KR20030038347A - Heat exchanger and method of manufacturing the same - Google Patents

Abstract

PURPOSE: To provide a method of manufacturing a heat exchanger with good productivity and less pressure loss. CONSTITUTION: A corrugated element 8 is made by bonding a corrugated plate 6, which is formed by working a thin plate in a wave shape, to one side of a heat conductive, thin plate partition member 2, and an opened corrugated 4 is made by cutting and removing the respective crest parts of the corrugated plate 6 of the corrugation element 8. The opened corrugated elements 4 are piled up and bonded together such that flow channels defined by the cut corrugated plates 6 alternately cross each other and extend parallel to each other. The corrugated element is formed in a both side pasteboard structure and is cut horizontally at about a half of a corrugation height of its corrugated plate 6 to make two opened corrugation elements. The opened corrugation elements are piled up and bonded together such that flow channels defined by the cut corrugated plates alternately cross each other and extend parallel to each other.

Description

Heat exchanger and manufacturing method of heat exchanger {HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to heat exchange between fluids, and to a heat exchanger having a laminated structure mainly used in an air conditioner and a manufacturing method thereof.

(Conventional technology)

In recent years, as air conditioners such as heating and cooling have been developed and spread, and as the residential area using air conditioners has been expanded, the importance of an air conditioner electric heat exchanger capable of recovering temperature and humidity in ventilation has increased. As such a total heat exchanger, what is disclosed by Unexamined-Japanese-Patent No. 47-19990, Unexamined-Japanese-Patent No. 54-1054 and 51-2131 is widely employ | adopted, for example. All of these employ a basic structure in which a partition plate having heat transfer and moisture permeability is sandwiched in a plurality of layers with a predetermined interval between the gap holding members. The partition plate is a rectangular flat plate, and the spacing member is a corrugated plate formed by forming a sawtooth wave or sinusoidal wave shape in which the projection plane corresponds to the boundary plate, and the spacing member alternates the direction of the wave between the partition plates. Two system fluid passages are inserted between 90 degrees or an angle close thereto to allow the primary air flow and the secondary air flow to pass through each of these layers.

The characteristics required for the partition plate of the heat exchanger include low air permeability and high heat transfer and moisture permeability. This is so that fresh air sucked into the indoors from the outdoors and dirty air exhausted from the indoors are not mixed when used, and the heat of latent heat can also be exchanged together with the sensible heat. In addition, the space retaining member is a structure that does not directly participate in heat exchange because it secures a fluid passage between partition plates. In addition to the wrinkle processing, a rib structure made of a resin material or a paper material is used. have.

In the above conventional laminated heat exchanger, the spacing member is constituted by corrugation process, wherein the upper and lower collator of the gear shape rotating together with each other to form the material of the spacing member is rotated, and the spacing member is formed of the spacing member. It is possible to continuously produce a single-sided corrugated frame material by using a press roll pressurized while rotating to the material, so that the productivity is high and the manufacturing cost can be kept low, but the wave shape is continuously formed. Since the fluid passage is restricted to this wave shape, it is difficult to promote the reduction of pressure loss.

On the other hand, when the ribs are arranged in parallel to form the spacing member, the spacing of the ribs can be widely adopted in accordance with the setting of the rib strength, so that a fluid passage with less pressure loss can be configured relatively easily, Silver is lower than the space keeping member by the corrugation, and the cost is considerably high.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a heat exchanger having good productivity and low pressure loss, and to easily dispose of the heat exchanger. It is to provide a method of manufacturing a less heat exchanger.

(Means to solve the task)

In order to achieve the above object, the present invention is to further filter the thin plate-shaped fluid shield for heat exchange between the fluid shields by interposing a gap holding member constituting the fluid passage so that the fluid passages by the gap holding member intersect or parallel. In the heat exchanger formed by laminating and forming a polyhedron, the gap maintaining member is constituted by an open corrugated material obtained by processing a corrugated plate made of a corrugated material, and a fluid passage of each layer is a multi-row having a rectangular cross-sectional shape. A means for constructing a collective structure including multiple communication paths is employed.

In order to achieve the above object, the present invention is to further filter the thin gas shield for heat exchange between the gas shields by interposing a gap holding member constituting the fluid passage so that the fluid passages by the gap holding members intersect or parallel. The heat exchanger formed by stacking and forming a polyhedron includes both the gas shielding material and the gap holding member made of a material mainly composed of a paper material, and the gap holding member is formed by processing a corrugated plate made of corrugated material. It consists of a corrugated material, and the means which comprises the fluid path of each layer as an aggregate structure containing the multi-row communication path which made square cross-sectional shape is employ | adopted.

MEANS TO SOLVE THE PROBLEM In order to achieve the said subject, this invention employ | adopts the means which comprises the gap holding member in the means of the said base material with the open wrinkle material which cut | disconnected each top part of the wrinkle material.

MEANS TO SOLVE THE PROBLEM In order to achieve the said subject, this invention employ | adopts the means which comprises the gap holding member in the means of the above-mentioned invention by the open wrinkle material cut | disconnected in about half of the wave height of a wrinkle material.

MEANS TO SOLVE THE PROBLEM In order to achieve the said subject, this invention employ | adopts the means which comprises the space holding member in the means of the said base material from the composite material which mixed 51% or more of paper materials with resin.

MEANS TO SOLVE THE PROBLEM In order to achieve the said subject, this invention makes the wrinkle material which adhered the corrugated board which processed the thin plate into the corrugated board to one surface of the thin-plate-shaped fluid shield which has heat conductivity, and cuts each top part of the corrugated board of this corrugated material. The open corrugation material is removed to form an open corrugation material, and a means for laminating and adhering the fluid corridor by the corrugated plate cut out by further filtering the open corrugation material is adopted.

MEANS TO SOLVE THE PROBLEM In order to achieve the said subject, this invention makes the corrugated board which bonded the corrugated board which processed the thin board into the corrugated board between two fluid shields of the thin plate shape which has heat transfer, and is about half of the wave height of the corrugated board of this corrugated board. Two open corrugations are made to cross at the position, and the two open corrugates are further filtered and a means for laminating and bonding the fluid passages by the cut corrugated board to intersect or parallel is employed.

MEANS TO SOLVE THE PROBLEM In order to achieve the said subject, this invention employ | adopts the means which carried out cutting of the corrugated board in the means of the said base material, and carried out the cutting process which makes it possible to cut | disconnect to the position of about half of a crest.

MEANS TO SOLVE THE PROBLEM In order to achieve the said subject, this invention employ | adopts the means to perform a posture correction by raising the corrugated part of the open corrugation material before lamination | stacking by the means of the said description so that it may become substantially perpendicular to a fluid shield.

1 is a perspective view showing a heat exchanger manufactured by the manufacturing method of Embodiment 1. FIG.

2 is an explanatory diagram showing a manufacturing method of the first embodiment;

3 is a side configuration diagram showing a wrinkle member in the method of manufacturing the first embodiment;

4 is a side configuration diagram showing an open wrinkled material in the production method of the first embodiment;

5 is an explanatory diagram showing a manufacturing method of the second embodiment;

Fig. 6 is a side configuration diagram showing the laminated module in the manufacturing method of the second embodiment.

FIG. 7 is a side configuration diagram showing a lamination module in the manufacturing method according to the third embodiment; FIG.

(Explanation of symbols for the main parts of the drawing)

1: heat exchanger 2: partition member

3: space keeping member 4: open corrugated material

6: corrugated plate 8, 14: corrugated member

10: lamination module 11, 12: fluid passage

13: communication path 15: cutting processing

(Embodiment 1)

This embodiment shown by FIG. 1 thru | or 4 is related with the manufacturing method of the laminated heat exchanger 1 suitable for air control comprised in the hexahedron of a laminated structure as shown in FIG. The heat exchanger 1 obtained by this method comprises a partition member 2 as a gas shield made of a porous material or a non-porous material mainly composed of a thin paper material having heat transfer and moisture permeability. They are sandwiched by a plurality of layers at predetermined intervals and bonded together. The partition member 2 constituting the heat exchanger 1 is composed of a square or rhombus flat plate, and the gap holding member 3 is composed of a porous material or a non-porous material mainly composed of paper or the like and is projected. The corrugated plate portion of the one-side corrugated cardboard structure in which a planar shape is formed with a sawtooth wave shape or a sinusoidal wave shape coinciding with the partition member 2 is formed from the remaining corrugated portion 4 of the open corrugated material 4 cut.

This heat exchanger 1 is manufactured by the method which makes crimp processing a core. That is, as shown in FIG. 2, the raw material of the spacing holding member 3 is sent to the upper and lower collator 5 of the gear shape which rotates in engagement with each other, and is shape | molded by the corrugated plate 6, and the partition member 2 of the The raw material is pressed and adhered to the corrugated plate 6 by a rotating press roll 7 to continuously form the corrugated material 8 having a single side corrugated cardboard structure. Each top portion of the corrugated plate 6 of the corrugated material 8 is cut off with a cutter 9 to form an open corrugated material 4 having no top.

Thereafter, the open corrugation material 4 is cut into the required dimension shape to make the laminated module 10. The laminated module 10 is further filtered to be laminated and bonded so that the fluid passages by the corrugated plate 6 intersect or parallel to each other to form blocks of hexahedron, and the blocks are cut to predetermined dimensions to complete the heat exchanger 1. The corrugated material 8 of one-side corrugated cardboard structure is warped by absorbing moisture in the air, or warped by moisture of an adhesive which is an accommodating medium used for lamination. Therefore, pressing operation is performed in the lamination and bonding step to prevent the occurrence of warpage.

The heat exchanger 1 manufactured in this way comprises a fluid passage 11 and a fluid passage 12 through which primary and secondary air flows, as shown in FIG. Each of the fluid passages 11 and 12 has an aggregate structure in which cross-sectional U-shaped or V-shaped communication passages and cross-sectional square passages 13 are alternately arranged. The opening area of the square communication path 13 becomes wider, and the pressure loss is less than that of the heat exchanger which simply sandwiches the holding member of the corrugated plate between the partition members 2. Therefore, in the case of assembling in the air conditioner, a blower having a small capacity can be employed, so that the air conditioner can be miniaturized. Since it is a manufacturing method which makes wrinkle processing a core, the wrinkle material 8 can be made quick continuously, and productivity is higher and cost can be held down than with the space keeping member by a rib. Cutting the corrugated plate 6 of the corrugated material 8 is easier to perform according to the direction of the corrugated plate because the deformation of the corrugation is less, and the cutting position is 1/4 to 1 of the wave height. It is good to set it as / 2.

In addition, the partition member 2 having no moisture permeability may be used as long as it is sensible heat exchange, and the partition member 2 or the gap holding member 3 may also be formed as a fluid shielding material. Materials and the like. In addition, since the gap holding member 3 is composed of a composite material of a resin (PP resin or the like) having a ratio of 51% or more of paper, the heat exchanger 1 having a high compressive strength is regarded as a paper product. It is easy to discard and can also be provided with recycleability.

(Embodiment 2)

This embodiment shown by FIG. 5 and FIG. 6 relates to the manufacturing method of the heat exchanger 1 comprised from the hexahedron of laminated structure like Embodiment 1. FIG. The manufacturing method of the present embodiment is basically the same as the manufacturing method of the first embodiment except for the method of making the laminated module 10. Therefore, about the same part as Embodiment 1, the code | symbol same as that of Embodiment 1 is used, and the description about them is abbreviate | omitted.

The heat exchanger 1 obtained by the manufacturing method of this embodiment is also the same as that manufactured by the manufacturing method shown in Embodiment 1. The characteristic of the manufacturing method of this heat exchanger 1 is the method of manufacturing the laminated module 10. FIG. That is, the corrugation board 14 of the double-sided corrugated board structure which bonded the corrugated board 6 which shape | molded the space | interval holding member 3 to the corrugated board between two partition members 2 as shown in FIG. And spread it out with a cutter 19 at about half the position of the corrugation plate 6 of the corrugated plate 14, to make two open corrugated members 4, and then to the laminated module 10. do.

By adopting the method of making this laminated module 10, waste material hardly comes out and cutting is easy since rigidity is high as a double-sided corrugated cardboard structure. Along with the molding process of the gap holding member 3 to the corrugated plate, the cutting process is facilitated by subjecting the cutting process 15 to a state capable of cutting by sewing machine eyes or the like at about half the position of the crest. It can also be performed quickly. The lamination and subsequent steps of the lamination module 10 are the same as in the manufacturing method of the first embodiment.

(Embodiment 3)

In this embodiment shown by FIG. 7, after forming the laminated module 10 in the manufacturing method of the heat exchanger shown in Embodiment 1 or 2, the corrugated part of the open corrugated material 4 is divided into the partition members 2 The posture correction process is added so that it is approximately perpendicular to the. The manufacturing method of the present embodiment is basically the same as the manufacturing method shown in the first and second embodiments except for the posture correcting step of the laminated module 10. Therefore, about the same part as Embodiment 1 or Embodiment 2, the code | symbol same as that of Embodiment 1 or Embodiment 2 is used, and the description about them is abbreviate | omitted.

By vertically crushing the broken wave portion of the stacking module 10 by the posture correcting process, the cross-sectional shape of the communication paths 13 of the respective fluid passages 11 and 12 can be made into a quadrangle so that the fluid passage 11 12) The heat exchanger 1 with little pressure loss as a whole is obtained.

According to the present invention, a heat exchanger having a low pressure loss is obtained, and a heat exchanger having a low pressure loss can be easily obtained, and a heat exchanger having high productivity with the above effects is obtained.

In addition, according to the present invention, a heat exchanger having high productivity without waste material is produced with the above effects, and is easily disposed of, and a heat exchanger having high compressive strength is obtained.

In addition, the heat exchanger having a low pressure loss can be manufactured well with good productivity, and the waste material can be made almost impossible.

In addition, since the cutting of the corrugated portion is smoothed with the above effects, the machining speed can be increased, and a heat exchanger having a low pressure loss can be obtained together with the above effects.

Claims (3)

The thin fluid shield for heat exchange is further interposed between the fluid shields with a gap retaining member constituting the fluid passage therebetween so that the fluid passages by the gap retaining members intersect or parallel to each other, and constitute a polyhedron. In the heat exchanger, The said spacing member is comprised by the open corrugated material which processed the corrugated board by the corrugated material, and the said fluid path | pass of each layer contains the multi-row communication path which made the square cross-sectional shape. A heat exchanger characterized in that configured as a collective structure. In the heat exchanger composed of a polyhedron, a thin gas shield for heat exchange is laminated so as to intersect or parallel the gap retaining members constituting the fluid passage between the gas shields, and the fluid passages by the gap retaining members intersect or parallel. Any of the gas shield and the gap holding member is composed of a material mainly composed of a paper material, and the gap holding member is composed of an open wrinkle material treated by a corrugated plate by a wrinkle material, A heat exchanger comprising a fluid passage as a collective structure including a multi-row communication path having a rectangular cross-sectional shape. A corrugated plate obtained by processing a corrugated sheet formed of a corrugated sheet into a corrugated sheet is formed between two fluid shields of a thin plate shape having heat transfer properties, and the corrugated sheet is crossed at about half the position of the crest of the corrugated sheet of the corrugated sheet, and two open corrugates are formed. A method of manufacturing a heat exchanger, comprising: making ash, filtering the two open corrugates further, and laminating and bonding the fluid passages by the cut corrugated plate to intersect or parallel.