A mine explosion-proof cold source station

Abstract

This invention proposes an explosion-proof cold source station for mines, comprising a protective shell. The interior of the protective shell is divided into a cold storage chamber and a machine compartment by partitions. A first insulation layer is provided on the inner wall of the protective shell and the top side of the partitions in the cold storage chamber. The cold storage chamber has multiple layers of spaced mesh partitions, with a condensation pipe located beneath each mesh partition. The machine compartment houses a refrigeration system, which includes an explosion-proof motor and an explosion-proof compressor. The output end of the explosion-proof motor is connected to the input end of the explosion-proof compressor, and the output end of the explosion-proof compressor is connected to the condensation pipes. This invention enables the storage and storage of cold storage media underground, allowing workers to access the cold storage media immediately for cooling, achieving precise, simple, effective, and rapid cooling for underground workers.

Description

Technical Field

[0001] This utility model relates to the field of mine cooling technology, specifically to an explosion-proof cold source station for mines. Background Technology

[0002] With the large-scale development of mineral resources, many mines have transitioned to deep mining. The rate of increase in coal mining depth is approximately 8-12 meters per year. The temperature of the original rock gradually rises with increasing mining depth, accompanied by the influx of high-temperature fissure water into the underground mining space, leading to high-temperature heat hazards. In hot and humid mines, the high-temperature and humid working environment poses a significant threat to the safety and health of workers. It affects workers' mental state and work efficiency, increasing the risk of accidents. According to relevant provisions of my country's "Safety Regulations for Metal and Non-metal Mines," the temperature control standard for mine workplaces is as follows: the wet-bulb temperature in continuous work areas should not exceed 27℃; if ventilation and cooling cannot meet the requirements, refrigeration or other protective measures should be taken; when the wet-bulb temperature exceeds 30℃, work should be stopped.

[0003] Currently, cooling methods in mines generally involve using large-scale refrigeration units or ventilation systems. However, the high investment costs, enormous electricity consumption, and regular maintenance of large-scale refrigeration units place a significant economic burden on high-temperature mines. Existing ventilation systems rely on centralized, high-flow-rate air supply, resulting in severely uneven distribution of cooling capacity. In some high-temperature working faces, the effective cooling coverage is limited to a certain length of the working face. Therefore, existing cooling methods struggle to achieve precise and rapid cooling.

[0004] In contrast, utilizing phase change cooling suits, emergency cold storage devices, and other cold storage media to improve thermal comfort in high-temperature and high-humidity environments is a precise, simple, effective, and rapid cooling method. However, when not in use, the cold storage media needs to be stored in a low-temperature environment to maintain its cooling capacity. Therefore, there is an urgent need for a small-scale cold source station suitable for underground operations that can store and store cold storage media. Utility Model Content

[0005] To address the problems in the background technology, this utility model proposes an explosion-proof cold source station for mines, comprising a protective shell. The interior of the protective shell is divided into a cold storage chamber and a machine compartment by partitions. A first insulation layer is provided on the inner wall of the protective shell and the top side of the partitions in the cold storage chamber. The cold storage chamber is provided with multiple layers of spaced mesh partitions, and a condensation pipe is provided below each mesh partition. The machine compartment is provided with a refrigeration system, which includes an explosion-proof motor and an explosion-proof compressor. The output end of the explosion-proof motor is connected to the input end of the explosion-proof compressor, and the output end of the explosion-proof compressor is connected to the condensation pipe.

[0006] Preferably, the bottom of the protective shell is equipped with casters.

[0007] Preferably, the protective shell has heat dissipation holes arranged in a rectangular array on the side wall corresponding to the location of the engine compartment.

[0008] Preferably, the output end of the explosion-proof compressor is connected to one end of a refrigerant delivery pipe, and the other end of the refrigerant delivery pipe extends through a partition to the cold storage compartment and is connected to multiple condenser pipes.

[0009] Preferably, the refrigerant delivery pipeline is connected to the condenser pipeline and the output end of the explosion-proof compressor at both ends via flanges.

[0010] Preferably, the outer wall of the refrigerant delivery pipeline is provided with an external insulation layer.

[0011] Preferably, the refrigerator compartment is provided with a partition in the middle, and the outer wall of the partition is provided with a first insulation layer. The refrigerator compartment is divided into two refrigerator chambers, left and right, by the partition. Each refrigerator chamber is provided with multiple layers of the mesh partition. The end of the refrigerant delivery pipeline away from the explosion-proof compressor is connected to two refrigerant delivery branch pipes. The ends of the two refrigerant delivery branch pipes away from the refrigerant delivery pipeline are respectively connected to the condensing pipes in the two refrigerator chambers. Each refrigerant delivery branch pipe is provided with a solenoid valve.

[0012] Preferably, it also includes a control system, which includes a controller, a temperature sensor, and a temperature control switch. The controller is electrically connected to the temperature sensor, the temperature control switch, and the explosion-proof motor. The temperature sensor is installed inside the refrigerator compartment, and the temperature control switch is located on the outer wall of the protective shell.

[0013] Preferably, a fan is installed on the inner wall of the first insulation layer in the cold storage compartment, and the fan is connected to a controller.

[0014] Preferably, a door panel for opening / closing the refrigerator compartment is hinged to one side of the protective shell at the refrigerator compartment, and a first insulation layer is provided on the inner side of the door panel.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention provides a small-scale cold source station for mines, which provides a suitable storage environment for the cold storage medium through active refrigeration of the refrigeration system and cold storage in the cold storage chamber. In emergency situations where the wet-bulb temperature in the mine exceeds the limit, this invention can provide immediate cold source replenishment, enabling workers to quickly and conveniently obtain the cold storage medium for cooling and avoid work interruption.

[0017] This invention occupies little space and can be flexibly deployed underground. Compared to traditional large-scale refrigeration units and ventilation systems, this invention can be placed in a more precise working area, covering high-temperature work points that are difficult for traditional cooling systems to reach, significantly improving the efficiency and effectiveness of local cooling. Furthermore, this invention has lower energy consumption and manufacturing costs compared to large-scale refrigeration units and ventilation systems, reducing the cost of high-temperature control in mines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a perspective view of the internal structure of the protective shell of this utility model;

[0020] Figure 3 This is a front view of the internal structure of the protective shell of this utility model;

[0021] Figure 4 This is a schematic diagram of the bottom structure of the mesh partition of this utility model.

[0022] The following are labeled in the diagram: 1. Protective shell; 2. Mesh partition; 3. Condensation pipe; 4. Heat dissipation hole; 5. Fan; 6. Engine compartment; 7. Refrigeration compartment; 8. Door panel; 9. Divider; 10. Explosion-proof compressor; 11. Explosion-proof motor; 12. Casters; 13. Temperature control switch; 14. First insulation layer. Detailed Implementation

[0023] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0024] In this article, terms such as "inner," "outer," "upper," and "lower" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0025] Combined with appendix Figure 1 -Appendix Figure 4 A mine explosion-proof cold source station includes a protective shell 1. The interior of the protective shell 1 is divided into a cold storage chamber 7 and a machine compartment 6 by partitions. The inner wall of the protective shell 1 and the top side of the partitions in the cold storage chamber 7 are provided with a first insulation layer 14. The cold storage chamber 7 is provided with multiple layers of spaced mesh partitions 2, and each mesh partition 2 is provided with a condensation pipe 3 below it. The machine compartment 6 is provided with a refrigeration system, which includes an explosion-proof motor 11 and an explosion-proof compressor 10. The output end of the explosion-proof motor 11 is connected to the input end of the explosion-proof compressor 10, and the output end of the explosion-proof compressor 10 is connected to the condensation pipe 3.

[0026] The first insulation layer 14 forms a cavity with good insulation effect in the cold storage compartment 7. When the refrigeration system cools the cold storage compartment 7 through the condenser pipe 3, it can ensure that the cold air does not easily escape, thereby ensuring the refrigeration effect of the cold storage compartment 7. The phase change cooling garment and other cold storage media are placed on the mesh partition 2.

[0027] Specifically, the bottom of the protective shell 1 is provided with casters 12. The casters 12 improve the ease of movement of the cold source station and allow for more flexible placement in the required work area. More specifically, there are four casters 12, which are evenly distributed at the four corners of the bottom of the protective shell 1.

[0028] Specifically, the protective shell 1 has heat dissipation holes 4 arranged in a rectangular array on the side wall corresponding to the location of the housing 6. The heat dissipation holes 4 are used to ventilate and dissipate heat from the housing 6, preventing the temperature inside the housing 6 from becoming too high and causing overheating and damage to the equipment in the refrigeration system.

[0029] Specifically, the output end of the explosion-proof compressor 10 is connected to one end of a refrigerant delivery pipe, and the other end of the refrigerant delivery pipe extends through a partition to the cold storage compartment 7 and connects to multiple condenser pipes 3. The refrigerant is delivered to the condenser pipes 3 via the refrigerant delivery pipe.

[0030] More specifically, the refrigerant delivery pipeline is connected at both ends to the condenser pipeline 3 and the output end of the explosion-proof compressor 10 via flanges, respectively. The outer wall of the refrigerant delivery pipeline is provided with an external insulation layer.

[0031] Specifically, the refrigerator compartment 7 is provided with a partition plate 9 in the middle, and the outer wall of the partition plate 9 is provided with a first insulation layer 14. The refrigerator compartment 7 is divided into two refrigerator chambers, left and right, by the partition plate 9. One refrigerator chamber has a temperature above 0°C and can store beverages, etc., while the other refrigerator chamber has a temperature below 0°C and can store phase change materials. Each refrigerator chamber is provided with multiple layers of the mesh partition plate 2. The end of the refrigerant delivery pipe away from the explosion-proof compressor 10 is connected to two refrigerant delivery branch pipes. The ends of the two refrigerant delivery branch pipes away from the refrigerant delivery pipe are respectively connected to the condensing pipes 3 in the two refrigerator chambers. Each refrigerant delivery branch pipe is provided with a solenoid valve. The refrigerant delivery pipes are controlled by solenoid valves. During operation, the refrigeration system first delivers refrigerant to one refrigeration chamber, and the refrigerant delivery pipe corresponding to the other refrigeration chamber is closed by a solenoid valve. After the temperature of the refrigerated chamber reaches the required temperature, its corresponding solenoid valve closes, and the solenoid valve on the other refrigerant delivery pipe is opened, so that the refrigeration system cools the other refrigeration chamber, allowing the two refrigeration chambers to reach different temperatures.

[0032] More specifically, it also includes a control system, which comprises a controller, a temperature sensor, and a temperature control switch 13. The controller is electrically connected to the temperature sensor, the temperature control switch 13, the solenoid valve, and the explosion-proof motor 11. The temperature sensor is installed inside the refrigerator compartment 7, and the temperature control switch 13 is located on the outer wall of the protective shell 1. The desired cooling temperature is preset via the temperature control switch 13. The controller adjusts the operating power of the explosion-proof motor 11 according to the preset temperature, enabling the explosion-proof motor 11 to drive the explosion-proof compressor 10 at the required power, thereby controlling the cooling effect to achieve the desired temperature. The temperature sensor monitors the temperature inside the refrigerator compartment 7 to ensure that the refrigerator compartment 7 is at the desired temperature. Specifically, each refrigerator compartment is equipped with a temperature sensor, and the temperature of the corresponding refrigerator compartment is controlled through the cooperation of the temperature sensor and the refrigeration system.

[0033] Specifically, a fan 5 is installed on the inner wall of the first insulation layer 14 in the cold storage compartment 7, and the fan 5 is connected to a controller. The fan 5 blows air through the condenser pipe 3 to accelerate the diffusion of cold air and improve the cooling effect. More specifically, each cold storage compartment may be equipped with one of the aforementioned fans 5.

[0034] Specifically, a door panel 8 for opening / closing the refrigerator compartment 7 is hinged to one side of the protective shell 1 at the refrigerator compartment 7. The door panel 8 has a first insulation layer 14 on its inner side. Workers can access the cold storage medium in the refrigerator compartment 7 by opening or closing the door panel 8.

[0035] The first insulation layer 14 and the outer insulation layer are made of insulation materials, such as polyurethane foam or rock wool. All devices used in the mine explosion-proof cold source station are mine explosion-proof devices; for example, the door panel 8, protective shell 1, refrigerant delivery pipeline, refrigerant delivery branch pipe, and mesh partition 2 are made of explosion-proof materials (such as carbon steel or stainless steel). The controller, temperature sensor, fan 5, explosion-proof motor 11, explosion-proof compressor 10, and temperature control switch 13 are powered by a power source. A bracket can be fixed inside the protective shell 1, serving as the skeleton of the protective shell 1 to improve its robustness.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mine explosion-proof cold source station, characterized in that: The system includes a protective shell (1), which is divided into a cold storage compartment (7) and a machine compartment (6) by a partition. The inner wall of the protective shell (1) in the cold storage compartment (7) and the top side of the partition are provided with a first insulation layer (14). The cold storage compartment (7) is provided with a multi-layer mesh partition (2) with intervals. Each mesh partition (2) is provided with a condensing pipe (3) below it. The machine compartment (6) is provided with a refrigeration system, which includes an explosion-proof motor (11) and an explosion-proof compressor (10). The output end of the explosion-proof motor (11) is connected to the input end of the explosion-proof compressor (10), and the output end of the explosion-proof compressor (10) is connected to the condensing pipe (3).

2. The mine explosion-proof cold source station according to claim 1, characterized in that: The protective shell (1) is equipped with casters (12) at the bottom.

3. The mine explosion-proof cold source station according to claim 1, characterized in that: The protective shell (1) has heat dissipation holes (4) arranged in a rectangular array on the side wall corresponding to the position of the engine compartment (6).

4. The mine explosion-proof cold source station according to claim 1, characterized in that: The output end of the explosion-proof compressor (10) is connected to one end of a refrigerant delivery pipe, and the other end of the refrigerant delivery pipe extends through the partition to the cold storage room (7) and is connected to multiple condensing pipes (3).

5. A mine explosion-proof cold source station according to claim 4, characterized in that: The refrigerant delivery pipeline is connected at both ends to the condenser pipeline (3) and the output end of the explosion-proof compressor (10) via flanges.

6. A mine explosion-proof cold source station according to claim 4 or 5, characterized in that: The refrigerant delivery pipeline has an external insulation layer on its outer wall.

7. A mine explosion-proof cold source station according to claim 4, characterized in that: The cold storage compartment (7) is provided with a partition plate (9) in the middle. The outer wall of the partition plate (9) is provided with a first insulation layer (14). The cold storage compartment (7) is divided into two cold storage chambers on the left and right by the partition plate (9). Each cold storage chamber is provided with multiple layers of the mesh partition plate (2). The end of the refrigerant delivery pipe away from the explosion-proof compressor (10) is connected to two refrigerant delivery branch pipes. The ends of the two refrigerant delivery branch pipes away from the refrigerant delivery pipe are respectively connected to the condensing pipes (3) in the two cold storage chambers. Each refrigerant delivery branch pipe is provided with a solenoid valve.

8. A mine explosion-proof cold source station according to claim 7, characterized in that: It also includes a control system, which includes a controller, a temperature sensor and a temperature control switch (13). The controller is electrically connected to the temperature sensor, the temperature control switch (13), the solenoid valve and the explosion-proof motor respectively. The temperature sensor is installed in the cold storage compartment (7) and the temperature control switch (13) is located on the outer wall of the protective shell (1).

9. A mine explosion-proof cold source station according to claim 8, characterized in that: A fan (5) is installed on the inner wall of the first insulation layer (14) in the cold storage compartment (7), and the fan (5) is connected to the controller.

10. A mine explosion-proof cold source station according to claim 1, characterized in that: The protective shell (1) of the cold storage compartment (7) is hinged to a door panel (8) for opening / closing the cold storage compartment (7) on one side, and a first insulation layer (14) is provided on the inner side of the door panel (8).

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