JP2015200348A5 - - Google Patents

Claims (4)

A tank opening device for a tank storing high-pressure gas,
A pressure detection type release valve that is equipped with a detection unit that detects an increase in tank external pressure, and that releases a gas in the tank when the detection unit detects an increase in the tank external pressure above a predetermined level;
A detection portion conducting pipe that is connected to the pressure detection type open valve in conduction with the detection unit and extends from the pressure detection type open valve to the outside of the tank;
A gas discharge unit disposed in the detection unit conduction pipe and capable of releasing gas at a high pressure to the detection unit through a pipe line of the detection unit conduction pipe;
Tank valve opening device. The gas discharge portion, said a pipe of the detecting section conduit that is more disposed, tank opening device according to claim 1. The tank valve opening device according to claim 2,
A check valve that shuts off gas passage from the detection unit side in the conduit of the detection unit conduction pipe;
The check valve is a tank valve opening device in which the gas discharge part is disposed downstream of a gas discharge part that discharges the high-pressure gas into a pipe line of the detection part conducting pipe. A plurality of the detecting portions conduit having a gas discharge portion, any one of claim 1, wherein the detection unit conduit of said plurality of extending the tank outside by different routes from the pressure detection type release valve of請Motomeko three to The tank opening device according to item.