Service Scope: Steam turbine spare parts supply; steam turbine installation, inspection & overhaul, technological upgrading, turbine technology training, turbine low oil pressure renovation, turbine rotor shaft bend restoration, lower turbine`s vibration and noise, remove speed governing system abnormal volatility or load swing, solve turbine insufficient output, discontent load or other common/exceptional faults.
Contract to overhaul and all kinds of turbine`s remould, turbine dynamic balance and so on, for satisfying practical operation requirements.
Provide technical support and service for operation, inspection, maintenance, accident treatment and so on.
1. Steam Turbine Maintenance/Overhaul Service
Steam turbine normal overhaul, failure treatment; main body components repair, heat exchange tubes of cooler replacement and so on.
2. Technical guidance
Generating or Industrial driving turbine inspection, overhaul, upgrading and other items technical guidance.
3. Thermodynamic System Optimizing Services
For operating or planning projects or equipment, according to end users` actual CHP(or heat-work cooling) requirements, make cycle efficiency analysis, provide system optimizing service.
4. Speed Governing System Remould
Upgrade old hydraulic governing system to digital electro-hydraulic governing system, satisfy flexi-ble configuration all kinds of control strategy requirement.
5. Flow Passage Optimization and Modification
Total modification for steam turbine shall increase old turbine`s economic efficiency with advanced technology, service life also shall be extension.
6. Turbine Parameters Remold and Modification
Apply to processing or procedure transformation (or project site change) cause turbine operation parameters` change.
7. Uncontrolled extraction steam reconstruction
Consideration of turbine security and economic, open a hole for extraction steam normally in order to heat supply reformation.
8. Steam Turbine Engineering Service
Provide small & middle size steam turbine generator or industrial steam turbine complete set engineering, project design and project installation service.
9. Vibration Analysis and Rotor Dynamic Balance
24Hours Service for emergency vibration analysis and wide range rotor dynamic balance service at project site or back to factory.
10. Condensing (extraction condensing) type remodel to back pressure type
Condensing (extraction condensing) steam turbine remodel to Back Pressure Steam Turbine
11. Steam Turbine Vacuum System Upgrade
Condenser three-dimension design and upgrade, reduce heat-transfer temperature difference, increase steam exhaust vacuum degree, improve turbine economic efficiency. Water cooling remodel to air cooling.
12. Steam Turbine Enlargement Capacity Reconstruction
Reconstruct the turbine`s capacity which are caused by system or equipment changing.
13. Motor Speed Governing Variable-frequency Remould
Variable-frequency drive remould for pump systems of all kinds of industrial and mining enterprises.
14. Domestic Equipment Reconstruction
Domestic equipment reconstruction for imported turbine
15. Circulating Cooling Water System Optimization and Modification
Optimization and modification of operating circulating cooling water system, reduce operation energy consumption rate.
16. Waste Heat Steam Turbine Gland Seal System Upgrade
After upgrade, steam leakage ( effect gear box oil quality) shall be improved by the reason of waste heat parameters are not stable.
17. Spare Parts Marketing
Normal easily damaged parts warehouse, shorten delivery time.
Case 1
A fertilizer company has 2 sets of steam turbine, model are: CB6-3.43/1.27/0.294 and CB6-3.43/1.17/0.294. Because end user`s power load and steam consumption are changed, the turbines must be reconstructed according to steam parameters, flow change and guarantee high efficiency.
Remould Parameters: turbine max. inlet steam is 100t/h, when inlet steam is 97t/h and inlet pressure is 3.15MPa(g), its extraction steam is 62t/h extraction pressure is 1.51MPa(g), exhaust pressure is 0.21MPa(g), guarantee output is 5800KW (deviation±5% ).
Main job of remould and overhaul:
1. Casing was sent back to manufacture`s factory for rebuilding 2 valve seat hole, expand nozzle block steam passage.
2. Change nozzle block, take out guide blade carrier.
3. The original double row governing stage impeller and blade was changed to single row governing stage impeller and blade, add governing stage sheath, parts of rotor sleeve need to be changed and adjusted.
4. LP stage 3rd diaphragm steam passage inspection optimization.
5. Casing and rotor dismounting and assembling in factory with comprehensive inspection.
6. Rotor low speed dynamic balance test.
7. Governor static test in factory, overspeed test.
8. Dismount & assembly, overhaul at project site.
9. Clear incrustation for steam governing valve, nozzle and blade.
10. Gland seal inspection and replacement, gland sealing clearance adjustment, change the seal block which was severe wear, spring leaf which are damaged should be changed.
11. Every bearing repair and adjust.
12. HP & LP governing steam valve grinding, stroke adjustment.
13. Front bearing pedestal dismounting and inspection, patch oil leaking points.
14. Inspection and patching steam leaking of HP steam governing valve link rod.
15. Turbine mainbody troubleshooting.
After remolding is complete, the 2 turbine sets are running very well.
Case 2
There is a paper mill which has a set of steam turbine: B6-3.43/0.981. Due to processing consumption in workshop and load were changed, the end user request reset new back pressure and achieve the best efficiency within the shortest time.
Parameters reform to: when rated inlet flow: 55t/h, inlet pressure: 3.43±0.2MPa(a), exhaust pressure: 0.59MPa(a), steam rate guarantee value must be 11.65kg/(kw·h), output power must be 4700KW under rated working condition. The reconstruction project is a turnkey project, from preparing components to dismount heat material, equipment dismounting and installation, till to equipment commissioning successfully.
For reducing the work amount, keep casing and pipelines still, main jobs are following:
1. Change front & rear gland seal and diaphragm seal.
2. Change main shaft assembling (keep mail oil pump and coupling still).
3. Change HP nozzle block, HP guide blade carrier and original 2 stage diaphragm, add 3 stage diaphragm, 5 stage diaphragm adopts special design for satisfy the requirement.
4. Change the original 3 stage impeller and add another 3 stage impeller.
5. Steam governing valve link rod adjust inlet steam, check all butterfly valves matching conditions, improper ones should be changed.
6. Original rotor`s coupling, MOP shall be mounted in new rotor.
7. Rotor balance.
8. Change sylphon of governing system.
9. Change pressure transducer sleeve, adjust hydraulic servo-motor stroke.
10. Governor static test in factory.
11. Clear oil system.
The reconstructed steam turbine is B4.7-3.43/0.59, end user evaluates steam rate, vibration, exhaust temperature very strictly, but the reconstructed steam turbine is running very well and fully meet the design performance.
Steam Turbine Care,Steam Turbine Services Shandong Qingneng Power Co., Ltd. , https://www.steamturbine.be
If the TCL XESS awards are simply summarized, practical value and design and technological innovation are undoubtedly the most accurate keywords.
As we all know, traditional TVs require the connection of various lines in order to achieve the final viewing, because a variety of complicated wires exist, resulting in a decrease in aesthetics and safety. However, the XESS X1 is cleverly using the "Smart Cube" to achieve the storage of the back space. The design without screws and without gaps also makes cluttered wires and connectors have to go. The simple integrated design behind makes television more beautiful and has a higher safety factor.
In addition, X1 is different from traditional TVs in terms of design innovation. The traditional TV screen adopts 4000R gold curvature that is exactly the same as that of the eyeball. The X1 external Harman Kardon S-class sound is designed through the 6000R meniscus arc, which ensures that the rear shell sound chamber is flush with the rear shell surface and the curvature of the front surface is changed. Increase the volume of the sound chamber without increasing the overall thickness. The benefit of this innovation is that the TV is thinner and lighter, yet it never loses the excellent music quality of Harman Kardon Audio.
Since it is possible to win prizes, the pursuit of perfect details cannot be missed. On the X1, the ultra-narrow curled metal edges on both sides of the eco-friendly aluminum material were used, and 20,000 rpm polishing, high-brightness polishing and other processes enabled the metal strips to be warm and smooth. After anodizing, the metal edge strips were not easy to maintain. Worn and durable as new. At the same time, the 1mm drilling used for the upper frame has also become the only product in the industry that adopts a curved frame for cutting.
In addition to the commendable design, X1's technological innovation is the treasure of the industry. The most outstanding luminescent materials that humans have discovered so far, and they have applied X1 to their display materials. Up to 110% of the color space in the NTSC.1931 standard covers all colors seen by the human eye. Through the adoption of the all-organic HDR (Dolby), brilliant image quality processing engine, Galaxy multi-zone backlight technology, and multi-dimensional comprehensive image quality enhancement technology, X1 achieves a comprehensive improvement in image quality in terms of brightness, contrast, and detail processing.
The XESS Creation X1, which aims to "move life with quality and taste," was the endorsement of the Chinese women's volleyball coach Lang Ping. And this is made up of 40 designers from 6 countries including Denmark, Argentina, New Zealand, Italy, Portugal, and China. The 360-degree all-round design has long been known worldwide. The names of X1 have appeared in the CES "2016 Gold Award for Global Technology Impact of the Year", the IFA "Golden Dot Technology Gold Award", and the "Leader Technology Innovation Award" in China.
In fact, from the point of view of design innovation and industry, Xiao Bian thinks:
First, the innovation and design concept of X1 highlights the unity and practicality of the product. The application of quantum dot technology has enabled this product to achieve breakthroughs in the color of the screen and represents the highest level in the domestic TV manufacturing industry.
Second, in the past, the feeling of Chinese manufacturing for the international community was always lacking in gold content and design sense. However, the Chinese science and technology R&D strength represented by the X1 is gradually gaining fame overseas. The voice of international enterprise recognition and learning is increasingly strong.
Third, X1’s award-winning award highlights the future development of smart TVs with emphasis on quality and taste. Design and technology innovation are the foundation, and the practical value and product quality will become the final key nodes.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, etc. on TV boxes, smart TVs, smart TV software, etc. Answering questions.
For smart TV products, the appearance design and practical value will undoubtedly become the key node to measure the pros and cons of the product. There are countless design-related prizes in the world, including domestic foreign trade, and the “Canton Fair Export Product Design Contest†that symbolizes the level of export can be described as having full gold content in China. As TCL's flagship XESS brand, what is the gold medal in the electronic and electrical category? What are the benchmarks that the industry needs to learn? This is not the first time that TCL has won the award. As the relevant selection for export product design, the “Canton Fair Export Product Design Contest†has a significant bearing on the development of Chinese companies and highlighting the value of product design. It is reported that as many as 907 entries have been submitted, and only 11 works have been awarded with gold awards. Among them, TCL XESS's X1 TV won a gold medal in electrical and electronics category. On the foreign trade platform, this selection and awards have made China's industrial design go abroad and rush to the world with a strong leading role.