Air compartment type draught fan performance test device for both air inflowing and exhausting

Abstract

The utility model relates to an air chamber-type air inlet and exhaust general-purpose fan performance testing device, which includes an air duct and a general air chamber; a flow pressure difference sensor is connected outside the air chamber box, an air chamber static pressure, a total pressure sensor, a wind chamber Chamber static pressure test switch valve and air chamber total pressure test switch valve. The switching valves are all three-way valves. The switching spool I of the air chamber static pressure test is connected to the high pressure end of the static pressure sensor through the pipeline, the spool II is connected to the static pressure measuring hole of the air chamber through the pipeline, and the spool III is connected to the atmospheric pressure end. Communication; the air chamber total pressure test switching spool I is connected to the low pressure end of the static pressure sensor through the pipeline, the spool II is connected to the air chamber total pressure measuring hole through the pipeline, and the spool III is connected to the atmosphere. The air duct is movable, from the inlet air chamber test device to the exhaust air chamber test device, only need to move the movable air pipe from one side of the air chamber to the other side for installation, and the position of the air chamber pressure switching valve is changed from The intake test position is switched to the exhaust test position, and all test sensors and instruments do not need to be changed.

Description

Technical field: [0001] The invention relates to an air chamber-type air inlet and exhaust fan performance testing device, which belongs to the technical field of fan performance testing. Background technique: [0002] At present, there are two kinds of general air chamber type fan performance testing devices: intake test device and exhaust test device. However, the two sets of test devices use the same instruments and devices, resulting in a great waste of equipment. At the same time, the two sets of test devices occupy a large area, which makes the experimental room more tense. The study found that the two sets of test devices are very similar in structure. If the two sets of test devices can be combined into one device, it will not only save money, but also reduce the area of ​​the test device by half, and reduce the use of materials and test system instruments by one set. The function of the device can be expanded (intake and exhaust). Contents of the invention [00...

AI Technical Summary

Problems solved by technology

However, the two sets of test devices use the same instruments and devices, resulting in a great waste of equipment. At the same time, the two sets of test devices occupy a large area, which makes the experimental room more tense.

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