Measuring instrument and measuring method for radial deviation and detecting method for capacity of metal can with liquid
A technology of radial deviation and measurement method, which is applied in the direction of mechanical diameter measurement, measuring device, mechanical measuring device, etc., can solve the problem of low precision and achieve high verification results and high precision
Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology
[0011] The object of the present invention is to overcome the defect of low accuracy of the traditional radial deviation measurement method used for external floating roof vertical metal tanks, and provide a radial deviation measuring instrument capable of obtaining higher-precision radial deviation measurement data, and Radial Deviation Measurement Method and Capacity Verification Method for External Floating Roof Vertical Metal Tank
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[0085] The present invention will be described in detail below with reference to the accompanying drawings.
[0086] like figure 1 , figure 2 and image 3 As shown, the radial deviation measuring instrument provided by the present invention includes:
[0087] A base 100, at least one adsorption device (not shown) is provided on the side of the base 100;
[0088] a first sliding member 200, the first sliding member 200 is installed on the base 100 in a linearly movable manner;
[0089] The second sliding member 300, the second sliding member 300 is installed on the first sliding member 200 in a linearly movable manner, and the linear movement direction of the second sliding member 300 relative to the first sliding member 200 is the same as that of the first sliding member 200 The linear movement direction of the first slider 200 relative to the base 100 is not parallel, and the second slider 300 has a through hole 301; and
[0090] A measuring rod 400, the measuring rod 4...
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The invention relates to a measuring instrument for radial deviation, a measuring method for radial deviation of a metal can with liquid with utilization of the measuring instrument for radial deviation, and a detecting method for capacity of the metal can with liquid. The detecting method comprises: detection of capacities of all girth sheets, wherein the radial deviation measurement of all the girth sheets are carried out by utilizing the measuring method for radial deviation of the metal can with liquid provided in the invention so as to obtain diameters and capacities of all the girth sheets; and capacity detection of can bottom. According to the measuring instrument for radial deviation provided in the invention, radial deviations of all the girth sheets (especially all the girth sheets under a floating roof) are measured under a state with liquid; the instrument is directly contacted with a quarter of or three-quarters of to-be-detected girth sheets mutually, so that radial deviations of the to-be-detected girth sheets at the horizontal station can be obtained, thereby obtaining direct data parameters; furthermore, accurate measured values of the radial deviations can be obtained. Therefore, the measuring instrument for radial deviation provided in the invention and radial deviation data obtained by the measuring method have high precision.
Description
technical field [0001] The invention relates to the verification field of large metal tanks, and more specifically relates to a radial deviation measurement method and a capacity verification method for a vertical metal tank with an outer floating roof in a liquid-filled state. Background technique [0002] Vertical metal tanks are the main measuring instruments for international trade settlement of petrochemical products, as well as important measuring instruments and storage equipment for domestic petroleum, liquid petroleum products and other liquid goods trade settlement, delivery and transfer. The vertical metal cans that pass the inspection can be used as measuring instruments for trade settlement, sending and receiving. Therefore, in the field of petrochemical industry, the verification work of vertical metal tanks is very important. [0003] The vertical metal tank with external floating roof is a kind of vertical metal tank. According to the requirements of the na...
Claims
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IPC IPC(8): G01B5/08G01B5/00
Inventor 董绍平陈磊汪海勇韩卫民邢军
Owner CHINA PETROLEUM & CHEM CORP