New Type Turbo Blower Saves Energy & Stable Operation With IoT

In-pipe cleaning robots often need to carry cleaning tools, and their tails are connected with cables such as water pipes and air pipes. Especially when cleaning vertical straight pipes and curved pipes, a greater traction is required. Therefore, a new type of screw drive in-pipe cleaning robot was designed in this paper. The robot solves the problems of small traction, complex structure, and unstable motion of the in-pipe cleaning robot. The kinematics modeling was carried out on the screw drive in-pipe cleaning robot’s screw module for generating traction, and the force analysis was performed on this basis. The function model of the torque, air pressure, and traction of the screw module was established, which was verified by the simulation and experiment. The results show that the screw in-pipe cleaning robot has a large traction, stable operation, and can be well adapted to the vertical straight pipes and curved pipes.

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Hydrostatic Horizontal Cell

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.572.382 ◽

2012 ◽

Vol 572 ◽

pp. 382-389

Author(s):

Qi Weng

Keyword(s):

High Current Density ◽

Horizontal Cell ◽

Horizontal Cells ◽

Low Power Consumption ◽

Stable Operation ◽

High Current ◽

Backup Roll ◽

Coating Quality ◽

New Type ◽

Lower Frame

A new type of cell (Hydrostatic horizontal cell (HHC)) developed for continuous electroplating of strip is described. The cell consists of upper frame, lower frame, upper anode, lower anode, liquid baffle, conductive roll, backup roll, edge mask and its control system etc. The upper and lower hydrostatic cavities are located at the middle of the cell. The HHC adopts an innovative operating principle to generate strong capability of using hydrostatic pressure to grip the strip and to correct the strip twist. It thereby remarkably decreases the running space height and the deviation-from-center error of the strip in the cell. It originally builds up the horizontal spray of electrolyte to both directions at the center of the cell. Consequently the gas exhausting ability of the cell and the electroplating efficiency are improved. The cell has improved overall technical performances over conventional horizontal cells, and it is capable to effectively prevent short circuiting between the strip and the anodes. In general, the advantages of HHC include stable operation, excellent coating quality, high current density, low power consumption, and simple as well as compact equipment.

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High Stiffness Bearing

Journal of Lubrication Technology ◽

10.1115/1.3453405 ◽

1979 ◽

Vol 101 (4) ◽

pp. 520-525 ◽

Cited By ~ 12

Author(s):

Lech Brzeski ◽

Zbyszko Kazimierski

Keyword(s):

Experimental Investigation ◽

Theoretical Model ◽

General Principle ◽

Journal Bearing ◽

Stable Operation ◽

High Stiffness ◽

Bearing Load ◽

New Type ◽

Gas Journal Bearing ◽

Very High

A new type of high stiffness gas or liquid lubricated bearing is presented. The general principle and bearing configuration are explained. The theoretical model of the bearing is given for a case of gas journal bearing. Load versus displacement data were determined both theoretically and experimentally. The results obtained confirmed the very high stiffness of the bearing. The experimental investigation of the bearing demonstrated its stable operation.

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New Type Turbo Blower Saves Energy

JAPAN TAPPI JOURNAL ◽

10.2524/jtappij.71.404 ◽

2017 ◽

Vol 71 (4) ◽

pp. 404-407

Author(s):

Go Kawazu ◽

Shingo Yamamoto

Keyword(s):

Turbo Blower ◽

New Type

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Study on the Vibration Lamella Thickener and its Application in Mineral Processing Plant

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.215-216.333 ◽

2012 ◽

Vol 215-216 ◽

pp. 333-341 ◽

Cited By ~ 3

Author(s):

Xing Long Zhou ◽

Zhe Yi Long ◽

Wen Yuan Hu ◽

Xiao Ming Zhang ◽

Zhi Xin Shi ◽

...

Keyword(s):

Mechanical Vibration ◽

Research Progress ◽

Stable Operation ◽

Processing Plant ◽

Inclined Plate ◽

Plate Group ◽

Group Module ◽

New Type ◽

Sloping Plate

The development status and research progress of inclined plate sedimentation equipment, as well as the research progress of how to prevent the blockage of sedimentation channel were discussed. The main disadvantages of traditional inclined plate thickener were analyzed. A kind of new type lamella thickener which could vibrate the inclined plate was introduced. The core technologies of the vibration lamella thickener are that the inclined plate sedimentation channels are integrated and modularized, the integral sloping plate group module are suspension supported by using springs and each module mounted an independent mechanical vibration excite. By implementing an intermittent high frequency weak vibration to the sloping plate group module, the regular automatic cleaning of the surface of inclined plate was carried out, which could prevent the fine materials adhesive to the oblique plate and guarantee the settlement channel is not blocked, so as to achieve the purpose of long-term stable operation of the equipment. Vibration lamella thickener has been used in many concentrators successfully, including the classification of feed pulp, desliming and thicken of middle materials, dewatering and thickening of concentrate and tailing, and paste discharge of tailing thicken at al.. It is highly valued from clients by their good application in practical production.

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A New Type of Self-Adaptive Casing Treatment for a Centrifugal Compressor

Volume 7: Turbomachinery, Parts A, B, and C ◽

10.1115/gt2010-23457 ◽

2010 ◽

Cited By ~ 5

Author(s):

Tong Wang ◽

Wei Xu ◽

Chuangang Gu ◽

Jun Xiao

Keyword(s):

Centrifugal Compressor ◽

Pressure Ratio ◽

Centrifugal Impeller ◽

Stable Operation ◽

Stable Range ◽

Stall Margin ◽

Casing Treatment ◽

Surge Margin ◽

New Type ◽

Self Adaptive

Enhancing compressor stall and surge margin is very important for the development of turbo compressors. Casing treatment is an effective method to expand the stall margin and thus the stable operation range but it generally comes with a drop in efficiency. A new type of casing treatment with self-adaptivity for an unshrouded centrifugal impeller is presented in this paper. The idea of the self-adaptive casing treatment is to automatically control the bleeding flow rate through a set of round holes on the stationary shroud casing. When stall is approached, the casing treatment system will redirect the low-momentum fluid to improve the flow in the impeller and to extend its stable range. However, the system will not bleed or bleed a little flow when the operating point is far from the stall point. This decreases the bleeding-recirculation loss and increases the efficiency compared to bleed-slot casing treatment used before. The experimental results show that the centrifugal compressor with the new casing treatment can extend stable range by about 20% while the efficiency over the whole operating range increases by 0.2 to 1.5%. The theoretical results using CFD analyses agree with the experimental ones in the tendency for both pressure ratio and efficiency. Moreover some possible reasons for further enhancing the stable range are suggested in the paper. Based on our experiences, there should be existed a proper combination of impeller rotating speed, position and numbers of bleed port and other parameters that will maximize both surge margin range and efficiency.

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The Microstructure of Shock-Synthesized Diamond

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010006163x ◽

1967 ◽

Vol 25 ◽

pp. 324-325

Author(s):

Lucien F. Trueb

Keyword(s):

Single Crystals ◽

Preferred Orientation ◽

High Magnification ◽

Texture Pattern ◽

Shock Process ◽

New Type ◽

Diffraction Diagram

A new type of synthetic industrial diamond formed by an explosive shock process has been recently developed by the Du Pont Company. This material consists of a mixture of two basically different forms, as shown in Figure 1: relatively flat and compact aggregates of acicular crystallites, and single crystals in the form of irregular polyhedra with straight edges.Figure 2 is a high magnification micrograph typical for the fibrous aggregates; it shows that they are composed of bundles of crystallites 0.05-0.3 μ long and 0.02 μ. wide. The selected area diffraction diagram (insert in Figure 2) consists of a weak polycrystalline ring pattern and a strong texture pattern with arc reflections. The latter results from crystals having preferred orientation, which shows that in a given particle most fibrils have a similar orientation.

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New type electron gun with electrostatic and electromagnetic lenses

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100107459 ◽

1978 ◽

Vol 36 (1) ◽

pp. 62-63

Author(s):

T. Ichinokawa ◽

H. Maeda

Keyword(s):

Electron Microscopy ◽

Electron Beam ◽

Optimum Condition ◽

Bias Voltage ◽

Electron Gun ◽

Charge Effect ◽

Micro Fabrication ◽

Maximum Brightness ◽

New Type ◽

The Ideal

I. IntroductionThermionic electron gun with the Wehnelt grid is popularly used in the electron microscopy and electron beam micro-fabrication. It is well known that this gun could get the ideal brightness caluculated from the Lengumier and Richardson equations under the optimum condition. However, the design and ajustment to the optimum condition is not so easy. The gun has following properties with respect to the Wehnelt bias; (1) The maximum brightness is got only in the optimum bias. (2) In the larger bias than the optimum, the brightness decreases with increasing the bias voltage on account of the space charge effect. (3) In the smaller bias than the optimum, the brightness decreases with bias voltage on account of spreading of the cross over spot due to the aberrations of the electrostatic immersion lens.In the present experiment, a new type electron gun with the electrostatic and electromagnetic lens is designed, and its properties are examined experimentally.

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