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Flow guiding shell of submerged pump

A diversion shell and submersible pump technology, which is applied to pumps, pump components, non-variable pumps, etc., can solve the problems of increased water resistance in the water flow channel, complex shape of the diversion shell, and reduced efficiency of the submersible pump. Reliability, abundant raw materials, and the effect of improving water intake efficiency

Inactive Publication Date: 2014-11-19
HOMTON ENTERPRISES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inner and outer walls of the diversion shell are mostly composite curved surfaces, usually made of cast iron. However, the shape of the diversion shell is relatively complicated, and the water-touching surface cannot be machined, so it is easy to cause rough surface, which increases the water resistance in the water flow channel. This in turn reduces the efficiency of the submersible pump

Method used

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  • Flow guiding shell of submerged pump
  • Flow guiding shell of submerged pump

Examples

Experimental program
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Embodiment

[0014] The diversion casing of the submersible pump in this embodiment is as follows: figure 1 and figure 2 As shown, it includes a shell and a bearing frame 2. The upper part of the shell is flange-shaped, and the lower part of the shell is provided with a boss 4. The bearing frame 2 is located below the inside of the shell; the shell includes a ceramic tube 1, a rubber layer, and 3 and metal layer 5. Resin glue is coated between the rubber layer 3 , the ceramic tube 1 and the metal layer 5 , and the resin glue can be epoxy resin glue or the like.

[0015] This embodiment utilizes the advantages that the surface of the ceramic tube 1 of the shell is smooth and easy to manufacture, and avoids the shortcomings of the rough surface of the guide shell made of cast iron, which is difficult to finish, thereby reducing the resistance of the water flow in the pipeline and improving the performance of the submersible pump. Inlet efficiency. A rubber layer 3 is coated on the outer ...

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Abstract

The invention relates to a flow guiding shell of a submerged pump and belongs to the technical field of submerged pumps. The flow guiding shell of the submerged pump comprises an outer shell body and a bearing frame. The upper portion of the outer shell body is in a flange shape. A boss is arranged on the lower portion of the outer shell body. The bearing frame is located on the lower portion of the interior of the outer shell body. The outer shell body comprises a ceramic tube, a rubber layer and a metal layer, wherein the ceramic tube, the rubber layer and the metal layer are attached to one another in sequence from inside to outside. By the adoption of the flow guiding shell, the water inflow efficiency of the submerged pump can be greatly improved.

Description

technical field [0001] The invention relates to a diversion shell of a submersible pump, which belongs to the technical field of submersible pumps. Background technique [0002] Existing submersible pumps are usually multi-stage vertical centrifugal pumps in which a motor and a water pump are combined. The water pump is composed of a centrifugal impeller and a diversion casing that is essentially a pump casing. When the submersible pump is in use, the impeller rotates at high speed, and the liquid in the submersible pump rotates with the blades. Under the action of centrifugal force, it flies away from the impeller and shoots outward. Slowly, the pressure gradually increases, and then flows out of the discharge pipe at the pump outlet. At this time, at the center of the blade, a vacuum low-pressure area without air and liquid is formed because the liquid is thrown to the surroundings. The liquid in the liquid pool flows into the submersible pump through the suction pipe und...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/44
Inventor 候潇寒张薇华陆俊芳张军
Owner HOMTON ENTERPRISES
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