Coating pretreatment hot-water circulating heating device for automobile hubs

Abstract

The invention discloses a coating pretreatment hot-water circulating heating device for automobile hubs. The coating pretreatment hot-water circulating heating device comprises a spraying box, a heat exchanger, a water heater, a burner, an air pipe, a fan, leads, an electric cabinet, a water-heater water pumping device and a spraying-box water pumping device, the air pipe is connected with the air inlet of the burner, the fan is connected with the air intake of the burner, the air outlet of the burner is connected with the water heater, the left end of the water heater is connected with the lower left connector of the heat exchanger through a water-heater water inlet pipe, the right end of the water heater is connected with the upper right connector of the heat exchanger through a water-heater water outlet pipe via the water-heater water pumping device, the spraying box is connected with the upper left connector of the heat exchanger through a spraying-box water inlet pipe on the left side, and the spraying box is connected with the lower right connector of the heat exchanger through a spraying-box water outlet pipe on the right side via the spraying-box water pumping device. The coating pretreatment hot-water circulating heating device is capable of heating cyclically, high in accuracy of temperature control, safe and reliable and low in cost.

Description

Technical field [0001] The invention relates to pretreatment equipment for painting, in particular to a hot water circulating heating device for pretreatment of automobile wheel hub painting. Background technique [0002] Since there are often grease on the surface of the automobile hub before painting, it must be cleaned and degreasing before the automobile hub is painted. The specific method is: spray the heated cleaning fluid in the spray box The pipe is sprayed to the surface of the automobile hub for cleaning and degreasing. The existing method of heating the cleaning fluid is electric heating, which consumes a lot of energy and high cost. In particular, when cleaning and degreasing the automobile hub, the temperature of the cleaning fluid is required to fluctuate. The range is small. Due to the low temperature in winter and high temperature in summer, the temperature of the cleaning fluid is not easy to control, so the process requirements are often not met, resulting in po...

AI Technical Summary

Problems solved by technology

[0002] Because there is often grease on the surface of the automobile wheel hub before painting treatment, it must be cleaned and degreased before the painting treatment of the automobile wheel hub. The specific method is: spray the heated cleaning solution in the spray box The tube is sprayed onto the surface of the automobile wheel hub for cleaning and degreasing. The existing method of heating the cleaning liquid is electric heating, which consumes a lot of energy and costs high. Especially, when cleaning and degreasing the automobile wheel hub, the temperature fluctuation of the cleaning liquid is required. The range is small. Due to the low temperature in winter and high temperature in summer, the temperature of the cleaning solution is not easy to control, so it often fails to meet the process requirements, resulting in poor cleaning effect and possible hidden surface corrosion, which directly affects product quality.

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