Multi-temperature output fluid heating system

Patent metadata

Field	Value
Publication number	US-9719687-B2
Application number	US-201514602248-A
Country	US
Kind code	B2
Filing date	Jan 21, 2015
Priority date	Jan 21, 2014
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A multi-temperature output fluid heating system including an input for receiving a fluid supply, a single heating source, a first output, a second output and a bypass path. The first output is fluidly connected to the input, where the first output is adapted for control by a first control device and to receive heat from the single heating source to achieve a first temperature at the first output. The bypass path fluidly connects the input and the second output. The input is adapted to empty a first portion of the fluid supply into the first output and a second portion of the input into the bypass path. The second output is adapted to receive an output from the first output and an output from the bypass path to achieve a second temperature.

First claim

What is claimed herein is:

1. A multi-temperature output fluid heating system comprising:
(a) an input for receiving a fluid supply;
(b) a single heating source;
(c) a first output fluidly connected to said input, wherein said first output is adapted for control by a first control device and to receive heat from said single heating source to achieve a first temperature at said first output;
(d) a second output;
(e) a bypass path fluidly connecting said input and said second output; and
(f) a temperature regulator disposed between said second output and said first output, said temperature regulator is an S-shaped bend, whereby said temperature regulator is configured to prevent overheating of said second output if said first output has been maintained for a long period of time at an unacceptably high level for said second output,
whereby said input is adapted to empty a first portion of the fluid supply into said first output and a second portion of said fluid supply into said bypass path and said second output is adapted to receive an output from said first output and an output from said bypass path to achieve a second temperature.

2. The multi-temperature output fluid heating system of claim 1 , further comprising a pump disposed upstream of said first output and configured for pushing an output of said first output through a heat exchanger.

3. The multi-temperature output fluid heating system of claim 2 , wherein said heat exchanger is a plate-type heat exchanger.

4. The multi-temperature output fluid heating system of claim 1 , wherein said first control device is a modulating device configured to modulate said first portion.

5. The multi-temperature output fluid heating system of claim 1 , wherein said second portion is adapted for control by a second control device.

6. The multi-temperature output fluid heating system of claim 5 , wherein said second control device is a solenoid valve having a failed state configured to allow said second portion from said input to said second output.

7. The multi-temperature output fluid heating system of claim 1 , further comprising a buffer tank disposed between said input and said first output.

8. The multi-temperature output fluid heating system of claim 1 , further comprising a temperature sensor disposed at said second output, wherein said temperature sensor is adapted to detect a condition where said second temperature is unacceptably high.

9. The multi-temperature output fluid heating system of claim 1 , wherein said first temperature is about 180 degrees F.

10. The multi-temperature output fluid heating system of claim 1 , wherein said first temperature is about 120 degrees F.

11. The multi-temperature output fluid heating system of claim 1 , wherein said second temperature is about 120 degrees F.

12. The multi-temperature output fluid heating system of claim 1 , wherein said first temperature is substantially the same as the second temperature.

13. A multi-temperature output fluid heating system comprising:
(a) an input for receiving a fluid supply;
(b) a single heating source;
(c) a first output fluidly connected to said input, wherein said first output is adapted for control by a first control device and to receive heat from said single heating source to achieve a first temperature at said first output;
(d) a second output;
(e) a bypass path fluidly connecting said input and said second output; and
(f) a temperature regulator disposed between said second output and said first output, said temperature regulator is a loop, whereby said temperature regulator is configured to prevent overheating of said second output if said first output has been maintained for a long period of time at an unacceptably high level for said second output,

whereby said input is adapted to empty a first portion of the fluid supply into said first output and a second portion of said fluid supply into said bypass path and said second output is adapted to receive an output from said first output and an output from said bypass path to achieve a second temperature.

14. The multi-temperature output fluid heating system of claim 13 , further comprising a pump disposed upstream of said first output and configured for pushing an output of said first output through a heat exchanger.

15. The multi-temperature output fluid heating system of claim 14 , wherein said heat exchanger is a plate-type heat exchanger.

16. The multi-temperature output fluid heating system of claim 13 , wherein said first control device is a modulating device configured to modulate said first portion.

17. The multi-temperature output fluid heating system of claim 13 , wherein said second portion is adapted for control by a second control device.

18. The multi-temperature output fluid heating system of claim 17 , wherein said second control device is a solenoid valve having a failed state configured to allow said second portion from said input to said second output.

19. The multi-temperature output fluid heating system of claim 13 , further comprising a buffer tank disposed between said input and said first output.

20. The multi-temperature output fluid heating system of claim 13 , further comprising a temperature sensor disposed at said second output, wherein said temperature sensor is adapted to detect a condition where said second temperature is unacceptably high.

21. The multi-temperature output fluid heating system of claim 13 , wherein said first temperature is about 180 degrees F.

22. The multi-temperature output fluid heating system of claim 13 , wherein said first temperature is about 120 degrees F.

23. The multi-temperature output fluid heating system of claim 13 , wherein said second temperature is about 120 degrees F.

24. The multi-temperature output fluid heating system of claim 13 , wherein said first temperature is substantially the same as the second temperature.

Assignees

• Deivasigamani Sridhar
• Akasam Sivaprasad
• Intellihot Inc

Inventors

• Deivasigamani Sridhar
• Akasam Sivaprasad

Classifications

• F24D19/1069 Primary

  regulation in function of the temperature of the domestic hot water · CPC title

• F24H1/125

  combined with storage tank · CPC title

• F24D3/082

  Hot water storage tanks specially adapted therefor · CPC title

• F24H1/52

  incorporating heat exchangers for domestic water (F24H1/50 takes precedence) · CPC title

• F24H1/08

  Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit · CPC title