The elbow flowmeter is a differential pressure type flow device and is widely used for flow measurement of liquids, gases and steam in industries such as electric power, thermal power, metallurgy, steel, chemical industry, machinery, textiles, papermaking, pharmaceuticals, food, and utilities. First, the L-shaped elbow flowmeter installed: 1. First, take two straight sections with the same pipe diameter as the pressure bend pipe. The length is more than 1 diameter. 2. The two sections of the straight section taken from the platform (or on the flat ground) are welded to the pressure bend pipe and are perpendicular to 90 degrees to ensure the welding quality. 3, the prefabricated pipe rack and process piping welding. 4. The elbow sensor is welded to the process pipe to make it work in a horizontal space as much as possible. When the site does not have horizontal installation conditions, it can be installed in a vertical space. Second, S-type elbow flow sensor and process piping flange connection, according to the sensor mark flow direction, and the process pipeline is in a horizontal space docking. Third, when the elbow flow sensor is installed, the length of the straight section of the front end should be greater than 5 times the diameter, and the straight section of the rear end should be greater than 2 times the diameter. The operation of the elbow flowmeter: Pre-operational inspection 1. Check whether the piping, installation and wiring of each transmitter (including differential pressure, pressure and temperature transmitter) are correct. 2. Check all welded connectors, and check whether the threaded connectors are tight and do not leak. 3, check the secondary instrument wiring is correct, and the connection between the transmitter is correct, focus on checking the power connector position. 4. After the above check is correct, switch on the power supply of the secondary instrument. The elbow flow meter is easy to install, wear-resistant and maintenance-free. The elbow sensor as a measuring element can be installed directly on the pipeline using a direct welding method. Once the welding is completed, there are no such headaches as leakage. This is the bend. Tube maintenance-free features. It should be emphasized that the bend tube sensor can be installed by welding. The premise is that the bend tube sensor is insensitive to wear, and the long-term trace wear has little effect on the measurement performance of the bend tube sensor. This is related to the welded orifice plate. There is a fundamental difference.
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