COMPOSITION GAS MULTI MEASUREMENT SYSTEM OF SEALING ZONE

The present invention relates to a complex gas multi-measuring system inside a sealing zone comprising: multiple inhaling hoses installed inside each of multiple sealing zones to inhale complex gas inside the sealing zone; a multi-manifold connected to the multiple inhaling hoses; a pump for pumping complex gas flowed in to the multi-manifold from the multiple inhaling hoses; and a complex gas measuring device for measuring complex gas flowed in by action of the pump. According to the present invention, complex gas such as oxygen/inflammable gas, and etc. inside the sealing zone is measured at the same time by using the complex gas measuring device, and a concentration of multipart complex gas is measured and integrally managed by applying the multi-manifold. Accordingly, the safety of a worker can be secured by entering the specific sealing zone after measuring a gas concentration inside the corresponded sealing zone in advance by operating an inflow controlling valve attached to the multi-manifold when the worker enters the specific sealing zone for working. Moreover, the inhaling hose is installed inside the sealing zone, and others such as the complex gas measuring device, and etc. are installed outside the sealing zone. Therefore, the work efficiency of a worker can be improved.