Dye vat high in cleaning liquid utilization rate

Abstract

The invention provides a dye vat high in cleaning liquid utilization rate. The dye vat comprises a vat body, a circulating pipe connected to the bottom of the vat body and communicated with the interior of the vat body, and a heat energy exchanger. The dye vat is characterized in that the heat energy exchanger comprises a sealed exchange box body and a spiral exchange tube arranged in the exchangebox body, two ports of the spiral exchange tube extend out of the exchange box body, the exchange box body is provided with a cold tap water inlet and a hot tap water outlet, and the bottom of the vat body is communicated with a hot sewage discharge pipe; the heat sewage discharge pipe is communicated with one end of the spiral exchange tube, and the other end of the spiral exchange tube is connected with a cold sewage discharge tube; the circulating pipe is connected with a hot tap water pipe, the hot tap water pipe is connected with the hot tap water outlet of the exchange box body, and thecold tap water inlet is connected with a cold tap water pipe. By the adoption of the dye vat high in cleaning fluid utilization rate, sewage discharge can be reduced, heat energy is recycled, and theuse amount of cleaning liquid is also reduced.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing wastewater utilization, and relates to a dye vat with high utilization rate of cleaning liquid. Background technique [0002] The temperature of the sewage discharged from the dyeing vat is relatively high, up to about 80°C, and direct discharge results in waste of heat energy. The existing heat energy recovery is to convert the heat energy of the printing and dyeing wastewater into clean water through the heat exchange tube, but the heated clean water is put into the hot water storage tank, and there is no mention of how to use it, and the replacement of fabrics in the dyeing tank is very difficult. Empty the sewage inside at one time, resulting in a large amount of sewage discharge. For example, the Chinese invention patent application number is 201711156572.9, which discloses a high-efficiency printing and dyeing wastewater heat energy recovery device, including a filter device, th...

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Problems solved by technology

[0002] The temperature of the sewage discharged from the dyeing vat is relatively high, which can reach about 80°C, and direct discharge leads to waste of heat energy

The existing heat energy recovery is to convert the heat energy of the printing and dyeing wastewater into clean water through the heat exchange tube, but the heated clean water is put into the hot water storage tank, and there is no mention of how to use it, and the replacement of fabrics in the dyeing tank is very difficult. Empty the sewage inside at one time, resulting in a large amount of sewage discharge

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