Booster pump with Jockey pump for potable water network of the plant
Booster pump with Jockey pump for potable water network of the plant
(OP)
In our project the specification call for 2 booster pump(1 duty+1standby) with one jockey pump arrangement for the potable water ring network.
But In our understanding and experience in other projects, the hydropneumatics tank is necessary and provides a well-studied performance in potable water systems. The hydropneumatics tank avoids the delay to the consumer and constant start/stop of the main pumps if a low demanding consumer is activated. Without the tank, we understand that jockey pump will always be functioning, which from an energetic point of view doesn’t seem favorable.
Can you please help me the system will work with jockey pump or not without any delay with consumer?
Please provide some supporting reference to discuss with client.
31m3/Hr flow & 88m head for the booster pump and 1% flow considered for the jockey pump
But In our understanding and experience in other projects, the hydropneumatics tank is necessary and provides a well-studied performance in potable water systems. The hydropneumatics tank avoids the delay to the consumer and constant start/stop of the main pumps if a low demanding consumer is activated. Without the tank, we understand that jockey pump will always be functioning, which from an energetic point of view doesn’t seem favorable.
Can you please help me the system will work with jockey pump or not without any delay with consumer?
Please provide some supporting reference to discuss with client.
31m3/Hr flow & 88m head for the booster pump and 1% flow considered for the jockey pump
RE: Booster pump with Jockey pump for potable water network of the plant
You are talking two different things and without knowing what the demand curve over time looks like no one can say what is going to happen.
Jockey pumps tend to be used for pressurising things like fire water mains to account for things like small leaks or small usage of water.
Only you know what the flows look like and how to balance out a big pump starting and stopping - 31m3/hr looks quite alot.
You often see some sort of cascading pump system so that you have a range of pump sizes to cope and a decent sized pressurised tank to smooth it all out.
"Please provide some supporting reference to discuss with client." - Sorry - I don't provide free engineering services.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Booster pump with Jockey pump for potable water network of the plant
Jockey pumps have been commonly used in this application for years in process plants on fire water systems. The potable water systems are generally smaller and don't require jockey pumps.
It is probably more common today to use a VFD pump for this application.
RE: Booster pump with Jockey pump for potable water network of the plant
This potable water network for Desalination plant.
Which includes following common tap,shower,kitchen sink,toilet,Urinals,emergency shower,drinking fountain for almost 11 buildings and total point of 1043.
It is several square miles.
The specificaion strictly to be followed,they ask 2 booster pump with jockey pump for potable water supply.We affraid that the system will work without any delay and no pressure tank in the system.
RE: Booster pump with Jockey pump for potable water network of the plant
With accumulators, which are basically dead ends, there is a lot of risk of bacteria growth. Above drinking fountains are mentioned, which would require drinking water quality and not just sweet water.
Good luck with finding a good approach.
RE: Booster pump with Jockey pump for potable water network of the plant
One can cook up a scheme for this accumulator tank, but I would try selling the client the above scheme first.
RE: Booster pump with Jockey pump for potable water network of the plant
Having two 1% pumps for a system which sounds like it will have a constant flow from somewhere unless there are literally no people on site for certain times.
but 11 buildings, over 1000 connections and spread over several square miles sounds quite different to a fire main system which is where you commonly see such small jockey pumps.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Booster pump with Jockey pump for potable water network of the plant
RE: Booster pump with Jockey pump for potable water network of the plant
An issue with this set up (accumulation tank +jockey pump) is the risk of legionella. Be aware of!
Good luck
Pierre