Due to the obvious difference between domestic units and foreign advanced units in terms of mechanical performance, electrical performance, operating performance, reliability, routine maintenance and service life, China has introduced foreign models of marine diesel engines (such as Cummins) since the 1980s. MWM, etc.), generators (such as Stanford, Siemens, etc.), air circuit breakers, and electric meters, etc. to meet the needs of the domestic shipbuilding industry.
At present, there are major problems in China's marine diesel generators:
(1) The level of scientific research, design, trial production and production of diesel generating set equipment lags behind. There is a lack of unified leadership and coordination among scientific research and production units; even some units repeatedly introduce complete sets of diesel generator set equipment for immediate benefit, resulting in duplicates. Investment causes the loss of national assets and unnecessary economic losses.
(2) Diesel generator sets have many models and are miscellaneous. The degree of standardization and serialization is low. The commonality between different products is poor, and the quality of basic parts and spare parts is poor. The integration is poor and installation and maintenance are difficult. Compared with foreign advanced gensets, the economical, dynamic, structural compactness, reliability, durability, vibration noise and other indicators of diesel engines have a wide gap; while the compactness of generators, the versatility of parts, dynamics and stability The differences in performance, reliability service life, and electromagnetic compatibility of the state regulators are also significant.
(3) Slow application of new technologies and new processes. New technologies and new processes can best improve the dynamics and economy of diesel engines, reduce vibration noise and exhaust gas content, and improve product quality and longevity, such as multi-valve air intake system, lean burn, electronically controlled injection, and increase of intercooled technologies, etc. Not only can improve the compression ratio to improve the intake air quality, reduce the intake resistance, make the combustion more fully, increase the output power of the diesel engine, reduce the fuel consumption rate, but also can improve the emission and reduce the smoke in the exhaust gas.
(4) The diesel engines and generators used in marine generators introduced in the 1980s have been digested and absorbed by enterprises, and have increased the degree of localization and increased the proportion of self-made parts, but they have neglected the basis of digestion and absorption. To improve and innovate, the product performance and quality have remained at the same level for many years. However, with the continuous development of new products and new models in foreign countries, the original imported products have lost market competitiveness.
(5) Among the electrical equipment of marine diesel generator sets, electronic and electrical components are one of the weakest links, affecting the performance and reliability of power generation, distribution, and control devices. This is a problem that should be addressed in China today. .
After-sales service I. Product quality promise of Ito:
1, the product manufacturing and testing have quality records and test data.
2. For the detection of product performance, we sincerely invite users to visit the product for the whole process and full performance inspection. After the product is confirmed to be qualified, it will be packaged and shipped.
Second, Ito product price commitments:
1. In order to ensure the high reliability and advancement of the products, the selection of materials for the system is based on domestic or international quality brand name products.
2. Under the same competitive conditions, our company will provide you with the most favorable price in good faith on the basis of not reducing the technical performance of products and changing the parts of products.
Third, Ito delivery commitments:
1, product delivery: as far as possible according to user requirements, if there are special requirements, need to be completed in advance, our company can specifically organize production, installation, and strive to meet user needs.
Fourth, Ito after-sales service commitment:
1. Service tenet: fast, decisive, accurate, considerate, thorough, 2 service goal: Service quality wins the customer satisfaction 3, service efficiency: If the equipment appears quality breakdown during the warranty period, you can go to your local maintenance point for after-sales service, Or the machine can be sent back to the company, and all costs will be borne by the company during the warranty period.
At present, there are major problems in China's marine diesel generators:
(1) The level of scientific research, design, trial production and production of diesel generating set equipment lags behind. There is a lack of unified leadership and coordination among scientific research and production units; even some units repeatedly introduce complete sets of diesel generator set equipment for immediate benefit, resulting in duplicates. Investment causes the loss of national assets and unnecessary economic losses.
(2) Diesel generator sets have many models and are miscellaneous. The degree of standardization and serialization is low. The commonality between different products is poor, and the quality of basic parts and spare parts is poor. The integration is poor and installation and maintenance are difficult. Compared with foreign advanced gensets, the economical, dynamic, structural compactness, reliability, durability, vibration noise and other indicators of diesel engines have a wide gap; while the compactness of generators, the versatility of parts, dynamics and stability The differences in performance, reliability service life, and electromagnetic compatibility of the state regulators are also significant.
(3) Slow application of new technologies and new processes. New technologies and new processes can best improve the dynamics and economy of diesel engines, reduce vibration noise and exhaust gas content, and improve product quality and longevity, such as multi-valve air intake system, lean burn, electronically controlled injection, and increase of intercooled technologies, etc. Not only can improve the compression ratio to improve the intake air quality, reduce the intake resistance, make the combustion more fully, increase the output power of the diesel engine, reduce the fuel consumption rate, but also can improve the emission and reduce the smoke in the exhaust gas.
(4) The diesel engines and generators used in marine generators introduced in the 1980s have been digested and absorbed by enterprises, and have increased the degree of localization and increased the proportion of self-made parts, but they have neglected the basis of digestion and absorption. To improve and innovate, the product performance and quality have remained at the same level for many years. However, with the continuous development of new products and new models in foreign countries, the original imported products have lost market competitiveness.
(5) Among the electrical equipment of marine diesel generator sets, electronic and electrical components are one of the weakest links, affecting the performance and reliability of power generation, distribution, and control devices. This is a problem that should be addressed in China today. .
After-sales service I. Product quality promise of Ito:
1, the product manufacturing and testing have quality records and test data.
2. For the detection of product performance, we sincerely invite users to visit the product for the whole process and full performance inspection. After the product is confirmed to be qualified, it will be packaged and shipped.
Second, Ito product price commitments:
1. In order to ensure the high reliability and advancement of the products, the selection of materials for the system is based on domestic or international quality brand name products.
2. Under the same competitive conditions, our company will provide you with the most favorable price in good faith on the basis of not reducing the technical performance of products and changing the parts of products.
Third, Ito delivery commitments:
1, product delivery: as far as possible according to user requirements, if there are special requirements, need to be completed in advance, our company can specifically organize production, installation, and strive to meet user needs.
Fourth, Ito after-sales service commitment:
1. Service tenet: fast, decisive, accurate, considerate, thorough, 2 service goal: Service quality wins the customer satisfaction 3, service efficiency: If the equipment appears quality breakdown during the warranty period, you can go to your local maintenance point for after-sales service, Or the machine can be sent back to the company, and all costs will be borne by the company during the warranty period.
Composite Casing Centraliser is the ultimate in down-hole centralisation, offering field proven lower friction coefficients leading to superior drag and rotational torque reduction. High abrasion resistant proprietary engineered polymer ensures maximum stand-off at TD. Robust enough to meet the challenges of today's most demanding wells.
Description:
- Moulded during high pressure high temperature process
- Spiral Blades 22-25° and melon shaped
- Passive Straight Blades 5° and melon shaped
- Patented Anti-Swage Rings incorporated in each end
- Generous By-Pass Area provided
- Numerous Pipe x Hole size configurations available
- Low Weight
- Premium Self-Aligning Stop Collars also available
The tools come complete with integral metal anti-swage rings inset into each end. Available in Spiral (22-25°) or Passive (5°) angle bladed configurations. Both blade styles are water-melon shaped to pass through windows, washouts and tight spots.
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Puyang Junhong Rubber Co., Ltd. , https://www.pyjhxs.com