Flow velocity and service life testing method for static pressure filter element

Abstract

The invention relates to the technical field of chemical detection. The flow velocity testing method for a static pressure filter element comprises the steps that: step 1, water is stored in a water storage device, the water storage device is provided with two water outlets which are respectively a first water outlet and a second water outlet, the first water outlet is positioned at the lower part of the water storage device, a water outlet hose is arranged on the side wall of the water storage device, and a water outlet of the water outlet hose is regarded as the second water outlet, the first water outlet is provided with a first valve, and a filter element to be tested is connected under the first valve in a detachable manner; step 2, the height of the second water outlet is adjusted through arranging a height adjusting device; step 3, and a water containing device is placed below the first water outlet, the first valve is opened, flow in unit time is measured by adopting a timing device for timing, and a flow velocity is obtained. The flow velocity testing method and a service life testing method provided by the invention reduce labor cost, adjust the height of water level quickly by adjusting the height of the second water outlet through arranging the height adjusting device, and have an adjustment range much greater than the traditional range of 5cm, thereby being suitable for various kinds of filter elements.

Description

technical field [0001] The invention relates to the technical field of chemical detection, in particular to a detection method for quality parameters of a static pressure filter element. Background technique [0002] The static pressure filter element refers to the filter element that can filter water only by gravity, which is very suitable for use in places without power sources such as the field. At present, it has gradually spread to the homes of ordinary people. Its important quality parameters --- flow rate and life test require a fixed water column pressure (10-100cm, about 0.1-100KPa), which is very small and extremely difficult to control, and as the total flow increases, its flow rate decreases and needs to be adjusted from time to time water column height. Currently, there are the following methods: [0003] 1. Manpower control of water level: This method consumes manpower and is not accurate. The life test takes a long time and needs to be tested by a special ...

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Problems solved by technology

However, there are many types of filter elements on the market, and the water level needs to be adjusted frequently, so this method is not advisable

[0005] 3. Change the water outlet to the sleeve mode, and use the thread engagement between the sleeves to achieve precise control. This method is extremely precise in control, but the range adjustment range is only 5cm, which cannot adapt to the testing of various filter elements.

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