QNP Steam Turbine------- China Top Trademark

Manufacturing steam turbine, generator <=100MW with I&Cl system, electrical panels & switchgears, spare parts and etc.

Providing 1~1000MW Overhaul & Commissioning, Energy Saving Reform and Upgrading, Operation Supervision Service for Power Plant and so on.

Brief introduction

QNP. is a manufacturing enterprise which engages in R&D, design, manufacturing, installation and service; major business includes steam turbine, generator, Power Plant EPC, efficiency upgrading, Installation & overhaul, water treatment equipment,etc. and continuously expanding the product/industrial chain, business scope is from single machine to turn-key projects.

QNP has been awarded with many honors, such as ENTERPRISE TECHNOLOGY CENTER OF SHANDONG PROVINCE, HIGH SPEED & HIGH EFFICIENCY STEAM TURBINE ENGINEERING & RESEARCH CENTER OF SHANDONG PROVINCE, and MEASUREMENT GUARANTEE QUALIFIED ENTERPRISE. In addition, QNP has passed such certificates as CE, IS09000, IS014001 and QHSAS18001.

Products and Service

QNP' s main products include steam turbines, generators, electrical control equipment, water treatment equipment and other relevant products.

QNP provides a wide range of products, include all types of steam turbines (condensing steam turbine, back pressure steam turbine, extraction condensing steam turbine, extraction back pressure steam turbine,Injection condensing steam turbine, reheat steam turbine). We focus on the promotion of the single-tier and fast-installation steam turbine, three platform and one station steam turbine, high-speed and high-efficiency steam turbine, as well as matched generators and electric control equipment.

QNP design institute has strong technical strength and complete qualification and is able to offer comprehensive power plant design solution.

QNP provides all-in-one project solutions for customers, covering design, engineering, procurement, installation and equipment debugging, which has greatly shortened the project circle and reduced the project cost for customers.

Test equipments

state-of-the-art quality test center consists of a physics lab, a chemistry lab, a chemical analysis lab, a precision measurements lab and a metrology lab. The high speed dynamic balancing test machine can test rotors at speeds up to 15000 rpm. The Steam Turbine trial platform can do load tests and performance verification tests. Other instruments such as German direct-reading spectrometer, tri-linear coordinate measuring instrument, and QNP speed test platform provide assurance of reliable product quality.

Sales and after sale service

QNP has attached great importance to the cultivation and development of market and is steadily improving its product market share. QNP distributors and products have covered many countries and regions all over the world, such as Brazil, Argentina, Russia, India, Indonesia, Pakistan, Philippines, Thailand, Cambodia, Vietnam, Iran, Myanmar, Serbia, South Korea, Bangladesh, Turkey, Ukraine, Tajikistan, Serbia and as well as such tens of African countries as Sudan, Morocco, Algeria, Democratic Republic of the Congo.

QNP has a skilled and experienced after sales team geared up for fast response and superior services to customers at any time. QNP after sales team provides tracking services to all of projects from installation to equipment debugging, and was highly praised by  customers.

The QNP steam turbines' capacity mainly covers 200MW and below, include Nl series (Normal Impulse Turbines) and HE series (High Efficiency Turbines). steam turbines are flexible and diverse in structure and layout so as to meet various requirement of users. Aiming at the global leading equipment manufacturing enterprise,  design and R&D standards are higher than GB standard and in the same league with European and American energy equipment manufacturers.

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. Small vibration of the rotor we produced is a distinctive characteristic of products

1、Characteristics of QNP Turbine

High speed, high efficiency, low energy consumption

Highly integrated three platform and one station, require smaller space

In-the-factory assembly and whole machine transportation make site installation easier, faster and more economical.

Single-tier and direct exhaust, condenser floor installation, lower construction cost

Condenser: the stainless steel screwed pipe is used as heat exchanger with good antipollution ability and high heat-exchange efficiency. High-quality titanium tube is used when the cooling water is seawater. We use digital controlled lathe for drilling hole.

Casing: the split is processed by one-off molding technology and the precision of which can be 0.0058MM without any steam leakage. The concentric circles of the whole axis are processed by high precision turn-milling of the 5-joint axis machining center.

2、Technical characteristics of parts

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

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

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.

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

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

Control and protection system: QNP uses the Siemens microprocessor as the core of the system to ensure the stability and timeliness of signal processing. For important signal, multistage redundancy functions are introduced to ensure the safe and stable operation of equipment Friendly interface makes operator wori< easily. More than 3*monthes record of operating data can be saved by recording system and also can be extracted at any time.

Steam Turbine 一Nl Series

(condensing steam turbine)

Product characteristics:

@ Maximum inlet steam pressure: 14Mpa @ Maximum inlet steam temperature:535°C 

@ Maximum capacity: 200MW

@ With a non-controlled(bleed) extraction steam outlet to meet small amount of steam demand.

@ Injection steam inlet can be added to fully utilize low quality steam (including saturated steam). 

@ Can be used for power generating or driving other equipment.

@Customized order=

Remote monitoring and diagnose service

Applicable to geothermic power generating

@ Exhaust steam can be cooling by water-cooling or air-cooling system.

Steam Turbine - Nl Series

(back pressure steam turbine)

Product characteristics:

@Maximum inlet steam pressure: 14Mpa

@Maximum inlet steam temperature: 535°C

@Maximum capacity: 100MW

@Exhaust steam can be used for heating purpose.

@Can be used for power generating or driving other equipment.

@Customized order

@ Remote monitoring and diagnose service

Steam Turbine �?HE Series

High-speed and high-efficiency steam turbine type table

Condensing steam turbine

Extraction condensing steam turbine

Back pressure steam turbine

Extraction back pressure steam turbine

Generator Technical performance analysis 

1. Output margin

The series of steam turbine generator of QNP retain 10% output margin.

2.Loss and efficiency

The steam turbine generator of QNP optimized its design and farthest minimized the additional loss and wind abrasion of generator under no-load and short-circuit condition, improved the efficiency of the generator, in general, QNP steam turbine generator's efficiency is 0.2% higher than domestic similar models in this industry. It is higher than the national efficiency standard on the same capacity level. For example: QNP 15MW steam turbine generator's efficiency value can reach 97.65%, and the national standard value is 97%.

3,Operational reliability

QNP’s steam turbine generator adopts advanced manufacturing technology, especially the rotor’s overspeed test uses high-speed dynamic balancer, the rotor’s balance precision has been greatly improved, and the rotor's vibration value is decreased. So that the steam turbine generator’s running availability factor has been improved, and the unit’s forced outage rate is decreased. At present, the availability factor of the steam turbine generator can reach about 99%, and the forced outage rate fell to 0.04% to 0.4%. Overhaul interval is up to 5 years. And the unit life can reach to 35 to 40 years.