Acid-resisting and alkali-resisting industrial pump

A chemical pump, acid and alkali resistant technology, applied in the direction of pumps, pump components, non-variable pumps, etc., can solve the problems of material cost and production cost increase, cost increase, etc.

Active Publication Date: 2015-07-08
SHANGHAI LINKCHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the intricate characteristics of the chemical medium, coupled with the continuous improvement of user requirements, the material requirements for the pump flow parts are high, and the material requirements are high, so the material cost and production cost of the pump will increase, especially for some large pumps. is greatly improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An acid and alkali resistant chemical pump, which includes a pump body and an impeller installed inside the pump body. The pump body includes: an aluminum alloy pump body, a tungsten carbide ceramic material layer on the surface of the pump body, and boron oxide on the surface of the pump body. A ceramic material layer, the impeller includes a nickel-based alloy impeller body and a zirconia-based ceramic material layer outside the impeller body;

[0047] The chemical composition of the aluminum alloy pump body is (weight): Zn: 13%, Si: 8%, Cu: 4%, Ni: 2%, Ti: 0.8%, V: 0.6%, Cr: 0.6%, Mg: 0.3% , Y: 0.08﹪, Zr: 0.07﹪, Fe: 0.05﹪, Mn: 0.02﹪, the balance is Al and unavoidable impurities;

[0048] The preparation method of the aluminum alloy pump body includes the following steps: preparing the alloy according to the above ratio, melting the raw materials, and pouring: the melting temperature is 760°C, and the pouring temperature is 720°C; after demolding, the obtained pump bo...

Embodiment 2

[0061] An acid and alkali resistant chemical pump, which includes a pump body and an impeller installed inside the pump body. The pump body includes: an aluminum alloy pump body, a tungsten carbide ceramic material layer on the surface of the pump body, and boron oxide on the surface of the pump body. A ceramic material layer, the impeller includes a nickel-based alloy impeller body and a zirconia-based ceramic material layer outside the impeller body;

[0062] The chemical composition of the aluminum alloy pump body is (weight): Zn: 14%, Si: 9%, Cu: 5%, Ni: 3%, Ti: 0.9%, V: 0.7%, Cr: 0.7%, Mg: 0.4% , Y: 0.09%, Zr: 0.08%, Fe: 0.06%, Mn: 0.03%, and the balance is Al and unavoidable impurities;

[0063] The preparation method of the aluminum alloy pump body includes the following steps: preparing the alloy according to the above ratio, smelting the raw materials, and casting: the melting temperature is 770°C, and the pouring temperature is 725°C; after demoulding, the obtained p...

Embodiment 3

[0076] An acid and alkali resistant chemical pump, which includes a pump body and an impeller installed inside the pump body. The pump body includes: an aluminum alloy pump body, a tungsten carbide ceramic material layer on the surface of the pump body, and boron oxide on the surface of the pump body. A ceramic material layer, the impeller includes a nickel-based alloy impeller body and a zirconia-based ceramic material layer outside the impeller body;

[0077] The chemical composition of the aluminum alloy pump body is (weight): Zn: 13.5%, Si: 8.5%, Cu: 4.5%, Ni: 2.5%, Ti: 0.85%, V: 0.65%, Cr: 0.65%, Mg: 0.35% , Y: 0.085﹪, Zr: 0.075﹪, Fe: 0.055﹪, Mn: 0.025﹪, the balance is Al and unavoidable impurities;

[0078] The preparation method of the aluminum alloy pump body includes the following steps: preparing the alloy according to the above ratio, melting the raw materials, and pouring: the melting temperature is 765°C, and the pouring temperature is 723°C; after demoulding, the...

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Abstract

An acid-resisting and alkali-resisting industrial pump comprises a pump body and an impeller installed inside the pump body. The pump body comprises an aluminum alloy pump body and a tungsten carbide serial ceramic material layer arranged on the outer surface of the pump body and a boron oxide serial ceramic material layer arranged on the inner surface of the pump body, and the impeller comprises a nickel-based alloy impeller body and a zirconium oxide serial ceramic material layer arranged outside the impeller body; components of the aluminum alloy and the nickel alloy are simple, and strength requirements of the acid-resisting and alkali-resisting industrial pump can be achieved; surface treatment processes of acid pickling and passivating are conducted on the aluminum alloy and the nickel alloy with the components, the problem that black spots exist on any surface and other problems are avoided, and the surface cleanliness is achieved.

Description

technical field [0001] The invention relates to an acid and alkali resistant chemical pump, which belongs to the technical field of chemical equipment. Background technique [0002] The chemical industry occupies a very important position in the national economy, and chemical pumps, as key supporting equipment, have attracted more and more attention. Due to the intricate characteristics of the chemical medium, coupled with the continuous improvement of user requirements, the material requirements for the pump flow parts are high, and the material requirements are high, so the material cost and production cost of the pump will increase, especially for some large pumps. It is greatly improved. Contents of the invention [0003] The present invention proposes a chemical pump with anti-corrosion, high temperature resistance, anti-scaling and low cost aimed at the above problems: [0004] An acid and alkali resistant chemical pump, which includes a pump body and an impeller i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C21/10C22C1/02C23G1/12C23G1/10B32B15/04C23C22/56C23C22/58F04D29/02
CPCC04B35/01C04B35/48C04B35/5626C04B35/64C04B2235/3232C04B2235/3821C04B2235/3839C04B2235/3843C04B2235/3847C04B2235/3873C04B2235/3886C04B2235/6562C22C19/057C22C21/10C22F1/053C22F1/10C23C22/34C23C2222/20C23G1/10C23G1/125
Inventor 张金荣
Owner SHANGHAI LINKCHEM TECH CO LTD
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