Intrinsically safe inerting protection method and device for oil storage tank
An intrinsically safe, oil storage tank technology, used in packaging, transportation and packaging, gas/liquid distribution and storage, etc., to achieve pressure balance and stability, avoid repeated start and stop, and improve use efficiency.
Active Publication Date: 2010-07-07
LOGISTICAL ENGINEERING UNIVERSITY OF PLA +1
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[0008] The purpose of the present invention is to solve the problem of fire prevention and explosion protection of oil storage tanks, and provide an active inert protection method that uses inert gas to fill oil storage tanks and reduce oxygen content, so that the inert gas forms a set of seals between the oil storage tanks The circulating breathing system controls the oxygen content in the air in the oil tank within 10% through the detection of the online oxygen concentration analyzer, so that the oil tank is always in an inert protection state, so as to achieve the purpose of active protection for the intrinsic safety of the oil storage tank
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[0053] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0054] Such as figure 1 , an intrinsically safe oil storage tank inert protection device includes an inert gas generating device 1, a purification device 2, a buffer device 5, a breathing pipe network 11 and an electrical control device ( figure 1 Not shown in ), wherein the breathing pipe network 11 is communicated with a plurality of oil tanks 12 through an air inlet shut-off valve 15, and an exhaust shut-off valve 14 is installed on the oil tank to communicate with the outside atmosphere.
[0055]The inert gas generating device 1 can be a fuel inert gas generating device, and its inert gas outlet port communicates with the purifying device 2, and the outlet port of the purifying device 2 communicates with the first supercharging device 3-1, and the first supercharging device 3-1 communicates with the The inlet port of the first one-way valve 4 - 1 i...
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The invention discloses an intrinsically safe inerting protection method and an intrinsically safe inerting protection device for an oil storage tank, relates to a method and a device for active fire and explosion prevention of the oil storage tank, and aims to solve the problem of fire and explosion prevention of the oil storage tank. The method comprises the following steps: a, performing inerting on each oil tank in sequence to ensure that each oil tank achieves an inexplosive condition, namely, the oxygen concentration of gas in the tank is lower than 10 percent; b, detecting the pressure of a pipe network for supplying inert gas to the oil tank, and supplying the inert gas to the pipe network and inputting the inert gas to the oil tank through the pipe network if the pressure is lower than a set lower limit value; c, detecting the pressure of the pipe network for supplying the inert gas to the oil tank, emitting the inert gas in the pipe network if the pressure exceeds a set upper limit value; and d, detecting the oxygen concentration in the pipe network for supplying the inert gas to the oil tank, and repeating the step a if the concentration exceeds the set upper limit value. The device comprises a buffer device, a breathing pipe network, a first pressure transmitter, a second pressure transmitter, an online oxygen analyzer and an electric control device.
Description
technical field [0001] The invention relates to an active fireproof and explosion-proof method and device for oil storage tanks, in particular to a method and device for fireproof and explosion-proof oil storage tanks using inertization technology. Background technique [0002] In the field of safety research, it is recognized that "inerting technology" is the most effective anti-explosion and anti-explosion technology, and "inerting technology" suitable for different purposes is a key topic of explosion-proof technology research at home and abroad and in various professional fields. When personnel are not the main purpose of protection, "active inerting technology" has been widely used. Such as oil tanker inert fire prevention and explosion protection, chemical production process inert protection, etc. [0003] "Inerting technology" is to inject a gas that replaces oxygen, such as carbon dioxide, nitrogen, inert gas and a mixture of the above gases, into a closed space wit...
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IPC IPC(8): B65D90/44B65D90/48B65D90/32B65D90/36B65D90/22F17D1/04
Inventor 杜扬汪映标钱海兵吴明军蒋新生周建忠王冬
Owner LOGISTICAL ENGINEERING UNIVERSITY OF PLA
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