Carbon dioxide device with automatic supercharging protection function

Abstract

The embodiment of the invention provides a carbon dioxide device with an automatic supercharging protection function. A user monitors the pressure value in an equipment body through a client side in real time, the Internet of Things is effectively used in liquid carbon dioxide equipment under a mine, and when the pressure value in the equipment body is smaller than the preset pressure value, the user can know the situation in time; and in order to guarantee that the state of liquid carbon dioxide in the equipment body does not change along with changes of gas pressure, an intrinsic safety typegas supercharging pump is externally arranged outside an opening of the equipment body so as to achieve the function of supercharging the equipment body when the pressure value in the equipment bodyis smaller than the preset pressure value.

Description

technical field [0001] The invention relates to the technical field of mine underground equipment, in particular to a carbon dioxide device with automatic pressurization protection. Background technique [0002] Liquid carbon dioxide equipment is used for fire prevention and extinguishing in coal mines. The carbon dioxide in the storage tank of the equipment is liquid, low temperature, and medium pressure. During use, the pressure of liquid carbon dioxide in the tank keeps dropping. Transforms into a solid state, forming dry ice. Due to the same mass, the volume of dry ice is larger than that of liquid, and it is solid. It takes a long time for dry ice to melt, and the storage tank cannot be used for a long time (half a month or a month). Since the equipment is an emergency equipment for underground fire extinguishing, it cannot be used for a long time. It will cause huge hidden dangers and losses; in severe cases, the volume of dry ice will expand, causing the storage tank...

AI Technical Summary

Problems solved by technology

Due to the same quality, the volume of dry ice is larger than that of liquid, and it is solid. It takes a long time for dry ice to melt, and the storage tank cannot be used for a long time (half a month or a month). Since the equipment is an emergency equipment for underground fire extinguishing, it cannot be used for a long time. It will cause huge hidden dangers and losses; in severe cases, the volume of dry ice will expand, causing the storage tank to burst, endangering personal and production safety

[0003] At present, the liquid carbon dioxide equipment used in the underground is manually monitored by the pressure gauge to ensure that the pressure will not be lower than 1Mpa. Due to factors such as the accuracy of the pressure gauge, low pressure durability and errors in manual observation, the error rate increases. When the pressure gauge is damaged or Range error; manual negligence or misoperation will cause the pressure to drop below 1Mpa, the equipment is still in use, affecting safety and bringing great hidden dangers to downhole operations

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