Graphite heat exchanger is a very good heat exchanger. Tubular graphite heat exchanger is widely used in many fields. When we purchase and use graphite heat exchanger, we should understand the structure and principle of the graphite heat exchanger to ensure the use effect of the graphite heat exchanger. Today, we will introduce some structures and working principles of the graphite heat exchanger for you to understand.
According to its structure, graphite heat exchanger can be divided into three types: block hole type, tube shell type and plate type. Block hole type: It is assembled by several block graphite components with holes. Shell and tube type: shell and tube heat exchanger plays an important role in graphite heat exchanger, which can be divided into fixed type and floating head type according to structure. Plate: plate heat exchanger is made of graphite plate. In addition, there are immersion type, spray type and casing type (see coil type heat exchanger, casing type heat exchanger). 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 for block hole structure with good pressure bearing capacity, 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.
Structure description of tubular graphite heat exchanger
Classification of graphite heat exchanger According to its structure, graphite heat exchanger can be divided into three types: round hole type, shell and tube type and rectangular plate type.
1. Round block hole type: It is assembled by several block graphite components with holes.
2. Shell and tube type: shell and tube heat exchanger plays an important role in graphite heat exchanger, which can be divided into fixed type and floating head type according to structure.
3. Rectangular plate: plate heat exchanger is made of bonded graphite plates.
In addition, there are immersion type, spray type and casing type (see coil type heat exchanger, casing type heat exchanger)
