Notes on the installation of chemical pumps
2023-01-06
The installation steps of chemical pump are as follows.
1. Do a good job of concrete foundation according to the foundation size, and at the same time bury the ground bolts of the chemical pump.
2. Check the chemical pump and motor before installation, each part should be intact, and there should be no debris inside the chemical pump.
3. Put the chemical pump on the foundation as a whole, put the damping block between the base plate and the foundation, and find the level of the chemical pump by adjusting the damping block. After aligning, tighten the foot bolt.
4. The inlet and outlet piping of the chemical pump should have brackets, and the chemical pump should not be used to support the force. The inlet and outlet pipe caliber should be the same as the import and export caliber of the chemical pump.
5. The self-priming chemical pump should be installed with the inlet pipe first, and then the outlet pipe after filling with liquid and correcting the steering. The inlet pipe of the pump should be matched with the pump, and the total length should not exceed 5 meters, otherwise it will affect the self-priming function of the self-priming chemical pump, and the self-priming height can be calculated according to this formula: self-priming 3m/media density = actual self-priming height when clear water.
6. When the installation of chemical pump is finished, then turn the coupling by hand to check whether there is any scraping phenomenon, and the rotation is easy and even when the installation is finished.
7. The magnetic chemical pump cannot pump the liquid containing particles and easy to crystallize, and it is not allowed to run continuously with the discharge port closed, and the flow rate should be kept low.
8. In order to prevent debris from entering the chemical pump, a filter should be installed at the inlet, and the filtering area should be greater than 3-4 times the cross-sectional area of the pipeline.
9. High head chemical pumps in the export pipeline should also be installed on the check valve to prevent the sudden stop of water hammer damage.
10. To ensure that the installation height of the chemical pump is in line with the cavitation margin of the pump, and also take into account the pipeline loss and medium temperature. To prevent the cavitation margin in the chemical pump pump body, please be sure to comply with the following formula: NPSHa ≥ NPSHr 0.5NPSHa: available cavitation margin (m) NPSHr cavitation margin (m) NPSHa = 106 (Pa-Pv)/ρg県s-hf Pa: pressure acting on the surface of the transport medium (MPa) Pv: vapor pressure of the medium (MPa) ρ. Media density (kg/m3) hs: suction lift height (m) hf: suction pipe resistance (m) g: gravity plus degree (m/s).
11、When the liquid temperature is high, the mechanical seal of the chemical pump should take cooling measures to prevent the deformation of the machine seal and the static ring from cracking.
12、When the viscosity of the liquid pumped by the chemical pump is too high, the pump performance and power will change, you can contact us for details.
Previous page
Next page
Previous page
Next page
01-06
The three taboos of submersible pumps
Any equipment has a service life. The length of service life is not only related to the quality and performance of the equipment itself, but also related to the specifications of people's use. If we do not use the equipment according to the regular requirements, the service life of the equipment will be shortened. Today will introduce three taboos of submersible pumps.
01-06
Factors affecting the normal operation of submersible pumps
We are in the process of using submersible pumps, once there are problems such as poor sealing, the product is immersed in water for a long time, even if it is not used, the insulation value will drop, and in serious cases, it can not be used. In general, the main factors affecting the normal operation of submersible pumps are as follows.
01-06
Reasons for high current during operation of submersible pumps
Submersible pump in operation, if the current is high, then the cause of the problem must be with the pump valve regulation and mechanical failure of the motor are necessarily related, at this time, first do not rush out of the problem, find the cause of the fault, and then in the implementation of the next maintenance plan, let's understand together.
01-06
Water pump industry gradually towards standardized development
With the continuous progress of technology, pump products will certainly develop in the direction of intelligence, to be able to monitor parameters such as pressure, flow, temperature and vibration; to be able to assess the pump shaft, bearing and seal condition; to be able to diagnose the cause of failure, etc..
Boqi
Mobile website
Product brochure
