News Center

News Center

News Center

Tower: The trend of large-scale fan has been set, prompting tower technology upgrade.

Wind power tower refers to the connecting component between the wind turbine and the foundation ring. It mainly plays a supporting role in the wind turbine and absorbs the vibration of the unit at the same time. It is an important component required to realize the functions of wind turbine maintenance, power transmission and transformation. Its cost accounts for about 10% of the construction cost of onshore wind power and about 5% of the construction cost of offshore wind power.

2024-03-08

Wind turbine tower

Wind turbine tower

At present, according to the different structural forms and materials used, it is generally classified as all-steel tower (split piece), concrete-steel hybrid tower (mixed tower) and truss type. Among them, the full steel structure tower is also called flexible tower, which belongs to the main scheme of high tower at present. The whole tower is divided into 4-6 sections for transportation and installation, which can meet the transportation requirements of most sites. Because the whole steel structure has lighter weight and swings violently in strong wind season, it may resonate with the wind wheel, thus reducing the service life of the tower and increasing the accident risk. The supply of flexible tower is also easily affected by steel price, the overall price is relatively high (about 8000 yuan/t); The second type of concrete and some steel structures are called mixed towers. The main advantages of reinforced concrete towers are that they can be constructed on site, reducing the transportation cost and the overall tower cost. The concrete part is formed by prefabricated formwork at one time, with relatively long construction period and high installation cost. The overlapping part of concrete and steel structure is also easy to form weak points to absorb stress, if the concrete part is not painted, the overall shape is not as beautiful as the flexible tower, and there will be some problems in dismantling and recycling after the service period expires. The bottom of the truss tower fan structure is based on trusses, with high structural rigidity and high bearing capacity, which can effectively avoid resonance, is about 20% lighter than the traditional steel tower, and effectively reduces the volume and weight of transportation. There are some pilot projects at sea and on land, at present, the market share is still relatively small.

2024-03-05

Safety Operation Regulations for Crane

Safety Operation Regulations for Crane

Before use, five principles should be followed: one to wear, two to wear, three to choose, four to check, five to try.

2024-02-21

Corrosion Hazard Analysis of Fire-fighting Pipeline in Large Storage Tank

Corrosion Hazard Analysis of Fire-fighting Pipeline in Large Storage Tank

Fire protection system is the last barrier to reduce the risk of large storage tanks. According to the characteristics of large storage tank fire protection system, this paper analyzes the corrosion hazards of fire protection pipelines. Its corrosion types mainly include chemical corrosion

2024-02-08

Crane basic maintenance must know!

Crane basic maintenance must know!

Truck crane (crane) belongs to the characteristics of both construction machinery and road machinery, because of its own complexity, so only daily good maintenance, maintenance can prolong the service life of equipment, reduce the failure rate, in order to improve the reliability and economy of equipment. However, many users in the industry, and even old users with many years of experience, do not pay enough attention to this, which not only causes the equipment failure rate to rise, increases the total maintenance cost, but also reduces the equipment attendance rate, and even delays the construction period, resulting in certain economic losses.

2024-01-17

The company is adjacent to Jiangsu Dajin Heavy Industry, and is also a subsidiary of Jiahao. It shares resources in equipment, production, technology, management and other aspects.

The company is adjacent to Jiangsu Dajin Heavy Industry, and is also a subsidiary of Jiahao. It shares resources in equipment, production, technology, management and other aspects.

The company covers an area of more than 270 mu, with an existing production workshop of more than 10000 square meters, with a maximum lifting capacity of 64 tons, and a 350-meter outfitting wharf with a lifting capacity of 280 tons. It has all kinds of professional production equipment: 2 sets of large-scale trigger winding circle with maximum thickness of 140mm and 70mm, more than 30 sets of roller frames of 100T-200T, 6 sets of double-wire submerged arc welding machines, and more than 40 sets of various welding machines. The company has a professional technical, process, production, quality control team. The company is adjacent to Jiangsu Dajin Heavy Industry and is a subsidiary of Jiahao. It shares resources and cooperates closely in equipment, production, technology, management and other aspects. The company's terminal can directly undertake import and export business to facilitate foreign trade.

2021-12-21

Camry successfully passed the 2020 quality, occupational health and safety management system certification supervision and audit.

Camry successfully passed the 2020 quality, occupational health and safety management system certification supervision and audit.

From May 22 to 23, 2020, a group of 3 experts from China Classification Society Nanjing Branch Certification Company conducted a 2-day quality, occupational health and safety management system replacement and standard replacement supervision and audit of our company. The audit team revised the original quality, occupational health and safety management manual of the company in accordance with CB/T19001-2016 idt ISO9001:2015 "Requirements for Quality Management System" and GB/T45001-2020 idt ISO45001:2018 "Occupational Health and Safety Management System" and relevant national laws and regulations. The original 3.0 edition of the company's quality, occupational health and safety management manual was revised to 3.1 edition in accordance with GB/T45001-2020 this time, to confirm the continuous and effective operation of the quality, occupational health and safety management system established and implemented by the company. The expert group conducted a detailed review of the company and various departments on the operation of the system within their respective responsibilities, and conducted a strict review of our company through review methods such as document records, on-site inspections, and inquiries of various departments. After the audit, the audit expert group believes that the company has made effective achievements in quality, occupational health and safety and has given full affirmation. The leaders of various management departments attach great importance to the operation of the quality, occupational health and safety system. At the same time, the audit team also put forward opinions and rectification suggestions on the company's timely detection of factors in the workplace and deficiencies in process records, I hope the company will continue to improve the quality, occupational health and safety management level in the future work, and escort the smooth development of the company's various tasks.

2020-06-10

Jiamei Company successfully signed the production and installation contract for 600T jack-up wind power installation and maintenance platform pile legs and other related projects.

Jiamei Company successfully signed the production and installation contract for 600T jack-up wind power installation and maintenance platform pile legs and other related projects.

Following the successful delivery of Jiamei in 2019, Jiangsu Dayang Equipment Co., Ltd. 600T jack-up wind power installation and maintenance platform pin-type pile leg production and installation, May 22, 2020 and Jiangsu Dayang Equipment Co., Ltd. signed a contract with 2 sets of 600T jack-up wind power installation and maintenance platform pile leg project production and installation. The pile leg is 3.8 meters in diameter and 91 meters in length, totaling four, with a gross tonnage of 2500 tons.

2020-06-09

The lifting and commissioning of the DJHC8017 exploration platform of Dajin Heavy Industry undertaken by our company was successfully completed at the second phase outfitting terminal.

The lifting and commissioning of the DJHC8017 exploration platform of Dajin Heavy Industry undertaken by our company was successfully completed at the second phase outfitting terminal.

On November 27, 2017, the lifting and debugging of the DJHC8017 exploration platform of Dajin Heavy Industry undertaken by our company was successfully completed at the second phase outfitting wharf. Our company started blanking and rolling the pile leg in May 2017, closed it in August, connected the pile underwater in November and completed the lifting and debugging. The pile leg is a rack-type cylindrical pile leg with a plate thickness of 38-58mm, a pile leg specification of 1.85*56, an ellipticity of any section ≤ 4mm, a straightness of 12 meters ≤ 5mm, and a pile leg material of EH36 A514, which is entered into CCS classification society.

2017-11-28