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Product description
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Block Heat exchanger - Flexible In Use
Graphite block heat exchangers have great flexibility and they can be used for all heat exchange and mass transfer processes involving corrosion media. This is why graphite block heat exchangers have been employed for decades in every branch of the organic and inorganic chemical industry. Our experience in the field of graphite productions and our expertise in heat exchangers offer you high quality graphite block heat exchangers which convincing advantages follows:
*Rapid replacement of blocks due to compact modular design
*Suitability for corrosive media on both service side and product side on design
*Easy maintenance due to gasketed but cement-free block joint.
*Increase of block heat exchanger transfer area by adding further block element
*Vertical orHorizontal operation
*Several passes
Because of these advantages graphite block heat exchangers are use in a variety of function:
*For cooling and heating of corrosive media
*For heat exchanger between two corrosive media as special design
*As forced and natural circulation evaporators
*For full and partial condensation
*For absorption with simultaneous cooling
Block Heat exchanger - Cylindrical
Graphite block heat exchangers of this design consist of graphite blocks that incorporate axial and radial passages. The blocks are assembled on a base plate to form a block column. All joint are appropriately gasketed.
The product flowing through the axial passages is collected in a top and bottom header at the heat exchanger inlet and
outlet. A steel shell firmly secured to the base plate surrounds the space around the block column. The joints between base plate and bottom header/steel shell are sealed with gasket.
The whole block column is secured by bracing the top pressure plate against the steel shell. The joint between the steel shell and the top header is sealed e.g. By an O-ring to allow free movement of the shell.
The difference in thermal expansion between graphite and steel is compensated for by helical compression springs.
As a rule, the corrosive medium flows through the axial passages. The service medium in the shell space passes through the horizontal passages. A flexible baffle cage produces forced flow deflection on the service side.
As a design variant for heat exchange between two corrosive media, special designs can be supplied on request with a suitable anti-corrosion coating of steel shell or graphite shell.
Cylindrical Block heat exchanger Series CBS / CBL
Series CBS
*The dimension between product passage and service passage is 3.5mm
*The maximum size of graphite blocks is 710mm
*The maximum area of CBS heat exchanger is 178㎡
*Maximum pressure of product side:0.7MpaG
*Maximum pressure of service side:1.0MpaG
*Maximum service temperature,depending on the medium, up to 200˚C
Series CBL
*The dimension between product passage and service passage is large than 5mm
*The maximum size of graphite blocks is 1600mm
*The maximum area of CBL heat exchanger is 800㎡
*Maximum pressure of product side:1.0MpaG
*Maximum pressure of service side:1.6MpaG
*Maximum service temperature,depending on the medium, up to 200℃
Material specification Steel components
Metallic material as specified in national standard as
*GB
*ASME
*AD specification
Graphite material
Impregnation Graphite
Seals
As required for a particular application
*PTFE
*Rubber
*Viton
Cylindrical Block Falling-film Absorber Series TYKX
Series TYKX
*Gas such as HCL and liquid such as weak acid flow into the top chamber of the integral isothermal falling-film absorber.
*Liquid film distribution block on the top of blocks.
*The hydrogen chloride gas is absorbed in weak acid to form hydrochloric acid of the required concentration
*The heat of absorption is removed by cooling water in the shell side
*Gas liquid separation chamber on the bottom of the absorber.
*The area of absorber is 1m 2~720㎡
*Maximum pressure of product side:0.7MpaG
*Maximum pressure of service side:1.0MpaG
*Maximum service temperature,depending on the medium, up to 200˚C
Material specificationSteel components
Metallic material as specified in national
standard as
*GB
*ASME
*AD specification
Graphite material
Impregnation Graphite
Seals
As required for a particular application
*PTFE
*Rubber
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