Control method and device for stone gas force conveying system based on mode judgment

Abstract

The disclosure provides a stone coal gas force conveying system control method and device based on mode judgment, and relates to the automatic control technical field of thermal power plants. The method comprises the following steps: acquiring a first operation mode to be changed and a second operation mode currently operated of a stone coal gas force conveying system; determining a target mode to be preferentially executed from the first operation mode and the second operation mode; determining a target coal mill corresponding to the target mode from a plurality of coal mills, and discharging the stone coal of the target coal mill into a slag bin. By determining the target mode to be executed from the first operation mode to be changed and the second operation mode currently operated, it can be determined whether the condition for mode conversion is met, and the target coal mill to be executed can be accurately determined. Therefore, the effectiveness and stability of the adjustment of the coal mill can be improved, and the probability of accidents caused by subjective judgment of personnel can be reduced compared with the prior art.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automatic control of thermal power plants, and in particular to a stone coal pneumatic conveying system control method and device based on mode judgment. BACKGROUND

[0002] As the core of the thermal power plant unit, the control system is developing towards intelligent, standardized and modularization. Unlike the early manual control, the production process and flow of thermal power plants are now mainly automatically controlled by DCS or PLC systems. The stone coal pneumatic conveying system is connected to the coal mill, and the fallen stone coal is regularly discharged into the bunker through the control of the fan and valve and other equipment.

[0003] Compared with important equipment such as boilers, steam turbines and generators, the stone coal pneumatic conveying system is connected to the control system with the development of automation, but the logic is still mainly based on the subjective judgment of the operator, and the program control and automatic judgment are auxiliary. When the stone coal pneumatic conveying system is connected to the mill air duct, the misoperation of the fan may cause equipment damage or accidents, and the untimely execution of the slag removal program by the operator may also cause system blockage. Therefore, the rationality of the auxiliary system control logic and the degree of automation directly affect the investment of human cost and the safety of the unit operation. SUMMARY

[0004] The present disclosure aims to at least partially solve one of the technical problems in the related art.

[0005] To this end, one object of the present disclosure is to provide a stone coal pneumatic conveying system control method based on mode judgment.

[0006] A second object of the present disclosure is to provide a stone coal pneumatic conveying system control device based on mode judgment.

[0007] A third object of the present disclosure is to provide an electronic device.

[0008] A fourth object of the present disclosure is to provide a non-transitory computer readable storage medium.

[0009] A fifth object of the present disclosure is to provide a computer program product.

[0010] To achieve the above objects, the first aspect of the present disclosure provides a stone coal pneumatic conveying system control method based on mode judgment, comprising: obtaining a first running mode needing to be changed and a second running mode currently running of a stone coal pneumatic conveying system; determining a target mode to be executed preferentially from the first running mode and the second running mode; determining a target coal mill corresponding to the target mode from a plurality of coal mills, and discharging the stone coal of the target coal mill into a slag bunker.

[0011] According to one of the embodiments of the present disclosure, the target mode is determined from the first operation mode and the second operation mode, and the target mode is determined as the first operation mode when the first operation mode is a manual mode and the second operation mode is an alarm mode or a cycle mode.

[0012] According to one of the embodiments of the present disclosure, the target mill corresponding to the target mode is determined from the plurality of mills, and the stone coal of the target mill is discharged into the bunker, which comprises: obtaining the target mill in the first operation mode and the operation sequence of the target mill; and discharging the stone coal of the target mill into the bunker according to the operation sequence.

[0013] According to one of the embodiments of the present disclosure, the target mode is determined from the first operation mode and the second operation mode, and the target mode is determined as the first operation mode when the first operation mode is an alarm mode and the second operation mode is a cycle mode.

[0014] According to one of the embodiments of the present disclosure, the target mill corresponding to the target mode is determined from the plurality of mills, and the stone coal of the target mill is discharged into the bunker, which comprises: determining the mill that alarms as the target mill, and obtaining the alarm time of the target mill; sorting the target mill according to the alarm time from long to short; and discharging the stone coal of the target mill into the bunker according to the sorting.

[0015] According to one of the embodiments of the present disclosure, the method further comprises: switching the stone coal pneumatic conveying system to the cycle mode after the target mode is executed; obtaining the grinding time of all the mills, and sorting all the mills according to the grinding time from long to short; and discharging the stone coal of the mills into the bunker according to the sorting.

[0016] According to one of the embodiments of the present disclosure, the method further comprises: determining whether the corresponding mill has a running condition before the stone coal is discharged into the bunker, wherein the running condition is that the valve between the corresponding mill and the coal hopper is open, the valve between the coal hopper and the fan of all the mills is closed, the negative pressure fan is closed, and the program control of the mills other than the corresponding mill is not running; and discharging the stone coal of the corresponding mill into the bunker in response to the running condition.

[0017] To achieve the above object, the second aspect of the present disclosure provides a stone coal pneumatic conveying system control device based on mode determination, comprising: an acquisition module configured to acquire a first operation mode to be changed and a second operation mode currently running of a stone coal pneumatic conveying system; a determination module configured to determine a target mode to be executed preferentially from the first operation mode and the second operation mode; and a work module configured to determine a target mill corresponding to the target mode from a plurality of mills and discharge stone coal of the target mill into a slag bin.

[0018] To achieve the above object, the third aspect of the present disclosure provides an electronic device, comprising: at least one processor; and a memory connected with the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to implement the stone coal pneumatic conveying system control method based on mode determination as described in the first aspect of the present disclosure.

[0019] To achieve the above object, the fourth aspect of the present disclosure provides a non-transitory computer readable storage medium storing computer instructions, wherein the computer instructions are used to implement the stone coal pneumatic conveying system control method based on mode determination as described in the first aspect of the present disclosure.

[0020] To achieve the above object, the fifth aspect of the present disclosure provides a computer program product comprising a computer program, wherein the computer program is used to implement the stone coal pneumatic conveying system control method based on mode determination as described in the first aspect of the present disclosure when executed by a processor.

[0021] By determining the target mode to be executed according to the first operation mode to be changed and the second operation mode currently running, it can be determined whether the condition for mode conversion is met, and the target mill to be executed can be accurately determined, so as to improve the effectiveness and stability of the adjustment of the mill, and compared with the prior art, the probability of accidents caused by subjective judgment of personnel can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of a stone coal pneumatic conveying system control method based on mode determination according to an embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of another stone coal pneumatic conveying system control method based on mode determination according to an embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of another stone coal pneumatic conveying system control method based on mode determination according to an embodiment of the present disclosure;

[0025] Figure 4 is a schematic diagram of a mode judgment based stone gas force conveying system control device according to an embodiment of the present disclosure;

[0026] Figure 5 is a schematic diagram of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0028] Figure 1 is a schematic diagram of a mode judgment based stone gas force conveying system control method according to an embodiment of the present disclosure, as shown in the figure, the mode judgment based stone gas force conveying system control method comprises the following steps: Figure 1

[0029] S101, obtaining a first running mode to be switched and a second running mode currently running of a stone gas force conveying system.

[0030] The mode judgment based stone gas force conveying system control method of the embodiments of the present disclosure can be applied to the scene of automatic control of a stone gas force conveying system in a thermal power plant, and the execution subject of the mode judgment based stone gas force conveying system control of the embodiments of the present disclosure can be the mode judgment based stone gas force conveying system control device of the embodiments of the present disclosure, which can be arranged on an electronic device.

[0031] In the embodiments of the present disclosure, the stone gas force conveying system comprises three running modes of a cycle mode, an alarm mode and a manual mode, and the on-off state of the three modes affects the response of the system to different situations.

[0032] The manual mode is a mode started only by an operator, and is used for switching when an operator or an operator performs on-site control.

[0033] The alarm mode is switched when the waste of the coal mill in the stone gas force conveying system reaches an alarm quantity.

[0034] The cycle mode is a working mode when the stone gas force conveying system works normally.

[0035] It should be noted that the first running mode and the second running mode are different running modes.

[0036] ​S102, determine a target mode with priority from the first operation mode and the second operation mode.

[0037] In the embodiments of the present disclosure, the first operation mode and the second operation mode have different priorities, so that when the first operation mode that needs to be changed is obtained, it is determined whether to execute the first operation mode according to the priorities of the first operation mode and the second operation mode.

[0038] In the embodiments of the present disclosure, the running priorities of the first operation mode and the second operation mode can be determined by the priorities of the cycle mode, the alarm mode and the manual mode. The priorities are set in advance and can be changed according to actual design needs, which are not limited here.

[0039] S103, determine a target mill corresponding to the target mode from a plurality of mills, and discharge the stone coal of the target mill into a slag bin.

[0040] In the embodiments of the present disclosure, different mills correspond to different identifiers, so that the corresponding mill can be determined by distinguishing the identifier.

[0041] It should be noted that the way of determining the target mill by different target modes can be different, which is not limited here. For example, the target mill of the cycle mode can be determined based on the grinding time, the target mill of the alarm mode can be determined according to the alarm time, and the target mill of the manual mode can be determined according to the instruction input by the personnel.

[0042] In the embodiments of the present disclosure, first, the first operation mode that needs to be changed and the second operation mode that is currently running of the stone coal pneumatic conveying system are obtained, then a target mode with priority is determined from the first operation mode and the second operation mode, and finally a target mill corresponding to the target mode is determined from a plurality of mills, and the stone coal of the target mill is discharged into a slag bin. Therefore, by determining the target mode to be executed from the first operation mode that needs to be changed and the second operation mode that is currently running, it can be determined whether the condition for mode conversion is met, and the target mill to be executed can be accurately determined. Therefore, the effectiveness and stability of the mill adjustment can be improved, and compared with the prior art, the probability of accidents caused by subjective judgment of personnel can be reduced.

[0043] In the above embodiments, the target mill corresponding to the target mode is determined from a plurality of mills, and the stone coal of the target mill is discharged into a slag bin, which can also be achieved by Figure 2 Further explanation, Figure 2 is another schematic diagram of a stone coal pneumatic conveying system control method based on mode judgment according to an embodiment of the present disclosure, which comprises:

[0044] S201, when the first operation mode is the manual mode, and the second operation mode is the alarm mode or the cycle mode, determining that the target mode is the first operation mode.

[0045] It should be noted that the priority of the manual mode is higher than that of the alarm mode or the cycle mode, and thus, when the first operation mode is the manual mode, the target mode is the first operation mode.

[0046] S202, obtaining the target coal mill in the first operation mode and the operation sequence of the target coal mill.

[0047] In the embodiment of the present disclosure, the target coal mill and the operation sequence in the manual mode are manually input or selected.

[0048] S203, according to the operation sequence, the stone coal of the target coal mill is discharged into the slag bin.

[0049] In the embodiment of the present disclosure, when the first operation mode is the manual mode, and the second operation mode is the alarm mode or the cycle mode, the target mode is determined to be the first operation mode, then the target coal mill in the first operation mode is obtained, and the operation sequence of the target coal mill is obtained, and finally, according to the operation sequence, the stone coal of the target coal mill is discharged into the slag bin. Thus, manual intervention control of the stone coal pneumatic conveying system can be realized, and the probability of accidents can be reduced in necessary or emergency situations.

[0050] In the above embodiment, the target coal mill corresponding to the target mode is determined from a plurality of coal mills, and the stone coal of the target coal mill is discharged into the slag bin, which can also be achieved by Figure 3 Further explanation, Figure 3 is another mode-based control method of the stone coal pneumatic conveying system according to an embodiment of the present disclosure, which comprises:

[0051] S301, when the first operation mode is the alarm mode, and the second operation mode is the cycle mode, determining that the target mode is the first operation mode.

[0052] In the embodiment of the present disclosure, the priority of the alarm mode is higher than that of the cycle mode, and thus, when the first operation mode is the alarm mode, and the second operation mode is the cycle mode, the target mode is the first operation mode with higher priority.

[0053] S302, determining the coal mill that alarms as the target coal mill, and obtaining the alarm time of the target coal mill.

[0054] In the embodiment of the present disclosure, in the alarm mode, the target coal mill is the coal mill that alarms. It should be noted that the alarm of the embodiment of the present disclosure is to alarm the material level that reaches the alarm, which can be set in advance and can be changed according to the actual design needs, which is not limited here.

[0055] It should be noted that the alarm time can be timed and uploaded by the sensor.

[0056] S303, the target mill is sorted according to the alarm time from long to short.

[0057] S304, according to the sorting, the stone coal of the target mill is discharged into the slag bin.

[0058] In the embodiment of the present disclosure, the first running mode is the alarm mode, the second running mode is the cycle mode, the target mode is determined as the first running mode, then the mill that alarms is determined as the target mill, the alarm time of the target mill is obtained, then the target mill is sorted according to the alarm time from long to short, finally, according to the sorting, the stone coal of the target mill is discharged into the slag bin. Thus, in the case of alarm, the mill that alarms can be processed preferentially, so as to prevent safety accidents caused by overfilling of the slag bin of the mill that alarms.

[0059] In the above embodiment, after the target mode is executed, the stone coal pneumatic conveying system is switched to the cycle mode, the grinding time of all mills is obtained, and all mills are sorted according to the grinding time from long to short, and then the stone coal of the mill is discharged into the slag bin according to the sorting.

[0060] It should be noted that the grinding time can be timed and obtained by the sensor arranged on the mill.

[0061] In the embodiment of the present disclosure, before the stone coal is discharged into the slag bin, it is determined whether the corresponding mill has a running condition, the running condition is that the valve between the corresponding mill and the coal hopper is opened, and the valve between the coal hopper of all mills and the fan is closed, and the negative pressure fan is closed, and the program control of the mill other than the corresponding mill is not running, and in response to the running condition, the stone coal of the corresponding mill is discharged into the slag bin.

[0062] Corresponding to the stone coal pneumatic conveying system control method based on mode judgment provided in the above several embodiments, one embodiment of the present disclosure also provides a stone coal pneumatic conveying system control device based on mode judgment. Since the stone coal pneumatic conveying system control device based on mode judgment provided in the embodiment of the present disclosure corresponds to the stone coal pneumatic conveying system control method based on mode judgment provided in the above several embodiments, the implementation modes of the above stone coal pneumatic conveying system control method based on mode judgment are also applicable to the stone coal pneumatic conveying system control device based on mode judgment provided in the embodiment of the present disclosure, which will not be described in detail in the following embodiments.

[0063] Figure 4is a schematic view of a mode judgment based control device of a stone gas force conveying system according to an embodiment of the present disclosure, as shown in FIG. 4. The mode judgment based control device 400 of the stone gas force conveying system includes an acquisition module 410, a determination module 420, and an operation module 430.

[0064] The acquisition module 410 is configured to acquire a first operation mode to be switched and a second operation mode currently running of the stone gas force conveying system.

[0065] The determination module 420 is configured to determine a target mode to be executed preferentially from the first operation mode and the second operation mode.

[0066] The operation module 430 is configured to determine a target mill corresponding to the target mode from a plurality of mills and discharge stone coal of the target mill into a bunker.

[0067] In an embodiment of the present disclosure, the determination module 420 is further configured to determine the target mode as the first operation mode when the first operation mode is a manual mode and the second operation mode is an alarm mode or a cycle mode.

[0068] In an embodiment of the present disclosure, the operation module 430 is further configured to acquire the target mill in the first operation mode and an operation sequence of the target mill, and discharge the stone coal of the target mill into the bunker according to the operation sequence.

[0069] In an embodiment of the present disclosure, the determination module 420 is further configured to determine the target mode as the first operation mode when the first operation mode is an alarm mode and the second operation mode is a cycle mode.

[0070] In an embodiment of the present disclosure, the operation module 430 is further configured to determine a mill performing an alarm as the target mill, acquire an alarm time of the target mill, sort the target mill according to the alarm time from long to short, and discharge the stone coal of the target mill into the bunker according to the sorting.

[0071] In an embodiment of the present disclosure, the operation module 430 is further configured to switch the stone gas force conveying system to the cycle mode when the target mode is executed, acquire a grinding time of all the mills, sort all the mills according to the grinding time from long to short, and discharge the stone coal of the mills into the bunker according to the sorting.

[0072] In one embodiment of the present disclosure, the job module 430 is further configured to: before the stone coal is discharged into the slag bin, determine whether the corresponding coal mill has a running condition, the running condition being that the valve between the corresponding coal mill and the coal bucket is open, all valves between the coal buckets of all coal mills and the fan are closed, the negative pressure fan is closed, and the program control of the coal mills other than the corresponding coal mill is not running; and in response to the running condition, discharge the stone coal of the corresponding coal mill into the slag bin. By determining the target mode to be executed from the first running mode to be changed and the second running mode currently running, it can be determined whether the condition for mode conversion is met, and the target coal mill to be executed can be accurately determined. In this way, the effectiveness and stability of the adjustment of the coal mill can be improved, and the probability of accidents caused by subjective judgment of personnel can be reduced compared with the prior art.

[0073] To implement the above-mentioned embodiments, the present disclosure further provides an electronic device 500, Figure 5 is a schematic diagram of an electronic device according to an embodiment of the present disclosure, as Figure 5 shown, the electronic device 500 includes a processor 501 and a memory 502 in communication with the processor, the memory 502 storing instructions executable by at least one processor, the instructions being executed by the at least one processor 501 to implement the mode judgment-based stone coal pneumatic conveying system control method according to the first aspect of the present disclosure.

[0074] To implement the above-mentioned embodiments, the present disclosure further provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to implement the mode judgment-based stone coal pneumatic conveying system control method according to the first aspect of the present disclosure.

[0075] To implement the above-mentioned embodiments, the present disclosure further provides a computer program product, including a computer program, the computer program being executed by a processor to implement the mode judgment-based stone coal pneumatic conveying system control method according to the first aspect of the present disclosure.

[0076] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure.

[0077] In addition, the terms "first", "second", etc. are used only for the purpose of description, and should not be construed as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0078] In the description of the present disclosure, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0079] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are exemplary and should not be construed as limiting the present disclosure, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present disclosure.

Claims

1. A control method of a stone gas pneumatic conveying system based on pattern judgment, characterized in that, The method comprises the following steps: obtaining a first operation mode to be changed and a second operation mode currently running of a stone coal gas conveying system; determining a target mode to be executed preferentially from the first operation mode and the second operation mode; determining a target mill corresponding to the target mode from a plurality of mills and discharging stone coal of the target mill into a bunker; the step of determining the target mode to be executed preferentially from the first operation mode and the second operation mode comprises: the first operation mode is a manual mode, the second operation mode is an alarm mode or a cycle mode, and the target mode is determined as the first operation mode; or the first operation mode is an alarm mode, and the second operation mode is a cycle mode, and the target mode is determined as the first operation mode; the step of determining the target mill corresponding to the target mode comprises: the cycle mode determines the target mill based on a grinding time of the mill; the alarm mode determines the target mill according to an alarm time of the mill; the target mill of the manual mode is determined according to an instruction input by a person; the method further comprises: after the target mode is executed, switching the stone coal gas conveying system to the cycle mode; obtaining a grinding time of all the mills and sorting all the mills in descending order of the grinding time; discharging stone coal of the mill into the bunker according to the sorting; the method further comprises: before the stone coal is discharged into the bunker, determining whether the corresponding mill has a running condition, the running condition being that a valve between the corresponding mill and a coal hopper is open, all valves between coal hoppers of all the mills and a fan are closed, a negative pressure fan is closed, and a program control of a mill other than the corresponding mill is not running; in response to the running condition, discharging the stone coal of the corresponding mill into the bunker.

2. The method of claim 1, wherein, the step of determining the target mill corresponding to the target mode from a plurality of mills and discharging stone coal of the target mill into a bunker comprises: obtaining a target mill in the first operation mode and an operation sequence of the target mill; discharging stone coal of the target mill into the bunker according to the operation sequence.

3. The method of claim 1, wherein, the step of determining the target mill corresponding to the target mode from a plurality of mills and discharging stone coal of the target mill into a bunker comprises: determining a mill that alarms as the target mill and obtaining an alarm time of the target mill; sorting the target mill in descending order of the alarm time; discharging stone coal of the target mill into the bunker according to the sorting.

4. A control device for a mode-judgment-based stone gas pneumatic conveying system, characterized by comprising: The method comprises the following steps: an obtaining module is configured to obtain a first operation mode to be changed and a second operation mode currently running of a stone coal gas conveying system; a determining module is configured to determine a target mode to be executed preferentially from the first operation mode and the second operation mode; a working module is configured to determine a target mill corresponding to the target mode from a plurality of mills and discharge stone coal of the target mill into a bunker; the determining module is specifically configured to: The first operation mode is a manual mode, the second operation mode is an alarm mode or a cycle mode, and the target mode is determined as the first operation mode; or The first operation mode is an alarm mode, the second operation mode is a cycle mode, and the target mode is determined as the first operation mode; The job module is specifically configured to: The cycle mode determines the target mill based on the grinding time of the mill; The alarm mode determines the target mill according to the alarm time of the mill; The target mill of the manual mode determines the target mill according to the instruction input by the personnel; The determination module is further configured to: When the target mode is executed, the stone coal pneumatic conveying system is switched to the cycle mode; The job module is further configured to Obtain the grinding time of all mills, and sort all mills according to the grinding time from long to short; According to the sorting, the stone coal of the mill is discharged into the slag bin; Before the stone coal is discharged into the slag bin, it is determined whether the corresponding mill has a running condition, and the running condition is that the valve between the corresponding mill and the coal bucket is open, and the valve between the coal bucket of all mills and the fan is closed, and the negative pressure fan is closed, and the program control of the mill other than the corresponding mill is not running; In response to the running condition, the stone coal of the corresponding mill is discharged into the slag bin.

5. An electronic device, comprising: comprises a memory, a processor; The processor runs a program corresponding to the executable program code stored in the memory by reading the executable program code, to implement the method of any one of claims 1-3.

6. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer execution instructions, and the computer execution instructions are executed by the processor to implement the method of any one of claims 1-3.

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