THE HALL DUPLEX STEAM PUMP,

THE HALL DUPLEX STEAM PUMP,

随附的切割说明了由纽约的Hall Steam Pump Company，用于水和污水处理的最新形式的双链蒸汽泵，以及较小的尺寸，用于起重机，液压电梯和其他机械。它是通常的美国双胞胎类型，感兴趣的主要特征是蒸汽阀的建设和布置以及它们的操作方式。阀R和ST VT分别由辅助蒸汽柱和FT控制，在圆柱体G和GJ中工作。阀V，调节蒸汽的接收到c X的通道，而通道CI和F连接了圆柱体I！在c和d时阀的内部与辅助端口X的末端进行通信，并打开进入圆柱II的主要排气通道。从图中可以明显看出，阀P将柱塞ft的活塞后面的空间连接到辅助缸中，带有主蒸汽缸II和后者的排气通道。以完全相似的方式，双阀VT控制着ft，ct，ft，dt，XT和x'i的段落。并通过ft和ct或从主缸i到辅助圆柱体的末端接收蒸汽，并用后者或从而使其从后者或从而耗尽了双阀VT，该阀VT由柱塞运行，而柱塞则在柱塞上进行了操作，而柱塞则在柱塞上进行了操作。由FT操作的双阀VT调节主幻灯片S的运动，H与H相连，当然它们与后者移动。为了使这些阀的作用清晰明了，让我们假设圆柱体的活塞已整齐地完成了左侧的笔触，并发现了通道ft，阀门和st处于图中显示的位置。 In that case, the live steam entering the cylinder through at flows out through under the valve Vt, by the passage to the back of the hand piston of the plunger and forces the latter over to the right into the position shown, and with it the valves t, and v,. This opens the admission port ai to the left of the piston in cylinder II, and connects the space to the right through with the main exhaust passage. At the same time the steam at the opposite end of the escapes through and into the main exhaust of cylinder I. By the opening of port a, steam is admitted on the left of the piston of II, which had previously been at rest, and starts it on its stroke it live steam will pass through this port and through d, to the left end of the auxiliary cylinder Ga, forcing over the plunger/a to the right, and with it the valves and In the meantime, the steam to the right of plunger p, escapes through c and x, into the exhaust passage of cylinder II. The movement of the valve s, starts the piston of cylinder I to the right, and the same cycle of operations is repeated.

首先，应该指出，活塞杆和阀之间没有机械连接，后者完全由Steam工作。通过参考图，最好理解执行此操作的方法。1，这并不是要显示实际的建设性细节，而只是用作说明性图，可以遵循蒸汽通道的过程和阀门的作用。主要的蒸汽缸1和II由幻灯片阀R和普通形状的st提供。但是，蒸汽和排气管与AFAT和AFAT的圆柱体通信有单独的通道，排气口B远远超过蒸汽端口a。与阀R相同的铸件组成部分，而FA分别是双幻灯阀R'和PJ，实际上与前者相同的面孔。但是，如Tig所示，它们没有像图中那样放置，而是并排排列。4。