Design and technological features of shaping of single-screw pump rotor profile

1999 ◽  
Vol 35 (12) ◽  
pp. 791-793
Author(s):  
V. V. Shatrov ◽  
G. N. Gorshkov ◽  
A. I. Lur'e ◽  
V. K. Zal'tsberg ◽  
A. V. Chadov
Keyword(s):  
Screw Pump ◽  
Pump Rotor ◽  
Single Screw ◽  
Rotor Profile

Theory Research on Full Metal Single Screw Pump

2013 ◽  
Vol 345 ◽  
pp. 233-237
Author(s):  
Ben Liang Yu ◽  
Jun Fei Wu ◽  
Ying Yu
Keyword(s):  
Flow Rate ◽  
Theoretical Basis ◽  
Theoretical Research ◽  
Reciprocating Motion ◽  
Screw Pump ◽  
Single Screw ◽  
Rotor Profile ◽  
Motion Characteristics ◽  
Theory Research

This paper first studied the feasibility in application and advantages of the the full metal single screw pump by the method of theoretical research . Then the paper deducted the motion characteristics of the rotor around the stator and flow rate of the metal single screw pump .It is pointed that the center of the rotor profile is always located in the long shaft of the section of stator in any section .As the rotor rotates, the center of the rotor profile on this section takes straight reciprocating motion along the long axis of stator section .The results indicate that it exists feasibility in the designing and processing of full metal single screw pump. Thereby it provides theoretical basis for the application of full metal screw pump.

Geometrical Design and Investigation of a New Profile of the Three Screw Pump

2011 ◽  
Vol 133 (9) ◽  
Author(s):  
Jian Xu ◽  
Quanke Feng ◽  
Weifeng Wu
Keyword(s):  
Contact Line ◽  
Optimization Design ◽  
Line Length ◽  
Geometrical Parameters ◽  
Flow Area ◽  
Screw Pump ◽  
Pump Rotor ◽  
Rotor Profile ◽  
Hole Area ◽  
Better Than

This paper presents a new edge blunting method of the three screw pump rotor with an elliptic arc and equations of the rotor profile after edge blunting. Through comparisons of different geometrical parameters of the pump, i.e., flow area, contact line length per lobe, blow hole area, etc., the new profile is proved to be better than the existing profiles of the three screw pump. The new streamlined profile, with a significantly smaller blow hole area, is of reference significance for the optimization design and further improvement of three screw pump.

Research on the Impacts of Screw Speed on All-Metal Screw Pump

2014 ◽  
Vol 703 ◽  
pp. 425-429
Author(s):  
Jun Fei Wu ◽  
Zhi Li ◽  
Fan Guo Meng ◽  
Ben Liang Yu
Keyword(s):  
Geometric Model ◽  
Constraint Condition ◽  
3D Flow ◽  
Screw Speed ◽  
Ansys Fluent ◽  
Screw Pump ◽  
Single Screw ◽  
Dynamic Mesh Technique ◽  
Fluent Software ◽  
Mesh Technique

Compared with traditional screw pump,all-metal screw pump have more advantages in the oil extraction. In this paper, all-metal single screw pump's geometric model was made by PROE software; then the dynamic mesh technique was applied to mesh the model and constraint condition was applied in the ANSYS-FLUENT software. 3D flow field was numerical analyzed In that software, the impacts of screw speed on volume flow and volumetric efficiency were concluded, the conclusion can offer some valuable guidances to the all-metal single screw pump's design.

Design of down-Hole Oil-Water Separation and Reinjection in the same Well System with Surface Driving Single Screw Pump

2011 ◽  
Vol 339 ◽  
pp. 595-602 ◽  
Author(s):  
Chuan Wei Zhao ◽  
Zeng Liang Li
Keyword(s):  
General Structure ◽  
Environmental Benefits ◽  
Screw Pump ◽  
Water Separation ◽  
Single Screw ◽  
Innovative System ◽  
Oil Water Separation ◽  
Oil Water ◽  
Oil Production Technology ◽  
The Cost

Down-hole oil-water separation and reinjection in the same well system can reduce the cost of lifting the water and the ground pollution due to the treatment of production water, which can bring good economic and environmental benefits. By combining down-hole oil-water separation technology with surface driving single screw pump oil production technology, the author designed an innovative system of down-hole oil-water separation and reinjection in the same well. In this paper, the general structure, working principle and structure characteristics of the system are introduced. The structure composition and the connection method of each part are described, and the calculation method of basic parameters of the single screw pump in the system is given.

Study on Single Screw Pump with Narrow Gap

2019 ◽  
Vol 2019.94 (0) ◽  
pp. P029
Author(s):  
Yuta ABE ◽  
Masaaki HORIE
Keyword(s):  
Narrow Gap ◽  
Screw Pump ◽  
Single Screw

The Design of Double-Helix Single-Screw Pump Based on PRO/E

2010 ◽  
Vol 37-38 ◽  
pp. 1437-1441
Author(s):  
Xiao Bing Huang ◽  
Guang Wen
Keyword(s):  
Optimal Design ◽  
3D Modeling ◽  
Double Helix ◽  
Virtual Assembly ◽  
Screw Pump ◽  
Multiphase Pump ◽  
Single Screw ◽  
Experimental Prototype ◽  
Working Principle

Based on the unique merit of double-helix single-screw pump, its working principle is analyzed and its rolling bush and screw profile are designed in this paper. The 3D modeling and virtual assembly of double-helix Screw Pump are established based on Pro/E. The results showed that the multiphase pump could assembly with the design without interference. It provided the reference for optimal design and experimental prototype manufacturing.

A mathematical model of the rotor profile of the single-screw compressor

2002 ◽  
Vol 216 (3) ◽  
pp. 343-351 ◽  
Author(s):  
S-C Yang
Keyword(s):  
Mathematical Model ◽  
Parameter Family ◽  
Cutting Edge ◽  
Screw Compressor ◽  
Single Screw ◽  
Rotor Profile ◽  
The Family ◽  
Screw Rotor ◽  
The One ◽  
Screw Rotors

This paper presents a method for determining the basic profile of a single-screw compressor including a gate rotor and a screw rotor. The inverse envelope concept for determining the cutting-edge curve of the gate rotor is presented. Based on this concept, the required cutter for machining the screw rotor can be obtained by an envelope of the one-parameter family of obtained screw rotors. The obtained screw rotor is an envelope of the family of gate rotor surfaces. Let the obtained envelope of the one-parameter family of gate rotor surfaces become the generating surface. The inverse envelope can be used to obtain the envelope of the family of generating surfaces. Then, the profile of the gate rotor with the cutting-edge curve can be easily obtained. The proposed method shows that the gate rotor and the screw rotor are engaged along the contact line at every instant. This is essential to reduce the effect of leakage on compressor performance. In this paper, a mathematical model of the meshing principle of the screw rotor with the gate rotor is established. As an example, the single-screw compressor for a compressor ratio of 11:6 is determined with the aid of the proposed mathematical model. Results from these mathematical models should have applications in the design of single-screw compressors.

Influence of geometrical dimensions on the profile slippage in the hypogerotor pump

2018 ◽  
Vol 56 (4) ◽  
pp. 493
Author(s):  
Nguyen Hong Thai ◽  
Truong Cong Giang
Keyword(s):  
Contact Point ◽  
Tooth Profile ◽  
Geometrical Dimension ◽  
Slip Coefficient ◽  
Pump Rotor ◽  
Rotor Profile ◽  
Dimensional Parameters ◽  
Geometrical Dimensions

Relative sliding between two profiles in the contact point causes wearing out of the tooth profile. Aiming to evaluate influence of the geometrical dimension parameters of the pump rotor profile on the wear, in this paper, the authors established equation for determining slip coefficient from geometrical dimensions. Furthermore, the authors have investigated and evaluated the phenomenon of the profile slipping in order to find out the geometrical dimensional parameters for avoiding unequal wearing of the inner and outer rotors of the hypogerotor pump

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