Application case of kps20-700 centrifugal pump in tap water pump house

Kps20-700 horizontal split double suction pump is an energy-saving split double suction centrifugal pump designed by Guangdong KENFLO Pump Co., Ltd. in 2004.

Its main features are:

High efficiency and energy saving

This type of pump has the highest operating efficiency. After efficiency test, the operating efficiency of this pump at the rated operating point reaches 92%.

Wide efficient area

This type of pump not only has high efficiency at the rated point, but also has a high operating efficiency in a relatively large flow range. From the analysis of the actual test data, the efficiency of the pump is higher than 89% in the flow range of 2000 ~ 3300m3 / h.

Biaxial extension structure

It has a double shaft extension structure, and both ends can be connected with motors, which is convenient for users to choose different layout modes.

High end material

The impeller is made of duplex stainless steel; The shaft is made of 20Cr martensitic stainless steel; All bolts are made of 1Cr18Ni9; It can prevent corrosion and rust, and has excellent cavitation resistance.

Bearing design with high reliability and less maintenance

The pump adopts the support structure at both ends, the bearing adopts the deep groove ball bearing, and the lubrication method adopts the grease lubrication. The daily maintenance workload is minimal, and the service life of the bearing is long.

A water supply company in Dongguan of Yuehai water group has been very recognition of Kenflo's products for many years, and has selected Kenflo's KPS Zhongkai double suction pump for many times. This time, Kenflo's KPS series centrifugal pump is also selected for the transformation of raw water intake pump. At the same time, the dismantling of old equipment and the

installation and construction of new centrifugal pump units are also completed by Huizhou kenfulai Pump Sales Co., Ltd.

The above photo shows the KPS Zhongkai double suction pump that has been installed and is running.

This installation adopts the single meter method to adjust the coupling alignment, and the dial indicator adopts the digital dial indicator. The coupling is of diaphragm type, and the material of diaphragm is 304 stainless steel.

Rotate to 90 degrees, 180 degrees and 270 degrees respectively, and record the reading of dial indicator. Then install the dial indicator in the radial direction, rotate it by a certain angle, and record the data of the dial indicator.

Then the radial deviation and axial deviation of coupling alignment can be obtained by substituting them into the formula for calculation. If the deviation value is too large, adjust it until the deviation value meets the requirements of the technical specifications.

Above: Kenflo's engineers and technicians are centering the coupling

After the coupling alignment is completed, the pump unit is ready for commissioning and trial operation.

The pump unit has been commissioned and put into trial operation. See the multi-function electricity meter for the current data of the test run. The current values of three phases are 228a, 231a and 232a respectively.

The AC current gear of the multimeter is used, and the single-phase current measured at the motor connection is 222a. There is a certain deviation. Usually, when the clamp meter is used to measure the current, there will be a certain deviation.

Above: technicians of Kenflo pump are measuring the bearing vibration value when the pump is running on site. The measured bearing vibration value is 0.1mm/s, which is far lower than the 2.8mm/s specified in relevant international standards.

After 2 hours of operation, the temperature of the bearing was measured.

According to the temperature measurement, the temperature of the pump bearing is 25.5 degrees, and the temperature rise is very small. The system is in good condition.

View the operation video of this pump:

If the video is jammed, you can also download it to your local hard disk and play it again. Download address:https://www.hzken.com/wp-content/uploads/2022/09/yblzkfldKPSpumps.mp4