CN114321887A - Material adding control method, control device and control system - Google Patents
Material adding control method, control device and control system Download PDFInfo
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Abstract
The application provides a material adding control method, a material adding control device and a material adding control system, relates to the technical field of thermoelectricity, and solves the problem that the safety of operation of a boiler unit is difficult to guarantee due to the fact that a mode of accurately controlling the adding amount of coal slime is not available at present. The method comprises the following steps: acquiring load information of a boiler; determining the addition amount of the first coal slime according to the load information and a first preset function; and controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
Description
Technical Field
The application relates to the technical field of thermoelectricity, in particular to a material adding control method, a material adding control device and a material adding control system.
Background
The coal slime has higher water content, finer granularity and stronger cohesiveness, so that the coal slime is difficult to treat and utilize, most of the coal slime is discarded as waste, energy waste is caused, and the environment is polluted.
The circulating fluidized bed boiler has the advantages of wide fuel adaptability, low pollutant discharge and the like, and can be used as an effective way for clean and efficient utilization of coal slime. However, at present, there is no way to accurately control the adding amount of the coal slime, so that the safety of the operation of the boiler unit is difficult to guarantee.
Disclosure of Invention
The invention provides a material adding control method, a material adding control device and a material adding control system, which can be used for solving the problem that the safety of the operation of a boiler unit is difficult to guarantee because no method for accurately controlling the adding amount of coal slime exists in the prior art.
In a first aspect, an embodiment of the present application provides a material addition control method, including:
acquiring load information of a boiler;
determining the addition amount of the first coal slime according to the load information and a first preset function;
and controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
In a second aspect, an embodiment of the present application provides a material addition control device, including:
the acquisition module is used for acquiring load information of the boiler;
the determining module is used for determining the adding amount of the first coal slime according to the load information and a first preset function;
and the control module is used for controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
In a third aspect, an embodiment of the present application provides a material addition control system, where the system includes a boiler, a coal slurry conveying device, and a material addition control device as described in the second aspect of the embodiment of the present application;
the boiler and the coal slime conveying equipment are connected with the material adding control device.
In a fourth aspect, embodiments of the present application provide an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executed on the processor, where the program or instructions, when executed by the processor, implement the steps of the method according to the first aspect.
In a fifth aspect, the present embodiments provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.
In a sixth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
The beneficial effect that this application brought is as follows:
in the embodiment of the application, load information of a boiler is obtained; determining the addition amount of the first coal slime according to the load information and a first preset function; controlling the adding amount of the coal slime based on the adding amount of the first coal slime; because the scheme that this application embodiment provided can confirm first coal slime addition based on the operating condition of boiler to further control actual coal slime addition based on this first coal slime addition, make the addition that can accurately control the coal slime according to the operating condition of boiler, and then the addition of coal slime can be with the operating condition phase-match of boiler, avoid the condition of coking in the stove to take place, thereby can guarantee the safe operation of boiler unit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts. In the drawings:
fig. 1 is a schematic flow chart of a material addition control method according to an embodiment of the present disclosure;
fig. 2 is a schematic control logic diagram corresponding to a material addition control method provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a material addition control device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a material addition control system according to an embodiment of the present disclosure;
reference numerals:
30-material addition control system; 301-boiler; 302-coal slurry conveying equipment.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
As described in the above background art, the circulating fluidized bed boiler has the advantages of wide fuel adaptability, low pollutant discharge, and the like, and can be used as an effective way for clean and efficient utilization of coal slime. The coal slime is conveyed into the hearth to be mixed with the fire coal for burning, so that part of the fire coal is replaced for burning, the coal slime can be recycled, and the energy waste and the pollution to the environment can be reduced. However, at present, there is no way to accurately control the addition amount of the coal slurry, so that the addition amount of the coal slurry cannot be matched with the actual working condition of the boiler unit, coking and the like in the boiler are easily caused, and the safety of the operation of the boiler unit is difficult to guarantee.
In view of the above, the embodiment of the application provides a material addition control method, which can be used for solving the technical problem that the operation safety of a boiler unit is difficult to guarantee because no method for accurately controlling the coal slime addition is available at present. The material addition control method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings by specific embodiments.
As shown in fig. 1, the present application provides a material addition control method, which may be executed by an electronic device, in other words, the method may be executed by software or hardware installed on the electronic device, and the method may include the following steps:
Wherein, the material can be coal slime. The boiler may be a boiler unit; the load information may be a unit load command for the boiler unit.
And 102, determining a first coal slurry adding amount according to the load information and a first preset function.
The first coal slurry adding amount is determined according to load information of the boiler and a first preset function, wherein the load information can be brought into the first preset function, and the first coal slurry adding amount is obtained through calculation. The first coal slurry adding amount may also be referred to as a basic coal slurry adding amount, and subsequently, an actual coal slurry adding amount (corresponding to a target coal slurry adding amount in the following text) to the boiler may be further determined based on the basic coal slurry adding amount.
The first preset function may specifically be a polygonal line function which is drawn in advance according to different boiler loads and corresponding coal slurry amount (which is a percentage of the maximum coal slurry addition amount) suitable for adding. The fold line function can be obtained by drawing according to data in table 1, wherein the abscissa X is different boiler loads, and the ordinate Y is the amount of coal slime which is suitable to be added correspondingly:
TABLE 1
| X | Y |
| 40％P0 | 25％ |
| 45％ |
30％ |
| 50％P0 | 35％ |
| 55％P0 | 40％ |
| 60％P0 | 45％ |
| 65％P0 | 50％ |
| 70％P0 | 55％ |
| 75％P0 | 60％ |
| 80％P0 | 60％ |
| 85％P0 | 60％ |
| 90％P0 | 60％ |
| 95％P0 | 60％ |
| 100％P0 | 60％ |
Wherein, P0The rated load of the unit.
And 103, controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
The actual adding amount of the coal slime of the boiler can be guided based on the adding amount of the first coal slime.
In this application embodiment, step 103 is based on first coal slime addition, the addition of control coal slime can be directly according to first coal slime addition, the actual coal slime addition of control, for example, directly adjust actual coal slime addition to first coal slime addition. In practical applications, there may be many factors affecting the addition amount of the coal slurry, and therefore, the step 103 controls the addition amount of the coal slurry based on the addition amount of the first coal slurry, or controls the actual addition amount of the coal slurry based on the addition amount of the first coal slurry in combination with other factors.
It can be understood that the load information of the boiler is obtained by adopting the material adding control method provided by the embodiment of the application; determining the addition amount of the first coal slime according to the load information and a first preset function; controlling the adding amount of the coal slime based on the adding amount of the first coal slime; because the scheme that this application embodiment provided can confirm first coal slime addition based on the operating condition of boiler to further control actual coal slime addition based on this first coal slime addition, make the addition that can accurately control the coal slime according to the operating condition of boiler, and then the addition of coal slime can be with the operating condition phase-match of boiler, avoid the condition of coking in the stove to take place, thereby can guarantee the safe operation of boiler unit. On the other hand, because the material adding control method provided by the embodiment of the application can be executed by electronic equipment, the automatic control of adding the coal slime can be realized, and compared with the manual control performed by technical personnel according to experience, the method can play a role in accurate and timely control, thereby further ensuring the safety of the operation of the boiler unit.
In practical application, when the unit reaches a certain load, the amount of return materials and the amount of materials in the bed can ensure normal combustion after the coal slime is added. Therefore, in order to enable the coal slime to be normally combusted after being conveyed into the furnace chamber, and heat can be fully utilized, in an embodiment, after the load information of the boiler is obtained in step 101, the material addition control method provided by the embodiment of the application further includes: and judging whether the load information is larger than or equal to a target load. Step 102, determining a first coal slurry adding amount according to the load information and a first preset function, and the step comprises the following steps: and responding to the load information being larger than or equal to the target load, and determining the first coal slurry adding amount according to the load information and the first preset function.
The target load may be, for example, 40% of the rated load of the boiler unit, and other values may be set for the target load according to actual conditions.
In this application embodiment, step 102 is according to load information and first predetermined function confirm first coal slime addition the load information is more than or equal to just go on under the condition of target load, can understand, works as load information is less than when the target load, can stop to carry out the burning with coal slime input furnace, can avoid carrying into the coal slime with coal slime input when unsatisfied coal slime burning condition in the stove and burn in furnace. And when the load information is larger than or equal to the target load, calculating the addition amount of the first coal slime, and controlling the addition amount of the coal slime based on the addition amount of the first coal slime so that the addition amount of the coal slime can be matched with the actual working condition of the boiler.
Can understand, adopt above-mentioned scheme for after the boiler reaches certain load, just calculate first coal slime addition, and based on this first coal slime addition of volume control actual coal slime addition, can avoid carrying into the coal slime into furnace and burn when unsatisfied coal slime combustion condition in the stove, and then can also avoid the condition of coking in the stove to take place when realizing the abundant burning of coal slime, thereby can further guarantee boiler unit's safe operation.
In practical application, the bed temperature is also an important factor influencing the combustion of the coal slime. Under the condition of low or high bed temperature, a large amount of coal slime is added to affect the combustion in the boiler, thereby causing the consequence of boiler coking. Therefore, in order to further ensure safe operation of the boiler unit, in an embodiment, before controlling the addition amount of the coal slurry based on the first coal slurry addition amount in step 103, the method for controlling material addition provided by the embodiment of the present application further includes: acquiring bed temperature information of the boiler; determining the addition amount of a second coal slime according to the bed temperature information and a second preset function; step 103, controlling the adding amount of the coal slurry based on the adding amount of the first coal slurry, and the step comprises the following steps: and determining a third coal slurry addition amount according to the first coal slurry addition amount and the second coal slurry addition amount, and controlling the coal slurry addition amount based on the third coal slurry addition amount.
Wherein the bed temperature information may be a real-time average bed temperature in the furnace.
And determining the second coal slurry addition amount according to the bed temperature information and a second preset function, wherein the bed temperature information can be brought into the second preset function, and the second coal slurry addition amount is obtained through calculation.
The second preset function may be a polygonal line function which is drawn in advance according to different bed temperatures and corresponding coal slime adding correction values. The polygonal line function can be obtained by drawing according to data in table 2, wherein the abscissa X is different bed temperatures, the unit is, and the ordinate Y is a corresponding coal slime adding correction value:
TABLE 2
| X | Y |
| 830 | -15％ |
| 840 | -5％ |
| 850 | 0 |
| 860 | 0 |
| 870 | 0 |
| 880 | 0 |
| 890 | 0 |
| 900 | 0 |
| 910 | 0 |
| 920 | 0 |
In the embodiment of the application, the second coal slurry adding amount (i.e., the coal slurry adding correction value) calculated according to the bed temperature information and the second preset function may be a positive value or a negative value. And determining the addition amount of the third coal slurry according to the addition amount of the first coal slurry and the addition amount of the second coal slurry, wherein the addition amount of the first coal slurry and the addition amount of the second coal slurry can be added to obtain the addition amount of the third coal slurry.
In this application embodiment, based on third coal slime addition, control the addition of coal slime can be based on third coal slime addition guides the actual coal slime addition of boiler. In practical application, based on the third coal slime addition, the addition of the coal slime is controlled, the actual coal slime addition can be controlled directly according to the third coal slime addition, for example, the actual coal slime addition is directly adjusted to the third coal slime addition, and the actual coal slime addition can also be controlled by combining other influence factors on the basis of the third coal slime addition.
It can be understood, adopt above-mentioned scheme, through confirming the second coal slime addition according to bed temperature information and second preset function to confirm the third coal slime addition according to first coal slime addition and second coal slime addition, and based on the third coal slime addition, control the addition of coal slime makes can carry out certain correction to first coal slime addition according to bed temperature information, and then when confirming actual coal slime addition, has superposed bed temperature influence factor, makes the addition of coal slime can more match with the operating condition of boiler, thereby can further improve the security of boiler unit operation. On the other hand, the adding amount of the first coal slime is corrected according to the change of the bed temperature, and the adding amount of the coal slime can be adjusted in time, so that the adding amount of the coal slime can be increased, and the large-proportion mixed burning of the coal slime is realized.
In this embodiment of the application, the third coal slurry adding amount may be determined according to the first coal slurry adding amount and the second coal slurry adding amount as described above, or may be the coal slurry adding amount input by a technician.
In practical application, after the third coal slurry adding amount is determined, the material adding control method provided by the embodiment of the application may further include: determining a target limiting rate; then, the controlling the addition amount of the coal slurry according to the addition amount of the third coal slurry may specifically include: and controlling the adding amount of the coal slime according to the adding amount of the third coal slime and the target limiting rate.
The target rate limit may be used to limit a rate of conveying coal slurry, and a specific value of the target rate limit may be set according to actual needs.
By adopting the scheme, the speed of conveying the coal slime into the hearth is further limited, so that the phenomenon that a large amount of coal slime is conveyed to the hearth suddenly and is greatly disturbed under the working condition of the unit can be avoided, and the coking condition can be further avoided.
Further, in one embodiment, the controlling the addition of the coal slurry based on the third coal slurry addition comprises: determining the target coal slime adding amount according to the first preset coal slime adding amount, the second preset coal slime adding amount and the third coal slime adding amount; controlling the adding amount of the coal slime according to the target adding amount of the coal slime; and the adding amount of the first preset coal slime is less than that of the second preset coal slime.
The first preset coal slime adding amount and the second preset coal slime adding amount can be set according to actual needs. For example, the first predetermined coal slurry addition amount may be 25% of the maximum coal slurry addition amount, and the second predetermined coal slurry addition amount may be 60% of the maximum coal slurry addition amount.
In this application embodiment, according to first predetermined coal slime addition, the predetermined coal slime addition of second with third coal slime addition, confirm target coal slime addition, specifically can be, will third coal slime addition with the predetermined coal slime addition of second is compared, gets the value less in the two, then with this less value with first predetermined coal slime addition is compared, gets the great value in the two, confirms this great value as target coal slime addition.
And controlling the addition amount of the coal slime according to the target coal slime addition amount, wherein the actual coal slime addition amount can be directly controlled according to the target coal slime addition amount, for example, the actual coal slime addition amount is directly adjusted to the target coal slime addition amount.
By adopting the scheme, the final target coal slime adding amount is further determined by setting the first preset coal slime adding amount and the second preset coal slime adding amount, the actual coal slime adding amount is controlled according to the target coal slime adding amount, and the running safety of a boiler unit can be further improved.
In order to further improve the safety of unit operation, in an embodiment, after the target coal slurry addition amount is determined, the method for controlling material addition provided in the embodiment of the present application further includes: judging whether target information is received or not; and in response to receiving the target information, setting the target coal slime adding amount to zero.
In an embodiment of the present application, the target information may include any one or more of the following information: the load of the unit is lower than the target load, the unit has an auxiliary machine fault load Reduction (RB) action, the unit has a total fuel trip (MFT) action, the bed temperature is lower than a first target temperature, the bed temperature is higher than a second target temperature, and the coal slime conveying line has a fault.
Wherein the target load may be 40% of the rated load of the unit. The first target temperature and the second target temperature may be set according to actual conditions, for example, the first target temperature may be 830 ℃, and the second target temperature may be 920 ℃. The coal slurry conveying line can be in failure of a feeding pump frequency converter and/or a coal slurry pump.
By adopting the scheme, the target coal slime adding amount is set to be zero in response to the received target information, namely, the coal slime can be controlled not to be conveyed into the furnace when the target information corresponds to the target information, so that the running safety of the unit can be further improved.
Considering that a unit may include multiple sets of lines (generally, one transfer line corresponds to one slurry pump) for transferring slurry, in order to separately control the slurry amount transferred by each transfer line, in an embodiment, after determining a target slurry addition amount and not receiving the target message, the method for controlling material addition provided in the embodiment of the present application further includes: and determining the coal slurry conveying amount corresponding to a single coal slurry pump according to the target coal slurry adding amount and the number of the coal slurry pumps.
In practical application, probably there is individual coal slime pump to be in overhauing the trial transportation, also may have the transfer line that partial coal slime pump corresponds to be in under the operating condition of technical staff manual control, consequently in this application embodiment, according to target coal slime addition and the coal slime pump quantity confirm the coal slime delivery volume that single coal slime pump corresponds, specifically can be, the coal slime volume that the transfer line that is under the manual control operating condition carried is subtracted on the basis of target coal slime addition obtains coal slime volume N, then the quantity of the coal slime pump that this coal slime volume N of reuse was divided with under the automatic control normal operating condition, can determine the coal slime delivery volume that single coal slime pump corresponds.
Can understand, adopt above-mentioned scheme, through target coal slime add volume and coal slime pump quantity, can confirm the coal slime delivery capacity that single coal slime pump corresponds, and then according to the coal slime delivery capacity that single coal slime pump corresponds, control every coal slime pump to can realize accurate, the timely transport of coal slime.
According to the material adding control method, the coal feeding amount matched with the target coal slime adding amount of the unit can be further determined on the basis of controlling the adding amount of the coal slime according to the target coal slime adding amount. Therefore, in an implementation manner, the material addition control method provided in the embodiment of the present application further includes: acquiring the real-time coal feeding amount of the design coal type corresponding to the boiler; determining the target coal feeding amount of the design coal type corresponding to the boiler according to the real-time coal feeding amount and the target coal slime adding amount; and controlling the adding amount of the design coal type based on the target coal feeding amount.
The design coal type is the coal type adopted by the boiler power plant during design, the boiler power plant performs primary design and thermodynamic calculation of the boiler according to the coal type data, and determines main operation parameters, performance data, heating surface structure form and arrangement of the boiler, and the design coal type is the most common coal type during operation of the power plant.
The target coal feeding amount may be a coal feeding amount (coal feeding amount of a designed coal type) which is matched with the target coal slurry adding amount and is to be conveyed to the boiler, and after the target coal feeding amount is determined, the designed coal type may be conveyed to the boiler according to the target coal feeding amount.
In this application embodiment, according to give in real time the coal measure with target coal slime addition, confirm the target coal measure is given to the design coal measure that the boiler corresponds, can be with target coal slime addition conversion does the coal measure of design coal measure then uses the coal measure after target coal slime addition conversion is subtracted to give the coal measure in real time obtains first target coal measure, based on this first target coal measure, confirms the target coal measure of the design coal measure that the boiler corresponds.
The target coal slime adding amount is converted into the coal amount of the designed coal type, and specifically, the conversion can be performed based on a third preset function, and the third preset function can be specifically obtained through the following formula (1) and formula (2):
m＝ρ·s·h1 (1)
wherein m is the pumping capacity of the coal slime in unit time (one hour), s is the sectional area at the bottom of the coal slime storage bin, rho is the density of the coal slime prepared by the coal slime storage bin, and h1And the coal slime is descended to the height in the coal slime bin. And m corresponds to the target coal slurry adding amount Q (%).
Wherein, the water content of the coal slime is set to be 30 percent, and B is the coal feeding amount of the designed coal type corresponding to the conversion of the coal slime, which is ton; c0The specific heat capacity of water is J/Kg DEG C; t is t1The exhaust gas temperature, DEG C; t is t2The temperature of the coal slime bin is DEG C; q. q.s1The calorific value of the coal slime is J/Kg; and q is the calorific value of the design standard coal, J/Kg.
In practical application, the target coal feeding amount of the designed coal type corresponding to the boiler is not only influenced by the target coal slurry adding amount, but also may be influenced by the operation state of the boiler, and therefore, further, in an implementation manner, the material adding control method provided by the embodiment of the present application further includes: and determining a second target coal feeding amount according to the boiler instruction, the boiler air volume and the boiler oxygen volume, and determining a target coal feeding amount of the design coal type corresponding to the boiler based on the first target coal feeding amount and the second target coal feeding amount.
By adopting the scheme, after the target coal slime adding amount is determined and the coal slime is controlled to be added, the coal feeding amount matched with the target coal slime adding amount can be further determined, so that the maximization of coal slime co-combustion can be realized.
In practical application, a control logic diagram corresponding to the material addition control method provided by the embodiment of the present application may be as shown in fig. 2.
The control logic in fig. 2 can refer to the above embodiments, and is not described herein again.
The function blocks 3 and 7(T1 and T2 switching function blocks) are switched to different control loops when the trigger condition is met, wherein the control loops are a manual control loop and an automatic control loop respectively. And a function block 2 (non-function block) for inverting the state of the switching value signal and outputting the opposite state. Function block 1 (sigma-sum function block) is used for a summation operation of a plurality of numerical values. The function block 4 (rate limiting function block) is used to limit the input signal rate. The function blocks 5, 10 (small selection function blocks) are used to select the minimum value among a plurality of numerical values. The function block 6 (big select function) is used to select the maximum value among a plurality of numerical values. The function blocks 8 and 12 (addition/subtraction function blocks) are used for addition/subtraction of a plurality of numerical values. And a function block 9 (proportional integral control module) for proportional integral operation of the set value and the feedback value.
It should be noted that, in the material addition control method provided in the embodiment of the present application, the execution main body may be a material addition control device. In the embodiment of the present application, a material addition control device is used as an example to execute a material addition control method, and the material addition control device provided in the embodiment of the present application is described.
The embodiment of the present application further provides a material adding control device 20, as shown in fig. 3, where the material adding control device 20 includes:
the acquiring module 201 is configured to acquire load information of the boiler.
Wherein, the material can be coal slime. The boiler may be a boiler unit; the load information may be a unit load command for the boiler unit.
And the determining module 202 is configured to determine a first coal slurry adding amount according to the load information and a first preset function.
The first coal slurry adding amount is determined according to load information of the boiler and a first preset function, wherein the load information can be brought into the first preset function, and the first coal slurry adding amount is obtained through calculation. The first coal slurry adding amount may also be referred to as a basic coal slurry adding amount, and subsequently, an actual coal slurry adding amount (corresponding to a target coal slurry adding amount in the following text) to the boiler may be further determined based on the basic coal slurry adding amount. The first preset function may refer to the above embodiments, and is not described herein again.
And the control module 203 is used for controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
The adding amount of the coal slime is controlled based on the adding amount of the first coal slime, and the actual adding amount of the coal slime can be directly controlled according to the adding amount of the first coal slime; or the actual adding amount of the coal slurry can be controlled by combining other influence factors on the basis of the adding amount of the first coal slurry
It can be understood that, by using the material feeding control device 20 provided in the embodiment of the present application, the load information of the boiler is obtained; determining the addition amount of the first coal slime according to the load information and a first preset function; controlling the adding amount of the coal slime based on the adding amount of the first coal slime; because the scheme that this application embodiment provided can confirm first coal slime addition based on the operating condition of boiler to further control actual coal slime addition based on this first coal slime addition, make the addition that can accurately control the coal slime according to the operating condition of boiler, and then the addition of coal slime can be with the operating condition phase-match of boiler, avoid the condition of coking in the stove to take place, thereby can guarantee the safe operation of boiler unit. On the other hand, because the material adding control method provided by the embodiment of the application can be executed by electronic equipment, the automatic control of adding the coal slime can be realized, and compared with the manual control performed by technical personnel according to experience, the method can play a role in accurate and timely control, thereby further ensuring the safety of the operation of the boiler unit.
In an implementation manner, the material adding control device 20 provided in the embodiment of the present application further includes a determining module;
the judging module is used for judging whether the load information is greater than or equal to a target load; the obtaining module 202 is specifically configured to determine, in response to the load information being greater than or equal to a target load, the first coal slurry addition amount according to the load information and the first preset function.
In one embodiment, the obtaining module 201 is further configured to obtain bed temperature information of the boiler; the obtaining module 202 is further configured to determine a second coal slurry addition amount according to the bed temperature information and a second preset function, and determine a third coal slurry addition amount according to the first coal slurry addition amount and the second coal slurry addition amount; the obtaining module 203 is specifically configured to control the addition amount of the coal slurry based on the addition amount of the third coal slurry.
In an embodiment, the obtaining module 202 is further configured to determine a target coal slurry addition amount according to a first preset coal slurry addition amount, a second preset coal slurry addition amount, and the third coal slurry addition amount, where the first preset coal slurry addition amount is smaller than the second preset coal slurry addition amount; the obtaining module 203 is specifically configured to control the adding amount of the coal slurry according to the target adding amount of the coal slurry.
In one embodiment, the determining module is further configured to determine whether target information is received; the obtaining module 203 is further configured to set the target coal slurry addition amount to zero in response to receiving the target information.
In an embodiment, the obtaining module 201 is further configured to obtain a real-time coal feeding amount of a design coal type corresponding to the boiler; the obtaining module 202 is further configured to determine a target coal feeding amount of a design coal type corresponding to the boiler according to the real-time coal feeding amount and the target coal slime adding amount; the obtaining module 203 is further configured to control the adding amount of the design coal based on the target coal feeding amount.
Based on the material adding control device 20 provided in the above embodiment of the present application, an embodiment of the present application further provides a material adding control system 30, as shown in fig. 4, where the material adding control system 30 includes: a boiler 301, a coal slurry conveying device 302 and the material adding control device 20 provided by the above embodiment of the present application; the boiler 301 and the coal slurry conveying equipment 302 are both connected with the material adding control device 20.
Wherein the boiler 301 may be a boiler bank. The boiler 301 and the coal slurry conveying device 302 are connected to the material adding control device 20, and may specifically be connected to an electronic device corresponding to the material adding control device 20.
The material feeding control device 20 is connected to the boiler 301, and can obtain boiler load information, bed temperature information, target information, and a real-time coal feeding amount of a corresponding design coal type from the boiler 301. The boiler unit further includes a control end for receiving an instruction manually input by a technician, and the material addition control device 20 may also obtain the instruction manually input by the technician from the boiler unit, such as the aforementioned coal slurry addition amount input by the technician, and may also obtain an automatic/manual control switching instruction manually input by the technician.
Coal slime conveying equipment 302 specifically can be including the coal slime preparation system, coal slime storehouse, frequency conversion feed pump, coal slime pump and the coal slime pipeline that connect gradually, and coal slime pipeline's export and furnace intercommunication. The material adding control device 20 is connected with the coal slurry conveying equipment 302 and can control the coal slurry conveying equipment 302.
It can be understood that, by using the material addition control system 30 provided in the embodiment of the present application, the load information of the boiler is obtained; determining the addition amount of the first coal slime according to the load information and a first preset function; controlling the adding amount of the coal slime based on the adding amount of the first coal slime; because the scheme that this application embodiment provided can confirm first coal slime addition based on the operating condition of boiler to further control actual coal slime addition based on this first coal slime addition, make the addition that can accurately control the coal slime according to the operating condition of boiler, and then the addition of coal slime can be with the operating condition phase-match of boiler, avoid the condition of coking in the stove to take place, thereby can guarantee the safe operation of boiler unit.
It should be noted that the electronic devices in the embodiments of the present application include mobile electronic devices and non-mobile electronic devices. Specifically, the electronic device includes, but is not limited to: radio frequency unit, network module, audio output unit, input unit, sensor, display unit, user input unit, interface unit, memory, and processor. The processor is used for acquiring load information of the boiler; determining the addition amount of the first coal slime according to the load information and a first preset function; and controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned material addition control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above embodiment of the material addition control method, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, 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 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A method of controlling the addition of material, the method comprising:
acquiring load information of a boiler;
determining the addition amount of the first coal slime according to the load information and a first preset function;
and controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
2. The material addition control method according to claim 1, wherein after the obtaining of the load information of the boiler, the control method further comprises:
judging whether the load information is greater than or equal to a target load;
the determining the adding amount of the first coal slurry according to the load information and a first preset function comprises the following steps:
and responding to the load information being larger than or equal to the target load, and determining the first coal slurry adding amount according to the load information and the first preset function.
3. The material addition control method according to claim 1, wherein before the controlling of the addition of the coal slurry based on the first coal slurry addition, the control method further comprises:
acquiring bed temperature information of the boiler;
determining the addition amount of a second coal slime according to the bed temperature information and a second preset function;
based on first coal slime addition, the addition of control coal slime includes:
and determining a third coal slurry addition amount according to the first coal slurry addition amount and the second coal slurry addition amount, and controlling the coal slurry addition amount based on the third coal slurry addition amount.
4. The material addition control method according to claim 3, wherein the controlling the addition amount of the coal slurry based on the third coal slurry addition amount comprises:
determining the target coal slime adding amount according to the first preset coal slime adding amount, the second preset coal slime adding amount and the third coal slime adding amount;
controlling the adding amount of the coal slime according to the target adding amount of the coal slime; and the adding amount of the first preset coal slime is less than that of the second preset coal slime.
5. The material addition control method according to claim 4, wherein after the determining of the target coal slurry addition amount, the control method further comprises:
judging whether target information is received or not;
and in response to receiving the target information, setting the target coal slime adding amount to zero.
6. The material addition control method according to claim 4, characterized by further comprising:
acquiring the real-time coal feeding amount of the design coal type corresponding to the boiler;
determining the target coal feeding amount of the design coal type corresponding to the boiler according to the real-time coal feeding amount and the target coal slime adding amount;
and controlling the adding amount of the design coal type based on the target coal feeding amount.
7. A material addition control apparatus, the apparatus comprising:
the acquisition module is used for acquiring load information of the boiler;
the determining module is used for determining the adding amount of the first coal slime according to the load information and a first preset function;
and the control module is used for controlling the adding amount of the coal slime based on the adding amount of the first coal slime.
8. The material addition control device according to claim 7, wherein the control device further comprises a judgment module;
the judging module is used for judging whether the load information is greater than or equal to a target load;
the determining module is specifically configured to determine the first coal slurry adding amount according to the load information and the first preset function in response to that the load information is greater than or equal to a target load.
9. The material addition control device according to claim 7, wherein the obtaining module is further configured to obtain bed temperature information of the boiler;
the determining module is further configured to determine a second coal slurry addition amount according to the bed temperature information and a second preset function, and determine a third coal slurry addition amount according to the first coal slurry addition amount and the second coal slurry addition amount;
and the control module is specifically used for controlling the adding amount of the coal slime based on the adding amount of the third coal slime.
10. A material addition control system, characterized in that the system comprises a boiler, a coal slurry conveying device and a material addition control device according to any one of claims 7-9;
the boiler and the coal slime conveying equipment are connected with the material adding control device.
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| CN202210009463.9A CN114321887A (en) | 2022-01-05 | 2022-01-05 | Material adding control method, control device and control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704828A (en) * | 2022-05-09 | 2022-07-05 | 北京和隆优化科技股份有限公司 | CFB boiler load control method and system for mixed combustion of coal slime |
| CN114923170A (en) * | 2022-06-17 | 2022-08-19 | 神华准格尔能源有限责任公司 | Method for adjusting bed temperature of circulating fluidized bed boiler |
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2022
- 2022-01-05 CN CN202210009463.9A patent/CN114321887A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704828A (en) * | 2022-05-09 | 2022-07-05 | 北京和隆优化科技股份有限公司 | CFB boiler load control method and system for mixed combustion of coal slime |
| CN114704828B (en) * | 2022-05-09 | 2023-09-19 | 北京和隆优化科技股份有限公司 | CFB boiler load control method and system for blending coal slime |
| CN114923170A (en) * | 2022-06-17 | 2022-08-19 | 神华准格尔能源有限责任公司 | Method for adjusting bed temperature of circulating fluidized bed boiler |
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