Automatic hole sealing device for liquid level measurement guide pipe of inner floating roof storage tank

Abstract

The invention discloses an automatic hole sealing device for the liquid level measurement guide pipe of an inner floating roof storage tank, which belongs to the field of petrochemical product storage systems. The automatic hole sealing device is installed in the liquid level measurement guide pipe of the inner floating roof storage tank. The automatic hole sealing device at least includes: a front plate, a rear cover, and a float of the hole sealing device. The front plate is provided with a front plate hole. At least one rear cover hole is opened on the rear cover, and the front plate is connected with the rear cover to form a box, in which the hole sealer float is arranged. Using the buoyancy of the liquid and the gravity of the float of the hole sealer, the float of the hole sealer can automatically open or close the front plate hole. The function of plugging the liquid level hole of the liquid level measurement guide pipe solves the problem that oil and gas are discharged from the liquid level small hole of the liquid level measurement guide pipe to the atmosphere through the breathing valve on the top of the tank, which can effectively reduce the leakage caused by the liquid level measurement guide pipe. Oil and gas loss due to liquid level pinholes.

Description

technical field [0001] The invention relates to the field of storage systems for petrochemical products, in particular to an automatic hole sealing device for liquid level measurement guide pipes of inner floating roof storage tanks. Background technique [0002] The inner floating roof storage tank is formed by adding a floating roof inside the storage tank with a vault. Dust, etc. enter the tank to ensure that the medium in the tank is clean. Internal floating roof storage tanks are mainly used to store light oil, such as gasoline, aviation kerosene, etc. There is a liquid level measuring guide tube in the inner floating roof tank, which runs through the floating plate from the top of the tank to the bottom of the tank, and the oil surface can be seen directly from the liquid level measuring guide tube. [0003] The liquid level measurement guide pipe is the main part of the liquid level measurement device of the inner floating roof storage tank. A pair of symmetrical l...

AI Technical Summary

Problems solved by technology

[0005] The small hole on the liquid level measurement guide pipe causes the oil and gas in the pipe to volatilize between the top of the storage tank and the inner floating roof, and then discharge to the atmosphere through the breather valve on the top of the tank, which not only causes oil and gas loss, but also affects the safe operation of the storage tank

According to the records in "Oil Meter Reader (Third Edition)" published by Sinopec Publishing House, in the internal floating roof gasoline storage tank, the distance is 0.5m and the pore area is 1cm. 2 A pair of small liquid level holes, the oil and gas discharged every day and night can reach 12kg, so it is estimated that the loss caused by the many liquid level small holes set on the liquid level measurement guide pipe is very large

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