KR20190038968A - Printed circuit heat exchange module and heat exchanger - Google Patents

Abstract

The present invention relates to a printed type heat exchange module, comprising: a plurality of electric heat plates formed in a circle shape or a partial circle shape, and stacked in multiple stages; an injection header for supplying a fluid from the outside to the electric heat plates; a plurality of flow paths which are formed on each of the electric heat plates, and in which the fluid supplied from the injection header moves; and a discharge header for discharging the fluid which has passed through the flow paths. Moreover, the flow paths are formed in the same length.

Description

[0001] PRINTED CIRCUIT HEAT EXCHANGE MODULE AND HEAT EXCHANGER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a print type heat exchange module and a heat exchanger in a laminated form thereof.

The reactor requires a heat exchanger to use heat generated from the core, regardless of the furnace type. Typical heat exchangers include a steam generator and an intermediate heat exchanger. Steam generators are used in light water reactors, hot gas furnaces, and liquid metal furnaces. The intermediate heat exchanger is used in a hot gas or superheated gas furnace, and the secondary coolant is characterized by using helium instead of water. The steam generator and the intermediate heat exchanger are mainly used in the perfusion type. The secondary side cooling water is evaporated while flowing through the inside of the pipe. Intermediate heat exchange air ducts in hot gas furnaces are mainly used. However, the flow-through type steam generator and the heat exchanger have limitations in manufacturing a small volume.

There is a printed heat exchanger in a manner complemented by these disadvantages. The print type heat exchanger is manufactured by preliminarily processing a flat plate by chemical etching and combining a plurality of plates in which a flow path is formed. Typical industrial printing type heat exchangers are mainly designed / manufactured as a single module. Such a printed heat exchanger can be made compact in a state of having a dense structure, and has a merit that a design suitable for a high temperature / high pressure condition can be made.

No. 10-2017-0042759 (hereinafter referred to as "Prior Art") discloses a heat transfer plate having a cut side and a port formed therein, and a heat exchanger in which the heat transfer plate is laminated . However, the prior art discloses only a single heat exchanger in which a plurality of heat transfer plates are stacked, and it has not been recognized that a problem of forming a single heat exchanger as a unit body and stacking it according to the capacity has not been confirmed.

Korean Patent Publication No. 10-2017-0042759

It is an object of the present invention to provide a small heat exchange module that can be easily incorporated into a heat exchanger having a limited cross section.

It is another object of the present invention to provide a heat exchange module capable of stacking and separating according to capacity and a heat exchanger including the same.

The present invention also provides a heat exchange module that is easy to repair and repair, and a heat exchanger including the same.

A printing type heat exchange module according to an embodiment of the present invention includes: a plurality of heat transfer plates that are circular or partially circular and are stacked in a multi-stage; An injection header for supplying fluid from the outside to the plurality of heat transfer plates; A plurality of flow paths formed in the plurality of heat transfer plates, respectively, and through which the fluid supplied from the injection header moves; And a discharge header for discharging the fluid that has passed through the flow path, wherein the plurality of flow paths are formed to have the same length.

A printing type heat exchange module according to an embodiment of the present invention includes: a plurality of heat transfer plates that are circular or partially circular and are stacked in a multi-stage; An injection header for supplying fluid from the outside to the plurality of heat transfer plates; A plurality of flow paths formed in the plurality of heat transfer plates, respectively, and through which the fluid supplied from the injection header moves; And a discharge header for discharging the fluid that has passed through the flow path, wherein adjacent ones of the plurality of flow paths are interconnected through a channel.

A printing type heat exchange module according to an embodiment of the present invention includes: a plurality of heat transfer plates that are circular or partially circular and are stacked in a multi-stage; An injection header for supplying fluid from the outside to the plurality of heat transfer plates; A plurality of flow paths formed in the plurality of heat transfer plates, respectively, and through which the fluid supplied from the injection header moves; And a discharge header for discharging the fluid that has passed through the flow path, wherein at least one flow path of the plurality of flow paths has an orifice shape at one end connected to the injection header.

Further, a heat exchange module according to an embodiment of the present invention further includes a casing defining an outer wall of the heat exchange module, wherein the casing comprises: a first case made of a heat insulating material; And a second case made of a pressure-resistant material and disposed outside the first case.

In addition, the plurality of heat transfer plates may be laminated through a diffusion bonding method.

The injection header may be formed at a predetermined position of each of the plurality of heat transfer plates stacked in a multi-stage.

In addition, the channel may have a width of 500 to 3500 micrometers in cross section.

In addition, the discharge header may be formed at a predetermined position of each of the plurality of heat transfer plates stacked in a multi-stage.

In a heat exchanger in which a plurality of print heat exchange modules according to an embodiment of the present invention are stacked, a plurality of connection tubes are penetrated and connected to adjacent heat exchange modules among the plurality of print heat exchange modules.

The heat exchange module according to an embodiment of the present invention includes a heat transfer plate provided in a circular or partially circular shape and stacked, and can be embedded in a pressure vessel having a narrow space, thereby increasing the efficiency of space utilization.

In addition, the heat exchange module according to the embodiment of the present invention has an advantage that diffusion bonding can be performed in a small flow path compared to a conventional rectangular heat transfer plate through a heat transfer plate provided in a circular or partially circular shape.

Further, the heat exchange module according to the embodiment of the present invention has an advantage that it can be easily applied to a facility requiring a design change or a heat exchange of a large capacity by increasing the capacity through stacking in the longitudinal direction.

In addition, the heat exchange module according to the embodiment of the present invention has the advantage that the number of connecting pipes and inlet pipes required for stacking is reduced, thereby minimizing the welded area, thereby improving the vulnerability at high pressure.

1 is a perspective view of a heat exchange module according to an embodiment of the present invention.
2 is a cross-sectional view of a heat exchange module according to an embodiment of the present invention.
3 is a top view of a heat exchange module according to an embodiment of the present invention.
4 is a heat transfer plate having flow paths of the same length according to the embodiment of the present invention.
5 is a heat transfer plate having inter-channel channels formed according to another embodiment of the present invention.
6 is a heat transfer plate including an orifice formed in accordance with another embodiment of the present invention.
FIG. 7 is an enlarged view of FIG. 6A.
8 is a perspective view of a heat exchange module according to another embodiment of the present invention.
9 is a heat exchanger according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the exemplary embodiments. Like reference numerals in the drawings denote members performing substantially the same function.

The objects and effects of the present invention can be understood or clarified naturally by the following description, and the purpose and effect of the present invention are not limited by the following description. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The heat exchange modules 10 and 20 according to the embodiment of the present invention can be easily provided in a small size as a print type heat exchange module and can be stacked in multiple stages in a unit with the heat exchange modules 10 and 20 according to the required heat exchange capacity Heat exchanger < RTI ID = 0.0 > 1 < / RTI >

1 is a perspective view of a heat exchange module 10 according to an embodiment of the present invention. 2 is a cross-sectional view of a heat exchange module 10 according to an embodiment of the present invention. 3 is a top view of a heat exchange module 10 according to an embodiment of the present invention. 1 to 3, the heat exchange module 10 includes a heat transfer plate 11a, an injection header 12, a flow path 13, and a discharge header 14. In addition, the heat exchange module 10 may include a casing 15.

The heat transfer plate 11 is circular or partially circular, and can be stacked in multiple stages.

In this embodiment, the heat transfer plate 11 can be understood as a basic unit of the heat exchange module 10. The heat transfer plate 11 may be provided in a circular shape having a plurality of through holes. The heat transfer plate 11 is provided in a circular or partially circular shape, and can be efficiently embedded in a cylindrical pressure vessel. The heat transfer plate 11 may be multi-layered in the form of aligned outer peripheral surfaces. The heat transfer plate 11 may have a plurality of through holes.

A plurality of heat transfer plates 11 may be stacked through a diffusion bonding method.

In this embodiment, the heat transfer plate 11 may be formed with a channel 13 by a chemical etching method. The heat transfer plates 11 on which the flow paths 13 are formed can be bonded to each other through a diffusion bonding method and stacked in multiple stages. The heat transfer plate 11 can be utilized with respect to a plurality of through holes for alignment during diffusion bonding. Accordingly, the adjacent heat transfer plates 11 are not required to have an additional structure for interconnection, and can be provided with excellent durability under high temperature / high pressure conditions since they are less deformed by heat or stress after bonding.

The injection header 12 can supply a plurality of heat transfer plates 11 with fluid.

In this embodiment, the injection header 12 can be supplied with fluid from the outside to supply the fluid to each of the plurality of heat transfer plates 11. The injection header 12 can be understood as a through hole formed in the heat transfer plate 11. [ The injection header 12 is connected to the flow path 13 to supply the fluid to the respective flow paths 13.

The injection header 12 may be formed at a predetermined position of each of the plurality of heat transfer plates 11 stacked in a multi-stage.

In this embodiment, the injection header 12 may be formed at the same position of each of the plurality of heat transfer plates 11 arranged in parallel with the outer circumferential surfaces to form a single through-hole. That is, the heat exchange module 10 may have a plan view in which some through holes are formed in a single circular shape. Each injection header 12 formed at the same position can be utilized as a reference for alignment at the time of diffusion bonding of the heat transfer plate 11. [ The injection header 12 may be connected to the connection pipe 16 when the heat exchange module 10 is stacked.

A plurality of flow paths 13 are formed in each of the plurality of heat transfer plates 11, and the fluid supplied from the injection header 12 can move.

In this embodiment, the flow path 13 can be formed for the movement of the fluid on the heat transfer plate 11. The flow path 13 may be connected to the injection header 12. The flow path 13 may be connected to the discharge header 14. The flow path 13 may be formed in plural. The flow path 13 formed in each of the heat transfer plates 11 may be different. The flow path 13 may be provided in a circular or elliptical shape in cross section. As shown in FIG. 3, the flow path may be connected from a single injection header 12 to a single discharge header 14. That is, all the headers formed on the heat transfer plate 11 can be connected through the flow path 13. In the following examples, some of the entire flow paths are representatively shown in order to specifically describe the characteristics of the flow paths, but actual flow paths are also formed in the regions where the flow paths are omitted in the drawing.

The width of the flow path 13 may be 500 to 3500 micrometers.

In this embodiment, the heat transfer plate 11 can be diffusion-bonded after the flow path 13 is formed. Accordingly, the width of the flow path 13 can be limited to such a size that the change of the heat transfer plate 11 is not induced at the time of bonding. The cross section of the flow path 13 may be formed by a chemical etching method and provided with a width within 3 mm. The flow path 13 may be provided with a width of about 1 mm or so.

The discharge header 14 can discharge the fluid that has passed through the flow path 13.

In this embodiment, the discharge header 14 may be connected to each of the flow paths 13. The discharge header 14 may be part of the through-holes formed in the heat transfer plate 11. [ The discharge header 14 can discharge the fluid that has passed through the flow path 13 to the outside of the heat transfer plate 11. [

The discharge header 14 may be formed at a predetermined position of each of the plurality of heat transfer plates 11 stacked in a multi-stage.

In this embodiment, the discharge header 14 may be formed at the same position of each of the plurality of heat transfer plates 11 arranged in parallel with the outer circumferential surfaces to form a single through-hole. That is, the heat exchange module 10 may have a plan view in which some through holes are formed in a single circular shape. Each discharge header 14 formed at the same position can be utilized as a reference for alignment at the diffusion bonding of the heat transfer plate 11. [ The discharge header 14 may be connected to the connection pipe 16 when the heat exchange module 10 is stacked.

The casing 15 may define an outer wall of the heat exchange module 10.

In this embodiment, the casing 15 can be defined as an outer wall for protecting the heat transfer plate 11. The casing 15 can be understood as a constituent included for the stability of the heat exchange module 10.

The casing 15 may include a first case 151 and a second case 153.

The first case 151 may be made of a heat insulating material. The first case 151 may be separated from the heat transfer plate 11 by a predetermined distance or more. The first case 151 may be provided with a heat insulating material and may be provided in multiple layers. The first case 151 may be provided as a heat insulating material usable at 900 DEG C or higher. The first case 151 may be made of stainless steel.

The second case 153 is made of a pressure-resistant material and can be disposed outside the first case 151. The second case 153 may be provided to cut off pressure transmitted to the first case 151. The second case 153 may be provided with a material available at a temperature of around 380 ° C. The second case 153 may be provided with materials such as SA508 and SA533.

On the other hand, referring to FIG. 4, each of the plurality of flow paths 13a may have the same length.

In this embodiment, the plurality of flow paths 13a can connect the injection header 12 and the discharge header 14, and each can form a length within a predetermined error range. The path 13a is not limited in path or length and can be provided in various forms on the heat transfer plate 11a. For example, the flow path 13a may be formed in an arc shape. As another example, the flow path 13a may be formed to have a zigzag path. However, each of the plurality of flow paths 13a has a length from the injection header 12 to the discharge header 14 within a predetermined error range, and the movement time of the fluid injected from the outside is within the error range, An error in the timing of the fluid discharge injected into the same injection header 12 and moved to the different flow path 13a can be minimized.

5 to 7, the heat exchange module 10 including the heat transfer plates 11b and 11c in which different flow paths 13b and 13c are formed will be described. 5 is a heat transfer plate 11b in which a channel 135 is formed between the flow paths 13b according to another embodiment of the present invention. 5, the adjacent flow paths 131 and 133 among the plurality of flow paths 13b may be connected to each other through the channel 135. As shown in FIG.

In this embodiment, the plurality of flow paths 13b may be connected from the injection header 12 to the discharge header 14. [ The plurality of flow paths 13b may be formed to have different lengths. The plurality of channels 13b may be connected to each other by forming channels 135 between adjacent channels. In detail, the first flow path 131, which is located on the outer side relative to the circumferential direction, may be formed longer than the second flow path 133 located on the relatively inner side. In addition, the first flow path 131 located relatively outside may be formed to be shorter than the second flow path 133 located relatively inward. However, the fluids to be injected, moved and discharged from the first and second flow paths 131 and 133 having different lengths must exhibit the same flow, and the channels 135 are formed in the respective flow paths, The fluid can be moved between the second flow paths 133, and a single flow can be generated.

6 is a heat transfer plate 11c having an orifice 137 formed at one end of the flow path 13c according to another embodiment of the present invention. FIG. 7 is an enlarged view of FIG. 6A. Referring to FIGS. 6 and 7, at least one flow path of the plurality of flow paths 13c may have an orifice 137 formed at one end thereof connected to the injection header 12.

In this embodiment, the plurality of flow paths 13c may be provided in different lengths. Each of the flow paths 13c can be formed independently. A part of the flow path 13c is formed with an orifice 137 at a predetermined distance from the inflow header 12 to a predetermined distance so that the fluid introduced from the infusion header 12 flows into the flow path 13c at a high pressure, . ≪ / RTI > The fluid outside the region of the orifice 137 may enter the extended flow path 13c and the pressure may drop. A part of the flow path 13c including the orifice 137 is formed to have a longer length from the injection header 12 to the discharge header 14 than the other flow path and the pressure through the orifice 137 And speed compensation are required. The flow of the fluid injected into the same injection header 12 and discharged to the same discharge header 14 through the respective flow paths 13c can be minimized with respect to the time during which the fluid passes through the heat transfer plate 11c.

8 is a perspective view of a heat exchange module 20 according to another embodiment of the present invention. Referring to Fig. 8, the heat transfer plate 21 is provided in a partial circle and can be stacked in multiple stages.

In this embodiment, the heat transfer plate 21 may be provided in an isosceles trapezoidal shape composed of a base and an upper side arc. That is, the heat transfer plate 21 may be provided in the shape of a part of a circular plane. This can be changed depending on the space inside the apparatus in which the heat exchange module 20 is installed. As described above, the heat transfer plates 21 can be provided in an aligned state in which the heat transfer plates of the same size are stacked in multiple stages. Each heat transfer plate 21 may be formed with a through hole including an injection header 22 and a discharge header 24. Each of the heat transfer plates 21 may be formed with a plurality of flow paths, and the lengths of the flow paths may be differently applied depending on design variations. However, the fluid that is injected through the same injection header 22 and discharged to the same discharge header 24 must be minimized in the time of passage through the heat transfer plate 21.

9 is a heat exchanger according to an embodiment of the present invention.

The heat exchanger 1 is provided with a plurality of heat exchange modules 10 stacked, and the adjacent heat exchange modules 10 are connected through a connection pipe 16. [ The description of the adjacent heat exchange module 10 will be made in the following description.

The first heat exchange module may be disposed below.

In this embodiment, the first heat exchange module may be provided in the form of the heat exchange module 10 described above. The first heat exchange module is defined to constitute the heat exchanger 1. The first heat exchange module may be disposed below the adjacent heat exchange modules 10, and the connection pipe 16 may be connected to the heat transfer plate 11 stacked on the uppermost layer. In the first heat exchange module, the connection pipe 16 may be inserted into each through hole of the uppermost heat transfer plate 11, and the connection pipe 16 may be welded for easy use under high temperature / high pressure conditions.

The connection pipe 16 may be introduced into the inlet header 12 and the outlet header 14 of the first heat exchange module 10.

In this embodiment, the connection pipe 16 is penetrated into the inlet header 12 and the outlet header 14 of the first heat exchange module, and a support for connecting the respective heat exchange modules 10 and a connection It can serve as a pathway. It is preferable that the length of the connecting pipe 16 disposed between the respective heat exchange modules 10 is maintained to be the same, and the stability of the heat exchanger 1 can be ensured through the same. Further, the connection pipe 16 can be used under the condition of high temperature / high pressure and can be provided in a pipe form so that the fluid can easily move into the inside. The connection pipe 16 may be provided larger than the diameter of the through-hole of the heat transfer plate 11, and in this case, it may be connected to each heat exchange module 10 through welding without penetration. As described above, the size and shape of the connection pipe 16 are not limited, and can be provided in a form of inducing the movement of the fluid between the heat exchange module 10 and the lamination of the heat exchange module 10.

The second heat exchange module is disposed above the first heat exchange module, and the connection pipe 16 can be penetrated into the lower portion.

In this embodiment, the second heat exchange module may be provided in the form of the heat exchange module 10 described above. The second heat exchange module is defined to constitute the heat exchanger 1. The second heat exchange module is disposed on the upper portion of the first heat exchange module, and the connection pipe (16) can be connected to the heat transfer plate (11) disposed at the lowermost end. In the second heat exchange module, the connection pipe 16 can be inserted into each through hole of the lowermost heat transfer plate 11, and the connection pipe 16 can be welded for easy use under high temperature / high pressure conditions.

As such, adjacent heat exchange modules 10 are connected to the connection tube 16, so that selective removal and addition of the heat exchange module 10 may be possible in accordance with the environment in which the pressure vessel is used. In addition, when the heat exchange module 10 is required to be repaired, easy maintenance can be achieved by disassembling the portion connected through the connection pipe 16. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. will be. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by all changes or modifications derived from the scope of the appended claims and equivalents of the following claims.

1: Heat exchanger
10, 20: Heat exchange module
11, 11a, 11b, 11c, 21:
12, 22: injection header
13, 13a, 13b, 13c:
131: First Euro
133: 2nd Euro
135: channel
137: Orifice
14, 24: Discharge header
15: casing
151: First case
153: Second case
16: Connector
161: Injection tube
163:

Claims (9)

A plurality of heat transfer plates each having a circular or partially circular shape and stacked in multiple stages;
An injection header for supplying fluid from the outside to the plurality of heat transfer plates;
A plurality of flow paths formed in the plurality of heat transfer plates, respectively, and through which the fluid supplied from the injection header moves; And
And a discharge header for discharging the fluid that has passed through the flow path,
Wherein the plurality of flow paths
A printed heat exchange module formed with the same length.
A plurality of heat transfer plates each having a circular or partially circular shape and stacked in multiple stages;
An injection header for supplying fluid from the outside to the plurality of heat transfer plates;
A plurality of flow paths formed in the plurality of heat transfer plates, respectively, and through which the fluid supplied from the injection header moves; And
And a discharge header for discharging the fluid that has passed through the flow path,
And an adjacent flow path of the plurality of flow paths,
Printed heat exchange modules interconnected through channels.
A plurality of heat transfer plates each having a circular or partially circular shape and stacked in multiple stages;
An injection header for supplying fluid from the outside to the plurality of heat transfer plates;
A plurality of flow paths formed in the plurality of heat transfer plates, respectively, and through which the fluid supplied from the injection header moves; And
And a discharge header for discharging the fluid that has passed through the flow path,
Wherein at least one of the plurality of flow paths includes:
And an orifice shape is formed at one end connected to the injection header.
4. The method according to any one of claims 1 to 3,
Further comprising a casing defining an outer wall of the heat exchange module,
The casing includes:
A first case made of a heat insulating material; And
And a second case made of pressure-resistant material and disposed outside the first case.
4. The method according to any one of claims 1 to 3,
The plurality of heat transfer plates
A printable heat exchange module laminated via diffusion bonding.
4. The method according to any one of claims 1 to 3,
Wherein the injection header comprises:
A printed heat exchange module formed at a predetermined position of each of the plurality of heat transfer plates laminated in multiple stages.
4. The method according to any one of claims 1 to 3,
The flow path includes:
Wherein the width of the cross section is 500 to 3500 micrometers.
4. The method according to any one of claims 1 to 3,
The discharge header
A printed heat exchange module formed at a predetermined position of each of the plurality of heat transfer plates laminated in multiple stages.
A heat exchanger in which a plurality of printing type heat exchange modules according to any one of claims 1 to 3 are laminated,
Wherein adjacent heat exchange modules among the plurality of print heat exchange modules comprise:
A laminated heat exchanger in which a plurality of connection tubes are intruded and interconnected.

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