The first three methods all need to add a jacket on the kettle body to obtain high temperature. Because of the large range of temperature change, the jacket and shell of the kettle bear the temperature change and produce temperature difference pressure. When electric heating is used, the equipment is light and simple, the temperature is easy to adjust,winterization filtration, and there is no need for pumps, furnaces, chimneys and other facilities. It is also very simple to start, with low risk and low cost. However, the operation cost is higher than other heating methods, and the thermal efficiency is below 85%. Therefore, it is suitable for places where the heating temperature is below 400 ℃ and the price of electric energy is low. 5 Carbon steel reactor It is suitable for the environment without corrosive liquid, such as the processing of some oil products. 6 Stainless steel reactor With excellent mechanical property, it can work under high pressure and bear the impact of massive solid materials. Good heat resistance, wide working temperature range (-196-600 ℃), no oxygen peeling at higher temperature,50l rotovap, and can be used for direct open fire heating. It has high wear resistance and corrosion resistance. The heat transfer effect is good, and the heating and cooling speed is fast. Has excellent processing performance, can be made into reaction kettles with different shapes and structures according to different process requirements, and can also be polished. 7 Glass-lined reaction kettle The glass containing high silicon dioxide is lined on the inner surface of a steel container and firmly adhered to the metal surface by high temperature burning to form a composite material product. Therefore, the glass-lined reaction kettle has the dual advantages of the stability of glass and the strength of metal, and is an excellent corrosion-resistant equipment. 8 Steel lined reactor Steel is used as the substrate for lining, such as a layer of steel pipe outside, which can be lined with rubber, plastic, etc., to achieve the inevitable problems of pure steel, such as corrosive media, high temperature or low temperature media. There are common steel-lined PE reactors, steel-lined ETFE reactors and so on. Steel lining PE reactor, the lining material is polyethylene, suitable for liquid food and medicine extraction. The steel lining ETFE reactor is made of ethylene-tetrafluoroethylene copolymer. This kind of reaction kettle has excellent anticorrosive performance and can resist various concentrations of acid, alkali, salt, strong oxidant, organic compounds and other chemical media with strong corrosiveness. Structure of kettle type reactor The kettle reactor is mainly composed of kettle body, jacketed glass reactor ,nutsche filter dryer, heat transfer device, stirring device, transmission device, shaft seal device and various process nozzles. 1 Kettle body The kettle body provides the space required by the reaction.and the cost is high. Service conditions of sealing device 6 Process nozzle Return to Sohu to see more Raw material inlet pipe (gray) Replacement air inlet pipe (blue) Replacement nitrogen inlet pipe (black) Cleaning water inlet pipe (green) Solid material inlet pipe (raw material, solid catalyst, etc.) Product discharge tube (gray) Inlet and outlet pipes of heat exchange medium (steam pipe is red) Responsible Editor: (function() { function getBrandHtml() { var brands = [],wiped film evaporator, html = ''; for(var i = 0; i < brands.length; i++) { var brand = brands[i]; if(brands.length i+1) { html+= ''+brand.name+''; } else { html+= ''+brand.name+'、'; } } return html; }; if(document.getElementById('linkBtn')){ document.getElementById('linkBtn').onclick = function() { $('#brands').removeClass('brand');$ ( '# tipInfo').text ( 'Real name responded'); $ ('#linkBtn').remove();$ ('.real-response .content').css('line-height', '20px');$ ('.real-response .time').css('line-height', '20px'); }; document.getElementById('brands').innerHTML = getBrandHtml(); }; })();。 toptiontech.com