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Plate heat exchanger

A plate heat exchanger, the first fluid technology, applied in the direction of heat exchange equipment, indirect heat exchangers, fluid heaters, etc., can solve heating and other problems

Pending Publication Date: 2021-04-16
RINNAI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the upstream region of the gas flow path of the combustion exhaust gas through which the high-temperature combustion exhaust gas flows, the heat exchange on the downstream side, that is, the portion of the heat exchanger on the downstream side that faces the through hole of the heat exchanger on the upstream side, The projection surface in the volume is heated intensively, and there is a problem of localized heating

Method used

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  • Plate heat exchanger
  • Plate heat exchanger
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Embodiment Construction

[0024] Hereinafter, a plate heat exchanger according to the present embodiment and a heat source machine including the plate heat exchanger will be specifically described with reference to the drawings.

[0025] Such as figure 1 As shown, the heat source machine according to this embodiment heats the water (first fluid) flowing into the heat exchanger 1 from the inflow pipe 20 with the combustion exhaust gas (second fluid) generated by the burner 31, and passes the The outflow pipe 21 is supplied to a water heater on a hot water user side (not shown), such as a faucet or a shower. Although not shown, the water heater is assembled in the case. In addition, other heat media (such as antifreeze) may also be used as the first fluid.

[0026] In this water heater, the burner main body 3 constituting the outer shell of the burner 31 , the combustion chamber 2 , the heat exchanger 1 , and the drain receiver 40 are disposed in order from above. In addition, on one side of the burne...

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Abstract

The invention provides a plate heat exchanger in which adjacent heat exchange bodies (10) are formed such that the projection surface (55) of a through-hole (13) of one heat exchange body (10) does not overlap with the through-hole (13) of the other heat exchange body (10), a plurality of heat exchange bodies (10) are provided with heat exchange bodies (P) having fluctuations in the height of the flow path of a first fluid on the projection surface (55); and a heat exchange body (Q) having a planar part (19) on the projection surface (55), the planar part (19) having a substantially constant height of the flow path of the first fluid. At least a second heat exchange body (10b) adjacent to the downstream side of the most upstream heat exchange body (10a) located at the most upstream of the flow path of the second fluid is configured from the heat exchange body (Q).

Description

technical field [0001] The invention relates to a plate heat exchanger, which has a plurality of heat exchanging bodies, and the heat exchanging bodies perform heat exchange between a first fluid flowing inside and a second fluid flowing outside. The heat exchanger is formed by stacking a plurality of heat exchange bodies. Background technique [0002] Conventionally, there has been proposed a plate heat exchanger including a plurality of heat exchange bodies in which an upper heat exchange plate and a lower heat exchange plate are bonded (for example, Korean Registered Patent No. 10-1608149). Each heat exchange body has: an internal space in which a heat medium as a first fluid flows between the upper heat exchange plate and a lower heat exchange plate; Multiple vias for flow in the direction. [0003] The plate heat exchanger is configured by stacking a plurality of blocks having at least one heat exchanging body in the vertical direction. In addition, blocks adjacent t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F3/04F24H9/18
CPCF28D9/005F28F3/044F28D9/0006F28D9/0031F28F3/04F28D9/0056F28F3/086F28D9/02
Inventor 小野贵大
Owner RINNAI CORP