CN114485258A - Coal-electricity air cooling flushing system commissioning method and device and storage medium - Google Patents
Coal-electricity air cooling flushing system commissioning method and device and storage medium Download PDFInfo
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 58
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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Abstract
The application relates to a coal electric air cooling flushing system operation method, a coal electric air cooling flushing system operation device and a storage medium. The method comprises the steps of obtaining operation data of the air-cooled power station and a power generation load value of the coal-fired air-cooled generator unit, determining an overall heat exchange coefficient of an air-cooled radiator corresponding to the power generation load value, and determining a first operation backpressure value of the air-cooled radiator after washing based on the overall heat exchange coefficient and air temperature data of the air-cooled radiator; calculating coal saving quantity based on the operation data, the power generation load value and the first operation backpressure value, obtaining unit price of coal, calculating a coal saving profit value, obtaining consumption of demineralized water and unit price of saline water, and calculating a washing cost value; and comparing the coal saving profit value with the washing cost value, and controlling the washing system to wash the air-cooled radiator in response to the coal saving profit value being greater than the washing cost value. The method and the device can accurately determine the washing time of the air cooling radiator, effectively save the washing cost and improve the washing efficiency of the air cooling radiator.
Description
Technical Field
The application relates to the technical field of coal-fired air-cooling generator sets, in particular to a coal-electric air-cooling flushing system commissioning method and device and a storage medium.
Background
In the related art, thermal power mainly includes coal power and gas power. The cold end is divided into wet cooling and air cooling, compared with wet cooling system, the air cooling unit can save more than two thirds of water consumption of power station, and the application is wide in the three north area. The air cooling system takes ambient air as a cooling medium and can be divided into two forms of direct air cooling and indirect air cooling. Direct air cooling means that the ambient air is driven by a fan to cool the exhaust steam of the power station, the exhaust steam is in the tube bundle of the air cooling radiator, and the air is outside the tube. The air-cooled radiator is exposed to ambient air, and the inevitable dust deposition and sundries adhesion not only reduce the ventilation sectional area and lift the wind resistance, but also reduce the heat exchange coefficient, further reduce the heat exchange effect, and comprehensively cause the increase of the operation back pressure and the coal consumption. In order to clean sundries attached to the outside of the air cooling radiator regularly and guarantee the cooling effect of the air cooling system, flushing systems are arranged in direct air cooling power stations, and the air cooling radiator is physically flushed by high-pressure demineralized water.
Disclosure of Invention
Therefore, the application provides a coal electric air cooling flushing system operation method, a coal electric air cooling flushing system operation device and a storage medium. The technical scheme of the application is as follows:
according to a first aspect of the embodiments of the present application, there is provided a method for commissioning a coal electric air-cooling flushing system, the method including:
responding to the end of flushing of the air-cooled radiator, and acquiring operation data of the air-cooled power station within a preset time length; the operation data comprises air temperature data of the air-cooled radiator;
acquiring a power generation load value of a coal-fired air-cooled generator unit, and determining the total heat exchange coefficient of an air-cooled radiator corresponding to the power generation load value;
determining a first running back pressure value of the air-cooled radiator after flushing based on the total heat exchange coefficient of the air-cooled radiator and the air temperature data;
calculating a coal saving amount based on the operation data, the power generation load value and the first operation backpressure value;
obtaining the unit price of coal, and calculating a coal saving profit value based on the unit price of coal and the coal saving amount;
acquiring the consumption amount of the desalted water and the unit price of the desalted water, and calculating a value of the flushing cost based on the consumption amount of the desalted water and the unit price of the desalted water;
comparing the coal saving profit value with the washing cost value to obtain a comparison result;
and controlling a flushing system to flush the air cooling radiator in response to the comparison result that the coal saving profit value is larger than the flushing cost value.
According to an embodiment of the application, the operation data further includes an operation duration, an operation frequency of the air-cooled motor and a second operation backpressure value corresponding to the power generation load value; and the second operation backpressure value is the operation backpressure value of the air cooling radiator in the state of not flushing.
According to one embodiment of the application, the air temperature data includes an air cooling fan inlet average air temperature and an air cooling fan outlet average air temperature.
According to one embodiment of the application, the average air temperature of the inlet of the air cooling fan is obtained by calculating an average value of the obtained multiple inlet air temperatures; the air temperature of the plurality of inlets is the air temperature of the air side inlet of the air-cooled radiator at different positions;
the average air temperature of the outlet of the air cooling fan is obtained by calculating the average value of the obtained multiple outlet air temperatures; and the outlet air temperatures are air temperatures of different positions of an air side outlet of the air cooling radiator.
According to one embodiment of the application, the overall heat exchange coefficient of the air-cooled radiator is obtained by the following method:
obtaining a rated power generation load value;
dividing operation sections of a plurality of power generation loads based on the rated power generation load value, and determining section power generation load values of the operation sections of the plurality of power generation loads;
obtaining sample air temperature data of the air-cooled radiator in response to the end of flushing of the air-cooled radiator;
acquiring a sample power generation load value, and determining an operation interval corresponding to the sample power generation load value so as to determine an interval power generation load value corresponding to the sample power generation load value;
and calculating the total heat exchange coefficient of the air cooling radiator corresponding to the interval power generation load value based on the sample air temperature data of the air cooling radiator and the interval power generation load value corresponding to the sample power generation load value.
According to an embodiment of the application, the determining the overall heat exchange coefficient of the air-cooled radiator corresponding to the power generation load value comprises:
determining an operation section corresponding to the power generation load value based on the power generation load value;
and determining the total heat exchange coefficient of the air cooling radiator corresponding to the power generation load value based on the operation interval corresponding to the power generation load value.
According to a second aspect of the embodiments of the present application, there is provided a coal electric air cooling flushing system commissioning device, the device including:
the first acquisition module is used for responding to the end of flushing of the air-cooled radiator and acquiring the operation data of the air-cooled power station within a preset time length; the operation data comprises air temperature data of the air-cooled radiator;
the second acquisition module is used for acquiring the power generation load value of the coal-fired air-cooled generator unit and determining the total heat exchange coefficient of the air-cooled radiator corresponding to the power generation load value;
the determining module is used for determining a first running back pressure value of the air-cooled radiator after flushing based on the total heat exchange coefficient of the air-cooled radiator and the air temperature data;
the first calculation module is used for calculating coal saving quantity based on the operation data, the power generation load value and the first operation back pressure value;
the second calculation module is used for acquiring the unit price of coal and calculating a coal saving profit value based on the unit price of coal and the coal saving amount;
a third calculation module for obtaining the consumption of the desalted water and the unit price of the brine, and calculating a washing cost value based on the consumption of the desalted water and the unit price of the brine;
the comparison module is used for comparing the coal saving profit value with the washing cost value to obtain a comparison result;
and the control module is used for controlling a flushing system to flush the air cooling radiator in response to the comparison result that the coal saving profit value is larger than the flushing cost value.
The operation data also comprises operation duration, air cooling motor operation frequency and a second operation backpressure value corresponding to the power generation load value; and the second operation backpressure value is the operation backpressure value of the air cooling radiator in the state of not flushing.
According to one embodiment of the application, the air temperature data includes an air cooling fan inlet average air temperature and an air cooling fan outlet average air temperature.
According to one embodiment of the application, the average air temperature of the inlet of the air cooling fan is obtained by calculating an average value of the obtained multiple inlet air temperatures; the air temperature of the plurality of inlets is the air temperature of the air side inlet of the air-cooled radiator at different positions;
the average air temperature of the outlet of the air cooling fan is obtained by calculating the average value of the obtained multiple outlet air temperatures; and the outlet air temperatures are air temperatures of different positions of an air side outlet of the air cooling radiator.
According to one embodiment of the application, the apparatus further comprises a computing module comprising:
the dividing submodule is used for acquiring a rated power generation load value, dividing an operation interval of a plurality of power generation loads based on the rated power generation load value, and determining an interval power generation load value of each of the operation intervals of the plurality of power generation loads;
the obtaining submodule is used for responding to the end of flushing of the air-cooled radiator and obtaining sample air temperature data of the air-cooled radiator;
the first determining submodule is used for acquiring a sample power generation load value, determining an operation interval corresponding to the sample power generation load value and determining an interval power generation load value corresponding to the sample power generation load value;
and the calculation submodule is used for calculating the total heat exchange coefficient of the air cooling radiator corresponding to the interval power generation load value based on the sample wind temperature data of the air cooling radiator and the interval power generation load value corresponding to the sample power generation load value.
According to an embodiment of the application, the second obtaining module includes:
a second determining submodule for determining an operation section corresponding to the power generation load value based on the power generation load value;
and the third determining submodule is used for determining the total heat exchange coefficient of the air cooling radiator corresponding to the power generation load value based on the operation interval corresponding to the power generation load value.
According to a third aspect of embodiments of the present application, there is provided a computer device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect.
According to a fourth aspect of embodiments of the present application, there is provided a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of the first aspect
According to a fifth aspect of embodiments herein, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the method of the first aspect.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
the coal saving benefit caused by the washing of the air cooling radiator is compared with the cost of the desalted water consumed by one-time complete washing, and the washing time of the air cooling system is determined, so that the washing time of the air cooling radiator can be accurately determined, the washing cost is effectively saved, and the washing efficiency of the air cooling radiator is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application and are not to be construed as limiting the application.
Fig. 1 is a flowchart of a method for operating a coal electric air-cooling flushing system according to an embodiment of the present application;
fig. 2 is a block diagram of a commissioning apparatus of a coal electric air-cooling flushing system according to an embodiment of the present application;
FIG. 3 is a block diagram of a computer device presented in an embodiment of the present application;
FIG. 4 is a side view of the steam exhaust distribution pipeline, the air cooling radiator, the wind temperature measuring point and the condensed water branch pipe of the power station proposed in the embodiment of the present application;
FIG. 5 is a front view of the steam exhaust distribution pipeline, the air cooling radiator, the air temperature measuring point and the condensed water branch pipe of the power station provided in the embodiment of the present application.
Reference numerals
1-a power station exhaust steam distribution pipeline; 2-air cooling radiator; 21-an air cooling unit; 3-measuring the wind temperature; 4-a condensate branch pipe; 5-air cooling fan.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
It should be noted that, in the related art, the thermal power mainly includes coal power and gas power. The cold end is divided into wet cooling and air cooling, compared with wet cooling system, the air cooling unit can save more than two thirds of water consumption of power station, and the application is wide in the three north area. The air cooling system takes ambient air as a cooling medium and can be divided into two forms of direct air cooling and indirect air cooling. Direct air cooling means that the ambient air is driven by a fan to cool the exhaust steam of the power station, the exhaust steam is in the tube bundle of the air cooling radiator, and the air is outside the tube. The air-cooled radiator is exposed to ambient air, and the inevitable dust deposition and sundries adhesion not only reduce the ventilation sectional area and lift the wind resistance, but also reduce the heat exchange coefficient, further reduce the heat exchange effect, and comprehensively cause the increase of the operation back pressure and the coal consumption. In order to clean sundries attached to the outside of the air cooling radiator regularly and guarantee the cooling effect of the air cooling system, flushing systems are arranged in direct air cooling power stations, and the air cooling radiator is physically flushed by high-pressure demineralized water.
Based on the problems, the coal-saving benefit caused by the washing of the air-cooled radiator can be compared with the cost of the desalted water consumed by one-time complete washing, the washing time of the air-cooled radiator can be determined, the washing time of the air-cooled radiator can be accurately determined, the washing cost is effectively saved, and the washing efficiency of the air-cooled radiator is improved.
Fig. 1 is a flowchart of a method for operating a coal electric air-cooling flushing system according to an embodiment of the present application.
It should be noted that the operation method of the coal electric air-cooling flushing system in the embodiment of the present application may be applied to an operation device of the coal electric air-cooling flushing system in the embodiment of the present application, and the device may be configured in a computer device. As shown in fig. 1, the commissioning method of the coal electric air-cooling flushing system comprises the following steps:
and 101, controlling a flushing system to flush the air-cooled radiator.
102, acquiring operation data of the air-cooled power station within a preset time length; the operation data comprises air temperature data of the air cooling radiator, operation duration corresponding to the power generation load value, operation frequency of the air cooling motor and a second operation backpressure value.
In the embodiment of the present application, the second operation back pressure value is an operation back pressure value of the air-cooled radiator in an unwashed state.
It can be understood that the node reference is used after the complete air cooling radiator is washed once, the surface contamination degree of the air cooling radiator is aggravated continuously along with the time, the coal saving amount is increased continuously due to the washing, and when the daily coal saving benefit is larger than the washing cost, the next washing can be started.
As a possible example, after the air-cooled radiator is flushed, the operation data of the air-cooled power station within a preset time duration is continuously acquired. For example, operational data may be obtained for 24 hours after the air-cooled radiator flush is complete. Alternatively, the operational data may be acquired at a predetermined frequency, for example, every hour.
The air temperature data comprises the average air temperature at the inlet of the air cooling fan and the average air temperature at the outlet of the air cooling fan. The average air temperature of the inlet of the air cooling fan is obtained by calculating the average value of the obtained multiple inlet air temperatures; the air temperature of the plurality of inlets is the air temperature of the air side inlet of the air-cooling radiator at different positions; the average air temperature of the outlet of the air cooling fan is obtained by calculating the average value of the obtained multiple outlet air temperatures; the air temperature of the outlets is the air temperature of the air side outlet of the air cooling radiator at different positions.
It should be noted that the air-cooled radiator has a large area, the air-cooled radiator outlet air temperatures at different positions are affected by factors such as the air side windward speed, the steam distribution, the radiator dirt degree and the like, the temperature values are different, the outlet air temperatures at the local positions cannot accurately reflect the actual temperatures, and the outlet air temperatures can be accurately indicated by averaging the high-density measurement.
For example, as shown in fig. 4 and 5, both sides of the exhaust steam distribution pipeline 1 of the power station are connected with the condensate branch pipes 4 through air cooling radiators, an air cooling fan 5 is arranged below the two condensate branch pipes 4, the air cooling radiator 2 comprises a plurality of air cooling units 21, the plurality of air cooling units 21 are connected between the exhaust steam distribution pipeline 1 of the power station and the condensate branch pipes 4, each air cooling unit 21 is divided into grids, the height direction is divided into 6 equal parts, the width direction is divided into 3 equal parts, the air temperature measuring points 3 are uniformly arranged, the air temperature is detected through air temperature detecting equipment installed on the air temperature measuring points 3, and the arrow direction in fig. 5 is the air outlet direction.
And (4) calculating the average air temperature at the outlet of the air cooling system according to the formula (1).
In the formula: t is tiIs the ith temperature value; n is the total quantity of the set outlet air temperature.
It should be noted that, the air temperature at the inlet of the air-cooling radiator is the ambient temperature, and the measurement result has low requirement on the number of the arranged measuring points, so that the average air temperature at the inlet of the air-cooling radiator can be calculated, and the air temperature at the measuring point of the air temperature at the inlet on one side can be directly acquired.
And 103, acquiring a power generation load value of the coal-fired air-cooled generator unit, and determining the total heat exchange coefficient of the air-cooled radiator corresponding to the power generation load value.
As one possible example, the overall heat exchange coefficient of the air-cooled radiator is obtained by:
step a, obtaining a rated power generation load value, dividing a plurality of power generation load operation sections based on the rated power generation load value, and determining section power generation load values of the plurality of power generation load operation sections.
For example, according to the power generation load N of the coal-fired air-cooled generator setgeAnd the operation interval, taking 10% rated load as a node, dividing the power generation load operation interval as follows:
Ngerated load N is rated for more than or equal to 95 percentge0；
N is less than or equal to 85 percent of rated loadgeLess than 95 percent of rated load and interval power generation load value of 0.9Nge0；
N is less than or equal to 75 percent of rated loadgeLess than 85% of rated load, and interval power generation load value of 0.8Nge0；
N is less than or equal to 65 percent of rated loadgeLess than 75% of rated load and interval power generation load value of 0.7Nge0；
N is less than or equal to 55 percent of rated loadgeLess than 65% of rated load and interval power generation load value of 0.6Nge0；
N is less than or equal to 45 percent of rated loadgeLess than 55 percent of rated load and interval power generation load value of 0.5Nge0；
NgeLess than 45 percent of rated load and interval power generation load value of 0.4Nge0。
And b, responding to the end of the flushing of the air-cooled radiator, and acquiring sample air temperature data of the air-cooled radiator.
It can be understood that the air cooling system completes one complete high-pressure water washing, and the surface of the air cooling radiator is considered to be clean and in the optimal heat exchange state.
As one possible example, sample air temperature data for an air-cooled radiator may be obtained continuously at a fixed frequency.
And c, acquiring a sample power generation load value, and determining an operation interval corresponding to the sample power generation load value so as to determine an interval power generation load value corresponding to the sample power generation load value.
As a possible example, each time sample wind temperature data is acquired, a sample power generation load value is acquired correspondingly, and based on the sample power generation load value, an operation section corresponding to the sample power generation load value is found, thereby determining a section power generation load value corresponding to the sample power generation load value.
And d, calculating the total heat exchange coefficient of the air-cooled radiator corresponding to the interval power generation load value based on the sample air temperature data of the air-cooled radiator and the interval power generation load value corresponding to the sample power generation load value.
For example, the section power generation load value N is calculated separatelyge0、0.9Nge0、0.8Nge0、0.7Nge0、0.6Nge0、0.5Nge0And 0.4Nge0The overall heat exchange coefficient K of the air cooling system.
At rated power generation load Nge0For example, the overall heat exchange coefficient K of the air cooling system is carried out1＝f1(f) The process of (2) is as follows:
d1, operating the air cooling fan at the rated frequency of 50Hz, measuring and calculating the air temperature t at the inlet of the air cooling faniAnd outlet air temperature to。
Step d2, calculating the logarithmic mean temperature difference delta t of the air cooling systemm，ΔtmThe calculation formula is as follows:
in the formula, tsFor air-cooled power station operation backpressure pcCorresponding saturated steam temperature, tsThe calculation formula is as follows:
ts＝－0.029×pc 2+2.28×pc+26.13 (3)
step d3, calculating the exhaust heat load Q of the air cooling power station based on the interval power generation load value according to the heat and energy balance principle of the turbo generator set1。
Step d4, calculating the total heat exchange system K of the air cooling system1-1，K1-1The calculation formula is as follows:
in the formula, A is the total heat exchange area of the air cooling system.
Step d5, the operation frequencies of the air cooling fan are respectively adjusted to be 20Hz, 30Hz and 40Hz, and the overall heat exchange coefficient K of the air cooling fan is calculated according to the steps d 1-d 41-2、K1-3、K1-4Is a reaction of K1-1、K1-2、K1-3、K1-4Obtaining rated power generation load N by fittingge0The correlation of the total heat exchange system of the lower air cooling system along with the frequency of the fan is as follows: k is1＝f1(f)。
Sequentially obtain the power generation load of 0.9Nge0、0.8Nge0、0.7Nge0、0.6Nge0、0.5Nge0And 0.4Nge0The correlation of the total heat exchange system of the lower air cooling system along with the frequency of the fan is as follows: k2＝f2(f)、K3＝f3(f)、K4＝f4(f)、K5＝f5(f)、K6＝f6(f)、K7＝f7(f)。
And 104, determining a first running back pressure value of the air-cooled radiator after flushing based on the overall heat exchange coefficient and the air temperature data of the air-cooled radiator.
It can be understood that, knowing the total heat exchange coefficient and the air temperature data of the air-cooled radiator, the first operation backpressure value can be calculated by the formula (2) to the formula (4)
And 105, calculating the coal saving amount based on the operation data, the power generation load value and the first operation back pressure value.
For example, after the washing of the primary air-cooled radiator is completed, the first operation backpressure value P corresponding to each power generation load after the assumed operation of the washing system is calculated according to the expressions (2), (3) and (4)c0-iAnd assuming that the air temperature of the air cooling inlet, the running frequency of the air cooling fan and the statistical working condition of each power generation load working condition in the working condition are the same. The day within 24 hours after the completion of the primary air-cooled radiator washing is calculated according to the formula (5)Coal saving amount B (unit: ton).
And step 106, obtaining the unit price of coal, and calculating a coal saving profit value based on the unit price of coal and the coal saving amount.
For example, if the coal unit price is B yuan/ton, the coal saving profit value is B × B.
In step 107, the consumption amount of the demineralized water and the unit price of the saline water are obtained, and a washing cost value is calculated based on the consumption amount of the demineralized water and the unit price of the saline water.
For example, a complete flush consumes W tons of demineralized water, the unit price of the demineralized water is W yuan/ton, and the flushing cost value is W × W.
And 108, comparing the coal saving profit value with the washing cost value to obtain a comparison result.
And step 109, controlling the flushing system to flush the air cooling radiator in response to the coal saving benefit value being larger than the flushing cost value.
And 1010, in response to the result that the coal saving profit value is smaller than or equal to the washing cost value, re-executing the step of acquiring the operation data of the air cooling power station within the preset time length.
As a possible example, in response to the comparison result being that the coal saving benefit value is less than or equal to the washing cost value, which indicates that the air-cooled radiator cannot be washed, the operation data for the next 24 hours is acquired, i.e., the step 102 is continued.
According to the commissioning method of the coal-electric air-cooling flushing system, the operation data of the air-cooling power station within the preset time length is obtained by responding to the end of flushing of the air-cooling radiator, wherein the operation data comprises air temperature data of the air-cooling radiator, the power generation load value of the coal-fired air-cooling generator set is obtained, the overall heat exchange coefficient of the air-cooling radiator corresponding to the power generation load value is determined, and the first operation backpressure value of the flushed air-cooling radiator is determined based on the overall heat exchange coefficient and the air temperature data of the air-cooling radiator; calculating a coal saving amount based on the operation data, the power generation load value and the first operation backpressure value, obtaining a coal unit price, calculating a coal saving profit value based on the coal unit price and the coal saving amount, obtaining a desalted water consumption amount and a brine unit price, and calculating a washing cost value based on the desalted water consumption amount and the brine unit price; the coal saving profit value and the washing cost value are compared to obtain a comparison result, and the washing system is controlled to wash the air-cooled radiator in response to the comparison result that the coal saving profit value is larger than the washing cost value, so that the washing time of the air-cooled radiator can be accurately determined, the washing cost is effectively saved, and the washing efficiency of the air-cooled radiator is improved.
In order to realize the above embodiment, the application provides a coal electric air cooling rinse-system commissioning device.
Fig. 2 is a block diagram of a device for commissioning a coal electric air-cooling flushing system according to an embodiment of the present application. As shown in fig. 2, the apparatus includes:
the first acquisition module 201 is used for responding to the end of flushing the air-cooled radiator and acquiring the operation data of the air-cooled power station within a preset time length; the operation data comprises air temperature data of the air cooling radiator;
the second obtaining module 202 is used for obtaining a power generation load value of the coal-fired air-cooled generator unit and determining the total heat exchange coefficient of the air-cooled radiator corresponding to the power generation load value;
the determining module 203 is used for determining a first running backpressure value of the air-cooled radiator after flushing based on the overall heat exchange coefficient and the air temperature data of the air-cooled radiator;
the first calculation module 204 is used for calculating the coal saving amount based on the operation data, the power generation load value and the first operation backpressure value;
a second calculating module 205, configured to obtain a coal unit price, and calculate a coal saving profit value based on the coal unit price and a coal saving amount;
a third calculation module 206 for obtaining the consumption amount of the desalted water and the unit price of the brine, and calculating a washing cost value based on the consumption amount of the desalted water and the unit price of the brine;
a comparison module 207 for comparing the coal saving profit value with the washing cost value to obtain a comparison result;
and the control module 208 is used for controlling the flushing system to flush the air-cooled radiator in response to the comparison result that the coal saving profit value is greater than the flushing cost value.
The operation data also comprises operation duration corresponding to the power generation load value, operation frequency of the air cooling motor and a second operation backpressure value; and the second operation backpressure value is the operation backpressure value of the air cooling radiator in the state of not flushing.
According to one embodiment of the present application, the air temperature data includes an air cooling fan inlet average air temperature and an air cooling fan outlet average air temperature.
According to one embodiment of the application, the average air temperature of the inlet of the air cooling fan is obtained by calculating an average value through the acquired multiple inlet air temperatures; the air temperature of the plurality of inlets is the air temperature of the air side inlet of the air-cooled radiator at different positions;
the average air temperature of the outlet of the air cooling fan is obtained by calculating the average value of the obtained multiple outlet air temperatures; the air temperature of the outlets is the air temperature of the air side outlet of the air cooling radiator at different positions.
According to an embodiment of the application, the apparatus further comprises a calculation module 209, the calculation module 209 comprising:
the dividing submodule is used for acquiring a rated power generation load value, dividing operation intervals of a plurality of power generation loads based on the rated power generation load value, and determining the interval power generation load values of the operation intervals of the plurality of power generation loads;
the obtaining submodule is used for responding to the end of flushing of the air-cooled radiator and obtaining sample air temperature data of the air-cooled radiator;
the first determining submodule is used for acquiring a sample power generation load value, determining an operation interval corresponding to the sample power generation load value and determining an interval power generation load value corresponding to the sample power generation load value;
and the calculation submodule is used for calculating the total heat exchange coefficient of the air-cooled radiator corresponding to the interval power generation load value based on the sample wind temperature data of the air-cooled radiator and the interval power generation load value corresponding to the sample power generation load value.
According to one embodiment of the application, the second obtaining module comprises:
the second determining submodule is used for determining an operation interval corresponding to the power generation load value based on the power generation load value;
and the third determining submodule is used for determining the total heat exchange coefficient of the air cooling radiator corresponding to the power generation load value based on the operation interval corresponding to the power generation load value.
According to the commissioning device of the coal-electric air-cooling flushing system, the operation data of the air-cooling power station within the preset time length is obtained by responding to the end of flushing of the air-cooling radiator, wherein the operation data comprises air temperature data of the air-cooling radiator, the power generation load value of the coal-fired air-cooling generator set is obtained, the overall heat exchange coefficient of the air-cooling radiator corresponding to the power generation load value is determined, and the first operation backpressure value of the flushed air-cooling radiator is determined based on the overall heat exchange coefficient and the air temperature data of the air-cooling radiator; calculating a coal saving amount based on the operation data, the power generation load value and the first operation backpressure value, obtaining a coal unit price, calculating a coal saving profit value based on the coal unit price and the coal saving amount, obtaining a desalted water consumption amount and a brine unit price, and calculating a washing cost value based on the desalted water consumption amount and the brine unit price; the coal saving profit value and the washing cost value are compared to obtain a comparison result, and the washing system is controlled to wash the air-cooled radiator in response to the comparison result that the coal saving profit value is larger than the washing cost value, so that the washing time of the air-cooled radiator can be accurately determined, the washing cost is effectively saved, and the washing efficiency of the air-cooled radiator is improved.
According to an embodiment of the present application, a computer device and a readable storage medium are also provided.
Fig. 3 is a block diagram of a computer device for implementing an embodiment of the present application. Computer devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The computer device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application that are described and/or claimed herein.
As shown in fig. 3, the computer apparatus includes: one or more processors 301, memory 302, and interfaces for connecting the various components, including high-speed interfaces and low-speed interfaces. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the computer device, including instructions stored in or on the memory to display graphical information of a GUI on an external input/output apparatus (such as a display device coupled to the interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple computer devices may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system). In fig. 3, one processor 301 is taken as an example.
The memory 302 is a non-transitory computer readable storage medium, and can be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to a fuel-resistant system leak warning method in the embodiment of the present application (for example, the first obtaining module 201, the second obtaining module 202, the first determining module 203, and the first calculating module 204 shown in fig. 2). The processor 301 executes various functional applications and data processing of the server by running non-transitory software programs, instructions and modules stored in the memory 302, so as to implement a fuel-resistant system leakage early warning method in the above method embodiments.
The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by use of the computer device according to the embodiment of the present application, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 302 may optionally include memory located remotely from processor 301, which may be connected to a computer device of an embodiment of the present application via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The computer device of the embodiment of the application may further include: an input device 303 and an output device 304. The processor 301, the memory 302, the input device 303 and the output device 304 may be connected by a bus or other means, and fig. 3 illustrates the connection by a bus as an example.
The input device 303 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the computer apparatus of the embodiments of the present application, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, a pointing stick, one or more mouse buttons, a track ball, a joystick, or other input devices. The output devices 304 may include a display device, auxiliary lighting devices (e.g., LEDs), and haptic feedback devices (e.g., vibrating motors), among others. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.
Various implementations of the systems and techniques described here can be realized in digital electronic circuitry, integrated circuitry, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
These computer programs (also known as programs, software applications, or code) include machine instructions for a programmable processor, and may be implemented using high-level procedural and/or object-oriented programming languages, and/or assembly/machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The Server can be a cloud Server, also called a cloud computing Server or a cloud host, and is a host product in a cloud computing service system, so as to solve the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service ("Virtual Private Server", or simply "VPS").
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present application may be executed in parallel, sequentially, or in different orders, and the present invention is not limited thereto as long as the desired results of the technical solutions disclosed in the present application can be achieved.
The above-described embodiments should not be construed as limiting the scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A commissioning method of a coal-electric air-cooling flushing system, characterized by comprising:
responding to the end of flushing of the air-cooled radiator, and acquiring operation data of the air-cooled power station within a preset time length; the operation data comprises air temperature data of the air-cooled radiator;
acquiring a power generation load value of a coal-fired air-cooled generator unit, and determining the total heat exchange coefficient of an air-cooled radiator corresponding to the power generation load value;
determining a first running back pressure value of the air-cooled radiator after flushing based on the total heat exchange coefficient of the air-cooled radiator and the air temperature data;
calculating a coal saving amount based on the operation data, the power generation load value and the first operation backpressure value;
obtaining the unit price of coal, and calculating a coal saving profit value based on the unit price of coal and the coal saving amount;
acquiring the consumption amount of the desalted water and the unit price of the brine, and calculating a washing cost value based on the consumption amount of the desalted water and the unit price of the brine;
comparing the coal saving profit value with the washing cost value to obtain a comparison result;
and controlling a flushing system to flush the air cooling radiator in response to the comparison result that the coal saving profit value is larger than the flushing cost value.
2. The method of claim 1, wherein the operation data further comprises an operation duration, an air-cooled motor operation frequency, a second operation backpressure value corresponding to the power generation load value; and the second operation backpressure value is the operation backpressure value of the air cooling radiator in the state of not flushing.
3. The method of claim 1, wherein the air temperature data includes an air-cooled fan inlet average air temperature and an air-cooled fan outlet average air temperature.
4. The method as claimed in claim 3, wherein the average air temperature at the outlet of the air-cooling fan is obtained by calculating an average value of the obtained multiple outlet air temperatures; and the outlet air temperatures are air temperatures of different positions of an air side outlet of the air cooling radiator.
5. The method of claim 1, wherein the air-cooled heat sink overall heat transfer coefficient is obtained by:
obtaining a rated power generation load value;
dividing operation sections of a plurality of power generation loads based on the rated power generation load value, and determining section power generation load values of the operation sections of the plurality of power generation loads;
obtaining sample air temperature data of the air-cooled radiator in response to the end of flushing of the air-cooled radiator;
acquiring a sample power generation load value, and determining an operation interval corresponding to the sample power generation load value so as to determine an interval power generation load value corresponding to the sample power generation load value;
and calculating the total heat exchange coefficient of the air cooling radiator corresponding to the interval power generation load value based on the sample air temperature data of the air cooling radiator and the interval power generation load value corresponding to the sample power generation load value.
6. The method of claim 5, wherein said determining an air-cooled radiator overall heat transfer coefficient corresponding to said power generation load value comprises:
determining an operation section corresponding to the power generation load value based on the power generation load value;
and determining the total heat exchange coefficient of the air cooling radiator corresponding to the power generation load value based on the operation interval corresponding to the power generation load value.
7. The utility model provides a coal electricity air cooling rinse-system puts into operation device which characterized in that, the device includes:
the first acquisition module is used for responding to the end of flushing of the air-cooled radiator and acquiring the operation data of the air-cooled power station within a preset time length; the operation data comprises air temperature data of the air-cooled radiator;
the second acquisition module is used for acquiring the power generation load value of the coal-fired air-cooled generator unit and determining the total heat exchange coefficient of the air-cooled radiator corresponding to the power generation load value;
the first determining module is used for determining a first running back pressure value of the air-cooled radiator after flushing based on the total heat exchange coefficient of the air-cooled radiator and the air temperature data;
the first calculation module is used for calculating coal saving quantity based on the operation data, the power generation load value and the first operation back pressure value;
the second calculation module is used for acquiring the unit price of coal and calculating a coal saving profit value based on the unit price of coal and the coal saving amount;
a third calculation module for obtaining the consumption of the desalted water and the unit price of the brine, and calculating a washing cost value based on the consumption of the desalted water and the unit price of the brine;
the comparison module is used for comparing the coal saving profit value with the washing cost value to obtain a comparison result;
and the control module is used for controlling a flushing system to flush the air cooling radiator in response to the comparison result that the coal saving profit value is larger than the flushing cost value.
8. A computer device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-6.
9. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of any one of claims 1-6.
10. A computer program product comprising a computer program which, when executed by a processor, implements the method of any one of claims 1 to 6.
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