Multi-pipe quantitative medium filling system of supercritical fluid dyeing machine

A multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine, comprising:

• a supercritical fluid medium reservoir, a stop valve, and a medium filter sequentially connected by a high-pressure main pipe;
• and
• at least two filling branches independent of each other and connected to the medium filter, and each of the filling branches comprising a booster pump, a supercritical fluid high-pressure mass flowmeter, a high-pressure ball valve and a dyeing unit which are sequentially connected along a medium forward direction by a high-pressure branch pipe,
• wherein the supercritical fluid medium reservoir is provided with a medium inlet connected to a gas source, and a medium outlet connected to the stop valve by the high-pressure main pipe;
• an entry end of the booster pump being in communication with the high-pressure main pipe to be connected with the medium filter, an exit end of the booster pump being in communication with the supercritical fluid high-pressure mass flowmeter, and the start and stop of the booster pump being controlled by the supercritical fluid high-pressure mass flowmeter;
• an entry end of the supercritical fluid high-pressure mass flowmeter being in communication with the booster pump by the high-pressure branch pipe, an exit end of the supercritical fluid high-pressure mass flowmeter being in communication with the high-pressure ball valve by the high-pressure branch pipe, and the supercritical fluid high-pressure mass flowmeter being connected to the booster pump in a coordinated control manner, and the start and stop of the booster pump being controlled by coordinated control signals for measurement and transmission of the mass, density and temperature of a passing supercritical fluid, and presetting of a required fluid mass;
• and
• one end of the high-pressure ball valve being in communication with the supercritical fluid high-pressure mass flowmeter by the high-pressure branch pipe, and the other end of the high-pressure ball valve being connected to the dyeing unit for quantitatively filling the dyeing media.