a.传统的加热工艺Traditional heating processing
锅炉供汽电厂蒸汽 Boiler supplied power plant steam
热 压 机Heat compressor
水 池Water pool
从上面的生产工艺我们可以看出: 锅炉出来的蒸汽经压机后就直接排进了水池, 形成了能源的大量浪费。尤其在保温、保压以后, 需要降温的时候, 压机模板内蒸汽和热水被排进水池, 经常会看到热气冲天的现象, 表面上看排掉的是蒸汽和热水, 实际上排掉的就是能源和金钱。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.
过热水生产工艺也是用蒸汽加热(没有蒸汽锅炉的,使用导热油加热的需通过热交换器将水温升到需要的温度.), 用蒸汽将高温塔内的水加热到压板需要的温度(最高180℃)形成过热水, 通过循环水泵将过热水打进压机, 压机出来的水(约120℃)回进高温塔, 通过蒸汽加热后继续供压机使用, 从而节约了大量的热能。冷却的时候, 将中温塔的水打进压机, 出来的热水(约120℃)通过循环水泵打进中温塔, 当冷却水的温度低于80℃时被排进水池。需要重新升温时, 用中温塔的热水将压机模板内的冷水置换出来, 同时将整个压机升温到80-90℃, 再用高温塔内的过热水将压机升温至需要的温度。具体流程图示意如下: 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. 过热水装置的加热工艺与传统的加热工艺的区别Difference between the traditional heating processing and overheating water device heating processing
⑴.升温阶段 Phase of temperature rising
①传统的生产工艺是使用蒸汽将压机模板内的冷水置换出来, 然后再将压机系统升温至设定的温度, 使用的全部是蒸汽的能量, 因此能耗很高。而升温后从压机出来的蒸汽和热水直接排进了冷水池, 形成的是开放式的加热系统模式, 造成了热能大量的浪费。 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压机的温度很不均匀(上面的温度高, 下面的温度低, 因为水在下面, 上面全部是蒸汽。)采用过热水装置升温则不同, 升温的初始阶段, 先用中温塔的热水将压机模板内冷水置换出来, 同时可将整个压机系统温度预热到85～90℃, 这部分的热量就不需要由蒸汽来提供, 从而节约了能源。当整个系统温度到了85～90℃后, 再用高温塔的过热水来升温整个系统, 压机出来的热水经过循环水泵又回进了高温塔, 形成了 一个封闭系统, 从而节约了大量的能源。同时, 由于过热水是用循环泵供水, 压机上面和下面的全部是水, 而且压力相等, 温度也相等, 不存在温差的问题, 生产出来的产品比原来的要好得多。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过热水采用的是分段升温, 现将压机从25℃升温到80-90℃, 然后再升温到140℃左右。用蒸汽升温则不同, 将160℃的蒸汽直接通进压机, 温差很大。随着升温时间的加长, 压力会降低, 蒸汽温度也会下降, 热源会产生波动。过热水是采用恒温供热, 不存在上述问题, 所以生产出来的产品会更稳定。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.降温阶段 Phase of temperature reducing
①传统的工艺在降温阶段是直接将冷却水通进压机, 将原来压机模板内的蒸汽和热水置换出来, 使整个压机的温度降低至设定的出板温度。所以我们在冷却水池边经常会看到有大量的蒸汽和热水喷进冷水池, 一幅热气腾腾的景象。其背后是大量的能源浪费, 实际上就是金钱的浪费。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使用过热水装置则大不同, 先用中温塔的热水将压机冷却到90℃, 出来的热水约100-140℃回进中温塔, 低于80℃的水则被排进了冷水池。从而节约的热能, 在水池边再也看不到热气腾腾的场面了。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由于过热水装置采用的是分段降温, 温差小, 生产出来的产品柔韧性很好, 不容易破碎, 成品率会更高。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.