Adsorber structure and module for a heat pump

Patent metadata

Field	Value
Publication number	US-9291374-B2
Application number	US-201414159730-A
Country	US
Kind code	B2
Filing date	Jan 21, 2014
Priority date	Jul 21, 2011
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

An adsorber structure for a heat pump, having at least one pipe, through which a heat-transfer fluid can flow, and an adsorption medium, wherein a working medium can be adsorbed and desorbed on the adsorption medium and the adsorption medium is in thermal connection with the pipe, wherein the adsorption medium is designed as at least one, in particular several, molded bodies, which is/are directly adjacent to a pipe wall of one of the pipes.

First claim

What is claimed is:

1. An adsorber structure for a heat pump, the adsorber structure comprising:
at least one pipe through which a heat transfer fluid is adapted to flow; and
an adsorption medium, whereby a working medium is adapted to be adsorbed and desorbed on the adsorption medium and the adsorption medium is in thermal connection with the pipe,
wherein the adsorption medium is formed as a plurality of molded bodies that are each directly adjacent to a pipe wall of a respective one of the pipes,
wherein each of the plurality of molded bodies has a recess provided in a surface thereof that forms at least partially a vapor channel for the adsorption medium and/or a predetermined breaking point of the molded body.

2. The adsorber structure according to claim 1 , wherein the molded bodies have a thickness of at least about 1 mm or of at least about 2 mm.

3. The adsorber structure according to claim 1 , wherein the molded bodies are each connected to a respective one of the pipes via an elastic adhesive layer.

4. The adsorber structure according to claim 3 , wherein the adhesive layer comprises a silicone base, and wherein the adhesive layer has additives to increase thermal conductivity.

5. The adsorber structure according to claim 1 , wherein each pipe is formed as a flat pipe, and wherein the molded bodies are adjacent to a broad side of each flat pipe respectively.

6. The adsorber structure according to claim 1 , wherein each pipe is formed substantially as a round pipe or polygon pipe, and wherein each pipe is embedded within two or more molded bodies.

7. The adsorber structure according to claim 6 , wherein the molded bodies are formed substantially plate-shaped, and wherein each molded body has a number of indentations for partially enclosing a number of the pipes.

8. The adsorber structure according to claim 1 , wherein each pipe is made substantially of an iron-based alloy.

9. The adsorber structure according to claim 8 , wherein each pipe is made of a steel or ferritic stainless steel and/or a tinned steel or ferritic stainless steel.

10. A module for a heat pump comprising:
an adsorption/desorption region;
a bundle of fluid-traversable pipes disposed in the adsorption/desorption region;
a housing sealingly enclosing the pipe bundle; and
a movable working medium,
wherein the adsorption/desorption region comprises an adsorber structure according to claim 1 .

11. The module according to claim 10 , further comprising a condensation/evaporation region in which a bundle of fluid-traversable pipes is disposed, wherein the working medium is adapted to be moved between the adsorption/desorption region and the condensation/evaporation region.

12. The module according to claim 10 , wherein a support structure forms a mechanical support of a wall of the housing against an action of an external pressure, wherein the support structure is positioned inside of the housing.

13. The module according to claim 10 , wherein the molded bodies form a mechanical support of a wall of the housing against an action of an external pressure.

14. The adsorber structure according to claim 1 , wherein each recess extends in a direction that is perpendicular to an extending direction of the pipes.

15. The adsorber structure according to claim 1 , further comprising recesses provided in opposing surfaces of each molded body.

16. The module according to claim 12 , wherein the support structure is a sheet having longitudinal folds provided therein.

17. The module according to claim 16 , wherein the longitudinal folds are oriented perpendicular to longitudinal beads provided in the housing.

18. An adsorber structure for a heat pump, the adsorber structure comprising:
at least one pipe through which a heat transfer fluid is adapted to flow; and
an adsorption medium, whereby a working medium is adapted to be adsorbed and desorbed on the adsorption medium and the adsorption medium is in thermal connection with the pipe,
wherein the adsorption medium is formed as at least one or a plurality of molded bodies that are directly adjacent to a pipe wall of one of the pipes,
wherein at least one of the plurality of molded bodies lies against the pipe wall of the pipe under action of force or frictionally, and
wherein the pipe or molded body has a substantially wedge-shaped cross section, and wherein the pipe or molded body is held in a wedge direction under the action of force.

19. A molded body with an adsorption medium for a heat pump comprising: a mixture with an adsorption medium, heat-conducting additives and a binder, wherein the binder comprises a ceramic binder, particularly based on silicate ceramics.

20. The molded body according to claim 19 , wherein the mixture comprises a powder of a sorption-active base material in a particle size in the range between 2 μm and 500 μm, particularly between 5 μm and 100 μm.

21. The molded body according to claim 19 , wherein the heat-conducting additives include at least one of expanded graphite, carbon black, BN, SiC, AlN or metallic particles.

Assignees

• Behr Gmbh & Co Kg
• Mahle Int Gmbh

Inventors

• Burk Roland
• Angermann Hans-Heinrich
• Schiehlen Thomas
• Zwittig Eberhard
• Thiele Steffen
• Wolff Thomas
• Schroth Holger
• Felber Stefan
• Brunner Steffen

Classifications

• F25B17/00 Primary

  Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type · CPC title

• Y02B30/62

  Absorption based systems · CPC title

• F25B37/00

  Absorbers; Adsorbers (boiler-absorbers F25B35/00) · CPC title

• F25B17/08 Primary

  the absorbent or adsorbent being a solid, e.g. salt (F25B17/12 takes precedence) · CPC title

• Y02B30/64

  Cross-Sectional Technologies · mapped topic