빌지 펌프: 보트에 필요한 펌프

빌지 펌프배를 떠 있게 하기 때문에 배에서 가장 중요합니다. 두 가지 기본 유형이 있습니다.원심 분리기그리고횡격막. 

원심 펌프임펠러를 사용하며 일반적으로 전기 또는 기계적으로 구동됩니다. 그것들은 엔진이나 발전기 샤프트에서와 같이 전기 소스 또는 직접적인 기계적 동력에 의존합니다. 전기 펌프를 설치할 때 배선 연결이 중요합니다. 연결은 방수가 되어야 하며 펌프 및/또는 플로트 스위치와의 간섭을 방지하기 위해 가능한 한 방해가 되지 않도록 단단히 고정해야 합니다.

Some electric marine pumps include an internal float switch which, of course, activates the pump when water rises. These are usually smaller pumps, and the internal switch design can render them more susceptible to blockage and sticking due to bilge debris. Most bilge pumps require a separate float switch allowing easy testing of the switch and pump (manually lifting the switch arm) and separate installation positions for the switch and pump. For example; wisdom holds that two pumps may be better than one. Both pumps can be strategically located in the bilge, but the switch for one pump can be higher than the other. This allows automatic operation of only one pump for regular duty, thereby reducing current draw and the life of only the one pump. As any long time boater knows, emergencies happen. When water intake exceeds the capabilities of the primary pump, the higher switch will activate the back-up pump.  

There are many type of centrifugal pump can meet the requirement.  vertical pump( CLH, CLZ, CQX ) horitontal pump (CWZ, CWL, CIS) etc.

 For smaller boats or those without power such as sailboats, rowing boats, etc., a manual suction or 다이어프램 유형잘 작동합니다. 이 펌프는 저렴하고 휴대할 수 있습니다. 그들은 또한 빌지의 잔해에 의해 쉽게 막히지 않는다는 장점이 있습니다. 그들은 신뢰할 수 있고 전원을 공급할 수 있는 한 훌륭하게 작동합니다. 문제는 더 큰 보트에서 얼마나 오래 펌프를 조작할 수 있습니까? 이러한 펌프는 기계적으로 또는 전기적으로 구동될 수도 있지만 일반적으로 더 크고 무거우므로 원심 펌프가 일반적인 선택입니다. 그러나 옵션은 좋습니다. 해당하는 경우 두 가지 유형을 모두 고려하십시오.

This brings us to another point. When purchasing pumps, do not skimp; as important as life jackets, rafts, ELT's and VHF's can be in an emergency, the good bilge pump is often your first line of defense against losing a boat and sometimes more. At the very least, in a flooding situation, good pumps can buy you time for options.

It is important to understand that advertised marine pump ratings in gallons per hour (GPH) are not accurate for normal use. Pumps are tested and rated in laboratory conditions with short outflow pipes on the horizontal. Under actual conditions we have to consider "head" which means overcoming both the friction of the outflow tubing and gravity to raise the water to the through-hull fitting. Common bilge pump tubing is a corrugated design which creates a great deal of friction. Smooth bore tubing is more expensive, but better.

Also, consider friction loss as outflow is restricted at the smaller diameter through-hull fitting. Now we have to lift the water from the bilge to overboard, usually through a through-hull fitting. Holes in a boat near the water line are to be avoided as much as possible. The through-hulls for your pumps should be at least eight inches above the waterline. For mono hull sailors, don't forget you're going to heel. For small boaters or commercial applications, remember that the water line will be higher if you heavily load the boat. You should always use a "safety loop" when piping overboard. That is, the piping should be looped higher than the through-hull to prevent water coming in if the through-hull is submerged. This loop, of course, increases the head, so it must be considered when choosing a pump.