Analysis of Structure and Design of Scroll Compressor

It has been proposed nearly a hundred years ago, but it has only developed into industrial products that can be produced in high efficiency and in large quantities in the past three decades. From the beginning of the development of the scroll compressor, its development direction has been determined. That is, in the direction of improving energy efficiency and improving noise characteristics. Product reliability is also an important design criterion, especially for the allowable limits of liquid refrigerants and for system contamination and wear. These parameters form the basis for the development of scroll compressor products with excellent operating characteristics and reliability.

From the point of view of mechanical and heat transfer, the scroll compressor has the following advantages: the sliding speed of all contact points in the scroll compressor mechanism is low, which makes it possible to achieve sealing by direct contact. No oil is required as a sealant. This contact eliminates the presence of a gap, thereby reducing the leakage to an absolute minimum. Another feature of scroll compressors is that the gas flows uniformly to the center so that flow losses and heat transfer from high to low temperatures are minimized. The slow, multi-chamber compression process also reduces the airflow rate. In addition, the use of an intake and exhaust valve member can reduce power loss and eliminate the sudden flow of the compressor that uses the valve member. The inherent noise and vibration of the scroll compressor are low. The source of noise is relatively independent of gas fluctuations and increases with an irregular mechanical shock primarily from the contact surface of the scroll blades. Therefore, the blade profile is required to have high mechanical precision and surface finish quality to reduce noise. The vibration control is mainly to determine the balance block size to provide a dynamic balance for the mass of the moving scroll. The low number of moving parts, combined with the absence of dynamic valve parts, provides high product reliability, especially in terms of the allowable limits of liquid refrigerants. For unit air conditioning systems, temporary liquid backflow during liquid refrigerant migration and start-up during shutdown periods can result in very high pressure loads on the compressor mechanical system and cause compressor damage.

The optimum point of the scroll compressor can be designed on the pressure ratio, and the isentropic efficiency in a certain range is significantly higher than that of the piston compressor. Similarly, scroll compressors operate at higher efficiency than rotor compressors because of less leakage of compressed gas and less loss of fluid flow resistance. The scroll compressor has no suction and exhaust valves, the fluid flow resistance loss is minimized, and because the fully flexible fit, the scroll can be separated when the pressure is too high, which is an important cause of damage to the compressor. When liquid refrigerant hits, it can withstand the high stress generated by the liquid hammer process. The challenges faced by piston and rotor compressors in dealing with similar situations are much greater.

relevant information

  • 2017/10/20 Optimized design of compressed air supply system for mine refuge chamber
  • 2017/10/20Drilling rod inner coating production line compressed air system transformation
  • Feasibility study of 2017/10/20 compressed aerodynamic vehicle
  • 2017/10/19Use of compressed air system for automobile painting production line
  • 2017/10/19 Process Optimization and Energy Saving Reform of Cold Rolled Compressed Air System
  • 2017/10/19 compressed air powered car

Reviews

0 comments
to register
Function Dcheck() { if(Dd('username').value == '') { confirm('Please enter the login name'); Dd('username').focus(); return false; } if(Dd( 'password').value == '') { confirm('Please enter a password'); Dd('password').focus(); return false; } } show_newscomment('http:// Extend/', 21, 2943);

Popular information

  • This week
  • this month
    1. 1 Haier COSMOPlat unveiled the soft blog to fully deploy the industrial Internet
    2. 2 GE technology to provide variable speed pumped storage power station in the world's largest
    3. 3 Ankaite won the contract for Norway's 35km high voltage cable
    4. 4 US SJI Energy Services Company Stripped Solar Business Goldman Sachs
    5. 5 Siemens and China National Power Investment Cooperation Agreement signed gas turbine
    6. 6 FANUC and Guangdong Fuhua Heavy Industry signed a strategic cooperation agreement
    7. 7 People's Electric Appliances and Wenzhou University Business School hold a strategic cooperation cooperation signing
    8. 8 Intelligent Manufacturing promote the transformation and upgrading of China's manufacturing industry
    9. 9 service robots, the first Cobos built artificial intelligence research institute, to be more intelligent
    10. 10 NARI National Laboratory in 2018, re-open to the public activities

    Photo News

    • Domestic inverter compressor
    • China's air compressor industry
    • Air separation unit supporting pressure
    • Slide air compressor
    • Shanghai Jaguar 0.25-8
    • Garbage crusher
    $(function(){ /** * Hot Info Switch*/ $('.hot-news .tab-trigger').switchable('.hot-news .tab-pannel', { triggers: 'li', currentCls : 'tab-current', triggerType: 'mouse' }).carousel(); })
    • about us
    • |
    • Website announcement
    • |
    • Contact information
    • |
    • Advertising Services
    • |
    • Member Points
    • |
    • Website message
    • |
    • Links
    • |
    • Terms of Service
    • |
    • Copyright Notice
    • |

    customer service hotline: (Monday to Saturday 8:00-17:30) Business Consulting Line: online service: Miss ZhangMiss Zhang

    Website technical support: Exhibition / Business Cooperation: Media cooperation / link: Complaint / Administration Department: Fax:

    (c)2005-2016 China Air Compressor Network All Rights Reserved Copyright China Air Compressor Network 鲁ICP备15028611号-22

    Lugong Network Security Equipment No. 37030402000310
    Show_task('');
    Online customer service system

    We are specialized manufacturer of Double Needle  Sewing Machine in China.  Features for Double Needle Lockstitch Sewing Machine: User -Friendly Operation Panel; Clean Sewing with No Oil Staining; Feed Method Can Be Switched To Suit The Sewing Application; Excellent Material Compatibility; Easy Gauge Part Replacement; Enhanced Sewing Quality and Environment-Counsious. With new developed motor and control box , high -valued twin needle lockstitch by its direct drive method and dry head mechanism realized higher energy saving and reliability. It brings you comfortable and clean sewing. 

    Double Needle Sewing Machine

    Double Needle Sewing Machine,Industrial Double Needle Sewing Machine,Double Needle Long Arm Sewing Machine,High Performance Double Needle Sewing Machine

    DONGGUAN CHUANGHUI SEWING MACHINE CO.,LTD , http://www.ch-sewing.com

    This entry was posted in on