Balance meter scale installation and debugging

Abstract: the installation and commissioning of balance meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Balance meter have greatly improved the traditional throttling device, has a balance of rectifier characteristics significantly. Traditional throttling device is only one aperture, throttling after fluid lost ideal state; And balance aperture flowmeter has multiple functions, can zui deadline. More flow meter manufacturers choose model price quote you are welcome to inquire, here is balance meter scale installation and debugging the article details. Balance meter have greatly improved the traditional throttling device, has a balance of rectifier characteristics significantly. Traditional throttling device is only one aperture, throttling after fluid lost ideal state; And balance meter aperture has multiple functions, to limit the flow field zui balance rectifier as ideal fluid, thus the advantage of the differential pressure flowmeter play incisively and vividly. Balance measurement meter is suitable for almost all fluid is a fluid measurement technology revolution, the current balance flowmeter has been widely used in petroleum, chemical industry, metallurgy, electricity, gas, water treatment and other industries. Differential pressure transmitter installation requirements (1) the balance of the flowmeter is pressure side guide tube into three valve set of positive pressure and differential pressure transmitter, drew balance flowmeter suction side pressure pipe into three valve 2 set of negative pressure and differential pressure transmitter room differential pressure transmitter in the process piping installation position and the measured medium, in order to obtain good installation effect, consider the following situations to prevent A transmitter should be paid attention to direct contact with corrosive or overheating of the measured medium B prevent scum in the pressure tube sedimentation, block C is the length of the negative pressure on both sides of the guide pipe should be D pressure on both sides of the same led the pressure tube of fluid column pressure balancing head should E led tube installed in A temperature gradient and temperature fluctuation zui little place (3) to measure the liquid flow, the differential pressure transmitter shall be installed beside the pipeline under test or below, so that the bubbles into the duct (4) measuring gas flow rate, differential pressure transmitter shall be installed beside the pipeline under test or above, in order to accumulate the liquid to flow into the pipes in [5] steam flow measurement, differential pressure transmitter shall be installed at the bottom of the pipe to be tested, so that condensate can be full of the pressure in the tube. Should pay special attention to the measurement of steam or other high temperature medium, to prevent contact with differential pressure transmitter temperature transmitter using limit temperature of the medium. Temperature, pressure transmitter installation requirements 1, measuring, superheated steam medium must be integrated temperature transmitter and pressure transmitter, dynamic compensation. Measurement of saturated steam medium, must want to add pressure transmitter, dynamic compensation. 2, measuring, natural gas, coal gas medium must plus a dynamic compensation of pressure transmitter, and use of safety barrier and explosion-proof device of the transmitter. 3, measurement of hot water medium, heat is need to show, must add integrated temperature transmitter, otherwise the integrated temperature transmitter. 4, integrated temperature transmitter is installed on the pipeline under test, have to balance the flow meter paragraph 5 d just before or after or outside temperature probe tip should be inserted into the straight section of 2 d exceed half pipe diameter, to ensure the accuracy of measurement. 5 pressure, differential pressure transmitter, pressure points, must before the balance meter view of straight pipe section 5 d or 2 d after straight pipe, meantime switch valve. For the installation of integrated temperature transmitter and pressure transmitter, in principle should accord with conventional installation specification can meet the requirements of the system, its specific installation requirements can see separate installation instructions. Balancing valve with three valve group installation requirements of the balancing valve or valve group (1) to adjust the effect of differential pressure transmitter zero diction to prevent overpressure of the positive and negative differential pressure transmitter, pressure chamber as shown below, please method and pressure pipe connection. Debugging and running, based on the principles of installation and application after the installation is complete, before the system debugging to check all equipment, fittings, valves, pipes, wires, terminal blocks, such as signal plug whether complete, correct and reliable, pipes and equipment have blocked, leak phenomenon, connect the wire and the signal point wrong, short circuit, break line, the problem such as poor contact, confirmed by the check and correct the rear can be carried out system debugging, and debugging steps are as follows: 1, the pressure tube drainage: ( 1) To take pressure balance flow meters on both sides of the valve to open, Note: you must speak all valve open) ； ( 2) Will three on either side of the valve group is negative pressure valve closed, in the middle of the balancing valve open; ( 3) Will bring pressure tube are sent without negative pressure valve opens, on both sides for drainage. Clean pressure tube. 2, pressure pipe condensing: ( 1) When the led has enough of condensed water pressure tube, the three valve group is negative pressure on both sides of the valve can be open ( At this point in the middle of the balancing valve is still in an open position) Condensed water respectively, let into the differential pressure transmitter is negative pressure chamber. Due to the condensed water deposition will take time, so start the indications of the differential pressure transmitter will not accurate, such as condensed water completely filled with the whole measurement system ( Including selecting pressure, pressure pipe and differential pressure transmitter is negative pressure chamber) Opportunities tend to be normal, the differential pressure transmitter instructions ( Takes about 2 hours) 。 ( 2) Close the drain valve, let the media in the lead in the pressure tube natural condensation, until the whole pipe full of condensed water ( Takes about four hours) 。

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