Qiaonan Central Heating Project in Maiji District, Tianshui City-Rubber Joint

Tianshui, a prefecture-level city under the jurisdiction of Gansu Province, is located in the southeast of Gansu Province, adjacent to the Guanzhong Plain. It is an important node city in the Guanzhong Plain urban agglomeration and a secondary core city in the Guanzhong-Tianshui Economic Zone. Tianshui was once known as Shangjun, Chengji, and Qinzhou. It is said to be the birthplace of Fuxi and Nuwa, one of the important birthplaces of Chinese civilization, and is known as the “Hometown of Emperor Xi”. Tianshui City has 2 districts and 5 counties under its jurisdiction, with a total area of ​​14,325 square kilometers and a total population of 3.829 million, of which the permanent population is 3.3549 million (2018).
The terrain in Tianshui is high in the northwest and low in the southeast. The altitude is between 1000-2100 meters, and the climate belongs to the temperate monsoon climate. Tianshui is a famous historical and cultural city in China, an excellent tourist city in China, and one of China’s old industrial bases. It has 44 national and provincial enterprise technology centers, engineering technology research centers, 1 national enterprise key laboratory, and provincial enterprise key experiment 6 rooms. It has Tianshui Normal University, Gansu Forestry Vocational and Technical College, Gansu Industrial Vocational and Technical College, Gansu Mechanical and Electrical Vocational and Technical College and other universities. In 2018, Tianshui achieved a gross production value of 65.205 billion yuan, a general public budget revenue of 4.663 billion yuan, and a total retail sales of consumer goods of 26.981 billion yuan.
Tianshui has a long history and is the birthplace of Qin people and early Qin culture. It has more than 3,000 years of written history and more than 2,700 years of history of building a city. In 688 BC, the State of Qin established Yu County and Ji County here. The earliest place in the county. There are 169 national, provincial and municipal key protected cultural relics in the territory, including the world cultural heritage Maijishan Grottoes, one of the four largest grottoes in China, known as the “Oriental Sculpture Art Exhibition Hall”.
Introduction to central heating:
Centralized heating refers to the way in which steam and hot water produced by centralized heat sources are supplied to a city (town) or part of a region with heat required for production, heating and life through a pipe network. Central heating is one of the infrastructures of modern cities, and it is also an important facility of urban public utilities.
Centralized heating can not only provide cities with stable and reliable high-grade heat sources and improve people’s lives, but also save energy and reduce urban pollution, which is conducive to urban beautification and effective use of urban effective space. Therefore, central heating has significant economic and social benefits.
Centralized heating is an important infrastructure for building a modern city. Centralized heating can not only provide cities with stable and reliable high-grade heat sources, improve living conditions, but also save energy, reduce energy consumption, reduce urban pollution, and protect the ecological environment.
The central heating system consists of three parts: heat source, heating pipe network, and heat user. Central heating sources include cogeneration power plants, centralized boiler houses, industrial and other waste heat, geothermal, nuclear energy, solar energy, heat pumps, etc., and can also be a multi-heat source combined heating system composed of several heat sources. The heat source distribution should be concentrated and reasonable as much as possible, and the heat source equipment should be selected as high as possible with high parameters, large capacity and high efficiency. The location of the heat source should be located in the heat load center as far as possible, and determined through technical and economic comparisons according to factors such as fuel transportation, heat pipe network and power transmission line, water source, ash removal, topography, geology, hydrology, environmental protection, and comprehensive utilization. Centralized heating sources, heating power pipe networks, and heat user facilities should be planned, coordinated, and constructed simultaneously, so as to give full play to the economic and social benefits of central heating as soon as possible.