Hangzhou Steam Turbine Co., Ltd. Holding Company

Zhejiang Steam Turbine Complete Technology Development Co., Ltd., invested and established by Hangzhou Steam Turbine Co., Ltd., is mainly engaged in the research, development, operation and technical transformation of complete steam turbine equipment, as well as the design, development and manufacture of steam turbine automation instruments. Employees with senior titles account for 77% of the company's total employees, and have a high level of scientific and technological development and rich experience in on-site installation and debugging.

The company not only undertakes the design, manufacture and supporting services of steam turbine instrumentation and automation system of Hangzhou Steam Turbine Co., Ltd., but also undertakes the technical transformation of steam turbines at home and abroad, such as the transformation of steam, water and oil systems, the transformation of electronic governor and the transformation of steam turbine output. After the transformation, the safety and economy of the unit will be greatly improved, and the operation management and equipment maintenance of the unit will be simpler and more convenient, so that users can generate greater economic and social benefits with less investment. At the same time, the company also undertakes the design and production of other peripheral products related to steam turbines. Hangzhou Steam Turbine Casting and Forging Co., Ltd. is a joint-stock enterprise with independent legal personality. It mainly provides various cast steel and iron castings for Hangzhou Steam Turbine Co., Ltd., and also provides some cast steel and iron castings for Fuji Electric, Kawasaki Heavy Industries, Mitsubishi Heavy Industries, Xinbilong, Shanghai Desailian Compressor Co., Ltd. and Shanghai KSB Co., Ltd.

Our products passed the IS09000 quality assurance system certification in 1994, and passed the 2000 edition replacement certificate in 200 1. Based on the tenet of "quality first, reputation first, customer first", the company wholeheartedly provides high-quality castings for domestic and foreign customers with its strong strength. Hangzhou Steam Turbine Auxiliary Equipment Co., Ltd. is a professional entity holding by Hangzhou Steam Turbine Co., Ltd. engaged in the distribution, development, technology and manufacturing integration of power stations, industrial steam turbines, auxiliary systems and non-standard mechanical equipment.

The company has strong technical force and strong processing ability. It adopts advanced technology and design criteria of Siemens, computer production management system and design calculation technology of developing and applying auxiliary equipment CAD of steam turbine. The product quality conforms to the Ministry standard, national standard, international general standard API, HEI, NEMA, TEMA, DIN, ASME and the special technical specifications of users, so as to ensure that the design and manufacture of steam turbine auxiliary equipment can meet the different needs of customers.

With excellent design, exquisite technology, serious manufacturing, abiding by contracts and satisfactory service as its purpose, the company has won the trust of our customers. Gas turbine is a turbine product developed for burning clean fuels such as natural gas, liquefied natural gas and light oil. Due to the lack of energy in Japan, which is heavily dependent on imports, Mitsubishi Heavy Industries and Nippon Steel Corporation began to develop blast furnace gas turbine and its combined cycle power plant in the late 1970s to meet the demand of Japanese steel enterprises for effective energy utilization.

At the beginning of 2004, Hangzhou Steam Turbine Co., Ltd. (HTC) focused on the company's long-term development plan. After careful investigation and analysis, it decided to cooperate with Mitsubishi Corporation (MHI) in the field of gas turbines. By introducing Mitsubishi's gas turbine production technology, the coverage of the company's products has been expanded and it has entered a higher-end turbine market.

Through the joint efforts of both parties, HTC and MHI jointly obtained the first gas turbine project in February 2005-two 50MW M25 1S blast furnace gas combined cycle units in Hebei Hangang.

M25 1S blast furnace gas combined cycle power generation unit (CCPP) can fully reflect the efficient use of resources, clean and environmental protection, provide users with convenient thermoelectric demand, and provide a solid foundation for the sustainable development of steel plants. Especially in solving the pollution problem caused by a large number of blast furnace gas emissions, the most ideal solution has been played, and the gas emissions are zero, which makes the utilization of by-product gas in iron and steel plants more reasonable and efficient, and also provides a lot of electric energy and heat energy for iron and steel plants.

The combined cycle efficiency of M25 1S blast furnace gas is more than 38%, which is 1.5-2 times that of conventional boilers. For iron and steel enterprises, CCPP makes efficient use of blast furnace gas, hardly needs other fuels for combustion, fully meets the national environmental protection requirements, conforms to the energy policy, and is conducive to energy conservation and emission reduction.

At the same time, the investment payback period of combined cycle units is fast (3~5 years). The CCPP power of M25 1S gas turbine is 50MW, the annual power generation can reach 400 million kWh, and the total revenue can reach nearly 200 million RMB, which brings considerable economic benefits to enterprises.

M25 1S combined cycle thermal power plant of blast furnace gas is an energy-saving and environmental protection project strongly advocated by the state, and it is also the main development direction of waste heat utilization in iron and steel enterprises in the future. The condensing steam turbine designed by our company is a single cylinder and single shaft impact turbine. Steam turbines below 3000KW are equipped with gear reducers, and steam turbines above 6000KW are directly connected to the engine.

In order to meet the needs of winter heating in northern cold areas, our company can provide users with low vacuum circulating water heating dual-purpose steam turbines (pure power generation in summer), thus improving the economic benefits of small and medium-sized power stations.

Our company can also provide non-regulated condensing steam turbines to extract a certain amount of steam for industrial use and expand the use of condensing steam turbines.

This series of units consists of rotor and stator. The rotor adopts sleeve structure, and the stator includes cylinder, nozzle and baffle, labyrinth seal, bearing and other parts. The lifting plate regulating steam valve and mechanical lever are connected with the oil motor of the speed regulating system.

The condensing steam turbines developed by our company all adopt full hydraulic regulating system and are equipped with safety devices with different functions. The back pressure steam turbine designed by our factory is a horizontal bar impact steam turbine with gear reducer.

The steam turbine adopts full hydraulic regulating system and is equipped with safety devices with different functions. Piezoelectric adjusting device can also be configured according to user's needs. The catalogue also includes some multi-stage back-pressure turbines under development. NK and HNK condensing steam turbines designed with imported technology are based on the principle of building block design. The steam turbine is mainly composed of three sections, each section has several geometric dimensions according to the common ratio, and the flow passage is optimized by computer.

NK type-the applicable maximum intake parameter is 10Mpa/480℃

HNK type-the applicable maximum intake parameter is 14Mpa/540℃.

The steam turbine adopts single cylinder and single shaft reaction type, and the steam turbine is equipped with gear reducer. When the current section size is greater than 50, the steam turbine can be directly connected with the generator.

This series of units can be designed according to the series of hydraulic turbine parameters specified in the national standard (GB) (called standard type) or according to the non-standard parameters provided by users (called non-standard type). The steam turbine can also be equipped with non-adjustable steam extraction port according to the needs of users to extract a certain amount of steam for industrial use.

This series of units consists of rotor and stator. The rotor adopts integral forging, the regulating stage is impulse blade, the pressure stage blade mounted on the drum rotor is reactive cascade, the last stage is twisted blade with fork blade root, and the rotor is equipped with balance piston. Stator includes outer cylinder (composed of front section, middle section and exhaust section), steam chamber, guide vane ring, labyrinth embedded seal, bearing and other components. The regulating steam valve of the lifting plate is connected with the oil motor through a mechanical lever.

The regulating system is fully hydraulic and consists of a series of standard components. Select functions according to users' needs, and provide security monitoring equipment with different functions. ENK multi-stage extraction condensing steam turbine designed with imported technology is formed by adding one or two stages of regulating extraction on the basis of NK and HNK.

ENK type-the applicable maximum intake parameter is 10Mpa/480℃. The applicable maximum extraction pressure is 4.5Mpa.

EHNK type-the applicable maximum intake parameter is 140Mpa/540℃. The applicable maximum extraction pressure is 4.5Mpa.

The regulating system adopted by this series of units consists of a series of standard units, and the automatic regulation of extraction pressure is completed by converting extraction pressure into electric or pneumatic quantity, and then a series of regulating elements such as electric or pneumatic regulators. The unit is also equipped with safety monitoring equipment with different functions. NG, HNG and HG multistage back-pressure steam turbines designed with imported technology are based on the principle of building block design. The steam turbine is mainly composed of three sections, each section has several geometric dimensions according to the common ratio, and the flow passage is optimized by computer.

NG type-the applicable maximum steam inlet parameter is 10Mpa/5 10℃, and the applicable maximum gas outlet pressure is 2Mpa.

HNG type-the applicable maximum intake parameter is 14Mpa/540℃, and the applicable maximum exhaust pressure is 2Mpa.

HG type-the applicable maximum steam inlet parameter is 14Mpa/540℃, and the applicable maximum outlet pressure is 4.5Mpa.

The steam turbine adopts axial flow and single shaft reaction type, and the steam turbine is equipped with gear reducer. When the current section size is greater than 50, the steam turbine can be directly connected with the generator.

This series of units consists of rotor and stator. The rotor adopts integral forging, the regulating stage is pulse blades, the reaction blades installed on the drum rotor are all reaction cascades, and the rotor is equipped with a balance piston.

Stator includes outer cylinder (composed of front section, middle section and exhaust section), steam chamber (for NG and HNG type) or integral inner cylinder (for HG type), guide vane ring, labyrinth embedded steam seal, bearing and other parts. The regulating steam valve of the lifting plate is connected with the oil motor through a mechanical lever.

The regulating system is fully hydraulic and consists of a series of standard components. Select functions according to users' needs, and provide security monitoring equipment with different functions.

The advantage of back pressure turbine is high efficiency. ENG and EHNG multi-stage extraction back-pressure steam turbines designed with imported technology are composed of one or two stages of regulating extraction on the basis of NG and HNG.

Engineering type

The applicable maximum admission parameter is 10Mpa/480℃

The applicable maximum extraction pressure is 4.5Mpa.

The maximum applicable exhaust pressure is 2Mpa.

EHNG type

The applicable maximum admission parameter is 14Mpa/540℃.

The applicable maximum extraction pressure is 4.5Mpa.

The maximum applicable exhaust pressure is 2Mpa.

The regulating system used in this series of units consists of a series of standard devices. The automatic adjustment of extraction pressure or exhaust pressure is accomplished by converting extraction pressure or exhaust pressure into electrical or pneumatic quantity, and then through the action of a series of adjusting elements such as electrical or pneumatic adjusting gas. The unit is also equipped with safety monitoring equipment with different functions.