Air supply and exhaust system for automotive front treatment chamber body

Abstract

The invention discloses an air supply and exhaust system for an automotive front treatment chamber body. The system comprises an air supply assembly and an air exhaust assembly; a containing chamber is arranged on the top of the front treatment chamber body, a top gap is reserved in the containing chamber, a sliding contact line is arranged in the front treatment chamber body and fixedly connected to the top of the containing chamber, the air supply assembly is fixedly arranged in the containing chamber and used for blowing air to the two sides of the top gap in the opposite directions, and the air exhaust assembly is fixedly arranged in the containing chamber and used for exhausting air out of the front treatment chamber body. According to the system, air is not directly supplied to the front treatment chamber body, the condition that hot steam overflows into the containing chamber from the interior of the front treatment chamber body is avoided due to air curtain shielding formed when the top gap is blown in the opposite directions, the air exhaust assembly is used for exhausting air out of the front treatment chamber body, extracting the rising hot steam in the front treatment chamber body out of the front treatment chamber body and forming negative pressure in the front treatment chamber body, and therefore the condition that a spark phenomenon is generated due to the fact that the sliding contact line in the containing chamber is influenced by the hot steam is avoided.

Description

Technical field [0001] The invention relates to the technical field of automobile pretreatment, in particular to an air supply and exhaust system for an automobile pretreatment chamber. Background technique [0002] In the pre-treatment of automobile coating, the temperature of hot water washing, pre-degreasing and degreasing tank liquid is generally controlled at 50℃, and most of the hot water washing and pre-degreasing are spray cleaning, which will generate a lot of hot steam during the treatment process, and the hot steam will rise. , It is easy to overflow the chamber body through the gap at the top of the chamber body, causing the hot steam to condense into water, which is deposited on the sliding contact line on the top of the chamber body, causing ignition. Therefore, air supply and exhaust devices are installed in the chamber to prevent hot steam from overflowing. [0003] At present, the air supply and exhaust devices are installed on the top of the chamber, and the left...

AI Technical Summary

Problems solved by technology

[0006] (2) There are both air supply and exhaust in the chamber, the negative pressure in the chamber is not obvious, and the hot steam is easy to overflow;

[0007] (3) There is no sealing measure for the gap at the top of the chamber body, hot steam is easy to rise and overflow the chamber body, and condenses into water droplets on the conductive sliding contact line, causing ignition and posing a safety risk

[0008] (4) It is necessary to manually use compressed air to blow off the water droplets on the trolley line, which is not only noisy, but also the workload of the workers is heavy

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