Heat supply system for heat supply of mining area building and anti-freezing of shaft

Abstract

The invention discloses a heat supply system for mine building heat supply and shaft freezing prevention, comprising: a heat collection module for collecting heat by using solar energy; the heat storage module exchanges heat with the heat collection module, is used for storing the heat source transferred by the heat collection module and can transfer the heat source to a heat terminal for the mining area building for heating around the clock; the power supply module is used for generating power by using solar energy and storing electric energy; and the wellhead heating modules are arranged at the shaft positions of the main inclined shaft and the auxiliary inclined shaft, and heat exchange is conducted between the wellhead heating modules and the heat storage module. The water source heat pump is used for heating the main inclined shaft and the auxiliary inclined shaft, comprehensive utilization of energy is achieved, a photovoltaic renewable power source is built in combination with the mining area space to provide clean power for mining area heat supply and power utilization systems such as the water source heat pump, and when the mining area power load and the heating load are low in the non-heating season, the water source heat pump can be used for heating the heat storage system. Zero-carbon heat supply for mine area building heat supply and shaft freezing prevention is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy utilization, and particularly relates to a heating system for heating mine buildings and preventing freezing of mine shafts. Background Art

[0002] As a traditional area with high energy consumption and high carbon emissions, the innovation of the heating system in mining areas is extremely urgent. Traditional heating in mining areas mainly relies on coal-fired boilers, which not only have a large carbon footprint but also face environmental protection pressure and energy security issues. At the same time, traditional solar collectors are mostly used for domestic hot water, but the heat collection efficiency is restricted by lighting conditions, unable to guarantee all-weather heating and unable to provide high-quality heat sources, with obvious limitations in terms of economy and environmental protection. Therefore, there is an urgent need for a zero-carbon heating solution that can meet the heating needs of mine buildings and prevent freezing of mine shafts. Summary of the Invention

[0003] In view of this, the present invention provides a heating system for heating mine buildings and preventing freezing of mine shafts, so as to solve the problems that traditional heating in mining areas mainly relies on coal-fired boilers, has a large carbon footprint, and faces environmental protection pressure and energy security. By using the excess heat in the non-heating season for seasonal storage, the heating of mine buildings is solved simultaneously. The hot water generated by the solar collector is used to heat the mine shaft through the water source heat pump module, realizing the efficient operation of the entire system's energy.

[0004] The present invention provides a heating system for heating mine buildings and preventing freezing of mine shafts, comprising:

[0005] A heat collection module for collecting heat using solar energy;

[0006] A heat storage module that exchanges heat with the heat collection module, and the heat storage module is used to store the heat source transferred by the heat collection module and can transfer the heat source to the heat consumption terminal of mine buildings for heating all day long;

[0007] A power supply module for generating electricity using solar energy and storing the electric energy;

[0008] At least one wellhead heating module is arranged at the wellbore positions of the main and auxiliary inclined shafts. The wellhead heating module exchanges heat with the heat storage module. The wellhead heating module uses the heat source transferred by the heat storage module and the electric energy of the power supply module to heat the wellbore, so as to provide anti-freezing hot air for the wellbores of the main and auxiliary inclined shafts.

[0009] The beneficial effects of the above-mentioned heating system for heating buildings in mining areas and preventing freezing of mine shafts are as follows: Through the dual paths of solar heat collection + solar power generation, the present invention utilizes clean energy to replace coal-fired heating, reducing carbon emissions from the source, meeting the zero-carbon heating demand of mining areas, and conforming to the trend of green mine construction. The present invention stores the heat source transferred by the solar heat collection module through the heat storage module, which can continuously supply heat to the heat-using terminals of mining area buildings at night or on rainy and cloudy days, solving the intermittent defect of traditional solar heating and ensuring the stability of building heating. The present invention directly deploys the wellhead heating module at the position of the mine shaft, utilizes the heat source of the heat storage module and the electric energy of the power supply module to generate high-grade heat source, and after heat exchange with the mine shaft, can blow anti-freezing hot air into the mine shaft, specifically solving the anti-freezing scenario of the mine shaft that cannot be covered by traditional heating systems and improving the production safety of mining areas. The present invention integrates the functions of solar heat collection and solar power generation. The electric energy stored in the power supply module can assist the operation of the wellhead heating module, realizing the collaborative utilization of "solar thermal + solar photovoltaic" of solar energy. Compared with a single solar heat collection system, the energy utilization efficiency is higher and the long-term operation cost is lower.

[0010] In an alternative embodiment, the heat storage module includes:

[0011] A short-term heat storage tank body, in which a first heat storage medium is disposed. The short-term heat storage tank body exchanges heat with the heat collection module and with the heat-using terminals of mining area buildings. The first heat storage medium in the short-term heat storage tank body stores the heat generated by the heat collection module during the day, and at night, the heat storage medium in the short-term heat storage tank body exchanges heat with the heat-using terminals of mining area buildings to meet the daily heat demand balance of mining areas;

[0012] A long-term heat storage tank body, in which a second heat storage medium is disposed. The long-term heat storage tank body exchanges heat with the short-term heat storage tank body, with the heat-using terminals of mining area buildings, and with the wellhead heating module. The long-term heat storage tank body is used to supply heat to the heat-using terminals of mining area buildings and the wellhead heating module by seasonal storage of the excess heat in the non-heating season.

[0013] In an alternative embodiment, the first heat storage medium and the second heat storage medium are both water.

[0014] In an alternative embodiment, the heat-using terminals of mining area buildings include administrative welfare building rooms and industrial plant building rooms. The short-term heat storage tank body and / or the long-term heat storage tank body supply heat to the heat-using terminals of mining area buildings, so that the temperature of the administrative welfare building rooms is maintained at 16°C - 20°C, and the temperature of the industrial plant building rooms is maintained at 8°C - 10°C;

[0015] The short-term heat storage tank body and / or the long-term heat storage tank body supply heat to the wellhead heating module, so that the mixed air in the mine shaft is maintained at 2°C.

[0016] In an alternative embodiment, the heat collection module is a concentrating solar collector, which includes a concentrator, a heat collection pipe, a porous heat absorption material, and a fluid working medium. The concentrator is used to concentrate and reflect sunlight onto the heat collection pipe; the inner layer of the heat collection pipe is a fluid working medium channel, in which a fluid working medium is provided. The fluid working medium is a gas or a liquid, and the heat collection pipe is connected to the source of the fluid working medium through a blower or a pump; the outer layer of the heat collection pipe is the porous heat absorption material, which is used to absorb the solar thermal energy reflected by the concentrator and transfer the thermal energy to the fluid working medium in the fluid working medium channel.

[0017] In an alternative embodiment, the wellhead heating module includes:

[0018] A water source heat pump module, one side of which exchanges heat with the long-term heat storage tank body, and the other side of which exchanges heat with a tubular heat exchanger;

[0019] A tubular heat exchanger, one side of which exchanges heat with the water source heat pump module, and the other side of which exchanges heat with the heat consumption terminal for mining area buildings and the shafts of the main and auxiliary inclined shafts respectively.

[0020] In an alternative embodiment, a plurality of tubular heat exchangers are provided and are respectively arranged at the heating station positions on the side parts of the shafts of the main and auxiliary inclined shafts.

[0021] In an alternative embodiment, the water source heat pump module includes an evaporator, a compressor, a condenser, an expansion valve, and a liquid storage tank connected by a refrigerant pipeline. The refrigerant in the evaporator absorbs the heat of the heat storage module and evaporates from a liquid state to a low-temperature and low-pressure gaseous state. The driving heat source of the compressor comes from the power supply module. The compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The condenser exchanges heat between the high-temperature and high-pressure gaseous refrigerant and the tubular heat exchanger and then converts the high-temperature and high-pressure gaseous refrigerant into a high-pressure liquid state. The expansion valve converts the high-pressure liquid refrigerant into a low-temperature and low-pressure liquid state and re-inputs it into the evaporator.

[0022] In an alternative embodiment, the power supply module includes:

[0023] A photovoltaic power generation module, which is used to utilize solar energy to provide the required driving electric energy for the water source heat pump module;

[0024] A wind power generation module, which is used to utilize wind energy to provide the required driving electric energy for the water source heat pump module;

[0025] Energy storage device, which is used to store the surplus electricity and supply power to various electrical devices when needed at night;

[0026] Inverter, which is used to convert direct current into alternating current for use by electrical devices.

[0027] In summary, the technical solution of the present invention has the following advantages:

[0028] The present invention uses the excess heat in summer for seasonal storage to solve the heating of mine buildings at the same time. The hot water generated by the solar collector generates high-temperature hot water through the water source heat pump module, and heats the shaft through the tubular heat exchanger to achieve efficient operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 FIG. is a schematic structural diagram of a heating system for heating mine buildings and preventing freezing of shafts provided by the invention;

[0031] Figure 2 FIG. is a partial structural diagram of a heating system for heating mine buildings and preventing freezing of shafts provided by the invention.

[0032] DESCRIPTION OF THE REFERENCE NUMERALS

[0033] 1 - Heat collection module, 2 - Heat storage module, 3 - Power supply module, 4 - Wellhead heating module, 5 - Short-term heat storage tank body, 6 - Long-term heat storage tank body, 7 - Heat consumption terminal for mine buildings, 8 - Water source heat pump module, 81 - Evaporator, 82 - Compressor, 83 - Condenser, 84 - Expansion valve, 85 - Liquid storage tank, 9 - Tubular heat exchanger, 10 - Shafts of main and auxiliary inclined shafts, 11 - Wind power generation module, 12 - Photovoltaic power generation module, 13 - Energy storage device, 14 - Inverter, 15 - Condenser, 16 - Heat collection pipe. SPECIFIC EMBODIMENTS

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0035] As a traditional area with high energy consumption and high carbon emissions, the innovation of the heating system in mining areas is extremely urgent. The traditional heating in mining areas mainly relies on coal-fired boilers, which not only have a large carbon footprint but also face environmental protection pressure and energy security issues. At the same time, traditional solar thermal collectors are mostly used for domestic hot water, but the heat collection efficiency is restricted by lighting conditions, unable to ensure all-weather heating and provide high-grade heat sources, and there are obvious limitations in terms of economy and environmental protection. Against this background, through the coupling of solar thermal collection, water source heat pump and heat storage technology, it is possible to meet the heating of mining area buildings and wellbore anti-freezing, providing a zero-carbon heating path for mining areas.

[0036] According to an embodiment of the present invention, there is provided a heating system for heating mining area buildings and wellbore anti-freezing, in combination with Figures 1 to 2 As shown, it includes a heat collection module 1, a heat storage module 2, a power supply module 3 and a wellhead heating module 4.

[0037] The heat collection module 1 is used to collect heat using solar energy, and the fluid working medium of the heat collection module 1 is connected to the heat storage module 2 through a pipeline.

[0038] The heat storage module 2 exchanges heat with the heat collection module 1. The heat storage module 2 is used to store the heat source transferred from the heat collection module 1 and can transfer the heat source to the heat consumption terminal 7 of mining area buildings for heating all day long.

[0039] The power supply module 3 is used to generate electricity using solar energy and store the electric energy.

[0040] At least one wellhead heating module 4 is provided. The wellhead heating module 4 is arranged at the wellbore 10 positions of the main and auxiliary inclined shafts. The wellhead heating module 4 exchanges heat with the heat storage module 2. The wellhead heating module 4 can blow air into the wellbore. The wellhead heating module 4 uses the heat source transferred from the heat storage module 2 and the electric energy of the power supply module 3 to heat the wellbore, so as to provide anti-freezing hot air for the wellbores of the main and auxiliary inclined shafts.

[0041] The above heating system for heating mining area buildings and wellbore anti-freezing uses clean energy through the dual paths of solar thermal collection + solar power generation, replaces coal-fired heating, reduces carbon emissions from the source, meets the zero-carbon heating demand of mining areas, and conforms to the trend of green mine construction.

[0042] This system stores the heat source transferred by the solar thermal collection module through the heat storage module, and can continuously supply heat to the heat consumption terminal of mining area buildings at night or on rainy and cloudy days, solving the intermittent defect of traditional solar heating and ensuring the stability of building heating.

[0043] This system is directly deployed at the wellbore position through the wellhead heating module. By using the heat source of the heat storage module and the electric energy of the power supply module to generate high-grade heat sources, after heat exchange with the wellbore, it can blow anti-freeze hot air into the wellbore, specifically solving the wellbore anti-freeze scenario that cannot be covered by traditional heating systems and improving the production safety of the mining area.

[0044] This system integrates solar heat collection and solar power generation functions. The electric energy stored in the power supply module can assist the operation of the wellhead heating module to achieve the coordinated utilization of "solar thermal + solar photovoltaic" of solar energy. Compared with a single solar heat collection system, the energy utilization efficiency is higher and the long-term operation cost is lower.

[0045] In some embodiments, the heat collection module 1 is a concentrating solar collector, and the concentrating solar collector includes a concentrator 15, a heat collection tube 16, a porous heat-absorbing material, and a fluid working medium. The concentrator 15 is used to concentrate and reflect sunlight onto the heat collection tube 16. The inner layer of the heat collection tube 16 is a fluid working medium channel, and a fluid working medium is disposed inside the fluid working medium channel. The fluid working medium is a gas or a liquid, and the liquid is generally water. The heat collection tube is connected to the source of the fluid working medium through a fan or a pump. The outer layer of the heat collection tube 16 is a porous heat-absorbing material, and the porous heat-absorbing material is used to absorb the solar thermal energy reflected by the concentrator 15 and transfer the thermal energy to the fluid working medium in the fluid working medium channel.

[0046] In this embodiment, after sunlight is reflected by the concentrator 15, it is projected onto the surface of the heat collection tube 16, and the heat-absorbing material in the heat collection tube 16 is heated by thermal radiation. The low-temperature fluid working medium exchanges heat with the heat-absorbing material to obtain a high-temperature fluid working medium, and then enters the short-term heat storage tank for heat storage.

[0047] The concentrator 15 concentrates and reflects the scattered sunlight onto the heat collection tube 16, greatly increasing the light intensity density on the surface of the heat collection tube 16, thereby increasing the heat collection temperature. The outer layer of the heat collection tube 16 uses a porous heat-absorbing material, and its porous structure significantly increases the surface area of the material, enabling more efficient absorption of the solar radiation heat energy after concentration; at the same time, the pore structure of the porous material can extend the heat conduction path, reduce heat dissipation to the environment, and transfer more thermal energy to the inner fluid working medium channel. Compared with the single metal or coating structure of traditional heat collection tubes, the heat transfer efficiency of the porous material is higher, further improving the energy utilization rate of the heat collection module 1.

[0048] In some embodiments, the heat storage module includes a short-term heat storage tank body 5 and a long-term heat storage tank body 6.

[0049] The short-term heat storage tank 5 is internally provided with a first heat storage medium, and the first heat storage medium can be water. The short-term heat storage tank 5 exchanges heat with the heat collection module 1 through a first heat exchanger and exchanges heat with the heat consumption terminal 7 for mining area buildings through a second heat exchanger. The first heat exchanger includes a first pipeline. The first pipeline passes through the short-term heat storage tank 5 and is not connected to the first heat storage medium in the short-term heat storage tank 5. The first pipeline is not connected to the medium inside the heat collection module 1, and a first valve is further provided on the first pipeline. The second heat exchanger includes a second pipeline. The second pipeline passes through the short-term heat storage tank 5 and is not connected to the first heat storage medium in the short-term heat storage tank 5. The other side of the second pipeline passes through the long-term heat storage tank 6 and is not connected to the second heat storage medium in the long-term heat storage tank 6, and a second valve is further provided on the second pipeline. The first heat storage medium in the short-term heat storage tank 5 stores the heat generated by the heat collection module 1 during the day. At night, the heat storage medium in the short-term heat storage tank 5 exchanges heat with the heat consumption terminal 7 for mining area buildings to meet the heat consumption demand for daily balance in the mining area.

[0050] The long-term heat storage tank 6 is internally provided with a second heat storage medium, and the second heat storage medium can be water. The long-term heat storage tank 6 exchanges heat with the short-term heat storage tank 5, exchanges heat with the heat consumption terminal 7 for mining area buildings, and exchanges heat with the wellhead heating module 4. The long-term heat storage tank 6 is used to supply heat to the water source heat pump modules of the heat consumption terminal 7 for mining area buildings and the wellhead heating module 4 by using the excess heat in the non-heating season through seasonal storage. Through the long-term heat storage module, the heat of the heat collection system is seasonally balanced to provide heat sources for building heating, shaft antifreeze, etc.

[0051] In this embodiment, the heat storage medium in the long-term heat storage tank 6 stores the excess heat when the solar irradiation intensity is high in summer. In winter or on cloudy days, the heat demand of the heat consumption terminal 7 for mining area buildings and the water source heat pump can be met through the heat exchange between the fluid working medium and the heat storage medium. Since the mining area buildings and shaft antifreeze require heat throughout the day, in this embodiment, a short-term heat storage module is used for daily heat balance. The heat storage medium in the short-term heat storage tank 5 stores the heat during the day and exchanges heat between the fluid working medium and the heat storage medium at night to meet the heat demand of the mining area. The solar heat collection module converts solar energy into heat energy. The fluid working medium of the solar heat collection module is connected to the heat storage module through a pipeline. Through the short-term heat storage module and the long-term heat storage module, the heat of the heat collection system is balanced daily and seasonally to provide heat sources for building heating, shaft antifreeze, etc.

[0052] The heat generated by the heat collection module 1 during the day is stored in the short-term heat storage tank 5 and released to the heat consumption terminal 7 for mining area buildings at night, realizing the heat balance of storing heat during the day and using it at night, directly solving the intermittent defect of solar heating, ensuring that the mining area buildings can still obtain a stable heat source at night or on cloudy and rainy days, and meeting the 24-hour heating demand.

[0053] There are significant seasonal differences in the heating demand of the mining area. A large amount of heat is required for heating and shaft anti-freezing during the winter heating season, while the heat demand is low during the non-heating season. Traditional systems often result in energy waste because they cannot store excess heat. In this embodiment, the long-term heat storage tank 6 collects and stores the excess heat of the short-term heat storage tank 5 during the non-heating season and releases it to the heat consumption terminal 7 of the mining area buildings and the wellhead heating module 4 during the heating season. This seasonal heat storage mode of storing heat in summer and using it in winter greatly improves the annual utilization rate of solar energy and avoids the idle waste of heat during the non-heating season.

[0054] The short-term heat storage tank 5 and the long-term heat storage tank 6 form a two-stage heat storage system. The short-term heat storage responds to short-term heat fluctuations to ensure the continuity of daily heating; the long-term heat storage responds to the long-term mismatch between heat supply and demand to ensure heat supply during extreme weather or peak demand in the heating season. The short-term heat storage tank 5 and the long-term heat storage tank 6 work together to avoid the limitations of a single heat storage mode (only daily storage or only seasonal storage), and significantly improve the overall reliability of the heating system and its ability to handle complex working conditions.

[0055] In some embodiments, the heat consumption terminal 7 of the mining area buildings includes the administrative welfare building room and the industrial plant building room. The heat storage module 2 supplies heat to the mining area buildings and the water source heat pump, ensuring that the indoor temperature of the administrative welfare building is between 16°C and 20°C, the indoor temperature of the industrial plant building is between 8°C and 10°C, and the heating requirement for the wellbore air mixing is 2°C.

[0056] In some embodiments, the wellhead heating module 4 includes a water source heat pump module 8 and a tube heat exchanger 9. One side of the water source heat pump module 8 exchanges heat with the long-term heat storage tank 6, and the other side of the water source heat pump module 8 exchanges heat with the tube heat exchanger 9. The driving heat source of the water source heat pump module 8 comes from the power supply module 3. One side of the tube heat exchanger 9 exchanges heat with the water source heat pump module 8, and the other side of the tube heat exchanger 9 exchanges heat with the heat consumption terminal 7 of the mining area buildings and the wellbores of the main and auxiliary inclined shafts respectively.

[0057] The water source heat pump module 8 includes an evaporator 81, a compressor 82, a condenser 83, an expansion valve 84 and a liquid storage tank 85 connected by a refrigerant pipeline. The refrigerant in the evaporator 81 absorbs the heat of the heat storage module 2 and evaporates from a liquid state to a low-temperature and low-pressure gaseous state. The driving heat source of the compressor 82 comes from the power supply module. The compressor 82 compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The condenser 83 exchanges heat between the high-temperature and high-pressure gaseous refrigerant and the tube heat exchanger 9 and then converts the high-temperature and high-pressure gaseous refrigerant into a high-pressure liquid state. The expansion valve 84 converts the high-pressure liquid refrigerant into a low-temperature and low-pressure liquid state and re-injects it into the evaporator 81.

[0058] In this embodiment, the compressor 82 of the water source heat pump module 8 is powered by solar power generation of the power supply module 3, and its heat source comes from solar heat collection of the heat storage module 2. There is no combustion of fossil fuels during the entire heating process, and zero carbon emissions are achieved in all links.

[0059] The heat storage medium of the heat storage module 2 generates a high-temperature heat source through a water source heat pump, and transfers the heat to the wellhead heating module through a tubular heat exchanger to keep the air temperature at the mine intake wellhead above 2°C to ensure the safe production of the mine.

[0060] More specifically, multiple tubular heat exchangers 9 are provided and are respectively arranged at the heating station positions on the side of the main and auxiliary inclined shafts and are located at the wellhead positions. Multiple water source heat pump modules 8 are also provided.

[0061] In some embodiments, the power supply module 3 includes a photovoltaic power generation module 12, an energy storage device 13, and an inverter 14. The photovoltaic power generation module 12 is used to utilize solar energy to provide the required driving electric energy for electrical equipment such as the compressor 82 of the water source heat pump module 8. The energy storage device 13 is used to store the remaining electric energy and supply power to each electrical equipment when needed at night. Solar power generation is significantly affected by day and night and weather. The addition of the energy storage device 13 can store the remaining electric energy of daytime photovoltaic power generation and release it at night or when the light is insufficient, solving the intermittent defect of solar power generation and ensuring the stable operation of key equipment such as water source heat pumps for 24 hours, and avoiding the risk of shaft freezing or building heating interruption caused by power failure. The inverter 14 is used to convert direct current into alternating current for use by electrical equipment, enabling the power supply module to be compatible with various alternating current electrical equipment in the mining area. In this embodiment, through photovoltaic + energy storage, self-supply and self-storage of electricity are realized, reducing the dependence on external energy.

[0062] In some embodiments, the power supply module 3 further includes a wind power generation module 11, and the wind power generation module 11 is used to utilize wind energy to provide the required driving electric energy for the water source heat pump module 8. Wind power generation and photovoltaic power generation are both zero-carbon energy sources. The superposition of the two further increases the proportion of clean energy in the power supply module. The wind power generation module 11 can efficiently utilize the wind energy resources in the mining area, maximize the excavation of the potential of renewable energy in the mining area, and avoid the waste of resources caused by the limitation of a single energy source (such as only photovoltaic) due to site or climate.

[0063] The present invention uses a water source heat pump module to heat the main and auxiliary inclined shafts, realizes the comprehensive utilization of energy, and combines with the mining area space to establish renewable power sources such as photovoltaic to provide clean electricity for the heating and power consumption systems in the mining area such as the water source heat pump module. When the power load and heating load in the mining area are relatively low in the non-heating season, the water source heat pump module can be used to heat the heat storage system. The present invention realizes zero-carbon heating for building heating and shaft anti-freezing in the mining area.

[0064] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A heating system for heating buildings in mining areas and preventing freezing of mine shafts, characterized in that, Comprising: A heat collection module (1) for collecting heat using solar energy; A heat storage module (2) that exchanges heat with the heat collection module (1), the heat storage module (2) being used to store the heat source transferred by the heat collection module (1) and being able to transfer the heat source to the heat consumption terminal (7) of mining area buildings for heating all day long; An electric power supply module (3) for generating electricity using solar energy and storing the electric energy; At least one wellhead heating module (4) arranged at the shaft positions of the main and auxiliary inclined shafts, the wellhead heating module (4) exchanging heat with the heat storage module (2), the wellhead heating module (4) using the heat source transferred by the heat storage module (2) and the electric energy of the electric power supply module (3) to heat the shaft to provide anti-freezing hot air for the shafts of the main and auxiliary inclined shafts.

2. The heating system for heating buildings in a mining area and preventing freezing of mine shafts according to claim 1, characterized in that, The heat storage module includes: A short-term heat storage tank body (5) with a first heat storage medium therein, the short-term heat storage tank body (5) exchanging heat with the heat collection module (1) and with the heat consumption terminal (7) of mining area buildings, the first heat storage medium of the short-term heat storage tank body (5) storing the heat generated by the heat collection module (1) during the day, and at night, the heat storage medium of the short-term heat storage tank body (5) exchanging heat with the heat consumption terminal (7) of mining area buildings to meet the heat consumption demand for daily balance in the mining area; A long-term heat storage tank body (6) with a second heat storage medium therein, the long-term heat storage tank body (6) exchanging heat with the short-term heat storage tank body (5), with the heat consumption terminal (7) of mining area buildings, and with the wellhead heating module (4), the long-term heat storage tank body (6) being used to supply heat to the heat consumption terminal (7) of mining area buildings and the wellhead heating module (4) through seasonal storage of the excess heat in the non-heating season.

3. The heating system for heating mining area buildings and preventing freezing of mine shafts according to claim 2, characterized in that, The first heat storage medium and the second heat storage medium are both water.

4. The heating system for heating mine buildings and preventing freezing of mine shafts according to claim 2, characterized in that, The heat consumption terminal (7) of mining area buildings includes an administrative welfare building room and an industrial plant building room, the short-term heat storage tank body (5) and / or the long-term heat storage tank body (6) supplying heat to the heat consumption terminal (7) of mining area buildings so that the temperature of the administrative welfare building room is maintained at 16°C - 20°C and the temperature of the industrial plant building room is maintained at 8°C - 10°C; The short-term heat storage tank body (5) and / or the long-term heat storage tank body (6) supply heat to the wellhead heating module (4) so that the mixed air in the shaft is maintained at 2°C.

5. The heating system for heating buildings in a mining area and preventing freezing of mine shafts according to claim 2, characterized in that, The wellhead heating module (4) includes: A water source heat pump module (8) with one side exchanging heat with the long-term heat storage tank body (6) and the other side exchanging heat with a tube heat exchanger (9); A tube heat exchanger (9) with one side exchanging heat with the water source heat pump module (8) and the other side respectively exchanging heat with the heat consumption terminal (7) of mining area buildings and the shafts of the main and auxiliary inclined shafts.

6. The heating system for heating mining area buildings and preventing freezing of mine shafts according to claim 5, characterized in that, A plurality of the tube heat exchangers (9) are provided and are respectively arranged at the heating station positions on the side parts of the shafts of the main and auxiliary inclined shafts.

7. The heating system for heating mine buildings and preventing freezing of mine shafts according to claim 5, characterized in that, The water source heat pump module (8) includes an evaporator (81), a compressor (82), a condenser (83), an expansion valve (84) and a liquid storage tank (85) which are connected by a refrigerant pipeline. The refrigerant in the evaporator (81) absorbs the heat of the heat storage module (2) and evaporates from a liquid state into a low-temperature and low-pressure gaseous state. The driving heat source of the compressor (82) comes from the power supply module. The compressor (82) compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The condenser (83) exchanges heat between the high-temperature and high-pressure gaseous refrigerant and the tube heat exchanger (9) and then converts the high-temperature and high-pressure gaseous refrigerant into a high-pressure liquid state. The expansion valve (84) converts the high-pressure liquid refrigerant into a low-temperature and low-pressure liquid state and re-injects it into the evaporator (81).

8. The heating system for heating mine buildings and preventing freezing of mine shafts according to claim 5, characterized in that The power supply module (3) includes: A photovoltaic power generation module (12), which is used to utilize solar energy to provide the required driving electric energy for the water source heat pump module (8); An energy storage device (13), which is used to store the remaining electric energy and supply power to each electrical device when needed at night; An inverter (14), which is used to convert direct current into alternating current for use by electrical devices.

9. The heating system for heating buildings in a mining area and preventing freezing of mine shafts according to claim 8, characterized in that, The power supply module (3) further includes: A wind power generation module (11), which is used to utilize wind energy to provide the required driving electric energy for the water source heat pump module (8).

10. The heating system for heating buildings in a mining area and preventing freezing of wellbores according to any one of claims 1-9, characterized in that, The heat collection module (1) is a concentrating solar collector, and the concentrating solar collector includes a concentrator (15), a heat collection tube (16), a porous heat absorbing material and a fluid medium. The concentrator (15) is used to concentrate and reflect sunlight onto the heat collection tube (16); the inner layer of the heat collection tube (16) is a fluid medium channel, and a fluid medium is arranged in the fluid medium channel. The fluid medium is a gas or a liquid, and the heat collection tube is communicated with the source of the fluid medium through a fan or a pump body; the outer layer of the heat collection tube (16) is the porous heat absorbing material, and the porous heat absorbing material is used to absorb the solar heat energy reflected by the concentrator (15) and transfer the heat energy to the fluid medium in the fluid medium channel.

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