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Corrosion-resistant pump made from carbon/carbon composite materials

A carbon composite material and corrosion-resistant pump technology, which is applied to pumps for special fluids, components of pumping devices for elastic fluids, pumps, etc., can solve problems such as affecting popularization and application, narrow corrosion resistance range, and affecting service life. , to achieve the effect of simple forming process, good airtightness and avoiding corrosion

Active Publication Date: 2009-12-16
大连富鼎碳素装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the raw materials used and the forming process, its popularization and application are affected, and it cannot meet the actual needs in conveying high temperature and strong corrosive fluid media.
The existing FRP pump has a short service life, a narrow range of corrosion resistance, and the temperature of the conveying medium is limited to below 80°C
Although the ceramic pump can transport a higher temperature of the medium, it will be brittle and scrapped when the operating temperature changes suddenly, which will affect the service life

Method used

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  • Corrosion-resistant pump made from carbon/carbon composite materials

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Embodiment Construction

[0014] figure 1 In the schematic structural diagram of a corrosion-resistant pump made of carbon / carbon composite material shown, the device includes a pump body 1, an impeller 2, a first flat sealing gasket 3, a pump cover 4, a second flat sealing gasket 5, Mechanical seal (double seal) 6, drain pipe 7, sealing cover (double seal) 8, front baffle plate 9, front bearing cover 10, retaining ring 11, first rolling bearing 12, bearing nut 13, support foot 14, rear folding Flow plate 15, shaft 16, rear bearing cover 17, bearing frame 18, oil throwing ring 19, constant level oil cup 20, oil separator 21, second rolling bearing 22, shaft sleeve 23, sealing cover (single seal) 24, mechanical Seal (single seal) 25, first O-ring seal 26, second O-ring seal 27, first impeller mouth ring 28, pump cover mouth ring 29, second impeller mouth ring 30, pump body mouth ring 31, impeller The nuts 32 are connected to each other and combined to form the present invention.

[0015] The corrosion...

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Abstract

The invention relates to a corrosion-resistant pump made from carbon / carbon composite materials, comprising components, such as a motor, a transmission shaft, a pump bracket, a press cover, a pump body, a pump cover, an impeller, a mechanical sealer, and the like which are connected by utilizing a shaft coupling. The corrosion-resistant pump made from carbon / carbon composite materials is characterized in that carbon fibers are shortly cut into short cut wires of 0.5mm-5mm or the carbon fibers are ground into powder of 200-400 meshes, then the short cut wires or the powder is mixed with an adhesive to manufacture special mixed particles, then the mixed particles are doped with a parting agent, and the mixture is put into a mould, is heated, is molded, enters a carbonization furnace, is kept under a state without oxygen, is sintered, is finely processed and then is assembled with other components to obtain a product; the product can reach the tensile strength of 30.67MPa, the bending strength of 55.4MPa, the heat conductivity coefficient of 110kilocalorie / meter.hour.DEG C and the service life of 36 months; and under the condition of 300 DEG C, various fluid media with strong corrosiveness can be stably and continuously conveyed for a long time.

Description

technical field [0001] The invention relates to the field of chemical corrosion-resistant pumps, in particular to a corrosion-resistant pump made of carbon / carbon composite materials. Background technique [0002] Scientific and technological personnel and scientific research institutions in the field of chemical machinery in various countries, after decades of research and testing for the transportation of chemical liquid media, corrosion-resistant pumps came into being. However, there are still some key problems in corrosion-resistant pumps that have not been broken through for a long time. For example, the impeller pressure is only 1 / 2 of the front cover plate. The higher the lift, the greater the pressure and the greater the axial force, so that the pump can only It is used in the working conditions of low speed, low head and no inlet pressure; the inlet pressure is high, the axial force is large, and the bearing is easily damaged, so the application research of the pump...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D7/06F04D29/02
Inventor 曲振征
Owner 大连富鼎碳素装备有限公司
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