Automobile oil tank truck capacity automatic inspection device with self-calibration function and inspection method
A technology for oil tank trucks and automobiles, which is applied in the field of automatic verification devices for the capacity of automobile oil tank cars, can solve the problems of wrong verification results, not too large, and low verification efficiency, etc., so as to improve the verification efficiency and reduce human errors. Effect
Active Publication Date: 2014-01-08
CHINA JILIANG UNIV
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Problems solved by technology
[0005] 1. The verification efficiency is not high: because a flowmeter is used as the standard meter, when the standard meter is used at a fixed point, the water flow is often not very large, and the water injection time is long, so the verification efficiency is not very high
[0006] 2. Whether the standard table is correct or not is not easy to find: during the use of the standard table, when there is a problem with it, because there is no inspection mechanism, the problems existing in the standard table cannot be found in time, resulting in the risk of error in the verification results
[0007] 3. The maintenance of the standard meter is cumbersome: according to the verification regulations, regular verification of the standard meter is required. The disassembly and inspection of the standard meter is troublesome, which affects the progress and benefits of the actual production verification
[0008] 4. High labor intensity: manual water release and reading are relatively labor intensive, and it is easy to introduce human error
Method used
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[0023] Such as figure 1 As shown, the water pump 1 pumps water from the circulating pool 12 through the pipeline, and the liquid enters the surge tank 2 to obtain liquid with stable pressure. According to the needs of the measurement, the opening of the regulating valve 3 is controlled by PLC to obtain a suitable flow rate. When the system is in the verification stage of reading the automobile oil tank, the PLC controls the fourth on-off valve 7-1 to close and the sixth on-off valve 8 to open. During the verification process, when the required flow rate is small, the first on-off valve 4-1 and the third on-off valve 4-3 are controlled by PLC to open, and the second on-off valve 4-2 is closed. At this time, only the first standard table 5-1 is used. , can also control the opening of the first switching valve 4-1, the closing of the second switching valve 4-2 and the third switching valve 4-3, so that the first standard meter 5-1, the second standard meter 5-2 and the third sta...
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The invention relates to an automobile oil tank truck capacity automatic inspection device with a self-calibration function and inspection method. The device comprises a water pump, a pressure stabilizing tank, a regulating valve, a first switch valve, a second switch valve, a third switch valve, a first standard meter, a second standard meter, a third standard meter, a piston-type standard volume pipe, a fourth switch valve, a fifth switch valve, a sixth switch valve and a circulating water pond and further comprises a liquid level transmitter and a temperature transmitter, wherein the liquid level transmitter and the temperature transmitter are arranged in an automobile oil tank truck. According to the device and method, automatic reading of flow signals, liquid level signals, temperature signals and other signals and automatic processing of data are achieved, storage of capacity inspection results and printing of tables are achieved, self-calibration of a standard flow meter can be achieved, accuracy and reliability of quantity transmission are guaranteed, automation of the inspection process is achieved, manual errors are reduced, and inspection efficiency and accuracy of the device are improved.
Description
technical field [0001] The invention belongs to the technical field of automatic detection, and relates to an automatic verification device and a verification method for the capacity of an automobile oil tanker with self-calibration. Background technique [0002] Automobile oil tank truck is a special vehicle for transporting liquid petroleum and chemical products, and is an important tool for transporting light oil. The certified oil tank can be used as a measuring instrument for oil product trading and trade settlement, and it belongs to the recording instrument item of national compulsory verification. In recent years, with the outbreak of the energy crisis and the continuous rise of crude oil prices, the accurate measurement of the capacity of automobile tankers has also attracted widespread attention and attention. According to JJG133-2005 "Regulations for the Verification of the Capacity of Automobile Oil Tank Trucks", the methods for the verification of the capacity ...
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Login to View More IPC IPC(8): G01F19/00G01F25/00
Inventor 孙斌赵江萍赵玉晓
Owner CHINA JILIANG UNIV