Built-in magnetic liquid level gauge
A liquid level gauge and magnetic induction technology, applied in the field of industrial measurement, can solve the problems of high temperature resistance loss of magnetic field strength, influence of waveguide measurement accuracy, unsatisfactory shape design, etc., to achieve timely and reliable measurement, ensure service life, and prevent jamming astringent effect
Active Publication Date: 2016-08-17
QINHUANGDAO HUADIAN MEASUREMENT & CONTROL EQUIP
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Problems solved by technology
Its disadvantages are: the magnetic part (6) is placed under high temperature conditions, and the high temperature degaussing characteristics of the magnetic part are extremely strict. Ordinary magnetic parts (6) are easy to demagnetize when working under high temperature conditions. Once the magnetic part (6) is demagnetized, the The entire measurement system completely loses the function of measuring the water level. Even if a high-temperature-resistant magnet is selected, its high-temperature resistance will lose its magnetic field strength, which will affect the measurement accuracy of the waveguide (7) and is prone to intermittent measurement signals, which poses a great safety hazard. Hidden danger: the shape design is not ideal, and the maintenance is inconvenient, especially when the magnetic part (6) is being repaired, the mouth door of the container (1) needs to be opened (this work can only be allowed when the outage is overhauled) to repair, the float (2) The connecting rod (3) between the magnetic part (6) and the magnetic part (6) is too long and there is no intermediate transition, which is extremely inconvenient for maintenance. If a large range is realized, it may lead to failure of maintenance
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[0009] Such as figure 2 As shown, the protective sleeve (11) is fixedly installed in the container (1) through the mounting bracket (12); the float (2) is placed in the protective sleeve (11); the float (2) is welded with a connecting rod (3) The connecting rod (3) is connected with the upper connecting rod (20) through the sleeve (27); there are three holes at the bottom of the upper cylinder (17), and the holes on both sides are connected with one left and one right cryogenic pipes (18), in the middle The hole is connected to the container (1) by welding or flange connection to the cylinder (5). There are two connection methods. One is to connect according to the welding method of the cryogenic tube (18) on the left in the figure, and the other is to follow the cryogenic tube ( 18) Use the connecting joint (26) to connect; the inner side of the upper part of the cylinder (5) is welded with a guide tube clamp (23) that clamps the guide tube (22); the cross bar (19) is placed ...
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The invention discloses a built-in magnetic liquidometer which is characterized in that a floater arranged in an actual liquid level in the container can directly measure the water level in the container, is a primary meter for measuring the water level in the container, and has accurate and reliable measurement results; a magnetic component driven by the floater is installed in a low-temperature tube under an upper barrel to reduce the high-temperature demagnetization, thereby enhancing the reliability of the measuring device; a transmission mechanism is connected in a sleeving mode, thereby being convenient to overhaul; and a corresponding density compensation calculation formula is utilized to compensate the measurement result, thereby reducing the measurement error and enhancing the measurement accuracy.
Description
Technical field [0001] The invention relates to a built-in magnetic level gauge, which is a high-temperature and high-pressure container water level measuring device. It belongs to the field of industrial measurement technology. Background technique [0002] The existing magnetic level gauge in the drum water level measurement used in the water level measurement of high temperature and high pressure vessels is as follows: figure 1 As shown, by the container (1), float (2), connecting rod (3), upper thrust spring (4), cylinder (5), magnetic component (6), waveguide (7), magneto-induced transmission Device (8), vessel pressure measuring instrument pipe (9), vessel pressure transmitter (10), protective sleeve (11), mounting bracket (12), lower thrust spring (13), cable 1 (14), Cable 2 (15), secondary meter (16) and other components. The cylinder (5) is welded on the top of the container (1) and communicates with the container (1); the protective sleeve (11) is fixedly installed in...
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IPC IPC(8): G01F23/62
Inventor 崔明思
Owner QINHUANGDAO HUADIAN MEASUREMENT & CONTROL EQUIP