Multi-function clip hot swap form of dispersed reaction kett
Multi-function dispersion of heat transfer in the reaction kettle jacketed generally made of plain carbon steel, it is a set of outside the reactor cylinder form sealed space of container, namely simple and convenient. Jacket is equipped with steam, cooling water, or other import and export of heating and cooling medium. (if the heating medium is water vapor, the inlet pipe should be close to the upper jacket, and condensate from the bottom of the discharge; if the heat transfer medium is liquid,
The inlet pipe should be placed at the bottom, the liquid from the bottom to enter, flux, the heat transfer medium is full of the whole space of the jacket. Sometimes, for larger container, in order to get good effect of heat transfer in the jacketed space a spiral guide plate, and to minimize the flow of fluid in jacketed area, increase the speed of fluid flow and avoid the short circuit, but the structure is more complicated.
When the kettle larger diameter or use of the heat transfer medium pressure is high, and often semicircle spiral welding pipe or spiral Angle steel structure, in lieu of jacketed type structure. In this way, not only can improve the heat transfer medium flow rate, improve the heat transfer effect, and can improve the reactor outside the compressive strength and stiffness.
In order to improve the heat transfer efficiency, in the top of the jacket has no non-condensable gas discharge. Jacket with distance depending on the container body the size of the nominal diameter using different numerical, generally take 25 ~ 100 mm. Jacketed height depends on the heat transfer area, and heat transfer area is determined by the technological requirements. But must pay attention to is jacketed highly generally not less than the height of the material liquid,
Higher than the device level within 50 ~ 100 mm or so, to ensure sufficient heat transfer. With the increase of the reactor volume, heat transfer problems appear suddenly, jacketed alone is not enough, often to set additional baffle heat transfer in the reactor. Heat transfer baffle can increase the heat transfer area, removing heat, and strengthens the mixing effect, the damage type vortex flow of control.
Structural type many, common D shape baffle damper, finger, bushing, circular tube, oval tube type baffle, etc. Baffle than jacketed heat transfer coefficient of heat transfer coefficient up to much, because the cooling water flow rate is large, thin wall, material on the surface of the baffle to coefficient is big, so the total heat transfer coefficient is bigger. But in the use of the heat transfer when the damper structure and cleaning to consider,
Asked all baffle under liquid surface, because the gas-liquid interface is an easy to scale.
