Thermal power generation enterprise benefit control method, device and equipment

Abstract

The invention provides a thermal power generation enterprise benefit control method, device and equipment. The method comprises the steps that the coal inventory of a coal yard in a thermal power generation enterprise is obtained through online laser coal inventory; predicting the predicted generating capacity of the thermal power generation enterprise in a preset time period; obtaining predicted coal consumption of coal in the coal yard based on the predicted generating capacity; determining the coal purchase amount of the coal yard based on the coal inventory amount and the predicted coal consumption amount; monitoring a coal consumption result of coal in the coal yard; adjusting the coal purchase amount based on the coal consumption result to obtain an adjusted coal purchase amount; determining the power generation cost of the thermal power generation enterprise for completing preset power generation; determining the power generation income of the thermal power generation enterprise for completing the preset power generation amount based on the time-phased electricity price and the power generation cost; and determining the purchase cost of the coal adjustment purchase amount and the electric quantity marketing quotation based on the power generation income to control the benefit of the thermal power generation enterprise.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power generation, and in particular to a method, device and equipment for controlling the benefits of a thermal power generation enterprise. Background Art

[0002] At present, thermal power generation is one of the main ways of power generation, and coal is also the main fuel for thermal power generation.

[0003] When thermal power generation companies purchase coal, they usually make purchase plans based on the coal inventory in their own coal yards. However, the coal consumption of thermal power generation companies in different months or seasons is generally different. Therefore, a single purchase plan based on coal inventory is likely to lead to too much or too little coal purchase, affecting the company's benefits. In addition, thermal power generation companies generally judge the coal inventory in their own coal yards based on the experience of technical personnel, resulting in inaccurate coal inventory, which is also likely to lead to unreasonable purchase plans, affecting the company's benefits. Summary of the invention

[0004] The present invention provides a control method, device and equipment for the benefits of a thermal power generation enterprise, which are used to solve the technical problems in the prior art that a thermal power generation enterprise cannot accurately detect the coal inventory in a coal yard and cannot effectively expand the benefits of the enterprise.

[0005] In one aspect, the present invention provides a method for controlling the benefits of a thermal power generation enterprise, comprising:

[0006] Use online laser coal counting to obtain the coal inventory of coal yards in thermal power generation enterprises;

[0007] Predicting the power generation of the thermal power generation enterprise within a preset time period;

[0008] Obtaining predicted coal consumption of the coal yard based on the predicted power generation;

[0009] Determining the coal purchase quantity of the coal yard based on the coal inventory and the predicted coal consumption;

[0010] monitoring coal consumption results of the coal in the coal yard;

[0011] adjusting the coal purchase quantity based on the coal consumption result to obtain an adjusted coal purchase quantity;

[0012] Determining the power generation cost of the thermal power generation enterprise to achieve the preset power generation amount;

[0013] Determine the power generation income of the thermal power generation enterprise for completing the preset power generation amount based on the time-based electricity price and the power generation cost;

[0014] The purchase cost of the adjusted coal purchase quantity and the electricity marketing quotation are determined based on the power generation income to control the efficiency of the thermal power generation enterprise.

[0015] According to a method for controlling the benefits of a thermal power generation enterprise provided by the present invention, the method of using online laser coal counting to obtain the coal inventory of a coal field in the thermal power generation enterprise comprises:

[0016] Using online laser coal counting to obtain coal counting data of a coal yard in a thermal power generation enterprise, wherein the coal counting data includes coal position, coal volume and coal density in the coal yard;

[0017] Obtaining a coal inventory amount of the coal based on the coal volume and the coal density;

[0018] 3D map data of the coal yard is generated based on the coal location and the coal inventory; the 3D map data is used to reflect the coal location, coal volume and coal pile shape of the coal yard.

[0019] According to a method for controlling the benefits of a thermal power generation enterprise provided by the present invention, the step of determining the power generation cost of the thermal power generation enterprise to complete the preset power generation comprises:

[0020] monitoring the amount of boiler coal entering each boiler of the thermal power generation enterprise and the ratio of each type of coal contained in the boiler coal amount;

[0021] Based on the prices of the various types of coal, the cost of coal fed into each boiler is obtained;

[0022] Determine the auxiliary cost of auxiliary materials corresponding to the boiler coal amount of each boiler; wherein the auxiliary materials at least include the amount of ammonia injection, the amount of limestone, the water consumption, and the electricity consumption;

[0023] The power generation cost is determined based on the input coal cost and auxiliary costs of each of the boilers.

[0024] According to a method for controlling the benefits of a thermal power generation enterprise provided by the present invention, when the purchased coal is loaded into the coal yard by a coal vehicle, the method further comprises:

[0025] Counting the coal quantity purchased by the coal vehicle, the coal quantity to be unloaded, and the coal quantity unloaded, and tracking the stacking location of the unloaded coal;

[0026] Determine the sum of the amount of coal to be unloaded and the amount of coal already unloaded to obtain the actual amount of coal arriving at the plant;

[0027] Compare the actual coal quantity delivered to the plant with the purchased coal quantity delivered to the plant to determine the coal error amount;

[0028] Monitor the coal storage location, coal type, coal quantity corresponding to the coal type, and coal quality corresponding to the coal type in the coal yard at the current moment;

[0029] Determine the coal structure composition in the coal yard based on the coal type at each of the coal storage locations, the coal quantity corresponding to the coal type, and the coal quality corresponding to the coal type;

[0030] Obtain the coal structure required by the boiler for blending and burning;

[0031] When the coal structure composition in the coal yard does not match the coal combustion structure, output a correction plan for adjusting the coal purchase quantity;

[0032] The efficiency of the thermal power generation enterprise is controlled based on the coal error amount and the correction plan.

[0033] According to a method for controlling the benefits of a thermal power generation enterprise provided by the present invention, the control method further comprises:

[0034] Obtaining the coal-compounding structure of the boiler;

[0035] Based on the coal-compounding and blending coal burning structure of the boiler, a type of coal corresponding to the coal-compounding structure is added to a mixed coal bunker corresponding to the boiler; wherein the shape of the mixed coal bunker is funnel-shaped, and an outlet is provided at the bottom;

[0036] Obtaining the actual coal blending ratio of each type of coal leaked from the outlet of the mixed coal bin;

[0037] The coal mixing bin is adjusted based on the actual coal blending ratio of each type of coal.

[0038] According to a method for controlling the benefits of a thermal power generation enterprise provided by the present invention, the mixed coal bin has a size scale for indicating the coal position, and the mixed coal bin is adjusted based on the actual coal blending ratio of each type of coal, including:

[0039] Calculate the coal blending ratio of each type of coal reduced in the mixed coal bin according to the size scale;

[0040] Determining whether the actual coal blending ratio is consistent with the calculated coal blending ratio;

[0041] If not, it indicates that the mixed coal bin is blocked by coal, and control is performed to clear the mixed coal bin.

[0042] According to a method for controlling the benefits of a thermal power generation enterprise provided by the present invention, if the actual coal blending ratio is consistent with the calculated coal blending ratio, the coal leaked from the coal mixing bin is controlled to be used by the boiler.

[0043] According to a method for controlling the benefits of a thermal power generation enterprise provided by the present invention, the actual coal blending ratio of each type of coal leaked from the outlet of the mixed coal bin is obtained, comprising:

[0044] The actual coal blending ratio of each type of coal leaking out of the mixed coal bin outlet is obtained by online laser coal counting.

[0045] On the other hand, the present invention also provides a control device for the benefits of a thermal power generation enterprise, comprising:

[0046] Coal inventory acquisition module, used to obtain the coal inventory of the coal yard in the thermal power generation enterprise by using online laser coal counting;

[0047] A power generation prediction module, used to predict the power generation of the thermal power generation enterprise within a preset time period;

[0048] A coal consumption prediction module, used for obtaining the predicted coal consumption of the coal yard based on the predicted power generation;

[0049] A coal purchasing module, used for determining the coal purchasing quantity of the coal yard based on the coal inventory and the predicted coal consumption;

[0050] A monitoring module, used for monitoring the coal consumption result of the coal in the coal yard;

[0051] A purchase adjustment module, used for adjusting the coal purchase quantity based on the coal consumption result to obtain an adjusted coal purchase quantity;

[0052] A cost determination module, used to determine the power generation cost of the thermal power generation enterprise to complete the preset power generation;

[0053] A revenue determination module, used to determine the power generation revenue of the thermal power generation enterprise for completing the preset power generation amount based on the time-based electricity price and the power generation cost;

[0054] The benefit control module is used to determine the purchase cost of the adjusted coal purchase quantity and the electricity marketing quotation based on the power generation income, so as to control the benefit of the thermal power generation enterprise.

[0055] On the other hand, the present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, a method for controlling the efficiency of a thermal power generation enterprise as described in any one of the above-mentioned methods is implemented.

[0056] The control method, device and equipment of the benefits of thermal power generation enterprises provided by the present invention obtain the coal inventory of the coal yard of the thermal power generation enterprise by using online laser coal disc. Predict the predicted power generation of the thermal power generation enterprise within a preset time period; obtain the predicted coal consumption of the coal in the coal yard based on the predicted power generation; determine the coal purchase quantity of the coal yard based on the coal inventory and the predicted coal consumption; monitor the coal consumption results of the coal in the coal yard; adjust the coal purchase quantity based on the coal consumption results to obtain the adjusted coal purchase quantity; determine the power generation cost of the thermal power generation enterprise to complete the preset power generation; determine the power generation income of the thermal power generation enterprise to complete the preset power generation based on the time-divided electricity price and power generation cost; determine the purchase cost of the adjusted coal purchase quantity and the electricity marketing quotation based on the power generation income, so as to control the benefits of the thermal power generation enterprise. The coal inventory quantity obtained by online laser coal counting in this embodiment is very accurate. The coal purchase quantity of the coal yard is determined based on the coal inventory quantity and the predicted coal consumption, thereby optimizing the inventory. The power generation income of completing the preset power generation can be accurately determined based on the time-sharing electricity price and power generation cost, and all-round management of the purchasing and marketing departments is realized, reducing the situation of each department acting independently, thereby reducing the cost of the enterprise, thereby expanding the benefits of the enterprise, that is, improving the marginal benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 It is a flow chart of a method for controlling the benefits of a thermal power generation enterprise provided by an embodiment of the present invention;

[0059] Figure 2 It is a schematic diagram of generating 3D map data of a coal yard based on coal location and coal inventory provided by an embodiment of the present invention;

[0060] Figure 3 It is a schematic diagram of the structure of a control device for the benefits of a thermal power generation enterprise provided by an embodiment of the present invention;

[0061] Figure 4 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] Figure 1 FIG. 1 is a flow chart of a method for controlling the benefits of a thermal power generation enterprise provided by an embodiment of the present invention. Figure 1 As shown, the control method of the benefits of thermal power generation enterprises provided by the embodiment of the present invention can be executed by a computer, a mobile phone or a smart wearable device. The method mainly includes the following steps:

[0064] 101. Use online laser coal counting to obtain the coal inventory of the coal yard in the thermal power generation enterprise.

[0065] In this step, the online laser coal counting system can be composed of hardware equipment such as the XKCON Xiangkong laser scanner XKCON-LS250-01. The scanner can be installed on the top of the coal yard or mounted on the track inspection robot. This installation method ensures that the scanner can cover the entire coal yard area and achieve comprehensive data collection. Compared with the manual coal counting method, this step optimizes the personnel structure, reduces the labor intensity of personnel, and greatly improves the accuracy and efficiency of measuring coal inventory. Coal inventory can refer to the weight of coal.

[0066] 102. Forecast the power generation of thermal power generation enterprises within a preset time period.

[0067] In this step, the preset time period may be a month, a quarter, or other time periods, which is not specifically limited in this embodiment. The predicted power generation within the preset time period may be predicted by the actual power generation of the historical time period corresponding to the preset time period. For example, if the preset time period is July of the current year, the power generation in July of the previous year may be used as the power generation in July of the current year.

[0068] 103. The predicted coal consumption of the coal yard is obtained based on the predicted power generation.

[0069] In this step, the equipment parameters of the boiler and generator set of the thermal power generation enterprise are all known quantities. According to the equipment parameters, the corresponding relationship between the power generation and the coal consumption can be known. Therefore, the predicted coal consumption of the coal in the coal yard can be obtained according to the predicted power generation. The corresponding relationship between the power generation and the coal consumption can also be obtained according to the historical power generation and the historical coal consumption. The coal consumption in the historical time period corresponding to the preset time period can also be used as the predicted coal consumption. For example, if the preset time period is July of the current year, the coal consumption in July of the previous year can be used as the predicted coal consumption in July of the current year.

[0070] 104. Determine the coal purchase quantity of the coal yard based on the coal inventory and predicted coal consumption.

[0071] In this step, the larger the coal inventory, the better. If the coal inventory is too large, it will lead to greater coal loss, which is equivalent to increasing the coal cost, and will also occupy a larger area, increasing the space cost. In addition, too large a coal inventory may also bring safety hazards. Therefore, in order to optimize the inventory and keep the coal inventory of the coal yard at an appropriate value, it is necessary to determine the coal purchase volume of the coal yard based on the coal inventory and the predicted coal consumption to avoid excessive or insufficient coal purchases.

[0072] 105. Monitor the coal consumption results of coal in the coal yard.

[0073] In this step, considering that the coal procurement process may take some time, it is necessary to monitor the coal consumption results of the coal in the coal yard. The coal consumption results may include the amount of coal corresponding to each type of coal consumed. The coal consumption results of the coal in the coal yard can be monitored using an online laser disc coal.

[0074] 106. Adjust the coal purchase quantity based on the coal consumption result to obtain the adjusted coal purchase quantity.

[0075] In this step, if a certain type of coal is consumed too much, the purchase amount of this type of coal can be increased in the coal purchase amount, and the purchase speed can be increased so that this type of coal can enter the coal yard as soon as possible. If a certain type of coal is consumed too little, the purchase speed of this type of coal can be reduced, and the time for this type of coal to enter the coal yard can be reduced to avoid increasing material costs and space occupation costs. It can be understood that the adjustment of coal purchase quantity is generally carried out before the purchase is completed or started. If the total coal purchase quantity has been completed, no further adjustment is required.

[0076] 107. Determine the power generation cost of a thermal power generation enterprise to achieve the preset power generation capacity.

[0077] In this step, mixing and burning coal of different types in a certain proportion is also a way to save costs. Therefore, determining the power generation cost of a thermal power generation enterprise to complete the preset power generation can specifically include: monitoring the amount of boiler coal entering each boiler of the thermal power generation enterprise and the proportion of each type of coal contained in the boiler coal, based on the price of each type of coal, obtaining the cost of coal entering each boiler, determining the auxiliary cost of auxiliary materials corresponding to the amount of boiler coal of each boiler, and determining the power generation cost based on the cost of coal entering each boiler and the auxiliary cost. Among them, the auxiliary materials may at least include the amount of ammonia sprayed by the denitrification device, the amount of limestone, water consumption, power consumption, etc. of the desulfurization device. The power consumption may include the power consumption of the boiler and each auxiliary machine of the unit. The relevant parameters of the auxiliary materials can be read from the database of the plant-level Supervisory Information System (SIS).

[0078] 108. Determine the power generation revenue of a thermal power generation enterprise when it completes the preset power generation based on the time-based electricity price and power generation cost.

[0079] In this step, the price of electricity is not always constant. The price of electricity can change over time, or it can change in steps with the amount of electricity used. Therefore, determining the power generation revenue of a thermal power generation enterprise for completing a preset power generation based on the time-sharing electricity price and the power generation cost is more accurate than determining it based on a fixed electricity price. In addition, when determining the power generation revenue, factors such as spot trading and deep peak regulation of electricity can also be considered. Generally, the electricity sales amount can be obtained based on the total power generation and the time-sharing electricity price, and the power generation revenue can be obtained by subtracting the power generation cost. When considering the power generation revenue, the cost of state maintenance and / or operation mode optimization of thermal power generation enterprises can also be considered.

[0080] 109. Determine the purchase cost and electricity marketing quotation of the adjusted coal purchase volume based on the power generation income to control the benefits of thermal power generation enterprises. In this step, all-round management of the purchasing and marketing departments is achieved, reducing the situation of each department acting independently, which is also conducive to improving the benefits of the enterprise. It can be understood that when the power generation income is generally low, the purchase cost can be reduced as much as possible and the electricity marketing quotation can be increased; when the power generation income is generally high, the purchase cost can still be reduced as much as possible, and the electricity marketing quotation can be maintained unchanged for humane considerations.

[0081] In this embodiment, the coal inventory of the coal yard in the thermal power generation enterprise is obtained by online laser coal counting. The predicted power generation of the thermal power generation enterprise in the preset time period is predicted; the predicted coal consumption of the coal in the coal yard is obtained based on the predicted power generation; the coal purchase quantity of the coal yard is determined based on the coal inventory and the predicted coal consumption; the coal consumption results of the coal in the coal yard are monitored; the coal purchase quantity is adjusted based on the coal consumption results to obtain the adjusted coal purchase quantity; the power generation cost of the thermal power generation enterprise to complete the preset power generation is determined based on the time-sharing electricity price and power generation cost; the purchase cost and electricity marketing quotation of the adjusted coal purchase quantity are determined based on the power generation income to control the benefits of the thermal power generation enterprise. The coal inventory obtained by online laser coal counting in this embodiment is very accurate. The coal purchase quantity of the coal yard is determined based on the coal inventory and the predicted coal consumption, and the inventory is optimized. The power generation income of the preset power generation can be accurately determined based on the time-sharing electricity price and power generation cost, and the all-round management of the purchasing part and the marketing department is realized, reducing the situation of each doing its own thing, thereby reducing the cost of the enterprise, thereby expanding the benefits of the enterprise, that is, improving the marginal benefits of the enterprise.

[0082] In one embodiment of this specification, using online laser coal counting to obtain the coal inventory of a coal yard in a thermal power generation enterprise includes:

[0083] The coal panning data of the coal yard in the thermal power generation enterprise is obtained by using online laser coal panning, where the coal panning data includes the coal position, coal volume and coal density in the coal yard;

[0084] Obtaining coal inventory based on coal volume and coal density;

[0085] 3D map data of the coal yard is generated based on the coal location and coal inventory; the 3D map data is used to reflect the coal location, coal volume and coal pile shape of the coal yard.

[0086] In this embodiment, the 3D map data can be Figure 2 As shown, Figure 2 The shape and volume of each coal pile are included, and the color depth of different coal piles is different. In addition to size, coal volume also includes the shape of the coal pile. The coal inventory is obtained based on the coal volume and coal density. This coal inventory has higher accuracy than the manually counted coal inventory. The 3D map data of the coal yard is generated based on the coal location and coal inventory, which can truly reflect the location, volume and other parameters of the coal in the coal yard, and can also reflect the calorific value, ash content, heat and price of the coal. The 3D map data is equivalent to the digital twin of the overall data of the coal yard. This embodiment can accurately reflect the above-mentioned multiple parameters of the coal in the coal yard, which is conducive to controlling costs and thus increasing corporate profits. This embodiment is equivalent to establishing a digital coal yard subsystem.

[0087] In one embodiment of the present specification, when the purchased coal is loaded into the coal yard by the coal vehicle, the method further includes:

[0088] Step 1: Count the coal quantity purchased by coal vehicles, the coal quantity to be unloaded, and the coal quantity that has been unloaded, and track the stacking location of the unloaded coal;

[0089] Step 2: Determine the sum of the amount of coal to be unloaded and the amount of coal already unloaded to obtain the actual amount of coal arriving at the plant;

[0090] Step 3: Compare the actual coal quantity delivered to the factory with the purchased coal quantity to determine the coal error;

[0091] Step 4: monitor the coal storage location, coal type, coal quantity corresponding to the coal type, and coal quality corresponding to the coal type in the coal yard at the current moment;

[0092] Step 5: determine the coal structure composition in the coal yard based on the coal type at each coal storage location, the coal quantity corresponding to the coal type, and the coal quality corresponding to the coal type;

[0093] Step 6: Obtain the coal structure required by the boiler for blending and burning;

[0094] Step 7: When the coal structure composition in the coal yard does not match the coal burning structure, a correction plan for adjusting the purchase volume of output coal is provided;

[0095] Step 8: Control the benefits of thermal power generation enterprises based on coal error and correction scheme.

[0096] In this embodiment, step 1 is equivalent to fuel loading and unloading (stacking) tracking. Step 4 is equivalent to coal storage monitoring. This embodiment is equivalent to establishing a fuel full-process uninterrupted tracking subsystem. The amount of coal purchased by coal vehicles, that is, the amount of coal transported by coal vehicles to the coal yard, also represents the amount of coal purchased by thermal power generation enterprises, which is equivalent to the theoretical value. Considering that there is often a certain error between the amount of coal purchased (theoretical value) and the actual amount of coal delivered to the coal yard, and this error is difficult to determine by manual technology. Therefore, the sum of the amount of coal to be unloaded and the amount of coal already unloaded is determined to obtain the actual amount of coal coming to the plant, and the actual amount of coal coming to the plant is compared with the amount of coal purchased to the plant (theoretical value) to determine the coal error amount, which has a high accuracy, thereby maintaining the interests of the enterprise and improving the efficiency of the enterprise. In general, the intelligent fuel management platform (Lixin) can be integrated to realize the visualization of the coal loading and unloading process, monitor the real-time status of coal transport vehicles online, conduct statistical analysis on the amount of coal coming to the plant, the amount of coal to be unloaded, the amount of coal already unloaded, etc., and track the stacking position in combination with the coal panning system.

[0097] In addition, after the coal truck has unloaded all the transported coal, the coal storage location, coal type, coal quantity corresponding to the coal type, and coal quality corresponding to the coal type in the coal yard at the current moment are monitored; the coal structure composition in the coal yard is determined based on the coal type, coal quantity corresponding to the coal type, and coal quality corresponding to the coal type in each coal storage location; the coal structure required by the boiler for blending and burning is obtained; when the coal structure composition in the coal yard does not match the coal structure, a correction plan for adjusting the coal purchase quantity is output to meet the coal structure for blending and burning, which is also beneficial to improving the efficiency of thermal power generation enterprises.

[0098] In some other embodiments of this specification, it may also include: tracking the coal yard and dynamic monitoring of the coal bunker. Tracking: Real-time tracking of the status of the coal conveying program control system, marking the type of coal taken in real time, and obtaining the coal quantity, coal quality, and coal price information of the coal type in the bunker. This method is conducive to controlling the cost of the enterprise and improving the efficiency of the enterprise.

[0099] Dynamic monitoring of coal bunkers: relying on the digital coal yard subsystem (this plan) to track changes in the coal yard, the quality parameters of the coal source (based on the Lixin system search) and the price (based on the visualization system (3D map data) search) can be found out according to the coal yard evolution function data chain (coal flow operation task record), and then digital simulation is performed according to the coal yard pile and coal extraction operation task record, and the three-dimensional model of the coal yard, the coal quality composition and coal position signal of the coal entering the furnace (mixed coal bunker and raw coal bunker) are displayed in real time. The price is displayed as the average price in the mixed coal bunker (raw coal bunker), and the layered interface in the coal bunker (mixed coal bunker and raw coal bunker) is displayed in the form of a dynamic graph. This embodiment can clearly monitor the changes in the coal in the mixed coal bunker and the raw coal bunker, so as to control the amount of coal added in the mixed coal bunker and the raw coal bunker, and is also conducive to improving the efficiency of the enterprise.

[0100] The coal in the mixed coal bunker is stored on the principle of first-in-first-out. According to the coal-taking operation tasks of the coal yard and the coal from the train ditch to the automobile ditch to the mixed coal bunker, the coal storage information in the mixed coal bunker is "entered" in real time. According to the coal loading operation tasks from the mixed coal bunker to the raw coal bunker, the coal storage ratio input by the operating personnel in the three-dimensional model information management system of the coal yard and the real-time accumulated value of the belt scale are used as the basis, and the coal stored in each bunker of the mixed coal bunker is "exported" in proportion. Both "entry" and "export" operations change in real time. The mixed coal bunker can display the real-time mixed coal bunker inventory, the coal quality composition of the real-time "exported" coal, the weighted coal quality composition, etc., and display them in the form of dynamic graphics.

[0101] In one embodiment of this specification, the control method further includes:

[0102] Obtain the coal-fired structure of the boiler;

[0103] Based on the coal-compounding and blending structure of the boiler, the type of coal corresponding to the coal-compounding structure is added to the mixed coal bunker corresponding to the boiler; wherein the shape of the mixed coal bunker is funnel-shaped, and an outlet is provided at the bottom;

[0104] Obtain the actual coal blending ratio of each type of coal leaked from the outlet of the mixed coal bunker;

[0105] The mixed coal bin is adjusted based on the actual coal blending ratio of each type of coal.

[0106] In this embodiment, the process of coal entering the boiler from the coal yard is generally that the coal is transported from the coal yard to the mixed coal bunker through a belt scale according to the coal-blending and blending structure, and then leaked from the outlet of the mixed coal bunker to the belt scale, and then transported to the ordinary coal bunker (raw coal bunker) through the belt scale, and then transported from the ordinary coal bunker to the boiler through the belt scale. Add the coal type corresponding to the coal-burning structure to the mixed coal bunker corresponding to the boiler, obtain the actual coal blending ratio of each type of coal leaked from the outlet of the mixed coal bunker, and adjust the mixed coal bunker based on the actual coal blending ratio of each type of coal to ensure that the coal structure input to the boiler is the required coal-blending and blending structure, which is conducive to saving costs and improving enterprise efficiency. There can be multiple outlets for the mixed coal bunker, for example, 3, 6 or 9, etc., which are not specifically limited here. This embodiment is very suitable for raw coal bunkers.

[0107] In one embodiment of the present specification, the mixed coal bunker has a size scale for indicating the coal position (that is, for indicating the position height of the coal in the mixed coal bunker, and the coal quantity can be obtained according to the scale), and the mixed coal bunker is adjusted based on the actual coal blending ratio of each type of coal, including:

[0108] Calculate the coal blending ratio of each type of coal reduced in the mixed coal bunker according to the size scale (which can be regarded as a theoretical value);

[0109] Determine whether the actual coal blending ratio is consistent with the calculated coal blending ratio;

[0110] If not, it means that there is coal blockage in the mixed coal bunker, and control should be taken to clear the mixed coal bunker.

[0111] In this embodiment, the coal in the mixed coal bunker complies with the first-in-first-out principle. According to the coal-taking operation task of the coal yard and the coal-loading operation task of the mixed coal bunker, the coal storage information of the mixed coal bunker is "entered" in real time. According to the coal loading operation task of the mixed coal bunker to the raw coal bunker, the coal loading ratio input by the operator in the coal yard three-dimensional model information management system and the real-time accumulated value of the belt scale are used as the basis, and the coal stored in each bunker of the mixed coal bunker is "exported" in proportion; both the "entry" and "export" operations are real-time changes, and the mixed coal bunker can display the real-time mixed coal bunker inventory, the coal quality components of the real-time "out" coal, the weighted coal quality components, etc., and display them in the form of dynamic graphs. Therefore, if the actual coal blending ratio is inconsistent with the calculated coal blending ratio, it means that the mixed coal bunker is blocked, and the coal types in the mixed coal bunker are unblocked, so as to obtain the required coal-blending and burning coal structure, which is beneficial to the production of the enterprise and improves efficiency. In other words, the coal blending ratio of the coal in the mixed coal bunker can be reversed according to the actual coal blending ratio of the coal leaked from the mixed coal bunker.

[0112] In one embodiment of the present specification, if the actual coal blending ratio is consistent with the calculated coal blending ratio, the coal leaking out of the coal mixing bin is controlled to be used by the boiler.

[0113] In this embodiment, if the actual coal blending ratio is consistent with the calculated coal blending ratio, it means that the coal leaked from the mixed coal bunker outlet meets the coal blending and burning structure of the boiler and can be used. Generally, the coal in the mixed coal bunker can be first transported to the raw coal bunker, and then transported from the raw coal bunker to the boiler.

[0114] In one embodiment of the present specification, obtaining the actual coal blending ratio of each type of coal leaked from the outlet of the mixed coal bunker includes:

[0115] The actual coal blending ratio of each type of coal leaking out of the mixed coal bin outlet is obtained by online laser coal counting.

[0116] In this embodiment, the actual coal blending ratio of each type of coal leaking out of the mixed coal bin outlet is obtained by online laser coal counting, which is very accurate and conducive to cost control.

[0117] In some other embodiments of this specification, when the coal bunker is a raw coal bunker, the control method further includes:

[0118] Obtain the actual weight of coal leaked from the outlet of the mixed coal bunker;

[0119] Adjust the raw coal bunker based on actual coal weight.

[0120] Specifically, the calculated coal weight of the coal reduced in the raw coal bunker is calculated according to the size scale of the raw coal bunker;

[0121] Determine whether the actual coal weight is consistent with the calculated coal weight;

[0122] If not, it means that the raw coal bunker is blocked by coal and control is needed to clear the raw coal bunker.

[0123] If so, control the coal leaking from the raw coal bunker for use in the boiler.

[0124] In this embodiment, the actual weight of the coal leaked from the outlet of the raw coal bin can be obtained by using a belt scale, which is very simple and convenient.

[0125] In some other embodiments, when determining the benefits of a thermal power generation enterprise, the enterprise's heat supply, steam supply, fly ash and other operations management may also be included in the benefit calculation scheme.

[0126] In some other embodiments of this specification, the control method may further include:

[0127] 1. Real-time full cost analysis: It can track the types and proportions of coal entering the furnace in real time (individual identification method), associate the quality and price of each single coal, read the real-time coal supply, and thus calculate the real-time positive balance fuel cost entering the furnace; read the unit load, coal supply of the coal feeder, ammonia injection of the denitrification device, limestone amount of the desulfurization device, water consumption, power consumption of each auxiliary machine from the SIS database in real time, and calculate other variable operating costs.

[0128] 2. Coal cost analysis: Cost forecast and comprehensive analysis of stored coal or designated coal types, including comparison of coal types, coal quality, coal prices, boiler efficiency, plant power consumption rate, by-products, power generation costs, power supply costs, etc.

[0129] 3. Blended coal cost analysis: Based on the coal quality data of the blended coal, the cost economics of a certain blending scheme is predicted and calculated, including the prediction of boiler efficiency, plant power consumption rate, and coal consumption for power generation.

[0130] 4. Spot trading marginal benefit data: When implementing time-of-day electricity prices, the fuel cost is blended into the comprehensive benefits of the monthly time-of-day electricity price, deep peak regulation, two detailed rules, etc. to evaluate the economic efficiency (marginal benefit) of each unit's power generation; guide the analysis and rectification of important issues that affect the comprehensive benefits.

[0131] 5. Monthly and medium- and long-term cost calculation: The platform is required to provide monthly and medium- and long-term (quarterly and annual) cost calculation functions to solve the lag and inaccuracy of monthly cost forecasts. Based on the real-time cost module, the monthly and medium- and long-term costs and benefits of power generation companies are calculated.

[0132] 6. Real-time (daily) cost and profit forecast: Establish a "profit rate" model by comprehensively using real-time electricity cost, real-time load, electricity price, etc.; combine load planning, blending planning, etc. to achieve cost and profit rate and profit forecast.

[0133] 7. Monthly and medium- and long-term cost and profit forecasts: Based on the power plant's electricity plan and coal purchasing plan, combined with the long-term coal price forecast results, the monthly and medium- and long-term coal costs of each power generation company are forecasted. The forecast results provide data support for plant-level production and power marketing, and are compared with the annual budget values ​​for synchronous forecasting, to promptly assist plant-level decision-making to correct the subsequent production and operation indicators and targets and propose adjustment strategies.

[0134] The above-mentioned methods are conducive to accurate cost control, thereby expanding the benefits of the enterprise.

[0135] Based on the same general inventive concept, the present invention also protects a control device for the benefits of a thermal power generation enterprise. Figure 31 is a schematic diagram of the structure of the control device for the benefits of a thermal power generation enterprise provided by an embodiment of the present invention. The control device for the benefits of a thermal power generation enterprise provided by the present invention is described below. The control device for the benefits of a thermal power generation enterprise described below and the control method for the benefits of a thermal power generation enterprise described above can be referred to each other. The control device for the benefits of a thermal power generation enterprise includes a coal inventory acquisition module 201, a power generation prediction module 202, a coal consumption prediction module 203, a coal procurement module 204, a monitoring module 205, a procurement adjustment module 206, a cost determination module 207, a revenue determination module 208 and a benefit control module 209.

[0136] The coal inventory acquisition module 201 is used to acquire the coal inventory of the coal yard in the thermal power generation enterprise by using online laser coal counting;

[0137] The power generation prediction module 202 is used to predict the power generation of the thermal power generation enterprise within a preset time period;

[0138] The coal consumption prediction module 203 is used to obtain the predicted coal consumption of the coal yard based on the predicted power generation;

[0139] The coal purchasing module 204 is used to determine the coal purchasing quantity of the coal yard based on the coal inventory and the predicted coal consumption;

[0140] The monitoring module 205 is used to monitor the coal consumption result of the coal in the coal yard;

[0141] The purchase adjustment module 206 is used to adjust the coal purchase quantity based on the coal consumption result to obtain the coal adjustment purchase quantity;

[0142] The cost determination module 207 is used to determine the power generation cost of the thermal power generation enterprise to complete the preset power generation;

[0143] The revenue determination module 208 is used to determine the power generation revenue of the thermal power generation enterprise for completing the preset power generation amount based on the time-divided electricity price and the power generation cost;

[0144] The benefit control module 209 is used to determine the purchase cost of the adjusted coal purchase quantity and the electricity marketing quotation based on the power generation income, so as to control the benefit of the thermal power generation enterprise.

[0145] Figure 4 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0146] like Figure 4As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the control method of the efficiency of the thermal power generation enterprise.

[0147] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0148] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control methods for the benefits of thermal power generation enterprises provided by the above methods.

[0149] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the control method for the efficiency of a thermal power generation enterprise provided by the above-mentioned methods.

[0150] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0151] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling the benefits of a thermal power generation enterprise, characterized in that: include: Use online laser coal counting to obtain the coal inventory of coal yards in thermal power generation enterprises; Predicting the power generation of the thermal power generation enterprise within a preset time period; Obtaining predicted coal consumption of the coal yard based on the predicted power generation; Determining the coal purchase quantity of the coal yard based on the coal inventory and the predicted coal consumption; monitoring coal consumption results of the coal in the coal yard; adjusting the coal purchase quantity based on the coal consumption result to obtain an adjusted coal purchase quantity; Determining the power generation cost of the thermal power generation enterprise to achieve the preset power generation amount; Determine the power generation income of the thermal power generation enterprise for completing the preset power generation amount based on the time-based electricity price and the power generation cost; The purchase cost of the adjusted coal purchase quantity and the electricity marketing quotation are determined based on the power generation income to control the efficiency of the thermal power generation enterprise.

2. The method for controlling the benefits of a thermal power generation enterprise according to claim 1, characterized in that: The method of obtaining the coal inventory of the coal yard of a thermal power generation enterprise by using online laser coal counting includes: Using online laser coal counting to obtain coal counting data of a coal yard in a thermal power generation enterprise, wherein the coal counting data includes coal position, coal volume and coal density in the coal yard; Obtaining a coal inventory amount of the coal based on the coal volume and the coal density; 3D map data of the coal yard is generated based on the coal location and the coal inventory; the 3D map data is used to reflect the coal location, coal volume and coal pile shape of the coal yard.

3. The method for controlling the benefits of a thermal power generation enterprise according to claim 1, characterized in that: The step of determining the power generation cost of the thermal power generation enterprise to complete the preset power generation volume includes: monitoring the amount of boiler coal entering each boiler of the thermal power generation enterprise and the ratio of each type of coal contained in the boiler coal amount; Based on the prices of the various types of coal, the cost of coal fed into each boiler is obtained; Determine the auxiliary cost of auxiliary materials corresponding to the boiler coal amount of each boiler; wherein the auxiliary materials at least include the amount of ammonia injection, the amount of limestone, the water consumption, and the electricity consumption; The power generation cost is determined based on the input coal cost and auxiliary costs of each of the boilers.

4. The method for controlling the benefits of a thermal power generation enterprise according to claim 1, characterized in that: When the purchased coal is loaded into the coal yard by a coal vehicle, the method further comprises: Counting the coal quantity purchased by the coal vehicle, the coal quantity to be unloaded, and the coal quantity unloaded, and tracking the stacking location of the unloaded coal; Determine the sum of the amount of coal to be unloaded and the amount of coal already unloaded to obtain the actual amount of coal arriving at the plant; Compare the actual coal quantity delivered to the plant with the purchased coal quantity delivered to the plant to determine the coal error amount; Monitor the coal storage location, coal type, coal quantity corresponding to the coal type, and coal quality corresponding to the coal type in the coal yard at the current moment; Determine the coal structure composition in the coal yard based on the coal type at each of the coal storage locations, the coal quantity corresponding to the coal type, and the coal quality corresponding to the coal type; Obtain the coal structure required by the boiler for blending and burning; When the coal structure composition in the coal yard does not match the coal combustion structure, output a correction plan for adjusting the coal purchase quantity; The efficiency of the thermal power generation enterprise is controlled based on the coal error amount and the correction plan.

5. The method for controlling the benefits of a thermal power generation enterprise according to claim 4, characterized in that: The control method further comprises: Obtaining the coal-compounding structure of the boiler; Based on the coal-compounding and blending coal burning structure of the boiler, a type of coal corresponding to the coal-compounding structure is added to a mixed coal bunker corresponding to the boiler; wherein the shape of the mixed coal bunker is funnel-shaped, and an outlet is provided at the bottom; Obtaining the actual coal blending ratio of each type of coal leaked from the outlet of the mixed coal bin; The coal mixing bin is adjusted based on the actual coal blending ratio of each type of coal.

6. The method for controlling the benefits of a thermal power generation enterprise according to claim 5, characterized in that: The mixed coal bin has a size scale for indicating the coal position, and the mixed coal bin is adjusted based on the actual coal blending ratio of each type of coal, including: Calculate the coal blending ratio of each type of coal reduced in the mixed coal bin according to the size scale; Determining whether the actual coal blending ratio is consistent with the calculated coal blending ratio; If not, it indicates that the mixed coal bin is blocked by coal, and control is performed to clear the mixed coal bin.

7. The method for controlling the benefits of a thermal power generation enterprise according to claim 6, characterized in that: If the actual coal blending ratio is consistent with the calculated coal blending ratio, the coal leaking out of the coal mixing bin is controlled to be used by the boiler.

8. The method for controlling the benefits of a thermal power generation enterprise according to claim 5, characterized in that: The obtaining of the actual coal blending ratio of each type of coal leaked from the outlet of the mixed coal bunker includes: The actual coal blending ratio of each type of coal leaking out of the mixed coal bin outlet is obtained by online laser coal counting.

9. A control device for the benefits of a thermal power generation enterprise, characterized in that: include: Coal inventory acquisition module, used to obtain the coal inventory of the coal yard in the thermal power generation enterprise by using online laser coal counting; A power generation prediction module, used to predict the power generation of the thermal power generation enterprise within a preset time period; A coal consumption prediction module, used for obtaining the predicted coal consumption of the coal yard based on the predicted power generation; A coal purchasing module, used for determining the coal purchasing quantity of the coal yard based on the coal inventory and the predicted coal consumption; A monitoring module, used for monitoring the coal consumption result of the coal in the coal yard; A purchase adjustment module, used for adjusting the coal purchase quantity based on the coal consumption result to obtain an adjusted coal purchase quantity; A cost determination module, used to determine the power generation cost of the thermal power generation enterprise to complete the preset power generation; A revenue determination module, used to determine the power generation revenue of the thermal power generation enterprise for completing the preset power generation amount based on the time-based electricity price and the power generation cost; The benefit control module is used to determine the purchase cost of the adjusted coal purchase quantity and the electricity marketing quotation based on the power generation income, so as to control the benefit of the thermal power generation enterprise.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, a method for controlling the benefits of a thermal power generation enterprise as described in any one of claims 1 to 8 is implemented.

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