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Plate-type heat exchanger

Pending Publication Date: 2022-04-07
RINNAI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patent is to provide a plate-type heat exchanger with better heat efficiency and fewer assembly failures.

Problems solved by technology

Consequently, an assembly error tends to occur, which frequently causes misalignment of openings in the adjacent heat exchange units.
The misalignment of openings may cause the heat medium in the internal space to leak out of the heat exchange units.

Method used

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  • Plate-type heat exchanger
  • Plate-type heat exchanger
  • Plate-type heat exchanger

Examples

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Embodiment Construction

[0022]Hereinafter, referring to drawings, a heat exchanger and a heat source device using thereof according to an embodiment of the present invention will be described in detail.

[0023]As illustrated in FIG. 1, a heat source device according to the present embodiment is a water heater that heats water (heat medium) as first fluid flowing into a heat exchanger 1 through an inlet pipe 20, with combustion exhaust gas as second fluid generated in a burner 31 and supplies the heated water to a hot water supplying terminal (not illustrated) such as a faucet or a shower head through an outlet pipe 21. Although not shown, the water heater is accommodated in an outer casing. Other heating medium (for example, an antifreezing fluid) as the first fluid may be used.

[0024]The water heater includes a burner body 3 constituting an outer shell of the burner 31, a combustion chamber 2, the heat exchanger 1, and a drain receiver 40 that are disposed in this order from above. Additionally, the fan casi...

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PUM

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Abstract

A plate-type heat exchanger formed by stacking a plurality of heat exchange units on top of each other, wherein adjacent heat exchange units are stacked such that the internal space in one heat exchange unit and the internal space in another heat exchange unit communicate with each other through a first opening in the one heat exchange unit and a second opening in the other heat exchange unit, the one heat exchange unit includes an insertion wall disposed on a peripheral edge of the first opening and inserted in the second opening when the adjacent heat exchange units are stacked, and the insertion wall has a distal end with a circumferentially discontinuous protrusion height.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a plate-type heat exchanger formed by stacking a plurality of heat exchange units.DESCRIPTION OF THE RELATED ART[0002]Conventionally, a plate-type heat exchanger having a plurality of heat exchange units in which an upper heat exchange plate and a lower heat exchange plate are joined together has been proposed (for example, Japanese Unexamined Patent Publication No. JP 2020-85362 A). Each of the heat exchange units has an internal space through which heat medium flows between the upper heat exchange plate and the lower heat exchange plate, and a plurality of through holes penetrating the internal space in a non-communicating state and through which combustion exhaust gas passes in a vertical direction.[0003]In the plate-type heat exchanger, each of the heat exchange units has at least one opening communicating with the internal space. The openings in adjacent heat exchange units are located opposite each other. In the plat...

Claims

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Application Information

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IPC IPC(8): F28F3/08F28D9/00
CPCF28F3/083F28D9/005F28F3/086F28D21/0007F28D2021/0024F28F21/083F28F2275/04F24D17/00F28D9/0037F24H9/00F24H1/00
Inventor ONO, TAKAHIRO
Owner RINNAI CORP
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