Explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation

Abstract

The present application relates to the technical field of explosion-proof dehumidification, and discloses an explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation, which comprises an air treatment module, a sensing and monitoring module, an energy regulation module and a central control module; the system is also integrated with an explosion-proof structure unit; by formulating a control strategy with enthalpy as the core and setting different enthalpy control parameters for different explosion-proof environments, the distinctness of dehumidification and temperature regulation under different working conditions is ensured, and the air enthalpy is calculated in real time and the dehumidification and temperature regulation processes are dynamically coordinated, the system operation state is adjusted in real time, the accuracy of air parameter control in the explosion-proof environment is ensured, and the energy consumption is reduced; through the three-stage temperature regulation mechanism, the air is pre-cooled, deeply dehumidified and temperature compensated, the enthalpy control parameter corrects the temperature regulation process in real time, and the stability of the temperature control of the explosion-proof dehumidifier system is ensured.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof dehumidification technology, specifically an explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation. Background Technology

[0002] In industrial sectors where strict air quality control is required, dehumidifiers are critical equipment. The air in these environments may contain flammable and explosive dust or gases, thus requiring all electrical components and mechanical parts that may generate sparks to meet explosion-proof standards.

[0003] Currently, in the field of explosion-proof dehumidification technology, existing dehumidifier systems often fail to achieve precise temperature and humidity control when dealing with industrial ambient air containing flammable and explosive dust or gases. Because enthalpy is not used as a core control parameter, the system struggles to dynamically coordinate the dehumidification and temperature regulation processes, resulting in unreasonable energy distribution and slow response speed.

[0004] Therefore, an explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation is proposed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation, which solves the problems mentioned in the background technology, such as the difficulty in dynamically coordinating the dehumidification and temperature regulation processes, resulting in unreasonable energy distribution and slow response speed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an explosion-proof dehumidifier system based on enthalpy control and three-level temperature regulation, the system comprising an air handling module, a sensor monitoring module, an energy regulation module and a central control module; The air handling module is used to sequentially process air in an explosion-proof environment through a three-stage air handling path, including a first-stage pre-cooling and dehumidification stage, a second-stage temperature-regulating and dehumidification stage, and a third-stage temperature-regulating and compensation stage. The first-stage pre-cooling and dehumidification stage uses a surface cooler for initial cooling and dehumidification, the second-stage temperature-regulating and dehumidification stage uses an independent and controllable refrigeration circuit to achieve deep dehumidification and temperature fine-tuning, and the third-stage temperature-regulating and compensation stage uses an adjustable power reheater for final precise temperature compensation. The sensing and monitoring module is used to monitor air parameters in real time. It collects dry-bulb temperature and relative humidity data of key nodes in the system through explosion-proof temperature and humidity sensors, and calculates moisture content and enthalpy value to provide real-time input for control strategies. The energy regulation module is used to dynamically adjust the cooling and heating energy output, including compressor cooling capacity regulation, electronic expansion valve (EEV) opening control, and reheater power adjustment, in response to commands from the central control module. The central control module is used to coordinate the operation of each module. Based on real-time enthalpy calculation and target enthalpy setting, it uses a feedforward-feedback composite control algorithm to generate an optimized control strategy. The system also integrates explosion-proof structural units, ensuring that all electrical and mechanical components meet explosion-proof standards, including flameproof enclosures, increased safety junction boxes, and explosion-proof certified sensors.

[0007] Preferably, the air handling module includes a pre-cooling dehumidification unit, a temperature-regulating dehumidification unit, and a compensating temperature-regulating unit; The pre-cooling and dehumidifying unit is connected to the main refrigeration system through a surface cooler to handle high-load sensible heat and latent heat, thereby achieving preliminary cooling and dehumidification of the air. The temperature control and dehumidification unit adopts an independent refrigeration circuit, and its evaporator and condenser heat recovery mechanism work together to achieve deep dehumidification while pre-regulating the temperature, reducing the need for reheating. The compensation temperature control unit performs final heating compensation on the air through an adjustable power reheater, so that the supply air temperature matches the set value.

[0008] Preferably, the pre-cooling and dehumidifying unit is also equipped with a programmable fan and a flow regulating valve to control the air flow rate and refrigerant distribution to adapt to different load conditions; The temperature control and dehumidification unit includes an electronic expansion valve (EEV) and a heat recovery heat exchanger, which realizes the cascade utilization of cold and heat energy by adjusting the refrigerant flow and recovering condensation heat. The compensation temperature control unit uses a PTC electric heater and a hot water coil as a reheat source, and integrates a power modulation circuit.

[0009] Preferably, the sensing and monitoring module includes a sensor array, a data acquisition unit, and a status calculation unit; The sensor array consists of explosion-proof temperature and humidity sensors deployed at the fresh air inlet, return air inlet, mixing point and supply air point, to monitor the air condition at multiple points. The data acquisition unit is used to synchronously acquire sensor data and perform preliminary filtering to suppress noise interference. The state calculation unit calculates the moisture content and enthalpy value based on real-time temperature and humidity data.

[0010] Preferably, the sensor array is arranged in a distributed layout to cover the entire air handling process; The data acquisition unit supports multi-channel synchronous acquisition and has a moving average filtering function; The state calculation unit also integrates a time series analysis model to make short-term predictions of enthalpy data and identify abnormal trends.

[0011] Preferably, the energy regulation module includes a cooling execution unit, a temperature control unit, and a power modulation unit; The refrigeration unit provides adjustable cooling capacity through a variable frequency compressor and an economizer system, supporting efficient operation in low-temperature environments; The temperature control unit uses an electronic expansion valve (EEV) and a heat recovery device to regulate the energy distribution of the second-stage refrigeration circuit. The power modulation unit adjusts the reheater output based on phase control technology.

[0012] Preferably, the refrigeration execution unit has a multi-level capacity adjustment function, and adapts to load changes through parallel compressor connection and liquid injection enthalpy enhancement technology; The temperature control unit includes a reversible heat pump cycle, which allows for switching of refrigerant flow and enables seamless switching between cooling and heating modes. The power modulation unit integrates an overload protection circuit to maintain stable operation and ensure safety and explosion-proof features.

[0013] Preferably, the central control module includes a main control unit, an algorithm processing unit, and a human-computer interaction unit; The main control unit adopts a distributed architecture for scheduling inter-module communication and timing control, and supports modular expansion. The algorithm processing unit implements feedforward-feedback composite control, wherein the feedforward part calculates the total energy demand based on the difference between the return air enthalpy and the target enthalpy: ; in Total energy required For air volume, The enthalpy of the return air. Target air supply enthalpy value; The feedforward controller distributes total energy to the three-stage system by optimizing the allocation function: ; in This is to meet the feedforward cooling capacity requirements of the first-stage pre-cooling and dehumidification stage. To meet the feedforward cooling and heating requirements of the second-stage temperature and dehumidification stage, This is to meet the feedforward heating requirements of the third-stage temperature regulation compensation section. Outdoor relative humidity, For the optimal allocation function, Outdoor temperature It is a transpose operator. , , For efficiency weighting coefficients, and ; The human-computer interaction unit provides a graphical interface that supports parameter setting, real-time monitoring, and data export.

[0014] Preferably, the algorithm processing unit also integrates a decoupling control mechanism to solve the temperature and humidity coupling problem. The decoupling matrix is ​​represented as follows: ; in , , For the first, second, and third level energy correction amounts, For decoupling matrix, and These are the temperature and humidity feedback correction values, calculated using PID control. ; ; , ; in This is the temperature proportionality coefficient. The integral coefficient for temperature. The temperature differential coefficient, For temperature error, For the target supply air temperature, This refers to the actual supply air temperature. Due to humidity error, The target air supply relative humidity, This refers to the actual relative humidity of the supplied air. The final control output is the sum of the feedforward and feedback: ; ; ; in , , These are the first, second, and third level final control commands; The algorithm processing unit also supports adaptive mode switching: summer, winter and transition season modes to optimize energy distribution.

[0015] Preferably, the system further includes a data management and optimization unit, comprising a performance evaluation subunit and an early warning feedback subunit; The performance evaluation subunit quantifies system efficiency based on energy consumption and control accuracy data, and evaluates control effectiveness using the following formula: ; in Indicates the optimized energy efficiency value. The number of key monitoring points, To implement the optimized migration trend index of the j-th key point at time t, To optimize the migration trend index of the j-th key point at time t before implementation, To implement the optimized migration trend index of the j-th key point at time t-1, The migration trend index of the j-th key point at time t-1 before optimization is implemented; The early warning feedback subunit triggers an audible and visual alarm and pushes a message when the system deviates from the set threshold, and records the operation log for historical analysis. The data management and optimization unit also provides time- and operating condition-based retrieval functions, supporting continuous iteration of control strategies.

[0016] Compared with existing technologies, this invention provides an explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation, which has the following beneficial effects: 1. In this invention, by formulating a control strategy centered on enthalpy and setting different enthalpy control parameters for different explosion-proof environments, the clarity of dehumidification and temperature regulation under different operating conditions is ensured. At the same time, the air enthalpy is calculated in real time and the dehumidification and temperature regulation processes are dynamically coordinated. The system operating status is adjusted in real time to ensure the accuracy of air parameter control in explosion-proof environments and reduce energy consumption.

[0017] 2. In this invention, a three-stage temperature control mechanism is used to pre-cool the air, perform deep dehumidification and temperature compensation, and judge the temperature fluctuation at each stage in real time to reduce the situation of large temperature fluctuation. When the temperature deviates, the temperature control process is corrected in real time by using enthalpy control parameters to ensure the stability of temperature control of the explosion-proof dehumidifier system.

[0018] 3. In this invention, during the dehumidification and temperature regulation process, the air state is automatically monitored and calculated in real time to obtain the air humidity and enthalpy data. The control strategy is adjusted in real time according to different air states to achieve precise enthalpy control and three-level temperature regulation for different explosion-proof environments. This reduces the occurrence of control errors during the dehumidification and temperature regulation process and improves the energy efficiency and safety of the explosion-proof dehumidifier system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to the present invention. Figure 2 This is a control flowchart of an explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] For specific implementation examples, please refer to: Figure 1-2 An explosion-proof dehumidifier system based on enthalpy control and three-level temperature regulation, the system includes an air handling module, a sensor monitoring module, an energy regulation module and a central control module; The air handling module is used to sequentially process air in an explosion-proof environment through a three-stage air handling path, including a first-stage pre-cooling and dehumidification stage, a second-stage temperature-regulating and dehumidification stage, and a third-stage temperature-regulating and compensation stage. The first-stage pre-cooling and dehumidification stage uses a surface cooler for initial cooling and dehumidification, the second-stage temperature-regulating and dehumidification stage uses an independent and controllable refrigeration circuit to achieve deep dehumidification and temperature fine-tuning, and the third-stage temperature-regulating and compensation stage uses an adjustable power reheater for final precise temperature compensation. The sensing and monitoring module is used to monitor air parameters in real time. It collects dry-bulb temperature and relative humidity data of key nodes in the system through explosion-proof temperature and humidity sensors, and calculates moisture content and enthalpy value to provide real-time input for control strategies. The energy regulation module is used to dynamically adjust the cooling and heating energy output, including compressor cooling capacity regulation, electronic expansion valve (EEV) opening control, and reheater power adjustment, in response to commands from the central control module. The central control module coordinates the operation of each module. Based on real-time enthalpy calculation and target enthalpy setting, it uses a feedforward-feedback composite control algorithm to generate an optimized control strategy. The system also integrates explosion-proof structural units, ensuring that all electrical and mechanical components meet explosion-proof standards, including flameproof enclosures, increased safety junction boxes, and explosion-proof certified sensors.

[0022] The air handling module includes a pre-cooling dehumidification unit, a temperature-regulating dehumidification unit, and a compensating temperature-regulating unit; The pre-cooling and dehumidifying unit is connected to the main refrigeration system through a surface cooler to handle high-load sensible heat and latent heat, thereby achieving preliminary cooling and dehumidification of the air. The temperature control and dehumidification unit adopts an independent refrigeration circuit. Its evaporator and condenser heat recovery mechanism work together to achieve deep dehumidification while pre-regulating the temperature, reducing the need for reheating. The compensation temperature control unit performs final heating compensation on the air through an adjustable power reheater, so that the supply air temperature matches the set value.

[0023] The pre-cooling and dehumidifying unit is also equipped with a programmable fan and a flow control valve to control airflow and refrigerant distribution to adapt to different load conditions; The temperature control and dehumidification unit includes an electronic expansion valve (EEV) and a heat recovery heat exchanger, which realizes the cascade utilization of cold and heat energy by regulating the refrigerant flow and recovering condensation heat. The compensation temperature control unit uses a PTC electric heater and a hot water coil as a reheat source, and integrates a power modulation circuit.

[0024] The sensing and monitoring module includes a sensor array, a data acquisition unit, and a status calculation unit; The sensor array consists of explosion-proof temperature and humidity sensors deployed at the fresh air inlet, return air inlet, mixing point and supply air point to monitor air conditions at multiple points. The data acquisition unit is used to synchronously acquire sensor data and perform preliminary filtering to suppress noise interference; The filtering algorithm formula is as follows: ; in This is the filtered sensor output value. These are the raw data collected by the sensor. For the moving average window size, For the summation index, The current moment; The state calculation unit calculates the moisture content and enthalpy value based on real-time temperature and humidity data, using the following formula: ; ; ; ; in This is the specific enthalpy of air. The dry-bulb temperature of the air. This refers to the humidity content of the air. This is the actual partial pressure of water vapor. Relative humidity, The partial pressure of saturated water vapor. Atmospheric pressure.

[0025] The sensor array is distributed to cover the entire air handling process, ensuring data representativeness and redundancy; The data acquisition unit supports multi-channel synchronous acquisition and has a moving average filtering function; The state calculation unit also integrates a time series analysis model to make short-term predictions of enthalpy data and identify abnormal trends; Time series analysis uses the ARIMA model, whose general formula is as follows: ; in Let be the sequence of monitoring values ​​at time t. For a d-order difference operator, For constant terms, The number of autoregressive terms. These are the autoregressive coefficients. The number of terms in the moving average. The moving average coefficient, This is the white noise error term.

[0026] The energy regulation module includes a cooling execution unit, a temperature control unit, and a power modulation unit; The refrigeration unit provides adjustable cooling capacity through a variable frequency compressor and an economizer system, supporting efficient operation in low-temperature environments; The temperature control unit uses the electronic expansion valve (EEV) and heat recovery device to regulate the energy distribution of the second-stage refrigeration circuit; The power modulation unit adjusts the reheater output based on phase control technology to achieve precise temperature control; When implementing phase control technology: a microcontroller generates a PWM signal with a base frequency of 1-10kHz, calculates the duty cycle according to the central control command, and controls the average power output; zero-crossing detection technology is used to switch power devices at the AC voltage zero-crossing point to reduce electrical interference; finally, a closed-loop feedback is formed through real-time current and voltage monitoring to dynamically fine-tune the duty cycle, ensuring accurate and stable power output while meeting explosion-proof safety requirements; the duty cycle calculation formula is as follows: ; in Duty cycle, To control the power value required by the command, This is the rated maximum power of the reheater.

[0027] The refrigeration unit has a multi-stage capacity adjustment function and adapts to load changes through parallel compressor operation and liquid injection enthalpy enhancement technology; The temperature control unit includes a reversible heat pump cycle, which allows for switching of refrigerant flow and enables seamless switching between cooling and heating modes. The power modulation unit integrates overload protection circuitry, ensuring stable operation and explosion-proof safety.

[0028] The central control module includes a main control unit, an algorithm processing unit, and a human-computer interaction unit; The main control unit adopts a distributed architecture for scheduling communication and timing control between modules, and supports modular expansion; The distributed architecture is based on a master-slave node design, with the master control unit acting as the coordinator and each functional module acting as a slave node, interconnected via a communication bus; the implementation steps include: Hardware deployment: The master node uses an embedded industrial computer, and the slave nodes use STM32 series microcontrollers. Each node is independently responsible for a specific function. Communication protocol: The Modbus TCP protocol is used to realize communication between nodes. Modbus TCP is used for data exchange in the human-machine interaction unit. Task allocation: The master node is responsible for task scheduling and global optimization, while slave nodes perform local control and periodically report their status to the master node through a heartbeat mechanism; Expansion mechanism: Supports hot-swapping; when a new node is added, the master node automatically identifies and updates the system topology. Fault tolerance: Redundancy design is adopted. When the master node fails, the backup node switches over; when communication is interrupted, the slave node switches to local security mode. The algorithm processing unit implements feedforward-feedback composite control, where the feedforward part calculates the total energy demand based on the difference between the return air enthalpy and the target enthalpy. ; in Total energy required For air volume, The enthalpy of the return air. Target air supply enthalpy value; The feedforward controller distributes total energy to the three-stage system by optimizing the allocation function: ; in This is to meet the feedforward cooling capacity requirements of the first-stage pre-cooling and dehumidification stage. To meet the feedforward cooling and heating requirements of the second-stage temperature and dehumidification stage, This is to meet the feedforward heating requirements of the third-stage temperature regulation compensation section. Outdoor relative humidity, For the optimal allocation function, Outdoor temperature It is a transpose operator. , , For efficiency weighting coefficients, and ; The human-computer interaction unit provides a graphical interface that supports parameter setting, real-time monitoring, and data export.

[0029] The algorithm processing unit also integrates a decoupling control mechanism to solve the temperature and humidity coupling problem. The decoupling matrix is ​​represented as follows: ; ; in , , For the first, second, and third level energy correction amounts, For decoupling matrix, The coupling coefficient of the humidity change on the temperature loop is denoted as . The coupling coefficient of the temperature change to the humidity loop is denoted as . and These are the temperature and humidity feedback correction values, calculated using PID control. ; ; , ; in This is the temperature proportionality coefficient. The integral coefficient for temperature. The temperature differential coefficient, For temperature error, For the target supply air temperature, This refers to the actual supply air temperature. Due to humidity error, The target air supply relative humidity, This refers to the actual relative humidity of the supplied air. The final control output is the sum of the feedforward and feedback: ; ; ; in , , These are the first, second, and third level final control commands; The algorithm processing unit also supports adaptive mode switching: summer, winter and transitional season modes to optimize energy distribution.

[0030] The system also includes a data management and optimization unit, comprising a performance evaluation subunit and an early warning feedback subunit; The performance evaluation subunit quantifies system efficiency based on energy consumption and control accuracy data, and evaluates control effectiveness using the following formula: ; in Indicates the optimized energy efficiency value. The number of key monitoring points, To implement the optimized migration trend index of the j-th key point at time t, To optimize the migration trend index of the j-th key point at time t before implementation, To implement the optimized migration trend index of the j-th key point at time t-1, The migration trend index of the j-th key point at time t-1 before optimization is implemented; The early warning feedback subunit triggers audible and visual alarms and pushes messages when the system deviates from the set threshold, and records operation logs for historical analysis. The data management and optimization unit also provides time- and operating condition-based retrieval functions, supporting continuous iteration of control strategies.

[0031] The operating steps of this system are as follows: After the system is started, the sensing and monitoring module first collects the dry-bulb temperature and relative humidity data of the air at the fresh air inlet, return air inlet, mixing point and supply air point in real time through its distributed array of explosion-proof temperature and humidity sensors. After the data acquisition unit synchronously collects and filters the sensor data, the state calculation unit calculates the current humidity and enthalpy of the air based on these real-time data.

[0032] The algorithm processing unit of the central control module compares the calculated return air enthalpy with the preset target supply air enthalpy. Employing a feedforward-feedback composite control algorithm, the feedforward part calculates the total energy demand based on the enthalpy difference and dynamically allocates the total energy demand to the three-stage processing sections of the air handling module by optimizing the allocation function in conjunction with outdoor temperature and humidity parameters. The energy regulation module responds to the commands of the central control module, dynamically adjusting the cooling capacity of the inverter compressor, the opening degree of the electronic expansion valve (EEV), and the power of the reheater.

[0033] The air handling module processes the air in sequence: the first-stage pre-cooling and dehumidification stage uses a surface cooler to initially cool and dehumidify the air; the second-stage temperature-regulating and dehumidifying stage uses its independent refrigeration circuit and heat recovery mechanism to perform deep dehumidification and temperature pre-regulation; and the third-stage temperature-regulating and compensation stage uses an adjustable power reheater to precisely compensate for the final temperature of the air.

[0034] Meanwhile, the decoupling control mechanism in the algorithm processing unit effectively solves the temperature and humidity coupling problem. The feedback part performs PID correction based on the deviation between the supply air temperature and humidity and the set value, and fine-tunes the energy allocated by the feedforward.

[0035] Throughout the process, the explosion-proof structural unit ensures the safe operation of all electrical and mechanical components under the protection of the explosion-proof enclosure, while the data management and optimization unit continuously performs performance evaluation and early warning feedback, supporting iterative optimization of control strategies, thereby achieving dehumidification and temperature regulation in an explosion-proof environment.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation, characterized in that: The system includes an air handling module, a sensing and monitoring module, an energy regulation module, and a central control module; The air handling module is used to sequentially process air in an explosion-proof environment through a three-stage air handling path, including a first-stage pre-cooling and dehumidification stage, a second-stage temperature-regulating and dehumidification stage, and a third-stage temperature-regulating and compensation stage. The first-stage pre-cooling and dehumidification stage uses a surface cooler for initial cooling and dehumidification, the second-stage temperature-regulating and dehumidification stage uses an independent and controllable refrigeration circuit to achieve deep dehumidification and temperature fine-tuning, and the third-stage temperature-regulating and compensation stage uses an adjustable power reheater for final precise temperature compensation. The sensing and monitoring module is used to monitor air parameters in real time. It collects dry-bulb temperature and relative humidity data of key nodes in the system through explosion-proof temperature and humidity sensors, and calculates moisture content and enthalpy value to provide real-time input for control strategies. The energy regulation module is used to dynamically adjust the cooling and heating energy output, including compressor cooling capacity regulation, electronic expansion valve (EEV) opening control, and reheater power adjustment, in response to commands from the central control module. The central control module is used to coordinate the operation of each module. Based on real-time enthalpy calculation and target enthalpy setting, it uses a feedforward-feedback composite control algorithm to generate an optimized control strategy. The system also integrates explosion-proof structural units, ensuring that all electrical and mechanical components meet explosion-proof standards, including flameproof enclosures, increased safety junction boxes, and explosion-proof certified sensors.

2. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 1, characterized in that: The air handling module includes a pre-cooling dehumidification unit, a temperature-regulating dehumidification unit, and a compensating temperature-regulating unit; The pre-cooling and dehumidifying unit is connected to the main refrigeration system through a surface cooler to handle high-load sensible heat and latent heat, thereby achieving preliminary cooling and dehumidification of the air. The temperature control and dehumidification unit adopts an independent refrigeration circuit, and its evaporator and condenser heat recovery mechanism work together to achieve deep dehumidification while pre-regulating the temperature, reducing the need for reheating. The compensation temperature control unit performs final heating compensation on the air through an adjustable power reheater, so that the supply air temperature matches the set value.

3. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 2, characterized in that: The pre-cooling and dehumidifying unit is also equipped with a programmable fan and a flow regulating valve to control the air flow rate and refrigerant distribution to adapt to different load conditions. The temperature control and dehumidification unit includes an electronic expansion valve (EEV) and a heat recovery heat exchanger, which realizes the cascade utilization of cold and heat energy by adjusting the refrigerant flow and recovering condensation heat. The compensation temperature control unit uses a PTC electric heater and a hot water coil as a reheat source, and integrates a power modulation circuit.

4. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 1, characterized in that: The sensing and monitoring module includes a sensor array, a data acquisition unit, and a status calculation unit; The sensor array consists of explosion-proof temperature and humidity sensors deployed at the fresh air inlet, return air inlet, mixing point and supply air point to monitor the air condition at multiple points. The data acquisition unit is used to synchronously acquire sensor data and perform preliminary filtering to suppress noise interference. The state calculation unit calculates the moisture content and enthalpy value based on real-time temperature and humidity data.

5. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 4, characterized in that: The sensor array is distributed to cover the entire air handling process; The data acquisition unit supports multi-channel synchronous acquisition and has a moving average filtering function; The state calculation unit also integrates a time series analysis model to make short-term predictions of enthalpy data and identify abnormal trends.

6. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 1, characterized in that: The energy regulation module includes a cooling execution unit, a temperature control unit, and a power modulation unit; The refrigeration unit provides adjustable cooling capacity through a variable frequency compressor and an economizer system, supporting efficient operation in low-temperature environments; The temperature control unit uses an electronic expansion valve (EEV) and a heat recovery device to regulate the energy distribution of the second-stage refrigeration circuit. The power modulation unit adjusts the reheater output based on phase control technology.

7. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 6, characterized in that: The refrigeration unit has a multi-level capacity adjustment function and adapts to load changes through parallel compressors and liquid injection enthalpy enhancement technology; The temperature control unit includes a reversible heat pump cycle, which allows for switching of refrigerant flow and enables seamless switching between cooling and heating modes. The power modulation unit integrates an overload protection circuit to maintain stable operation and ensure safety and explosion-proof features.

8. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 1, characterized in that: The central control module includes a main control unit, an algorithm processing unit, and a human-computer interaction unit; The main control unit adopts a distributed architecture for scheduling inter-module communication and timing control, and supports modular expansion. The algorithm processing unit implements feedforward-feedback composite control, wherein the feedforward part calculates the total energy demand based on the difference between the return air enthalpy and the target enthalpy: ； in This is to meet the feedforward cooling capacity requirements of the first-stage pre-cooling and dehumidification stage. To meet the feedforward cooling and heating requirements of the second-stage temperature and dehumidification stage, This is to meet the feedforward heating requirements of the third-stage temperature regulation compensation section. Outdoor relative humidity, For the optimal allocation function, Outdoor temperature It is a transpose operator. , , For efficiency weighting coefficients, and ; The human-computer interaction unit provides a graphical interface that supports parameter setting, real-time monitoring, and data export.

9. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 8, characterized in that: The algorithm processing unit also integrates a decoupling control mechanism to solve the temperature and humidity coupling problem. The decoupling matrix is ​​represented as follows: ； in , , For the first, second, and third level energy correction amounts, For decoupling matrix, and These are the temperature and humidity feedback correction values, calculated using PID control. ； ； ， ； in This is the temperature proportionality coefficient. The temperature differential coefficient, For temperature error, For the target supply air temperature, This refers to the actual supply air temperature. Due to humidity error, The target air supply relative humidity, This refers to the actual relative humidity of the supplied air. The final control output is the sum of the feedforward and feedback: ； ； ； in , , These are the first, second, and third level final control commands; The algorithm processing unit also supports adaptive mode switching: summer, winter and transition season modes to optimize energy distribution.

10. The explosion-proof dehumidifier system based on enthalpy control and three-stage temperature regulation according to claim 1, characterized in that: The system also includes a data management and optimization unit, comprising a performance evaluation subunit and an early warning feedback subunit; The performance evaluation subunit quantifies system efficiency based on energy consumption and control accuracy data, and evaluates control effectiveness using the following formula: ； in Indicates the energy efficiency optimization value. The number of key monitoring points, To implement the optimized migration trend index of the j-th key point at time t, To optimize the migration trend index of the j-th key point at time t before implementation, To implement the optimized migration trend index of the j-th key point at time t-1, The migration trend index of the j-th key point at time t-1 before optimization is implemented; The early warning feedback subunit triggers an audible and visual alarm and pushes a message when the system deviates from the set threshold, and records the operation log for historical analysis. The data management and optimization unit also provides time- and operating condition-based retrieval functions, supporting continuous iteration of control strategies.

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