喷泉专用泵是喷泉工程中必须存在的一种喷泉设备，选择合适的喷泉专用泵能使喷泉达到预期设计的效果。所以在喷泉专用泵的选择上面有很多讲究和注意叠浪喷泉工程厂家工程师王工为大家先整理一下喷泉专用泵的选型的原则
Fountain pump is a kind of fountain equipment that must exist in fountain engineering. Selecting suitable fountain pump can make fountain achieve the desired design effect. Therefore, in the selection of fountain pump, there are a lot of stress and attention to superimposed wave fountain engineering manufacturer Engineer Wang Gong for you first sorted out the selection principle of fountain pump.
1、所选定的喷泉专用泵，其流量和扬程应与喷泉系统设计流量和设计水头基本一致，且当工作点变动时，泵始终在高效率范围工作，不致产生汽蚀或使动力机过载。
1. The flow rate and head of the selected special fountain pump should be basically consistent with the design flow rate and head of the fountain system. When the working point changes, the pump always works in the high efficiency range without cavitation or overloading of the engine.
2、喷泉专用泵的大小和台数是相互制约的。喷泉专用泵选得大，则效率高，安装台数少，设备、土建和管理等费用均可相应减少;但是，台数又不能太少，否则1台泵发生故障，对全系统影响很大。一般以安装2~4台为宜。当系统设计流量较小时，也可只设置1台喷泉专用泵，但应配备足够数量的易损零件。喷灌泵站一般不设置备用喷泉专用泵。
2. The size and number of special fountain pumps are mutually restrictive. If the special pump for fountain is selected large, the efficiency will be high, the number of installations will be small, and the cost of equipment, civil engineering and management will be reduced accordingly; however, the number of units can not be too small, otherwise one pump will break down, which will have a great impact on the whole system. Generally, it is advisable to install 2-4 sets. When the system design flow is small, only one fountain pump can be installed, but enough vulnerable parts should be equipped. Sprinkler pumping stations generally do not set up special spare fountain pumps.
3、如果有几种泵型都能满足喷泉系统设计流量和设计水头的要求，则应选择其中效率高，配套功率小，便于操作、维修，并使喷泉系统的总投资小的那种泵型。
3. If there are several types of pumps that can meet the requirements of design flow and head of fountain system, the pump type with high efficiency, low matching power, easy operation and maintenance, and low total investment of fountain system should be selected.
4、同一喷泉系统安装的喷泉专用泵，尽可能型号一致，这样：①便于管理和零件配换;②适应自动化和半自动化控制;③使泵房结构单一。
4. The special pump for fountain installed in the same fountain system should be of the same type as possible, so that: (1) it is easy to manage and replace parts; (2) it is suitable for automation and semi-automation control; and (3) it makes the structure of pump house single.
5、如果现有的喷泉专用泵型号不能满足喷泉系统设计流量与设计水头的要求，可采用串联、并联以及变速的方法解决。
5. If the existing type of fountain pump can not meet the design flow and design head requirements of fountain system, series, parallel and variable speed methods can be used to solve the problem.
6、尽可能选择汽蚀性能好的喷泉专用泵，这对于简化泵房结构、减少泵站投资、保证机组安全运行有很大影响。以选择离心泵为例。如果所选泵的允许吸上真空高度值大，而水源水位变化又不大时，可采用简易的、由砖木结构所组成的分基型泵房;反之就必须改用较为复杂的、由钢筋混凝土与砖石混合结构组成的干室型泵房。
6. Choosing fountain pump with good cavitation performance as far as possible has great influence on simplifying pump house structure, reducing investment of pump station and ensuring safe operation of unit. Take centrifugal pump as an example. If the allowable vacuum height of the selected pump is large and the water level of the water source is not changed much, a simple and basic pump house composed of brick and wood structure can be used; otherwise, a more complex dry chamber pump house composed of reinforced concrete and brick and stone mixtures must be used.
7. Recommend the use of national and ministerial products and products and energy-saving products with national production licenses to avoid the use of obsolete products.
7、推荐采用国优与部优产品以及获得国家生产许可证的产品与节能产品，避免采用淘汰产品。
7. Recommend the use of national and ministerial products and products and energy-saving products with national production licenses to avoid the use of obsolete products.
喷泉专用泵选型必须符合喷泉系统设计要求，包括喷泉系统设计流量的要求以及设计水头的要求，只有达到这些要求，才能实现设计效果。
The selection of special pump for fountain must meet the design requirements of fountain system, including the design flow requirements of fountain system and the design head requirements. Only by meeting these requirements can the design effect be achieved.
