A mine heat and humidity independent control system and method

Abstract

The present invention discloses a mine heat and humidity independent control system and method. The system includes a ventilation system; the ventilation system sequentially passes the mine air flow through a dust removal system, a dehumidification system, and a cooling system to obtain clean, low-temperature, and low-humidity air; a heat recovery system collects the waste heat in the cooling system, the dehumidification system, the dust removal system, and the mine water collection device; a power system provides circulating power for the water circulation of the cooling system, the dehumidification system, the mine water collection device, and the dust removal system to maintain the stable operation of the system; an intelligent control system monitors the operating parameters of the cooling system, the dehumidification system, the dust removal system, the heat recovery system, and the ventilation system, as well as the mine parameters, realizes adjustable air supply parameters, operating parameters, and standby equipment, and achieves safety early warning through a central controller. The system and method have the ability to independently control temperature and humidity, can make full use of waste heat, and have low system energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of mine environment control, and particularly relates to a mine heat and humidity independent control system and method. Background Art

[0002] With the increase of the mining depth of mineral resources, the temperature and humidity underground continue to rise, resulting in the gradual deterioration of the thermal comfort conditions, and the heat hazard problem brings considerable challenges to engineering construction and human body functions. Through effective temperature and humidity control, not only can the mining efficiency be improved, but also the health of workers can be guaranteed, and the potential dangers caused by high temperature and high humidity can be prevented.

[0003] Traditional mine environment control systems usually reduce temperature and humidity through ventilation systems, but this method often has the following problems: First, the ventilation system is not flexible enough to meet the independent requirements of temperature and humidity in different areas inside the mine; second, humidity control is usually bundled with temperature control, lacking precise independent adjustment ability; third, high energy consumption and high maintenance costs.

[0004] Chinese Patent No. 2017106129950 discloses a distributed cooling air source heat pump system using low-grade heat energy in mines. The system mainly includes a diffusion tower, a heat pump unit and an air purifier. Using the gas-liquid phase change heat principle, the water mist in the air directly exchanges heat with the mine return air, and combines with an air compressor to recover the low-grade heat energy and other latent heat of the mine return air, so as to provide cooling capacity for mine cooling and dehumidification. However, this system has the problem of coupling of heat and humidity control, lacks independent control ability, and the form of waste heat utilization is relatively single, resulting in high system energy consumption. Summary of the Invention

[0005] The purpose of the present invention is to provide a mine heat and humidity independent control system and method, which have the ability to independently control temperature and humidity, and can make full use of waste heat, with low system energy consumption.

[0006] To achieve the above object, a mine heat and humidity independent control system of the present invention includes a cooling system, a dehumidification system, a cooling tower, a mine water inflow collection device, a dust removal system, a heat recovery system, a power system, an intelligent control system, and a ventilation system; the ventilation system sequentially passes the mine air flow into the dust removal system, the dehumidification system, and the cooling system. Among them, the air entering the dust removal system is dusty, high-temperature and high-humidity air. After being processed by the dust removal system, clean medium-temperature and high-humidity air is output and enters the dehumidification system. After being processed by the dehumidification system, clean medium-temperature and low-humidity air is output and enters the cooling system. After being processed by the cooling system, clean low-temperature and dry air is obtained; the cooling tower is a standby device for cooling the compression refrigeration cycle of the cooling system to ensure the normal operation of the cooling system; the heat recovery system uses an indirect heat exchange method to collect the waste heat in the cooling system, the dehumidification system, the dust removal system, and the mine water inflow collection device, and utilizes low-grade energy to realize solution regeneration and refrigerant cooling; the power system provides circulating power for the water circulation of the cooling system, the dehumidification system, the mine water inflow collection device, and the dust removal system to maintain the stable operation of the system; the intelligent control system monitors the operating parameters of the cooling system, the dehumidification system, the dust removal system, the heat recovery system, and the ventilation system, as well as the mine parameters, realizes the adjustability of the air supply parameters, operating parameters, and standby equipment, and realizes safety early warning through the central controller;

[0007] The cooling system includes a compressor, a condenser, an expansion valve, and an air cooler; the dehumidification system includes a solution dehumidification device, a solution regeneration device, a concentrated solution tank, a dilute solution tank, and a solution heating device; the dust removal system includes a spray dust removal device and a spray water collection device; the heat recovery system includes a dilute solution-refrigerant heat exchanger, a concentrated solution-refrigerant heat exchanger, a mine water waste heat recovery device, a dust removal water waste heat recovery device, and a solution heat exchanger; the power system includes a cooling water pump, a dilute solution pump, a concentrated solution pump, a mine water pump, and a spray water pump; the intelligent control system includes solenoid valves I to XIV, pipeline temperature sensors I to V, air duct temperature sensors I to IV, and air duct humidity sensors I to IV; the ventilation system includes a mine fresh air fan, a mine return air fan, an electric butterfly valve, a supply air static pressure sensor, a fresh air fan controller, a return air static pressure sensor, a return air fan controller, a supply air duct, and a return air duct.

[0008] As a further solution of the present invention: the medium used in the internal pipeline of the cooling system is a refrigerant, which works according to the corresponding refrigeration cycle principle in this system to achieve the refrigeration function; the medium in the internal pipeline of the dehumidification system is a dehumidification solution, and the air is dehumidified by relying on the characteristics of the dehumidification solution; the medium in the internal pipeline of the mine water inflow collection device is mine water, which participates in the corresponding heat transfer process in its device; the medium in the dust removal system is a dust removal aqueous solution, and the dust in the air is removed by using the interaction between the dust removal aqueous solution and the dusty air; the water circuits of these four devices are independent of each other.

[0009] As a further solution of the present invention: one end of the condenser is sequentially connected to a pipeline temperature sensor I, an expansion valve, and the input end of an air cooler through a pipeline. The output end of the air cooler is connected to the first input end of a concentrated solution-refrigerant heat exchanger. The first output end of the concentrated solution-refrigerant heat exchanger is connected to the input end of a compressor. The output end of the compressor is connected to the first input end of a dilute solution-refrigerant heat exchanger. The first output end of the dilute solution-refrigerant heat exchanger is connected to the condenser. The output end above the condenser is connected to one end of a cooling tower through a solenoid valve I. The other end of the cooling tower is sequentially connected to the condenser through a cooling water pump and a solenoid valve III. A solenoid valve II is connected between this input end and the output end above the condenser; the second output end of the concentrated solution-refrigerant heat exchanger is connected to one end of a concentrated solution tank. The other end of the concentrated solution tank is connected to the input end of a solution dehumidification device through a solenoid valve XIII; the output end of the solution dehumidification device is connected to the first input end of a solution heat exchanger through a dilute solution pump. A pipeline temperature sensor III is provided at the first output end of the solution heat exchanger. This output end is divided into two paths. One path is connected to the first input end of a dust removal water waste heat recovery device through a solenoid valve X, and the other path is connected to the second input end of the dilute solution-refrigerant heat exchanger through a solenoid valve XI; after a solenoid valve XII and a pipeline temperature sensor II are sequentially provided at the first output end of the dust removal water waste heat recovery device, it is divided into two paths. One path is connected to the first input end of a mine water inrush waste heat recovery device through a solenoid valve VIII, and the other path is connected to the branch of the second input end of the dilute solution-refrigerant heat exchanger between the solenoid valve XI and the solenoid valve VII; the first output end of the mine water inrush waste heat recovery device is connected to the second input end of the dilute solution-refrigerant heat exchanger through a solenoid valve VI; the output end of the spray dust removal device is sequentially connected to a pipeline temperature sensor IV and a spray water pump, and finally connected to the second input end of the dust removal water waste heat recovery device. The second output end of the dust removal water waste heat recovery device is connected to a spray water collection device; the second output end of the mine water inrush waste heat recovery device is connected to one end of a mine water inrush collection device. The other end of the mine water inrush collection device is sequentially connected to the second input end of the mine water inrush waste heat recovery device through a mine water pump, a pipeline temperature sensor V, and a solenoid valve IX; the second output end of the dilute solution-refrigerant heat exchanger is divided into two paths. One path is connected to the input end of a dilute solution tank through a solenoid valve IV, and the other path is sequentially connected to a solution heating device and the input end of the dilute solution tank through a solenoid valve V; the output end of the dilute solution tank is connected to the input end of a solution regeneration device through a solenoid valve XIV; the output end of the solution regeneration device is connected to the second input end of the solution heat exchanger through a concentrated solution pump. The second output end of the solution heat exchanger is connected to the second input end of the concentrated solution-refrigerant heat exchanger.

[0010] As a further solution of the present invention: the air supply duct is sequentially connected to a fresh air inlet, a spray dust removal device, a solution dehumidification device, an air cooler, a mine fresh air fan, and an air supply outlet from left to right; the spray dust removal device, the solution dehumidification device, and the air cooler are in communication with each other through an air path. An electric butterfly valve, an air duct temperature sensor I, and an air duct humidity sensor I are provided at the fresh air inlet; an air duct temperature sensor II and an air duct humidity sensor II are provided at the air supply outlet. The mine fresh air fan is connected to a fresh air fan controller, and an air supply static pressure sensor is connected behind the air supply outlet and the mine fresh air fan.

[0011] The return air duct is sequentially connected to a return air outlet, a solution regeneration device, a mine return air fan, and an exhaust outlet from right to left; an air duct humidity sensor III and an air duct temperature sensor III are provided at the return air outlet; an air duct temperature sensor IV and an air duct humidity sensor IV are provided at the exhaust outlet. The mine return air fan is connected to a return air fan controller, and a return air static pressure sensor is connected behind the exhaust outlet and the mine return air fan.

[0012] As a further solution of the present invention: the dehumidification solution used in the dehumidification system is a mixed solution of lithium chloride and calcium chloride in a ratio of 1:1, and the dehumidification solution device is made of zinc-nickel alloy material.

[0013] A control method for a mine heat and humidity independent control system. After the condenser cools down the refrigerant, it enters the expansion valve through a pipeline, then enters the air cooler to cool down the mine air current, and then enters the strong solution-refrigerant heat exchanger and then enters the compressor to complete the compression process to form a high-temperature refrigerant. Then it enters the weak solution-refrigerant heat exchanger and then enters the condenser to complete the entire compression refrigeration cycle; the cooling tower is used as the cold end input of the condenser to cool down the refrigerant in the compression refrigeration cycle; the air duct temperature sensor I monitors whether the refrigerant temperature reaches the operation requirement. If not, by opening the solenoid valve I and the solenoid valve III, the cooling tower is used for cooling, and the cooling water flow is adjusted by adjusting the solenoid valve II to achieve adjustable cooling water cooling.

[0014] As a further solution of the present invention: The dehumidification system is combined with the heat recovery system to complete the regeneration of the dehumidification solution. The input end of the solution dehumidification device is the concentrated solution, and the output end is the dilute solution, which is used to dehumidify the air; the input end of the solution regeneration device is the concentrated solution, and the output end is also the concentrated solution. The solution dehumidification regeneration cycle power is provided by the dilute solution pump and the concentrated solution pump; the dilute solution at the output end of the solution dehumidification device enters the solution heat exchanger through the dilute solution pump and exchanges heat with the concentrated solution at the output end of the solution regeneration device. The concentrated solution is used as the heat source to achieve primary waste heat recovery; the dilute solution output from the solution heat exchanger enters the dust removal water waste heat recovery device to conduct secondary waste heat recovery with the spray solution output from the spray dust removal device. The spray solution is used as the heat source; a part of the solution output from the dust removal water waste heat recovery device enters the mine water inflow waste heat recovery device to conduct tertiary waste heat recovery with the mine water inflow device; the treated dilute solution enters the dilute solution-refrigerant heat exchanger to complete the fourth waste heat recovery and obtain a high-temperature dilute solution; the high-temperature dilute solution enters the dilute solution tank through the solenoid valve IV and then enters the solution regeneration device to complete the solution regeneration, obtaining a high-temperature concentrated solution; the high-temperature concentrated solution passes through the concentrated solution pump and enters the solution heat exchanger and the concentrated solution-refrigerant heat exchanger in sequence to complete the heat exchange to obtain a concentrated solution that meets the requirements. The concentrated solution enters the concentrated solution tank for storage and is controlled by the solenoid valve XIII to enter the solution dehumidification device to dehumidify the air and become a dilute solution. This dilute solution finally serves as the output end of the solution dehumidification device and enters the dilute solution pump to complete the closed cycle of solution dehumidification-regeneration;

[0015] The pipeline temperature sensor II is used to monitor the temperature of the dehumidification solution; when the heat recovery system cannot meet the required working conditions, the intelligent control system controls the solenoid valve V to open, so that the dilute solution enters the solution heating device to make the dehumidification solution meet the required regeneration temperature; by controlling the solenoid valve XIII and the solenoid valve XIV, the flow rate of the dehumidification solution is controlled to meet the dehumidification requirements under different moisture loads.

[0016] As a further solution of the present invention: the heat recovery system is combined with the intelligent control system to realize the flexible conversion of multiple heat recovery devices; a pipeline temperature sensor III is arranged at the first output end of the solution heat exchanger to monitor the temperature of the dilute solution, a pipeline temperature sensor IV monitors the temperature of the spray water, and a pipeline temperature sensor V monitors the temperature of the mine water inflow; if the temperature of the dilute solution is lower than the temperatures of the spray water and the mine water inflow, and the temperature of the spray water is lower than the temperature of the mine water inflow, then solenoid valves VI, VIII, X, and XII are opened, and solenoid valves VII and XI are closed, so that the dilute solution sequentially enters the dust removal water waste heat recovery device and the mine water inflow waste heat recovery device to complete the preheating process of the dehumidification solution; if the temperature of the dilute solution is lower than the temperatures of the spray water and the mine water inflow, and the temperature of the spray water is higher than the temperature of the mine water inflow, then solenoid valves VII, X, and XII are opened, and solenoid valves VI, VIII, and XI are closed, so that the dilute solution enters the dust removal water waste heat recovery device to complete the preheating of the dilute solution and skips the mine water inflow waste heat recovery device; if the temperature of the dilute solution is higher than the temperature of the spray water and lower than the temperature of the mine water inflow, then solenoid valves X and XII are closed, and solenoid valves VI, VII, VIII, and XI are opened, so that the dilute solution directly enters the mine water inflow waste heat recovery device to complete the preheating of the dilute solution and skips the dust removal water waste heat recovery device; if the temperature of the dilute solution is higher than the temperatures of the spray water and the mine water inflow, then solenoid valve XI is opened, and solenoid valves VI, VII, VIII, IX, X, and XII are closed, so that the dilute solution directly enters the dilute solution - refrigerant heat exchanger and skips the preheating process of the dehumidification solution.

[0017] As a further solution of the present invention: the intelligent control system is combined with the ventilation system to realize the control of the air supply parameters; the temperature data is collected by the air duct temperature sensor I and the air duct temperature sensor II, uploaded to the central processor and judged whether it meets the air supply temperature requirement, and the air supply volume is controlled by controlling the electric butterfly valve and the mine fresh air fan; the humidity data is collected by the air duct humidity sensor I and the air duct humidity sensor II, judged by the central processor whether it meets the air supply requirement, and the solution flow rate is controlled by the solenoid valve XIII and the solenoid valve XIV; whether the solution heating device needs to be used is judged by the air duct humidity sensor III and the air duct humidity sensor IV, the solution concentration is controlled by controlling the solenoid valve IV and the solenoid valve V, and the dilute solution is heated to meet the requirement, so that the air supply humidity meets the standard.

[0018] Compared with the prior art, the present invention realizes the integrated treatment of dust removal, dehumidification, and cooling, enables the air supply to meet the requirements of clean, low-temperature, and dry conditions, ensures the underground operation environment, and uses an intelligent control system to monitor the operating parameters of the cooling system, dehumidification system, dust removal system, heat recovery system, and ventilation system, as well as the mine parameters, realizes the adjustability of the air supply parameters, operating parameters, and standby equipment, enables the system to have the ability to independently regulate temperature and humidity, and realizes safety early warning through the central controller. The heat recovery system collects the waste heat in the cooling system, dehumidification system, dust removal system, and mine water collection device, realizes solution regeneration and refrigerant cooling, makes full use of the waste heat, and through multi-stage heat recovery technology, realizes the utilization of low-grade heat sources, effectively reduces the energy consumption of the system, and saves costs. Combined with intelligent monitoring, the flexible conversion of the use order of heat recovery equipment is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the principle of the independent regulation system of heat and humidity in a mine of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the independent regulation water circuit circulation of heat and humidity in a mine of the present invention.

[0021] Figure 3 It is a schematic diagram of the air supply principle of the independent regulation system of heat and humidity in a mine of the present invention.

[0022] Figure 4 It is a schematic diagram of the return air principle of the independent regulation system of heat and humidity in a mine of the present invention.

[0023] Figure 5 It is a schematic diagram of the regulation principle of the intelligent control system of the present invention.

[0024] In the figure: 1 - Cooling system; 101 - Compressor; 102 - Condenser; 103 - Expansion valve; 104 - Air cooler; 2 - Dehumidification system; 201 - Solution dehumidification device; 202 - Solution regeneration device; 203 - Concentrated solution tank; 204 - Dilute solution tank; 205 - Solution heating device; 3 - Cooling tower; 4 - Mine water inflow collection device; 5 - Dust removal system; 501 - Spray dust removal device; 502 - Spray water collection device; 6 - Heat recovery system; 601 - Dilute solution - refrigerant heat exchanger; 602 - Concentrated solution - refrigerant heat exchanger; 603 - Mine water inflow waste heat recovery device; 604 - Dust removal water waste heat recovery device; 605 - Solution heat exchanger; 7 - Power system; 701 - Cooling water pump; 702 - Dilute solution pump; 703 - Concentrated solution pump; 704 - Mine water pump; 705 - Spray water pump; 8 - Intelligent control system; 801 - Solenoid valve I; 802 - Solenoid valve II; 803 - Solenoid valve III; 804 - Solenoid valve IV; 805 - Solenoid valve V; 806 - Solenoid valve VI; 807 - Solenoid valve VII; 808 - Solenoid valve VIII; 809 - Solenoid valve IX; 810 - Solenoid valve X; 811 - Solenoid valve XI; 812 - Solenoid valve XII; 813 - Solenoid valve XIII; 814 - Solenoid valve XIV; 815 - Pipeline temperature sensor I; 816 - Pipeline temperature sensor II; 817 - Pipeline temperature sensor III; 818 - Pipeline temperature sensor IV; 819 - Pipeline temperature sensor V; 820 - Air duct temperature sensor I; 821 - Air duct temperature sensor II; 822 - Air duct temperature sensor III; 823 - Air duct temperature sensor IV; 824 - Air duct humidity sensor I; 825 - Air duct humidity sensor II; 826 - Air duct humidity sensor III; 827 - Air duct humidity sensor IV; 9 - Ventilation system; 901 - Mine fresh air fan; 902 - Mine return air fan; 903 - Electric butterfly valve; 904 - Supply air static pressure sensor; 905 - Fresh air fan controller; 906 - Return air static pressure sensor; 907 - Return air fan controller; 908 - Supply air duct; 909 - Return air duct. Detailed implementation manners

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] As Figure 1 、 Figure 2As shown in the figure, a mine heat and humidity independent control system includes a cooling system 1, a dehumidification system 2, a cooling tower 3, a mine water collection device 4, a dust removal system 5, a heat recovery system 6, a power system 7, an intelligent control system 8, and a ventilation system 9. The ventilation system 9 passes the mine air flow through the dust removal system 5, the dehumidification system 2, and the cooling system 1 in sequence, and obtains clean, low-temperature, and dry air through treatment. The air ducts of each system are connected to ensure the smoothness of the air treatment process. Among them, the dusty, high-temperature, and high-humidity air enters the dust removal system 5, and after being treated by the dust removal system 5, clean medium-high-temperature and high-humidity air is output and enters the dehumidification system 2. After being treated by the dehumidification system 2, clean medium-temperature and low-humidity air is output and enters the cooling system 1. After being treated by the cooling system 1, clean low-temperature and dry air is obtained. The medium used in the internal pipeline of the cooling system 1 is a refrigerant, which works according to the corresponding refrigeration cycle principle in this system to achieve the refrigeration function. The medium in the internal pipeline of the dehumidification system 2 is a dehumidification solution, and the air is dehumidified by relying on the characteristics of the dehumidification solution. The medium in the internal pipeline of the mine water collection device 4 is mine water, which participates in the corresponding heat transfer process in its device. The medium in the dust removal system 5 is a dust removal aqueous solution, and the dust in the air is removed by the interaction between the dust removal aqueous solution and the dusty air. The water circuits of these four devices are independent of each other. The cooling tower 3 is a standby device for cooling the compression refrigeration cycle of the cooling system 1 to ensure the normal operation of the cooling system 1. The heat recovery system 6 uses the indirect heat exchange method to collect the waste heat in the cooling system 1, the dehumidification system 2, the dust removal system 5, and the mine water collection device 4, and uses low-grade energy to realize solution regeneration and refrigerant cooling. The power system 7 provides the circulating power for the water circuits of the cooling system 1, the dehumidification system 2, the mine water collection device 4, and the dust removal system 5 to maintain the stable operation of the system. The intelligent control system 8 monitors the operating parameters of the cooling system 1, the dehumidification system 2, the dust removal system 5, the heat recovery system 6, and the ventilation system 9, as well as the mine parameters, realizes the adjustability of the air supply parameters, operating parameters, and standby equipment, and realizes safety warning through the central controller.

[0027] As Figures 2 to 4As shown in the figure, the cooling system 1 includes a compressor 101, a condenser 102, an expansion valve 103, and an air cooler 104; the dehumidification system 2 includes a solution dehumidification device 201, a solution regeneration device 202, a concentrated solution tank 203, a dilute solution tank 204, and a solution heating device 205; the dust removal system 5 includes a spray dust removal device 501 and a spray water collection device 502; the heat recovery system 6 includes a dilute solution-refrigerant heat exchanger 601, a concentrated solution-refrigerant heat exchanger 602, a mine water inrush waste heat recovery device 603, a dust removal water waste heat recovery device 604, and a solution heat exchanger 605; the power system 7 includes a cooling water pump 701, a dilute solution pump 702, a concentrated solution pump 703, a mine water pump 704, and a spray water pump 705; the intelligent control system 8 includes solenoid valves I 801 to solenoid valves XIV 814, pipeline temperature sensors I 815 to pipeline temperature sensors V 819, air duct temperature sensors I 820 to air duct temperature sensors IV 823, and air duct humidity sensors I 824 to air duct humidity sensors IV 827; the ventilation system 9 includes a mine fresh air fan 901, a mine return air fan 902, an electric butterfly valve 903, a supply air static pressure sensor 904, a fresh air fan controller 905, a return air static pressure sensor 906, a return air fan controller 907, a supply air duct 908, and a return air duct 909.

[0028] The dehumidification system 2 adopts the solution dehumidification method. The dehumidification solution is a 1:1 mixed solution of lithium chloride and calcium chloride, which reduces crystallization and improves the solution dehumidification efficiency. The solution dehumidification device uses zinc-nickel alloy to reduce solution corrosion.

[0029] As Figure 2As shown, the water circuit circulation includes a condenser 102. One end of the condenser 102 is sequentially connected to a pipeline temperature sensor I815, an expansion valve 103, and the input end of an air cooler 104 through a pipeline. The output end of the air cooler 104 is connected to the first input end of a strong solution - refrigerant heat exchanger 602. The first output end of the strong solution - refrigerant heat exchanger 602 is connected to the input end of a compressor 101. The output end of the compressor 101 is connected to the first input end of a weak solution - refrigerant heat exchanger 601. The first output end of the weak solution - refrigerant heat exchanger 601 is connected to the condenser 102. The output end above the condenser 102 is connected to one end of a cooling tower 3 through a solenoid valve I801. The other end of the cooling tower 3 is sequentially connected to the condenser 102 through a cooling water pump 701 and a solenoid valve III803. A solenoid valve II802 is connected between this input end and the output end above the condenser 102; the second output end of the strong solution - refrigerant heat exchanger 602 is connected to one end of a strong solution tank 203. The other end of the strong solution tank 203 is connected to the input end of a solution dehumidification device 201 through a solenoid valve XIII813; the output end of the solution dehumidification device 201 is connected to the first input end of a solution heat exchanger 605 through a weak solution pump 702. A pipeline temperature sensor III817 is provided at the first output end of the solution heat exchanger 605. This output end is divided into two paths. One path is connected to the first input end of a dust removal water waste heat recovery device 604 through a solenoid valve X810, and the other path is connected to the second input end of the weak solution - refrigerant heat exchanger 601 through a solenoid valve XI811; on the first output end of the dust removal water waste heat recovery device 604, a solenoid valve XII812 and a pipeline temperature sensor II816 are sequentially provided and then divided into two paths. One path is connected to the first input end of a mine water inrush waste heat recovery device 603 through a solenoid valve VIII808, and the other path is connected to the branch of the solenoid valve XI811 and the second input end of the weak solution - refrigerant heat exchanger 601 through a solenoid valve VII807; the first output end of the mine water inrush waste heat recovery device 603 is connected to the second input end of the weak solution - refrigerant heat exchanger 601 through a solenoid valve VI806; the output end of a spray dust removal device 501 is sequentially connected to a pipeline temperature sensor IV818 and a spray water pump 705, and finally connected to the second input end of the dust removal water waste heat recovery device 604. The second output end of the dust removal water waste heat recovery device 604 is connected to a spray water collection device 502; the second output end of the mine water inrush waste heat recovery device 603 is connected to one end of a mine water inrush collection device 4. The other end of the mine water inrush collection device 4 is sequentially connected to the second input end of the mine water inrush waste heat recovery device 603 through a mine water pump 704, a pipeline temperature sensor V819, and a solenoid valve IX809; the second output end of the weak solution - refrigerant heat exchanger 601 is divided into two paths. One path is connected to the input end of a weak solution tank 204 through a solenoid valve IV804, and the other path is sequentially connected to a solution heating device 205 and the input end of the weak solution tank 204 through a solenoid valve V805;The output end of the dilute solution tank 204 is connected to the input end of the solution regeneration device 202 through the solenoid valve XIV814; the output end of the solution regeneration device 202 is connected to the second input end of the solution heat exchanger 605 through the concentrated solution pump 703, and the second output end of the solution heat exchanger 605 is connected to the second input end of the concentrated solution-refrigerant heat exchanger 602.

[0030] After the condenser 102 cools down the refrigerant, it enters the expansion valve 103 through a pipeline, then enters the air cooler 104 to cool down the mine air current, then enters the concentrated solution-refrigerant heat exchanger 602 and then enters the compressor 101 to complete the compression process to form a high-temperature refrigerant, and then enters the dilute solution-refrigerant heat exchanger 601 and then enters the condenser 102 to complete the entire compression refrigeration cycle. The cooling tower 3 serves as the cold-end input of the condenser 102 to cool down the refrigerant in the compression refrigeration cycle. The pipeline temperature sensor I815 monitors whether the refrigerant temperature reaches the operating requirement. If it does not reach the requirement, the solenoid valve I801 and the solenoid valve III803 are opened to cool down with the cooling tower 3, and the cooling water flow is adjusted by adjusting the solenoid valve II802 to achieve adjustable cooling water cooling.

[0031] The dehumidification system 2 is combined with the heat recovery system 6 to complete the regeneration of the dehumidification solution. The input end of the solution dehumidification device 201 is the concentrated solution, and the output end is the dilute solution, which is used to dehumidify the air; the input end of the solution regeneration device 202 is the concentrated solution, and the output end is the concentrated solution. The solution dehumidification regeneration circulation power is provided by the dilute solution pump 702 and the concentrated solution pump 703. The dilute solution at the output end of the solution dehumidification device 201 enters the solution heat exchanger 605 through the dilute solution pump 702 to exchange heat with the concentrated solution at the output end of the solution regeneration device 202. The concentrated solution is used as the heat source to achieve primary waste heat recovery; the dilute solution output from the solution heat exchanger 605 enters the dust removal water waste heat recovery device 604 to conduct secondary waste heat recovery with the spray solution output from the spray dust removal device 501. The spray solution is used as the heat source; a part of the solution output from the dust removal water waste heat recovery device 604 enters the mine water inrush waste heat recovery device 603 to conduct tertiary waste heat recovery with the mine water inrush device 4; the treated dilute solution enters the dilute solution - refrigerant heat exchanger 601 to complete the fourth waste heat recovery to obtain a high-temperature dilute solution; the high-temperature dilute solution enters the dilute solution tank 204 through the solenoid valve IV804 and then enters the solution regeneration device 202 to complete the solution regeneration and obtain a high-temperature concentrated solution; the high-temperature concentrated solution passes through the concentrated solution pump 703 and enters the solution heat exchanger 605 and the concentrated solution - refrigerant heat exchanger 602 in sequence to complete the heat exchange to obtain a qualified concentrated solution. The concentrated solution enters the concentrated solution tank 203 for storage and is controlled by the solenoid valve XIII813 to enter the solution dehumidification device 201 to dehumidify the air and become a dilute solution. This dilute solution finally serves as the output end of the solution dehumidification device 201 and enters the dilute solution pump 702 to complete the closed-loop cycle of solution dehumidification - regeneration. Among them, pre-cooling the concentrated solution is beneficial to improving the dehumidification efficiency, and pre-heating the dilute solution is beneficial to improving the regeneration efficiency.

[0032] The dehumidification system 2 is combined with the intelligent control system 8 to ensure that the operating parameters of the dehumidification system meet the requirements. The pipeline temperature sensor II816 is used to monitor the temperature of the dehumidification solution; when the heat recovery system 6 cannot meet the required working conditions, the intelligent control system 8 controls the solenoid valve V805 to open, so that the dilute solution enters the solution heating device 205 to make the dehumidification solution meet the required regeneration temperature. By controlling the solenoid valve XIII813 and the solenoid valve XIV814, the flow rate of the dehumidification solution is controlled to meet the dehumidification requirements under different moisture loads.

[0033] The mine water inrush collection device 4 is connected to the mine water pump 704 and is sent to the mine water inrush waste heat recovery device 603 by the mine water pump 704. The mine water inrush waste heat recovery device 603 heats the dehumidification solution, and the heated mine water inrush then flows back to the mine water inrush collection device 4, thereby completing the mine water heat recovery work.

[0034] The dust removal system 5 includes spray water, which processes the dust-containing air current through the spray dust removal device 501. The spray water is collected and enters the dust removal water waste heat recovery device 604 for waste heat recovery, and then enters the spray water collection device 502. The dust removal system 5 is an open circuit.

[0035] The heat recovery system 6 is combined with the intelligent control system 8 to achieve flexible conversion of multiple heat recovery devices. A pipeline temperature sensor III 817 is set at the first output end of the solution heat exchanger 605 to monitor the temperature of the dilute solution. The pipeline temperature sensor IV 818 monitors the temperature of the spray water, and the pipeline temperature sensor V 819 monitors the temperature of the mine water inflow. If the temperature of the dilute solution is lower than the temperature of the spray water and the temperature of the mine water inflow, and the temperature of the spray water is lower than the temperature of the mine water inflow, then the solenoid valve VI 806, solenoid valve VIII 808, solenoid valve X 810, and solenoid valve XII 812 are opened, and the solenoid valve VII 807 and solenoid valve XI 811 are closed, so that the dilute solution enters the dust removal water waste heat recovery device 604 and the mine water inflow waste heat recovery device 603 in sequence to complete the preheating process of the dehumidification solution; if the temperature of the dilute solution is lower than the temperature of the spray water and the temperature of the mine water inflow, and the temperature of the spray water is higher than the temperature of the mine water inflow, then the solenoid valve VII 807, solenoid valve X 810, and solenoid valve XII 812 are opened, and the solenoid valve VI 806, solenoid valve VIII 808, and solenoid valve XI 811 are closed, so that the dilute solution enters the dust removal water waste heat recovery device 604 to complete the preheating of the dilute solution and skip the mine water inflow waste heat recovery device 603; if the temperature of the dilute solution is higher than the temperature of the spray water and lower than the temperature of the mine water inflow, then the solenoid valve X 810 and solenoid valve XII 812 are closed, and the solenoid valve VI 806, solenoid valve VII 807, solenoid valve VIII 808, and solenoid valve XI 811 are opened, so that the dilute solution directly enters the mine water inflow waste heat recovery device 603 to complete the preheating of the dilute solution and skip the dust removal water waste heat recovery device 604; if the temperature of the dilute solution is higher than the temperature of the spray water and the temperature of the mine water inflow, then the solenoid valve XI 811 is opened, and the solenoid valve VI 806, solenoid valve VII 807, solenoid valve VIII 808, solenoid valve IX 809, solenoid valve X 810, and solenoid valve XII 812 are closed, so that the dilute solution directly enters the dilute solution-refrigerant heat exchanger 601 and skips the preheating process of the dehumidification solution.

[0036] The ventilation system 9 includes a mine air supply mode and a mine air return mode, such as Figure 3As shown in the figure, the mine air supply mode includes an air supply duct 908. The air supply duct 908 is sequentially connected to a fresh air inlet, a spray dust removal device 501, a solution dehumidification device 201, an air cooler 104, a mine fresh air fan 901, and an air outlet from left to right. The spray dust removal device 501, the solution dehumidification device 201, and the air cooler 104 are connected by an air path. The spray dust removal device 501 removes dust from the high-temperature and high-humidity air flow for dust removal and realizes the first cooling, forming a clean medium-temperature and high-humidity air flow, and then enters the solution dehumidification device 201 for dehumidification treatment and realizes the second cooling, forming a clean medium-temperature and dry air flow. At the same time, the medium-temperature air flow cooled for the first time is beneficial to improving the solution dehumidification efficiency. An electric butterfly valve 903, an air duct temperature sensor I820, and an air duct humidity sensor I824 are arranged at the fresh air inlet. An air duct temperature sensor II821 and an air duct humidity sensor II825 are arranged at the air outlet. The mine fresh air fan 901 is connected to a fresh air fan controller 905. An air supply static pressure sensor 904 is connected behind the air outlet and the mine fresh air fan 901.

[0037] As Figure 4 shown in the figure, the mine air return mode includes an air return duct 909. The air return duct 909 is sequentially connected to an air return port, a solution regeneration device 202, a mine air return fan 902, and an exhaust port from right to left. An air duct humidity sensor III826 and an air duct temperature sensor III822 are arranged at the air return port. An air duct temperature sensor IV823 and an air duct humidity sensor IV827 are arranged at the exhaust port. The mine air return fan 902 is connected to an air return fan controller 907. An air return static pressure sensor 906 is connected behind the exhaust port and the mine air return fan 902.

[0038] As Figures 1 to 4 shown in the figure, the intelligent control system 8 includes a safety warning part, a central controller, multiple sensors, and controllers. The sensors are arranged at key positions in the mine and heat and humidity treatment equipment (such as working faces, transportation channels, ventilation system inlets and outlets, refrigerant pipes, and solution pipes, etc.). The mine environment is controlled by real-time monitoring of the temperature and humidity in different areas of the mine, and the operation of the equipment is controlled by monitoring the pipe temperature. The data collected by the sensors is transmitted to the central control unit in real time through wireless communication technology, forming an environmental monitoring network covering the entire mine. The central controller analyzes and processes the environmental data in the mine, independently adjusts the temperature and humidity equipment, and records and analyzes the collected temperature and humidity data for historical records and trend analysis, providing a scientific basis for the long-term environmental regulation of the mine, and controlling and warning the mine temperature and humidity according to preset standards.

[0039] The intelligent control system 8 is combined with the ventilation system 9 to achieve the control of the air supply parameters. The temperature data is collected by the air duct temperature sensor I820 and the air duct temperature sensor II821, uploaded to the central processor, and it is judged whether it meets the air supply temperature requirement. The air supply volume is controlled by controlling the electric butterfly valve 903 and the mine fresh air fan 901. The humidity data is collected by the air duct humidity sensor I824 and the air duct humidity sensor II825, and the central processor judges whether it meets the air supply requirement and controls the solution flow rate through the solenoid valve XIII813 and the solenoid valve XIV814; through the air duct humidity sensor III826 and the air duct humidity sensor IV827, it is judged whether the solution heating device 205 needs to be used, and the solution concentration is controlled by controlling the solenoid valve IV804 and the solenoid valve V805, and the dilute solution is heated to meet the requirement, so that the air supply humidity meets the standard.

[0040] As Figure 5 shown, various sensors collect data, upload it to the central processor, and the control center judges whether it meets the safety requirements. If the safety requirements are not met, the power supply of the dust removal system 5, the dehumidification system 2 and the cooling system 1 is cut off, and the electric butterfly valve 903 and the fresh air fan controller 905 are controlled; the return air fan controller 907 speeds up the exhaust, and the standby fan is enabled, and at the same time, safety treatment is carried out.

Claims

1. A mine heat and humidity independent control system, characterized in that, It includes a cooling system (1), a dehumidification system (2), a cooling tower (3), a mine water inflow collection device (4), a dust removal system (5), a heat recovery system (6), a power system (7), an intelligent control system (8), and a ventilation system (9); the ventilation system (9) successively passes the mine air flow into the dust removal system (5), the dehumidification system (2), and the cooling system (1). Among them, the air entering the dust removal system (5) is dusty, high-temperature, and high-humidity air. After being treated by the dust removal system (5), clean medium-temperature and high-humidity air is output and enters the dehumidification system (2). After being treated by the dehumidification system (2), clean medium-temperature and low-humidity air is output and enters the cooling system (1). After being treated by the cooling system (1), clean low-temperature and dry air is obtained; the cooling tower (3) is a standby device for cooling the compression refrigeration cycle of the cooling system (1) to ensure the normal operation of the cooling system (1); the heat recovery system (6) uses the indirect heat exchange method to collect the waste heat in the cooling system (1), the dehumidification system (2), the dust removal system (5), and the mine water inflow collection device (4), utilizes low-grade energy, and realizes solution regeneration and refrigerant cooling; the power system (7) provides circulating power for the water circuit circulation of the cooling system (1), the dehumidification system (2), the mine water inflow collection device (4), and the dust removal system (5) to maintain the stable operation of the system; the intelligent control system (8) monitors the operating parameters of the cooling system (1), the dehumidification system (2), the dust removal system (5), the heat recovery system (6), and the ventilation system (9), as well as the mine parameters, realizes adjustable air supply parameters, operating parameters, and standby equipment, and realizes safety warning through the central controller; The temperature reduction system (1) includes a compressor (101), a condenser (102), an expansion valve (103), and an air cooler (104); the dehumidification system (2) includes a solution dehumidification device (201), a solution regeneration device (202), a concentrated solution tank (203), a dilute solution tank (204), and a solution heating device (205); the dust removal system (5) includes a spray dust removal device (501) and a spray water collection device (502); the heat recovery system (6) includes a dilute solution - refrigerant heat exchanger (601), a concentrated solution - refrigerant heat exchanger (602), a mine water inrush waste heat recovery device (603), a dust removal water waste heat recovery device (604), and a solution heat exchanger (605); the power system (7) includes a cooling water pump (701), a dilute solution pump (702), a concentrated solution pump (703), a mine water pump (704), and a spray water pump (705); the intelligent control system (8) includes solenoid valves I (801) to solenoid valves XIV (814), pipeline temperature sensors I (815) to pipeline temperature sensors V (819), air duct temperature sensors I (820) to air duct temperature sensors IV (823), and air duct humidity sensors I (824) to air duct humidity sensors IV (827); the ventilation system (9) includes a mine fresh air fan (901), a mine return air fan (902), an electric butterfly valve (903), a supply air static pressure sensor (904), a fresh air fan controller (905), a return air static pressure sensor (906), a return air fan controller (907), a supply air duct (908), and a return air duct (909); One end of the condenser (102) is sequentially connected to the input end of the pipeline temperature sensor I (815), the expansion valve (103), and the air cooler (104) through pipelines. The output end of the air cooler (104) is connected to the first input end of the concentrated solution-refrigerant heat exchanger (602). The first output end of the concentrated solution-refrigerant heat exchanger (602) is connected to the input end of the compressor (101). The output end of the compressor (101) is connected to the first input end of the dilute solution-refrigerant heat exchanger (601). The first output end of the dilute solution-refrigerant heat exchanger (601) is connected to the condenser (102). The output end above the condenser (102) is connected to one end of the cooling tower (3) through the solenoid valve I (801). The other end of the cooling tower (3) is sequentially connected to one input end of the condenser (102) through the cooling water pump (701) and the solenoid valve III (803). A solenoid valve II (802) is connected between this input end and the output end above the condenser (102); The second output end of the concentrated solution-refrigerant heat exchanger (602) is connected to one end of the concentrated solution tank (203). The other end of the concentrated solution tank (203) is connected to the input end of the solution dehumidification device (201) through the solenoid valve XIII (813); The output end of the solution dehumidification device (201) is connected to the first input end of the solution heat exchanger (605) through the dilute solution pump (702). A pipeline temperature sensor III (817) is arranged at the first output end of the solution heat exchanger (605). This output end is divided into two paths. One path is connected to the first input end of the dust removal water waste heat recovery device (604) through the solenoid valve X (810), and the other path is connected to the second input end of the dilute solution-refrigerant heat exchanger (601) through the solenoid valve XI (811); The first output end of the dust removal water waste heat recovery device (604) is sequentially provided with the solenoid valve XII (812) and the pipeline temperature sensor II (816) and then divided into two paths. One path is connected to the first input end of the mine water inrush waste heat recovery device (603) through the solenoid valve VIII (808), and the other path is connected to the branch of the second input end of the dilute solution-refrigerant heat exchanger (601) between the solenoid valve XI (811) through the solenoid valve VII (807); The first output end of the mine water inrush waste heat recovery device (603) is connected to the second input end of the dilute solution-refrigerant heat exchanger (601) through the solenoid valve VI (806); The output end of the spray dust removal device (501) is sequentially connected to the pipeline temperature sensor IV (818) and the spray water pump (705), and finally connected to the second input end of the dust removal water waste heat recovery device (604). The second output end of the dust removal water waste heat recovery device (604) is connected to the spray water collection device (502);The second output end of the mine water inrush waste heat recovery device (603) is connected to one end of the mine water inrush collection device (4). The other end of the mine water inrush collection device (4) is successively connected to the second input end of the mine water inrush waste heat recovery device (603) through a mine water pump (704), a pipeline temperature sensor V (819), and a solenoid valve IX (809). The second output end of the dilute solution - refrigerant heat exchanger (601) is divided into two paths. One path is connected to the input end of the dilute solution tank (204) through a solenoid valve IV (804), and the other path is successively connected to the input end of the dilute solution tank (204) through a solenoid valve V (805) and a solution heating device (205). The output end of the dilute solution tank (204) is connected to the input end of the solution regeneration device (202) through a solenoid valve XIV (814). The output end of the solution regeneration device (202) is connected to the second input end of the solution heat exchanger (605) through a concentrated solution pump (703), and the second output end of the solution heat exchanger (605) is connected to the second input end of the concentrated solution - refrigerant heat exchanger (602). The supply air duct (908) is sequentially connected to a fresh air inlet, a spray dust removal device (501), a solution dehumidification device (201), an air cooler (104), a mine fresh air fan (901), and an air supply outlet from left to right; the air paths between the spray dust removal device (501), the solution dehumidification device (201), and the air cooler (104) are interconnected. An electric butterfly valve (903), an air duct temperature sensor I (820), and an air duct humidity sensor I (824) are provided at the fresh air inlet; an air duct temperature sensor II (821) and an air duct humidity sensor II (825) are provided at the air supply outlet. The mine fresh air fan (901) is connected to the fresh air fan controller (905), and a supply air static pressure sensor (904) is connected behind the air supply outlet and the mine fresh air fan (901); The return air duct (909) is sequentially connected to a return air inlet, a solution regeneration device (202), a mine return air fan (902), and an exhaust outlet from right to left; an air duct humidity sensor III (826) and an air duct temperature sensor III (822) are provided at the return air inlet, and an air duct temperature sensor IV (823) and an air duct humidity sensor IV (827) are provided at the exhaust outlet. The mine return air fan (902) is connected to the return air fan controller (907), and a return air static pressure sensor (906) is connected behind the exhaust outlet and the mine return air fan (902).

2. The mine heat and humidity independent control system according to claim 1, wherein, The medium used in the internal pipes of the cooling system (1) is a refrigerant, which operates according to the corresponding refrigeration cycle principle within the cooling system (1) to achieve the refrigeration function; the medium in the internal pipes of the dehumidification system (2) is a dehumidification solution, and the dehumidification operation of the air is carried out relying on the characteristics of the dehumidification solution; the medium in the internal pipes of the mine water inflow collection device (4) is mine water, which participates in the corresponding heat transfer process within its device; the internal medium of the dust removal system (5) is a dust removal aqueous solution, and the dust in the air is removed by the interaction between the dust removal aqueous solution and the dust-containing air; the water circuits of the cooling system (1), the dehumidification system (2), the mine water inflow collection device (4), and the dust removal system (5) are independent of each other.

3. The mine heat and humidity independent control system according to claim 1, characterized in that, The dehumidification solution used in the dehumidification system (2) is a 1:1 mixed solution of lithium chloride and calcium chloride, and the dehumidification solution device is made of zinc-nickel alloy material.

4. A control method for the mine heat and humidity independent control system according to any one of claims 1 to 3, characterized in that, After the condenser (102) cools down the refrigerant, it enters the expansion valve (103) through a pipeline, then enters the air cooler (104) to cool down the mine air current, then enters the concentrated solution-refrigerant heat exchanger (602) and then enters the compressor (101) to complete the compression process to form a high-temperature refrigerant, and then enters the dilute solution-refrigerant heat exchanger (601) and then enters the condenser (102) to complete the entire compression refrigeration cycle; the cooling tower (3) serves as the cold end input of the condenser (102) to cool down the refrigerant in the compression refrigeration cycle; the pipeline temperature sensor I (815) monitors whether the refrigerant temperature reaches the operating requirement. If it does not reach the requirement, the solenoid valve I (801) and the solenoid valve III (803) are opened, the cooling tower (3) is used for cooling, and the cooling water flow is adjusted by adjusting the solenoid valve II (802) to achieve adjustable cooling water temperature.

5. The regulation method according to claim 4, characterized in that, The dehumidification system (2) is combined with the heat recovery system (6) to complete the regeneration of the dehumidification solution. The input end of the solution dehumidification device (201) is the concentrated solution, and the output end is the dilute solution, which dehumidifies the air; the input end of the solution regeneration device (202) is the concentrated solution, and the output end is the concentrated solution. The solution dehumidification regeneration cycle power is provided by the dilute solution pump (702) and the concentrated solution pump (703); the dilute solution at the output end of the solution dehumidification device (201) enters the solution heat exchanger (605) through the dilute solution pump (702) to exchange heat with the concentrated solution at the output end of the solution regeneration device (202). The concentrated solution is used as the heat source to achieve primary waste heat recovery; the dilute solution output by the solution heat exchanger (605) enters the dust removal water waste heat recovery device (604) to carry out secondary waste heat recovery with the spray solution output by the spray dust removal device (501). The spray solution is used as the heat source; a part of the solution output by the dust removal water waste heat recovery device (604) enters the mine water waste heat recovery device (603) to carry out tertiary waste heat recovery with the mine water device (4); the treated dilute solution enters the dilute solution-refrigerant heat exchanger (601) to complete the fourth waste heat recovery to obtain a high-temperature dilute solution; After the high-temperature dilute solution enters the dilute solution tank (204) through the solenoid valve IV (804), it then enters the solution regeneration device (202) to complete solution regeneration and obtain a high-temperature concentrated solution; the high-temperature concentrated solution passes through the concentrated solution pump (703) and successively enters the solution heat exchanger (605) and the concentrated solution - refrigerant heat exchanger (602) to complete heat exchange to obtain a concentrated solution that meets the requirements. The concentrated solution enters the concentrated solution tank (203) for storage and is controlled by the solenoid valve XIII (813) to enter the solution dehumidification device (201) for air dehumidification to become a dilute solution. This dilute solution finally enters the dilute solution pump (702) as the output end of the solution dehumidification device (201) to complete the closed cycle of solution dehumidification - regeneration; The pipeline temperature sensor II (816) is used to monitor the temperature of the dehumidification solution; when the heat recovery system (6) cannot meet the required working conditions, the intelligent control system (8) controls the opening of the solenoid valve V (805) to allow the dilute solution to enter the solution heating device (205) to make the dehumidification solution meet the required regeneration temperature; by controlling the solenoid valve XIII (813) and the solenoid valve XIV (814), the flow rate of the dehumidification solution is controlled to meet the dehumidification requirements under different wet loads.

6. The regulation method according to claim 4, wherein The heat recovery system (6) is combined with the intelligent control system (8) to achieve flexible conversion of multiple heat recovery devices; a pipeline temperature sensor III (817) is provided at the first output end of the solution heat exchanger (605) to monitor the temperature of the weak solution, a pipeline temperature sensor IV (818) monitors the temperature of the spray water, and a pipeline temperature sensor V (819) monitors the temperature of the mine water inflow; if the temperature of the weak solution is lower than the temperatures of the spray water and the mine water inflow, and the temperature of the spray water is lower than the temperature of the mine water inflow, then solenoid valve VI (806), solenoid valve VIII (808), solenoid valve X (810), and solenoid valve XII (812) are opened, and solenoid valve VII (807) and solenoid valve XI (811) are closed, so that the weak solution sequentially enters the dust removal water waste heat recovery device (604) and the mine water inflow waste heat recovery device (603) to complete the preheating process of the dehumidification solution; if the temperature of the weak solution is lower than the temperatures of the spray water and the mine water inflow, and the temperature of the spray water is higher than the temperature of the mine water inflow, then solenoid valve VII (807), solenoid valve X (810), and solenoid valve XII (812) are opened, and solenoid valve VI (806), solenoid valve VIII (808), and solenoid valve XI (811) are closed, so that the weak solution enters the dust removal water waste heat recovery device (604) to complete the preheating of the weak solution and skip the mine water inflow waste heat recovery device (603); if the temperature of the weak solution is higher than the temperature of the spray water and lower than the temperature of the mine water inflow, then solenoid valve X (810) and solenoid valve XII (812) are closed, and solenoid valve VI (806), solenoid valve VII (807), solenoid valve VIII (808), and solenoid valve XI (811) are opened, so that the weak solution directly enters the mine water inflow waste heat recovery device (603) to complete the preheating of the weak solution and skip the dust removal water waste heat recovery device (604); if the temperature of the weak solution is higher than the temperatures of the spray water and the mine water inflow, then solenoid valve XI (811) is opened, and solenoid valve VI (806), solenoid valve VII (807), solenoid valve VIII (808), solenoid valve IX (809), solenoid valve X (810), and solenoid valve XII (812) are closed, so that the weak solution directly enters the weak solution - refrigerant heat exchanger (601) and skips the preheating process of the dehumidification solution.

7. The regulation method according to claim 4, wherein The intelligent control system (8) is combined with the ventilation system (9) to achieve the control of the air supply parameters. Temperature data is collected by the air duct temperature sensor I (820) and the air duct temperature sensor II (821), uploaded to the central processor, and it is judged whether it meets the air supply temperature requirement. The air supply volume is controlled by controlling the electric butterfly valve (903) and the mine fresh air fan (901). Humidity data is collected by the air duct humidity sensor I (824) and the air duct humidity sensor II (825), and the central processor judges whether it meets the air supply requirement and controls the solution flow rate through the solenoid valve XIII (813) and the solenoid valve XIV (814). Through the air duct humidity sensor III (826) and the air duct humidity sensor IV (827), it is judged whether the solution heating device (205) needs to be adopted. The solution concentration is controlled by controlling the solenoid valve IV (804) and the solenoid valve V (805), and the dilute solution is heated to meet the requirement, so that the air supply humidity meets the standard.

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