【摘要】 现在改扩建的空调制冷和供热工程很多,实际上都有一个新建系统和原有系统相互合并兼容问题。本文以西安灞桥度假村二期扩建工程为例,就此提出三个供冷和供热系统方案,并进行经济技术比较,着重说明中央热水机组的选型和配置,确定首选方案是电制冷冷水机组和具有内置换热机组,跟原直燃机合并兼容的全年闭式供冷和供热系统。更多还原

【Abstract】 Now there are many necessary expanded air-conditioning refrigeration and heat supply project. In practical, they all have the problem of new system combined with old system. This paper proposed three cold and heat supply system in the Xian Ba bridge vacation village expansion project and made technology and economy comparison. The paper emphasizes on the The selection and scheme of central hot water units. The first scheme is full-year closed cold and heat supply system consisting of electric refrigeration unit and inner located heat exchang unit compatible with the old direct burning unit.更多还原