Ventilation system

Abstract

The invention relates to a ventilation system used for a working space (S). Multiple working positions are arranged in a row in the working space. The ventilation system comprises a long ventilation groove (2m), a ventilation device and a flexible covering piece (5), wherein the long ventilation groove (2m) extending in the arranging direction of the working positions is formed in the wall (8) of the working space, and the ventilation groove faces the working positions; the ventilation device is designed for compulsive ventilation via the ventilation groove (2m); the flexible covering piece (5) covers the ventilation groove. According to the ventilation system, as a gap (9) extending in parallel to the ventilation groove (2m) is formed in the flexible cover piece, the flexible covering piece can generate partial elastic deformation around the gap for allowing part of the gap to open so as to expose part of the ventilation groove.

Description

technical field [0001] The present invention relates to an exhaust system, more specifically, an exhaust system for forcibly exhausting toxic volatile gases in industrial production, for example. Background technique [0002] Toxic and volatile raw materials may need to be dosed in industrial production. For example, in the production process of polyurethane composite materials, more than one auxiliary agent needs to be added to the main material. The auxiliary agent can include chain agent, crosslinking agent, surfactant, flame retardant, foaming agent, pigment and filler, etc. Wait. Different kinds of additives are stored in different material barrels, and are dosed through their own pipelines. They need to be weighed and mixed manually, and then put into the reactor to mix with the main ingredients and other additives. The commonly used auxiliaries are toxic and volatile during the weighing process. Therefore, ventilation is required during weighing to prevent the volat...

AI Technical Summary

Problems solved by technology

However, the weighing of various additives is carried out separately at each auxiliary agent discharge port, so that when a certain auxiliary agent is weighed at a certain auxiliary agent discharge port, on the one hand, due to Simultaneous exhausting of all the air outlets makes the air volume of a single air outlet very small, making it difficult to direct high-intensity air extraction at the single auxiliary agent discharge port, resulting in the volatilized auxiliary agent not being discharged in time and endangering the health of the operator ; On the other hand, other air outlets far away from the discharge port cannot effectively discharge the additive gas, wasting the air volume and electric energy

Images