Automatic tank bottom blowdown system

Abstract

The invention discloses an automatic tank bottom blowdown system. The system comprises a tank inside dirt suction device and a tank outside blowdown device which are connected with each other through a blowdown pipe, wherein the tank inside dirt suction device drives a turntable by a drive mechanism, a plurality of dirt suction pipes are distributed on the turntable, and the turntable and the dirt suction pipes rotate with a hollow stand column as a center of circle. By virtue of strong negative-pressure attraction generated by a dirt suction pump of the tank outside blowdown device, dirt is sucked into the dirt suction pipes, then transported into a column sleeve type collection cavity to be gathered, and finally discharged from the tank outside blowdown device through the blowdown pipe, thereby automatically discharging dirt at the bottom of a tank, avoiding inconvenience of manual cleaning in a traditional way, shortening shutdown time, improving production efficiency, lowering production cost greatly, saving manpower and material resources as well as financial resources, and avoiding potential safety hazard caused by manual cleaning. The automatic tank bottom blowdown system is safe and reliable, is reasonable in structure, convenient to operate and high in automation degree, facilitates recycling and retreatment of dirt, and avoids environment pollution likely to be caused by manual cleaning.

Description

technical field [0001] The invention belongs to the technical field of blowdown at the bottom of large tanks, and in particular relates to an automatic blowdown system for tank bottoms which is suitable for cleaning and blowdown at the bottom of oil tanks or water tanks in oil fields. Background technique [0002] Oil tanks and water tanks are commonly used containers in oil fields. Since crude oil and sewage contain a large amount of sediment, most of the sediment will settle at the bottom of the tank after a period of use. If they are not cleaned in time, the measurement of crude oil will be inaccurate. More seriously, it will lead to premature wear of pumps and valves and blockage of pipelines, which will bring huge economic losses to oil field production; at present, the common cleaning method is to empty the oil or water in the tank, open the manhole, and use manual Cleaning; this cleaning method not only seriously affects production, but also wastes a lot of manpower, ...

AI Technical Summary

Problems solved by technology

[0002] Oil tanks and water tanks are commonly used containers in oil fields. Since crude oil and sewage contain a large amount of sediment, most of the sediment will settle at the bottom of the tank after a period of use. If they are not cleaned in time, the measurement of crude oil will be inaccurate. More seriously, it will lead to premature wear of pumps and valves and blockage of pipelines, which will bring huge economic losses to oil field production; at present, the common cleaning method is to empty the oil or water in the tank, open the manhole, and use manual Cleaning; this cleaning method not only seriously affects production, but also wastes a lot of manpower, material resources and financial resources each time, and because the crude oil contains harmful gases, there is a certain safety risk in the cleaning process, especially in summer when the high temperature, the adhesion on the pipe wall The light oil and gas in the crude oil will decompose into harmful gas at high temperature, and when the concentration reaches a certain level, it will explode with an open flame, endangering personal safety, and there is a great potential safety hazard in manual cleaning

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