第12章 蒸汽机（一）
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龙腾小说ltxs520.com林缚将立嫡之事抛之脑后，也不急着去前院参加庆宴，临夜闹这么一场，总要叫大家有个时间缓冲一下情绪，叫小蛮帮他举灯研究图纸沸-腾_)
林缚原以为不会这么早，他请姜岳看过跑马灯、正式将蒸汽驱动原理的那层窗户纸揭开才过去十四个月，集结当世工械之大成、在天文、历法及算术之上有着时人难以相比造诣的原司天监少监姜岳，便设计出以蒸汽为动力的抽水机及蒸汽驱动车各一样，于昨日将图纸送来国公府，就封存于腾室里等着林缚归来阅看
抽水机倒不是什么鲜事物，川蜀开采井盐就掘井打到矿盐层、注水溶盐为卤，再用抽水机将卤水从地下抽出来煮制成盐；南洋金州岛开采浅层原油，也用这种主要利赖于人力或畜的抽提技术——当世的匠术，远没有想象中那种落后，只是有限的市场、有限的行业、有限的需求限制了匠术进一步的发展
崇州船场建有干船坞，以利提高造船及修船的效率，一座大型干船坞的容积常达数万甚至十数万石，要将里面的水抽干，没有抽水机械，仅靠人捅提瓢舀是难以想象的
江宁、徐泗、湖西等地都有丰富的矿产，其中当世所极需的，也是林缚大力推广使用的便是煤矿但是在平原及低丘陵地区采煤，最大的问题就是煤层稍深一些，地下水就会不断渗入矿洞需要不断的用抽水机将地下水从矿洞排走，矿工才能顺利的采矿煤石
以往煤场排水，多用人力与畜力——只是人力与畜力抽水的效率极慢，唯有偶尔有条件允许的地方，则使用水力驱动抽水机能进行持续作业
有矿藏又同时有丰富水力资源的矿区特别稀少，溪流所提供的水力驱动，还严重受到季节的影响，目前还只有在夷州竹溪县发现这么一处煤场
仅仅是这样子，就使得竹溪煤走海路千里迢迢运来江宁，甚至比从仅百余里之外、有运河相接的溧水煤场所产煤运往江宁，成本还要稍许低廉一些
林缚最早要求姜岳能设计出蒸汽驱动的抽水机用于煤场排水
一是受地下渗水困扰是徐泗地区采煤成本不能再度大幅下降的主要原因，对高效的抽水机有着极迫切的需求；第二个就是煤场能为蒸汽抽水机提供充足且廉价的燃料
与林缚最初所展示的用锅炉产生蒸汽直接冲击叶轮以驱动的原理不同，姜岳所设计的蒸汽机是利用蒸汽在气缸里膨胀、冷凝来反复推动活塞及联结杆以为驱动——
在姜岳所给的解释里，是林缚之前所示的驱动原理，实际试验时所产生的驱动力不足以持续不断的驱动联结杆运作；姜岳邀集近百名匠师费尽心思，在一年多时间里，设计出数十套方案进行试验，最的驱动构结，还是仿效蜀地所传的取卤之法
姜岳也是知道林缚今日会回江宁，才特地赶在昨日将最的设计图纸送来腾室等林缚备阅
林缚对后世器械远谈不上有熟悉，但姜岳所绘图纸简洁明了，略知蒸汽膨胀冷凝之理的人都能从中看出驱动的工作原理来
虽然初制之蒸汽机功效必然不会叫人立即满意，但林缚相信，只要坚持走下去，就能打开通往蒸汽机械时代的大门……
林缚看到姜岳昨日才临时密呈上来的蒸汽机图纸，因嫡争之事所产生的那点不快，也很快转眼间烟消云散，暗感时人的智慧，实不容何人轻视
小蛮见林缚的心神给长案画得像机械怪兽的宣纸图完全吸引，不再为刚才的争嫡之事烦神，问道：“到底是什么紧要的东西，在夫君眼里倒是比立嫡一事还要重要？”
“这才是真正打开另一个时代大门的金钥匙，”林缚哈哈一笑，得意的拿手指弹着图纸，说道，“旁人视匠术杂学为歪门邪道，为小道；在我眼里，匠术杂学才是真正的大道，而儒法诸家所传的王道、霸道之帝王权术，才是小道……”
“既然王霸之帝王权术都是小道，夫君今日又为何这般？”小蛮不解的问道，立储之事必然要算帝王霸业里极重要的一桩事，林缚今日之举动，也确实叫她们吓了一跳，便是顾君薰、柳月儿、孙文婉、顾盈袖等女这时都不敢到腾室里来探看一下
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