CN-116220785-B - Mining air conditioning unit and control method thereof

Abstract

The invention discloses a mining air conditioning unit and a control method thereof, wherein the mining air conditioning unit comprises a wind mixing system, a refrigerating host and a cooling tower, wherein the wind mixing system comprises a multi-stage combined cabinet and is movably arranged in a fresh air roadway and/or a coal mining area, the refrigerating host is connected with the wind mixing system and is positioned outside a mine, and the cooling tower is connected with the refrigerating host and is positioned at an outlet of a ventilation air roadway. The invention solves the problems of single function and low efficiency of the mine refrigeration equipment in the prior art, ensures the comfort of the whole roadway on the premise that the temperature drop of the working face of the coal face meets the requirement, improves the overall comfort under the mine, and improves the use efficiency of the refrigeration equipment and the working efficiency under the mine.

Inventors

• ZHAO HANG
• LI YANG

Assignees

• 珠海格力电器股份有限公司

Dates

Publication Date

20260505

Application Date

20230406

Claims (10)

1. 1. The mining air conditioning unit is applied to a mine, and the mine comprises a fresh air roadway, a coal mining area and a ventilation air roadway, and is characterized by comprising: the air mixing system (1) comprises a multi-stage combined cabinet which is movably arranged in the fresh air tunnel and/or the coal mining area, wherein the combined cabinets are arranged at different intervals, so that the cooling and dehumidification of the whole tunnel or the cooling of a coal mining working face can be met, and when the tunnel has working requirements, the arrangement mode of the combined cabinets can be intelligently moved; the refrigeration host (2) is connected with the air mixing system (1) and is positioned in the mine; The cooling tower (3) is connected with the refrigerating host (2) and is positioned at the outlet of the ventilation air methane roadway; The combined cabinet comprises a surface cooler (4) comprising a water inlet pipe (41) and a water outlet pipe (42), a hydraulic turbine device (5) connected with the water outlet pipe (42), and fan blades (6) connected with the hydraulic turbine device (5).
2. 2. A mining air conditioning unit control method applied to the mining air conditioning unit as claimed in claim 1, comprising: Monitoring whether a fresh air roadway works or not; If yes, detecting the temperature parameters of the mine, wherein the temperature parameters at least comprise the temperature of a coal mining area and the temperature of a fresh air roadway; And controlling the multistage combination cabinet of the air mixing system to move according to the temperature parameters.
3. 3. The method of claim 2, wherein controlling the movement of the multi-stage combination sideboard of the air mixing system according to the temperature parameter comprises: Judging whether the temperature of the coal mining area is greater than or equal to the highest comfortable temperature of the coal mining area; if yes, the multi-stage combined cabinet is controlled to move towards the coal mining area; Otherwise, judging whether the temperature of the fresh air tunnel is greater than or equal to the highest comfortable temperature of the fresh air tunnel; And when the temperature of the fresh air tunnel is greater than or equal to the highest comfortable temperature of the fresh air tunnel, controlling the multistage combined cabinet to move towards the fresh air tunnel.
4. 4. The method of claim 2, further comprising, after controlling the movement of the multi-stage assembly of the air mixing system according to the temperature parameter: detecting fresh air temperature and temperature parameters of a mining air conditioning unit, wherein the temperature parameters at least comprise air outlet temperature and condensing temperature; and determining the opening numbers of the refrigeration host and the cooling tower according to the fresh air temperature and the temperature parameter, and controlling the operation of the refrigeration host and the cooling tower.
5. 5. The method of claim 4, wherein determining the number of refrigeration hosts and cooling towers to open based on the fresh air temperature and the temperature parameter comprises: Determining initial opening numbers of the refrigeration host and the cooling tower according to the fresh air temperature; After the refrigeration host and the cooling tower run according to the initial opening number, determining the final opening number of the refrigeration host according to the air outlet temperature and the power parameter of the refrigeration host, and determining the final opening number of the cooling tower according to the condensing temperature and the power parameter of the cooling tower.
6. 6. The method of claim 5, wherein determining an initial number of starts of the refrigeration host and the cooling tower based on the fresh air temperature comprises: when the fresh air temperature is higher than a first preset temperature, the initial starting number is n1; When the fresh air temperature is greater than a second preset temperature and less than or equal to the first preset temperature, the initial starting number is n2; when the fresh air temperature is smaller than the second preset temperature, the initial starting number is n3, wherein n4 is not smaller than n3< n2< n1 is not smaller than n0, n4 is a preset minimum number, and n0 is a preset maximum number.
7. 7. The method of claim 5, wherein determining a final number of starts of the refrigeration host based on the outlet air temperature and a power parameter of the refrigeration host, comprises: When the air outlet temperature reaches a preset condition, detecting the initial running power of the refrigeration host; Controlling to close the preset number of refrigeration hosts, wherein the current opening number of the refrigeration hosts is the number of the regulating opening number; Re-detecting the air outlet temperature, and detecting the current running power of the refrigeration host when the air outlet temperature reaches the preset condition; and determining the final starting number of the refrigeration host according to the initial running power and the current running power.
8. 8. The method of claim 7, wherein determining a final number of turns on of the refrigeration host based on the initial operating power and the current operating power comprises: when the initial running power is greater than or equal to the current running power, determining the final opening number as the adjustment opening number; and when the initial running power is smaller than the current running power, determining the final starting number as the initial starting number.
9. 9. The method of claim 5, wherein determining a final number of starts of the cooling tower based on the condensing temperature and a power parameter of the cooling tower comprises: Controlling the cooling tower to be closed; Detecting whether the condensing temperature is greater than or equal to a preset condensing temperature maximum value after the cooling tower runs for a preset time; If yes, the operation power of the cooling tower is obtained; Otherwise, detecting whether the current opening number of the cooling tower reaches a preset opening number, acquiring the running power of the cooling tower when the current opening number of the cooling tower reaches the preset opening number, and otherwise, triggering the cooling tower to be controlled to be closed; And determining the minimum value of the operation power of the cooling tower, wherein the opening number of the cooling tower corresponding to the minimum value of the operation power is the final opening number of the cooling tower.
10. 10. A storage medium containing computer executable instructions which, when executed by a computer processor, are for performing the mining air conditioning unit control method of any of claims 2 to 9.

Description

Mining air conditioning unit and control method thereof Technical Field The invention relates to the technical field of air conditioners, in particular to a mining air conditioning unit and a control method thereof. Background With the increase of mine exploitation depth, mine heat damage is increasingly prominent, and the health of underground workers and the safe production of coal mines are seriously affected, so that the heat damage becomes a bottleneck for restricting the efficient exploitation of the coal mines. The existing mine cooling equipment and technology are more, but the problems of high investment of concentrated cooling equipment, high energy consumption, high fresh air waste, high underground water temperature, easy stopping of operation and the like exist. In addition, refrigeration equipment is generally concentrated on the coal face for cooling, and cooling requirements in the whole mine are difficult to meet, and equipment efficiency is low. Aiming at the problems of single function and low efficiency of mine refrigeration equipment in the related technology, no effective solution is proposed at present. Disclosure of Invention The invention provides a mining air conditioning unit and a control method thereof, which at least solve the problems of single function and low efficiency of mine refrigeration equipment in the prior art. In order to solve the technical problems, according to one aspect of the embodiment of the invention, the invention provides a mining air conditioning unit, which is applied to a mine, wherein the mine comprises a fresh air roadway, a coal mining area and a ventilation air roadway, and the mining air conditioning unit comprises: The air mixing system comprises a multi-stage combined cabinet and is movably arranged in a fresh air roadway and/or a coal mining area; the refrigerating host is connected with the air mixing system and is positioned in the mine; and the cooling tower is connected with the refrigerating host and is positioned at the outlet of the ventilation air roadway. Further, the combination sideboard includes: the surface cooler comprises a water inlet pipe and a water outlet pipe; the hydraulic turbine device is connected with the water outlet pipe; And the fan blade is connected with the hydraulic turbine device. According to another aspect of the embodiment of the present invention, there is provided a control method of a mining air conditioning unit, which is applied to the mining air conditioning unit as described above, including: Monitoring whether a fresh air roadway works or not; if yes, detecting the temperature parameters of the mine, wherein the temperature parameters at least comprise the temperature of a coal mining area and the temperature of a fresh air roadway; and controlling the multistage combined cabinet of the air mixing system to move according to the temperature parameters. Further, according to the multistage combination sideboard of temperature parameter control mixing wind system removes, includes: judging whether the temperature of the coal mining area is greater than or equal to the highest comfortable temperature of the coal mining area; if yes, the multi-stage combined cabinet is controlled to move towards the coal mining area; Otherwise, judging whether the temperature of the fresh air tunnel is more than or equal to the highest comfortable temperature of the fresh air tunnel; and when the temperature of the fresh air tunnel is greater than or equal to the highest comfortable temperature of the fresh air tunnel, controlling the multistage combined cabinet to move towards the fresh air tunnel. Further, after the multi-stage combination sideboard of the air mixing system is controlled to move according to the temperature parameter, the method further comprises the following steps: detecting fresh air temperature and temperature parameters of a mining air conditioning unit, wherein the temperature parameters at least comprise air outlet temperature and condensation temperature; And determining the opening numbers of the refrigeration host and the cooling tower according to the fresh air temperature and the temperature parameter, and controlling the operation of the refrigeration host and the cooling tower. Further, determining the number of opening of the refrigeration host and the cooling tower according to the fresh air temperature and the temperature parameter, including: Determining initial opening numbers of the refrigeration host and the cooling tower according to the fresh air temperature; After the cooling host and the cooling tower run according to the initial opening number, the final opening number of the cooling host is determined according to the air outlet temperature and the power parameter of the cooling host, and the final opening number of the cooling tower is determined according to the condensing temperature and the power parameter of the cooling tower. Further, determining initial opening numbers