Temperature control method, equipment and medium for combustion system of mine car based on low temperature environment

Abstract

The present application discloses a temperature control method, device and medium for a mine car combustion system based on a low temperature environment, the method comprising: obtaining the initial temperature parameter of the warm-up, and performing a warm-up state analysis on the initial temperature parameter of the warm-up to determine the warm-up start-up data; based on the warm-up start-up data, determining the dynamic power control data of the heater through a warm-up temperature threshold analysis; obtaining the real-time flow of methanol fuel, and performing a delayed heat exchange analysis on the real-time flow of methanol fuel to obtain a first coolant flow control parameter; according to the methanol fuel storage temperature data, performing a periodic heat exchange analysis to obtain a second coolant flow control parameter; performing a proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data. The present application solves the technical problems of high warm-up energy consumption of mine cars under low temperature conditions and inaccurate temperature control of methanol fuel through the above method.

Description

Technical Field

[0001] The present application relates to the field of engine control technology, and in particular to a temperature control method, device and medium for a mine car combustion system based on a low temperature environment. Background Art

[0002] As a widely used special production vehicle, mining cars usually have unstable and difficult to control engine warm-up and subsequent operation processes in winter or extreme cold weather. Methanol has a large latent heat of evaporation, so under low temperature conditions, the evaporation rate of methanol slows down and the viscosity increases, making it difficult to form a sufficient combustible mixture, resulting in difficulty in starting the engine. Since the engine adaptation temperature range of methanol fuel for mining cars is 40~60℃, methanol fuel outside this temperature range will affect the engine's performance. In response to cold weather or low temperature environments, it is necessary to control the operating temperature of methanol fuel and the engine.

[0003] The relevant technologies for mine car engine warm-up control are relatively mature, but since the engine needs to be heated (heat exchange) during the warm-up process, a single heating device will cause a large loss of energy in the mine car, and the warm-up efficiency of the engine warm-up equipment is also low. For a continuously running engine, since its power output needs to be adjusted according to the actual operating conditions, the temperature of methanol needs to be controlled within a temperature threshold range. The adjustment methods in the existing technology cannot meet the real-time temperature control during the operation of the mine car. Summary of the invention

[0004] The embodiments of the present application provide a temperature control method, device and medium for a mine car combustion system based on a low-temperature environment, which solve the technical problems of high warm-up energy consumption of the mine car under low-temperature conditions and inaccurate temperature control of methanol fuel.

[0005] In a first aspect, an embodiment of the present application provides a temperature control method for a mine car combustion system based on a low-temperature environment, characterized in that the method includes: obtaining an initial warm-up temperature parameter, and performing a warm-up state analysis on the initial warm-up temperature parameter to determine warm-up start data; based on the warm-up start data, determining the dynamic power control data of the heater through a warm-up temperature threshold analysis; obtaining the real-time flow of methanol fuel, and performing a delayed heat exchange analysis on the real-time flow of methanol fuel to obtain a first coolant flow control parameter; obtaining methanol fuel storage temperature data, and obtaining a second coolant flow control parameter through a periodic heat exchange analysis based on the methanol fuel storage temperature data; performing proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data.

[0006] In one implementation of the present application, a warm-up status analysis is performed on the warm-up initial temperature parameters to determine the warm-up start data, specifically including: based on the warm-up initial temperature parameters, determining the first warm-up start data through heater power configuration; wherein the warm-up initial temperature parameters include: methanol fuel initial storage temperature, engine initial temperature; according to the first warm-up start data, determining the warm-up start flow through warm-up allocation node analysis; allocating flow configuration for the warm-up start flow to obtain the second warm-up start data; wherein the allocated flow configuration includes: engine initial flow configuration, methanol fuel initial flow configuration; based on the first warm-up start data and the second warm-up start data, determining the warm-up start data.

[0007] In one implementation of the present application, based on the warm-up start data, the dynamic power control data of the heater is determined through the warm-up temperature threshold analysis, specifically including: based on the warm-up start data, the warm-up temperature intermediate parameters are determined through the warm-up temperature parameter monitoring; wherein the warm-up temperature intermediate parameters include: engine temperature intermediate parameters, methanol fuel temperature intermediate parameters; the time when the engine temperature intermediate parameter reaches the first temperature threshold is set as the heater power adjustment node; the methanol fuel temperature intermediate parameter is subjected to the methanol fuel heating rate analysis to determine the heater power adjustment data; the heater dynamic power control data is determined according to the heater power adjustment node and the heater power adjustment data.

[0008] In one implementation of the present application, a delayed heat exchange analysis is performed on the real-time flow of methanol fuel to obtain a first coolant flow control parameter, specifically including: based on the real-time flow of methanol fuel, determining the methanol fuel flow change data through flow change rate analysis; matching the methanol fuel flow change data with a coolant heat exchange rate to obtain coolant flow change data; determining the coolant delayed flow change data through heat exchange delay analysis based on the coolant flow change data; and determining the first coolant flow control parameter based on the coolant flow change data and the coolant flow delay node.

[0009] In one implementation of the present application, a second coolant flow control parameter is obtained based on methanol fuel storage temperature data through periodic heat exchange analysis, specifically including: performing temperature periodic monitoring on the methanol fuel storage temperature data to determine the methanol fuel characteristic temperature node; based on the methanol fuel characteristic temperature node, obtaining the coolant flow control node through heat exchange node matching; according to the coolant flow control node, determining the second coolant flow control parameter through heat exchange rate analysis.

[0010] In one implementation of the present application, proportional flow threshold control is performed on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data, specifically including: determining the temperature difference weight through dynamic adjustment factor analysis based on the first coolant flow control parameter and the second coolant flow control parameter; performing flow dynamic intermediate value operation on the temperature difference weight to obtain coolant flow intermediate control data; and determining the coolant flow control data through dynamic judgment of the flow threshold based on the coolant flow intermediate control data.

[0011] In one implementation of the present application, based on the intermediate control data of the coolant flow, the coolant flow control data is determined through dynamic judgment of the flow threshold, specifically including: performing heat transfer efficiency analysis on the intermediate control data of the coolant flow to determine the dynamic temperature control parameters; performing dynamic flow velocity analysis on the dynamic temperature control parameters to obtain the real-time flow threshold; and adjusting the flow threshold of the coolant flow according to the real-time flow threshold and the intermediate control data of the coolant flow to determine the coolant flow control data.

[0012] In one implementation of the present application, after performing proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data, the method also includes: performing abnormal state monitoring on the coolant flow control data to obtain fault warning data; and performing adaptive matching of mine car parameters on the coolant flow control data to determine a multi-model coolant flow control strategy.

[0013] In the second aspect, the embodiment of the present application also provides a temperature control device for a mine car combustion system based on a low-temperature environment, characterized in that the device includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor so that at least one processor can: obtain the initial warm-up temperature parameters, and perform a warm-up state analysis on the initial warm-up temperature parameters to determine the warm-up start-up data; based on the warm-up start-up data, determine the dynamic power control data of the heater through a warm-up temperature threshold analysis; obtain the real-time flow rate of methanol fuel, and perform a delayed heat exchange analysis on the real-time flow rate of methanol fuel to obtain a first coolant flow control parameter; obtain the methanol fuel storage temperature data, and obtain the second coolant flow control parameter through a periodic heat exchange analysis based on the methanol fuel storage temperature data; perform proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data.

[0014] In a third aspect, an embodiment of the present application also provides a non-volatile computer storage medium for temperature control of a mine car combustion system based on a low-temperature environment, storing computer executable instructions, characterized in that the computer executable instructions are set to: obtain the initial warm-up temperature parameters, and perform a warm-up state analysis on the initial warm-up temperature parameters to determine the warm-up start data; based on the warm-up start data, determine the heater dynamic power control data through a warm-up temperature threshold analysis; obtain the real-time flow rate of methanol fuel, and perform a delayed heat exchange analysis on the real-time flow rate of methanol fuel to obtain a first coolant flow control parameter; obtain the methanol fuel storage temperature data, and obtain the second coolant flow control parameter through a periodic heat exchange analysis based on the methanol fuel storage temperature data; perform proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data.

[0015] The embodiments of the present application provide a temperature control method, device and medium for a mine car combustion system based on a low-temperature environment. By performing real-time heat exchange analysis on the low-energy warm-up adjustment of the mine car under a low-temperature environment and the temperature control of methanol fuel and the engine, the technical problems of high energy consumption for warming up the mine car under low-temperature conditions and inaccurate temperature control of methanol fuel are solved. Adaptive adjustment of heat exchange parameters during warm-up of the mine car methanol fuel and the engine is achieved, thereby improving the utilization rate and safety of the mine car methanol fuel and reducing the fuel consumption of engine warm-up. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A flow chart of a temperature control method for a mine car combustion system based on a low temperature environment provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the internal structure of a temperature control device for a mine car combustion system based on a low-temperature environment provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0020] The embodiments of the present application provide a temperature control method, device and medium for a mine car combustion system based on a low-temperature environment. By performing real-time heat exchange analysis on the low-energy warm-up adjustment of the mine car under a low-temperature environment and the temperature control of methanol fuel and the engine, the technical problems of high energy consumption for warming up the mine car under low-temperature conditions and inaccurate temperature control of methanol fuel are solved. Adaptive adjustment of heat exchange parameters during warm-up of the mine car methanol fuel and the engine is achieved, thereby improving the utilization rate and safety of the mine car methanol fuel and reducing the fuel consumption of engine warm-up.

[0021] The technical solution proposed in the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0022] Figure 1 The present invention provides a flow chart of a method for controlling the temperature of a mine car combustion system in a low temperature environment. Figure 1 As shown, the embodiment of the present application provides a method for controlling the temperature of a mine car combustion system based on a low temperature environment, which specifically includes the following steps:

[0023] Step 101 : Acquire initial warm-up temperature parameters, and perform warm-up state analysis on the initial warm-up temperature parameters to determine warm-up start data.

[0024] Specifically including: based on the initial warm-up temperature parameters, determining the first warm-up start data through the heater power configuration; wherein the initial warm-up temperature parameters include: the initial storage temperature of methanol fuel, the initial temperature of the engine; according to the first warm-up start data, determining the warm-up start flow through the warm-up allocation node analysis; allocating the warm-up start flow to obtain the second warm-up start data; wherein the allocated flow configuration includes: the engine initial flow configuration, the methanol fuel initial flow configuration; based on the first warm-up start data and the second warm-up start data, determining the warm-up start data.

[0025] This application obtains the initial warm-up temperature parameters and performs a warm-up status analysis on the initial warm-up temperature parameters to determine the warm-up start data, thereby realizing the current initial warm-up temperature parameters of the mine car engine under cold conditions, improving the warm-up efficiency of the mine car and optimizing the temperature environment of the methanol fuel.

[0026] In the examples of the present application, detailed explanation is given by the following Example 1.

[0027] Example 1: The suitable operating temperature of methanol fuel for mining vehicles is 40~60℃. When the temperature is below 40℃, the fluidity of methanol fuel will be reduced and the viscosity will be increased, which will affect the atomization effect and the starting effect of the engine. When the temperature is above 60℃ (54℃ is common), the explosiveness of methanol fuel will increase significantly, which will be more dangerous and the combustion performance will decrease.

[0028] Therefore, it is necessary to monitor and control the temperature of methanol fuel. First, the warm-up status analysis is performed on the obtained initial warm-up temperature parameters. The initial warm-up temperature parameters are temperature sensors installed in the mine car engine, fuel storage tank and external environment.

[0029] According to the initial storage temperature of the methanol fuel, the initial engine temperature and the ambient temperature parameters, and through the actual temperature requirements of the above-mentioned engine and methanol fuel, the heating power configuration of the heater, that is, the first warm-up start data, that is, the coolant temperature output by the heater, is determined.

[0030] It should be noted that the warm-up heating adopted in the present application is achieved by heating the coolant and then delivering it to the methanol fuel oil circuit (i.e., the location before the methanol fuel is input into the engine) for heat exchange. Therefore, the temperature control and warm-up efficiency control are the power of the heater and the pipeline flow control of the coolant.

[0031] Similarly, the operating temperature of the mining car engine is 90~110℃, and it usually needs to be heated to about 50~60℃ during warm-up. The actual situation can be adjusted according to the model. This part is preheated through the engine warm-up circuit.

[0032] Then, the second warm-up start data needs to determine the initial flow distribution between the engine warm-up circuit and the heater circuit heated by methanol fuel according to the warm-up initial temperature parameter. Since the engine warm-up temperature requirement is higher than that of methanol fuel, the heater is generally supplied by diesel in actual use. If the dual circuits are completely independent, the energy consumption is large and it is not environmentally friendly.

[0033] In this application, the two circuits control the flow and supply of coolant through a three-way control valve. The initial warm-up start flow is the most appropriate coolant flow output based on the initial warm-up temperature parameters, and then it is configured according to the actual initial requirements of engine warm-up and methanol fuel heating to obtain the second warm-up start data.

[0034] Finally, the warm-up start data is determined according to the first warm-up start data and the second warm-up start data.

[0035] Step 102: Based on the warm-up start data, determine the dynamic power control data of the heater through warm-up temperature threshold analysis.

[0036] Specifically, it includes: based on the warm-up start data, the intermediate parameters of the warm-up temperature are determined by monitoring the warm-up temperature parameters; wherein the intermediate parameters of the warm-up temperature include: the intermediate parameters of the engine temperature and the intermediate parameters of the methanol fuel temperature; the time when the intermediate parameters of the engine temperature reach the first temperature threshold is set as the heater power adjustment node; the methanol fuel temperature intermediate parameters are analyzed for the methanol fuel heating rate to determine the heater power adjustment data; according to the heater power adjustment node and the heater power adjustment data, the heater dynamic power control data is determined.

[0037] This application is based on the warm-up start-up data and determines the dynamic power control data of the heater through warm-up temperature threshold analysis, thereby realizing dynamic adjustment of the engine and methanol fuel temperature requirements during the mine car warm-up process, reducing the energy consumption of the mine car warm-up and improving the mine car warm-up efficiency.

[0038] In the examples of the present application, detailed explanation is given by the following Example 2.

[0039] Example 2: After the warm-up start data is determined, the mine car combustion system is warmed up. During the warm-up process, since the heating of methanol fuel and the engine needs to be mainly based on the engine, the engine is generally warmed up first or the engine warm-up power is increased.

[0040] In order to achieve the reduction of warm-up power consumption under the condition of rapid warm-up, the flow of the heater circuit needs to be distributed and adjusted in real time.

[0041] First, based on the initial warm-up start data, the intermediate parameters of the warm-up temperature are determined by monitoring the methanol fuel and the engine warm-up status.

[0042] Among them, the intermediate parameter of the engine temperature is judged, and when the engine temperature rises to a preset threshold, the time or moment is set as the heater power adjustment node, which is used to determine the adjustment time of the coolant circuit.

[0043] As the engine warms up, the engine temperature reaches the first temperature threshold first, which is the first 10°C of the warm-up temperature that the mining vehicle engine needs to reach (the warm-up temperature can be adjusted accordingly according to the model. When the warm-up temperature requirement is 55°C, the node can be at 45°C); at this time, the preheating of the methanol fuel is still in progress, and the corresponding heater power is relatively stable.

[0044] It should be noted that the first 10°C of the warm-up temperature that the mine car engine needs to reach is not limited to 10°C, but can be set at will according to the engine model.

[0045] Then, the methanol fuel temperature intermediate parameter is analyzed for the methanol fuel heating rate. When the methanol fuel heating rate is normal or fast, the output power of the warm-up circuit can be reduced because the engine warm-up is about to be completed.

[0046] When the heating rate of methanol fuel is affected slowly by the environment, part of the coolant in the engine warm-up circuit is transferred to the methanol fuel heating circuit through a three-way regulating valve to improve the warm-up efficiency without increasing the power of the warm-up circuit.

[0047] It should be noted that the three-way regulating valve is arranged between the two circuits. While connecting the two circuits, the diversion of the coolant can be controlled by real-time flow control.

[0048] Step 103: Acquire the real-time flow rate of methanol fuel, and perform delayed heat exchange analysis on the real-time flow rate of methanol fuel to obtain a first coolant flow rate control parameter.

[0049] Specifically, it includes: based on the real-time flow of methanol fuel, determining the methanol fuel flow change data through flow change rate analysis; matching the methanol fuel flow change data with the coolant heat exchange rate to obtain the coolant flow change data; according to the coolant flow change data, determining the coolant delayed flow change data through heat exchange delay analysis; based on the coolant flow change data and the coolant delayed flow change data, determining the first coolant flow control parameter.

[0050] The present application obtains the real-time flow rate of methanol fuel and performs delayed heat exchange analysis on the real-time flow rate of methanol fuel to obtain the first coolant flow control parameter, thereby achieving real-time adjustment of the temperature of the methanol fuel as the energy consumption of the mine car changes during the operation of the mine car, thereby improving the combustion efficiency and safety of the methanol fuel.

[0051] In the examples of the present application, this is explained in detail through the following Example 3.

[0052] Example 3: During the operation of the mine car after warming up, the fuel supply of the engine varies with the speed and load of the mine car, while the diameter of the oil supply pipeline and the pipeline for heat exchange of methanol fuel are fixed. Therefore, in actual use, if the supply demand of methanol fuel is large and the fuel flow rate is large, insufficient heat exchange will occur, resulting in a certain degree of temperature of methanol fuel not meeting the standard or exceeding the applicable temperature.

[0053] First of all, the flow rate of methanol fuel needs to be monitored in real time. Since the power consumption of the mine car (corresponding to the consumption of methanol fuel) is a dynamic change process, the flow rate change rate of methanol fuel needs to be analyzed at the same time to meet the judgment of the flow value change and degree of change of methanol fuel.

[0054] Then, the coolant heat exchange rate is matched to the methanol fuel flow change data. Since the pipe diameter and material are constants, the flow rate of the heat exchange medium (coolant) is the only variable in the confirmation of the actual heat exchange efficiency or the heat exchange per unit time. Therefore, the heat exchange state of the methanol fuel is matched by the coolant flow rate to determine the coolant flow change data.

[0055] During the operation of the mine car, the power change of the engine is determined by the actions of the mine car operator. In this case, the instructions for adding power and reducing power are instantaneous, but the change of engine power is gradual. Therefore, in practical applications, the flow control of methanol fuel and coolant also needs to be delayed to ensure that the temperature of the methanol fuel for the mine car is within the applicable range.

[0056] This application analyzes the above situation through heat exchange time analysis, makes inflection point judgment on the coolant flow change data, and determines the flow change inflection point. At this time, the engine changes to immediate power increase or power reduction. If the inflection point is delayed and tracked backward to the next node, when the time between nodes is less than the preset threshold, the coolant flow of the heat exchange pipeline maintains the original value; on the contrary, when the time between nodes is greater than the preset threshold, the mine car operation state is determined to be stable power increase or power reduction. At this time, the corresponding coolant flow is dynamically matched, and coolant flow control is implemented.

[0057] Finally, based on the coolant flow change data and the coolant delayed flow change data, a first coolant flow control parameter is determined. The first coolant flow control parameter is used to adjust the coolant flow to meet various situations during the operation of the mine car.

[0058] It should be noted that the preset threshold used for judgment after the flow change inflection point is determined can generally be determined by the engine model, or the state of adding and reducing power of a certain model of engine can be analyzed through experiments to determine a judgment threshold that is more suitable for the engine model.

[0059] Step 104: Acquire methanol fuel storage temperature data, and obtain a second coolant flow control parameter through periodic heat exchange analysis based on the methanol fuel storage temperature data.

[0060] Specifically, the method includes: performing temperature cycle monitoring on methanol fuel storage temperature data to determine the characteristic temperature node of methanol fuel; obtaining a coolant flow control node through heat exchange node matching based on the characteristic temperature node of methanol fuel; and determining a second coolant flow control parameter through heat exchange rate analysis according to the coolant flow control node.

[0061] The present application obtains methanol fuel storage temperature data and, based on the methanol fuel storage temperature data, obtains the second coolant flow control parameter through periodic heat exchange analysis, thereby realizing the transportation temperature control of the methanol fuel when the temperature changes due to the changes in the external temperature during the driving of the mine car, thereby improving the combustion efficiency and safety of the methanol fuel.

[0062] In the examples of the present application, a detailed explanation is given by the following Example 4.

[0063] Example 4: The storage of methanol fuel is affected by the ambient temperature, and the temperature changes significantly. When the ambient temperature changes significantly, the flow of the coolant circuit needs to be controlled in real time.

[0064] First, the temperature cycle of methanol fuel storage temperature data is monitored to obtain the cycle temperature data. The cycle temperature data is smoothed and the slope of the cycle temperature data is retrieved; after the cycle temperature change slope (i.e., the methanol fuel storage temperature change rate) is determined, the coolant flow is pre-adjusted according to the change rate.

[0065] The start time of adjustment is the characteristic temperature node of methanol fuel. Since the ambient temperature change is usually relatively stable, the coolant flow adjustment demand caused by the temperature change is dynamically adjusted before the temperature changes completely. The second coolant flow control parameter (i.e. the change of coolant flow) is determined by the following formula:

[0066] (1)

[0067] in, For over time Variable coolant flow;

[0068] is the initial coolant flow rate, i.e., the coolant flow rate when no significant change is detected in the environment;

[0069] To control the gain, it characterizes the response of the coolant flow rate to the temperature change rate. This parameter can be obtained from experiments on different models.

[0070] is the temperature change rate of methanol fuel storage;

[0071] is the delay time, which represents the time difference between the determination of the temperature change rate and the adjustment of the coolant flow rate.

[0072] Step 105: Perform proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine coolant flow control data.

[0073] Specifically, it includes: determining the temperature difference weight through dynamic adjustment factor analysis according to the first coolant flow control parameter and the second coolant flow control parameter; performing flow dynamic intermediate value operation on the temperature difference weight to obtain coolant flow intermediate control data; and determining the coolant flow control data through dynamic judgment of flow threshold based on the coolant flow intermediate control data.

[0074] Based on the intermediate control data of the coolant flow, the coolant flow control data is determined through dynamic judgment of the flow threshold, specifically including: performing heat transfer efficiency analysis on the intermediate control data of the coolant flow to determine the dynamic temperature control parameters; performing dynamic flow velocity analysis on the dynamic temperature control parameters to obtain the real-time flow threshold; adjusting the flow threshold of the coolant flow according to the real-time flow threshold and the intermediate control data of the coolant flow to determine the coolant flow control data.

[0075] After performing proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data, the method also includes: performing abnormal state monitoring on the coolant flow control data to obtain fault warning data; and performing mine car parameter adaptive matching on the coolant flow control data to determine multi-model coolant flow control strategies.

[0076] The present application determines the coolant flow control data by performing proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter, thereby realizing comprehensive analysis of the coolant flow during operation of the mine car and insurance control of the coolant flow, thereby improving the combustion efficiency and safety of methanol fuel.

[0077] In the examples of the present application, this is explained in detail through the following Example 5.

[0078] Example 5: In actual applications, the acquisition of the first coolant flow control parameter and the second coolant flow control parameter may result in simultaneous analysis, and it is necessary to perform weight analysis on the two respectively according to the temperature of the methanol fuel actually flowing into the engine to meet the specific control of the coolant flow.

[0079] Then, through heat transfer efficiency analysis, the dynamic adjustment of the control coolant during the current replacement will not cause the temperature of the methanol fuel to exceed the appropriate use temperature threshold, so as to meet the combustion efficiency and safety of the methanol fuel.

[0080] The above is an embodiment of the method proposed in this application. Based on the same inventive concept, the embodiment of this application also provides a temperature control device for a mine car combustion system based on a low temperature environment, and its structure is as follows Figure 2 shown.

[0081] Figure 2This is a schematic diagram of the internal structure of a temperature control device for a mine car combustion system based on a low temperature environment provided in an embodiment of the present application. Figure 2 As shown, the device includes:

[0082] at least one processor 201;

[0083] and, a memory 202 communicatively connected to the at least one processor;

[0084] The memory 202 stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor 201 to enable at least one processor 201 to:

[0085] Acquire the initial warm-up temperature parameters, and perform a warm-up status analysis on the initial warm-up temperature parameters to determine the warm-up start data; determine the dynamic power control data of the heater based on the warm-up start data through a warm-up temperature threshold analysis; acquire the real-time flow of methanol fuel, and perform a delayed heat exchange analysis on the real-time flow of methanol fuel to obtain the first coolant flow control parameter; acquire the methanol fuel storage temperature data, and obtain the second coolant flow control parameter through a periodic heat exchange analysis based on the methanol fuel storage temperature data; perform proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data.

[0086] Some embodiments of the present application provide corresponding Figure 1 A non-volatile computer storage medium for temperature control of a mine car combustion system based on a low temperature environment stores computer executable instructions, and the computer executable instructions are set as:

[0087] Acquire the initial warm-up temperature parameters, and perform a warm-up status analysis on the initial warm-up temperature parameters to determine the warm-up start data; determine the dynamic power control data of the heater based on the warm-up start data through a warm-up temperature threshold analysis; acquire the real-time flow of methanol fuel, and perform a delayed heat exchange analysis on the real-time flow of methanol fuel to obtain the first coolant flow control parameter; acquire the methanol fuel storage temperature data, and obtain the second coolant flow control parameter through a periodic heat exchange analysis based on the methanol fuel storage temperature data; perform proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine the coolant flow control data.

[0088] Each embodiment in this application is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the IoT device and medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0089] The system and medium provided in the embodiments of the present application correspond one-to-one to the method. Therefore, the system and medium also have similar beneficial technical effects to the corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the system and medium will not be repeated here.

[0090] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0091] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0092] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0093] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0094] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0095] Memory may include non-permanent storage in a computer-readable medium, in the form of random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

[0096] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0097] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0098] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A temperature control method for a mine car combustion system based on a low temperature environment, characterized in that: The method comprises: Acquire the initial warm-up temperature parameters, and perform warm-up state analysis on the initial warm-up temperature parameters to determine warm-up start data; wherein the initial warm-up temperature parameters include: initial storage temperature of methanol fuel and initial engine temperature, and warm-up is achieved by delivering the coolant heated by the heater to the methanol fuel oil circuit for heat exchange; Based on the warm-up start data, the warm-up temperature intermediate parameter is determined by monitoring the warm-up temperature parameter; wherein the warm-up temperature intermediate parameter includes: the engine temperature intermediate parameter and the methanol fuel temperature intermediate parameter; The time when the engine temperature intermediate parameter reaches the first temperature threshold is set as a heater power adjustment node; Performing methanol fuel heating rate analysis on the methanol fuel temperature intermediate parameter to determine heater power adjustment data; determining the heater dynamic power control data according to the heater power adjustment node and the heater power adjustment data; Acquire the real-time flow rate of methanol fuel, and determine the flow rate change data of methanol fuel by flow rate change rate analysis based on the real-time flow rate of methanol fuel; Performing coolant heat exchange rate matching on the methanol fuel flow rate change data to obtain coolant flow rate change data; According to the coolant flow rate change data, determining the coolant delayed flow rate change data through heat exchange delay analysis; determining a first coolant flow control parameter based on the coolant flow change data and the coolant delayed flow change data; Acquire methanol fuel storage temperature data, and obtain a second coolant flow control parameter through periodic heat exchange analysis based on the methanol fuel storage temperature data; Determining a temperature difference weight by dynamically adjusting factor analysis according to the first coolant flow control parameter and the second coolant flow control parameter; Performing flow dynamic intermediate value calculation on the temperature difference weight to obtain coolant flow intermediate control data; Based on the coolant flow intermediate control data, the coolant flow control data is determined through dynamic determination of the flow threshold.

2. A temperature control method for a mine car combustion system based on a low temperature environment according to claim 1, characterized in that: Performing a warm-up state analysis on the warm-up initial temperature parameter to determine warm-up start data specifically includes: Based on the warm-up initial temperature parameter, determining first warm-up start data through heater power configuration; According to the first warm-up start data, determining the warm-up start flow rate through warm-up allocation node analysis; Allocating flow configuration to the warm-up start flow to obtain second warm-up start data; wherein the allocated flow configuration includes: engine initial flow configuration, methanol fuel initial flow configuration; The warm-up start data is determined based on the first warm-up start data and the second warm-up start data.

3. A temperature control method for a mine car combustion system based on a low temperature environment according to claim 1, characterized in that: According to the methanol fuel storage temperature data, the second coolant flow control parameters are obtained through periodic heat exchange analysis, specifically including: Performing temperature cycle monitoring on the methanol fuel storage temperature data to determine a characteristic temperature node of the methanol fuel; Based on the methanol fuel characteristic temperature node, a coolant flow control node is obtained by matching the heat exchange node; According to the coolant flow control node, the second coolant flow control parameter is determined through heat exchange rate analysis.

4. A temperature control method for a mine car combustion system based on a low temperature environment according to claim 1, characterized in that: Based on the coolant flow intermediate control data, the coolant flow control data is determined through a flow threshold dynamic determination, specifically including: Performing heat transfer efficiency analysis on the coolant flow intermediate control data to determine dynamic temperature control parameters; Performing dynamic flow rate analysis on the dynamic temperature control parameter to obtain a real-time flow threshold; According to the real-time flow threshold and the coolant flow intermediate control data, the flow threshold of the coolant flow is adjusted to determine the coolant flow control data.

5. The temperature control method of a mine car combustion system based on a low temperature environment according to claim 1 is characterized in that: After performing proportional flow threshold control on the first coolant flow control parameter and the second coolant flow control parameter to determine coolant flow control data, the method further includes: Performing abnormal state monitoring on the coolant flow control data to obtain fault warning data; The coolant flow control data is adaptively matched with the mine car parameters to determine the coolant flow control strategies for multiple models.

6. A temperature control device for a mine car combustion system based on a low temperature environment, characterized in that: The device comprises: at least one processor; and, a memory communicatively coupled to the at least one processor; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to: Acquire the initial warm-up temperature parameters, and perform warm-up state analysis on the initial warm-up temperature parameters to determine warm-up start data; wherein the initial warm-up temperature parameters include: initial storage temperature of methanol fuel and initial engine temperature, and warm-up is achieved by delivering the coolant heated by the heater to the methanol fuel oil circuit for heat exchange; Based on the warm-up start data, the warm-up temperature intermediate parameter is determined by monitoring the warm-up temperature parameter; wherein the warm-up temperature intermediate parameter includes: the engine temperature intermediate parameter and the methanol fuel temperature intermediate parameter; The time when the engine temperature intermediate parameter reaches the first temperature threshold is set as a heater power adjustment node; Performing methanol fuel heating rate analysis on the methanol fuel temperature intermediate parameter to determine heater power adjustment data; determining the heater dynamic power control data according to the heater power adjustment node and the heater power adjustment data; Acquire the real-time flow rate of methanol fuel, and determine the flow rate change data of methanol fuel by flow rate change rate analysis based on the real-time flow rate of methanol fuel; Performing coolant heat exchange rate matching on the methanol fuel flow rate change data to obtain coolant flow rate change data; According to the coolant flow rate change data, determining the coolant delayed flow rate change data through heat exchange delay analysis; determining a first coolant flow control parameter based on the coolant flow change data and the coolant delayed flow change data; Acquire methanol fuel storage temperature data, and obtain a second coolant flow control parameter through periodic heat exchange analysis based on the methanol fuel storage temperature data; Determining a temperature difference weight by dynamically adjusting factor analysis according to the first coolant flow control parameter and the second coolant flow control parameter; Performing flow dynamic intermediate value calculation on the temperature difference weight to obtain coolant flow intermediate control data; Based on the coolant flow intermediate control data, the coolant flow control data is determined through dynamic determination of the flow threshold.

7. A non-volatile computer storage medium for temperature control of a mine car combustion system based on a low temperature environment, storing computer executable instructions, characterized in that: The computer executable instructions are configured to: Acquire the initial warm-up temperature parameters, and perform warm-up state analysis on the initial warm-up temperature parameters to determine warm-up start data; wherein the initial warm-up temperature parameters include: initial storage temperature of methanol fuel and initial engine temperature, and warm-up is achieved by delivering the coolant heated by the heater to the methanol fuel oil circuit for heat exchange; Based on the warm-up start data, the warm-up temperature intermediate parameter is determined by monitoring the warm-up temperature parameter; wherein the warm-up temperature intermediate parameter includes: the engine temperature intermediate parameter and the methanol fuel temperature intermediate parameter; The time when the engine temperature intermediate parameter reaches the first temperature threshold is set as a heater power adjustment node; Performing methanol fuel heating rate analysis on the methanol fuel temperature intermediate parameter to determine heater power adjustment data; determining the heater dynamic power control data according to the heater power adjustment node and the heater power adjustment data; Acquire the real-time flow rate of methanol fuel, and determine the flow rate change data of methanol fuel by flow rate change rate analysis based on the real-time flow rate of methanol fuel; Performing coolant heat exchange rate matching on the methanol fuel flow rate change data to obtain coolant flow rate change data; According to the coolant flow rate change data, determining the coolant delayed flow rate change data through heat exchange delay analysis; determining a first coolant flow control parameter based on the coolant flow change data and the coolant delayed flow change data; Acquire methanol fuel storage temperature data, and obtain a second coolant flow control parameter through periodic heat exchange analysis based on the methanol fuel storage temperature data; Determining a temperature difference weight by dynamically adjusting factor analysis according to the first coolant flow control parameter and the second coolant flow control parameter; Performing flow dynamic intermediate value calculation on the temperature difference weight to obtain coolant flow intermediate control data; Based on the coolant flow intermediate control data, the coolant flow control data is determined through dynamic determination of the flow threshold.

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