scholarly journals USING THE SHOCK-SPRAY PACKING TO REDUCE THE HYDRAULIC RESISTANCE IN APPARATUS

2020 ◽  
Vol 2018 (1) ◽  
pp. 25-25
Author(s):  
Viktor Laletin ◽  
Matvey Andreenko ◽  
Aleksey Bal'chugov
Keyword(s):  
Hydraulic Resistance ◽  
Direct Flow ◽  
Regular Packing ◽  
Highly Effective ◽  
Flow Valve

It is shown that the replacement of direct-flow valve plates with a new highly effective shock-spray regular packing will significantly reduce the hydraulic resistance in the rectification column of isolation of the isopentane fraction.

scholarly journals IMPACT OF THE DESIGN OF THE CONTACT DEVICE ON HYDRAULIC RESISTANCE OF RECTIFICATION COLUMN

2018 ◽  
Vol 1 (12) ◽  
pp. 72-75
Author(s):  
Viktor Laletin ◽  
Matvey Andreenko ◽  
Aleksey Bal'chugov
Keyword(s):  
Hydraulic Resistance ◽  
Cross Section ◽  
Distillation Column ◽  
Energy Costs ◽  
Design Features ◽  
Rectification Column ◽  
Direct Flow ◽  
Regular Packing ◽  
Low Hydraulic Resistance ◽  
Flow Valve

ы, клапанные тарелки, ударно-распылительная насадка. Abstract. It is shown that the use of a new highly efficient shock-spray regular packing instead of direct-flow valve plates in the distillation column for the separation of the isopentane fraction will significantly reduce the hydraulic resistance and energy costs. The low hydraulic resistance of the shock-spray packing is explained by its design features: regular layout, high free cross section, low amount of retained fluid

Entrainment of liquid from direct-flow valve trays with baffles

1982 ◽  
Vol 18 (4) ◽  
pp. 167-170
Author(s):  
Zh. A. Tasev ◽  
Zh. S. Stefanov
Keyword(s):  
Direct Flow ◽  
Flow Valve

scholarly journals Transcatheter Valve-in-Valve Implantation Edwards Sapien XT in a Direct Flow Valve after Early Degeneration

Authorea ◽  
2020 ◽  
Author(s):  
Bilge Duran Karaduman ◽  
H seyin Ayhan ◽  
Serkan Bulguro lu ◽  
Telat Keles ◽  
Engin Bozkurt
Keyword(s):  
Direct Flow ◽  
Edwards Sapien ◽  
Valve In Valve ◽  
Transcatheter Valve ◽  
Valve Implantation ◽  
Flow Valve

scholarly journals Calculation of hydraulic resistance in the separator of the direct-flow control valve with a rotary lock

2020 ◽  
Vol 220 ◽  
pp. 01073
Author(s):  
Anna Kapranova ◽  
Anton Lebedev ◽  
Alexander Melzer
Keyword(s):  
Flow Control ◽  
Hydraulic Resistance ◽  
Control Valve ◽  
Resistance Coefficient ◽  
Hydrodynamic Cavitation ◽  
Qualitative Assessment ◽  
Design Parameters ◽  
Flow Control Valve ◽  
Direct Flow ◽  
Method Of Calculation

The purpose of this work is to analyze the coefficient of hydraulic resistance in the separator of a direct-flow control valve with a rotary lock according to the approximation of the superposition of pressure losses in elementary local resistances. In contrast to the known methods of constructing simulation models, the proposed analytical method of calculation is based on a qualitative assessment of the specified coefficient in the implementation of throttling of fluid flows in the “separator-rotary lock” unit, depending on the design and operating parameters of the process. It was found that, within the selected range of variation of the separator parameters, an increase in the valve opening degree from 20% to 50% leads to a decrease in the hydraulic resistance coefficient by 19.6 times, and an increase in this degree from 20% to 100% is associated with a 42.4-fold decrease in the studied characteristic. This circumstance justifies the effectiveness of the proposed method for throttling the flows of the working medium. The results obtained are used to study the influence of the main design parameters of the “separator-butterfly valve” unit on the flow capacity of the control valve and are relevant for stochastic modeling of the hydrodynamic cavitation process.

scholarly journals EMPIRICAL DEPENDENCE OF THE HYDRAULIC RESISTANCE OF THE WA-TER LAYER OF THE REGULAR PACKING ON THE RESISTANCE COEFFI-CIENT AND IRRIGATION DENSITY

2021 ◽  
Vol 2021 (1) ◽  
pp. 41-44
Author(s):  
Aleksey Bal'chugov
Keyword(s):  
Hydraulic Resistance ◽  
Empirical Dependence ◽  
Regular Packing ◽  
Irrigation Density ◽  
Criterion Equation ◽  
Coefficient Of Hydraulic Resistance

A criterion equation for the coefficient of hydraulic resistance of a layer of regular packing was ob-tained, and a dependence was obtained that connects the hydraulic resistance of a dry and irrigated packing.

Transcatheter valve‐in‐valve implantation Edwards Sapien XT in a direct flow valve after early degeneration

2020 ◽  
Vol 35 (12) ◽  
pp. 3592-3595
Author(s):  
Bilge Duran Karaduman ◽  
Hüseyin Ayhan ◽  
Serkan Bulguroğlu ◽  
Telat Keleş ◽  
Engin Bozkurt
Keyword(s):  
Direct Flow ◽  
Edwards Sapien ◽  
Valve In Valve ◽  
Transcatheter Valve ◽  
Valve Implantation ◽  
Flow Valve

Operating indices of fractionating towers with direct-flow valve trays for naphtha rerunning

1973 ◽  
Vol 9 (4) ◽  
pp. 293-296
Author(s):  
A. I. Skoblo ◽  
N. N. Ipatenko ◽  
L. N. Motus ◽  
G. P. Pikalov ◽  
B. A. Sobolev
Keyword(s):  
Direct Flow ◽  
Flow Valve
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