1. design and manufacture standard

The design and manufacture of steam turbine are based on the latest standard at home and abroad with meeting the requirement of each industrial standard which including:

DL/T*******4Specification of steam turbine for power plant  

GB ********5Specification for stationary steam turbines driving generator

SH/T ********2Technical specification for special purpose steam turbines in petrochemical industry

GB/T *********2Petroleum, petrochemical and natural gas industries steam turbines—Special-purpose applications

GB/T *********2Petroleum, petrochemical and natural gas industries steam turbines—General-purpose applications

GB/T *********8Thermal turbines for industrial applications (steam turbines gas expansion turbines) - General requirements

API **2turbine for special purpose applications

2.The QNP steam turbines include high-speed & high-efficiency steam turbine, general power generating steam turbine and low temperature exhaust heat type steam turbine, and the capacity of which are mainly within **0MW. Our steam turbines are also flexible and diverse in structure and layout to meet kinds of users requirement. High quality and high efficiency is the outstanding feature of QNP steam turbine which gets an excellent prestige in the market broadly and expands the market at home and aboard. With aiming at the global equipment manufacturing enterprise, our design and R&D are higher than GB standard and equal to the international standard.

A.Gland sealing matching: the industry-leading and advanced gland sealing structure design reduces the steam leakage loss.

Blade assembling: the optimized blade molded lines are designed by the international advanced design software and processed by high-grade, high-precision and advanced technology which improve the thermal efficiency greatly.

Governing system: the advanced governing is used for high control precision and fast response speed and which also has the electronic over-speed tripfunction, load shedding trip function, as well as auto start, grid connection and on-load function.

Rotor: we have shrink-on rotor and solid forging structure rotor which are all processed by Mitsubishi Planer machine and adjusted by vacuum high speed dynamic balancing machine to make sure the vibration of each position of bearing is in good state when the steam turbine running.

Condenser: the stainless steel screwed pipe is used as heat exchange media with good anti- pollution ability and high heat-exchange efficiency. Titanium tube is used when the cooling water is seawater.

Diaphragm: we use qualitative carbon steel as the support and make the flow field comply with the design better to improve the internal efficiency via special welding technology.

Casing: the split is processed by one-step molding technology and the concentric circles of the whole axis are processed by high precision turn-milling of the *-joint axis machining center.

Lubricating oil system: the multiple filtration technology*-impurity strainer of oil tank, double bucket strainer for refined filtration, bearing inlet strainer which can be replaced during running*-make the turbine oil quality entering the bearing bush achieve the best condition.

Control and protection system: we take the Siemens microprocessor as the core of the system to ensure the stability and timeliness of signal processing. Multistage redundancy functions for important signal to achieve the safe and stable operation of equipment. Friendly interface let the operator easy to operate and monitor. More than *-month record of operating data can be saved by record system and also can be extracted at any time.

B. layout and application

single storey layout and double storey layout:

The position of oil tank for condensing steam turbine can be designed under the steam turbine as the base plate with the steam turbine, bearing pedestal and gear box on it which has same horizontal plane with condenser. The maximum capacity of this type of steam turbine can reach *4.5MW.

C. The total capacity of installed steam turbine generator units produced by QNP is over *0,**0,**0KW by now, and every set has excellent quality.

D. We would like to supply steady, highly effective and safe production products and are perfect service to customers. In addition to improve technological level, we optimize and adopt the advanced design to improve the production quality.