对于双吸泵大家应该并不陌生，双吸泵作为离心泵的一种重要形式，因其具有扬程高、流量大等特点，在工程中得到广泛应用。这种泵型的叶轮实际上由两个背靠背的叶轮组合而成，从叶轮流出的水流汇入一个蜗壳中。双吸泵具有如下一些特点：它相当于两个相同直径的单吸叶轮同时工作，在同样的叶轮外径下流量可增大一倍;泵壳水平中开，检查和维修方便，同时，双吸泵进出口在同一方向上且垂直于泵轴，利于泵和进出水管的布置与安装;双吸泵的叶轮结构对称，没有轴向力，运行较平稳。在我国黄河沿线地区提灌泵站流量较大、扬程都较高，大多采用双吸离心泵。南水北调中线惠南庄泵站也采用了双吸泵进行供水。

For double suction pump, you should be familiar with it. Double suction pump is an important form of centrifugal pump. Because of its high lift and large flow, it is widely applied in engineering. This pump impeller is actually made up of two back-to-back impellers, and the flow of water from the impeller into a volute. Double suction pump has the following features: it is equivalent to two of the same diameter single suction impeller at the same time, can be doubled in the outer diameter of the impeller under the same flow; the pump shell level in the open, convenient inspection and maintenance, at the same time, double suction pump inlet and outlet in the same direction and perpendicular to the shaft, to pump and water pipe layout and installation; the structure of the impeller symmetric double suction pump, no axial force, relatively stable operation. High in the irrigation pumping station flow along the the Yellow River area of our country, big head, most of the double suction centrifugal pump. South to North Water Diversion Project Huinanzhuang pump station also uses a double suction pump for water supply.

但你知道该怎样维护双吸泵吗?下面让我们给你详细介绍一下。

But do you know how to maintain a double suction pump? Let's give you a detailed description of the pump below.

双吸泵的特点是结构简单可靠，经久耐用。在双吸泵正常情况下，一般不需要经常拆开保养。当发现故障后随时给予排除既可。

The dual suction pump is characterized by simple and reliable structure and durable. In the normal condition of double suction pump, it is generally not necessary to open up maintenance. When a fault is found, it can be removed at any time.

深井潜水泵、微型潜水泵、不锈钢潜水泵、热水潜水泵、潜水排污泵

Deep well submersible pump, mini submersible pump, stainless steel submersible pump, hot water submersible pump, submersible sewage pump

1、维护双吸泵时应注意几个主要部位：

1, the maintenance of double suction pump should pay attention to several main parts:

A、滚动轴承：当长期运行后，轴承磨损到一定程度时，须进行更换。

A, rolling bearing: when the bearing is worn to a certain degree after long-term operation, it must be replaced.

B、前密封环、后密封环：当密封环磨损到一定程度时，须进行更换。

B, front seal ring, back seal ring: when the seal ring is worn to a certain extent, it must be replaced.

C、机械密封：双吸泵机械密封在不漏液的情况下，一般不应拆开检查。若轴承体下端泄漏口处产生严重泄漏时，则应对机械密封进行拆检。装拆机械密封时，必须轻取轻放，注意配合面的清洁，保护好静环和动环的镜面，严禁敲击碰撞。因机械密封而产生泄漏的原因主要是摩擦副镜面拉毛所至。其修复办法：可对摩擦副端面进行研磨使恢复镜面。机械密封产品泄漏的另一原因是O形圈安装不当、或者变开老化所至。此时则需更换O形圈进行重新装配。

C, mechanical seal: double suction pump mechanical seal in the case of no leakage of liquid, generally should not be dismantled. If the lower bearing body place of leak serious leakage, should be dismantled for inspection of mechanical seal. Installation of mechanical seal, must handle with care, with the attention of the cleaning, protection of static ring and moving ring mirror, no knock. Because of the mechanical seal leakage and friction is the main reason to surface galling. The repair method: the end face of the friction pair can be grind to restore the mirror surface. Another reason for the leakage of mechanical seal products is the improper installation of the O ring or the change of aging. At this point, the O ring should be replaced for reassembly.

双吸泵的结构性能：

Structure performance of double suction pump:

1.结构紧凑、占地空间小、轴向尺寸大压缩

1. compact structure, small space, large axial size compression

2.振动小、噪音低，主要采取如下措施减小振动和降低噪音

2. small vibration and low noise, the following measures are taken to reduce vibration and noise reduction.

3.泵壳采用双蜗壳结构

Double shell structure of 3. pump shell

4.转子部件轴向尺寸短且刚性好

4. rotor parts have short axial size and good rigidity.

5.泵轴采用进口高精度轴承支撑

The 5. pump shaft adopts imported high precision bearing support