Exhaust gas heat reclaiming device for setting machine and setting machine using exhaust gas heat reclaiming device

Abstract

The invention discloses an exhaust gas heat reclaiming device for a setting machine. The exhaust gas heat reclaiming device comprises a reclaiming head, a first air guiding passage, a second air guiding passage, an upper air outtake component and a lower air outtake component, wherein the reclaiming head is used for distributing hot air volume; the upper ends of the first air guiding passage and the second air guiding passage are respectively connected with the lateral air outlet of the reclaiming head; the upper air outtake component is arranged on a middle air outlet of the reclaiming head and is shaped like a bell mouth with a narrow upper end and a wide lower end; the upper air outtake component is provided with a first air outlet of which the port is downward; a plurality of air guide plates which can uniformly distribute air volume are arranged in the upper air outtake component at intervals; the lower air outtake component is horizontally arranged; the two ends of the lower air outtake component are respectively connected and communicated with the lower ends of the first air guiding passage and the second air guiding passage; the lower air outtake component is provided with a second air outlet of which the port is upward; the second air outlet is over against the first air outlet, so that the air blown by the first air outlet and the air blown by the second air outlet respectively form an air curtain. The tridimensional air curtains can pre-dry fabrics clamped between the tridimensional air curtains, so that energy source is saved; by the setting machine using the heat reclaiming device, the fabric feeding speed is increased, and the setting efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of fabric after-finishing, in particular to a heat recovery device for waste gas from a setting machine and a setting machine using the device. Background technique [0002] my country is a big country in textile and printing and dyeing. The setting machine is the key equipment for finishing textile printing and dyeing. The heat setting machine is a device that uses hot air to dry, finish and shape the fabric. At present, the existing heat setting machines generally make the air at normal temperature enter the setting machine from the cloth inlet of the setting machine along with the cloth to be processed, and heat the drying room through heat sources such as heat transfer oil and natural gas, so that the air in the drying room of the setting machine Raise the temperature to about 180-220°C, and the temperature of the hot smoke and exhaust air leaving the drying room of the setting machine is generally about...

AI Technical Summary

Problems solved by technology

However, since the cross sections of the upper and lower air seal tubes gradually decrease from the air inlet to the air outlet, the size of the air outlet must gradually decrease with the extension of the cross section, which makes the air seal tube The air volume of different parts of the air curtain formed at the outlet of the air curtain is inconsistent, and the air volume at the end of the air curtain must be the smallest, which not only greatly reduces the stability of the air curtain, but also easily causes part of the heat to be lost from the end of the air curtain, affecting thermal energy. The effective utilization rate and drying effect

Moreover, the new hot air ejected from the air seal in the above structure forms a planar air curtain instead of a three-dimensional air curtain, which determines that the function of the formed air curtain is only to prevent the new cold air from entering the oven of the setting machine, and it is difficult to The uniformity of the air curtain acting on the surface of the sizing woven fabric makes it impossible to pre-dry the fabric, and it is necessary to further sizing the fabric in the drying room of the sizing machine, resulting in a heavy load on the sizing machine drying room, which affects the heat setting machine. cloth-running speed, which limits the working efficiency of the sizing machine; in addition, although it is mentioned in the above-mentioned patent that using its structure can speed up the heating rate of the first section, the second section and the last section of the sizing machine, the applicant uses the above-mentioned structure to verify , it was found that the heating effect was not obvious

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