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Oil delivery pump for oil refinery

A technology for oil refineries and oil delivery pumps, applied to pumps, components of pumping devices for elastic fluids, pump components, etc., can solve the problems of broken ceramic sleeves, low impact resistance, unfavorable long-term oil delivery operations, etc. , to achieve simple ingredients and improve the effect of anti-corrosion

Inactive Publication Date: 2015-07-01
张小平 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to prolong the service life of the oil pump, the current solution is to lay segmented sintered ceramic sleeves on the inner wall of the oil pump barrel and the outer wall of the plunger. Although this improvement is excellent in wear resistance, high temperature resistance, and corrosion resistance , but the ceramic sleeve is prone to breakage, cracking and dislocation, and its impact resistance is low, which affects the performance of the oil delivery pump and is not conducive to long-term oil delivery operations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] An oil transfer pump for an oil refinery, comprising a pump body and an impeller installed inside the pump body. The impeller includes an aluminum alloy impeller body and a zirconium carbide ceramic material layer outside the impeller body; the pump body includes: a copper alloy pump Body, the alumina ceramic material layer on the outer surface of the pump body and the boron carbide ceramic material layer on the inner surface of the pump body,

[0046] It is characterized in that the chemical composition of the aluminum alloy impeller body is (weight): Cu: 12%, Ni: 10%, Si: 7%, Zn: 4%, Cr: 1%, V: 0.6%, Ti: 0.4%, Mg: 0.3%, Ce: 0.07%, Zr: 0.07%, Fe: 0.05%, Mn: 0.02%, the balance is Al and unavoidable impurities;

[0047] The preparation method of the aluminum alloy impeller body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: melting temperature: 770℃, pouring temperature is 720℃; after demolding, the obta...

Embodiment 2

[0060] An oil transfer pump for an oil refinery, comprising a pump body and an impeller installed inside the pump body. The impeller includes an aluminum alloy impeller body and a zirconium carbide ceramic material layer outside the impeller body; the pump body includes: a copper alloy pump Body, the alumina ceramic material layer on the outer surface of the pump body and the boron carbide ceramic material layer on the inner surface of the pump body,

[0061] It is characterized in that the chemical composition of the aluminum alloy impeller body is (weight): Cu: 13%, Ni: 11%, Si: 8%, Zn: 5%, Cr: 2%, V: 0.7%, Ti: 0.5%, Mg: 0.4﹪, Ce: 0.08﹪, Zr: 0.08﹪, Fe: 0.06﹪, Mn: 0.03﹪, the balance is Al and unavoidable impurities;

[0062] The preparation method of the aluminum alloy impeller body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: melting temperature: 780℃, pouring temperature is 725℃; after demolding, the obta...

Embodiment 3

[0075] An oil transfer pump for an oil refinery, comprising a pump body and an impeller installed inside the pump body. The impeller includes an aluminum alloy impeller body and a zirconium carbide ceramic material layer outside the impeller body; the pump body includes: a copper alloy pump Body, the alumina ceramic material layer on the outer surface of the pump body and the boron carbide ceramic material layer on the inner surface of the pump body,

[0076] It is characterized in that the chemical composition of the aluminum alloy impeller body is (weight): Cu: 12.5%, Ni: 10.5%, Si: 7.5%, Zn: 4.5%, Cr: 1.5%, V: 0.65%, Ti: 0.45%, Mg: 0.35﹪, Ce: 0.075﹪, Zr: 0.075﹪, Fe: 0.055﹪, Mn: 0.025﹪, the balance is Al and unavoidable impurities;

[0077] The preparation method of the aluminum alloy impeller body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: melting temperature: 775℃, pouring temperature is 723℃; after de...

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Abstract

The invention relates to an oil delivery pump for an oil refinery. The oil delivery pump for the oil refinery comprises a pump body and an impeller arranged in the pump body, wherein the impeller comprises an aluminum alloy impeller body and a zirconium carbide system ceramic material layer outside the impeller body; the pump body comprises a copper alloy pump body, an aluminum oxide system ceramic material layer on the outer surface of the pump body, and a boron carbide system ceramic material layer on the inner surface of the pump body; the compositions of aluminum alloy and copper alloy are simple so as to meet the strength requirement of the oil pump; surface treatment procedures such as acid pickling and passivating are carried out on the aluminum alloy and the copper alloy with the compositions, so that the problems that any surface dark spots occur and the like are avoided, and the surface cleanliness is acquired.

Description

Technical field [0001] The invention relates to an oil transfer pump for an oil refinery, which belongs to the technical field of manufacturing equipment for an oil refinery. Background technique [0002] The quality of the oil pump is becoming more and more important. The most susceptible damage during use is corrosion, abrasion and sand sticking. The service life of oil pumps is getting shorter and shorter, and the cost of oil transportation is increasing year by year. In order to prolong the service life of the oil transfer pump, the current solution is to lay segmented sintered ceramic sleeves on the inner wall of the oil transfer pump barrel and the outer wall of the plunger. This improvement is excellent in terms of wear resistance, high temperature resistance, and corrosion resistance. , But the ceramic sleeve is prone to breakage, cracking and misalignment, and its impact resistance is low, which affects the performance of the oil pump and is not conducive to long-term o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/18C22C1/02
CPCC04B35/10C04B35/5622C04B35/563C04B35/62222C04B2235/3813C04B2235/3817C04B2235/3826C04B2235/3839C04B2235/3843C04B2235/3847C04B2235/3852C04B2235/3886C22C9/01C22C21/14C22C21/16C22C21/18C22F1/057C22F1/08C23C22/34C23C22/44C23C2222/20C23G1/103C23G1/125F04D29/02F04D29/026
Inventor 陈思
Owner 张小平
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