Cast aluminum gas tank with longitudinally arranged circuit breaker and assembly method

The invention discloses a cast aluminum gas tank with longitudinally arranged circuit breakers and an assembly method. The gas tank comprises a tank body, and a circuit breaker-three-station integrated disconnecting switch is arranged in the tank body; the circuit breaker-three-station integrated disconnecting switch is connected with a metal plate frame, the metal plate frame is in threaded connection with the inner wall of the box body, the box body is further provided with a top sleeve and a bottom sleeve, and the circuit breaker-three-station integrated disconnecting switch is longitudinally connected with the top sleeve and the bottom sleeve. According to the invention, the installation port is preset in the box body, and the circuit breaker-three-station integrated disconnecting switch and the connecting bus thereof are vertically arranged in the box body, so that the length of the whole main loop is shortened, and the use amount of conductive materials is reduced, thereby reducing the resistance and he