CJJ/T 34-2022 Design standard for urban heating network

Scope

1.0.1 In order to save energy, protect the environment, develop China's urban central heating industry, and improve the design level of central heating projects to ensure they are technologically advanced, economically reasonable, and safe and practical, this standard is formulated. 1.0.2 This standard applies to the design of new, expanded, or renovated urban heating networks where the design pressure is less than or equal to 2.5 MPa, the design temperature of hot water is less than or equal to 200°C, and the design temperature of steam is less than or equal to 350°C from the heat source outlet to the building heat inlet. 1.0.3 The design of urban heating networks should comply with the requirements of urban planning and township planning, and should be in harmony with the environment. 1.0.4 When designing urban heating networks in areas such as earthquake zones, collapsible loess, expansive soils, and saline soils, in addition to meeting the requirements of this standard, they should also comply with the current national standards: *Seismic Design Code for Outdoor Water Supply, Drainage, and Gas and Heat Engineering* GB 50032, *Building Standards for Collapsible Loess Areas* GB 50025, *Technical Code for Buildings in Expansive Soil Areas* GB 50112, and *Technical Code for Buildings in Saline Soil Areas* GB/T 50942. 1.0.5 The design of urban heating networks should also comply with the provisions of relevant current national standards in addition to meeting the requirements of this standard.

Development Information

Replace the following standards

Related Standards