Energy conservation and emission reduction circulating air system of spraying chamber

Abstract

The invention discloses an energy conservation and emission reduction circulating air system of a spraying chamber. The energy conservation and emission reduction circulating air system comprises a spraying production line, a circulating system and a fresh air system, wherein the spraying production line comprises a manual pretreatment section, a machine spraying section, an inspection section anda leveling section; a part of exhaust air of the machine spraying section, exhaust air of the inspection section, and exhaust air of the leveling section enter an inlet of the circulating system andare exhausted into the machine spraying section after exhaust air is filtered by the circulating system and temperature and humidity are adjusted; the other part of exhaust air of the machine sprayingsection is exhausted after follow-up treatment; exhaust air of the manual pretreatment section is directly exhausted to the machine spraying section; and the fresh air system sucks external fresh air, and external fresh air is exhausted to the manual pretreatment section, the machine spraying section, the inspection section and the leveling section after external fresh air is filtered and temperature and humidity are adjusted. According to the energy conservation and emission reduction circulating air system, the utilization rate of exhaust air of the spraying chamber can be effectively increased, energy consumption is greatly reduced, and energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to the technical field of decorative industrial coating, in particular to an energy-saving and emission-reducing circulating air system for a spray booth. Background technique [0002] In the case of decorative industrial painting (such as automobile body, bumper plastic parts, household appliances, etc.), the painting work of intermediate coating and topcoat must be carried out in a clean spray booth equipped with air-conditioning air supply device, and the air-conditioning air supply It is usually disposable, that is, the exhaust air of the spray booth is no longer recycled, and the source of the air is fresh outdoor air. Due to the change of outdoor temperature, the fresh air air conditioner needs to be heated in winter and cooled in summer to ensure the intermediate coating and surface. The best spraying environment for lacquer coatings [temperature (23±2)°C, relative humidity 65% ​​to 75%]. The larger the temperature adjustm...

AI Technical Summary

Problems solved by technology

[0005] Due to the limitation of VOC content, the existing circulating air system in the spray booth does not have a high recycling rate for the exhaust air in the spray booth, resulting in a large energy consumption, which does not meet the requirements of energy saving and emission reduction.

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