Shail Vac Engineers
Sayan, Surat, Gujarat
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Steam Jet Refrigeration System

Our range of products include steam jet refrigeration system.

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Product Details:
MaterialStainless Steel
Material GradeSS304, SS316, SS316L, SS316Ti, SS2205
Water Vaporize100-170 Deg C
Atmospheric pressure14.7 psia
Water11.25 lbs/hr
Extracted12,000 btu/hr

High pressure steam is supplied to the steam ejector from the boiler and it is expanded. Here, the water vapor originated from the flash chamber is entrained with the high velocity steam jet and it is further compressed in the thermo compressor. In the steam jet refrigeration system, the pressure inside the chill tank compartments will be reduced by a series of steam jet boosters, to a pressure corresponding to the saturation temperature of the chilled water required and steam jet boosters are sized accordingly to remove the calculated amount of water vapour evaporated for the required tonnage of refrigeration. The booster compresses the vapour by the help of a motivating steam to the desired discharge pressure, where it can be easily condensed in the direct contact type condenser with 32 °C cooling water. The non-condensable gases dissolved in the chilled water and system air leakages, are handled by the vent group ejectors. The condensate is usually returned to the boiler. Generally, 1% evaporation of water in the flash chamber is sufficient to decrease the temperature of chilled water to 60°C. The chilled water in the flash chamber is circulated by a pump to the point of application. The warm water from the load is returned to the flash chamber. The water is sprayed through the nozzles to provide maximum surface area for cooling.

Advantages:

  • Steam jet refrigeration equipment features unequaled reliability since there are no moving parts. 
  • Mechanical systems rely on complex high speed reciprocating or centrifugal compressors for operation. 
  • Very fine clearance, high speed, requirement of very effective lubrication , wear and tear lead to the requirement for stand by system i.e. simply more capital cost. 
  • Reliability enables steam jet refrigeration systems to be operated and maintained by plant personnel with minimum supervision.
  • The risk of leaking hazardous refrigerant is over come and maintenance cost is very less.
  • Highly corrosive and toxic refrigerants make mechanical and absorption equipment potentially dangerous if they are not properly maintained and operated. 
  • Absorption unit's main disadvantage is the difficulty in maintaining “tight” system with the highly corrosive Lithium Bromide and an operating pressure of 5 torr in the absorber and evaporator.
  • Special foundations or mounting structures are not required since steam jet refrigeration system exhibits little or no vibration due to no moving parts.
  • Floor space requirements are typically half of what is required for mechanical or absorption units.
  • Mechanical and absorption refrigeration units require many tubes that are easily fouled and require periodic cleaning; therefore, they are not suitable for locations with hard industrial water. 
  • Steam jet refrigeration systems fitted with a barometric condenser, can typically tolerate up to an inch of scale build-up without reducing efficiency.
  • Hard industrial water can be used for the condensers. 
  • Our many installations near by the sea, uses directly sea water into the direct contact condenser to cut down the capital cost on cooling towers.
  • Steam jet refrigeration systems do not require complex control equipment, the instrumentation and controls are similar to those used throughout most plants
  • Mechanical and absorption units require a multiplicity of controls that increase first cost, installation cost and maintenance cost

Application:
  • Food processing plant
  • Gas plants
  • Breweries
  • Rubber and vulcanizing industries
  • Paper and pulp industries
  • Paints and Dyes Industries
  • Pharmaceutical Industries
  • Chemical Industries
  • Edible Oil Refineries

Additional Information:
  • Item Code: SJR-02
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Shail Vac Engineers

Bhavesh H Rawal(Proprietor)
No. 1-6, Royal Industrial Estate, P. O. Delad, G. I. D. C, Sayan
Surat - 394130
Gujarat, India
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