WO2014025117A1 - Heating element for use in heat exchangers, and expanded polypropylene resin-type heat exchanger using heating element and heating element manufacturing method - Google Patents

Abstract

The present invention relates to a heating element for use in heat exchangers, and to an expanded polypropylene resin-type heat exchanger using a heating element and a heating element manufacturing method. The present invention comprises: a method for manufacturing a heating element having excellent insulation and heat transfer properties; the heating element manufactured using same; a heat exchanger main body divided into upper and lower cases using same; intake and exhaust induction pipes forming connections, such as various types of flanged pipes for connecting ducts or back draft dampers for preventing back drafts, which are selectively coupled to the main body; and a blocking plate forming a closed end plate and the like are injection molded using an ABS or expanded polypropylene (EPP) resin in order to produce the heat exchanger. Accordingly, in comparison to heat exchangers of the related art: the generation of noise and vibration can be inhibited; corrosion of the main body caused by vaporization and liquefaction during heat transfer can be prevented; heat transfer efficiency can be significantly improved so as to impart excellent insulation properties; and maintenance and variable installation can be significantly improved due to the facilitation of partial block-type attachment and detachment of a partition panel to an intake and exhaust passage zone even during a follow-up service particularly involving a change in an intake and exhaust line or a change in the diameter of a pipe connection or an intake and exhaust induction pipe.

Description

Method for manufacturing heat transfer element and heat transfer element for heat exchanger and foamed polypropylene resin type heat exchanger using heat transfer element

The present invention is a method for manufacturing a heat transfer element for a heat exchanger and a heat transfer manufactured from the same to obtain a heat transfer element excellent in insulation and heat exchange properties of the heat transfer element by coating a liquid copper on both sides of the paper material made of a fiber material Element, and an intake and exhaust induction pipe forming a connection port such as a flange pipe for connecting various ducts or a back draft damper for preventing the backwind, which is coupled to the main body of the total heat exchanger divided into upper and lower cases, and the main body by using the same; The blocking plate forming the finishing plate for injection is injection molded using ABS or EPP (Expanded Poly Propylene) foamed resin to obtain a heat exchanger, and thus suppresses the occurrence of noise and vibration compared to the previous heat exchanger. It prevents corrosion of the main body by vaporization and liquefaction that occurred during heat exchange, and excellent insulation The heat exchange efficiency can be greatly improved, and the partition panel and the partition wall can be partitioned and assembled according to the supply / exhaust flow zone, and according to the change of the supply / exhaust line or the change of the diameter of the pipe connection or the intake / exhaust pipe, In the post-management, a partial block type of the partition panel for the supply / exhaust flow zone is easily attached and detached, and maintenance and variable installation are greatly improved. It relates to a resin type total heat exchanger.

The electrothermal heat exchanger is a device that transfers the enthalpy of the exhaust air to the intake air by passing the supply air and exhaust air through the heat exchanger to improve the freshness and energy efficiency of the indoor air under the condition that the indoor air condition is maintained. it means. In this type of heat exchanger, in order to view indoor air, indoor air discharged to the outside so that sudden cold air and heat does not flow from the outside to the outside, and outdoor air heat exchanged from the outdoor to the indoor side are first performed. Doing. Therefore, such a heat exchanger can be discharged through the volatile organic compounds generated in the room, and the indoor air can be more comfortably maintained by a method of sucking the filtered fresh air into the room.

In this general heat exchanger, the exhaust fan installed in the heat exchanger is operated when the air-conditioned indoor air is discharged to the outside, and the air contaminated indoors and outdoors while passing through the heat exchanger element by the positive pressure is external. When the air supply fan installed in the total heat exchanger is operated on the contrary, the external air is sucked into the indoor side while passing through the total heat exchanger element from the outside with the generated positive pressure. In addition, when the air supply 휀 and the exhaust 동시에 are operated at the same time, the positive pressure in the indoor and the outdoor constant pressure are maintained at the same time while simultaneously passing through the heat transfer element in the heat exchanger, the heat exchange is made naturally. The electrothermal heat exchanger having such a working flow not only supplies fresh outside air but also heats the latent heat (humidity) together with the sensible heat (temperature) in an air-to-air heat exchange device used when exhausting contaminated air in the room. The element of the total heat exchanger for the heat transfer is necessary, for this purpose, the paper mainly composed of fibers such as natural pulp is mostly used.

In particular, the heat transfer element used as a material for the element of the heat exchanger is used as a partition member between the intake and exhaust passages of a heat exchanger such as an air conditioner, so that the heat transfer is required.

The electrothermal heat exchanger that has these characteristics discharges indoor air in the process of circulation of internal and external air for ventilation of air in air-conditioning and heating facilities of multi-use buildings or houses such as large buildings, schools, airports, hospitals and hotels. In order to save energy by recovering waste heat when supplying outside air to the room, it is widely used.

In this way, the heating element installed inside the heat exchanger to minimize the heat loss that can occur during the ventilation process of the indoor and outdoor air, and to minimize the heat loss by simply increasing the recovery rate of waste heat during heat exchange. Most of these are configured for the purpose, these electrothermal exchange elements are not sterilized and deodorized to the outside polluted air supplied to the room, as well as using a sheet of paper made of paper as described above Heat exchange efficiency also has a problem that is lowered.

In particular, the heating element is made of paper material and also flame-retardant to prevent the risk of ignition is impregnated with a known flame retardant, such as guanidine-based in the base paper in this case can be excellent flame retardant, but There is a drawback that the carbon dioxide in the exhaust gas is transferred to fresh air due to its low level.

In addition, a conventional electrothermal heat exchanger is formed of a box-shaped enclosure using a material such as metal, the through-hole for conveying air flow of the enclosure is formed with a connector that is combined with other duct pipe to form an exhaust line. Since the connector also uses a metallic material, the enclosure is corroded by vaporization and liquefaction generated during heat exchange, which often acts as a factor of contaminating indoor air.

In addition, the conventional heat exchanger made of a metal material is taken to be assembled by bending a thin iron plate, there is a possibility of lifting or spacing due to fine assembly tolerances, there is a noise or vibration phenomenon due to air flow transfer This causes a problem, such as the need for a separate heat insulating material due to the nature of the metal plate to form the enclosure has a problem of low heat exchange efficiency.

In addition, the conventional heat exchanger is generally manufactured so that the flow line of the supply and exhaust air flows only in one direction, and thus, the direction of the flow path is optional in accordance with various flow direction designs at the construction site, and thus the work cannot be installed fluidly. Problems have been pointed out such as poor performance and usability.

An object of the present invention is to provide a heat transfer element for a heat exchanger that is coated with a liquid copper in the form of a thin film on the heat transfer element used in the heat exchanger, ensuring flame retardancy and increasing heat exchange efficiency, as well as improved air permeability. .

In addition, the present invention, it is possible to partition the total heat exchanger housing made of foamed polypropylene resin (EPP) material by partition panel and partition wall according to the supply and exhaust flow path zone to be assembled in a block form, compared to the conventional metal sheet forming operation, assembling and handling performance Productivity is remarkably improved, and especially in the case of post-management due to change of supply and exhaust line or change of diameter of pipe connection, it is easy to partially detach detachment of partition panel to the corresponding supply and exhaust flow zone so that maintenance and variable installation are greatly improved. Its purpose is.

In addition, the present invention has another object to increase the work efficiency in the field by blocking the condition of the installation site of the total heat exchanger and the capacity variability of the total heat exchanger according to the air conditioning capacity change.

The present invention for achieving the above object, the paper processing step (S10), the copper film coating step (S20) to have a copper film peeling layer by coating a liquid copper on both sides of the paper and the copper film applying step Drying step (S30) for drying the rough paper, the forming step (S40) for forming the rough paper through the drying step (S30) and the base paper formed in the wave shape through the forming step (S40) alternately The present invention provides a heat transfer device comprising a stacking step (S50) of stacking and providing a partition member between the base paper and the base paper, and laminating and bonding, and molding and injecting a heat exchanger formed by using the heat transfer device into a resin of EPP material. The task can be achieved.

According to the present invention, the liquid copper film is applied to the surface layer of the heat-transfer element using a paper material in the form of a peeling, as in the past, the effect of obtaining a heat-transfer element excellent in flame retardancy and heat exchangeability, and the upper and lower cases. The main body and components of the total heat exchanger divided into are injection-molded with a resin made of ABS or EPP (Expanded Poly Propylene) to obtain a total heat exchanger. Corrosion can be prevented, and excellent heat insulation can be expected to maximize heat exchange efficiency.

The present invention also allows the partition panel and the partition body to be partitioned and assembled in a block type according to the supply / exhaust zone of the foamed polypropylene resin (EPP) material. Performance and productivity are remarkably improved, especially in case of post-management due to change of supply / exhaust line or change of diameter of pipe connection, it is easy to detach and detach partly partition of partition panel for the corresponding supply / exhaust zone. It works.

In addition, the present invention, the 4-way cross-flow path formed in the main body can be installed in a selective and fluid, depending on the directionality, as well as the cover is formed in the upper and lower cases, respectively, to ensure the fluidity in the direction of the supply and exhaust flow path, It is possible to change the installation position of the lower part, so that it is easy to customize the site, and the workability and usability are convenient.

In addition, the present invention, by mounting the mounting block on one side and the other side of the air supply and exhaust fan, which is installed inside the main body to prevent the shock and vibration generated during the driving of the air supply and exhaust fan, the arrangement of various wiring and wires Forming the wire storage groove to facilitate there is an effect that the work convenience according to the installation and maintenance is improved.

In addition, the present invention has the effect of excellent handling of the operator by molding the anti-slip dots on the outer peripheral surface of the main body in consideration of the EPP injection molded article having a low friction coefficient.

1 is a process flow diagram for obtaining a heating element according to the present invention

Figure 2 is a schematic view showing the coating treatment to form a copper film peeling layer using a spray gun of liquid copper on the surface of the base paper in the present invention

Figure 3 is a schematic view showing the coating treatment to form a copper film peeling layer using a liquid copper roller on the surface of the base paper in the present invention

4 is a schematic cross-sectional view showing a state in which a copper film peeling layer is formed by coating liquid copper on both surfaces of a base paper according to FIGS.

FIG. 5 is a view illustrating a state in which the base paper according to FIG. 4 is formed to form a waveform.

FIG. 6 is a cross-sectional view illustrating a state in which a partition member is bonded and formed between the paper and the paper while alternately stacking the sheets formed in the waveform shown in FIG. 5.

FIG. 7 is a perspective view illustrating the heat generating element of FIG. 6. FIG.

8 is an overall perspective view of a heat exchanger to which the heat transfer element of the present invention is applied;

FIG. 9 is an exploded perspective view illustrating separation of the total heat exchanger of FIG. 8. FIG.

10 is a view showing a state in which the blocking plate is separated in the total heat exchanger of the present invention.

FIG. 11 is a view showing another example in which the intake induction pipe, the exhaust induction pipe, the flange portion, etc. are integrally formed with the main body of the heat exchanger in the heat exchanger according to the present invention.

Figure 12 is a schematic diagram showing the flow of air in and out through the heat transfer element equipped with a heat exchanger of the present invention

13 to 14 is a perspective view showing the upper and lower cases of the total heat exchanger

15 is an enlarged view of an upper portion of an EPP total heat exchanger according to the present invention;

Figure 16 is an exemplary view showing a direct fitting coupling state by the flange, when the connector of the EPP material is coupled to the fastening hole of the body in the present invention;

17 is a schematic plan view of an EPP total heat exchanger case having a top cover plate and a sliding joint joint flange as another embodiment according to the present invention;

18 is an exploded perspective view of FIG. 17;

19 is an exemplary view illustrating a state in which an auxiliary joint flange and a cover are coupled as one embodiment of the present invention;

20 is a schematic perspective view of the lid of FIG. 19.

FIG. 21 is a schematic cross-sectional view illustrating another example of a state in which a heat exchanger is blocked using a straight partition panel so that the heat exchanger can be installed in a long direction.

22 is an exploded perspective view illustrating separation of the total heat exchanger according to the embodiment of FIG. 21.

FIG. 23 illustrates a total heat exchanger according to another embodiment of the present invention, wherein a first enclosure having a “U” shape is used, and a partition panel that is slidably open and coupled to both sides of the first enclosure is opened. Drawing showing an example by the configuration to be assembled by

FIG. 24 is an exemplary view in which the partition panel of FIG. 21 may be used upside down. FIG.

FIG. 25 is a perspective view illustrating another example of the present invention, illustrating an example in which a connector is perforated to be coupled to each surface including an upper surface of the total heat exchanger.

The present invention is applied to a heat exchanger using a method for manufacturing a heat transfer device and a heat transfer device manufactured therefrom, and provides a form to be formed by injection molding the applied heat exchanger made of a material of EPP resin.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention, the configuration will be described in the order of the method of manufacturing a heating element, and a heat exchanger to which the same is applied.

<Method for manufacturing a heating element applied to a heat exchanger>

First, the present invention, as described above, the base paper processing step (S10) to obtain a base paper, and the copper film to obtain a peeled copper film by applying a liquid copper to the surface of the base paper obtained by the base paper processing step (S10) It consists of a coating step (S20), a drying step (S30) and a forming step (S40) and a lamination step (S50) for drying the paper roughened by the copper film applying step (S20).

Paper processing step; S10

The base paper can apply the base paper normally applied to an electrothermal exchanger.

On the other hand, the base paper is 60 parts by mass of conifer bleached kraft pulp (NBKP) and 40 parts by mass of hardwood bleached kraft pulp (LBKP) in water and dispersed by water, and refiner (refiner) The altitude at the shopper prunes was set to 50 ° SR. To 100 parts by mass of solids of the wood pulp slurry thus obtained, 0.2 parts by mass of a polyamide epichlorohydrin-based wet strength enhancer was added as a solid, and 42 g of basis weight was obtained using a long paper machine. A base paper of / m ² can be produced.

Alternatively, 70 parts by mass of conifer bleached kraft pulp (NBKP) and 30 parts by mass of broad-leaved bleached kraft pulp (LBKP) were dispersed in water, and the refiner was used so that the high degree of Altitude at the shopper prunes was 60 ° SR. . To 100 mass parts of solid content of the wood pulp slurry obtained in this way, 0.2 mass part of polyamide epichlorohydrin type wet paper strength enhancing agents were added as solid content, and the base paper of 70 g / m <^2> of basis weights was manufactured using a long light paper machine. It was.

In order to impregnate using such a base paper, 50 parts by mass of guanidine sulfamic acid as a flame retardant and water are mixed as a flame retardant to prepare an impregnation solution, and the impregnation solution is impregnated into the base paper using a size press coater. After the treatment, the solid content after drying can be adjusted to ² g / m ² of lithium chloride and 5 g / m ² of guanidine sulfamate, and a base paper impregnated with a flame retardant having a basis weight of 49 g / m ² can be produced.

In addition, as an impregnation treatment using such a base paper, the impregnation liquid is prepared by mixing 70 parts by mass of guanidine sulfamic acid as a flame retardant and water as a flame retardant, and the impregnation liquid is applied to a base paper using a size press coater. Impregnated and dried to obtain 3 g / m ^{2 of} lithium chloride and 7 g / m ² of guanidine sulfamic acid as a solid content, and a base paper impregnated with a flame retardant having a basis weight of 80 g / m ² may be obtained.

In particular, the base paper is obtained by impregnating a flame retardant, but in the present invention, the flame retardant may not be treated. In addition to the processing of the base paper, the base paper obtained by other known methods may be utilized. It is preferable that such a base material adopts a base paper suitable for sensible heat exchange.

The base paper 1 obtained as described above is molded to have a vent 2 as shown in FIG. 5, and the process of molding to have the vent 2 is performed after the copper film coating step S20 to be described later. It would be desirable to mold.

Of course, before passing through the copper film coating step (S20), the aeration (2) may be formed, but in this case, in the copper film coating step (S20), the copper layer is formed on the surface layer of the base paper 1 by using liquid copper. In this case, it may be limited to using a spray gun or the like, and thus, operational efficiency may be lowered. Preferably, the air passage 2 may be formed after the copper film applying step (S20).

In the present invention, the base paper 1 obtained in the paper processing step S10 should be understood to mean a base paper 1 having a paper-like plane.

Copper film coating step; S20

This step means that the base paper 1 obtained by the above paper processing step (S10) is a process of applying the liquid copper to the surface layer in the form of a peel.

Using copper of the liquid phase, the copper film peeling layer 3 having the peeling form is formed on the surface of the paper 1, that is, both surfaces.

In order to form such a copper film peeling layer 3, the surface layer of the base paper 1 is filled with a spray gun or the like using a liquid copper, or is applied by placing it in a receiving tank containing liquid copper or applying the same. Alternatively, the liquid copper may be supplied to the roller, and the liquid copper may be coated by the contact between the roller and the base surface passing through the roller.

Drying step; S30 / forming step; S40 / stacking step; S50

Liquid copper is applied to the surface layer of the base paper 1 as described above, and the base paper 1 is naturally dried at room temperature after having the copper film peeling layer 3 in the form of a peel.

Using the paper (1) through the drying step (S30) as described above, the finished paper (1) through the molding step (S40) undergoes a process of forming to form a vent (2) as shown in Figure 5 You can get it.

As described above, the liquid copper is coated to make the copper film peeling layer 3 have the corrugated paper 1 with a wave shape, and after the forming step S40 of forming the air passage 2, the paper made of one unit ) Alternately stacked to form a heating element (6) of the completed form, as described above, when the base paper (1) is alternately stacked, provided with a partition member (5) between the base paper (1) and the base paper (1) The aeration path 2 between the base paper 1 and the base paper 1 was partitioned.

Using the partition member 5, as shown in Figs. 6 to 7, the partition between the base paper 1 and the base paper 1 can be partitioned, but the adhesive is used on the acid 4 in the corrugation of the base paper 1. It should be made to bond with the partition member (5).

In this way, when the base paper 1 and the base paper 1 are alternately stacked, and the lamination bonding is completed by the partition member 5 therebetween to form one completed element, a separate case (not shown in the drawing), etc. After the casing process using, it can be installed and used in the total heat exchanger.

<Heat exchanger using the heat transfer element of the present invention>

-First embodiment of the configuration of the total heat exchanger-

Therefore, it can be applied to the total heat exchanger 100 for explaining the first embodiment in the present invention as shown in Figure 8 by using the heat transfer element obtained by manufacturing as described above.

The total heat exchanger 100 adopted in the present invention is to be separated into the upper and lower sides by using the material of EPP, so that it can be manufactured in one completed foam.

The total heat exchanger 100 is configured to be fixed to the building, so that the intake passage 110 and the exhaust passage 120 cross each other as shown in FIG. 11.

EPP resin refers to foamed polypropylene into spherical (circular) particles without using a chemical blowing agent and without causing a chemical change therein by physical foaming.

The EPP resin is 100% recyclable, environmentally friendly, flame retardant and self-extinguishing, and maintains high mechanical strength while being light in weight, resulting in reduced installation costs, and high insulation and insulation and sound absorption. Due to the condensation to prevent the occurrence of condensation, as well as the sound insulation effect is significantly improved.

The installation direction may vary depending on the site condition of the total heat exchanger 100. The present invention provides a selective heat exchanger 100 and an exhaust path 120 in order to enable the selective installation operation according to the installation site condition. Intake flow path 110 and the exhaust flow path 120 are installed on each of the four sides, but the intake flow path 110 and the exhaust flow path 120 of the unused surface to be blocked by the blocking plate 130 Configure.

In order to block the intake passage 110 and the exhaust passage 120 which are not used by the blocking plate 130, as shown in FIG. 10, each intake induction hole 111 and the exhaust induction hole 121 of the total heat exchanger 100 are shown. Coupling guide grooves 140 are formed on the inner circumferential surface of the coupling guide, and the coupling protrusion 131 is inserted into the coupling guide groove 140 as the outer circumferential surface of the blocking plate 130 and the blocking plate 130 is coupled. It is preferable to form.

In addition, the intake induction pipe 111 and the exhaust induction pipe 121 is coupled to the outside duct (not shown in the drawing) is provided with an intake induction pipe 112 and the exhaust induction pipe 122, the intake The flange portion 150 is inserted into the coupling guide groove 140 provided in the induction pipe 112 and the exhaust induction pipe 122 at the inner circumferential surface of the intake induction hole 111 and the exhaust induction hole 121 of the total heat exchanger 100. To fix it.

It is preferable that the flange portion 150 uses a circular shape as the center penetrates. The intake air inlet 110 and the exhaust induction pipe 121 of the intake flow path 110 and the exhaust flow path 120 are used as described above. After inserting the flange portion 150 into the coupling guide groove 140 formed as the inner circumferential surface, by connecting the intake induction pipe 112 and the exhaust induction pipe 122 to the flange, it is to be connected to the external duct.

In addition, the intake induction pipe 111 and the exhaust induction hole 121 of the intake passage 110 and the exhaust passage 120 which are not used are blocked by the blocking plate 130 in the coupling guide groove 140 of the inner circumferential surface thereof. do.

On the other hand, the upper side of the heat exchanger 100 is configured to open and close the cover 160 to enable replacement, replacement or cleaning of the heat transfer element 6 according to the present invention.

In addition, in the present invention, in the above-described embodiment, the flange portion 150 having a center drilled through the coupling guide groove 140 formed on the inner circumferential surface of the intake induction hole 111 and the exhaust induction hole 121 used in the total heat exchanger 100. Is coupled to the inlet induction pipe 112 and the exhaust induction pipe 122 for coupling with the duct to the flange portion 150 is configured to be coupled to the flange portion 150 and the intake induction pipe 112 and exhaust Induction pipes 122 were allowed to be separated from each other.

In the above-described embodiment, since the flange portion 150 may be formed in a rectangular or circular shape as shown in the drawing, the position thereof is changed when the fluid passage outside or outside the air is discharged or introduced, It was intended to enable interoperability.

However, it is also expected that such compatibility is not necessary. In this case, the flanges 150 are integrally formed at end portions of the intake induction pipe 112 and the exhaust induction pipe 122 for coupling with the duct, Each intake induction pipe formed integrally with the flange portion 150 by being coupled to the flange portion 150 in the coupling guide groove 140 formed on the inner circumferential surface of the induction hole 111 and the exhaust induction hole 121 ( 112 and the exhaust induction pipe 122 may be configured to be coupled to the total heat exchanger side 100 or to be separated by one operation.

By this implementation it will be possible to increase the work efficiency of installing the pre-heat exchanger 100 in the field.

When the heat exchanger 100 installed as described above is installed in the building as described above and the air in the room is discharged through the exhaust passage 120 by the driving of the blower 170 provided inside the heat exchanger 100. When the outdoor air is passed through the heating element 6 and is discharged to the outside, and the outside air is introduced into the room while passing through the heating element 6 through the suction flow path 110, the heating element 6 is discharged to the outside. The latent heat and sensible heat are exchanged due to the temperature difference between the air and the air introduced into the room, and the air introduced into the room is raised.

In this process, the heat transfer element 6 is to have a copper foil layer 3, it is possible to excellent heat exchange efficiency.

On the other hand, although not shown in the embodiment of the present invention is provided with an environmental filter inside the heat exchanger 100, it is a matter of course that it is possible to filter the impurities contained in the air flowing into the room.

Second Embodiment of Electrothermal Exchanger Configuration

In addition, this invention can implement the total heat exchanger which this invention provides also by FIG. 8, FIG. 9, and FIG. 8 and 9 may have a configuration in which the first embodiment and the second embodiment overlap.

In this embodiment, as in the first embodiment, the components constituting the heat exchanger will be described by being divided into upper and lower cases.

That is, the upper and lower cases 101 and 102 are divided into two to form a heat exchanger 100 assembled by the fastening plate 103, and the square block type heat transfer element 6 is coupled to the inside of the heat exchanger 100. When the heat transfer element 6 is coupled in the heat exchanger 100, the cross-flow passages Z1 to Z4 are formed by the partition walls 104 corresponding to the corners of the heat transfer element 6, and the flow zones Z1 to Z4. A plurality of blow fans 170 are installed in one of the one side and the other side of the flow zone so as to face each other, and the intake and exhaust air induction hole penetrates the flow zones (Z1 to Z4) on the outer circumferential surface of the positive, double, left and right directions of the heat exchanger 100 ( Removable intake and exhaust induction pipes (112,122) are formed to form the 111, 121 is formed so that the removable intake and exhaust induction pipes (112, 122) and the blocking plate 130 is selectively coupled, the upper and lower cases (101, 102) of the total heat exchanger (100) On the surface, the cover 160 for opening and closing the receiving groove 31 by the hinge 33 has a symmetrical shape with each other. The heat exchanger 100 and the partition wall 104, the intake and exhaust air induction hole 111 and 121, the blocking plate 130 and the cover 160, and the receiving groove 31 having the two-divided upper and lower cases 101 and 102 are formed. All are configured to be injection molded with EPP (Expanded Polypropylene).

At this time, the removable intake and exhaust induction pipe (112,122) is any one of the duct connection flange pipe, backwind prevention back draft damper, the intake and exhaust air induction pipe (112, 122) in the coupling guide groove 140 formed in the intake and exhaust induction hole (111, 121) of the total heat exchanger. The coupling side coupling protrusion (a) of the corresponding to be assembled, but the intake and exhaust air induction pipes (112, 122) are formed to be injection molded with resin of ABS or EPP material, when combined with the total heat exchanger (100) the overall appearance of the total heat exchanger is a synthetic resin It is desirable to be made of ash.

On the other hand, a coupling protrusion 131 is also formed on the outer circumferential surface of the blocking plate 130 to be coupled to the coupling guide groove 140 formed in the intake and exhaust gas induction pipes 111 and 121.

In addition, the cross-flow path (Z1 ~ Z4) is formed with a mounting block 7 integrally injection-molded from a resin of EPP material to support and fix the shock and vibration of the blower fan 170 for the exhaust and exhaust, The partition wall 104 has a wire storage groove 105 is formed so that the wires of the air supply fan 170 or the wires of the PCB panel can be accommodated and arranged on either side of the surface, the PCB panel is a heat exchanger (100) It is preferable to be formed in the storage box 190 is formed on any one side inside.

Thus, the mounting groove 161 of the heat exchanger is formed so that the stepped 161-2 is formed around the opening hole 161-1 so that the lid 160 is accommodated while corresponding to the stepped 161-2, The cover 160 is formed in a rhombus shape based on the hinge 33 to rotate and open and close, and prevents leakage on one side of the step 161-2 corresponding to the lower tip of the extension part 162 side of the cover 160. The dam 163 is preferably integrally projected to be injection molded.

In addition, the heat exchanger 100 has a non-slip dot 107 is formed so as to be arranged at equal intervals throughout the hexahedron of the heat exchanger 100 while forming a plurality of protrusions 106 on the outer peripheral surface of the EPP material It would be desirable to prevent slippage inherent in the injection molded product.

The above configuration will be described in more detail.

8, 9, and 13 to 16, the heat exchanger 100 incorporating the heat transfer element 6 and the air supply fan 170, and the intake and exhaust air induction of the heat exchanger 100 ( It consists of a plurality of intake and exhaust induction pipes 112 and 122 and the blocking plate 130 coupled to the 111,121, and the cover 160 is coupled to the upper and lower cases (101, 102) of the heat exchanger 100, such a heat exchanger (100) ) Is injection molded from EPP (Expanded Polypropylene).

The upper and lower cases 101 and 102 are made to form the entire heat exchanger 100 by using an EPP resin, and the heat exchanger 100 is divided into two parts based on a horizontal (horizontal) center. Are formed to form a symmetrical shape, when the abutment is in contact with each other, the cross-flow path zone (Z1 ~ Z4) and a plurality of intake and exhaust induction holes (111, 121) are formed in four directions, positive, double, left, right.

At this time, the upper and lower cases 101 and 102 are formed with a plurality of fastening plates 103 at the edges of the outer circumferential surface thereof, such that fasteners such as bolts and nuts are assembled to the fastening plates 103, and the upper and lower case 101 and 102 are integrated. To be assembled into the body.

That is, the total heat exchanger 100 of the present invention is not produced by sheet metal by bending or welding of iron plate material, but by production of injection molded product of resin material, so that the productivity is greatly improved, and it is particularly eco-friendly, in particular, assembly and handling properties. This has the advantage of dramatically improving.

This assembly configuration and its effects can be similarly applied to each embodiment of the aforementioned heat exchanger.

The heat exchanger 100 is coupled to the inside of the heat exchanger 100 in the same manner as in the above-described embodiment, and corresponding to each corner side of the heat transfer element 6 by coupling in the heat exchanger 100 of the heat transfer element 6. Intersecting flow paths Z1 to Z4 are formed by the partition wall 104.

The cross flow paths (Z1 to Z4) are paths for supplying and exhausting in an X-shape by the heat transfer element 6 drawn in a rhombus shape in a rectangular main body. Due to the air flow through the heat exchanger 100, the intake and exhaust air induction hole (111, 121) is formed on the positive, double, left, right surface of the body.

That is, inlet, exhaust, left and right four-direction outer circumferential surfaces of the total heat exchanger 100 are formed with intake and exhaust air induction pipes 111 and 121 penetrating through the cross-flow paths Z1 to Z4. ) Is formed to be selectively combined.

In this case, a plurality of air supply and exhaust fans 170 are provided on one side and the other side of the cross-flow paths Z1 to Z4 so as to face each other.

In addition, the cover 160 is formed in a symmetrical shape so as to open and close the mounting groove 161 by the hinge 33 on each of the upper and lower case (101,102) of the main body of the heat exchanger (100).

The removable intake and exhaust pipes 112 and 122 are any one of a duct connection flange pipe and a back draft damper to prevent backwind, and the intake and exhaust pipes are formed in the coupling guide groove 140 formed in the intake and exhaust pipes 111 and 121 of the main heat exchanger 100. The coupling side coupling projections (a) of the 112 and 122 are configured to correspond to each other.

That is, the intake and exhaust induction pipes 112 and 122 are not coupled to the main body by the heat exchanger 100 by fastening screws or bolts, but the male and female fittings with respect to the main heat exchanger 100 main body intake and exhaust induction pipes 111 and 121 of the sliding type. The simple fastening ensures a robust assembly, as well as the reliability of the airtightness, and has a feature that makes it easy to change the customized flow path according to the flow direction in the field.

In addition, the coupling protrusion (a) structure of the intake and exhaust air induction pipes (112, 122) forms a coupling protrusion 131 that is applied to the blocking plate 130 in the same way, it is possible to exchange installation with the blocking plate 130 by sliding coupling. Therefore, it is possible to install a variable according to the flow path change.

As described above, the intake and exhaust air induction pipes 112 and 122 are formed to be injection-molded with resin of ABS or EPP material, so that the combination with the main heat exchanger 100 and the change of position according to the flow path are convenient.

On the other hand, the cross-flow path zone (Z1 ~ Z4) is formed with a mounting block 7 integrally injection-molded from the resin of the EPP material to support and fix while preventing shock absorption and vibration of the blower blower fan 170.

The mount block 7 is a kind of anti-vibration or vibration-absorbing support pillar which is formed at the bottom of the intersecting flow zones Z1 to Z4 of the upper and lower cases 101 and 102, respectively, so that the air supply and exhaust blower 170 located in the flow passage zone is vertically positioned. It was formed to support in both directions.

At this time, the partition 104 has a wire storage groove 105 is formed so that the wires of the air supply fan 170 or the wires of the PCB panel can be accommodated and arranged on either side of the surface, the PCB panel is a heat exchanger ( 100) It is preferable that the holder 190 is formed on any one side of the main body so that it can be embedded therein.

In addition, the PCB panel holder 190 and the wire storage groove 105 may be injection molded integrally from the resin of the EPP material, for example, formed on the one side of the partition 104 in the form of grooves of the PCB panel and the wire Make it easy to store and organize.

The stepped 161-2 is formed around the opening hole 161-1 in the mounting groove 161 of the main body of the heat exchanger 100 so that the lid 160 is accommodated while corresponding to the stepped 161-2. do.

The cover 160 is formed in a rhombus shape based on the hinge 33 and corresponds to the cross-sectional shape of the heat transfer element 6, and extends 162 of the cover 160 when the cover 160 is opened and closed by the mounting groove 161. Preferably, the leakage preventing dam 163 is integrally protruded to one side of the step 161-2 corresponding to the lower side of the side to be injection molded.

That is, the cover 160 is closed so that the outer circumferential surface is in contact with the step (161-2), and the appearance of the cover 160 to correspond to the shape of the heating element (6) when closed, such as a separate fastening screw The mounting groove 161 into which the heating element 6 is inserted is sealed by the sphere.

In this case, the leakage preventing dam 163 is further formed on the stepped portion 161-2 so that the leakage does not occur when the cover 160 is in contact with the cover 160, so that the air supply and exhaust air flow due to heat exchange is not leaked.

In addition, the main heat exchanger (100) main body has a non-slip dot (500) is formed so as to be arranged at equal intervals throughout the hexahedron of the main body of the heat exchanger 100, while forming a plurality of protrusions 106 on the outer peripheral surface It would be desirable to prevent slippage inherent in injection molded products made of EPP material.

Third embodiment of electrothermal exchanger configuration

According to the third embodiment of the present invention, the pre-heat exchanger housing made of expanded polypropylene resin (EPP) is partitioned and partitioned by the partition panel and the partition body according to the supply / exhaust zone, so as to be assembled in a block-like manner. The present invention proposes a total heat exchanger that is easy to block type detachable of partition panel to enable maintenance and variable installation.

To this end, first, it is possible to present a total heat exchanger that can be assembled by partition paneling in the form as shown in FIGS. 17 to 25.

For example, the total heat exchanger is to be combined with four bent partition panels facing each other to form a single enclosure, each of which is fitted with fitting grooves, and these fitting grooves are combined with the T-shaped fitting protrusions of the partition body It will form an enclosure of.

In more detail, the heat exchanger has a bent partition panel (10) having a joint flange (12) coupled to the intake and exhaust induction hole (111,121) and the intake and exhaust induction hole (111,121) to form any of the internal air supply and exhaust space of the heat exchanger. It is configured to partition one flow zone Z1 to Z4.

This flow zone is the same as in the first embodiment described above.

The joint flange 12 is preferably open in the intake and exhaust air induction openings 111 and 121 so that the upper direction of the joint flange 12 is opened at the partition panel 10 in which the joint flange 12 may be located, as shown in FIGS. 17 to 19. It can be configured to be capable of sliding coupling from the upward direction to the downward direction.

Therefore, the intake and exhaust air induction hole (111, 121) referred to in the present invention means a structure of the shape that is generally opened, as well as the shape of the opening in the upward direction.

At this time, the partition panel 10 has fitting grooves 13 formed at both ends thereof so as to correspond to the other partition panels facing each other, so that the T-shaped fitting protrusions 21 of the partition wall 20 are assembled into a box-shaped enclosure. Is formed.

Accordingly, the partition wall 20 is formed so that the Y-shaped support 22 is formed on the other side facing the fitting protrusion 21 so that the heating element 6 is inserted therein, and the partition panel assembled with the partition wall 20 ( When the unit 10 forms an integrated unit, the unit cover plates 30 are assembled to each other.

In this case, the partition panel 10, the partition wall 20, the unit cover plate 30 is preferably formed of a foamed polypropylene resin (EPP) material.

In addition, the intake and exhaust air induction hole (111, 121) of the partition panel is formed in the inner circumferential surface and the assembly groove 14 is formed on the inner circumferential surface while the upper end is opened to form a streamlined circular arc shape, the joint flange 12 is the outer circumferential surface corresponding to the shape of the through hole It is preferable that the assembly jaw 15 is formed in the pull-out and assembled in the vertical sliding manner with respect to the through hole.

That is, the electrothermal heat exchanger of the present invention is not the production of sheet metal by bending or welding of iron plate material, but by the injection molding of the resin material, the productivity is greatly improved, environmentally friendly, in particular, the assembly and handling properties are significantly improved There is this.

In addition, when the unit cover plate 30 is not adopted, a receiving element accommodating groove 31 is formed, and the accommodating groove 31 is a rhombus shape or a square shape corresponding to the outer circumferential shape of the heating element. One side of the accommodating groove 31 is preferably provided with a cover 160 that can open and close the accommodating groove while being rotated up and down by the hinge 33.

In addition, the partition panel, the lid and the joint flange is formed on the outer peripheral surface of the non-slip dots forming a plurality of projections in a single circular group, so as to be arranged at equal intervals on the entire outer peripheral surface, the handling slippage unique to the injection molded product of EPP material It is desirable to prevent it.

On the other hand, it is preferable to divide the entire heat exchanger into four equal parts as described above, and to divide the upper and lower plates into four equal parts to form the unit cover plate 30 as described above, and then to allow mutual assembly. Do.

In addition, unlike the unit cover plate 30, as shown in FIG. 25, the unit cover plate 30 is perforated inlet and exhaust air induction pipes 111 and 121 are perforated joint flanges 112 and 122 are coupled to the sliding assembly (12) can be formed.

On the other hand, alternatively, it is also possible to exemplify by FIG. 22, by using a block to be assembled, to provide a configuration to facilitate the assembly and installation of the total heat exchanger, unlike the installation of the square heat exchanger described above heat exchange in the air conditioning structure In order to increase the flow volume of the fluid, it is possible to secure a large number of flow zones by expanding the air supply and exhaust flow paths and escaping the flow zones from the four zones, without using a modified assembly or manufacturing a new type of heat exchanger. It provides an embodiment for possible.

To this end, as shown in FIG. 22, a bent partition panel 10 having a joint flange 12 coupled to the intake and exhaust induction pipes 111 and 121 and the intake and exhaust air induction pipes 111 and 121 is formed, thereby selecting any of the internal air supply and exhaust spaces of the heat exchanger. After partitioning one of the flow zones (Z1 ~ Z4), the fitting grooves 13 are formed at both ends of the partition panel 10 to correspond to the partition panel (10 ') of the "U" shape in cross-section, the partition body A T-shaped fitting protrusion 21 of 20 is formed to be assembled into a box-shaped enclosure, and a Y-shaped support 22 is formed on the other side of the partition body 20 opposite to the fitting protrusion 21. 6) is formed so as to be embedded, and when the partition panel 10 and the partition panel 10 assembled to reach the integral enclosure, the upper and lower cover 160 is coupled to each other to be assembled.

The cover 160 may be assembled or assembled by configuring the unit cover plate 30 in a divided form as described above.

In such a configuration, it is possible to flexibly adjust the size of the total heat exchanger in response to the installation work conditions and the air conditioning design at the installation work site according to the size of the flow rate of the exhaust and exhaust, and the installation assembly is possible.

That is, the side end portion of the heat exchanger is formed by using the bent partition panel 10 as described above, and then the partition panel 10 having a “U” shape in cross section for connecting the middle between the bent partition panels 10. By combining with each other using '), it was configured to be able to vary the overall length of the total heat exchanger.

Partition panel 10 'of the "U" shape in the cross-section is configured to be interconnected, it can be configured to enable a variable length installation of the total length of the heat exchanger.

In addition, in the case of the variable configuration assembly, the space for accommodating the heating element provided in the heat exchanger is expanded to accommodate the heating element, the shape of the heating element may be able to be somewhat modified. .

On the other hand, as described above, it is preferable to divide the upper and lower cover 160 so as to be separated and assembled to each other, the cover 160 is also divided into the unit cover plate 30 is divided into perforated air inlet and exhaust air inlet (111, 121) is intake Induction pipes (112, 122) is coupled to form a joint flange (12) that can be assembled by sliding, it is preferable to be configured to be assembled.

In addition to the above-described configuration, in implementing the pre-heat exchanger of the block body that can be assembled, it may be possible to implement in the form as shown in Figs.

That is, in the configuration constituting the main body, that is, the enclosure of the total heat exchanger, as shown in FIG. 23, the first enclosure 50 is formed in a cross-sectional view, and the side of the first enclosure 50 is opened. While maintaining the state, the open side is configured to be assembled by using the straight partition panel 10 "respectively.

In this case, the intake and exhaust air induction pipes 112 and 122 in the straight partition panel 10 '' or the intake and exhaust air induction pipes 112 and 122 in the joint flange 12 are opened in the up direction at one side of the partition panel 10. Forming the induction hole (111,122) and the intake and exhaust induction pipe (111,122) is configured to enable the sliding coupling assembly joint joint 12 is coupled to the intake and exhaust induction pipe (112,122).

In addition, it is preferable that other through holes are not formed at the other side of the intake and exhaust induction holes 111 and 121, for example, by lifting and separating the joint flange 12 from the intake and exhaust induction holes 111 and 121, and then separating them. The joint flange 12 is slidably coupled as shown in FIG. 8 while the partition panel 10 "is rotated so that the positions of the intake and exhaust induction pipes 111 and 121 are displaced so as to enable an active response to the positions of the intake and exhaust pipes 112 and 122. FIG. Can be.

On the other hand, in the total heat exchanger applied by the above-described example, in the case of the cover 160, it is preferable to select any one of the one-piece configuration to be configured integrally or to be separated from each other so as to be assembled and combined with each other. Do.

In addition, the cover 160 may form a general cover form as shown in FIG. 23, but unlike the inlet and outlet induction pipes 111 and 121, as illustrated in FIG. 25, the intake and exhaust pipes 112 and 122 are coupled to each other to allow the joint flange to be assembled. Many (12) can be formed.

According to the embodiment of Fig. 25, the installation can be very easy when the pipe installation form such as the supply / exhaust is configured on the upper side of the total heat exchanger.

On the other hand, in the case of the cover 160, unlike the one-piece configuration, as can be implemented in the unit cover plate 30 to be assembled in a divided form as shown in Figure 25, of course, the intake and exhaust air induction pipes 112, 122 ) Or the joint flange 12 may be configured on each side and the upper surface side of the total heat exchanger, and in this case, it may be necessary to easily connect or connect the duct or the like where necessary. If there is no, it can be shielded using the blocking plate 130 or the like.

Therefore, according to the embodiment according to the present invention according to the installation position of the intake and exhaust induction pipes, the connection work with the duct to immediately meet the site conditions at the site to be installed without the need to newly configure or manufacture the total heat exchanger and Installation will be possible.

Each of the embodiments of the present invention is not limited to the specific preferred embodiments described above, and those skilled in the art without departing from the gist of the present invention claimed in the claims, Various modifications may be made, of course, and such changes are within the scope of the claims.

The present invention, by applying a thin film of liquid copper on both sides of the paper material using a heat-transfer element excellent in insulation and heat exchange properties of the heat-transfer element by using a resin of ABS or EPP (Expanded Poly Propylene-expanded polypropylene) material By injection molding to obtain a total heat exchanger, it suppresses the generation of noise and vibration, prevents the body from being corroded by the vaporization and liquefaction phenomena generated during heat exchange, and greatly improves the heat exchange efficiency by excellent thermal insulation, Partition panel and partition wall can be partitioned and assembled according to the supply / exhaust flow zone, so that the part of the partition panel for the supply / exit flow zone can be changed even after the change of the supply / exhaust line or the change in diameter of the pipe connection or the intake / exhaust guide pipe. Easily removable block type, maintenance and variable installation can be greatly improved.

Claims (20)

1. Paper processing step (S10) is adopted as a heating element,

   Copper film coating step (S20) and supplying a liquid copper to both sides of the base paper to have a copper film peeling layer by coating;

   Drying step (S30) for drying the paper through the copper film coating step,

   Forming step (S40) for molding the base paper after the drying step (S30) into a wave shape,

   Alternately stacking the base paper formed in a wave form through the forming step (S40), but having a partition member between the base paper and the base paper, the laminated step (S50) for laminating and joining a method for manufacturing a heat exchanger for a heat exchanger. .
2. The method of claim 1,

   In the copper film coating step (S20), the liquid copper is applied to both sides of the base paper by using any one of the spray gun or roller to obtain a copper film peeling layer.
3. A heat transfer element for a heat exchanger manufactured by any one of claims 1 to 2.
4. In the heat exchanger using a heat transfer element,

   The pre-heat exchanger is formed by EPP material and coupled to the top and bottom molding injection, the cover is configured to open and close the top surface of the pre-heat exchanger,

   When the heat exchanger is coupled to the heat exchanger, the cross-flow paths including the intake passages having intake guides on each of the four sides and the exhaust flow paths having the exhaust guides are intersected by partition walls corresponding to the corners of the heat transfer elements. In addition, the intake passage hole and the exhaust guide hole is provided with a coupling guide groove, the unused intake passage hole and the exhaust passage hole to be shielded by a blocking plate having a coupling protrusion on the outer peripheral surface,

   A coupling guide groove formed in the inner circumferential surface of the intake passage hole and the exhaust passage hole to be used is coupled to the flange portion having a central perforation, and the intake induction pipe and the exhaust induction pipe are coupled to the duct in the flange portion. Heat exchanger made of.
5. In the heat exchanger using a heat transfer element,

   The total heat exchanger is molded by injection molding with the upper and lower EPP resin, the cover is configured to open and close on the upper surface of the total heat exchanger,

   When the heat exchanger is coupled to the heat exchanger, a cross-sectional flow path is formed into an intake flow path having intake air induction and an exhaust flow path having exhaust induction on each side by a partition wall corresponding to each corner side of the heat transfer element. Coupling guide grooves are provided on the inner circumferential surface of the intake duct and exhaust duct, so that the unused intake duct and the exhaust duct are shielded by a blocking plate having a coupling protrusion on the outer circumference thereof

   The flange portion is integrally formed on one side of each of the intake induction pipe and the exhaust induction pipe to be combined with the duct, so that it can be coupled to the coupling guide groove formed on the inner circumferential surface of the intake induction pipe and the exhaust induction pipe used.

   Heat exchanger characterized in that the heat transfer element for the heat exchanger is provided in the center of the heat exchanger.
6. In the heat exchanger using a heat transfer element,

   The upper and lower cases are divided into two, and a heat exchanger is assembled, which is assembled by a fastening plate. A quadrangular block type heat exchanger is coupled to the inside of the heat exchanger, and when the heat transfer element is coupled to the heat exchanger, the heat exchanger corresponds to each corner side of the heat exchanger. A cross flow zone is formed by a partition wall, and a plurality of air supply and exhaust fans are installed on one side and the other side of the cross flow zone so as to face each other, and on the outer circumferential surfaces of the heat exchanger in four directions: positive, double, left and right. An intake and exhaust induction pipe is formed to penetrate the flow path zone so that the removable intake and induction pipe and the blocking plate are selectively coupled, and the cover for opening and closing the mounting groove by the hinge is symmetrical to each other on the upper and lower cases of the heat exchanger. It is formed, the heat exchanger having a two-part upper and lower casing, partition wall, intake and exhaust air induction, blocking plate and cover, cabinet Grooves are all EPP (Expanded Poly Propylene; polypropylene foam) can be expanded polypropylene such that the injection molding of a resin material of the terrain the total enthalpy heat exchanger.
7. The method of claim 6,

   The heat exchanger is a polypropylene resin type heat transfer foam, characterized in that the anti-slip dots formed on the outer circumferential surface to form a single circular group, the non-slip dot is arranged so as to be arranged at equal intervals throughout the heat exchanger hexahedron Exchanger.
8. The method according to claim 4 or 6,

   The intake induction pipe and the exhaust induction pipe may be any one of a duct connecting flange pipe and a back draft damper for preventing backwind, and a coupling side coupling protrusion between the intake induction pipe and the exhaust induction pipe corresponds to the coupling guide groove formed in the intake and exhaust induction pipe of the total heat exchanger. To be assembled, but the intake induction pipe and the exhaust induction pipe are formed to be injection-molded with a resin of ABS or EPP material so that the entire appearance is made of a synthetic resin material when combined with a heat exchanger. Exchanger.
9. The method according to any one of claims 4 to 6,

   A foamed polypropylene resin type heat exchanger including an injection molded mount block integrally formed from an resin of EPP material to prevent and absorb shock and vibration of an air supply / exhaust blower in the flow zone of the heat exchanger.
10. The method according to any one of claims 4 to 6,

    The partition wall is foamed polypropylene resin type heat exchanger comprising a wire storage groove is formed so that any one side of the air supply or blower wire for the exhaust fan or PCB panel can be accommodated.
11. The method of claim 10,

    The PCB panel is expanded polypropylene resin type heat exchanger comprising a storage box formed on any one side of the heat exchanger body to be embedded.
12. The method according to any one of claims 4 to 6,

    The cover forms a rhombus shape based on the hinge to rotate open and close, but when the opening and closing the anti-leakage dam is integrally protruded on one side of the upper and lower casing portions corresponding to the lower end of the extension side of the cover to be injection molded. Foamed polypropylene resin type heat exchanger.
13. In the heat exchanger using a heat transfer element,

    A bent partition panel having a through hole and a joint flange coupled to the through hole is formed to partition one of the flow zones of the internal air supply / exhaust space of the total heat exchanger, and the partition panel is formed with fitting grooves at both ends thereof to face each other. After the beams correspond to the partition panel on the other side, the T-shaped fitting protrusions of the partition body are formed to be assembled into a box-shaped enclosure, and the Y-shaped support is formed on the other side of the partition body opposite to the fitting protrusions of the partition body, and the heating element is formed therein. A foamed polypropylene resin type heat exchanger, characterized in that the upper and lower cover is coupled to each other when the partition panel assembled with the wall reaches an integral enclosure.
14. A bent partition panel having a through hole and a joint flange coupled to the through hole is formed so as to partition one of the flow zones of the internal air supply / exhaust space of the heat exchanger. After forming a partition panel of the "shaped", the T-shaped fitting protrusion of the bulkhead is formed to be assembled into a box-shaped enclosure, and the Y-shaped support is formed on the other side opposite to the fitting protrusion of the bulkhead to form a heating element. And, when the partition panel assembled with the partition wall reaches an integrated enclosure, the foamed polypropylene resin type heat exchanger, characterized in that the upper and lower covers are combined to be assembled.
15. The method according to claim 13 or 14,

    Each of the partition panel, the partition wall, and the cover is made of a foamed polypropylene resin (EPP) material, characterized in that the foamed polypropylene resin type heat exchanger.
16. The method according to claim 13 or 14,

    The total heat exchanger is formed by injection molding any one material of ABS or EPP material.
17. The method according to claim 13 or 14,

    The through-hole of the partition panel has an upper end opening to form a streamline shape having a lower arc shape, and a simmering groove is formed on the inner circumferential surface. The joint flange corresponds to the shape of the through-hole. Expanded polypropylene resin type heat exchanger characterized in that it is pulled out and assembled in a sliding manner.
18. The method according to claim 13 or 14,

    The cover is formed with a receiving groove for the heating element drawer on the surface, the receiving groove is a rhombus shape or square shape corresponding to the outer circumferential shape of the heating element, one side of the male male groove is rotated up and down by a hinge to open and close the receiving groove. Foam polypropylene resin type heat exchanger characterized in that the opening and closing door is provided.
19. The method according to claim 13 or 14,

    The cover is expanded polypropylene resin type heat exchanger comprising a divided cover to form a unit cover plate to be separated from each other and assembled.
20. The method of claim 19,

    In the case of the unit cover plate, the cover is divided, the through-hole is perforated for each unit piece to be divided, the intake and exhaust air induction pipe is coupled to form a joint flange that can be assembled by sliding, comprising a configuration to be assembled, foamed polypropylene resin type Heat exchanger.

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