The concave-wall jet characteristics in vertical cylinder separator with inlet baffle component

Zhang, Jing; Ge, Zhongyi; Wang, Wei; Bi, Gong; Li, Yaxia; Wu, Jianhua

doi:10.1016/j.cjche.2021.05.023

Cited by 4 publications

(5 citation statements)

References 45 publications

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“…According to Zhang et al, in the vertical cylinder separator, compared with the plate baffle and the convex baffle, the flow became more stable when the inlet baffle was concave because the outlet was similar to the convergent nozzle. In this study, the upper and lower ends of the baffle were closed and soldered to the separator, as shown in Figure .…”

Section: Three Optimization Schemesmentioning

confidence: 99%

Performance Investigation and Optimization of the Primary Separation Part of the Oil-Gas Separator

Wang

Hu²,

Xu³

et al. 2023

Ind. Eng. Chem. Res.

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Oil-gas separators are significant in the safe and reliable operation of the natural gas storage system. The separation efficiency of the conventional primary separation part of the oil-gas separator was not high enough, causing the insufficient performance of the whole separator. Three modification schemes were proposed to optimize the primary separation part of the oil-gas separator, including adding a curved baffle at the entrance, forming a centrifugal separation through the tangential inlet, and forming a cyclone structure by adding an inner cylinder. The separation performance was obtained through the Eulerian–Lagrangian approach numerically. For each scheme, a variety of parameter combinations were designed by the orthogonal array and the structure with the highest separation efficiency was reasonably selected. The separation efficiency of the centrifugal structure was higher than that of the collision structure on the whole. To evaluate the feasibility of the practical application, the three structural schemes were compared coupled with the analytic hierarchy process (AHP) based on the separation efficiency, the pressure loss, the uniformity of filter inlet velocity, and the modification cost. The results showed that the scheme of adding a curved baffle with reasonable structural parameters at the entrance had better comprehensive performance, which could be used as the optimal scheme in improving the oil-gas separator applied in natural gas storage.

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Section: Three Optimization Schemesmentioning

confidence: 99%

Performance Investigation and Optimization of the Primary Separation Part of the Oil-Gas Separator

Wang

Hu²,

Xu³

et al. 2023

Ind. Eng. Chem. Res.

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“…The average gas treatment capacity of a single set of axial inlet type cyclone separator is 20 × 10 4 m 3 /d, the average liquid treatment efficiency is 98%; At this time, the liquid level of the liquid collecting tank of the entire separator system is accurately controlled, the closed burner burns normally, and no liquid is discharged from the gas outlet of the separator, and no gas escapes from the liquid outlet. 31,32…”

Section: Indoor Test and Field Applicationmentioning

confidence: 99%

“…The average gas treatment capacity of a single set of axial inlet type cyclone separator is 20 3 10 4 m 3 /d, the average liquid treatment efficiency is 98%; At this time, the liquid level of the liquid collecting tank of the entire separator system is accurately controlled, the closed burner burns normally, and no liquid is discharged from the gas outlet of the separator, and no gas escapes from the liquid outlet. 31,32 During normal emission, the full set of inlet type cyclone separator system is turned on, the average gas treatment capacity is 40 3 10 4 m 3 /d, The average liquid treatment efficiency is 98.5%. and the average liquid treatment capacity is 6 3 10 3 m 3 /d, the liquid treatment capacity is 6.05 3 10 3 m 3 /d.…”

Section: Indoor Simulation Testmentioning

confidence: 99%

Optimization analysis and Field application of gas-liquid cyclone separator based on CFX

Wang

Xie

Wang³

et al. 2022

Advances in Mechanical Engineering

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At present, large and cumbersome gravity sedimentation separators are generally used in the separation of liquid and gas in the wellbore during emergency blowout or circulating degassing in drilling, and innovation and improvement are urgently needed. In this paper, CFX commercial simulation software is used to analyze the cut-in cyclone separator, and the axial inlet type cyclone separator with different length ratios of cylinder-cone section in swirling flow section under different flow channel structures, and carried out indoor simulation and field test verification. The results show that the axial inlet type cyclone separator is more suitable for gas-liquid separation than the cut-in cyclone separator, and the separation can be well improved by increasing the length-diameter ratio of the cyclone section under the cut-in cyclone separator structure. Finally, the experimental separation efficiency reached 99%, and the field test separation efficiency reached more than 98%. This greatly improves the separation efficiency of liquid and gas during the drilling process, and also plays a certain role in promoting the separation of gas and liquid in the entire oil and gas industry.

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“…The mechanical oil-gas separator incorporates two main structures, namely, the gravity separation and centrifugal one [5]. The former primarily depends on structures like inlet baffles or deflector plates to alter the airflow direction, harnessing the inertia of liquid droplets for separation.…”

Section: Introductionmentioning

confidence: 99%

“…The findings suggested that reducing the gap width, increasing the number of bends, and raising the number of channels can improve separation efficiency, albeit at the cost of increased pressure drops. In the research carried out by Zhang et al [5], the impact of radial baffle curvature on the jet flow within the separator was examined using experiments and numerical simulations. The results revealed that the concave baffle jet was confined to a narrow region near the concave baffle, leading to reduced flow disturbances in the center of the separator.…”

Section: Introductionmentioning

confidence: 99%

Optimization of an Oil–Gas Separator of Gas Storage Compressor with Consideration of Velocity Uniformity in Filter Inlets

Hu,

Peng,

Chen

et al. 2023

Energies

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The oil–gas separator of the gas storage compressor serves as crucial equipment in a natural gas storage system to improve gas storage purity and efficiency. Its optimization is also essential to improve the separation efficiency and lifespan. Collision and centrifugal separation are two widely used optimized structures for oil–gas separators, and the enhancement in separation efficiency, as well as the decrease in pressure loss of optimized separators, has been thoroughly discussed. However, the velocity uniformity in the filter inlet has not been considered, which affects the filtration performance. Thus, the overall efficiency of the separator is reduced. Accordingly, optimization of an oil–gas separator with the consideration of velocity uniformity in filter inlets is introduced in this study. The effects of critical dimension parameters of optimized equipment on separator performance were analyzed. The results show that bb = 0.4, lb = 3, hb = 1.5, and kb = 0.5 and le = 0.9 and he = 4.11, as well as lc = 0.5 and dc = 0.52, are suitable for the case of placing baffles, adjusting the separator height and inlet position, as well as adding an inner cylinder, respectively. Subsequently, the analytic hierarchy process was employed to compare different optimized cases. It is observed that the overall rating for adding an inner cylinder reaches 88.46, which is the more suitable optimized method for the oil–gas separator. This work is relevant for oil–gas systems to improve their separation efficiency and enhance the gas storage performance.

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The concave-wall jet characteristics in vertical cylinder separator with inlet baffle component

Cited by 4 publications

References 45 publications

Performance Investigation and Optimization of the Primary Separation Part of the Oil-Gas Separator

Performance Investigation and Optimization of the Primary Separation Part of the Oil-Gas Separator

Optimization analysis and Field application of gas-liquid cyclone separator based on CFX

Optimization of an Oil–Gas Separator of Gas Storage Compressor with Consideration of Velocity Uniformity in Filter Inlets

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