1、過熱水裝置工作原理Working principle
a.傳統的加熱工藝Traditional heating processing
鍋爐供汽電廠蒸汽 Boiler supplied power plant steam
熱 壓 機Heat compressor
水 池Water pool
從上面的生產工藝我們可以看出: 鍋爐出來的蒸汽經壓機后就直接排進了水池, 形成了能源的大量浪費。尤其在保溫、保壓以后, 需要降溫的時候, 壓機模板內蒸汽和熱水被排進水池, 經常會看到熱氣沖天的現象, 表面上看排掉的是蒸汽和熱水, 實際上排掉的就是能源和金錢。We can understand from above that the steam from boiler passes compressor and straightly enters into water pool which causes large energy waste. Especially, as cooling after temperature and pressure insulating, the steam and hot water in compressor would be discharged into water pool. We always see the phenomenon of volcanic steam. Apparently, we have discharged the steam and hot water, but in fact we have wasted the energy and money.
b.過熱水裝置的生產工藝Manufacturing processing
過熱水生產工藝也是用蒸汽加熱(沒有蒸汽鍋爐的,使用導熱油加熱的需通過熱交換器將水溫升到需要的溫度.), 用蒸汽將高溫塔內的水加熱到壓板需要的溫度(最高180℃)形成過熱水, 通過循環水泵將過熱水打進壓機, 壓機出來的水(約120℃)回進高溫塔, 通過蒸汽加熱后繼續供壓機使用, 從而節約了大量的熱能。冷卻的時候, 將中溫塔的水打進壓機, 出來的熱水(約120℃)通過循環水泵打進中溫塔, 當冷卻水的溫度低于80℃時被排進水池。需要重新升溫時, 用中溫塔的熱水將壓機模板內的冷水置換出來, 同時將整個壓機升溫到80-90℃, 再用高溫塔內的過熱水將壓機升溫至需要的溫度。具體流程圖示意如下: The manufacturing processing of overheating water device adopts steam to heat(if steam boiler is not available, heat transfer oil and heat exchanger is necessary). Steam would heat the water in high temperature to the necessary temperature (max. of 180℃) to form hot water which would be pumped into compressor through circulating pump. The water flowing from compressor (about 120℃) would go back to high temperature tower and be used for compressor after heated by steam, which would save large sum of energy. As cooling, pump the water in medium temperature tower into compressor, then the hot water (about 120℃) would be pumped into medium temperature tower by circulating pump. And the water would be drained into water pool as its temperature goes below 80℃. If it is necessary to raise the temperature again, it need to use the hot water in medium temperature tower to exchange the cool water in compressor, meanwhile, to raise the temperature of compressor to 80-90℃ and to the necessary temperature using the hot water in high temperature tower. The principle illustration is as following:
C. 過熱水裝置的加熱工藝與傳統的加熱工藝的區別Difference between the traditional heating processing and overheating water device heating processing
⑴.升溫階段 Phase of temperature rising
①傳統的生產工藝是使用蒸汽將壓機模板內的冷水置換出來, 然后再將壓機系統升溫至設定的溫度, 使用的全部是蒸汽的能量, 因此能耗很高。而升溫后從壓機出來的蒸汽和熱水直接排進了冷水池, 形成的是開放式的加熱系統模式, 造成了熱能大量的浪費。 Traditionally, the steam is used to replace the cold water in compressor, then rise the compressor temperature to setting value. All the energy is from steam and cause large consumption. The steam and hot water from compressor after temperature raised are directly discharged into cold water pool, which is open heating system mode and causes large sum of waste.
②壓機的溫度很不均勻(上面的溫度高, 下面的溫度低, 因為水在下面, 上面全部是蒸汽。)采用過熱水裝置升溫則不同, 升溫的初始階段, 先用中溫塔的熱水將壓機模板內冷水置換出來, 同時可將整個壓機系統溫度預熱到85～90℃, 這部分的熱量就不需要由蒸汽來提供, 從而節約了能源。當整個系統溫度到了85～90℃后, 再用高溫塔的過熱水來升溫整個系統, 壓機出來的熱水經過循環水泵又回進了高溫塔, 形成了 一個封閉系統, 從而節約了大量的能源。同時, 由于過熱水是用循環泵供水, 壓機上面和下面的全部是水, 而且壓力相等, 溫度也相等, 不存在溫差的問題, 生產出來的產品比原來的要好得多。The temperature of compressor is not average (upper part is high and lower part is low; steam gathering on upper part). It would have a different result to adopt overheating water device. At first phase, it need to use the hot water in medium temperature tower to replace the cold water in compressor, meanwhile, pre-heat the compressor to 85-90℃. In this way, such part of heat would not be provided by steam, so the energy is saved. As the system temperature reaches 85～90℃, it could use the hot water in high temperature tower to heat the whole system. The hot water would return to high temperature tower through circulating pump. Such process is a closed system, so it would save large sum of energy. Meanwhile, the overheating water is supplied by circulating pump. The water is full of compressor, the pressure is same and the temperature is same too. So we can gain the high quality product.
③過熱水采用的是分段升溫, 現將壓機從25℃升溫到80-90℃, 然后再升溫到140℃左右。用蒸汽升溫則不同, 將160℃的蒸汽直接通進壓機, 溫差很大。隨著升溫時間的加長, 壓力會降低, 蒸汽溫度也會下降, 熱源會產生波動。過熱水是采用恒溫供熱, 不存在上述問題, 所以生產出來的產品會更穩定。Overheating water adopts the method of progressive temperature rising. Raise the temperature of compressor to 80-90℃ from 25℃ firstly and then to 140℃. It is different to raise the temperature adopting steam. Input the steam of 160℃ directly to compressor which would cause the large temperature difference. As the long time of temperature rising, the pressure would reduce and steam temperature would reduce too, then heating source would fluctuate. On the contrary, overheating water adopts the method of constant heat supply. The above problem would not exist, so the manufactured products would be more stable.
⑵.降溫階段 Phase of temperature reducing
①傳統的工藝在降溫階段是直接將冷卻水通進壓機, 將原來壓機模板內的蒸汽和熱水置換出來, 使整個壓機的溫度降低至設定的出板溫度。所以我們在冷卻水池邊經常會看到有大量的蒸汽和熱水噴進冷水池, 一幅熱氣騰騰的景象。其背后是大量的能源浪費, 實際上就是金錢的浪費。Traditionally, the cooling water would be directly input into compressor at cooling phase and the steam and hot water in compressor would be replaced. The temperature of compressor would reduces to setting value. Therefore, we could always see the steam and hot water flow into cold water pool, which is actually the waste of energy and money.
②使用過熱水裝置則大不同, 先用中溫塔的熱水將壓機冷卻到90℃, 出來的熱水約100-140℃回進中溫塔, 低于80℃的水則被排進了冷水池。從而節約的熱能, 在水池邊再也看不到熱氣騰騰的場面了。It would have the different result that use overheating water device. Cool the compressor to 90℃ by the hot water in medium temperature tower. The water of 100-140℃ would return to medium temperature tower and the water lower than 80℃ would be discharged into cold water pool. We would never see the phenomenon of volcanic steam and the energy is saved.
③由于過熱水裝置采用的是分段降溫, 溫差小, 生產出來的產品柔韌性很好, 不容易破碎, 成品率會更高。As overheating water adopts the method of progressive temperature reducing, the temperature difference is little. Therefore, the manufactured products are well flexible, not easy fragile and high acceptability rate.
