Multifunctional sealing interface device for air performance test bed

Abstract

The invention discloses a multifunctional sealing interface device for an air performance test bed, which belongs to the technical field of air performance test. The device comprises a ventilation section and a control valve section arranged on the ventilation section, the air outlet end of the ventilation section is connected with an air duct in the air performance test device, and the air inlet end of the control valve section is provided with a corrugated pipe receiving disc; an airflow channel is formed in the ventilation section, and an annular cavity communicated with the airflow channel is formed in the air inlet end of the ventilation section; the control valve section comprises a control valve shell communicated with the airflow channel, a thrust assembly is arranged in the control valve shell, and the space between the interior of the control valve shell and the airflow channel is divided into a third cavity and a fourth cavity which can be communicated. According to the device, the step of adhesive tape sealing between an air duct in a test air duct and an air outlet cover or a corrugated pipe at an air outlet of an integrated cooker or a range hood in an air performance test is replaced, the workload of experimenters is reduced, and compared with adhesive tape sealing, gas leakage caused by too large airflow in the experiment process is avoided.

Description

technical field [0001] The invention belongs to the technical field of air performance testing, and in particular relates to a multifunctional sealing interface device for an air performance testing test bench. Background technique [0002] The air performance test device is suitable for testing the air volume performance of range hoods and ventilation fans for household and similar purposes. It meets the test requirements of GB / T1236 "Performance Test of Standardized Air Duct for Industrial General Fans", and also meets the requirements of ISO5801, JIS B8330, JIS C9603 and other standards. [0003] In the current test experiment, the air duct in the test air duct is sealed and connected with the air outlet hood or bellows of the air outlet of the integrated stove or range hood. Before the start of each experiment, the operator needs to seal it with tape, and unpack the tape after the experiment. Each experiment needs to measure multiple sets of data. Repeated winding and u...

AI Technical Summary

Problems solved by technology

Before the start of each experiment, the operator needs to seal it with tape, and unpack the tape after the experiment. Each experiment needs to measure multiple sets of data. Repeated winding and unsealing of the tape not only leads to a lot of waste, but also increases the operation steps of the experimenter

At the same time, the air volume in the air cylinder is too large during the experiment, and the gas will enter the gap between the tapes, resulting in gas leakage

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