SJ4912 : Coleham Head pumping Station - injector

taken 1 year ago, near to Shrewsbury, Shropshire, Great Britain

Coleham Head pumping Station - injector
Coleham Head pumping Station - injector
This injector was one of the original methods of feeding the boilers at this former sewage pumping station. The other method was by boiler feed pump on the main beam engines. There is now also a Worthington steam pump as the engine driven pumps are no longer in use. This is one of those counter-intuitive devices that none-the-less work. In this case counter-intuitive because at a glance it seems odd that you can take steam at boiler pressure, mix it with feed water and then push the mix back into the same boiler against boiler pressure.

The wheel and rack arrangement in the background operates the flue dampers to control the draught on the boiler. This site works on natural draught without fan assistance and providing draught is the main function of the tall brick chimney (carrying the smoke away at height is a secondary benefit).
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SJ4912, 1475 images   (more nearby )
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Date Taken
Sunday, 18 June, 2017   (more nearby)
Saturday, 29 July, 2017
Geographical Context
Historic sites and artefacts 
Former (from Tags)
Sewage Pumping Station 
Place (from Tags)
Primary Subject of Photo
Subject Location
OSGB36: geotagged! SJ 4964 1214 [10m precision]
WGS84: 52:42.2745N 2:44.8049W
Camera Location
OSGB36: geotagged! SJ 4964 1214
View Direction
Northeast (about 45 degrees)
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Other Tags
Boiler Feed 

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Image Type (about): close look 
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