth embodiment;
fig. 6 is a structural diagram of a fault self-recovery control system for a steam boiler according to a sixth embodiment.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
The embodiment provides a steam boiler fault self-recovery control method, as shown in fig. 1, comprising the following steps:
s11: when detecting the steam boiler fault, judging whether only one parameter has the fault, if so, switching to a standby control mode and sending out yellow light warning;
s12: if more than one parameter fails, the machine is stopped and a red audible and visual alarm is sent out.
The steam boiler provided by the embodiment executes corresponding detection, repair and fault recovery processes according to different fault reasons, and all the information such as fault prompting, removing and maintaining is highlighted on the touch screen.
Specifically, when the steam boiler detects a fault, if the fault is recoverable or the standby mode fault can be started, if only one parameter is faulty, other operation modes are immediately switched to ensure that the equipment is not interrupted, and meanwhile, yellow light warning is sent to remind man-made interference and maintenance; and immediately stopping the machine and giving out a red audible and visual alarm when two or more faults are detected simultaneously.
In this embodiment, the parameters include: and (3) measuring the temperature of a steam outlet, detecting the steam outlet pressure, detecting the temperature of a furnace body and controlling the liquid level.
Specifically, conditions required by normal operation of the boiler comprise steam outlet temperature measurement, steam outlet pressure detection, furnace body temperature detection and liquid level control, and during normal operation, the four detection values are closely related to each other and are in one-to-one correspondence according to a certain relation, and abnormal value ranges are respectively set according to equipment characteristics and national regulations; in addition to the above four items, other hard safety protection measures such as a safety valve are provided.
In this embodiment, when the control system detects that the temperature of the furnace body is abnormal, it is first determined whether three parameters including the steam temperature, the steam outlet pressure and the liquid level in the furnace are normal:
a. immediately stopping the machine and lighting the yellow lamp when all three parameters are normal, and simultaneously automatically switching to a standby temperature measuring point, and continuously operating and lighting the yellow lamp for reminding if the detected parameters are normal;
b. if the alarm is still abnormal, the alarm is stopped immediately and a red audible and visual alarm is sent out.
The method provided by the embodiment comprises multiple pressure and temperature detection protection, and avoids production loss and potential safety hazard caused by human negligence.
Example two
The embodiment provides a steam boiler fault self-recovery control method, as shown in fig. 2, comprising the following steps:
s21: when detecting that the parameters of the steam boiler are abnormal, judging whether only one parameter is abnormal, if so, immediately stopping the steam boiler and giving out yellow lamplight warning;
s22: the residual water in the steam boiler is discharged after automatic pressure relief, and then the water is replenished and started again;
s23: judging whether the parameters of the steam boiler in the first preset times are restored to be within a preset value range, if so, continuing to operate; otherwise, go to step S24;
s24: switching to a standby control mode and sending out yellow light warning;
s25: when detecting that more than one parameter of the steam boiler is abnormal, immediately stopping the steam boiler and giving out yellow lamplight warning;
s26: the residual water in the steam boiler is discharged after automatic pressure relief, and then the water is replenished and started again;
s27: judging whether the parameters of the steam boiler in the first preset times are restored to be within a preset value range, if so, continuing to operate; otherwise, go to step S28;
s28: shut down and give out a red audible and visual alarm.
The present embodiment is different from the first embodiment in that it further includes steps S21 to S23, and steps S25 to S27.
Specifically, the fault self-recovery provided in this embodiment mainly includes three cases:
case one:
when the control system detects that the temperature measurement of the steam outlet is abnormal, firstly judging whether three parameters of the temperature of the furnace body, the steam outlet pressure and the liquid level in the furnace are normal or not:
a. when the three parameters are normal, immediately stopping the machine and turning on the yellow lamp, simultaneously automatically decompressing and discharging the residual water in the furnace, then replenishing water again for restarting, and if the fault is recovered, continuing to operate; if the failure is still detected after three times of cleaning, the damage of the temperature measuring hardware of the steam outlet can be judged, and at the moment, the system is directly switched into a pressure control mode to continue to operate and turn on a yellow lamp for warning.
b. When one or two of the three parameters are failed, immediately stopping the machine and lighting a yellow lamp, simultaneously automatically decompressing and discharging residual water in the furnace, then replenishing water again and starting the machine again, if the failure is recovered, continuing to operate, and if the failure is still three times later, immediately stopping the machine and sending out a red audible and visual alarm.
And a second case:
when the control system detects that the steam outlet pressure is abnormal, firstly judging whether three parameters of the furnace body temperature, the steam outlet temperature and the liquid level in the furnace are normal or not:
a. when the three parameters are normal, immediately stopping the machine and turning on the yellow lamp, simultaneously automatically decompressing and discharging the residual water in the furnace, then replenishing water again for restarting, and if the fault is recovered, continuing to operate; if the failure after three times of cleaning still exists, the failure can be judged to be the failure of the steam outlet pressure detection hardware, and at the moment, the system is directly switched into a temperature control mode to continue to operate and turn on a yellow lamp for warning.
b. When one or two of the three parameters simultaneously fail, the machine is immediately stopped and a yellow lamp is turned on, meanwhile, the residual water in the furnace is automatically discharged in a decompression mode, then the water is replenished again for restarting, if the failure is recovered, the machine continues to operate, and if the failure is still three times later, the machine is immediately stopped and a red audible and visual alarm is sent.
Case three
When the control system detects that the liquid level in the furnace is abnormal, firstly judging whether three parameters of steam temperature, steam outlet pressure and furnace body temperature are normal or not:
a. when the three parameters are normal, immediately stopping the machine and turning on the yellow lamp, simultaneously automatically decompressing and discharging the residual water in the furnace, then replenishing water again for restarting, and if the fault is recovered, continuing to operate; if the failure is still after three times of cleaning, the failure of the liquid level detection system can be judged to be unable to be recovered, and the system is directly switched into the standby liquid level detection system to continue to operate and turn on a yellow lamp for warning.
b. When one or two of the three parameters are simultaneously failed, immediately stopping the operation and lighting a yellow lamp, simultaneously automatically decompressing and discharging residual water in the furnace, then replenishing water again and restarting the operation again, if the failure is recovered, switching to a standby liquid level detection system for restarting if the failure is still three times later, if the failure is completely recovered, continuing to operate, and if the failure is still, immediately stopping the operation and sending out a red audible and visual alarm.
Unlike the case when the temperature abnormality of the furnace body is detected in the first embodiment, when the temperature measurement of the steam outlet, the detection of the steam outlet pressure, or the abnormality of the liquid control of the steam boiler is detected, there is a process of restarting, specifically:
firstly judging whether only one item is abnormal, if so, immediately stopping the machine and giving out yellow light warning; and then automatically decompressing and draining the residual water in the steam boiler, and then replenishing water again for restarting. Judging whether the parameters of the steam boiler in the preset times are restored to be in the preset value range, and if so, continuing to operate. Otherwise, a yellow light warning is sent out.
If more than one parameter is abnormal, immediately stopping the boiler and giving out yellow light warning, automatically decompressing and draining the residual water in the steam boiler, and then replenishing water and restarting the boiler. Judging whether the parameters of the steam boiler in the preset times are restored to be in a preset value range, if so, continuing to operate; otherwise, stopping the machine and giving out a red audible and visual alarm.
The method provided by the embodiment can automatically release the fault recovery production when no maintenance is performed, ensures the stability and the safety of the production, improves the fault recovery efficiency and effectively avoids the serious loss caused by faults.
Example III
The embodiment provides a steam boiler fault self-recovery control method, as shown in fig. 3, comprising the following steps:
s31: when detecting the steam boiler fault, judging whether only one parameter has the fault, if so, switching to a standby control mode and sending out yellow light warning;
s32: if more than one parameter fails, stopping the machine and sending out a red audible and visual alarm;
s33: if the fault of the steam boiler is detected to be uncertain, a shutdown instruction is sent out;
s34: judging whether the fault is relieved within the second preset times, and if not, immediately giving out a red acousto-optic alarm.
The first difference from the embodiment is that the present embodiment further includes step S33 and step S34.
Specifically, if the failure of the steam boiler is detected to be uncertain, a shutdown instruction is sent out first, and if the failure which cannot be recovered after failure is relieved for a plurality of times, a red acousto-optic alarm is sent out immediately to remind the man-made interference and maintenance.
Example IV
The present embodiment provides a steam boiler fault self-recovery control system, as shown in fig. 4, including:
the single fault module 41 is configured to determine whether only one parameter has failed when a steam boiler fault is detected, and if so, switch to a standby control mode and send out a yellow light warning;
the multiple fault module 42 is configured to shut down and issue a red audible and visual alarm if more than one parameter fails.
Specifically, when the steam boiler detects a fault, if the fault is recoverable or the standby mode fault can be started, if only one parameter is faulty, the single fault module 41 immediately switches other operation modes to ensure that the equipment is not interrupted, and meanwhile, yellow light warning is sent to remind man-made interference and maintenance; the multi-fault module 42 immediately shuts down and sounds a red audible and visual alarm when two or more faults are detected simultaneously.
In this embodiment, the parameters include: and (3) measuring the temperature of a steam outlet, detecting the steam outlet pressure, detecting the temperature of a furnace body and controlling the liquid level.
The system provided by the embodiment comprises multiple pressure and temperature detection protection, so that production loss and potential safety hazard caused by human negligence are avoided.
Example five
The present embodiment provides a steam boiler fault self-recovery control system, as shown in fig. 5, including:
the first detection module 51 is configured to determine whether only one parameter is abnormal when detecting that the parameters of the steam boiler are abnormal, and if so, immediately stop the steam boiler and send out yellow light warning;
the first starting module 52 is used for automatically decompressing and draining the residual water in the steam boiler, and then replenishing water again and starting again;
a first judging module 53, configured to judge whether the parameters of the steam boiler within the first preset times are restored within a preset value range, and if yes, continue to operate; otherwise, go to step S24;
the single fault module 54 is used for switching to a standby control mode and sending out yellow light warning;
the second detection module 55 is used for immediately stopping the machine and giving out yellow light warning when detecting that more than one parameter of the steam boiler is abnormal;
the second starting module 56 is used for automatically decompressing and draining the residual water in the steam boiler, and then replenishing water again and starting again;
a second judging module 57, configured to judge whether the parameters of the steam boiler in the first preset times are restored to be within a preset value range, and if so, continue to operate; otherwise, go to step S28;
the multiple fault module 58 is used for stopping the machine and giving out a red audible and visual alarm.
The fourth difference between the present embodiment and the fourth embodiment is that the present embodiment further includes a first detection module 51, a first start module 52, a first determination module 53, a second detection module 55, a second start module 56, and a second determination module 57.
In particular, the method comprises the steps of,
when the first detection module 51 detects that the parameters of the steam boiler are abnormal, judging whether only one item of the parameters are abnormal or not, if so, immediately stopping the machine and giving out yellow light warning; the first start-up module 52 automatically decompresses and drains the remaining water in the steam boiler, and then re-fills the water for start-up again. The first judging module 53 judges whether the parameters of the steam boiler in the preset times are restored to be within the preset value range, and if so, the operation is continued. Otherwise, a yellow light warning is sent out.
If the second detection module 55 detects that more than one parameter is abnormal, the machine is immediately stopped and yellow light warning is given out, and the second starting module 56 automatically decompresses, drains the residual water in the steam boiler, and then is filled with water again and is started again. The second judging module 57 judges whether the parameters of the steam boiler in the preset times are restored to be within the preset value range, if so, the operation is continued; otherwise, stopping the machine and giving out a red audible and visual alarm.
The system provided by the embodiment can automatically release the fault recovery production when no maintenance is performed, so that the stability and the safety of the production are ensured, the fault recovery efficiency is improved, and meanwhile, the serious loss caused by faults is effectively avoided.
Example six
The present embodiment provides a steam boiler fault self-recovery control system, as shown in fig. 6, including:
the single fault module 61 is configured to determine whether only one parameter has failed when a steam boiler fault is detected, and if so, switch to a standby control mode and send out a yellow light warning;
a multi-fault module 62 for stopping the machine and giving out a red audible and visual alarm if more than one parameter fails;
a stopping module 63, configured to issue a stopping instruction if the steam boiler fault is detected to be uncertain;
the alarm module 64 is configured to determine whether the fault is released within the second preset number of times, and if not, immediately send out a red audible and visual alarm.
The fourth embodiment is different from the fourth embodiment in that the present embodiment further includes a shutdown module 63 and an alarm module 64.
Specifically, if the failure of the steam boiler is detected to be uncertain, the shutdown module 63 first sends out a shutdown command, and if the failure which cannot be recovered after a plurality of failures are relieved, the alarm module 64 immediately sends out a red audible and visual alarm to remind the personnel of the intervention and maintenance.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The fault self-recovery control method for the steam boiler is characterized by comprising the following steps of:
s1, when a steam boiler fault is detected, judging whether only one parameter is faulty, if yes, switching to a standby control mode and sending out yellow light warning;
s2, if more than one parameter fails, stopping the machine and giving out a red audible and visual alarm;
when the parameter abnormality of the steam boiler is detected, judging whether only one parameter is abnormal, if so, immediately stopping the steam boiler and giving out yellow lamplight warning;
the residual water in the steam boiler is automatically decompressed and drained, and then the water is replenished and started again;
judging whether the parameters of the steam boiler in the first preset times are restored to be in a preset value range or not, and if so, continuing to operate; otherwise, go to step S1;
when detecting that more than one parameter of the steam boiler is abnormal, immediately stopping the steam boiler and giving out yellow lamplight warning;
the residual water in the steam boiler is automatically decompressed and drained, and then the water is replenished and started again;
judging whether the parameters of the steam boiler in the first preset times are restored to be in a preset value range or not, and if so, continuing to operate; otherwise, go to step S2.
2. The steam boiler fault self-recovery control method according to claim 1, further comprising the steps of:
if the steam boiler fault is detected to be uncertain, a shutdown instruction is sent out;
judging whether the fault is relieved within the second preset times, and if not, immediately giving out a red acousto-optic alarm.
3. The steam boiler fault self-recovery control method according to claim 1, wherein the parameters include: and (3) measuring the temperature of a steam outlet, detecting the steam outlet pressure, detecting the temperature of a furnace body and controlling the liquid level.
4. A steam boiler fault self-recovery control system, comprising:
the single fault module is used for judging whether only one parameter has a fault when detecting the fault of the steam boiler, if so, switching to a standby control mode and sending out yellow light warning;
the multi-fault module is used for stopping the machine and sending out red acousto-optic warning if more than one parameter fails;
the first detection module is used for judging whether only one parameter is abnormal when detecting that the parameters of the steam boiler are abnormal, if so, immediately stopping the steam boiler and giving out yellow light warning;
the first starting module is used for automatically decompressing and draining residual water in the steam boiler, replenishing water again and starting again;
the first judging module is used for judging whether the parameters of the steam boiler in the first preset times are restored to be within a preset value range or not, and if so, continuing to operate; otherwise, switching the standby control mode and giving out yellow light warning;
the second detection module is used for immediately stopping the steam boiler and sending out yellow light warning when detecting that more than one parameter of the steam boiler is abnormal;
the second starting module is used for automatically decompressing and draining residual water in the steam boiler, and then replenishing water again and starting the steam boiler again;
the second judging module is used for judging whether the parameters of the steam boiler in the first preset times are restored to be in a preset value range or not, and if so, continuing to operate; otherwise, stopping the machine and giving out a red acousto-optic alarm;
the parameters include: and (3) measuring the temperature of a steam outlet, detecting the steam outlet pressure, detecting the temperature of a furnace body and controlling the liquid level.
5. The steam boiler fault self-recovery control system of claim 4, further comprising:
the stopping module is used for sending a stopping instruction if the steam boiler fault is detected to be uncertain;
and the alarm module is used for judging whether the fault is relieved within the second preset times, and if not, immediately sending out a red audible and visual alarm.
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