随着人们生活水平的提高,广大城镇和农村相继建立起自来水供水系统,以满足人们对自来水的需求。但刚刚兴建的供水系统,还多从室外集中给水栓取水。我国北方冬季寒冷、夏季炎热,解决室外集中给水栓防冻防污染是保障人们随时能取到合格水质水量的关键。为此我们设计了一种射流防冻给水栓(见图1所示)。经多年使用效果良好,从未发生管道冻裂、水质污染等事故。现介绍如下: With the improvement of people’s living standards, a large number of urban and rural areas have established tap water supply systems to meet people’s demand for tap water. However, the water supply system that has just been constructed still collects hydrant water from the outdoors. In northern China, it is cold in winter and hot in summer. Solving anti-freezing and anti-pollution of outdoor water supply sluice is the key to ensure that people can obtain qualified water quality at any time. For this reason we designed a jet antifreeze hydrant (see Figure 1). After years of good use, no accidents such as pipeline freezing and water pollution have occurred. The introduction is as follows: