农村“煤改电”空气源热泵供暖小常识(5)
发布时间：2018.04.19
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; -webkit-tap-highlight-color: transparent; font-weight: 700;">13、闭式系统和开式系统</span></span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">（1）闭式系统</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">就是循环管路中的水在循环过程中始终不与大气接触，在系统上设膨胀罐；也可在系统最高点设膨胀水箱，当系统水加热时体积会膨胀，致使系统可能会爆炸，因此，设膨胀罐或是设膨胀水箱，使系统胀出来的热水挤进膨胀罐或膨胀水箱中，所有的闭式供暖系统中都需要安装相应的设备(膨胀罐或膨胀水箱)容纳水在加热时增大的体积。空气源热泵供暖系统中，通过安装膨胀罐或膨胀水箱来容纳加热时的膨胀水量，同时还具有恒定系统压力的作用。</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">（2）开式系统</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">开式系统也称为无压系统，也就是供热系统循环管路中的循环水，在流经某个位置时与大气接触，如开口的蓄热水箱及膨胀水箱等。膨胀水箱不但能补偿系统热水加热时膨胀的体积，还能兼作开式系统起到补水作用。</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">（3）闭式与开式系统优缺点</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">开式系统与大气连通，系统水质易污染；系统水进入空气增加含氧量，系统水中含氧量过高容易对末端散热器内壁产生腐蚀；另外，开式系统配置的循环泵比闭式系统配置的循环泵扬程要大，相对来说开式系统配置的循环泵的电机用电量比闭式系统配置的循环泵的电机用电量要大，开式系统比闭式系统年运行费用要高。</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;"><span style="margin: 0px; padding: 0px; max-width: 100%; box-sizing: border-box; word-wrap: break-word !important; -webkit-tap-highlight-color: transparent; font-weight: 700;">14、主要热泵品牌产品介绍</span></span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">目前根据国标得知：低温空气源热泵侧重于热泵采暖；风冷冷水（热泵）机组侧重于制冷，作用相当于空调；空气源热泵热水机侧重于提供生活热水，从以上三种不同的产品不难区别它们使用的功能。但是，要知道生产以上产品的厂家就非常难以分清了。</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">空气源热泵品牌和厂商主要有两类，一类是专门从事热泵研发与制造的厂商；另一类是传统空调设备厂家。目前，综合以上两类空气源热泵品牌已经超过300家。</span></span></p>
<p style="margin: 16px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; font-size: 16px; line-height: 25.6px; widows: 1; -webkit-tap-highlight-color: transparent; word-wrap: break-word !important;"><span style="font-family:宋体;"><span style="font-size:16px;">除此之外，空气源热泵热水机与空气源热泵供暖及制冷有很大的差别。
