Heat exchange system with siphon for draining a condensate

Patent metadata

Field	Value
Publication number	US-2020263902-A1
Application number	US-201615781468-A
Country	US
Kind code	A1
Filing date	Dec 6, 2016
Priority date	Dec 14, 2015
Publication date	Aug 20, 2020
Grant date	—

Abstract

A heat exchanger system includes a heat exchange main unit having a gas channel and a fluid channel configured such that a fluid in the fluid channel can exchange heat with a flue gas in the gas channel, a housing, a drain collecting part arranged to collect condensate from the flue gas, and a siphon attached to the drain collecting part to prevent release of the flue gas from a condensate outlet. The siphon has a tubular body, first portion having a condensate inlet, and second portion having the condensate outlet and an operation member. When the tubular body is attached to the drain collecting part, the first portion is connected to the drain collecting part, the first and second portions can be at least partially located inside and outside the housing, and the operation member can be located outside the housing. The first and second portions are detachably attached.

First claim

1 . A heat exchanger system comprising:
a heat exchange main unit having a gas channel and a fluid channel configured such that a fluid in the fluid channel can exchange heat with a flue gas in the gas channel in use, a housing accommodating the heat exchange main unit; a drain collecting part arranged inside the housing to collect condensate from the flue gas; and a siphon attached to the drain collecting part to prevent release of the flue gas from a condensate outlet formed therein, the siphon having a tubular body attached to the drain collecting part, a first portion, and a second portion, the first portion having a condensate inlet, the second portion having the condensate outlet and an operation member, the tubular body being configured such that, when the tubular body is attached to the drain collecting part,
the first portion is connected to the drain collecting part and can be at least partially located inside the housing,
the second portion can be at least partially located outside the housing, and
the operation member can be located outside the housing,
the second portion being detachably attached to the first portion.

2 . The heat exchanger system according to claim 1 , wherein
the siphon further has a passage portion configured to be accommodated in the tubular body and to be detachably attached to the tubular body.

3 . The heat exchanger system according to claim 2 , wherein
at least one spacer is arranged between an inner surface of the tubular body and an outer surface of the passage portion.

4 . The heat exchanger system according to claim 3 , wherein
the at least one spacer is arranged on the outer surface of the passage portion.

5 . The heat exchanger system according to claim 2 , wherein
the passage portion is configured to form a condensate passage including an outer passage and an inner passage, the outer passage is formed between an outer surface of the passage portion and an inner surface of the tubular body, and the inner passage is formed along the inner surface of the passage portion.

6 . The heat exchanger system according to claim 5 , wherein
the passage portion has a blind-ended tubular shape.

7 . The heat exchanger system according to claim 6 , wherein
the first portion includes a tubular member configured to be located inside the passage portion and to divide the inner passage into a core passage and a middle passage, the core passage is formed by the inner surface of the tubular member, and the middle passage is formed between the outer surface of the tubular member and the inner surface of the passage portion.

8 . The heat exchanger system according to claim 7 , wherein
the tubular member is configured such that the core passage starts at the condensate inlet on the first portion, and the tubular body and the passage portion are configured such that the outer passage ends at the condensate outlet of the second portion.

9 . The heat exchanger system according to claim 1 , wherein
the operation member includes is a grip, and a slip prevention structure is formed on a surface of the grip.

10 . The heat exchanger system according to claim 9 , wherein
the slip prevention structure includes at least one of a groove and a projection formed on the surface of the grip.

11 . The heat exchanger system according to claim 6 , wherein
the second portion includes a tubular member configured to be partially located inside the passage portion and to divide the inner passage into a core passage and a middle passage, the core passage is formed by the inner surface of the tubular member, and the middle passage is formed between the outer surface of the tubular member and the inner surface of the passage portion.

12 . The heat exchanger system according to claim 11 , wherein
the second portion further has a supporting body to which the tubular member is detachably attached and by which the tubular member is supportable.

13 . The heat exchanger system according to claim 11 , wherein
the second portion and the passage portion are integrally formed with each other.

14 . The heat exchanger system according to claim 1 , wherein
the first portion and second portion are configured to be detachably attached to each other by corresponding threads formed on respective sides thereof.

15 . The heat exchanger system according to claim 3 , wherein
the passage portion is configured to form a condensate passage including an outer passage and an inner passage, the outer passage is formed between the outer surface of the passage portion and the inner surface of the tubular body, and the inner passage is formed along the inner surface of the passage portion.

16 . The heat exchanger system according to claim 15 , wherein
the passage portion has a blind-ended tubular shape.

17 . The heat exchanger system according to claim 4 , wherein
the passage portion is configured to form a condensate passage including an outer passage and an inner passage, the outer passage is formed between the outer surface of the passage portion and the inner surface of the tubular body, and the inner passage is formed along the inner surface of the passage portion.

18 . The heat exchanger system according to claim 17 , wherein
the passage portion has a blind-ended tubular shape.

Assignees

• Daikin Ind Ltd
• Daikin Europe Nv

Inventors

• Kilic Serhan M
• Peker Hakan
• Akyol Abdulkadir

Classifications

• F28F17/005

  Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence) · CPC title

• B01D2258/0283

  Flue gases · CPC title

• F28D2021/0024

  for combustion apparatus, e.g. for boilers · CPC title

• F24H9/0026

  in combustion gas channels · CPC title

• F24H8/006 Primary

  Means for removing condensate from the heater · CPC title