Product oil storage tank stirring and blending system

Abstract

The invention discloses a product oil storage tank stirring and blending system which comprises a tank body, a jet stirring mechanism is mounted in the tank body and located in the center of the bottom of the tank body, the injection stirring mechanism is connected with an oil injection pipe, the oil injection pipe penetrates out of the tank body to be connected with a circulating pump, the circulating pump is connected with an oil-inlet pipe, an outlet end of the oil injection pipe located in the tank body is arranged in a sealed mode, an oil outlet is formed in the position, close to the outlet end of the oil injection pipe, of the oil injection pipe, a fixed pipeline is vertically connected to the oil outlet to form a base, the injection stirring mechanism comprises a rotary sprayer with a nozzle, the rotary sprayer comprises a housing, the housing is rotatably arranged at the upper end of the fixed pipeline, at least two nozzles are connected around the housing, the nozzles are rotatably connected to the housing, a transmission mechanism capable of being driven by flowing of product oil is mounted in the fixed pipeline. According to the system, the housing and the nozzles are connected with the transmission mechanism so that the system has the technical characteristics that the failure rate is low, the blending period of the product oil can be greatly shortened, and the economic benefit is improved.

Description

Technical field[0001]The present invention relates to a stirring adjustment system, more specifically, to a finished oil storage tank stirring and a system, belonging to the field of petrochemical.Background technique[0002]Refining companies are engaged in a variety of oils, mainly using methods are mounted on a fan-bladed agitator, a duct static or winding on the wall of the finished oil tank, and these conventional systems. Stirring cannot form a full-scale stirring in the tank, which cannot completely solve the problem of deposits, so that the deposit continues to be stacked in the bottom, and the oil is long, the oil consumption is large, and it is not possible to solve the long time. Layers, oils are unstable, tank occupation, long time, improve processing costs, can not provide the desired oil in the market for oil products, affecting the capacity of the enterprise to the market, reducing economic benefits.[0003]At present, most of the most commonly used finished oil tanks in ...

AI Technical Summary

Problems solved by technology

[0002] In the blending of various oil products in refining and chemical enterprises, the main methods are fan agitator installed on the tank wall of the refined oil tank, pipeline static blender, air blending and other methods. These conventional systems Stirring cannot form all-round stirring in the tank, and cannot completely solve the problem of sediment accumulation, so that the sediment continues to accumulate at the bottom of the tank, and the oil blending time is long, the oil consumption is large, and it cannot be solved after long-term storage. layer, unstable oil quality, large tank occupation, long time, increased processing costs, unable to provide the required oil products according to the market demand for oil types, affecting the company's ability to adapt to the market and reducing economic benefits

[0003] At present, most of the most commonly used refined oil tanks in China use extended-type mechanical agitators. According to the technical requirements for oil blending, the oil in the tank needs to be mixed evenly within 3 hours. However, it was found during actual use that this traditional mechanical agitator The agitator works poorly, not only takes far more than 3 hours, but also often has safety problems such as leakage of sealing points, which affects the safe operation of the product oil tank area

[0004] at 30000m 3 For gasoline tanks (ф46000×20400mm), at least two laterally extending agitators are required, such as Figure 10 Shown is the layout of the agitator in the prior art. According to the size of the tank, two or three agitators can be installed on the tank. The centerline of the agitator should deviate from the centerline of the tank by an angle a, and the angle a is generally taken as 7 -12 degrees, take the lower limit for small tanks, and the upper limit for large tanks, and the angle a generally deviates to the left. It is recommended to concentrate on the 1 / 4 circumference of the tank body, so that the kinetic energy of the agitator can be better utilized, such as Figure 11 Shown is a schematic diagram of the structure of the agitator in the prior art (the structure of the intrusive mechanical agitator). This agitator is mainly composed of an explosion-proof motor, a transmission mechanism, a shaft, an impeller, a sealing mechanism and a support, etc., and can be installed before leaving the factory. After the assembly is completed, you only need to connect the reserved flange with the pipe wall through bolts, nuts and gaskets on site. The agitator is installed at a fixed angle, and its shaft only rotates without swinging. The flow state of the tank is fixed, the dead area is large, and the oil blending takes a long time, which seriously restricts the turnover of the tank body. In addition, when the agitator is working for a long time, the sealing mechanism is prone to leakage, which affects the oil blending speed and threatens the refined oil. Safe operation of the tank area

[0005] In summary, the disadvantages of the above-mentioned prior art: 1. The traditional intrusion-type mechanical agitator is installed at a fixed angle, and its shaft only rotates without swinging. The flow state of the oil product under the working state of this agitator is fixed, and the dead angle area bigger

It takes a long time to reconcile oil products, which seriously restricts the turnover of tanks

2. As the running time of traditional mechanical agitators increases, the sealing mechanism is prone to leakage

Especially during operation, the problem of oil leakage is more serious, which affects the safe operation of the refined oil tank area

3. When the traditional agitator breaks down and needs to be dealt with, it needs to be cleaned manually, which wastes a lot of manpower and material resources

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