PDA

View Full Version : The biggest one in my career







Josip
11-02-2015, 11:01 AM
Hello to all :)

Commissioning and start up of Howden MK2S 510 WRVTAS 51019336 with drive motor of 3800 kW so far is the biggest one in my career.

Some additional info:

Refrigerant is NH3

Suction temp in evaporator 1oC i.e. 4oC at compressor suction

Condensing temp=50oC, Condensing pressure = 21,2 kg/cm2 a

Water cooled S&T condenser ...

Motor speed 1800 rpm ....2000 rpm is max for this compressor ...

Design heat load Q= 11,8 Gcal/h


It is not easy to imagine the size of complete unit ....


Best regards, Josip :)

Grizzly
11-02-2015, 07:30 PM
Impressive Josip.
What were your nerves like when you first turned in on?
Just like stage fright!
Irrespective, I am always nervous when switching anything on for the first time.
Grizzly

PaulZ
11-02-2015, 11:40 PM
Hi Josip
I would be interested in seeing a photo of the beast.
I am like Grizzly always a bit nervous before the first start.

Paul

Josip
12-02-2015, 06:09 AM
Hi,

not started yet ... still in commissioning phase .... I'll inform you ...

need to check a lot of things before we can push a start button

last year started one WRVT 365 ... good feeling ....

of course I'm always a bit or more nervous ;)

.... show me one who is not nervous during first start ...

unfortunately cannot take and post a photo - forbidden on this plant


... in general it is looking like a huge locomotive .... here is possible to find some more general info about ...


http://www.howden.com/Resources/Product%20Brochures/Rotary%20Twin%20Screw%20Compressor%20Brochure%202014.pdf#search=brochure

Best regards, Josip :)

Magoo
12-02-2015, 06:18 AM
Hi Josip.
definitely a massive system, pics would be good. What voltage motor was starting the beast.
I bet the first live start was an anxious moment, it is always for me.

Josip
12-02-2015, 07:30 AM
Hi, Magoo :)


Hi Josip.
definitely a massive system, pics would be good. What voltage motor was starting the beast.
I bet the first live start was an anxious moment, it is always for me.


Squirrel cage, 4 poles, 13200 V and weight about 24700 kg Hyundai Mfg.

It is normal to be anxious ... regardless of all checks ... Murphy is always around :eek:

Best regards, Josip :)

Magoo
13-02-2015, 01:59 AM
Hi Josip
I am impressed, and yes Murphy haunts me on occasions as well.
I can only imagine the motor drive, a large steel box with a shaft and coupling out one end, with the national grid attached. I have seen them at pulp mills and kept walking. Howden still do the best screw in my opinion. post some pics please.

Lodiev
13-02-2015, 05:58 AM
Hi guysI also just started up 2x WRV 204 Howden screws and had a lot of problems with the first package.But it's sorted now, not as huge as this one of Josip but always an anxious moment.Josip in what kind of industry did you install that beast?

smpsmp45
13-02-2015, 06:06 AM
Very interesting. What is the industry using this huge capacity?

chemi-cool
13-02-2015, 10:18 AM
But, can you handle this one?
11960

MikeHolm
13-02-2015, 12:28 PM
But, can you handle this one?
11960

Now, THAT, is more my speed, haha

Josip
14-02-2015, 05:46 AM
Hi, smpsmp45 :)


Very interesting. What is the industry using this huge capacity?

This is urea production plant ...

Best regards, Josip :)

Josip
14-02-2015, 06:28 AM
Hi, chemi-cool :)


But, can you handle this one?
11960


Of course, similar one I have within my PC ;) using magnifying glass for maintenance ...

Best regards, Josip :)

mikeref
14-02-2015, 08:47 AM
5,093 Horse Power. Some serious torque there. Hope it starts and runs without any significant problems.
Thanks for sharing.