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Wear-resistant and corrosion-resistant mouth ring device for water pump

A corrosion-resistant, mouth-ring technology, which is applied to parts, pumps, and pump components of pumping devices for elastic fluids, can solve problems such as flow reduction, reduce impact pressure, improve wear resistance, and improve corrosion resistance The effect of wear-resistant performance

Active Publication Date: 2020-09-11
新乡市中机工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the gap between the mouth ring is too small, the flow rate of the pump will be reduced, and in severe cases, the flow rate will not be increased.

Method used

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  • Wear-resistant and corrosion-resistant mouth ring device for water pump
  • Wear-resistant and corrosion-resistant mouth ring device for water pump
  • Wear-resistant and corrosion-resistant mouth ring device for water pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0040]The embodiment is specifically: when a large amount of fluid passes through the mouth ring body 9 under the condition of high-speed flow, a strong impact pressure will be formed on the inner wall of the mouth ring body 9. Since the mouth ring body 9 adopts a multi-layer structure, and the first outer surface The toughness of the buffer layer 11 and the first inner buffer layer 15 is less than the toughness of the second outer buffer layer 12 and the second inner buffer layer 14, when the first outer buffer layer 11 and the first inner buffer layer 15 are subjected to impact pressure, a certain deformation, so as to feed back to the second outer buffer layer 12 and the second inner buffer layer 14 for buffer dilution, and then the second outer buffer layer 12 and the second inner buffer layer 14 conduct the force of deformation to the memory metal material. The connecting rod 13 makes the connecting rod 13 dilute and buffer the remaining impact force, thereby reducing the ...

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Abstract

The invention discloses a wear-resistant anti-corrosion impeller ring device for a water pump, and particularly relates to the technical field of water pumps. The wear-resistant anti-corrosion impeller ring device comprises an impeller, wherein the impeller comprises a front closing plate and a rear closing plate; a mounting hole is formed in the rear closing plate; impeller blades are arranged between the front closing plate and the rear closing plate; a connecting pipe is arranged on the front side wall of the impeller; drainage troughs are formed in the outer wall of the connecting pipe; animpeller ring device is connected to an end portion of the connecting pipe and comprises an impeller ring body with a threaded groove formed in the outer wall; the impeller ring body comprises a first outer buffer layer; and a second outer buffer layer is arranged on the inner wall of the first outer buffer layer. According to the wear-resistant anti-corrosion impeller ring device, the impeller ring body can be restored by self-toughness after a fluid stops flowing, such that the wear resistance of the impeller ring body is improved. Since the internal structure of the impeller ring body cannot be damaged, the impeller ring body cannot be corroded easily. Thus, the wear resistance and the corrosion resistance of an impeller ring are improved.

Description

technical field [0001] The invention relates to the technical field of water pumps, and more specifically, the invention relates to a wear-resistant and corrosion-resistant lip ring device for water pumps. Background technique [0002] The mouth ring generally refers to the impeller mouth ring, which is an annular metal ring installed between the pump impeller and the pump body. Its main function is to prevent the outlet medium from flowing back to the inlet medium, that is, the sealing function (so there is a "sealing ring" A name); at the same time, it also plays a wear-resistant role, avoiding direct contact damage between the impeller and the pump casing, and protecting the impeller [0003] The function of the water pump mouth ring is to form a narrow and tortuous channel between the impeller and the pump casing to increase the flow resistance of the medium and reduce the leakage of the medium. The setting of the mouth ring of the water pump also protects the main part...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/22F04D29/08F04D29/66
CPCF04D29/086F04D29/2294F04D29/669
Inventor 李付伟
Owner 新乡市中机工业有限公司
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