VENTILATION SYSTEM FOR EXPERIMENT STANDS WITH HEAT EXCHANGER

摘要

An experiment stand ventilating system with a heat exchanger is provided to collect the chemical substance to discharge out before diffusing to an indoor using a collecting unit. An experiment stand ventilating system comprises an experiment stand(10), a collecting unit(20), a control damper(25), an exhaust pipe(30), an air supply pipe(40) and a heat exchanger(50). The collecting unit collects the toxic gas generated from the chemical substance treated in the experiment stand. The control damper controls the exhaust volume by connecting with the collecting unit. The exhaust pipe discharge the toxic gas collected by the collecting unit to the outside of a laboratory. The air supply pipe supplies the outside air to the inside of the laboratory. The heat exchanger heat exchanges each other the ejected gas through the exhaust pipe and the supplied air through the air supply pipe. The collecting unit comprises a pair of support stands(23A,23B), a housing(21) and an exhaustion hose(25A). The housing comprises a plurality of collection holes.