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(Daily Question) Coal-to-oil and olefins forum, 2018.2.15

2018-02-16View Original

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3.jpg Participation: Prize of 5 Wealth; Correct answer: Reward of 10 wealth points ; Note: This post is valid for 48 hours. Question: (DMTO) Olefin separation unit: What are the characteristics of the screw pumps in the turbine lubricating oil system? As the screw rotates, the liquid moves in a relatively linear path along the spaces between the screw teeth, and this movement is continuous; as a result, the liquid discharged from the screw teeth is more uniform than that from gear pumps, with lower pressure fluctuations ; It has good thread sealing performance and a strong self-priming ability ; The groove space of the screw is large, so a small amount of impurity particles in the liquid will not hinder operation ; The driving screw is subjected only to torsional torque, with no radial or axial forces; the driven screw is subjected only to lateral radial forces, without any torsional torque. Note: The answers will be announced automatically in two days!
Reply #22018-02-16
Answer: As the screw rotates, the liquid moves in a relatively linear path along the spaces between the screw teeth, and this movement is continuous; as a result, the liquid discharged from the screw teeth is more uniform than that from gear pumps, with lower pressure fluctuations; It has good thread sealing performance and a strong self-priming ability ; The groove space of the screw is large, so a small amount of impurity particles in the liquid will not hinder operation ; The driving screw is subjected only to torsional torque, with no radial or axial forces; the driven screw is subjected only to lateral radial forces, without any torsional torque.
Reply #32018-02-16
Its feature is the ability to transport fluids with high viscosity
Reply #42018-02-16
It is characterized by stable flow, low pressure pulsation, self-priming capability, low noise, high efficiency, long service life, and reliable operation; Its prominent advantage is that it does not generate vortices when transporting the medium, is insensitive to the viscosity of the medium, and can transport high-viscosity media.
Reply #52018-02-17
As the screw rotates, the liquid moves in a relatively linear path along the spaces between the screw teeth, and this movement is continuous; as a result, the liquid discharged from the screw teeth is more uniform than that from gear pumps, with lower pressure fluctuations; It has good thread sealing performance and a strong self-priming ability ; The groove space of the screw is large, so a small amount of impurity particles in the liquid will not hinder operation ; The driving screw is subjected only to torsional torque, with no radial or axial forces; the driven screw is subjected only to lateral radial forces, without any torsional torque
Reply #62018-02-17
Features of screw pumps: they ensure a steady transfer of the medium, result in low turbulence when discharging the medium, have minimal pressure fluctuations, exhibit low mechanical vibration, and generate low noise. It has self-priming capability; screw pumps are characterized by good priming performance, and they can operate at high speeds ; Screw pumps feature insensitivity to the viscosity of the medium, a simple and compact structure, small external dimensions, low weight, high efficiency, reliable operation, a long service life, as well as ease of operation and maintenance.
Reply #72018-02-17
Screw pumps feature insensitivity to the viscosity of the medium, a simple and compact structure, small external dimensions, low weight, high efficiency, reliable operation, a long service life, as well as ease of operation and maintenance
Reply #82018-02-17
Screw pumps feature insensitivity to the viscosity of the medium, a simple and compact structure, small external dimensions, low weight, high efficiency, reliable operation, a long service life, as well as ease of operation and maintenance
Reply #92018-02-17
Screw pumps feature insensitivity to the viscosity of the medium, a simple and compact structure, small external dimensions, low weight, high efficiency, reliable operation, a long service life, as well as ease of operation and maintenance
Reply #102018-02-17
Answer: As the screw rotates, the liquid moves in a relatively linear path along the spaces between the screw teeth, and this movement is continuous; as a result, the liquid discharged from the screw teeth is more uniform than that from gear pumps, with lower pressure fluctuations; It has good thread sealing performance and a strong self-priming ability ; The groove space of the screw is large, so a small amount of impurity particles in the liquid will not hinder operation ; The driving screw is subjected only to torsional torque, with no radial or axial forces; the driven screw is subjected only to lateral radial forces, without any torsional torque.
Reply #112018-02-17
Screw pumps feature insensitivity to the viscosity of the medium, a simple and compact structure, small external dimensions, low weight, high efficiency, reliable operation, a long service life, as well as ease of operation and maintenance

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