Compabloc
welded plate heat exchanger service

Compabloc welded plate heat exchangers provide compact heat transfer for demanding industrial processes involving heating, cooling, condensation, reboiling and heat recovery. The welded plate pack eliminates interplate gaskets from the process channels while removable side panels provide access for inspection and cleaning.

Surya Sankara Trading Pvt. Ltd. is an Authorised Distributor for Alfa Laval products, supporting Compabloc product enquiries and application discussions for customers in Hyderabad, Telangana and other South Indian locations.

What Is a Compabloc Welded Plate Heat Exchanger?

Compabloc is a welded plate-and-block heat exchanger developed for demanding process and utility duties. Its heat-transfer core consists of corrugated plates welded together to create alternating flow channels for the hot and cold media.

The welded plate pack is enclosed within a strong rectangular frame. Removable side panels provide access to the flow channels for inspection and appropriate mechanical cleaning.

Compabloc does not use interplate gaskets within the heat-transfer channels. However, panel gaskets may be present as part of the external removable-panel construction. Material and configuration selection depends on the process fluids and specified operating conditions.

How Does a Compabloc Heat Exchanger Work?

The hot and cold media flow through alternating channels formed by the welded corrugated plates. Heat transfers across the plate walls while the two fluid streams remain separated.

The plate corrugations promote turbulence and help distribute the fluids across the heat-transfer surface. Internal baffles can create an appropriate number of passes to balance thermal performance, pressure drop and flow velocity.

The flow arrangement is selected for the required heating, cooling, condensation, reboiling or heat-recovery duty.

Compabloc Heat Exchanger Applications

Depending on the selected configuration, Compabloc may be considered for:

• Process heating and cooling

• Industrial heat recovery

• Steam heating duties

• Liquid-to-liquid heat transfer

• Process condensers

• Reflux condensers

• Two-pass condensers

• Reboilers

• Gas cooling

• Duties involving aggressive process media

• Applications with limited installation space

Every duty requires application-specific thermal and mechanical evaluation.

Industries Using Compabloc Technology

Compabloc welded plate heat exchangers can be evaluated for appropriate duties in:

• Chemical processing

• Petrochemical plants

• Oil and gas processing

• Refineries

• Fertiliser manufacturing

• Pulp and paper

• Energy and utilities

• Pharmaceutical and API manufacturing

• Industrial heat-recovery systems

• Other process industries with demanding thermal duties

The appropriate Compabloc model, construction material and configuration depend on the process conditions and industry requirements.

Benefits of Compabloc Welded Plate Heat Exchangers

Compact construction

The corrugated welded plate pack provides a large heat-transfer surface within a comparatively compact footprint. This can be useful for plant upgrades and installations where space is limited.

Suitable for demanding process duties

Compabloc configurations can be evaluated for aggressive media, high-temperature duties, pressure requirements and process conditions where conventional gasketed heat exchangers may not be appropriate.

No interplate gaskets

The process channels are formed by welded plates without interplate gaskets. This avoids the chemical and temperature limitations associated with elastomeric gaskets within the heat-transfer core.

Heat-recovery potential

Efficient counter-current heat transfer can support recovery of useful process heat. The practical energy-saving potential must be calculated from actual flow rates, temperatures, fluid properties, operating hours and utility costs.

Accessible cleaning

Removable side panels provide access to the channels for inspection and mechanical cleaning. Chemical-cleaning procedures may also be considered according to the deposits, materials and applicable manufacturer instructions.

Configurable flow arrangement

Internal baffles can be arranged to create suitable flow passes for the specified thermal duty and allowable pressure drop.

Compabloc Compared with Shell-and-Tube Heat Exchangers

Compabloc uses a compact welded plate pack, while a traditional shell-and-tube exchanger transfers heat through a bundle of tubes inside a shell.

The appropriate technology cannot be chosen from size or efficiency alone. Engineers must consider:

• Process-fluid compatibility

• Design temperature and pressure

• Thermal duty

• Allowable pressure drop

• Fouling and cleaning requirements

• Mechanical design standards

• Inspection requirements

• Installation space

• Maintenance strategy

• Lifecycle considerations

A Compabloc may offer advantages for suitable high-efficiency and space-constrained duties, but each application requires individual evaluation.

Materials and Configuration

Available construction materials depend on the model, process fluid and operating requirements. Potential material options may include suitable stainless steels, titanium and nickel-based or other pressable and weldable alloys.

Material selection should consider:

• Fluid composition

• Concentration

• Contaminants and impurities

• Operating and design temperatures

• Operating and design pressures

• Corrosion risk

• Cleaning chemicals

• Erosion and fouling conditions

• Applicable pressure-vessel requirements

Final material selection must be confirmed against complete process information.

Information Required for Compabloc Selection

Customers should provide:

• Names and compositions of both fluids

• Flow rates

• Inlet and required outlet temperatures

• Operating and design temperatures

• Operating and design pressures

• Allowable pressure drop on both sides

• Physical properties of the fluids

• Phase-change information

• Fouling and scaling tendency

• Corrosion considerations

• Required construction materials

• Cleaning method

• Applicable design code

• Nozzle and connection requirements

• Available installation and maintenance space

• Operating hours and load variations

For condensers and reboilers, vapour composition, non-condensable gases, operating pressure and phase-change requirements must also be supplied.

Cleaning and Maintenance Considerations

Compabloc maintenance should be planned according to fluid characteristics, fouling behaviour, operating history and the applicable Alfa Laval documentation.

A maintenance programme may include:

• Monitoring temperatures and pressure drop

• Inspecting for evidence of leakage

• Reviewing declining thermal performance

• Suitable chemical cleaning

• Opening the side panels for inspection

• Mechanical cleaning where appropriate

• Inspection of panels, gaskets and fasteners

• Condition assessment during planned shutdowns

Cleaning chemicals, tools and procedures must be compatible with the exchanger materials and deposits.

Compabloc Heat Exchanger Support in Hyderabad and South India

Surya Sankara Trading Pvt. Ltd. is an Authorised Distributor for Alfa Laval products, supporting Compabloc welded plate heat exchanger enquiries from Hyderabad, Telangana and other South Indian locations.

Process industries can provide their thermal and mechanical data for an initial application discussion. Product selection should be based on the actual process duty, operating conditions, material compatibility, fouling tendency, cleaning requirements and applicable design standards.

Frequently Asked Questions About Compabloc

What is a Compabloc welded plate heat exchanger?

Compabloc is a compact welded plate-and-block heat exchanger used for demanding heating, cooling, condensation, reboiling and heat-recovery duties. Its corrugated plates are welded together to form alternating flow channels within a rectangular frame.

Is Compabloc a fully welded heat exchanger?

The heat-transfer plate pack is welded and does not use interplate gaskets in the process channels. The external construction includes removable panels, which may use panel gaskets and provide access for inspection and cleaning.

How does a Compabloc heat exchanger work?

Hot and cold media flow through alternating channels formed by welded corrugated plates. Heat passes through the plate walls without mixing the fluids. Internal baffles can direct the media through multiple passes according to the required duty.

What applications are suitable for Compabloc?

Potential duties include process heating, cooling, heat recovery, steam heating, condensation, reflux condensation, reboiling and gas cooling. Suitability depends on fluid properties, temperature, pressure, corrosion, fouling and cleaning requirements.

Can Compabloc handle aggressive fluids?

Compabloc may be configured using materials suitable for certain aggressive fluids. However, compatibility depends on concentration, temperature, pressure, impurities and cleaning conditions. A corrosion and material review is required before selection.

Can Compabloc be used for heat recovery?

Yes, Compabloc can be considered for suitable industrial heat-recovery duties. Expected recovery and savings must be calculated using actual process temperatures, flow rates, fluid properties, operating hours and allowable pressure drop.

How is a Compabloc heat exchanger cleaned?

Depending on the deposits and configuration, cleaning may involve a suitable chemical-cleaning procedure or mechanical cleaning after removing the side panels. Applicable Alfa Laval instructions and material-compatibility requirements must be followed.

What is the difference between Compabloc and a gasketed plate heat exchanger?

A gasketed plate heat exchanger uses elastomeric gaskets between individual plates. Compabloc uses a welded plate pack without interplate gaskets in the process channels, making it suitable for certain duties beyond the practical limits of conventional gasketed units.

What is the difference between Compabloc and a shell-and-tube exchanger?

Compabloc transfers heat through corrugated welded plates, while shell-and-tube equipment uses tubes enclosed within a shell. The better choice depends on process conditions, pressure, temperature, fouling, cleaning, installation space and mechanical requirements.

What application data is needed for Compabloc selection?

Selection requires fluid compositions, flow rates, inlet and outlet temperatures, design pressures and temperatures, allowable pressure drops, physical properties, fouling information, material requirements, cleaning procedures and applicable design codes.

Where can I enquire about Compabloc heat exchangers in Hyderabad?

Industries in Hyderabad, Telangana and South India can contact Surya Sankara Trading Pvt. Ltd., an Authorised Distributor for Alfa Laval products, for Compabloc product enquiries and initial application discussions.

Discuss Your Compabloc Application

Contact Surya Sankara Trading Pvt. Ltd. with your process temperatures, flow rates, pressures, fluid compositions, allowable pressure drops and material requirements. Complete application information will support a more accurate evaluation of the appropriate welded heat-exchanger solution.