Oxygen filling monitoring device

Abstract

The invention discloses an oxygen filling monitoring device, and relates to the technical field of oxygen filling of oxygen cylinders. The device comprises a liquid oxygen tank, a liquid oxygen pump,a vaporizer, a bus bar, an oxygen cylinder and a vacuum pump, wherein a 1# pipeline is arranged between the liquid oxygen tank and the liquid oxygen pump, a 2# pipeline is arranged between the liquidoxygen pump and the vaporizer, a 3# pipeline is arranged between the vaporizer and the bus bar, a 4# pipeline is arranged between the bus bar and the oxygen cylinder, a 5# pipeline is arranged betweenthe oxygen cylinder and the vacuum pump, the oxygen cylinder is provided with an emptying pipe and a monitoring pipe, the inner cavity of the monitoring pipe is provided with an internal detection device, the outer wall of the oxygen cylinder is provided with an external detection device, and the output ends of the internal detection device and the external detection device are connected with a display device. The oxygen filling monitoring device can monitor the temperature and air pressure inside the oxygen cylinder and monitor the side wall temperature of the oxygen cylinder during the oxygenation operation of the oxygen cylinder, so as to ensure that personnel can easily observe the actual state of the oxygen cylinder.

Description

technical field [0001] The invention relates to the technical field of filling oxygen into an oxygen cylinder, in particular to an oxygen filling monitoring device. Background technique [0002] Oxygen cylinders are high-pressure containers used to store and transport oxygen. They are generally made of alloy structural steel by hot punching and pressing, and are cylindrical in shape. They are widely used in welding, hospitals and other fields. In order to ensure the cost of using oxygen cylinders, oxygen cylinders can be filled and reused. The general filling process is as follows: first, clean the surface of the oxygen cylinder, then vacuumize the oxygen cylinder, and then connect it to the bus bar , the liquid oxygen stored in the liquid oxygen tank is vaporized in the vaporizer through the liquid oxygen pump, and then introduced into the oxygen cylinder through the bus bar to complete the oxygenation operation. [0003] However, since the oxygen in the oxygen cylinder is...

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Problems solved by technology

[0003] However, because the oxygen in the oxygen cylinder is a high-pressure gas, if it exceeds the tolerance limit of the oxygen cylinder, it is prone to explosion and is very dangerous. Therefore, it is very important to monitor the pressure value in the oxygen cylinder in real time, and the temperature will also affect the safety of the oxygen cylinder. It plays a certain role. At high temperature, the volume of the gas will expand, which will easily cause the pressure in the oxygen cylinder to rise.

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