#ejectors

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Steam Ejector is a device that is used in the United States as one of the easiest and most cost-effective ways to remove hot gases from a boiler or furnace. Steam ejectors come in models with various types of capacities and are simple to install without making a mess or noise.

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Steam Ejectors Manufacturer are one of the simplest and most cost effective methods of venting hot gases from a boiler or furnace. Available in models for all types of capacities, steam ejectors can be installed easily and quickly, with no mess or noise.

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The Ejectors market report provides in-depth insights and analysis into developments impacting enterprises and businesses on the global and regional levels.

[crystaltcs]

Air Ejectors Manufacturers and Suppliers

The main function of the air ejector is to extract air and no condensate gases from a closed system. It provides vacuum by removing air from the condenser. The amount of air extracted at the time of starting is more as compared to running unit.

Parts of ejector: It generally consists of converging nozzle, diverging nozzle, diffuser throat, inlet and outlet pipes, for measurement of air flow rota meter, cells with tube for regeneration heat transfer, Steam traps for drip control. An air ejector or steam ejector is a device which uses the motion of moving fluid (Motive Fluid) to transport another fluid (Suction fluid). It is has a wide range of application in steam ejector in boiler condenser, fresh water generator and in priming the centrifugal pump.

Appliction of Air Ejectors:

1. Steam Jet Air Ejector:

It is one of the types of air ejector which is used in the steam like near the condenser to remove the non condensable gases and some vapour entering into main condenser by an air ejector and it is cooled by the main condensate and released in the ejector condenser.

A steam is used as the motive fluid to withdraw air and dissolved gases from the condenser by the ejector action. In each stage of the steam jet ejector, high pressure steam is expanded in a convergent /divergent nozzle. The steam leaves the nozzle at a very high velocity in the order of 1220 m/s and a proportion of the kinetic energy in the steam jet transferred by interchange of momentum to the body of air which entrained and passes along with the operating steam through a diffuser in which the kinetic energy of combined steam is re-converted to pressure energy.

The maximum pressure ratio that can be obtained with a single stage is roughly 5:1 and consequently it is necessary to use two or even three stages in series to establish a vacuum in the order of 724mm of Hg with reasonable steam consumption.

 Design Feature:

There are a variety of ejectors designed in service which work on the same principle. Older unit have heavy cast steel which serves as a vapour condenser and also contains diffusers. These are arranged vertically the steam entering at the top. More recent design has the diffuser arrangement externally and vapour condenser shell is somewhat lighter in construction.

Horizontal singe element two stage air ejectors this unit comprises a stack u-tubes contained in a fabricated mild steel condenser shell on which is mounted a single element two stage air ejector.

The condensate from the main or auxiliary condenser is used as the cooling medium. High velocity operating steam emerging from the first stage ejector nozzle entrains the non-condensable and vapour from the main condenser and the mix discharge into the inter condenser.

Most of the steam and vapour is condensed when it comes into contact with the cool surface of the tubes, falls to the bottom of the shell and drains to the main or auxiliary condenser.

The remaining air and water vapour are drawn into the second stage ejector and discharged to the steam drain tank and non-condensable gases are at last discharged to the atmosphere through vacuum retaining valve.

2. Fresh Water Generator:

The next main application of the air ejector in marine field is in fresh water generator as it is used to remove the air and non condensable in the evaporator chamber so as to maintain the vacuum inside the chamber. Thus the efficiency of the generation increases at low temperature of the sea water.

3. Self Priming of Centrifugal Pumps:

It is also employed in priming of the centrifugal pumps by the air ejector, which removes the air inside the casing of the pump by the suction effect created by the air ejector thus by flooding casing with the liquid so that it helps in stating of the pump.

CrystalTCS are leading manufacturer and supplier of ejectors in Nashik, Mumbai, Pune, Ahmedabad, Surat.

Crystal TCS Pvt. Ltd.

Address: 3752/Q5, K-Villa, Takli Road Agra Road Corner, Nashik-422011, Maharashtra, India 

For more information Give us call at: [phone]

E-mail : [email protected]

Visit us: http://www.crystaltcs.com/operating-principle-of-the-Atmospheric-Air-ejector-Liquid-ring-vacuum-pump-combination-system.php