| CPC F17C 13/026 (2013.01) [F17C 13/025 (2013.01)] | 6 Claims |
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1. A stable liquefied gas supply and heating apparatus, comprising:
a gas supply system including a gas cabinet and an electrical panel box; the gas cabinet being internally provided with a gas panel having a plurality of valves; and the electrical panel box having a control interface for controlling the plurality of valves to open or close;
an upstream gas storage system, including:
a gas storage tank storing a liquefied gas;
a transport pipeline connected to between the gas storage tank and the gas supply system;
a pressure sensor installed on the transport pipeline for detecting pressure changes of the gas and continuously generating a current gas pressure value;
a temperature sensor installed on a surface of the gas storage tank for detecting temperature changes of the gas storage tank and continuously generating a current temperature value; and
an electromagnetic heating device installed on an outer bottom side of the gas storage tank; the electromagnetic heating device including a magnetic control unit capable of causing magnetic flux changes to form an eddy current that quickly heats the liquefied gas in the gas storage tank;
a gas monitoring system being electrically connected to the gas supply system for controlling the plurality of valves in the gas panel; and
a heating control system being electrically connected to the gas supply system, the upstream gas storage system, and the gas monitoring system; the heating control system including a pressure control module for obtaining the current gas pressure value, a temperature control module for obtaining the current temperature value, a human-machine interface electrically connected to the pressure control module and the temperature control module, and a control module electrically connected to the pressure control module, the temperature control module and the electromagnetic heating device;
wherein a pressure parameter of the pressure control module and a temperature parameter of the temperature control module are capable of being changed by the human-machine interface; and the electromagnetic heating device including an over-limit protection switch that is controlled by the control module to ON/OFF automatically, and an abnormality interrupt switch that must be manually reset; and
the over-limit protection switch being controlled by the control module to OFF automatically when any one of the current temperature value and the current gas pressure value is larger than any parameter value of the temperature parameter and the pressure parameter, respectively, such that the electromagnetic heating device is caused to stop heating temporarily; on the other hand, the over-limit protection switch being controlled by the control module to ON automatically when the current gas pressure value or the current temperature value is smaller than the parameter value of the pressure or the current parameter, respectively, such that the electromagnetic heating device is brought to heat again; and
wherein the control module can also be controlled directly by the gas supply system, the gas monitoring system and the human-machine interface to turn off the abnormality interrupt switch, such that an operator may stop the electromagnetic heating device from a remote location.
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