CN-121995764-A - Functional decoupling regulation and control system and method for thermal-humidity environment of deep mine TBM tunneling surface

CN121995764ACN 121995764 ACN121995764 ACN 121995764ACN-121995764-A

Abstract

The invention relates to the technical field of mine tunneling, in particular to a functional decoupling regulation and control system and method for a thermal-humidity environment of a deep mine TBM tunneling surface, wherein the method comprises the steps of obtaining multisource environmental parameters, generating thermal-humidity state and air quality data through fusion processing, identifying the current thermal-humidity level and oxygen demand, and outputting an environmental level result and an oxygen supply demand signal; and constructing an oxygen supply-cooling-environment coupling thermodynamic model, and predicting the functional coupling degree of the two systems in a future period by combining a dynamic prediction method. The self-adaptive decoupling controller is utilized to dynamically optimize the energy consumption distribution of the oxygen supply and cooling system according to the prediction result, generate the regulation and control parameters, and output the control signals of the oxygen supply equipment and the cooling equipment according to the regulation and control parameters, so that the dynamic decoupling of the oxygen supply and cooling functions is realized, the problems of response lag, excessive energy consumption and control conflict caused by system coupling in the traditional control are solved, and the precision, energy efficiency and stability of the regulation and control of the environment of the tunneling surface under the deep high-temperature high-humidity environment are improved.

Inventors

SUN MENG
WEI JINGSHENG
WU XUEHUI

Assignees

中国矿业大学

Dates

Publication Date: 20260508
Application Date: 20260224

Claims (10)

1. The functional decoupling regulation and control method for the thermal-humidity environment of the tunneling surface of the deep mine TBM is characterized by comprising the following steps: Acquiring multi-source environmental parameter data of a deep mine TBM tunneling surface, and carrying out fusion processing on the multi-source environmental parameter data to generate heat and humidity state data and air quality data; Based on the heat and humidity state data and the air quality data, identifying the current heat and humidity level of the tunneling surface and the oxygen demand, and generating an environment level result and an oxygen supply demand signal; Constructing an oxygen supply-cooling-environment coupling thermodynamic model according to the environment grade result and the oxygen supply demand signal, and predicting the functional coupling degree in a future time period by adopting a dynamic prediction method to generate a prediction result; Based on the prediction result, dynamically adjusting energy consumption distribution between the oxygen supply system and the cooling system through the self-adaptive decoupling controller to generate regulation and control parameters; And outputting an oxygen supply equipment control signal and a cooling equipment control signal according to the regulation and control parameters so as to realize decoupling of oxygen supply-cooling function coupling.
2. The method for regulating and controlling the functional decoupling of the thermal-humidity environment of the tunneling surface of the deep mine TBM according to claim 1, wherein the generating of the thermal-humidity state data and the air quality data comprises the following steps: acquiring temperature sensor data, humidity sensor data, oxygen concentration sensor data and dust concentration sensor data to form an original environment parameter set; the temperature sensor data are real-time temperature values of the tunneling surface, the humidity sensor data are percentages of water vapor content in air, the oxygen concentration sensor data are oxygen volume ratios, and the dust concentration sensor data are suspended particulate matter mass concentrations; Carrying out noise reduction and drift correction preprocessing on the original environment parameter set to generate preprocessing environment data; And inputting the preprocessing environment data into a multi-mode fusion algorithm, and outputting the heat and humidity state data and the air quality data.
3. The method for functionally decoupling and regulating the thermal and humid environment of a deep mine TBM heading face according to claim 1, wherein said identifying the current heading face thermal and humid level and oxygen demand and generating an environmental level result and an oxygen supply demand signal comprises: Extracting a dry bulb temperature characteristic and a relative humidity characteristic from the hot and humid state data to generate a hot and humid characteristic vector; Extracting oxygen partial pressure characteristics and dust concentration characteristics from the air quality data to generate an air quality characteristic vector; Inputting the heat and humidity characteristic vector and the air quality characteristic vector into an environment assessment model, and outputting the environment grade result and the oxygen supply demand signal; the evaluation process of the environmental evaluation model may be represented by the following function: (E_level,O_signal)=F_evaluator([V_thermo,V_air]) Wherein (E_level, O_signal) represents the output environmental level result and oxygen supply demand signal, F_ evaluator represents the trained environmental assessment model function, V_thermo represents the heat-humidity feature vector, V_air represents the air quality feature vector, and [ V_thermo, V_air ] represents the splicing operation of the two feature vectors.
4. The method for regulating and controlling the functional decoupling of the thermal and humid environment of the tunneling surface of the deep mine TBM according to claim 1, wherein the constructing the oxygen supply-cooling-environment coupling thermodynamic model comprises the following steps: matching and selecting a group of thermodynamic parameters from a parameter library according to the environmental grade result and the oxygen supply demand signal; Based on the thermodynamic parameters, a coupling equation comprising a sensible heat exchange term, a latent heat exchange term, and an oxygen diffusion term is established, the coupling equation expressed as: ρc∂T/∂t=k∇2T+Q_geothermal-Q_cooling+Q_oxidation Wherein ρ is air density, c is air specific heat capacity, T is tunneling face temperature field distribution, k is heat conduction coefficient, Q_geothermal is geothermal source released power, Q_cooling is cooling system heat exchange amount, and Q_oxidation is equipment oxidation heat release power; and generating temperature field and oxygen concentration field distribution data for subsequent prediction by carrying out finite element solution on the coupling equation.
5. The method for regulating and controlling the functional decoupling of the thermal and wet environment of the tunneling surface of the deep mine TBM according to claim 1, wherein the method for predicting the functional coupling degree in the future time period by adopting the dynamic prediction method comprises the following steps: calculating an interaction coefficient between the oxygen supply flow and the cooling load based on the coupling thermodynamic model in each prediction step length to generate a coupling coefficient matrix; according to the coupling coefficient matrix, the coupling degree of the function is quantitatively evaluated through a coupling cost function, and a specific evaluation formula is expressed as follows: C=Σ[γ·(Oa-Os)2+δ·(Ta-Ts)2+ε·(Qo·Qc)] Wherein, C is the total functional coupling quantized value in future prediction domain, oa and Os represent the actual and set oxygen concentration, ta and Ts represent the actual and set temperature, qo and Qc are the energy consumption of oxygen supply system and cooling system, gamma, delta, epsilon are the preset weight coefficients for balancing the importance of different indexes; and updating the quantized and evaluated functional coupling degree to the prediction result.
6. The method for regulating and controlling the functional decoupling of the thermal and humid environment of the tunneling surface of the deep mine TBM according to claim 1, wherein the dynamic adjustment of the energy consumption distribution between the oxygen supply system and the cooling system by the adaptive decoupling controller comprises: inputting the prediction result into an expert system controller to generate a preliminary regulation parameter; Performing multi-objective optimization on the preliminary regulation parameters by adopting a model predictive control algorithm to generate regulated regulation parameters; and calculating the energy consumption distribution ratio between the oxygen supply system and the cooling system according to the adjusted regulation parameters, and generating the regulation parameters.
7. The method for functional decoupling regulation and control of a thermal-humidity environment of a deep mine TBM tunneling surface according to claim 1, further comprising, after generating the regulation and control parameters: Activating a buffer regulation mechanism to smooth the change of the regulation parameter when the environmental grade result of the heat-humidity grade mutation is identified; The response speed of the control signal of the cooling equipment is adjusted through a feedforward compensation algorithm so as to counteract the pressure fluctuation coupling generated by the oxygen supply system; And optimizing the regulation and control parameters on line according to the real-time energy efficiency ratio and the environmental comfort index.
8. The method for controlling the functional decoupling of the thermal and humid environment of the tunneling surface of the deep mine TBM according to claim 1, wherein the outputting the control signal of the oxygen supply device and the control signal of the cooling device comprises: converting the regulation and control parameters into target operation parameters of an oxygen supply fan and a refrigerating unit by combining environmental target indexes; Generating the oxygen supply equipment control signal according to the target operation parameter by a PID closed-loop controller; And generating the cooling equipment control signal according to the target operation parameter through a fuzzy controller.
9. The method for regulating and controlling the functional decoupling of the thermal-humidity environment of the tunneling surface of the deep mine TBM according to claim 1, wherein the energy consumption distribution between the oxygen supply system and the cooling system is dynamically regulated by the self-adaptive decoupling controller, and the method further comprises the steps of online learning and optimizing after the regulating and controlling parameters are generated: Collecting historical operation data including environmental state data, the regulation parameters and system energy efficiency indexes; Utilizing a reinforcement learning algorithm to adjust a decision strategy of the self-adaptive decoupling controller according to the historical operation data; And optimizing control parameters in a new environment according to historical data of similar working conditions through the transfer learning model so as to improve the environmental adaptability of the self-adaptive decoupling controller.
10. A functional decoupling regulation and control system for a thermal-humidity environment of a deep mine TBM heading face, the system comprising: The data fusion module is used for acquiring multi-source environmental parameter data of a deep mine TBM tunneling surface, and carrying out fusion processing on the multi-source environmental parameter data to generate heat and humidity state data and air quality data; the state identification module is used for identifying the current tunneling surface hot-wet grade and oxygen demand based on the hot-wet state data and the air quality data, and generating an environment grade result and an oxygen supply demand signal; The coupling prediction module is used for constructing an oxygen supply-cooling-environment coupling thermodynamic model according to the environment grade result and the oxygen supply demand signal, predicting the functional coupling degree in a future time period by adopting a dynamic prediction method, and generating a prediction result; The decoupling regulation and control module is used for dynamically regulating energy consumption distribution between the oxygen supply system and the cooling system through the self-adaptive decoupling controller based on the prediction result to generate regulation and control parameters; and the instruction output module is used for outputting an oxygen supply equipment control signal and a cooling equipment control signal according to the regulation and control parameters so as to realize decoupling of oxygen supply and cooling function coupling.

Description

Functional decoupling regulation and control system and method for thermal-humidity environment of deep mine TBM tunneling surface Technical Field The invention relates to the technical field of mine tunneling, in particular to a functional decoupling regulation and control system and method for a thermal-humidity environment of a deep mine TBM tunneling surface. Background As mineral resource development continues to extend to deep mining, deep mine roadway driving faces serious challenges in extreme hot and humid environments. Under the conditions of deep high ground temperature, high humidity and high stress, the working area of a TBM (full face rock tunnel boring machine) tunneling surface often has a severe environment with the temperature exceeding 35 ℃ and the relative humidity approaching saturation, and the running reliability of equipment and the physiological health of operators are seriously affected. The traditional hot and humid environment regulation and control mostly adopts a centralized ventilation and mechanical refrigeration combined cooling mode, and an oxygen supply and cooling system often independently operates or simply links, and lacks dynamic coordination control on the function coupling relation of the oxygen supply and the cooling system. In actual operation, the increase of the oxygen supply air quantity can cause the rise of the heat load of the tunneling surface to aggravate the burden of a cooling system, and the excessive refrigeration can cause the excessive dehumidification of air, reduce the oxygen diffusion efficiency and even cause the dewing problem, thereby causing secondary potential safety hazard. In addition, geological conditions are frequently changed dynamically in the deep tunneling process, boundary conditions such as heat source release, surrounding rock moisture dissipation, personnel oxygen consumption and the like have strong time variability and uncertainty, so that oxygen supply and cooling requirements continuously fluctuate, and the dual targets of energy efficiency optimization and environment stability are difficult to realize by the traditional fixed proportioning or experience regulation and control strategy. In the prior art, although a local environment intelligent regulation and control system attempts to introduce a sensor feedback and automatic control mechanism, most of oxygen supply and cooling are treated as independent subsystems, and the dynamic coupling characteristics of the two in the aspects of thermodynamic process, airflow organization and energy consumption distribution are not fully considered, so that control conflict, energy waste and response lag are easily caused. The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art. Disclosure of Invention The invention mainly aims to provide a functional decoupling regulation and control system and method for a thermal-humidity environment of a deep mine TBM tunneling surface, and aims to solve the technical problems of control conflict, high energy consumption and response lag caused by insufficient functional coupling dynamic coordination of an oxygen supply system and a cooling system in the regulation and control of the thermal-humidity environment of the existing deep mine TBM tunneling surface. In order to achieve the purpose, the invention provides a functional decoupling regulation and control method for a thermal-humidity environment of a deep mine TBM tunneling surface, which comprises the following steps: Acquiring multi-source environmental parameter data of a deep mine TBM tunneling surface, and carrying out fusion processing on the multi-source environmental parameter data to generate heat and humidity state data and air quality data; Based on the heat and humidity state data and the air quality data, identifying the current heat and humidity level of the tunneling surface and the oxygen demand, and generating an environment level result and an oxygen supply demand signal; Constructing an oxygen supply-cooling-environment coupling thermodynamic model according to the environment grade result and the oxygen supply demand signal, and predicting the functional coupling degree in a future time period by adopting a dynamic prediction method to generate a prediction result; Based on the prediction result, dynamically adjusting energy consumption distribution between the oxygen supply system and the cooling system through the self-adaptive decoupling controller to generate regulation and control parameters; And outputting an oxygen supply equipment control signal and a cooling equipment control signal according to the regulation and control parameters so as to realize decoupling of oxygen supply-cooling function coupling. Optionally, the generating the heat humidity state data and the air quality data includes: acquiring temperatu