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Some knowledge points of graphite cooler
Release time:
2022-09-30
Graphite cooler manufacturers believe that hydrogen lvide is a by-product of the production of cyclic yang chloropropane, which is absorbed by water as hydrochloric acid, which is highly corrosive and greatly shortens the service life of metal heat exchangers. Therefore, in the production of cyclic yang chloropropane, the heat exchanger related to lv chemical hydrogen medium adopts graphite heat exchanger with high corrosion resistance.
Graphite cooler manufacturers believe that hydrogen lvide is a by-product of the production of cyclic yang chloropropane, which is absorbed by water as hydrochloric acid, which is highly corrosive and greatly shortens the service life of metal heat exchangers. Therefore, in the production of cyclic yang chloropropane, the heat exchanger related to lv hydrogen medium adopts graphite heat exchanger with high corrosion resistance.
Graphite cooler manufacturers believe that graphite heat exchanger can not only effectively exchange heat and reduce energy consumption, but also improve the production of related materials, thus reducing material consumption. Its application in the production of cyclic yang chloropropane not only saves the steam consumption of cyclization reaction tower, but also improves the reaction yield of dichloropropane. Graphite of the same thickness has less thermal resistance than stainless steel and has a stronger heat transfer capacity. Although the thermal resistance of the tube wall in the heat transfer process is much smaller than that of the fluid and fouling, this effect is sometimes not negligible.
Graphite cooler manufacturers believe that even corrosion-resistant alloys, the corrosion rate in strong corrosive media such as hydrochloric acid is only 0.1 mm/a, and the corrosion rate of graphite is almost zero. Therefore, in a strong corrosive environment, graphite heat exchanger life is significantly higher than metal heat exchanger.
Graphite cooler manufacturers believe that although the graphite heat exchanger cost is higher, but from the use of graphite heat exchanger, none of the heat exchanger due to corrosion caused by heat exchanger tube leakage and scrapped, the cause of damage is mostly accidental damage. However, even in other media conditions, metal heat exchangers are often required to plug leaks in acidic media operation, but also requires frequent replacement, which can cause frequent stops. As can be seen, graphite heat exchanger is not only good heat transfer, and high corrosion resistance, long service life. However, preventing the device from stopping due to frequent blockage or replacement of the heat exchanger can make the chemical plant long-term safe and stable operation, which is worth promoting in the chemical and petrochemical industry.
Graphite cooler manufacturers believe that in the transportation and installation process, graphite heat exchanger should be lightly held and placed, and shall not collide with the ground or other hard substances, and shall not be hit by hard objects. In the process of starting and stopping, should follow the "careful and slow" principle.
Graphite cooler manufacturers believe that the equipment should open the circulating water outlet venting valve, and then open the circulating water outlet and inlet connection between the valve, slowly open the inlet valve to control the flow. Stop: slowly close the inlet valve, then close the outlet valve, open the anti-shower valve and exhaust valve, and exhaust all the cooling water accumulated in the heat exchanger. Exhaust the air from the equipment before putting it into service. Open and close the inlet valve slowly. In winter, drain all circulating water from the heat exchanger to prevent freezing. During operation, the operating pressure should not fluctuate abnormally. Once fluctuations are detected and cannot be eliminated immediately, consider removing the equipment or shutting down the system.
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BETTERS' GRAPHITE
Company Address:
No. 16, Jiangtong North Road, Gangzha District, Nantong City, Jiangsu Province
Contact: MR.He
Mobile: 86-13348070880
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