Testing should adopt special measuring instruments which are qualified or measuring devices which meet the current national standards (flow measurement throttling devices). The air leakage tube test device can adopt the air duct type or the air chamber type. The orifice plate is used as metering element in the air duct type test device, and the nozzle is used as metering element in the air chamber type test device. The final measured value and the design given value should not be less than 10% qualified.
Kitchen smoke exhaust in Jinan
(1) The upper part of the highest exhaust outlet of the smoke exhaust system should be set in the machine room partitioned by partitions whose fire resistance limit is not less than 2.5 hours, and the door of the smoke exhaust machine room of Jinan kitchen should be fireproof door whose fire resistance limit is not less than 0.6 hours.
(2) In order to facilitate maintenance, the distance from the hood shell to the wall or equipment should not be less than 60 cm.
(3) The connection mode between exhaust hood and exhaust flue should be reasonable. Practice has proved that the performance of the fan is often significantly reduced because of the incorrect connection between the exhaust hood and the exhaust duct.
(4) The smoke hood and the smoke outlet shall be equipped with interlocking devices. When any smoke outlet opens, the kitchen smoke exhaust in Jinan can start automatically. That is to say, once the alarm is given and the cattle fire is confirmed, the smoke exhaust outlet is opened manually or remotely by the fire control room, the smoke exhaust hood will be put into operation immediately, and the ventilation and air conditioning system in the fire area will be closed immediately. Firstly, check whether the air duct tightness test meets the requirements of design and current construction quality acceptance criteria. If it does not meet the requirements, whether it has been repaired or not, and whether the treatment results meet the requirements. Verify whether the instrument used in the test has a certificate of verification, whether its accuracy meets the requirements, and whether the determination date of each record is within the validity period of its verification. Comparing with the construction drawings, check whether the system in the test project is complete, whether the test data is accurate and true, and whether the visa is complete.
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