According to the requirements of the Notice of the Ministry of Construction on Printing and Distributing the Revision Plan of National Standards for Engineering Construction from 2000 to 200 1 year (Jian Biao No.87), china municipal engineering North China Design and Research Institute revised the Code for Design of Town Gas (GB50028-93) together with relevant units. In the process of revision, the compilation team conducted extensive investigation and study according to the relevant national policies and the actual situation of urban gas in China, carefully summarized the experience of urban gas engineering construction and code implementation in China in the past ten years, absorbed the advanced code achievements of developed countries in the world, carried out necessary special studies and technical discussions, and extensively solicited opinions from relevant units across the country. Finally, the Ministry of Construction and relevant departments reviewed and finalized the draft.
This specification is divided into 10 chapter and six appendices, which mainly include: general principles, terminology, gas consumption and gas quality, gas making, purification, gas transmission and distribution system, compressed natural gas supply, liquefied petroleum gas supply, liquefied natural gas supply and gas application, etc.
The main contents of this revision are:
1. Add terminology in Chapter II, change "noun explanation" into "terminology" in the original specification, and make supplements and improvements.
2. Chapter III Gas Consumption and Gas Quality, and cancel the gas consumption index for residents' life and commercial users; The calculation principle of heating gas consumption is increased. The quality requirements of natural gas, the quality and safety index of mixed gas of liquefied petroleum gas and air and the odorization standard of gas are supplemented.