Low-temperature hot water drying system for coal mine receiving and dispatching room
By combining solar water heaters and air source heat pump water heaters with shower water heaters and garment dryers, a low-temperature hot water drying system is provided, solving the pollution and safety problems of traditional coal mine drying methods and achieving efficient and safe clothing drying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYUN INTERNATIONAL ENGINEERING CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional coal-fired boiler heating and drying methods cause serious pollution, electric drying systems consume a lot of electricity and pose safety hazards, and steam drying systems require special facilities and increased humidity. There is an urgent need for drying clothes in coal mines, and a clean and safe drying method is required.
By using solar water heaters and air source heat pump water heaters, combined with bathing water heaters and clothes dryers in the receiving and dispatching room, low-temperature hot water drying is achieved, avoiding the safety hazards caused by high energy consumption and improving the utilization rate of low-temperature hot water.
It enables rapid drying of clothing, reduces energy consumption, minimizes safety hazards, ensures safe production within coal mines, extends the lifespan of clothing, and is suitable for various coal mine workwear materials.
Smart Images
Figure CN224412149U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clothing drying technology in coal mines, specifically relating to a low-temperature hot water drying system for clothing receiving and dispatching rooms in coal mines. Background Technology
[0002] With the increasing emphasis placed on environmental protection by the state, the coal mining industry faces stringent environmental regulations. Traditional coal-fired boiler heating and drying methods generate large amounts of pollutants, such as sulfur dioxide, nitrogen oxides, and dust, causing serious environmental pollution and failing to meet environmental requirements, and are gradually being phased out. Coal mining enterprises need to find cleaner and more environmentally friendly drying methods to replace traditional coal-fired boiler systems. Furthermore, my country has set clear energy conservation and emission reduction targets, and coal mining enterprises, as key energy consumers and pollutant emitters, need to actively take measures to reduce energy consumption and carbon emissions.
[0003] The working environment underground in coal mines is humid, and workers' clothes easily become soaked with sweat and groundwater. If wet clothes are not dried promptly, workers are prone to catching colds, rheumatism, and other illnesses, affecting their health. Low-temperature hot water drying systems can quickly and effectively dry clothes, ensuring that workers can change into dry clothes immediately after coming up from the mine, protecting their health. Furthermore, compared to traditional high-temperature drying methods, low-temperature hot water drying systems have lower energy consumption and higher energy efficiency.
[0004] Currently, traditional electric drying systems and steam drying systems are used for drying clothes in coal mines, but these systems have the following drawbacks: 1) Traditional electric drying systems rely mainly on the conversion of electrical energy into heat energy to achieve the drying function, resulting in high energy consumption and high electricity costs over the long term. Mine electric drying equipment typically has high power, and its start-up and operation can cause significant load impacts on the power grid. This requires the coal mine's power supply system to have sufficient capacity and stability to meet the equipment's power demands, potentially requiring upgrades to the existing power grid infrastructure, increasing initial construction investment and subsequent maintenance costs. Furthermore, the electrical equipment is relatively concentrated in the room. When the electric drying equipment is working, the internal heating elements generate high temperatures. If the equipment's heat dissipation system malfunctions, or if the dried material comes into contact with the heating elements, a fire can easily occur. Therefore, there are potential safety hazards such as fire and electrical leakage in the garment receiving and dispensing area, which is detrimental to personnel safety.
[0005] 2) Traditional steam drying systems require a stable steam supply. If there are no brick factories, power plants, or chemical plants nearby that can provide steam resources, dedicated steam boilers or other equipment must be built to generate steam, which increases construction costs and operational complexity. Furthermore, during the drying process, the steam releases heat and condenses into water, increasing the humidity of the surrounding environment. In the relatively humid environment of a coal mine, this can further exacerbate the humidity, causing corrosion and other adverse effects on equipment and surrounding facilities, and potentially impacting the working environment and health of workers.
[0006] Therefore, there is an urgent need to design a drying system that can use low-temperature hot water to dry clothes hanging in the receiving and dispatching rooms of coal mines, so as to avoid the safety hazards caused by high power consumption. Utility Model Content
[0007] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a low-temperature hot water drying system for the receiving and dispatching room in a coal mine. By setting up a solar hot water tank and an air source heat pump hot water unit, a portion of the hot water used in the bathroom is circulated for drying clothes in the receiving and dispatching room dryer. This can improve the utilization rate of low-temperature hot water and avoid the safety hazards caused by high power consumption, effectively ensuring safe production inside the coal mine.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: a low-temperature hot water drying system for a coal mine receiving and dispatching room, comprising a solar collector tube, a solar hot water tank, an air source heat pump hot water unit, a bathing hot water tank, and a receiving and dispatching room dryer;
[0009] The solar water tank is connected to the solar collector tube through inlet and outlet water pipes to transmit hot and cold water in both directions. The solar water tank is equipped with a temperature sensor, a water pump and a temperature probe. The solar water tank is externally connected to a water pump temperature control switch, which is electrically connected to the water pump and the temperature probe respectively.
[0010] The solar water tank and the air source heat pump water heater are connected to the bathing hot water tank through the solar water supply pipeline and the air source heat pump hot water inlet and outlet pipeline, respectively, to transmit hot water. The bathing hot water tank is connected to the receiving and dispatching clothes dryer and the bathroom shower head through the outlet pipeline, respectively, to transmit hot water, and is connected to the receiving and dispatching clothes dryer through the return water pipeline to recover cold water.
[0011] The bathing hot water tank is equipped with a temperature sensor and two temperature probes inside. The bathing hot water tank is equipped with a water supply pump and externally connected to a water supply pump temperature control switch and an air source heat pump temperature control switch. The water supply pump temperature control switch is electrically connected to the water supply pump and one of the temperature probes, and the air source heat pump temperature control switch is electrically connected to the air source heat pump water heater and the other temperature probe.
[0012] Furthermore, the garment dryer in the receiving and dispatching room is provided in two units, which are arranged in series.
[0013] Furthermore, the garment dryer is composed of a fan, a coil, and a 45° air outlet hood connected in sequence, wherein the coil is connected to the water outlet pipe of the hot water tank for bathing.
[0014] Furthermore, the 45° air outlet shroud is made of stainless steel.
[0015] The beneficial effects of this utility model are:
[0016] 1) This utility model system circulates a portion of the hot water used in the bathroom to the clothes drying machine in the receiving and dispatching room by setting up a solar hot water tank and an air source heat pump hot water unit. This can improve the utilization rate of low-temperature hot water and avoid the safety hazards caused by high power consumption, effectively ensuring safe production inside the coal mine.
[0017] 2) The system of this utility model uses a solar hot water tank and an air source heat pump hot water unit to supply hot water for drying clothes. The drying temperature is relatively low, which can ensure that the clothes are dried quickly and avoid damage to the clothes caused by high temperature. It is suitable for various coal mine work clothes materials and extends the service life of the clothes.
[0018] 3) Compared with traditional electric drying systems, this utility model system consumes less electricity and has a smaller impact on the coal mine power grid; it also has fewer electrical devices in the room, reducing safety hazards such as fire and leakage in the garment receiving and dispatching room, which helps to ensure the safety of personnel in the coal mine. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the system connection structure of this utility model;
[0020] Figure 2 for Figure 1 Structural plan of the central receiving and dispatching garment dryer;
[0021] Figure 3 for Figure 2 Cross-sectional view along the AA direction.
[0022] In the diagram, 1-Solar collector tube, 2-Solar hot water tank, 3-Air source heat pump water heater unit, 4-Bath hot water tank, 5-Dryer for receiving and sending clothes, 501-Fan, 502-Coil, 503-45° air outlet cover, 6-Water pump, 7-Water pump temperature control switch, 8-Solar water supply pipeline, 9-Make-up water pump temperature control switch, 10-Air source heat pump temperature control switch, 11-Make-up water pump, 12-Air source heat pump hot water inlet and outlet pipeline, 13-Return water pipeline, 14-Outlet water pipeline, 15-Bathroom shower head. Detailed Implementation
[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0024] Example: Figure 1 As shown, this utility model provides a low-temperature hot water drying system for a coal mine garment receiving and dispatching room, including a solar collector tube 1, a solar hot water tank 2, an air source heat pump hot water unit 3, a bathing hot water tank 4, and a garment receiving and dispatching room dryer 5; two garment receiving and dispatching room dryers 5 are installed, and the two garment receiving and dispatching room dryers 5 are arranged in series.
[0025] The solar water tank 2 is connected to the solar collector tube 1 through inlet and outlet water pipes for bidirectional transmission of hot and cold water. The solar water tank 2 is equipped with a temperature sensor, a water pump 6 and a temperature probe. The solar water tank 2 is externally connected to a water pump temperature control switch 7, which is electrically connected to the water pump 6 and the temperature probe respectively.
[0026] The solar water tank 2 and the air source heat pump water heater 3 are connected to the bathing hot water tank 4 through the solar water supply pipeline 8 and the air source heat pump hot water inlet and outlet pipeline 12, respectively, to transmit hot water. The bathing hot water tank 4 is connected to the receiving and dispatching clothes dryer 5 and the bathroom shower head 15 through the outlet pipeline 14 to transmit hot water, and is connected to the receiving and dispatching clothes dryer 5 through the return water pipeline 13 to recover cold water.
[0027] The hot water tank 4 is equipped with a temperature sensor and two temperature probes. The hot water tank 4 is externally connected to a water supply pump 11 and a water supply pump temperature control switch 9 and an air source heat pump temperature control switch 10. The water supply pump temperature control switch 9 is electrically connected to the water supply pump 11 and one of the temperature probes. The air source heat pump temperature control switch 10 is electrically connected to the air source heat pump water heater 3 and the other temperature probe. The other end of the water supply pump 11 is connected to domestic water.
[0028] The effective volume of solar water tank 2 is 10m³. 3 The air source heat pump water heater unit 3 has a heating capacity of 135kW and an electrical power of 34.5kW; the effective volume of the bathing hot water tank 4 is 30m³. 3 The 5-unit garment dryer has a heating capacity of 30kW and an air volume of 3000m³ / h. 3 / h, wind pressure is 100~300Pa, and the electric power of the fan is 3kW.
[0029] like Figure 2 and Figure 3 As shown, the clothes dryer 5 is composed of a fan 501, a coil 502, and a 45° air outlet hood 503 connected in sequence. The coil 502 is connected to the water outlet pipe 14 of the hot water tank 4. The 45° air outlet hood 503 is made of stainless steel.
[0030] Work process:
[0031] The solar collector tube 1 heats the circulating hot water and stores it in the solar hot water tank 2. The solar hot water tank 2 is equipped with a water pump 6 and a temperature sensor, and is connected to an external water pump temperature control switch 7. When the temperature sensor of the water pump temperature control switch 7 detects that the water temperature is higher than 55℃, the water pump 6 turns on to supply water to the bathing hot water tank 4. When the temperature sensor of the temperature control switch 7 detects that the water temperature is lower than 50℃, the water pump 6 stops supplying water to the bathing hot water tank 4.
[0032] The hot water tank 4 is equipped with two temperature sensors, which are connected to the external water supply pump temperature control switch 9 and the air source heat pump temperature control switch 10, respectively. When the temperature sensor of the water supply pump temperature control switch 9 detects that the water temperature is higher than 40℃, the water supply pump 8 is turned on; when the temperature sensor of the water supply pump temperature control switch 9 detects that the water temperature is 40℃, the water supply pump 8 is turned off.
[0033] When the temperature sensor of the air source heat pump temperature control switch 10 detects that the water temperature is below 35°C, the air source heat pump water heater 3 turns on to circulate and heat the water; when the temperature sensor of the air source heat pump temperature control switch 10 detects that the water temperature is 40°C, the air source heat pump water heater 3 turns off; at this time, the outlet water temperature in the bathing hot water tank 4 is always maintained at 40°C.
[0034] Part of the hot water in the shower hot water tank 4 is used for showering in the bathroom, and the other part flows into the garment dryer 5 in the receiving and dispatching room. The location of the garment dryer 5 can be adjusted according to the hanging height and position of the clothes in the receiving and dispatching room.
[0035] like Figure 2 and Figure 3 As shown, the garment dryer 5 in the receiving and dispatching room specifically includes a fan 501, a coil 502, and a 45° air outlet hood 503. The low-temperature hot water in the coil 502 comes from the bath hot water tank 4. The indoor air in the receiving and dispatching room passes through the fan 501, is heated by the low-temperature hot water in the coil 502, and is blown from the 45° air outlet hood 503 to the indoor hanging area to dry the clothes.
[0036] The 45° air outlet cover 503 can be adjusted according to the hanging height and position of clothes in the receiving and dispatching room.
[0037] This utility model system circulates a portion of the hot water used in the bathroom to the clothes dryer in the receiving and dispatching room by setting up a solar hot water tank and an air source heat pump hot water unit. This can improve the utilization rate of low-temperature hot water and avoid the safety hazards caused by high power consumption, effectively ensuring safe production inside the coal mine.
[0038] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A low-temperature hot water drying system for a coal mine receiving and dispatching room, characterized in that: It includes solar collector tubes (1), solar water tank (2), air source heat pump water heater (3), bathing hot water tank (4) and clothes dryer (5); The solar water tank (2) is connected to the solar collector tube (1) through the inlet and outlet water pipes to transmit hot and cold water in both directions. The solar water tank (2) is equipped with a temperature sensor, a water pump (6) and a temperature probe. The solar water tank (2) is externally connected to a water pump temperature control switch (7), which is electrically connected to the water pump (6) and the temperature probe respectively. The solar water tank (2) and the air source heat pump water heater (3) are connected to the bathing water tank (4) through the solar water supply pipeline (8) and the air source heat pump water inlet and outlet pipeline (12) respectively to transmit hot water. The bathing water tank (4) is connected to the receiving and dispatching clothes dryer (5) and the bathroom shower head (15) through the outlet pipeline (14) respectively to transmit hot water, and is connected to the receiving and dispatching clothes dryer (5) through the return water pipeline (13) to recover cold water. The bathing hot water tank (4) is equipped with a temperature sensor and two temperature probes inside. The bathing hot water tank (4) is equipped with a water supply pump (11) and externally connected to a water supply pump temperature control switch (9) and an air source heat pump temperature control switch (10). The water supply pump temperature control switch (9) is electrically connected to the water supply pump (11) and one of the temperature probes, respectively. The air source heat pump temperature control switch (10) is electrically connected to the air source heat pump water heater (3) and the other temperature probe, respectively.
2. The low-temperature hot water drying system for the coal mine receiving and dispatching room according to claim 1, characterized in that: Two garment dryers (5) are provided, and the two garment dryers (5) are arranged in series.
3. The low-temperature hot water drying system for a coal mine receiving and dispatching room according to claim 1 or 2, characterized in that: The receiving and dispatching clothes dryer (5) is composed of a fan (501), a coil (502), and a 45° air outlet hood (503) connected in sequence, wherein the coil (502) is connected to the water outlet pipe (14) of the bath hot water tank (4).
4. A low-temperature hot water drying system for a coal mine receiving and dispatching garment room according to claim 3, characterized in that: The 45° air outlet cover (503) is made of stainless steel.