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plate heat exchanger

A technology of plate heat exchangers and heat transfer plates, applied in heat exchange equipment, heat exchanger types, indirect heat exchangers, etc., can solve problems such as high-temperature fluid leakage

Active Publication Date: 2016-11-09
HISAKA WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gasket for forming a flow path through which the high-temperature fluid flows is not double-layered, so the high-temperature fluid may leak to the outside at an early stage due to the progress of oxidation and deterioration of the gasket for forming the flow path.

Method used

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Experimental program
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Effect test

Embodiment approach 1

[0047] refer to figure 1 as well as figure 2 A first embodiment of the plate heat exchanger according to the present invention will be described. However, the description will be given with the same symbols as those of the prior art. In addition, the positions such as up, down, left, and right described in the following description are examples of each embodiment, and of course, in actual usage, they may be different positions.

[0048] Such as figure 1 As shown, the plate heat exchanger of the first embodiment is the same as the prior art, and the first flow path 1 and the second flow path 2 are alternately formed between the heat transfer plates 20 and the heat transfer plates 20, and the first flow path 1 A device that flows high-temperature fluid H and low-temperature fluid C through the second flow path 2 . That is, the first flow path 1 through which the high-temperature fluid H flows and the second flow path 2 through which the low-temperature fluid C flows are a...

Embodiment approach 2

[0067] Below, refer to image 3 A second embodiment of the plate heat exchanger according to the present invention will be described. In addition, the same code|symbol is attached|subjected to the same part as 1st Embodiment, and it demonstrates.

[0068] The plate heat exchanger of the second embodiment has a configuration in which the outer peripheral gasket 33 is inserted along the outer peripheral edge of the heat transfer plate 20 as described in the first embodiment. The outer peripheral gasket 33 not only surrounds the entire circumference of the first flow path forming gasket 31a and the two low temperature fluid communication path forming gaskets 32c, 32c to provide the leakage flow path 4, but also surrounds the second flow path forming gasket. The entire circumference of the sheet 31b and the two spacers 32h and 32h for forming the high-temperature fluid communication path are provided with the leakage flow path 4 .

[0069] That is, the passage holes 23, 24 on th...

Embodiment approach 3

[0078] Below, refer to Figure 4 A third embodiment of the plate heat exchanger according to the present invention will be described through FIG. 6 . In addition, the same code|symbol is attached|subjected and demonstrated about the same part as 1st Embodiment and 2nd Embodiment. also, Figure 5B , Figure 5C It also shows the state where the communication hole 21 is surrounded by the double-layer D pads 41 and 42 inserted between the fixed frame 11 and the D board 20d, Figure 6B , Figure 6C Also shown is a state where the communication hole 22 is surrounded by double-layered D spacers 41 and 42 interposed between the fixed frame 11 and the D plate 20d.

[0079] In the plate heat exchanger of the third embodiment, like the plate heat exchanger of the second embodiment, the outer peripheral gaskets 33 inserted along the outer peripheries of the heat transfer plates 20, 20 surround the first flow path forming gasket 31a and the two gaskets. Gaskets 32c, 32c for forming lo...

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PUM

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Abstract

Heat transfer is achieved by inserting a spacer for forming a flow path on the outer peripheral portion between the stacked heat transfer plates, and inserting a spacer for forming a communication path that alternately surrounds the passage holes of adjacent heat transfer plates. The plates are alternately formed with first flow paths through which high-temperature fluids circulate, second flow paths through which low-temperature fluids flow, and communication paths through which fluids flow in and out of the first flow paths and the second flow paths. Drain holes for draining fluid leaked from the first flow path, the second flow path, or the communication path are formed in the heat transfer plate. The drain hole is surrounded by a gasket that blocks the first flow path, the second flow path, or the communicating path. A leaked liquid flow path or a leaked liquid collection part is formed by the gasket.

Description

[0001] Cross References to Related Applications [0002] This application claims the priority of Japanese Patent Application No. 2011-247552, the content of which is incorporated in the description of this application specification by reference. technical field [0003] The present invention relates to a plate heat exchanger for exchanging heat between a high-temperature fluid and a low-temperature fluid. A plate heat exchanger in which a channel through which a high-temperature fluid flows and a channel through which a low-temperature fluid flows are alternately formed between the heat transfer plates. Background technique [0004] Such as Figure 8 As shown, the plate heat exchanger stacks a plurality of rectangular heat transfer plates 20, 20 in a vertical posture between a rectangular plate-shaped fixed frame 11 in a vertical posture and a rectangular plate-shaped moving frame 12 in a vertical posture. …,Such as Figure 9 As shown, the first flow path 1 and the second ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F3/08F28F3/10
CPCF28F2265/16F28F3/005F28D9/005F28F3/08
Inventor 樋渡功岩城爱楠健司
Owner HISAKA WORKS