Search results for keyword: undp
Steel pipe injection noise control
Noise Control of Steel Pipe Blasting
Noise pollution is a growing environmental issue, causing a variety of health problems in both animals and humans. The noise from steel pipe blasting can be particularly disruptive and has been the subject of significant efforts to reduce the problem. This pap......
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Sophia
Factory Air Conditioning
Factory Air Regulation
Air regulation is a critical part of maintaining a factory environment that is healthy and efficient. The nature of factory work necessitates a controlled atmosphere in order to protect both workers and the materials they are using. Without proper regulation of the air qual......
LCM type long bag pulse dust collector
Pulse Bag Filter Dust Collector
A pulse bag filter dust collector is a type of dust collecting equipment mainly used for collecting dust in industrial fields. It is a kind of advanced dust collector which features high collection efficiency and low operating cost. By using a filtering material wit......
Effect of Bearing Structure on Vibration and Noise
Influence of Bearing Structure on Vibration and Noise
Introduction
Bearing structure plays a vital role in damping vibration and reducing noise during the operation of rotary machinery. The bearings are a component of machine tools, and the bearing performance, structure and design determine the......
GB/T 13466-92 AC Electric Drive Fans (Pumps, Compressors) - General Rules for System Economical Operation
GB/T 13466-92: General Rules for Economical Operation of AC Electrical Drive Fans (Pumps, Compressors)
1. General
This standard specifies general rules for the economical operation of AC electrical drive fans (pumps, compressors) in power systems. The purpose is to improve the energy efficiency ......
GB/T 2888-91 Fan and Roots Blower Noise Measurement Methods (3)
GB/T 2888-91 Measurement Method for Noise of Fans and Centrifugal Blowers
This standard specifies the noise measurement methods and requirements for fans and centrifugal blowers. This standard takes the A-weighted sound pressure level as the basic noise measurement index, and provides the require......
Q/12 JC××××-1998 Expanded perlite (pearlite) for cryogenic equipment
Low-Temperature Equipment and Expanded Perlite
Low-temperature equipment and materials such as refrigerators, air conditioners and chillers, often require special insulation materials to maintain a constant temperature. Expanded perlite is a unique material that is regularly used for this purpos......
Sleeve brick shape and size
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The brick is one of the oldest building materials in the world, with an estimated history of around 7,000 years. They have been used to build structures in many different parts of the world, from the Great Wall of China to the ancient city of Babylon. Bricks are versatile in shape, size and colo......
Advantages of rolling guide oil-air lubrication
Rolling Bearing Lubrication
Rolling bearing lubrication is a common industrial application that involves the use of a lubricant to keep two surfaces operating without wear and tear, while minimising the risk of damage. Lubricants provide several benefits to metal rolling bearings, including reduc......
Fracture inspection
Delirium is a mental health condition that is characterized by confusion, disorientation and perceptual disturbances and is generally caused by a major event or trauma. It may be caused by a physical illness, injury, substance abuse or a psychosocial problem and can be serious and potentially life......
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