308 电网开建(1 / 2)

大型精密加工能力的突破需要时间酝酿,而蒸汽轮机已经被用上了。

在研究院加入项目之前,蒸汽轮机组已经完成很多早期工作,包括各部件合金种类的选用等。

蒸汽轮机虽然相对燃气轮机属于低温设备,但要达到较高的热效率,蒸汽温度仍然要达到五百至六百度之间,在这个温度区间,要免受蒸汽的强腐蚀影响,可供选择的钢种并不多,包括铁镍锰合金、铁镍钴合金、铁镍硅碳铸铁、不锈钢等,镍或铬都是不可或缺的防腐要素,也许有别的合金也能达到类似的效果,但铁厂弄不出来也是白说。

所有的金属,都做过相关的高温蒸汽腐蚀实验。

早期工作做得好,后面就没有什么反复,轴承弄出来后没多久,重工就用上了蒸汽轮机驱动的车间动力源。

蒸汽轮机和往复式蒸汽机效果截然不同,轮机的转速每分钟按千算,已有的车间轴承有铆接结构,受不了这种转速,需要齿轮组进行转接,这又是其他小组的工作。

不管中间的麻烦,总之在蒸汽轮机接入加工车间动力源后,利用轴传动和连杆传动的差异,的确实现了加工精度的有限提升。

重工的厂长、车间长们也十分鸡贼,测试后就用这套蒸汽轮机替换了轴承车间的动力源,还是让最优秀的工人操作,来加工精度更高的轴承。

虽然没有办法反复套娃,但轴传动造出来的轴承的确又有微幅提高,整机噪音明显下降,这第二套本应交付给风谷电厂的蒸汽轮机被留在家里,把样机发了过去!

就算被事后问起,也可以美其名曰是做测试。

风谷电厂这边接到蒸汽轮机,当场就哭了……不是发现了什么,而是高兴的。

风谷电厂纯粹是个冤种企业,因为发电效率低导致的电价高企,没办法推进民用进程,他们的经营全看几个耗电大户尤其是风谷有色既现在的彩虹金属的脸色,没什么钱赚还老受气,要不是有官方股份和补贴,早就不愿意干了。

蒸汽轮机一接入电网,电厂立刻关停了全部老式蒸汽机,效率差太远了,功率也不可同日而语。

往复式蒸汽机根本用不到五百多度的蒸汽,对它们而言,两百度和五百度的蒸汽差别不大,10%热利用率都是个超级门槛,蒸汽温度高了纯属浪费燃料。

而这次订购的蒸汽轮机,功率已经达到50兆瓦,只是受限于电机厂的辣鸡发电机,串了两台最新的发电机还只能发出22兆瓦的电,要不是动力轴向稳定度随串联量降低,非要给它串上十几台。

为了把功率上限过高的蒸汽轮机用好,想来想去还是得求重工。

随后又订购了一套齿轮组,才完成一拖四发电,输出功率来到44兆瓦。

这个功率每天的发电量有一百万度出头,抛开现有的工业用电还有一定盈余量,总算可以推进王庭来的指示了。

王庭的指示其实有点问题,按指示,风谷电力要和新建的黑曜石电力合并,股份无缘无故少了一截。

但不同意又不行,因为他们现在在用的这台蒸汽轮机,本来就是黑曜石电力的配额,不并入马上就要挤死。

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