In-cab micro-positive pressure system

Abstract

The invention discloses an in-cab micro-positive pressure system which comprises a metal plate shell, an air inlet channel and an air exhaust channel, the air inlet channel and the air exhaust channelare both communicated with the interior and the exterior of a cab, the air inlet channel and the air exhaust channel are both communicated with the same total heat exchange core, and an air inlet fanis arranged in the air inlet channel; an exhaust fan is arranged in the exhaust channel; the air inlet amount of the air inlet fan is larger than the air exhaust amount of the air exhaust fan, and the air pressure in the cab is kept 15-40 Pa larger than the air pressure outside the cab. The system is simple in structure, reasonable design, the problem that dust is severely raised in a mining areais solved; external dust cannot easily enter the cab through the micro-positive pressure environment, the air temperature of inlet air and outlet air can adapt to the environment through the total heat exchange core even if large temperature difference exists inside and outside the cab, energy consumption of a cold and hot circulation device of the system is reduced, and the comfort degree in thecab is guaranteed.

Description

technical field [0001] The invention relates to the field of supporting equipment for non-highway wide-body dump trucks. More specifically, the present invention relates to a micro positive pressure system in the cab. Background technique [0002] Off-highway wide-body dump trucks are often used for transportation in places with a lot of dust. During the work process, because the cab is not closed, dust and the like can easily enter the cab. On the one hand, it is easy to cause a short circuit in the cab and affect driving safety. On the other hand, dust is also easy to enter the driver's lungs, causing irreparable damage to the driver's health; in order to avoid the occurrence of the above situation, the common treatment method is to seal the cab; [0003] At present, the domestic non-highway wide-body dump truck cab sealing solutions are to reduce cab leaks and improve cab self-sealing by changing the cab sheet metal structure and increasing the amount of sealant, but it ...

AI Technical Summary

Problems solved by technology

[0006] Another object of the present invention is to provide a micro-positive pressure system in the cab, which has a simple structure and a reasonable design, which solves the sealing problem of the lower cab in the environment of severe dust in the mining area, and makes use of the micro-positive pressure environment to prevent external dust. Easy to enter the cab, through the full heat exchange core, even if there is a large temperature difference between the inside and outside of the cab, the air temperature of the air inlet and outlet can adapt to the environment, reduce the energy consumption of the cold and hot cycle device of the system, and ensure the safety of the cab. comfort

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