Automobile coating drying chamber fresh air heating device

Abstract

The invention discloses an automobile coating drying chamber fresh air heating device which comprises a shell, a surrounding partition plate, a fire protection barrel and a burner. An insertion type draught fan is fixedly installed at the left end in the shell, the surrounding partition plate is fixedly installed at the right end of the insertion type draught fan, an air inlet bin is formed in the surrounding partition plate, and an air inlet is formed in the position, at the front side of the air inlet bin, of the shell; an inner flow bin is formed between the surrounding partition plate and the shell, the fire protection barrel is fixedly installed at the right end in the shell, and a heat exchanger is integrally installed at the right end of the fire protection barrel; all parts are integrated in one box body, the structure is compact and simple, the integration degree is high, the occupied area is small, and the manufacturing cost is low; the draught fan is positioned in front of the burner, so that air is in a low-temperature working state when passing through the draught fan, and the service life of the draught fan is greatly prolonged; the device is provided with an air mixing port, a bypass air pipe and a draught fan do not need to be additionally arranged, and the problem that the temperature requirements of inlet and outlet air seal sections of a drying chamber are inconsistent is simply solved; and each functional section of the shell is provided with an access door, so that the maintenance of each part in the device is facilitated.

Description

Technical field [0001] The present invention relates to the technical field of heating devices, and the specific field is a new wind heating device for automotive coating drying chamber. Background technique [0002] The car coating drying room is to dry the product after drying, and the harmful gas of the solvent during the drying process spills out of the drying chamber, the entry of the cold air, the entrance and exit of the drying chamber is The main part of heat isted, the heat from the entrance and exit, but also causing an increase in the energy consumption of drying room, but also easily deteriorates the working environment of the workshop, in order to avoid the cold air in the drying chamber and the cold air outside of the indoor body. Dropping, by adding fresh hot air to the drying chamber to reduce the air-containing amount and press the inner heat gas back to the drying chamber, then sent to the exhaust gas treatment equipment. At present, the traditional new wind hea...

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Problems solved by technology

[0002] The car coating drying room is to dry and solidify the sprayed products. During the drying process, the harmful gas volatilized by the solvent will overflow through the entrance and exit of the drying room and the cold air will enter. The entrance and exit of the drying room are The main part of heat waste, the heat overflowing from the entrance and exit not only increases the energy consumption of the drying room, but also easily deteriorates the working environment of the workshop. In order to prevent the hot air in the drying room from meeting the cold air outside the room and condensing into oil Drop, by adding fresh hot air to the air seal section at the entrance and exit of the drying chamber to reduce the oil content of the air and press the hot gas in the chamber back into the drying chamber, and then send it to the waste gas treatment equipment by the exhaust gas fan

At present, the traditional fresh air heating device is arranged separately from the fan and the supplementary air device. The temperature sent by the fresh air heating device to the inlet air seal section is the same as the temperature of the outlet air seal section. In fact, the drying chamber is connected to the inlet air seal section. The setting temperature of the section is much lower than the temperature of the insulation section connected to the outlet air seal section. If the temperature of the fresh air heating device is set too low, the temperature of the insulation section connected to the outlet air seal section will rise too slowly during the temperature rise of the cold furnace. If the temperature of the fresh air heating device If the setting is too low, the rising temperature connected to the inlet air seal section will not be able to control the temperature, which will affect the stability of the body surface temperature. In addition, these devices occupy a large area, and it is easy to generate condensed oil at the inlet and outlet of the drying chamber.

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