Assisting heat exchanger and direct temperature rise/lowering device of ultra-low liquor ratior dyeing machine

Abstract

An ultra-low liquor ratio fabric dyeing machine includes an assisting heat exchanger and a direct temperature rise/lowering device. The assisting heat exchanger or multiple ones of the assisting heat exchanger are additionally included in the dyeing machine. The assisting heat exchanger includes an external pipe that is mounted to a pump pipe of a pump at an inlet port, an outlet port, or both inlet and outlet ports thereof and is mounted with inlet and outlet openings for steam and cooling water in order to serve as an external casing that houses the pump pipe, while the pump pipe serves as a heat exchange pipe of the heat exchanger. The direct temperature rise/lowering device is mounted to a dyeing bath of the dyeing machine to directly introduce steam or cold water therein for quickly increasing or decreasing the temperature of the dyeing bath.

I claim: 
     
         1 . An assisting heat exchanger and direct temperature rise/lower device used in combination with an ultra-low liquor ratio fabric dyeing machine, comprising an external pipe that is mounted to a pipe at an inlet port, an outlet port, or both the inlet and outlet ports of a pump of the dyeing machine, such that the external pipe houses the pipe to serve as an external casing of a heat exchange device and the pipe that is housed functions as a heat exchange pipe of the heat exchange device that forms a heat exchanger operable to selectively increase or decrease a temperature without increase amount of water consumed in the dyeing machine, a direct temperature rise/lowering device being additionally included and mounted to a dyeing bath of the dyeing machine at a predetermined location to quickly increase or decrease a temperature of the dyeing bath. 
     
     
         2 . The assisting heat exchanger and direct temperature rise/lower device according to  claim 1 , wherein the assisting heat exchanger or the direct temperature rise/lowering device is installed individually.