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Vertical storage tank leakage monitoring system with dual-layer tank bottom plate structure

A technology for monitoring systems and vertical storage tanks, applied to containers, packaging, transportation and packaging, etc., can solve the problems of large economic losses, failure to find leakage, time-consuming and labor-intensive problems, to avoid leakage accidents, eliminate flow dead zones, reduce The effect of the leak

Active Publication Date: 2012-11-21
ZHEJIANG PROVINCIAL SPECIAL EQUIP INSPECTION & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, the defects of the tank bottom have been detected by regular off-line methods of opening the tank, including magnetic flux leakage, eddy current, ultrasonic, magnetic particle, etc. The detection needs to stop production, emptying, cleaning, rust removal and other processes, which is time-consuming and laborious, and the shutdown causes huge economic losses
Moreover, these methods are all post-event detection methods, which can only be used for periodic detection, and cannot detect leaks that are occurring during operation, which is crucial to the safe operation of storage tanks

Method used

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  • Vertical storage tank leakage monitoring system with dual-layer tank bottom plate structure
  • Vertical storage tank leakage monitoring system with dual-layer tank bottom plate structure
  • Vertical storage tank leakage monitoring system with dual-layer tank bottom plate structure

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Embodiment Construction

[0022] Further description will be given below in conjunction with the embodiments shown in the accompanying drawings.

[0023] As shown in the figure, the vertical storage tank leakage monitoring system provided by the present invention has a double-layer tank bottom plate structure. The vertical storage tank (6) bottom structure includes an upper bottom plate (4), a lower bottom plate (3) and a The airtight cavity 8 between the base plate and the lower base plate. The upper and lower bottom plates are spliced ​​by multiple steel plates. The splicing of the bottom plates adopts a butt joint structure. After welding, the internal and external quality of the welds are inspected to ensure the airtightness of the inner cavity of the sandwich formed; and the diameter of the lower bottom plate is slightly smaller than that of the upper bottom plate. Large to facilitate welding around the upper and lower plates. The airtight cavity is formed by setting a support structure between t...

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Abstract

The invention relates to a vertical storage tank leakage monitoring system with a dual-layer tank bottom plate structure. The provided system aims at realizing real-time monitoring of the leakage situation of a tank bottom plate of a vertical storage tank. The technical scheme is that the vertical storage tank leakage monitoring system with the dual-layer tank bottom plate structure comprises the vertical storage tank which consists of a tank body and a tank body, and a leakage monitoring system which is used for monitoring leaked gas. The vertical storage tank leakage monitoring system with the dual-layer tank bottom plate structure is characterized in that the tank bottom comprises an upper layer bottom plate, a lower layer bottom plate and a closed cavity which is arranged between the upper layer bottom plate and the lower layer bottom plate, the leakage monitoring system comprises a circulating pipeline which is provided with a circulating pump and is connected with the cavity, an inert gas source which is communicated with the circulating pipeline, and a PLC (programmable logic controller) control center which is respectively connected with an infrared gas transmitter, a pressure transmitter, a temperature and humidity transmitter and the circulating pump through data lines.

Description

technical field [0001] The invention relates to a vertical storage tank leakage monitoring system configured with a double-layer tank bottom plate structure. Background technique [0002] Vertical storage tank is an important equipment for storage, separation, export and transfer of crude oil, intermediate oil, refined oil, chemical raw materials and petrochemical products. Due to the long-term operation under the conditions of natural environment and liquid level changes, the vertical storage tanks inevitably have defects such as aging and corrosion; however, a large number of storage tanks in my country are currently in the stage of equipment aging and serious corrosion. "Drip, leak" accidents happen from time to time. Most of the media stored in the storage tank are flammable, explosive, volatile and even toxic. Once leaked, it is easy to cause fire and explosion, causing serious economic losses and environmental pollution. The bottom plate of the tank is located at the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D90/50
Inventor 丁守宝刘富君赵力伟钱岳强孔帅凌张伟郑慕林唐萍夏珺芳王丽芹
Owner ZHEJIANG PROVINCIAL SPECIAL EQUIP INSPECTION & RES INST
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