保罗·夏皮罗(Paul Shapiro)的文章和照片
SMALL-GPM WATER SUPPLY
小,流量火灾统计上做的很好with a basic supply line evolution from the hydrant. However, in the rare situation that the initial supply line can’t produce the required flow, you must have a plan to get more water. This type of operation is called “supplementalpumping,” a term used for operations that bring in an additional water supply to an engine that has its initial water supply and is running out. It is important to delegate this task to a unit from the start before a problem arises, not after. It can be as simple as having one operator with an engine set in staging ready to lay that second supply line to the pumping engine.
Many departments use a hydrant assist valve增加流向现有供水的流量。该设备与设备上的电源线的末端预先连接,并在铺设线时附着在消防栓上。当消防栓打开时,水流过阀门并直接进入供应线,直接进入接收泵,如正常操作中。如果需要从消防栓上进行更多的水,则第二个浮力器可以连接到阀门,将水通过泵转移,并在不关闭消防栓的情况下通过供应线增加流动线。
大流量供水
During the initial size-up of a large-volume fire, one of the tasks that needs to be addressed is setting up secondary water supplies to the initial attacking units. Again, as with the small-fire operations, assign operators and their units to develop the evolutions needed. The only difference between the large- and small-water supplies is that the units should immediately deploy the secondary water supply evolutions. There’s thatproactive再次说。不要等待供水问题出现;设置该备份系统以期待问题,因为在大问题上,它很有可能会。现在是时候最大程度地努力将水尽可能多地供水到火场。
Supplemental pumping is the key ingredient for a large-flow water delivery operation, especially when distant hydrants are needed to supply engines already operating and in need of more water.Often at large fires, the first few units will lay from hydrants close to the fire and spot in the area needed. This is when a water supply problem usually starts. These units have everything they need to attack the fire. They have the personnel, correct apparatus placement, and proper deployment of the discharge evolutions. Since these units brought in hydrants close to the fireground, the hydrant grid system in that area is becoming depleted of water or pressure.
(6)双重的替代品-pump operation uses a large gated manifold at the receiving end of the relay to distribute the water to multiple engines on the fireground.
Figure 1. This illustration shows a looped supply line evolution. Several engines are connected to five hydrants,使用双泵操作共享水。