Absorption chiller refrigerator system

Patent metadata

Field	Value
Publication number	US-12092376-B2
Application number	US-202217868331-A
Country	US
Kind code	B2
Filing date	Jul 19, 2022
Priority date	Jul 19, 2022
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

An absorption chiller refrigerator system with an evaporator-absorber section and a generator-condenser section disposed together within a housing. The evaporator-absorber system has an evaporator section having an evaporator and an absorber disposed together within the evaporator section but separated by a perforated plate within the evaporator section. The generator condenser system has a generator section having a generator and a condenser disposed together within the generator section but separated by a perforated plate within the generator section. Perforations in the perforated plate of each of the evaporator section and the generator section are cone-shaped passages.

First claim

The invention claimed is:

1. An absorption chiller refrigerator system, comprising:
an evaporator-absorber section and a generator-condenser section disposed together within a housing, wherein
the evaporator-absorber section comprises an evaporator section with an evaporator and an absorber, wherein the evaporator and the absorber are disposed together within the evaporator-absorber section;
the evaporator and the absorber are separated by a first perforated plate within the evaporator-absorber section;
the first perforated plate is spaced apart from both the evaporator and the absorber;
the first perforated plate has perforations in the form of cone-shaped passages;
the generator-condenser section comprises a generator section with a generator and a condenser, wherein the generator and the condenser are disposed together within the generator-condenser section;
the generator and the condenser are separated by a second perforated plate within the generator section;
the second perforated plate is spaced apart from both the generator and the condenser; and
the second perforated plate has perforations in the form of cone-shaped passages.

2. The system of claim 1 , wherein a first refrigerant is evaporated by the evaporator within the evaporator-absorber section to form a first refrigerant vapor.

3. The system of claim 1 , wherein a second refrigerant is evaporated by the generator within the generator-condenser section to form a strong desiccant mixture.

4. The system of claim 2 , wherein the perforated plate in the evaporator section is configured to jet the first refrigerant from an evaporator side of the first perforated plate into an absorbent mixture on an absorber side of the first perforated plate to form a vapor absorbed desiccant mixture.

5. The system of claim 3 , wherein the second perforated plate is configured to jet the second refrigerant vapor from a generator side of the first perforated plate into the condenser side of the second perforated plate to form a second desiccant mixture.

6. The system of claim 4 , wherein the absorber is configured to cool the vapor absorbed desiccant mixture and form a liquid and flow the liquid from the evaporator section.

7. The system of claim 5 , wherein the condenser is configured to cool the second desiccant mixture and form a liquid and flow the liquid from the generator section.

8. The system of claim 1 , wherein the evaporator is an electrical heater.

9. The system of claim 6 , wherein a tank is fixedly attached to the evaporator to collect the liquid.

10. The system of claim 1 , wherein the generator is an electrical heater.

11. The system of claim 3 , wherein a tank is fixedly attached to the generator to collect a liquid.

12. The system of claim 6 , wherein the evaporator is in liquid flow communication with condenser to recycle the weak desiccant mixture from the condenser to the evaporator by a pump.

13. The system of claim 3 , wherein the absorber is in liquid flow communication with the generator to recycle the strong desiccant mixture from the absorber to the generator by a pump.

14. The system of claim 2 , wherein the evaporator is in liquid flow communication with condenser to recycle the first refrigerant vapor from the condenser to the evaporator by a pump.

15. The system of claim 3 , wherein the absorber is in liquid communication with the generator to recycle the second refrigerant from the absorber to the generator by a pump.

16. The system of claim 1 , wherein the evaporator is in fluid communication with the absorber through circulated heated water, which heats the evaporator.

17. The system of claim 1 , wherein the generator is in fluid communication with the condenser through circulated heated water, which heats the generator.

18. The system of claim 1 , wherein the absorber is in fluid communication with the evaporator through circulated chilled water, which cools the absorber.

19. The system of claim 1 , wherein the condenser is in fluid communication with the generator through circulated chilled water, which cools the condenser.

20. The system of claim 1 , wherein:
the evaporator is configured to evaporate a first refrigerant to form a first refrigerant vapor that passes through the perforations of the first perforated plate to the absorber, and
the generator is configured to evaporate a second refrigerant to form a strong desiccant mixture that passes through the perforations of the second perforated plate to the condenser.

21. The system of claim 1 , wherein:
the first perforated plate is spaced apart from each of inner walls of the evaporator and the absorber by between 100 mm and 500 mm, and
the second perforated plate is spaced apart from each of inner walls of the generator and the condenser by between 100 mm and 500 mm.

22. The system of claim 1 , wherein:
the evaporator stands upright for a first refrigerant to flow down vertically,
the absorber stands upright for an absorbent mixture to flow down vertically,
the first perforated plate stands upright,
the generator stands upright for a weak desiccant mixture to flow down vertically,
the condenser stands upright for a second refrigerant to flow down vertically, and
the second perforated plate stands upright.

Assignees

• Univ King Fahd Pet & Minerals

Inventors

• Alshehri Ali Mohammad
• MUNTESHARI Obaidallah Mohammad

Classifications

• F25B15/06

  the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide {(F25B15/025 takes precedence)} · CPC title

• F25B49/043 Primary

  Operating continuously · CPC title

• Y02A30/27

  Relating to heating, ventilation or air conditioning [HVAC] technologies · CPC title

• Y02B30/62

  Absorption based systems · CPC title

• F25B15/008 Primary

  with multi-stage operation (F25B15/006 takes precedence) · CPC title