Integrated pressure compensating heat exchanger and method

Patent metadata

Field	Value
Publication number	US-10190832-B2
Application number	US-201715821037-A
Country	US
Kind code	B2
Filing date	Nov 22, 2017
Priority date	Aug 25, 2011
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

An integrated pressure compensating heat exchanger and method of use are provided. The integrated pressure compensating heat exchanger includes an inlet configured to input an internal fluid; a first conductive bellows connected to the inlet, configured to accept the internal fluid from the inlet, configured to transfer heat between the internal fluid and an external fluid, and configured to compensate for a pressure by compressing in length; and an outlet configured to accept the internal fluid from the first conductive bellows and to output the internal fluid.

First claim

What is claimed is:

1. A method for compensating for pressure and for cooling an external fluid with an integrated pressure compensating heat exchanger, the method comprising:
flowing an internal fluid inside of the integrated pressure compensating heat exchanger, the internal fluid flowing sequentially through an inlet, a first conductive bellows, a first U-shaped adaptor, a second conductive bellows, and an outlet, wherein the heat exchanger comprises the first conductive bellows and the second conductive bellows;
flowing the external fluid outside of the integrated pressure compensating heat exchanger;
decreasing a volume of the integrated pressure compensating heat exchanger into a compressed configuration as a volume of the external fluid increases due to a temperature increase in the external fluid;
sliding a second guide along a smooth portion of the outlet as the first conductive bellows and the second conductive bellows compress simultaneously, the second guide mechanically coupling the smooth portion of the outlet to the first conductive bellows and to the second conductive bellows; and
actively controlling a pressure differential between an internal fluid and an external fluid using an active actuator by pushing and pulling the first conductive bellows and the second conductive bellows, wherein the active actuator is mechanically coupled to the first U-shaped adaptor communicatively located between the first conductive bellows and the second conductive bellows.

2. The method of claim 1 further comprising a second U-shaped adaptor communicatively located between the second conductive bellows and the outlet, wherein the second U-shaped adaptor is stationary.

3. The method of claim 1 , wherein the actuator is combined with a position sensor.

4. The method of claim 1 , wherein the first conductive bellows and the second conductive bellows are configured to receive the internal fluid from the inlet, to transfer heat between the internal fluid and the external fluid, and to compensate for a pressure by compressing in length.

5. The method of claim 1 , further comprising a first guide mechanically coupling the smooth portion of the outlet to the first conductive bellows and to the second conductive bellows.

6. The method of claim 1 , wherein the first conductive bellows is connected to the inlet.

7. The method of claim 1 , wherein the first U-shaped adaptor is mobile.

8. The method of claim 1 , wherein the second conductive bellows is communicatively located between the first U-shaped adaptor and the outlet.

Assignees

• Nuovo Pignone Tecnologie Srl

Inventors

• Giachetti Silvio

Classifications

• F28D1/04

  with tubular conduits {(F28D1/0246 takes precedence)} · CPC title

• F28F1/08

  Tubular elements crimped or corrugated in longitudinal section · CPC title

• F28D7/08

  the conduits being otherwise bent, e.g. in a serpentine or zig-zag (F28D7/10 takes precedence){(F28D7/0016 and F28D7/0033 take precedence)} · CPC title

• H02K5/20

  with channels or ducts for flow of cooling medium · CPC title

• F28F2265/14

  for preventing damage by freezing, e.g. for accommodating volume expansion · CPC title