THE USE OF FIRE EXTINGUISHING INSTALLATIONS WITH WATER JET CUTTING SYSTEMS AT POWER ENGINEERING FACILITIES

2016 ◽  
pp. 7-12
Author(s):  
M. Aleshkov ◽  
◽  
M. Bezborodko ◽  
I. Gusev ◽  
◽  
...  
Keyword(s):  
Water Jet ◽  
Power Engineering ◽  
Fire Extinguishing ◽  
Water Jet Cutting

scholarly journals Effect of the Rock Stress on the Water Jet Cutting Performance

2021 ◽  
Author(s):  
Battista Grosso ◽  
Valentina Dentoni ◽  
Augusto Bortolussi
Keyword(s):  
Numerical Models ◽  
Step Function ◽  
Water Jet ◽  
The State ◽  
Cutting Performance ◽  
Lagrangian Analysis ◽  
State Of Stress ◽  
Water Jet Cutting ◽  
Cutting Rate ◽  
Available Technology

AbstractUnderground quarrying is rarely adopted for granite extraction due to the difficulties in the implementation of traditional technologies (drilling and explosive). As alternative to drilling and explosive, the combination of diamond wire and water jet seems to be the most promising available technology. The cutting performance achievable with the water jet technology depends on the operative parameters, the material characteristics and the state of stress within the rock massif. To assess the effect of the state of stress on the cutting rate, laboratory tests have been performed with an oscillating water jet machine on granite samples subjected to a static load. The stress distribution in the layer of rock to be removed has been evaluated by numerical simulation with the FLAC code (Fast Lagrangian Analysis of Continua). The correlation between the results of the cutting tests and the numerical models of the rock samples has been inferred. Starting from a conceptual model, which theoretically describes the relationship between the cutting rate and the stress, a step function was defined that indicates the ranges of stress where predefined values of the cutting rate are workable.

Design and Experiment of Thermal Water and Mechanical Deicing Device

2014 ◽  
Vol 532 ◽  
pp. 311-315 ◽  
Author(s):  
Zi Cheng Zhu ◽  
Xue Jun Zhang ◽  
Guo Liang Mou ◽  
Chao Xin Li ◽  
Jun You
Keyword(s):  
Traffic Accident ◽  
Thermal Water ◽  
Water Jet ◽  
Power Calculation ◽  
Accident Rate ◽  
Water Jet Cutting ◽  
Working Principle ◽  
Cutting Model ◽  
Milling Equipment

Fast and economical removal of icing snow on the airport runways, road, highways and other roads is a problem for reducing traffic accident rate in frozen weather. Based on the analysis of current researches on various deicing methods, a new deicing method that combines thermal deicing method, water-jet cutting with mechanical deicing technology was presented. This context introduces the construction and working principle of this device, and milling cutting model was constructed, power calculation of milling equipment is also carried out. Subsequently, indoor experiments results was repeated. The feasibility of this scheme is validated by experiments of the compound equipment.

Studied for Mechanism of that Abrasive Water Jet Cutting Metal Materials

2014 ◽  
Vol 513-517 ◽  
pp. 218-222
Author(s):  
Zheng Long Zou ◽  
Xiong Duan ◽  
Chu Wen Guo
Keyword(s):  
Cutting Parameters ◽  
Damage Mechanism ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Deformation And Failure ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Electron Microscope Analysis ◽  
Metal Materials ◽  
Selection Of

Combining with the electron microscope analysis of the morphology of incision, the mechanism of abrasive water jet cutting metal materials was carried out to explore, for the rational selection of abrasive jet cutting parameters, to extend its application to provide the basis. Study shows that the abrasive water jet cutting metal materials, the material damage mechanism is mainly to yield deformation and failure and shear of grinding damage, grooving formation is mainly caused by falling impact deformation and furrows grinding.

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