Multi-path parameter adjustment direct connection type test platform under low total temperature condition

The invention discloses a multi-path parameter adjustment direct connection type test platform under a low total temperature condition, which comprises an air-oxygen mixing section, an injector, a combustion chamber, a spray pipe, an expansion section, a mixing section, a stabilizing section, a shunting section and an overflow section which are detachably connected in sequence from left to right, and is characterized in that the air-oxygen mixing section is provided with an air inlet and an oxygen inlet; a hydrogen inlet and an explosion venting opening are formed in the injector, an explosion-proof membrane is arranged at the explosion venting opening, an ignition device is arranged in the combustion chamber, a mixed air inlet is formed in the mixing section, a flow equalizing plate is arranged between the mixing section and the stabilizing section, and a main path air outlet and three bypass air outlets are formed in the overflow section. The three bypass air outlets are evenly distributed in the circumfere