Mechanical seal of multilayer sludge pump
A mechanical seal, slurry pump technology, applied in mechanical equipment, pumps, components of pumping devices for elastic fluid, etc., can solve the problems of burnt seals, poor sealing performance, medium leakage, etc., to prevent leakage , the effect of good sealing
Inactive Publication Date: 2012-10-03
苏瑞益
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AI Technical Summary
Problems solved by technology
Due to the high concentration and high pressure of the material conveyed through the pump body, the sealing performance of this single sealing structure is poor. During use, medium leakage often occurs, and lubricating oil or water cannot be injected. Due to the damage of the sealing surface, the seal Dry friction often occurs, so that the seal is burned and the medium leaks
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[0009] Such as figure 1 As shown, the mechanical seal of the multi-layer slurry pump in this embodiment includes a shaft sleeve 10, a connecting flange 7, a rear cover flange 2, an inner seal assembly and an outer seal assembly, and the inner seal assembly and the outer seal assembly are placed on the shaft sleeve 10. In the cavity formed by the connecting flange 7 and the rear cover flange 2; the inner seal assembly includes an inner static ring 3 and an inner dynamic ring 4, and the outer seal assembly includes an outer static ring 6 and an outer dynamic ring 9; the inner static ring 3 and the rear cover flange 2 are fixedly connected by screws (marked in the figure), the outer static ring 6 and the connecting flange 7 are provided with pin grooves (marked in the figure), and are connected together by pins 13; the inner moving ring 4 and The outer moving ring 9 is respectively placed on the steps in the same direction of the shaft sleeve 10 and rotates synchronously with the...
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A mechanical seal of multilayer sludge pump, comprises a sleeve, a connecting flange and a back cover flange, a cavity formed by the sleeve, the connecting flange and the back cover flange is provided with an inner seal assemble and an outer seal assemble, the inner seal assemble comprises an inner static ring and an inner movable ring, the outer seal assemble comprises an outer static ring and an outer movable ring, the inner static ring is fixedly connected with the back cover flange, the outer static ring is fixedly connected with the connecting flange, the inner movable ring and the outer movable ring are respectively arranged on the sleeve and synchronously rotate along with the sleeve, an inner spring and an outer spring are respectively arranged between the inner movable ring and the sleeve and between the outer movable ring and the sleeve, the inner movable ring, the outer movable ring, the inner static ring and the outer static ring are in the sliding seal fit, the connecting part of the inner movable ring and the sleeve and the connecting part of the outer movable ring and the sleeve are respectively provided with an O-shaped seal ring, the connecting part of the connecting flange and the back cover flange is provided with an O-shaped seal ring. The inner mechanical seal assemble and the outer mechanical seal assemble are arranged, when one mechanical seal assemble is damaged, the other mechanical seal assemble can be used for compensating, thus ensuring that the medium can not be leakaged under the high-pressure work environment. At the same time, the inner seal assemble is arranged, thus the leakage of lubricating oil and water can be effectively prevented, the dry friction of the movable and static rings can be prevented, the movable and static rings are always in the good seal state.
Description
technical field [0001] The invention relates to a slurry pump, in particular to a mechanical seal of the slurry pump. Background technique [0002] Slurry pumps are usually used for hydraulic transportation of materials in coal, metallurgy and other industries. The mechanical seal of the existing slurry pump is sealed by a set of sealing components. Due to the high concentration and high pressure of the material conveyed through the pump body, the sealing performance of this single sealing structure is poor. During use, medium leakage often occurs, and lubricating oil or water cannot be injected. Due to the damage of the sealing surface, the seal Dry friction often occurs, so that the seal is burned and the medium leaks. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mechanical seal of the slurry pump with better sealing performance, so as to further improve the mechanical seal performance of the slurry pump...
Claims
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IPC IPC(8): F04D7/00F04D29/10
Inventor 苏瑞益
Owner 苏瑞益