18:23

Welcome
Welcome!Welcome to Ships Nostalgia, the world's greatest online community for people worldwide with an interest in ships and shipping. Whether you are crew, ex-crew, ship enthusiasts or cruisers, this is the forum for you. And what's more, it's completely FREE.

Click here to go to the forums home page and find out more.
Click here to join.
Log in
User Name Password

  Home · Search · Register  

Home » Engines & Ship Mechanics Photo Options

« Previous image · Next image »

TWL Feed Pump Model
TWL Feed Pump Model

Click on image to view larger image

« Previous image  · Slide Show · Next image »


Photo Details
Duncan112



Senior Member

Registered: December 2006
Location: Lancashire
Posts: 3,364
View Gallery Profile Send PM users gallery
On display in Clyde Union (Formerly Weir Pumps) Head Office in Cathcart
· Date: Thu, 11 April 19 · Views: 284
· Filesize: 38.0kb, 69.7kb · Dimensions: 960 x 720 ·
Additional Info
Keywords: Weir Pump
Location photo was taken: Glasgow
Date photo was taken: Oct 2018
Weir_feed_pump.jpg
TWL.jpg
3_Steam_winch_at_Funchal.jpg
morePlum_04_.jpg
14479633_312279815807622_3768376509557955070_n.jpg
IMGP2979_1_SN_.jpg
IMGP2982_1_SN_.jpg
IMGP2927_1_SN_.jpg
IMGP2928_1_SN_.jpg
IMGP2925_1_SN_.jpg
IMGP3045_1_SN_.jpg
IMGP3017_1_SN_.JPG
IMGP2971_1_SN_.JPG
IMGP3013_1_SN_.JPG
DSC_27301.jpg
USS_Vesuvius_1890-1922_Breeches_of_Dynamite_Guns_1890_copy.jpg
USS_Vesuvius_1890-1922_Muzzles_of_Dynamite_Guns_1890_copy.jpg
USS_Vesuvius_Air_Chambers_for_Dynamite_Guns_1890_copy.jpg
Marine_engines_by_Detroit_Shipbuilding_Co_two_triples_and_a_quadruple_1901_copy.jpg
Commonwealth_Engineering_Works_Williamstown_Victoria_Ships_Engine_Big_End_copy.jpg
Hawthorn_Leslie_Logo.jpg
more »

Author
Thread  
alaric
Senior Member

Registered: February 2012
Location: Rutland
Posts: 1,014
Thu, 11 April 19 03:59

I don't think this is a model, it's a cut-away of the smallest pump in the range.
ss Northern Star had 2 full size TWL feed pumps and one small Harbour pump.
On one occasion in Cape Town we managed to have all 3 seized up at the same time.
Not a good day!
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
Philthechill
Senior Member

Registered: May 2007
Location: Stamford Bridge, near York
Posts: 3,806
Thu, 11 April 19 04:28

The combination of Water Lubrication and PTFE bearings was an absolute nightmare! If your pumps just 'seized', alaric, you were VERY lucky! On
'Atlantic Conveyor' we had one lose its water lubrication, (despite having multiple 'back-up' systems), and seized----instantly. Supply steam at 900 p.s.i. had nothing to absorb its 'energy' so simply blew the casing apart! Luckily, with it being an un-manned engine room, there was nobody 'down below' as they would have been badly scalded or cut-down by flying 'shrapnel' from the disintegrating pump! NOT a good day!!! Phil
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
jmbrent
Senior Member

Registered: February 2010
Location: freeport grand bahama
Posts: 231
Thu, 11 April 19 05:20

In a black out situation they were a nightmare as you could not stop them as they would seize up as they stopped,so it was a made rush to get a condensate pump running to shut them down.
This user is online
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
clarkie59
Member

Registered: October 2007
Location: North Somerset
Posts: 74
Thu, 11 April 19 10:09

If I remember rightly a pig to work on as well, non-standard threads (we called them BFW!) and joints in inaccessible positions. One under neath and dead central requiring a socket with 2 long extensions to reach the nuts!
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
douglasjamesmichael

Senior Member

Registered: November 2005
Location: Scotland
Posts: 651
Thu, 11 April 19 15:49

Hi all this is a cut away of the new TWL - you will see that the turbine wheel has only one row of blades - this is so it can run on saturated steam - the blades are now machined into the Turbine wheel... they are now used as nuclear reactor cooling pumps so that the world will not have another Chernobyl or Fukushima disaster......why are they used as Reactor cooling pumps? well when the power is switch off in the event of an incident - in the past cooling pumps were powered by Electric Motor...no power no motor....Now the residual steam in the boiler - saturated steam - will run these machines for 52 weeks non stop and will circulate cooling water to the reactor......How do I know all this...I was on the team that built them and I carried out training courses for operatives - from Korea, China, Taiwan, USA & Croatia.....

------------------------------
Douglas James Michael
Thumb
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
douglasjamesmichael

Senior Member

Registered: November 2005
Location: Scotland
Posts: 651
Thu, 11 April 19 15:58

Alaric.....The smallest TWL's were built for a vessel of the Isle of Man steam packet company.....and it is a cutaway
Clarkie….The threads on the TWL Mk1 were all standard....believe me I built them....the only time you needed a socket and an extension bar was to remove some of the nuts that retained the nozzle segment.
JM Brent...the only way you could seize a TWL is some numpty cut off the cooling water circuit - also how often did you check the over speed trip gear....
The only contributor that is talking sense and we have had discussions on the TWL before is Phill the chill

------------------------------
Douglas James Michael
Thumb
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
douglasjamesmichael

Senior Member

Registered: November 2005
Location: Scotland
Posts: 651
Thu, 11 April 19 15:58

Alaric.....The smallest TWL's were built for a vessel of the Isle of Man steam packet company.....and it is a cutaway
Clarkie….The threads on the TWL Mk1 were all standard....believe me I built them....the only time you needed a socket and an extension bar was to remove some of the nuts that retained the nozzle segment.
JM Brent...the only way you could seize a TWL is some numpty cut off the cooling water circuit - also how often did you check the over speed trip gear....
The only contributor that is talking sense and we have had discussions on the TWL before is Phill the chill

------------------------------
Douglas James Michael
Thumb
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
douglasjamesmichael

Senior Member

Registered: November 2005
Location: Scotland
Posts: 651
Thu, 11 April 19 15:58

Alaric.....The smallest TWL's were built for a vessel of the Isle of Man steam packet company.....and it is a cutaway
Clarkie….The threads on the TWL Mk1 were all standard....believe me I built them....the only time you needed a socket and an extension bar was to remove some of the nuts that retained the nozzle segment.
JM Brent...the only way you could seize a TWL is some numpty cut off the cooling water circuit - also how often did you check the over speed trip gear....
The only contributor that is talking sense and we have had discussions on the TWL before is Phill the chill

------------------------------
Douglas James Michael
Thumb
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
Duncan112

Senior Member

Registered: December 2006
Location: Lancashire
Posts: 3,364
Sun, 14 April 19 13:51

I will bow to Douglas James' superior knowledge about the cutaway but the casing of this one appeared made of some form of resin.
Did 4 voyages with the TWLs on "Flinders Bay" and we had no problems, although the stories were legion. Ran a couple of bearings on the extraction pumps, the first time I have had to scrape a bearing (and so far last!!).
Coffin were far worse!!

------------------------------
“Those who cannot remember the past are condemned to repeat it.”

George Santayana (1863 - 1952)
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
Duncan112

Senior Member

Registered: December 2006
Location: Lancashire
Posts: 3,364
Mon, 15 April 19 05:00

Douglas James mentions their use as reactor cooling pumps, whilst in Weirs I was shown a film of the type test for this, it involved running the pump in a pit and suddenly submerging it, I think the test period was 24 hours, most impressive, I was looking to see if the film is on the web but can't find it. edit, might be here but net nanny where I am won't let me view https://www.youtube.com/embed/ZbDpnrf9dzU?rel=0

------------------------------
“Those who cannot remember the past are condemned to repeat it.”

George Santayana (1863 - 1952)
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
douglasjamesmichael

Senior Member

Registered: November 2005
Location: Scotland
Posts: 651
Fri, 10 May 19 08:14

Duncan you are correct. the show is on you tube - serch twl and it will come up....
This as you know was originally a boiler feed pump and as you correctly say the Flinders Bay and all the Bay class container ships had TWL's until their dieselisation as did most of the container ships built at Howaldswerk Deutsche Wert and at La Coitat in France and if I remember correctly Alnsaldo in Italy....mainly Tankers...
Anyway. Both the Chinese and Korean Nuclear Electric Companies stipulated that, the pumps had to be earthquake resistant and work under water......unofficially, the TWL Boiler feed pump had already run under water on board a ship I was on....the name shall remain incognito...after leaving the Jnr and the cadet on board...while we jolly jacks went up the road only to return half pissed...with the stern of the ship well down and the bow well up......
nothing like an engine room flood to sober you up.....so we went for a swim in the engine room and disconnected some pipework on the suction and discharge ----long story short we used a TWL with a steel suction pipe and a hose over the wall discharge...bearing in mind the TWL had an inducer for low suction head....this was a bonus......wow did it pump out the engine room....never seen a stern rise so fast......

------------------------------
Douglas James Michael
Thumb
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  
douglasjamesmichael

Senior Member

Registered: November 2005
Location: Scotland
Posts: 651
Fri, 10 May 19 08:36

Ref the Coffin Turbo Feed Pump....Anyone....Anyone who locates Cylindrical bearings next to a Steam Turbine....Ok they are Oil cooled...But?????

------------------------------
Douglas James Michael
Thumb
This user is offline
Click here to see this users profile Click here to Send this user a Private Message Find more posts by this user Visit this user's gallery  

Photo Sharing Gallery by PhotoPost
Copyright © 2007 All Enthusiast, Inc.



Support SN


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.