Spec Ash Handling Plant

October 29, 2009

2.8.2 .Jet Pumps

Filed under: AHP, ash handling plant, thermal power plant — Tags: , — shivajichoudhury @ 11:20 am

4 Nos. Jet pump shall be supplied per unit. A jet pump should comprise an inlet section, a high pressure water supply connec­tion through a converging nozzle, a mixing zone and a diverging discharge section to the slurry pipe system.

                        The design of the Jet pump shall allow for the easy and quick inspection, removal and replacement of the jet pump sections that are subject to wear.  This applies in particular to the pump throat and the high pressure water nozzle.  The throat shall be considered as that segment of the jet pump, which is between the inlet section and divergent section of the jet pump and is having the least diameter.

                        Jet pump shall be constructed from suitable hard and abrasion resistant materials.

                        The jet pumps shall be designed to meet the requirement specified and Jet pump shall be designed so that it will convey ash at the rated capacity with a minimum of 25 mm wear on the diameter of the throat. The material of construction of the jet pump shall be :

                        Inlet Suction                  Alloy Steel

                        Discharge Tail Piece      IS:4771, Type 1A, Min. 4.5% Nickle with hardness of 500 BHN

                        Nozzle Inlet                   CI Gr. FG-260 as per IS-210

                        Nozzle tip                     Ceramic lined SS/Tungsten Carbide.

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4 Comments »

  1. [...] 8.2 .Jet Pumps [...]

    Pingback by 1.0 Scheme of Ash Handling System: « Spec Ash Handling Plant — November 27, 2009 @ 8:42 am

  2. [...] 2.8.2 .Jet Pumps [...]

    Pingback by 2.2.0 AHP – Scope of Supply. « Spec Ash Handling Plant — December 3, 2009 @ 12:07 pm

  3. [...] 2.8.2 .Jet Pumps [...]

    Pingback by INDEX- SPEC ASH HANDLING PLANT « Spec Ash Handling Plant — December 9, 2009 @ 7:42 am

  4. Its realy a much helpfull website for AHP equipments.

    In future indeed this will helps us a lot to bring new innovation in AHP.

    Comment by Shyam Sunder Bataw — December 23, 2009 @ 10:13 am


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