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概述 供热管道直埋技术,是当前世界技术发达国家在集中供热管道的设计与施工中采用的一种先进技术。预制保温管是实现直埋技术的一种行之有效的新型的管道。它具有保温性能好、占地面积少、施工进度快、耐用年限长、工程造价低,以及可减少或避免与其他地下管线交叉碰撞等优点。推广和使用预制保温管,将会极大的提高热力管道施工的标准化、工厂化和装配化的程度,对我国城市集中供热事业的发展具有十分重要的意义。 哈尔滨市热力公司于一九八四年十一月八日同丹麦I.C.摩勒公司签定了购买十公里预制保温管的合同,根据合同规定,一九八五年三月二十三日至四月二十三日我同其他
Overview The direct burial technology of heating pipelines is an advanced technology adopted by the developed countries in the design and construction of centralized heating pipelines. Prefabricated insulation pipe is an effective new type of pipe that realizes direct burial technology. It has the advantages of good thermal insulation performance, small footprint, quick construction progress, long service life, low construction cost, and the ability to reduce or avoid cross-collision with other underground pipelines. The promotion and use of prefabricated insulation pipes will greatly improve the standardization, factoryization and assembly of thermal power pipe construction, which is of great significance to the development of urban centralized heating in China. On November 8, 1984, Harbin Thermal Power Company entered into a contract with Danish IC Moller to purchase ten kilometers of prefabricated thermal insulation pipe, according to the contract, from March 23, 1985 to April 4th, 1985. I am on the 23rd with other