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Ejector steam-ejecting main EP-3-750-2 buy in St petersburg
Buy Ejector steam-ejecting main EP-3-750-2
Ejector steam-ejecting main EP-3-750-2

Ejector steam-ejecting main EP-3-750-2

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3400000 RUB
Russia, St petersburg
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4 years on Allbiz
Technical characteristics
  • Country of manufactureRussia

The ejector the main is intended for a suction of not condensed gases and ensuring normal heat exchange in the main condenser of steam.


 The EP-3-750-2 ejector is calculated for work on condensate of water vapor as the cooling environment and represents the jet airsucking-away device of a welded design of vertical type. Normal operation of the steam-ejecting ejector in all range of the modes of the turbine plant depends on the correct performance and a condition of pipelines:

  • supply of fresh steam;
  • suction of not condensed gases;
  • supply and removal of the cooling condensate;
  • removal of condensate of working steam and steam of gases which is not condensed in the condenser

The ejector has 3 steps of compression. Steam with pressure exceeding pressure of steam-air mix is brought to a nozzle box of EP-3-750-2 on a steam line. Working steam on withdrawal of a steam line moves to nozzles 1y, 2y and 3y steps, located in the soaking-up camera. Working steam, coming to nozzles, accelerates and extends, reducing pressure to the value determined by geometry snuffled also steam parameters before nozzles. A stream of working steam, leaving with a supersonic speed from snuffled in the soaking-up camera, takes ezhektiruyemy steam-gas mix, there is an alignment of speeds on stream section which is followed by increase in pressure. Further compression of the mixed stream up to pressure size behind the device happens in diffusers of the corresponding steps.


Mixed steam-air mix gets to the ejector case where there is a condensation of working steam on heatexchange pipes of pipe system of the ejector. The surface area of cooling of the built-in cooler is formed by 3U-shaped bunches of heatexchange pipes with a diameter of 18х1 from material stainless steel of brand 08X18H10T. Heatexchange pipes of a razvaltsovana in a pipe board.

Condensate of working steam is taken away through the drainage line supplied with the backpressure valve. Air is removed from the ejector through an exhaust branch pipe on which the air-flow meter with control devices before it is installed: pressure and temperatures of steam-air mix, and also manovakuumetry.


The cooling water comes to ejector heat exchangers under pressure created by the condensate pump. Supply of the cooling water is carried out through the corresponding supply. Water comes to the first part of the water camera, fills it and on heatexchange pipes of the 1st bunch come to the second part of the water camera, fills it and on heatexchange pipes of the 2nd bunch come to the third part of the water camera, fills it and on heatexchange pipes of the 3rd bunch comes to the last part of the water camera and is removed from pipe system of the ejector through the corresponding branch.

Technical characteristics:

Volume productivity on steam-air mix – 3000 m3/h

Quantity of steps of the ejector – 3 pieces.

The number of heat exchangers – 3 pieces.

The mass of the ejector – 2130 kg

The mass of the ejector, with the filled water space – 2330 kg


Thermometers for control of temperature of the cooling condensate on an entrance and an exit from the water camera are a part of delivery of the ejector. Thermometers are installed on the ejector by the assembly organization according to the assembly drawing.

The steam-ejecting ejector is operated in close interrelation with the main condenser of steam in the block with the turbine plant.

With some photos of works on production of the Ejector of steam-ejecting main EP-3-750-2 you can will examine in  a photo gallery of the performed works .


In case of requirement of your organization for the similar equipment you can address us with the application, we will send the answer with the indication of cost of the equipment to you within 1 day.

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Ejector steam-ejecting main EP-3-750-2
Ejector steam-ejecting main EP-3-750-2
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