Intelligent supercharging device and method for low-temperature thermal insulation container

Abstract

The invention discloses an intelligent supercharging device and method for a low-temperature thermal insulation container. The device comprises the low-temperature thermal insulation container and an electrical control system. A liquid outlet of the low-temperature thermal insulation container is connected with a stop valve through a liquid outlet pipeline. The stop valve is connected with an overflow valve through a liquid outlet pipeline. The overflow valve is connected with a vaporizer through a liquid outlet pipeline. The vaporizer is further internally provided with a heater. The outlet end of the vaporizer is connected with an engine, and the other end of the vaporizer is connected with a buffering tank through a supercharging pipeline. The buffering tank is connected with an air pump through a supercharging pipeline. The air pump is connected with a one-way valve through a supercharging pipeline. The one-way valve is connected with an air inlet in the upper portion of the low-temperature thermal insulation container through a supercharging pipeline. The electrical control system is connected with the heater, the air pump, a pressure sensor installed on the low-temperature thermal insulation container, and a temperature sensor installed at the outlet end of the atomizer through a control circuit. By means of the intelligent supercharging device and method for the low-temperature thermal insulation container, rapid and safe supercharging can be achieved for the low-temperature thermal insulation container within short time.

Description

technical field [0001] The invention belongs to the technical field of low-temperature heat-insulating containers, and in particular relates to an intelligent supercharging device and a supercharging method for low-temperature heat-insulating containers. Background technique [0002] Low-temperature heat-insulated containers have been widely used in industrial production due to their convenience, safety, and refillable characteristics. Cryogenic insulated gas cylinders usually have a double-layer structure including an inner tank and an outer shell. In order to reduce radiation heat transfer, the inner tank needs to be covered with an insulating layer. Cryogenic insulation containers require the container pressure to be maintained at a relatively high constant value to ensure stable liquid supply. However, many existing LNG filling devices for automobiles in China can only provide low-saturated LNG liquid, which cannot guarantee the pressure value and stability of the gas c...

AI Technical Summary

Problems solved by technology

However, many existing LNG filling devices for automobiles in China can only provide low-saturated LNG liquid, which cannot guarantee the pressure value and stability of the gas cylinder, resulting in insufficient liquid supply.

[0003] In order to solve the above problems, the existing low-temperature heat-insulated container uses a finned tube as a vaporizer, and uses the thermal energy of the air to vaporize the low-temperature liquid and fill it into the container to achieve pressurization. This pressurization method takes a long time to pressurize and cannot be realized in a short time. Rapid pressurization, and less and less effective pressurization as the liquid level in the cryogenically insulated vessel gets lower and lower

At the same time, since there is no overcurrent protection device on the booster pipeline, if the booster pipeline breaks, it cannot be cut off, which will pose a safety hazard

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