Shail Vac Engineers

Thermo-compressor compresses the low pressure steam to the steam having the higher pressure by reclaiming the heat energy into the low pressure steam, which otherwise would have been wasted. With increase in the cost of energy and projected shortages of fuel oil feed stocks, there raises an accurate need for the conservation of our present resources. One among the best ways for fuel conservation is reclamation and reuse of valuable heat energy from processing operations. The working principle of thermo-compressor is similar to an ejector, where the motive steam is passed through the nozzle and low pressure steam is entrained into the suction chamber. Both the steams are then released at an intermediate designed pressure.The mixed flow of both the steam from converging section of the diffuser increases the pressure by decreasing their velocity. Then at some point in the diffuser throat, mixture travel at the speed of sound. Again in the diverging section of the diffuser, as the cross sectional area increases, the speed of the mixture further decreases with increase in the discharge pressure. The net result of the energy transformations in the thermo-compressoris an increase of the absolute pressure of the mixture on discharge to several times the pressure at which it entered the ejector inlet.

Application:

• Paper: Compensating for changes in temperature and discharge pressures of steam dryers while reclaiming waste stream.
• Pharmaceutical: Reclaiming the waste stream from vacuum drying heat-sensitive chemicals.
• Food: Recovering vapours removed from food during the concentration process.
• Chemical & Petrochemical: Reclaiming vapours from dryers, stills, strippers, and deodorizers.
• Thermo-compressor systems can be used in numerous other applications where low pressure steam (either from a process, a flash vessel, or turbine exhaust) is available and boosted to a usable pressure by using high pressure motive steam.
• Multiple Effect Evaporators: Thermo-compressors are used in evaporators to bring down the running cost and set the economy of the plant.

Advantages:

• No moving parts.
• Low initial cost and maintenance.
• It can be installed in any position.
• Simple in design and construction.
• Manufactured out of all machinable or castable materials.
• Due to high velocities are involved, mixing of dissimilar gases is possible.
• Safe for potentially explosive environments.
• Environmental friendly solution.
• Virtually silent operation.