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A kind of inner wall coating for high temperature and high pressure hot water circulation pump
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A hot water circulation pump, high temperature and high pressure technology, applied in the direction of coating, etc., can solve the problems of liquid film damage on the end face of the mechanical seal, reduce the service life of the pump, and the impact of the pump, so as to improve the strength and adhesion, and improve the stability Effect
Active Publication Date: 2017-07-14
SANLIAN PUMP IND CO LTD
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Problems solved by technology
However, high-temperature hot water is prone to vaporization, causing damage to the liquid film on the end face of the mechanical seal, making the end face in a semi-dry or dry friction state, easily causing wear on the sealing surface, resulting in failure, and reducing the service life of the pump; , so the impact on the pump is greater, which will also reduce the service life of the pump
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Embodiment 1
[0022] An inner wall coating for high temperature and high pressure hot water circulating pumps, made of the following mass parts of raw materials:
[0025] (1) First disperse bentonite in ethanol, soak for 30 minutes, add nano-silica, then ultrasonically treat at 22kHz ultrasonic frequency and 100W power for 20min, microwave frequency 2450MHz, and microwave power 400W for 10min, filter and wash with water. It is dried in a dryer, and then pulverized into a powder with a particle size of less than 50μm by a pulverizer to obtain modified bentonite;
[0030] An inner wall coating for high temperature and high pressure hot water circulating pumps, made of the following mass parts of raw materials:
[0031] 95 parts of acrylic resin, 65 parts of amino resin, 13 parts of bentonite, 6 parts of nano silica, 18 parts of talc powder, 12 parts of zeolite powder, 9 parts of heavy calcium carbonate, 5 parts of carboxymethyl cellulose, 4 parts of palm wax , 35 parts of ethanol, 125 parts of water.
[0032] The preparation method of the coating of this example is the same as that of Example 1.
Embodiment 3
[0034] An inner wall coating for high temperature and high pressure hot water circulating pumps, made of the following mass parts of raw materials:
[0035] 100 parts of acrylic resin, 65 parts of amino resin, 15 parts of bentonite, 6 parts of nano silica, 18 parts of talc powder, 12 parts of zeolite powder, 10 parts of heavy calcium carbonate, 6 parts of carboxymethyl cellulose, 5 parts of palm wax , 40 parts of ethanol, 130 parts of water.
[0036] The preparation method of the coating of this example is the same as that of Example 1.
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Abstract
The invention discloses an inner wall coating for a high-temperature and high-pressure hot water circulating pump, and relates to the technical field of coating production. The coating is prepared from, by weight, 90-100 parts of acrylic resin, 60-70 parts of amino resin, 12-15 parts of bentonite, 5-8 parts of nanometer silica, 15-18 parts of talcum powder, 10-13 parts of zeolitepowder, 8-11 parts of heavy calciumcarbonate, 4-7 parts of carboxymethyl cellulose, 3-5 parts of palm wax, 30-40 parts of ethanol and 120-130 parts of water. The nanometer silica is used to modify bentonite, so prepared modified bentonite can effectively improve the stability of the coating, and improves the strength and the adhesion of a coating layer formed by using the coating; and the prepared coating is sprayed on the inner wall of the high-temperature and high-pressure hot water circulating pump to form a hard and compact coating layer, so the high-temperature and high-pressure hot water circulating pump can be used to convey 250-350DEG C particle-free high-pressure hot water or water-like liquid media.
Description
[0001] Technical field: [0002] The invention relates to the technical field of paint production, in particular to an inner wall paint for high temperature and high pressure hot water circulating pumps. [0003] Background technique: [0004] High temperature and high pressure hot water circulating pumps are widely used in metallurgy, electric power, textile, petroleum, chemical, rubber, heating and other system fields to transport high temperature and high pressure hot water and liquid media similar to water. In order to improve the heat utilization rate and meet the needs of the process equipment, most of the domestic advanced hot water forced circulation forms are currently used in the country. The temperature and pressure of the process circulating water are high, and the technical requirements for the circulating pump are getting higher and higher. High-temperature hot water is prone to vaporization, causing damage to the liquid film on the end face of the mechanical seal, leav...
Claims
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Application Information
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