Method and an arrangement in a flow system

Patent metadata

Field	Value
Publication number	US-10413875-B2
Application number	US-201715426618-A
Country	US
Kind code	B2
Filing date	Feb 7, 2017
Priority date	Feb 9, 2016
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

An arrangement for adding a first fluid component into a flow system, said arrangement comprising:
a first pump provided in a first component adding fluid line which is connecting a first system fluid line of the flow system with a first fluid component source comprising the first fluid component to be added into the flow system; and a second pump provided in a second component adding fluid line connected in parallel with the first component adding fluid line, said second component adding fluid line connecting the first system fluid line of the flow system with a first fluid component source comprising the first fluid component to be added into the flow system.

First claim

The invention claimed is:

1. A method for adding a first fluid component into a flow system, comprising the steps of:
i) providing:
a) a first pump in connection with a first component adding fluid line;
b) a second pump in connection with a second component fluid line;
c) a fluid component source, comprising a fluid component to be added into the flow system; and
d) a system fluid line;

ii) connecting a first end of the first component adding fluid line to the system fluid line;
iii) connecting a second end of the first component adding fluid line to the fluid component source via the first pump;
iv) connecting a first end of the second component adding fluid line to the system fluid line; and
v) connecting a second end of the second component adding fluid line to the fluid component source via the second pump; and
vi) keeping one of the first pump or the second pump at a constant flow rate and regulating the total flow of the fluid component into the system fluid line regulating the other of the first or second pump;
wherein one of the first or second pumps is larger than the other and kept at constant flow rate; and
wherein, flow of a fluid from the fluid component source via second pump is parallel with flow of the fluid from the fluid component source via the first pump.

2. The method according to claim 1 , further comprising regulating the total flow of the fluid component into first system fluid line regulating the one of the first or second pumps being the smallest pump.

3. The method according to claim 1 , further comprising detecting a condition in the flow in the flow system and regulating one or both of the first and second pumps in dependence of said detected condition.

4. The method according to claim 3 , wherein the method is a method for inline blending of a plurality of fluid components to a blended solution to be added into a flow system, wherein one of the fluid components is the fluid component which is provided through two parallel component adding fluid lines, being the first component adding fluid line and the second component adding fluid line.

Assignees

• Ge Healthcare Bio Sciences Ab

Inventors

• Lynga Jan-Erik Pettersson
• Dahlstedt Hagman Asa

Classifications

• G05D7/0682 Primary

  using a plurality of flow sources · CPC title

• B01D15/166

  Fluid composition conditioning, e.g. gradient · CPC title

• B01F15/0243

  Operations & Transport · mapped topic

• B01F3/0861

  Operations & Transport · mapped topic

• B01F15/00285 Primary

  Operations & Transport · mapped topic