Dyeing and finishing hot water recycling water temperature automatic control system

Abstract

The invention discloses a dyeing and finishing hot water recycling water temperature automatic control system. By additionally arranging a hot water temperature sensing device, a hot water pressure difference transmitter, a hot water check valve, a signal line, a mixed flow booster pump, a cold water temperature sensing device, a cold water pressure difference transmitter, a cold water check valve, a mixed water temperature sensing device, a mixed water pressure difference transmitter and the like, hot water and cold water are automatically supplied, the mixed water temperature is automatically adjusted, the purposes that recycling water is utilized without being wasted and waste energy consumption is not caused are achieved, and meanwhile, the effect that the production conditions are notaffected by the recycling hot water is ensured.

Description

technical field [0001] The invention relates to a hot water recycling control system, in particular to an automatic temperature control system for dyeing and finishing hot water recycling, belonging to the field of automatic control of dyeing and finishing cycle equipment. Background technique [0002] The dyeing and finishing industry involves dyeing, washing, setting and other processes, so high-pressure steam is used in production. When the high-pressure steam is used in production, the steam pressure will be reduced to form medium-pressure steam and hot water. At the same time, the dyeing tank is successfully opened during dyeing. Sometimes cold water will be used to circulate and cool the dyeing vat. At this time, the cooling water will also have a certain high temperature. If these hot clean water or medium-pressure steam or hot cooling water are directly discharged, it will cause a lot of waste. At the same time, this part Because the water only serves as a medium and...

AI Technical Summary

Problems solved by technology

[0002] The dyeing and finishing industry involves dyeing, washing, setting and other processes, so high-pressure steam is used in production. When the high-pressure steam is used in production, the steam pressure will be reduced to form medium-pressure steam and hot water. At the same time, the dyeing tank is successfully opened during dyeing. Sometimes cold water will be used to circulate and cool the dyeing vat. At this time, the cooling water will also have a certain high temperature. If these hot clean water or medium-pressure steam or hot cooling water are directly discharged, it will cause a lot of waste. At the same time, this part Because the water only serves as a medium and is not polluted, many dyeing factories will recycle the clean hot water. The recycled hot water is mainly used in dyeing vats. However, due to the needs of the production process, when undyed cloth Due to the high temperature of the hot water just entering the dyeing vat, the hot water will cause a certain amount of shrinkage on the cloth. This part of the shrinkage is difficult to control, and will cause serious quality accidents to the final dyed cloth. Many dyeing factories simply respond to the above problems. Recycled hot water is mixed with cold water, which will cause the temperature of the mixed water to be uncontrollable. If the water temperature does not drop, it will still cause damage to production. If the water temperature drops too much, it needs to be heated during production, which still causes waste of energy

Images