A vertical magnetic drive multi-seal submerged slurry delivery pump

Abstract

The invention provides a slurry transmitting pump under vertical magnetic driving multiple sealing liquid. An upper separating sleeve, a guiding body shaft sleeve, a lower separating sleeve and an impeller are sequentially arranged from top to bottom on an axial guiding body segment of a pump shaft, blind holes are formed in the lower end surface of the upper separating sleeve and the upper end surface of the lower separating sleeve, the guiding body shaft sleeve is arranged inside the blind holes of the upper separating sleeve and the lower separating sleeve, a sliding bearing is arranged between an inner hole of the axial guiding body and the guiding body shaft sleeve, a sliding bearing pressing cover is arranged under the sliding bearing, the sliding bearing pressing cover and the end surface of the inner hole of the axial guiding body are connected, a leakage detecting device is arranged on the right side of a leakage detecting pipe, and a movable ring adjusting sleeve, a rotating ring, an axial sealing wheel and two round nuts C are sequentially arranged from top to bottom at the bottom part of the leakage detecting pipe of the pump shaft. The slurry transmitting pump is reasonable in structure, the vibration and the noise of the pump during operation are lowered, the stability and the reliability of the pump during operation are improved, the installing and the maintaining are convenient, the temperature of medium transmitted by the pump is improved, the service life of the bearing for the pump is prolonged, and the pump is 100% sealed without leakage.

Description

technical field [0001] The invention relates to a vertical magnetic drive multi-sealed submerged slurry delivery pump, which is used for transporting toxic and harmful media, high Solid particle medium, medium with high gas content, medium close to boiling point, medium containing toxic gas, flammable and explosive medium and corrosive medium, especially suitable for fine and coarse titanium tetrachloride slurry in sponge titanium industry and other industrial, mining and chemical industries It is the ideal vertical submerged conveying equipment with no seal and 100% no leakage for the conveyance of various slurries and liquid sulfur media and the working conditions that require dry operation. Background technique [0002] At present, the fields of petroleum, chemical industry, refining, metallurgy, mining, pharmaceuticals, acid production, printing and dyeing, food and other fields transport poisonous, solid particle-containing media, toxic gas media, and media close to boi...

AI Technical Summary

Problems solved by technology

The above three patented products of our company and various types of slurry delivery pumps produced by other pump factories have no sliding bearing at the lower end of the delivery pump, and the length of the cantilever at the shaft extension end is long, which is prone to vibration and noise during operation. The depth does not exceed 1.5 meters, and it can only transport general slurry media. If the working condition of sealing is required, it must be equipped with a mechanical seal. The mechanical seal is a vulnerable part and needs to be replaced frequently. It is difficult to install and maintain, and the maintenance cost is very high; for Our company applied for the invention patent of magnetic pump on June 17, 2009 (application number: 200910032498.9), and found the following problems in the actual use and operation of users: 1) The vortex chamber of the pump body is unreasonably set, and the impeller The cantilever is long without sliding bearing support, so the pump will generate a large radial force during operation, which will cause the pump to generate large vibration and noise, and at the same time, some parts will be damaged due to wear and tear due to large vibration; 2), the pump There is no sealing device for the rolling bearing at the lower part of the bearing seat, which is easy to cause the conveying medium to enter the bearing, causing the bearing to wear out and become stuck and unable to operate; , Bearing housing and related sealing gaskets fail, the pump cannot operate normally, and defensive leak detection and alarm cannot be carried out, which will cause greater losses to the pump, and in severe cases, the entire production line will be shut down, especially for Inflammable, explosive, toxic, and harmful media leak or stop production during transportation, which will cause serious environmental pollution, seriously affect personal safety, and even have other unimaginable serious consequences; 4) The pump bearing seat is designed as an overall structure , it is inconvenient to install, adjust and maintain. At the same time, it cannot be cooled when transporting medium with high temperature, which will shorten the service life of the rolling bearings used in the pump, and make the service life of the pump operation cycle very short.

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