Energy-saving drying heat pump set for printing

Abstract

The invention discloses an energy-saving drying heat pump set for printing. The energy-saving drying heat pump set comprises a plurality of energy-saving drying heat pump device bodies; each energy-saving drying heat pump device body comprises a printing device, a heat pump device, a printing waste gas collection pipeline and a waste gas treatment device; each printing device comprises a printingroller and an ink box; each heat pump device comprises a drying oven and a heat pump; each heat pump comprises a recovery heat exchanger, a heater, a heat pump air outlet pipeline, a heat pump air return pipeline and an exhaust gas exhaust pipeline; each waste gas treatment device comprises a water washing tower and a demisting chamber; and activated carbon adsorption nets are arranged in the demisting chambers. According to the energy-saving drying heat pump set, the high-efficiency energy-saving characteristic of the high-temperature heat pump is adopted, and secondary heat recovery technology is adopted, so that heat in tail gas is fully recycled, the heat pump set is efficient and energy-saving, and the purposes of low carbon emission reduction and environmental protection are achieved; and by arranging the waste gas treatment devices, harmful components in the tail gas are removed, and the environmental pollution caused by direct emission is avoided.

Description

technical field [0001] The invention relates to the technical field of drying heat pumps, in particular to an energy-saving drying heat pump group for printing. Background technique [0002] At present, in the domestic printing flexible packaging industry, gravure printing machines and other equipment are widely used. Such equipment needs to use a lot of heat energy to dry products. Therefore, the domestic printing and packaging industry is still in a state of high growth, high emissions, and high energy consumption. The existing energy utilization schemes have defects such as high energy consumption for drying, high investment in complex auxiliary equipment, and inability to supply cold and heat sources simultaneously. Enterprises are looking for the best energy-saving solutions to achieve green printing and industrial upgrading. [0003] The printing industry mainly has the following major problems: first, a large amount of energy is required for printing and drying, and ...

AI Technical Summary

Problems solved by technology

Therefore, the domestic printing and packaging industry is still in a state of high growth, high emissions, and high energy consumption. The existing energy utilization schemes have defects such as high energy consumption for drying, high investment in complex auxiliary equipment, and inability to supply cold and heat sources simultaneously. Enterprises are looking for the best energy-saving solutions to achieve green printing and industrial upgrading

[0003] The printing industry mainly has the following major problems: first, a large amount of energy is required for printing and drying, and the equipment operation cost is extremely high; second, most of them use electric heating for drying, and the installed capacity is large, and electricity is required when new equipment is purchased Capacity increase costs; third, a large amount of high-temperature organic waste gas is directly discharged into the air, causing great environmental pollution. The waste gas discharged during the drying process stores a large amount of heat energy, which is directly discharged into the atmosphere without recycling; Fourth, in summer, the temperature of the workshop is high, the smell is strong, the working environment of the employees is harsh, a large amount of cold air is needed in the factory room, and the power consumption cost of the air conditioner is very high

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