What is the low-temperature pressure vessels
Design temperature of -20 ℃ below the pressure vessel; liquefied ethylene, liquefied natural gas, liquid nitrogen and liquid hydrogen storage and transport of such containers are low-temperature pressure vessels. General pressure vessel ferritic steel used in the temperature decreases to a certain temperature, the toughness of the steel will decline sharply, and became very brittle, usually called the temperature of brittle transition temperature. Below the transition temperature in the pressure vessel under the conditions used, the container as there are any defects, residual stress, stress concentration factors due to high local stress, the container may not appear obvious in the case of plastic deformation and brittle fracture occurs lead to catastrophic accidents.
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Keywords: reactor，pressure vessel，heat exchanger
2011年10月13日星期四
2011年10月12日星期三
Cooling system have any effect on reactor
In the stainless steel reactor for chemical reactions, often with great heat, which is we have to take technology for cooling, and how to achieve the cooling effect, coat the stainless steel reactor with a cooling system. Chemical production is inseparable from cooling systems, such as stainless steel reactor, steam heated stainless steel reactor vessel and other cooling systems, cooling water treatment company uses technology not only can solve the production instability, low heat transfer efficiency problems, but also greatly reduce production water. The application of water treatment agent, can further improve the performance of cooling water treatment process to achieve the purpose of water stable.
This can be a stainless steel reactor experiment then to Zhongyuan Dahua ammonia plant, for example, circulating water system cycle is about 30,000 m3 / h, if the circulating water system is not functioning properly cause the device to stop, every day will stop once resulting in more than 100 million of losses.
This can be a stainless steel reactor experiment then to Zhongyuan Dahua ammonia plant, for example, circulating water system cycle is about 30,000 m3 / h, if the circulating water system is not functioning properly cause the device to stop, every day will stop once resulting in more than 100 million of losses.
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Sources from Cooling system have any effect on reactor
Keywords: reactor，pressure vessel，heat exchanger
Characteristics of Titanium Reactor
characteristics of Titanium reactor:
1, the reactor can be made of titanium corrosion experiments, titanium have been very lively, but easy to form the passive, and relatively stable passivation layer, usually with corrosive materials used in the reaction;
2, because titanium Reactor has a high specific strength, excellent heat resistance, corrosion resistance and fracture toughness, etc., so the titanium reactor in the aviation, aerospace, petrochemical, medical and geological fields was extremely popular;
3, titanium reactor also becomes more widely used in civilian areas, such as automotive, electrical, leisure and other industries. With the widespread use of titanium and its alloys, the welding performance is more and more user attention.
Sources from Weihai Huanyu Chemical Machinery Reactor Characteristics of Titanium Reactor
1, the reactor can be made of titanium corrosion experiments, titanium have been very lively, but easy to form the passive, and relatively stable passivation layer, usually with corrosive materials used in the reaction;
2, because titanium Reactor has a high specific strength, excellent heat resistance, corrosion resistance and fracture toughness, etc., so the titanium reactor in the aviation, aerospace, petrochemical, medical and geological fields was extremely popular;
3, titanium reactor also becomes more widely used in civilian areas, such as automotive, electrical, leisure and other industries. With the widespread use of titanium and its alloys, the welding performance is more and more user attention.
Sources from Weihai Huanyu Chemical Machinery Reactor Characteristics of Titanium Reactor
2011年10月10日星期一
Problem of Pressure Vessel Pipe
Problem of Pressure Vessel Pipe:
Butt joints of pressure vessels for all (100%) or partial (20%) non-destructive testing: When using radiation detection, according to its quality through not less than Class AB, the eligibility level for the grade Ⅲ, and there is no welding is not allowed permeability; when taken ultrasound, its qualified level Ⅱ.
Of GB150, GB151 and other standard requirements for all (100%) non-destructive testing pressure vessels, pressure vessels, the third category, the weld coefficient ⒈ 0 can not pressure vessels and internal and external inspection or pressure testing of pressure vessels, the butt joint for all (100%) non-destructive testing: When using radiation detection, according to its quality through not less than Class AB, the eligibility level for the grade Ⅱ; when using ultrasonic testing, its qualified level Ⅰ.
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Sources from Problem of Pressure Vessel Pipe
Expand Keywords: reactor, pressure vessels, heat exchangers
Butt joints of pressure vessels for all (100%) or partial (20%) non-destructive testing: When using radiation detection, according to its quality through not less than Class AB, the eligibility level for the grade Ⅲ, and there is no welding is not allowed permeability; when taken ultrasound, its qualified level Ⅱ.
Of GB150, GB151 and other standard requirements for all (100%) non-destructive testing pressure vessels, pressure vessels, the third category, the weld coefficient ⒈ 0 can not pressure vessels and internal and external inspection or pressure testing of pressure vessels, the butt joint for all (100%) non-destructive testing: When using radiation detection, according to its quality through not less than Class AB, the eligibility level for the grade Ⅱ; when using ultrasonic testing, its qualified level Ⅰ.
...
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Expand Keywords: reactor, pressure vessels, heat exchangers
Tips on Pressure Vessel
This article will guide you effective tips to learn Chinese for all Chinese learners.
Effective Tips for Learning Chinese
1. Learn Chinese sentences each day, just like Chinese circadian conversations, Chinese proverb. Remember, apprentice the simple and advantageous sentences, and don't apprentice the circuitous book at beginning.
2. Accept to the tapes of Chinese circadian conversations back you accept a additional time or a bisected hour, accept to some basal songs and words will advice you to body a faculty of accent in a abbreviate time. You can learn Chinese online free everyday.
3. Watching TV affairs "learning Chinese" in CCTV all-embracing approach (maybe CCTV approach 9).That approach will advice you to apprentice some simple Chinese book and advantageous conversation.
4. Talk with Chinese people in chinese, they could correct your pronunciations. Again you will advance your Chinese accentuation and chat and additionally apprentice Chinese acceptable ability better. This is a good way to learn Chinese.
...
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Sources from Weihai Universal Pressure Vessel
Expand Keywords: reactor, pressure vessels, heat exchangers
Effective Tips for Learning Chinese
1. Learn Chinese sentences each day, just like Chinese circadian conversations, Chinese proverb. Remember, apprentice the simple and advantageous sentences, and don't apprentice the circuitous book at beginning.
2. Accept to the tapes of Chinese circadian conversations back you accept a additional time or a bisected hour, accept to some basal songs and words will advice you to body a faculty of accent in a abbreviate time. You can learn Chinese online free everyday.
3. Watching TV affairs "learning Chinese" in CCTV all-embracing approach (maybe CCTV approach 9).That approach will advice you to apprentice some simple Chinese book and advantageous conversation.
4. Talk with Chinese people in chinese, they could correct your pronunciations. Again you will advance your Chinese accentuation and chat and additionally apprentice Chinese acceptable ability better. This is a good way to learn Chinese.
...
Sources from Tips on Pressure Vessel
Sources from Weihai Universal Pressure Vessel
Expand Keywords: reactor, pressure vessels, heat exchangers
2011年10月9日星期日
Introduction of Non-plate heat exchanger wall
Non-plate heat exchanger wall
For non-flat heat exchanger wall, such as flat-plate heat exchanger plate, threaded tubes and corrugated tubes, etc., interfere with the geometry of the wall heat the stratosphere liquid flow, the maximum possible flow through the wall of the turbulent fluid force and the vertical wall on the heat transfer fluid to increase the chance of erosion, will greatly reduce the boundary layer thickness. Therefore, Weihai Huanyu manufacturers to remind you when to pay attention to the use of wall heat exchanger selection and proper operation to avoid operational errors.
This article from the reactor provided by the manufacturer Weihai Huanyu
Sources from Introduction of Non-plate heat exchanger wall
Expand Keywords: pressure vessel, reactor
For non-flat heat exchanger wall, such as flat-plate heat exchanger plate, threaded tubes and corrugated tubes, etc., interfere with the geometry of the wall heat the stratosphere liquid flow, the maximum possible flow through the wall of the turbulent fluid force and the vertical wall on the heat transfer fluid to increase the chance of erosion, will greatly reduce the boundary layer thickness. Therefore, Weihai Huanyu manufacturers to remind you when to pay attention to the use of wall heat exchanger selection and proper operation to avoid operational errors.
This article from the reactor provided by the manufacturer Weihai Huanyu
Sources from Introduction of Non-plate heat exchanger wall
Expand Keywords: pressure vessel, reactor
2011年10月8日星期六
Introduction of Shell and tube heat exchanger
Shell and tube heat exchangers are composed of copper u-tubes in a carbon steel shell, are easy to clean and inspect, very durable, and are a simple solution for tube expansion. Their coil and baffle arrangement maximizes heat transfer performance. The rugged and reliable shell and tube heat exchanger is perfect for process systems where conditions and materials are often extremely corrosive and abrasive.
As a heat transfer device, it is the function of a heat exchanger to transfer heat as efficiently as possible. This makes it the ultimate device of choice, for instance, when it comes to saving energy by recovering wasted heat and making it useful again. When there is a waste of energy or a heat stream that is not recovered, a heat exchanger can covert that heat stream into something that we can use.
Sources from Introduction of Shell and tube heat exchanger
Keywords: heat exchanger, heat transfer
As a heat transfer device, it is the function of a heat exchanger to transfer heat as efficiently as possible. This makes it the ultimate device of choice, for instance, when it comes to saving energy by recovering wasted heat and making it useful again. When there is a waste of energy or a heat stream that is not recovered, a heat exchanger can covert that heat stream into something that we can use.
Sources from Introduction of Shell and tube heat exchanger
Keywords: heat exchanger, heat transfer
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