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

Patent metadata

Field	Value
Publication number	US-10294598-B2
Application number	US-201615557105-A
Country	US
Kind code	B2
Filing date	Jun 8, 2016
Priority date	May 30, 2016
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

The invention relates to a multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine. The system comprises 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. Each filling branch includes a booster pump, a supercritical fluid high-pressure mass flowmeter, a ball valve, and a dyeing unit sequentially connected along a medium forward direction by a high-pressure branch pipe. By using a mass-measurement filling system having multiple branches independent of each other, the invention can effectively realize simultaneous and accurate quantitative medium filling for separate dyeing units and differentiated filling for dyeing units with different medium masses, thus overcoming disadvantages such as unreliability, inaccuracy and low use efficiency of a conventional method, and also making a dyeing operation simple and scientifically feasible.

First claim

What is claimed is:

1. 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.

2. The multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine as claimed in claim 1 , wherein the gas source passes through a high-pressure pipe and a stop valve, and enters the supercritical fluid medium reservoir after being treated by a condenser.

3. The multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine as claimed in claim 2 , wherein the dyeing units are further connected with a separation and recycling device by the high-pressure main pipe, and the separation and recycling device being connected with the condenser by means of a stop valve.

4. The multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine as claimed in claim 3 , wherein the stop valve for introducing the gas source and the stop valve connected with the separation and recycling device are connected with the condenser by a high-pressure three-way pipe.

5. The multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine as claimed in claim 4 , wherein the dyeing unit is a stationary high-pressure dye vat or a mobile high-pressure treatment container.

6. The multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine as claimed in claim 1 , wherein the medium inlet is provided at a distance of 10 to 50 cm from the top of the supercritical fluid medium reservoir, and the medium outlet is provided at a distance of 5 to 50 cm from the bottom of the supercritical fluid medium reservoir.

7. The multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine as claimed in claim 1 , wherein the supercritical fluid high-pressure mass flowmeter has an applicable pressure of 0 to 70 MPa and a applicable temperature of −50° C. to 150° C.

8. The multi-pipe quantitative medium filling system of a supercritical fluid waterless dyeing machine as claimed in claim 1 , wherein the booster pump is selected from a group consisting of a gas booster pump, a liquid booster pump, a high-pressure plunger pump and a diaphragm pump.

Assignees

• Nantong Textile & Silk Industrial Tech Research Institute
• Univ Soochow

Inventors

• Long Jiajie

Classifications

• D06B23/205

  for adding or mixing constituents of the treating material · CPC title

• D06B19/00

  Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 · CPC title

• D06P1/94 Primary

  using dyes dissolved in solvents which are in the supercritical state · CPC title

• D06B23/20

  Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation · CPC title

• D06B23/10

  Devices for dyeing samples (D06B23/12 takes precedence) · CPC title