A multifunctional sealing interface device for air performance test bench

Abstract

The utility model relates to a multifunctional sealing interface device for an air performance testing test bench, belonging to the technical field of air performance testing. It includes a ventilation section and a control valve section arranged on the ventilation section, the outlet end of the ventilation section is connected with the air duct in the air performance testing device, the inlet end of the control valve section is equipped with a bellows connection plate; the ventilation section is provided with an air flow The air inlet end of the ventilation section is provided with an annular chamber which communicates with the air flow channel; the control valve section includes a control valve housing communicated with the air flow channel. The compartment is divided into two communicated third and fourth chambers. The device of the invention replaces the step of sealing tape between the air duct in the test air duct and the air outlet hood or bellows of the air outlet of the integrated stove or range hood in the air performance test, reducing the workload of the experimenter, and sealing with the tape In comparison, there is no gas leakage due to excessive airflow during the experiment.

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] Air performance test device, 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 Ducts for Industrial 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 and the air outlet hood or bellows of the air outlet of the integrated stove or range hood are sealed and connected by tape. Before the start of each experiment, the operator needs to seal it with tape, and unpack the tape after the experiment. Multiple sets of data need to be measured for each experiment. Repeated winding and...

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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