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pump

pump

(OP)
hello
for designing a plunger pump for transferring crude oil , i need some theoretical information about these kind of pump. can anybody now how can i calculate optimum distance between plunger rod and cylinder that plunger move in it?( i think i calls tolerance)
i really appreciate you if you can help me

RE: pump

It all depends upon flow and pressure. Plunger diameter, plunger stroke and speed determine the flow. And the pressure in combination with the plunger diameter is of importance for the gear load. Why do you want to design something that you can purchase from various experienced vendors?

RE: pump

(OP)
dear EmmanuelTop:
thank you so much for your help, but i can't get your attached file. i really appreciate you if you can send it again.

dear micalbrch:
thank you for your help, i want to design it because of our special conditions. with this regards i need to theoretical basis for having optimum performance such as best efficiency and less losses.

i attached the schematic of tolerance, i want to calculate

RE: pump

Dear Afsaneheng: Not sure if I understand what you really need. In your initial post you wrote "how can i calculate optimum distance between plunger rod and cylinder that plunger move in it?" How long is the stroke length of your pump? That is more or less the dimension you are looking for, unless I misunderstand you. Do not care that much about efficiency and losses. It is more difficult to get it work so that it operates without trouble.

RE: pump

(OP)
dear EmmanuelTop:
thank you for your help, i received the article and i will read it, i hope it help me.
thank you again.

dear micalbrch:
i have no problem with stroke length and as i showed in attached picture i need to know what is the best distance between plunger rod and plunger cylinder, in part that i distinguished, for better or optimum performance. it is important to me because when the plunger move in, amount of liquid remain at the end and i want that with considering an optimum tolerance between plunger rod and cylinder, lead the fluid to the outlet and with focus on having little noise.

RE: pump

What you probably need is API 647 plunger pump for crude oil production service. Why don't you get together with your Rotating Equipment specialist and contact reputed manufacturers and discuss this particular application directly? This seems like the best approach to me. Eventually you'll have one of those pumps purchased and installed, at the very end. See:

http://www.flowserve.com/files/Files/Literature/Pr...
http://www.fmctechnologies.com/~/media/FluidContro...
http://www.spx.com/en/assets/pdf/CUP-03-RECIP-UK%2...
http://www.rampumps.co.uk/

Dejan IVANOVIC
Process Engineer, MSChE

RE: pump

API 647, sorry for typo.

Dejan IVANOVIC
Process Engineer, MSChE

RE: pump

API 674, sorry for another typo. The keyboard seems to be upside down today upsidedown

Dejan IVANOVIC
Process Engineer, MSChE

RE: pump

(OP)
Of course, for this work we uses standards such as API and ANSI and even pump handbooks. but first our team should have a good simulation of conditions and parameters,because of our special conditions, then investigate the offer of consulting or manufacturer company.
i really appreciate you for your help and kindness.

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