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.

Claims

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.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is a schematic view showing a structure of a dyeing machine according to an embodiment the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.

[0010] As shown in FIG. 1, the present invention provides an assisting heat exchanger and a direct temperature rise/lowering device for an ultra-low liquor ratio dyeing machine that comprises a machine body 1 and a dyeing tube 8 arranged above the machine body 1 to allow fabric to move therethrough. The dyeing tube 8 is provided therein with a fabric seam detectors 5 that is set at a predetermined location to detect a leading edger or seam of the fabric. The machine body 1 is provided, in an interior space thereof, with a nozzle 4 and a fabric guide roller 3 arranged at an upper portion of a front end thereof. The machine body 1 is provided with a liquid storage tank 6 that is mounted to a bottom of the machine body at a rear end thereof. The liquid storage tank 6 is provided with a primary heat exchanger 12 arranged therein. In an alternative arrangement, the primary heat exchanger 12 may be mounted to a pipe 9 for circulation of dye. The liquid storage tank 6 is connected, at a bottom thereof, through a pipe 13 to a pump 7. The pump 7 has an inlet port and an outlet port and an external pipe 101 is additionally mounted to encompass the pipe 9 at the inlet port or the outlet port of the pump and comprises a steam inlet opening 113, a cooling water inlet opening 114, and a cooling water outlet opening 115 mounted thereto. The additionally mounted external pipe 101 may serve as a housing or external casing of a heat exchanger to help increase the rate of increasing or decreasing a temperature but does not require an increase of the amount of water (liquor ratio) consumed by or involved in the operation of the dyeing machine. In this way, the pipe 9 of the pump 7 may serve as a heat exchange pipe of the heat exchanger to thereby form a typical heat exchanger, which functions as an assisting heat exchanger 10. Preferably, valves for controlling ingress and egress of steam and cooling water for the assisting heat exchanger 10 are shared with the primary heat exchanger 12 of the dyeing machine in order to simplify the overall structure and save cost. Further, the present invention also involves a direct temperature rise/lowering device 11 that is mounted in a dyeing bath 1-1 inside the machine body 1 at a predetermined location. When washing the dyeing bath 1-1 is required, steam may be introduced through a steam pipe 111 to cause a direct temperature rise of washing water so that the temperature of the washing water may be quickly increased thereby shortening the washing time. When temperature drop is required form the dyeing bath 1-1, cold water may be introduced through a cold water pipe 112 so that the temperature the dyeing bath 1-1 can be lowered down quickly.

[0011] It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.

[0012] While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the claims of the present invention.