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强制循环式太阳能的弊端和好处
来源:http://www.sdlntyn.com 发布时间:2017-8-15 15:18:54 浏览次数:443

1.强制循环式,济南太阳能售后服务中心热水系统用水使水在收集器与储水箱之间循环。当收集器顶端水温高于储水箱底部水温若干度时,控制装置将启动水使水流动。水入口处设有止回阀以防止夜间水由收集器逆流,引起热损失。由此种型式的热水系统的流量可得知(因来自水的流量可知),容易预测性能,亦可推算于若干时间内的加热水量。

1. forced circulation, the hot water system uses water to circulate water between the collector and the water tank. When the water temperature at the top of the collector is higher than the water temperature at the bottom of the storage tank, the control device will start the flow of water. A check valve is provided at the entrance of the water to prevent the night water from causing heat loss by the collector counter flow. The flow of this type of hot water system can be known (because of the flow of water). It is easy to predict the performance and can predict heating water in a number of times.

2.自然循环式,此种型式的储存箱置于收集器上方。水在收集器中接受太阳辐射的加热,温度上升,造成收集器及储水箱中水温不同而产生密度差,因此引起浮力,此一热虹吸现像,促使水在储水箱及收集器中自然流动。由于密度差的关系,水流量于收集器的太阳能吸收量成正比。此种型式因不需循环水,维护甚为简单,故已被广泛采用。

2. natural circulation, this type of storage tank placed above the collector. Water heating collector in solar radiation temperature rise, causing the collector and tank water temperature and have a different density difference, thus causing buoyancy, this is like a hot siphon, the water flow in the water storage tank and collector. Because of the density difference, the water flow is proportional to the solar absorption capacity of the collector. This type of maintenance is very simple because it does not need circulating water, so it has been widely adopted.

济南力诺瑞特太阳能

因此,除大型热水系统或需要较高水温的情形,才选择强制循环式,一般大多用自然循环式热水器。

Therefore, in addition to the large hot water system or the need for higher water temperature, the choice of forced circulation, mostly natural circulation water heater.

坚硬的水垢能使太阳能的热能转换率降低甚至失效。这就是太阳能热水器水温降低和供水量减少的原因。

Hard scale can make solar energy conversion rate down or even fail. This is why the water temperature of solar water heaters decreases and water supply decreases.

水垢中含有多种化学成分,长期的沉淀和积累是水中的有害物质不断增加,可能导至皮肤过敏。

Scale contains a variety of chemical components, long-term precipitation and accumulation of harmful substances in the water is increasing, may lead to skin allergies.

如在同样设计条件下,其较自然循环方式具有可以获得较高水温的长处,但因其必须利用水,故有水电力、维护(如漏水等)以及控制装置时动时停,容易损坏水等问题存在。

As in the same design condition, the natural circulation has can gain higher water temperature strengths, but because it must use water, the water power and maintenance (such as Water Leakage etc.) and the control device of dynamic stop, damage easily water problems.

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The exciting content of this article comes from Ji'nan solar energy after-sales service center. Please click on our official website: http://www.sdlntyn.com/, thank you for coming!