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
 & Working material:aluminium profile, sheet material, window and curtain wall profile
 & Need 0°-135° any angel process with easy
 & Need smooth cutting surface
Sample Result Checking
Machine Details
Technical parameter
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Name
Parameter
Name
Parameter
Cutting Capacity
Square Pipe
90x90mm
Free Angle (0°-135°)
YES
Cutting Capacity
Pectangle Pipe
200x50mm
Blade Specification
Φ350x3.2x30Z=120
Spindle Rotary Speed
2800r/min
Air Pressure
0.5-0.8MPa
Input Power
2.2kw
Air Consumption
10L/min
Input Voltage
380V/415V Â 50/60HZ
Machine Body Dimension
700x900x1250mm
Weight
280kgs
Dimension(including side supporter)
6600x900x1250mm
Why LEDE have long time cooperation customers 
About LEDE
  From design engineer to workshop experience workers , keep long terms together with LEDE is our honor to have this stable and energetic team family to face each model growth process.
  35 years experience in QC system Mr.Sun Lichang set up strict every parts checking system.
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                 Practical work is the foundation
FAQ Â
Q:What's the customer service/after-sales service?
Answer:
-Details manuals we provided,will give you best machines match based on your output capacity.
-Reply within 12 hours.
-One to one service.
-Engineer available overseas,providing timely technical support,not delay construction period.
-Free training in our factory.
Q:What's the machines warranty?
Answer:
We have confidence that you maybe not contact us for maintenance one year or two years because of stability of our machines.But in machinery industry,that depends on how you use,so we also provide 2 years guarantee.
Q:What's the payment terms?
Answer:
-T/T,30% deposit,70% before shipment
-L/C,100% at sight.
For more details ,please contact with usÂ
Model NO.: LJZII-350
Air Consumption: 10L/Min
Main Body Dimension: 700*900*1250mm
Dimension: 6600*900*1250mm
Weight: 280kgs
Trademark: LEDE
Transport Package: Safe Belt Wooden Box
Specification: 0-130 degree
Origin: Jinan, Shandong
HS Code: 8465990000
Buying Guide        "From start working, strict checking and every parts keep in right size and right model can save 60% time of the following steps .This is why we do and keep doing like this ".
                                                                     --Sun Lichang
  17 years experience Assembly workers  Mr.Wang Fuxian everyday do the same work of assemble uPVC machine production line. From his assemble hand machine keep working well in customer places with stable working position although customers do not know him well.        "For most people idea, the assemble work is easy and simple work. But I do not think so. Even 0.01mm difference will effect working result. so I must do it in the correct way ! ".                                                                                                --Wang FuxianÂ