Around us, there are more and more environmental protection equipment, because the pollution caused by production is becoming more and more serious. The appearance of environmental protection equipment for tubular graphite heat exchanger has also brought a lot of convenience and speed to our life. You should know that graphite has many unique characteristics, especially in the purification of this piece, it also plays a very important role. Graphite heat exchanger is one of the commonly used graphite equipment. We must pay attention to some matters when installing it, because incorrect installation is easy to damage it. Among the requirements for its installation location, the graphite heat exchanger should be placed on a support that meets the height requirements, and should be reliably balanced. In addition, drain valve shall be installed to prevent shutdown and accident. Installation of nuts: tighten the main bolts to make them compress each other to achieve the purpose of sealing. The sealing surface shall be specially protected. When tightening the main bolts, the specified tightening torque shall not be exceeded to restore good sealing performance. When tightening the bolts, they must be tightened symmetrically and several times in a diagonal manner. The force should be uniform. It is not allowed to tilt to one side to achieve a good sealing effect. It is easy to loosen the bolts after transportation and moving, so carefully check and adjust the equipment before installation.
With the rapid improvement of production level, more and more new materials begin to appear in our production. Many materials have their own characteristics, which are used in our production and have a very effective effect. Graphite should be familiar to everyone. It is found in many equipment and materials. Graphite heat exchanger is a kind of equipment for processing graphite materials. Its appearance meets the demand for graphite in the market. However, if a fault occurs, the characteristics of graphite will be greatly affected. When the problem of two-phase medium leakage occurs, first check whether there is a problem with the quality of graphite, and then check whether the adhesive of graphite heat exchanger is normal, whether there is dissolution, aging, and deterioration, Driving impact may come from heat or water hammer. Solution: the quality problem needs to be replaced, the adhesive needs to be glued again, the impact force needs to be balanced, and the water should be drained in advance. The fracture Z of graphite tube may be the problem that the feeding speed of starting and stopping equipment is fast during operation. Solution: ensure smooth operation. The system vibrates greatly and the material flow is not smooth, leading to unstable operation. Solution: Adjust the balance between materials and system operation before operation. As long as the problem is found, it is easy to solve the failure of the graphite heat exchanger and treat the problem correctly.
Graphite is a material with good performance, so graphite based process equipment is widely used in our life. As one of them, graphite heat exchanger is popular. Graphite heat exchanger has good corrosion resistance, heat transfer surface is not easy to scale, and heat transfer performance is good. However, graphite is easy to embrittlement and has low bending and tensile strength, so it can only be used for low pressure. Even if the block hole structure with good bearing capacity Z is used, its working pressure is generally only 0.3~0.5 MPa. Graphite heat exchanger has high cost, large volume and little use. It is mainly used for heat exchange of corrosive media such as hydrochloric acid, sulfuric acid, acetic acid and phosphoric acid, such as condenser of acetic acid and acetic anhydride. Generally, there are three reasons for the leakage of graphite heat exchanger. First, problem Z may occur on the phenolic graphite profiled tube body. When the tube body is found to have cracks, roughness, sand holes and other conditions, the problem can be determined. It is precisely because of these surface phenomena that the tube body is poor in quality. Under various external pressures during operation, the tube body cannot be used normally, resulting in tube body leakage.
