3 chemical magnetic pump knowledge

Chemical magnetic mercury has very many advantages and characteristics, today to give you a science of its isolation sleeve damage problem, the reliability of the static seal and magnetic pump viscosity, and other three current issues of concern.

Here is the list of contents

1. Chemical magnetic pump seal

2. Chemical magnetic pump isolation sleeve damage causes

3. Chemical magnetic pump viscosity problems

Chemical magnetic pump seal.

1. Seal form

For static seals, there are usually only two forms of gaskets and seals, and the seals are most widely used in the O-ring.

For dynamic seals, chemical magnetic pumps rarely use packing seals, mechanical seals, mechanical seals, and single-ended and double-ended, balanced and non-balanced, balanced for high-pressure media sealing (usually refers to the pressure greater than 1.0MPa), double-ended machine seal is mainly used for high temperature, easy to crystallize, viscous, containing particles and toxic volatile media, double-ended machine seal should be injected into the sealing chamber Isolation fluid, its pressure is generally higher than the medium pressure 0.07~0.1MPa.

2. Seal material

The pump static seal material is generally used fluorine rubber, special circumstances before the use of polytetrafluoroethylene material; mechanical seal static and dynamic ring material configuration is more critical, not carbide to carbide is the best, the high price is one hand, the two no hardness difference is not reasonable, so it is best to differentiate according to the characteristics of the medium.

Chemical magnetic pump isolation sleeve damage causes

1. Isolation sleeve damage: magnetic coupling of the magnetic pump is cooled by the medium transported by the pump, if there are hard particles in the medium, it is easy to cause the isolation sleeve to scratch or scratch through, sometimes if the maintenance method is not appropriate may also cause damage to the isolation sleeve.

2. The pump operating conditions fluctuate greatly and lead to problems: the axial force of the magnetic pump is automatically balanced through the hydraulic equalization method. In actual operation, if the operating parameters fluctuate greatly, it is easy to destroy the hydraulic balance of the magnetic pump, so that the sliding bearing bears large radial and axial forces and leads to bearing damage.

3. No medium or small flow of the transport medium: so that the bearing dry friction, burned bearings. The magnetic pump is lubricated and cooled by the conveying medium to the sliding bearing, in the case of no open inlet valve or outlet valve, the sliding bearing is lubricated and cooled by no conveying medium and leads to damage.

4. Pump problems caused by cavitation: pump cavitation is mainly due to large pump inlet pipe resistance, more gas phase of the transport medium, pump filling is not sufficient, pump inlet energy head is not enough, and other reasons. Cavitation is the most harmful to the pump, cavitation occurs when the pump vibrates violently, the hydraulic balance is seriously damaged, which will lead to pump bearing, rotor, or impeller damage. This is a common reason for the occurrence of magnetic pump failure.

Chemical magnetic pump viscosity issues.

1. The parameters on the general sample are the performance when conveying clear water when conveying viscous media should be converted (correction coefficients for different viscosities can consult the relevant conversion charts). For higher viscosity pulp, paste, and viscous liquid conveying, it is recommended to use a mortar pump.

2. The viscosity of the medium on the performance of the pump is great, when the viscosity increases, the pump head curve decreases, the head, and flow rate of the best working conditions fall, while the power rises, thus reducing efficiency.

Taicang magnetic pump Co., Ltd. was born in 1979. It cooperated with Shanghai Chemical Design Institute to form a unique core research project with magnetic drive pump, and achieved great success. It has become the first company in China to comprehensively design and produce magnetic drive pump. Today, Taicang magnetic pump Co., Ltd. has become a leading manufacturer of magnetic drive pumps in China, with many patents and 12 utility model patents.