Method for salvaging scattered objects in liquefied gas storage tank
A technology for liquefied gas storage tanks and scattered objects, which is applied in the field of salvage and can solve problems such as cost
Active Publication Date: 2022-03-08
深圳华安液化石油气有限公司 +2
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Problems solved by technology
[0006]
The technical problem to be solved by the present invention is to provide a method for salvaging scattered objects in a liquefied gas storage tank in view of the above-mentioned defects of the prior art, aiming to solve the problem that the existing salvage method adopts the method of first clearing the tank and then salvaging, which consumes a lot of Human, time, and economic costs
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[0047] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0048] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0049] The low temperature and pressure LNG storage tank stores low temperature, flammable and explosive liquefied natural gas. In order to ensure the equipment safety of the LNG storage tank, it is usually equipped w...
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The invention discloses a method for salvaging scattered objects in a liquefied gas storage tank, which comprises the following steps of: closing a pipe orifice channel for communicating an integrated measuring instrument with an isolating valve of the liquefied gas storage tank, and dismantling a protective cover box of the integrated measuring instrument; a hook located at one end of a rope body is lowered to the isolating valve along the pipe opening channel through the rope body; the isolating valve is opened, and the rope body is lowered to move the hook into the liquefied gas storage tank to hook scattered objects; and the hook and the scattered objects are pulled out of the liquefied gas storage tank by pulling up the rope body. According to the invention, the salvage operation can be carried out without cleaning the tank, and the problem that a large amount of manpower, time and economic cost are consumed due to the fact that the conventional salvage method adopts a manner of cleaning the tank first and then salvage is solved.
Description
technical field [0001] The invention relates to the technical field of salvage, in particular to a method for salvaging scattered objects in a liquefied gas storage tank. Background technique [0002] The low temperature and pressure LNG storage tank stores low temperature, flammable and explosive liquefied natural gas. In order to ensure the equipment safety of the LNG storage tank, it is usually equipped with an integrated measuring instrument (LTD equipment), which can monitor the storage The liquid level, temperature and density (Level, Temperature and Density) in the tank can also track the liquid level or reach the specified liquid level according to the instructions, and carry out data collection and analysis, so as to provide basic data for predicting stratification and tumbling. [0003] The integrated measuring instrument usually includes a measuring probe, which is driven by a linkage cable, moves up and down in the LNG liquid in the storage tank and measures the ...
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IPC IPC(8): F17C13/00
CPCF17C13/00Y02E60/32
Inventor 任春霞方刚叶延金何红平安成名张浩周火荣冯志明林运冉陈政大
Owner 深圳华安液化石油气有限公司