Total heat exchanger and ventilation device

Abstract

The invention provides a total heat exchanger and a ventilation device which have a humidity control function and can reduce thermal resistance and effectively perform heat exchange. This total heat exchanger is provided with: a heat exchange element having a three-dimensional shape; a humidity control material provided in the heat exchange element; and a cylindrical heat storage unit provided so as to communicate one and the other of the blowing directions in which air is blown to the heat exchange element.

Description

Technical Field

[0001] The present disclosure relates to a total heat exchanger and a ventilation device. This application claims priority based on Japanese Patent Application No. 2022-186259, which was published in Japan on November 22, 2022, and incorporates its content herein by reference. Background Art

[0002] Various total heat exchangers have been disclosed in the past.

[0003] For example, Patent Document 1 discloses a rotor related to a desiccant rotor, which includes: a rotor main body portion (11) having a hollow interior; a partition plate (12) for dividing the interior of the rotor main body portion (11) into at least two parts; and at least two highly hygroscopic fibers (13) respectively filled in the spaces inside the rotor main body portion (11) divided by the partition plate (12). Prior Art Documents Patent Documents

[0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2005-052694 Summary of the Invention Technical Problems to be Solved by the Invention

[0005] However, the above-mentioned desiccant rotor aims to achieve weight reduction compared to conventional rotors. Since it is filled with highly hygroscopic fibers inside, the thermal resistance becomes extremely large, heat dissipation of the adsorption heat cannot be performed, the moisture absorption performance deteriorates, and it cannot be used in a total heat exchanger.

[0006] Therefore, in view of the above problems, the present invention provides a total heat exchanger and a ventilation device having a humidity control function and capable of reducing thermal resistance to effectively perform heat exchange. Technical Solutions for Solving the Technical Problems

[0007] In one aspect of the present disclosure, a total heat exchanger includes: a heat exchange element having a three-dimensional shape; a humidity control material provided on the heat exchange element; and a cylindrical heat storage portion provided in a manner of communicating one side and the other side in the air supply direction for supplying air to the heat exchange element.

[0008] In another aspect of the present invention, the ventilation device includes the above-mentioned total heat exchanger and a space portion provided with the total heat exchanger. Advantageous Effects

[0009] As described above, according to the present disclosure, it is possible to provide a total heat exchanger and a ventilation device having a humidity control function and capable of reducing thermal resistance to effectively perform heat exchange. Brief Description of the Drawings

[0010] Figure 1is a schematic perspective view showing the total heat exchanger of the present disclosure. Figure 2 is a schematic front view showing the total heat exchanger of the present disclosure. Figure 3 is a schematic side view showing the total heat exchanger of the present disclosure. Figure 4 is a schematic perspective view showing the heat storage part provided in the heat exchange element. Figure 5 is a schematic perspective view showing the heat storage part provided with a filter at the inlet or outlet. Figure 6 is a schematic perspective view showing a modified example of the heat storage part provided in the heat exchange element. Figure 7 is a schematic perspective view showing another modified example of the heat storage part provided in the heat exchange element. Figure 8 is a schematic perspective view showing another modified example of the heat storage part provided in the heat exchange element. Figure 9 is a schematic perspective view showing another modified example of the heat storage part provided in the heat exchange element. Figure 10 is a schematic perspective view showing another modified example of the heat storage part provided in the heat exchange element. Figure 11 is a schematic cross-sectional view showing the humidity control material. Figure 12 is a schematic view showing the humidity control material. Figure 13 is a cross-sectional view of a sheet in which the humidity control material is dispersed in an adhesive. Figure 14 is a schematic cross-sectional view showing the humidity control material. Figure 15 is a schematic perspective view showing the heat recovery part. Figure 16 is a schematic perspective view showing the total heat exchanger further including the heat recovery part. Figure 17 is a schematic perspective view showing the total heat exchanger in which the heat exchange element is of a block type. Figure 18 is a schematic perspective view showing the total heat exchanger in which a wall thickness padding part is provided in the heat exchange element. Figure 19 is a schematic perspective view showing the total heat exchanger in which a partition plate is provided in the heat exchange element. Figure 20 is a schematic side view showing the total heat exchanger further including the first fan. Figure 21It is a schematic side view showing a total heat exchanger further including a first fan and a second fan. Figure 22 It is a schematic side view showing a total heat exchanger having a sensible heat section provided on a heat exchange element. Figure 23 It is a schematic side view showing a total heat exchanger having a tapered section provided in the sensible heat section. Figure 24 It is a perspective view showing a modified example of the heat exchange element. Figure 25 It is a front view showing a modified example of the heat exchange element. Figure 26 It is a perspective view showing another modified example of the heat exchange element. Figure 27 It is a front view showing another modified example of the heat exchange element. Figure 28 It is a schematic side view showing the ventilation device of the present disclosure. Figure 29 It is a schematic side view showing a modified example of the ventilation device of the present disclosure. Detailed Description of the Invention

[0011] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. In addition, the embodiments described below do not unduly limit the content of the present disclosure described in the claims, and the configurations described in the embodiments are not all essential as the solution means of the present disclosure. In the drawings, the X-axis is the air supply direction in the depth direction, the Y-axis is the width direction, and the Z-axis is the height direction.

[0012] [Total Heat Exchanger] Figure 1 It is a schematic perspective view showing the total heat exchanger 100 of the present disclosure. Figure 2 It is a schematic front view showing the total heat exchanger 100 of the present disclosure. Figure 3 It is a schematic side view showing the total heat exchanger 100 of the present disclosure. As Figure 1 , Figure 2 and Figure 3 shown, the total heat exchanger 100 of the present disclosure includes a heat exchange element 10, a humidity control material, and a heat storage section 30. In addition, the humidity control material is a thin film or the like, Figure 1 , Figure 2 and Figure 3 are not shown by reference numerals in the drawings. Details thereof will be described in detail later.

[0013] As Figure 1As shown in the figure, the heat exchange element 10 has a three-dimensional shape such as a corrugated shape. By having a three-dimensional shape such as a corrugated shape, the surface area per volume of the heat exchange element 10 is large, and a large heat absorption / release and moisture absorption / release area can be set. As the three-dimensional shape, there are a corrugated shape, a honeycomb shape, etc. In addition, the honeycomb shape is a shape formed by arranging regular hexagonal prisms and three-dimensional figures without gaps (three-dimensional space filling).

[0014] The heat exchange element 10 is provided with an air supply passage 11 so that air can be inserted from A to B or from B to A. In addition, the moisture of the humidity control material that absorbs or releases moisture during heat exchange such as heat dissipation is adjusted by the heat exchange element 10 having a three-dimensional shape. Additionally, Figure 1 The heat exchange element 10 shown in the figure is cylindrical.

[0015] A humidity control material is provided in the heat exchange element 10. The humidity control material absorbs or releases moisture and has a humidity control function. The humidity control material is made by adding a water-absorbing resin to a humidity control liquid described later, stirring, and swelling to produce an adhesive slurry of the humidity control material. This slurry is impregnated and coated in the heat exchange element 10 and dried and adhered. In this way, by impregnating and coating this slurry in a part or all of the heat exchange element 10, an area of the desired humidity control material can be formed.

[0016] In addition, as Figure 1 , Figure 2 and Figure 3 shown, the heat storage unit 30 is provided so that one side A and the other side B in the air supply direction of supplying air to the heat exchange element 10 are communicated. In addition, as Figure 4 shown, the heat storage unit 30 is in a cylindrical shape capable of supplying air inside the heat storage unit 30, and is provided with a ventilation air passage 32 having a smaller pressure loss than the heat exchange element 10. In addition, the ventilation air passage 32 may not be provided, and the heat storage unit 30 may be in a rod shape. In addition, heat exchange also occurs in the ventilation air passage 32. Since the heat exchange element 10 is three-dimensional, heat is easily filled inside. Therefore, the heat storage unit 30 is provided inside the heat exchange element 10. In addition, the heat storage unit 30 is preferably provided at the center of the axis of the heat exchange element 10. That is, the heat storage unit 30 is preferably provided so as to penetrate the center of the air supply surface (YZ plane) of the heat exchange element 10. In addition, one or more heat storage units 30 may be provided.

[0017] In the total heat exchanger 100 of the present disclosure, the humidity control material absorbs moisture from high-humidity and high-temperature air in the air, and the adsorption heat and desorption heat during this moisture absorption are released by the heat exchange element 10 having a three-dimensional shape and the heat storage unit 30 to perform heat exchange.

[0018] With the heat exchange element 10 having a three-dimensional shape, the surface area per unit volume is large, and a large heat absorption / dissipation and moisture absorption / dissipation area can be set. However, on the other hand, since the porosity is large, the heat capacity of the structure is extremely small, and when storing the heat of adsorption generated when the humidity control material absorbs moisture, the temperature rise becomes large, resulting in an increase in relative humidity and a reduction in the performance of the humidity control material. Therefore, by providing the heat storage section 30, the heat of absorption of the humidity control material can be efficiently dissipated. Thus, the total heat exchanger 100 of the present disclosure has a humidity control function, can reduce the thermal resistance, and can efficiently perform heat exchange. In addition, by efficiently dissipating the heat of absorption of the humidity control material, the dripping caused by the droplet carrying phenomenon of the humidity control material can be suppressed.

[0019] The heat exchange element 10 and the heat storage section 30 are preferably made of a metal with high thermal conductivity such as aluminum, iron, or copper to facilitate heat exchange. In addition, the heat exchange element 10 and the heat storage section 30 can be the same material or different materials.

[0020] As Figure 6 shown, water 37 can also be provided in the heat storage section 30. In this way, the total heat exchanger 100 can be made lighter. This water 37 is filled in the heat storage section 30.

[0021] As Figure 7 shown, gelled water 34 and highly thermally conductive fibers 35 as highly thermally conductive substances can also be provided in the heat storage section 30. The highly thermally conductive fibers 35 are added to the gelled water 34 and held. In this way, heat exchange can be efficiently performed, and the total heat exchanger 100 can be made lighter. The material of the highly thermally conductive fibers 35 is metal or carbon. In addition, Figure 7 the heat storage section 30 shown is rod-shaped. In addition, in Figure 7 , for convenience, the display of the gelled water 34 is omitted.

[0022] As Figure 8 shown, gelled water 34 and highly thermally conductive irregular substances 36 as highly thermally conductive substances can also be provided in the heat storage section 30. The highly thermally conductive irregular substances 36 are added to the gelled water 34 and held. The material of the highly thermally conductive irregular substances 36 is metal, and they are metal-made irregular fillers. The highly thermally conductive irregular substances 36 are used to increase the contact area with the gelled water 34. If only the highly thermally conductive irregular substances 36 are increased, there is a concern that the liquid is difficult to flow and the thermal conductivity is reduced. However, by using the heat storage section 30 as a container and using gelled water 34, the heat storage section 30 can have appropriate thermal conductivity. In addition, in this way, heat exchange can be efficiently performed, and the total heat exchanger 100 can be made lighter. In addition, Figure 8 the heat storage section 30 shown is rod-shaped. In addition, in Figure 8 , the display of the gelled water 34 is omitted for convenience.

[0023] As Figure 9 shown, convection-controlled water 37 can also be provided inside the heat storage section 30 and outside the ventilation air passage 32. The water 37 controls convection through the wall spacing. If the distance between the outer wall of the ventilation air passage 32 and the inner wall of the tube filled with water 37 is small, no convection will occur (the length of the above distance that determines the upper limit of no convection due to the viscosity of the liquid, etc.). On the other hand, as the distance between the outer wall of the ventilation air passage 32 and the inner wall of the tube filled with water 37 increases, convection occurs in the divided regions, and further as this distance increases, convection of the entire liquid occurs. Through such convection control, since the water 37 is convective, heat exchange can be efficiently performed, and the total heat exchanger 100 can be made lighter. In addition, based on the structure of this convection control, by setting the length of the distance between the outer wall of the ventilation air passage 32 and the inner wall of the tube filled with water 37 to a degree where convection occurs in the divided regions, compared with the structure relying only on heat conduction and the structure generating overall convection, the heat transfer speed can be further increased. Additionally, Figure 9 the heat storage section 30 shown is cylindrical. In addition, in Figure 9 , for convenience, the display of the convection-controlled water 37 is omitted.

[0024] As Figure 10 shown, components 38 with water placed in corrosion-resistant aluminum containers and corrosion-resistant aluminum components 39 as highly thermally conductive substances can also be provided inside the heat storage section 30 within the components 38 with water placed in corrosion-resistant aluminum containers. Figure 10 The heat storage section 30 shown is rod-shaped. In this way, heat exchange can be efficiently performed, and the total heat exchanger 100 can be made lighter. Additionally, in Figure 10 , for convenience, the display of the water is omitted.

[0025] The corrosion-resistant aluminum component 39 is not limited to aluminum components, but is a substance with high thermal conductivity, and components that do not corrode in water can be listed, such as copper, stainless steel, silver, gold, etc.

[0026] In addition, the shape of the corrosion-resistant aluminum component 39 can be listed, for example, as disk-shaped or other spherical, cubic, cuboid shapes, etc. The shape of the corrosion-resistant aluminum component 39 has a heat conduction path provided between it and the component 38 with water placed in the corrosion-resistant aluminum container. Even for the water in the component 38 with water placed in the corrosion-resistant aluminum container, as long as there is a certain degree of contact area for heat conduction, it is not limited to disk-shaped, etc.

[0027] In Table 1, the method in which the heat storage section 30 is made of stainless steel (SUS304) and Figure 10The volumetric specific heat, thermal conductivity, temperature conductivity, and weight are shown in the manner described. Additionally, the heat storage section 30 has dimensions of Φ54mm×100mm. Further, the thickness of the corrosion-resistant aluminum container of the component 38 containing water in the corrosion-resistant aluminum container is 1mm, and the occupancy rate of water relative to the heat storage section 30 is 7%. The corrosion-resistant aluminum container is sealed or closed with a gasketed lid. Moreover, within the component 38 containing water in the corrosion-resistant aluminum container, a corrosion-resistant aluminum component 39 with an occupancy rate of 10% relative to the heat storage section 30 is arranged.

[0028] Table 1

[0029] Next, the thermal conductivity of the heat storage section 30 having water 37 etc. inside the heat storage section 30 will be described. The manner in which the heat storage section 30 is made of stainless steel (SUS304) and Figure 10 the thermal conductivity of the manner shown are presented in Table 1. As shown in Table 1, compared with the manner in which the heat storage section 30 is made of stainless steel (SUS304), Figure 10 the volumetric specific heat of the manner shown is larger and the thermal conductivity is smaller. Additionally, compared with the manner in which the heat storage section 30 is made of stainless steel (SUS304), Figure 10 the temperature conductivity of the manner shown is smaller and the weight also becomes a smaller value. Therefore, compared with the manner in which the heat storage section 30 is made of stainless steel (SUS304), Figure 10 the manner shown can perform heat exchange efficiently and can make it possible to lighten the weight of the total heat exchanger.

[0030] To adjust the air volume of the air supply from the air supply direction A to B or from B to A within the ventilation air passage 32, a filter 33 may be provided in the heat storage section 30. For example, near the opening 31 of the heat storage section 30, when the air volume ratio from A to B in the air supply direction is larger than that from B to A, in order to prevent deviation in the heat exchange amount in the X direction within the heat storage section 30, as Figure 5 shown, a filter 33 is provided on the A side to adjust the air volume entering from the A side and the air volume entering from the B side. Additionally, when the air volume ratio from B to A is larger than that from A to B, a filter 33 is provided on the B side. That is, near the opening 31 of the heat storage section 30, a filter 33 is provided on the side with the larger air volume. Moreover, use Figure 20 will be described later. Additionally, the filter 33 only needs to adjust the air volume entering the ventilation air passage 32 from the opening 31 of the heat storage section 30, and is not limited to the filter 33.

[0031] Next, the moisture conditioning material provided in the heat exchange element 10 will be described.

[0032] Figure 11 is a cross-sectional view schematically showing the moisture conditioning material 20. As Figure 11As shown, the humidity control material 20 includes: a water-absorbing material 21 containing a resin and / or a clay mineral, and a humidity control liquid 22 which is a humidity control component that absorbs or releases moisture and has a humidity control function. The humidity control liquid 22 is impregnated in the water-absorbing material 21. Depending on the humidity of the environment in which the humidity control material 20 is placed, the humidity control material 20 absorbs moisture contained in the air of the place to absorb moisture, or releases moisture contained in the humidity control material 20 into the air to humidify. In addition, the humidity control liquid 22 can be impregnated not only in the water-absorbing material 21, but also in a support 23 that supports the humidity control material 20 (water-absorbing material 21). The support 23 will be described later.

[0033] The humidity-controlling material 20 may be in a powdery, granular, or blocky form, and may be used by supporting the resin on a ventilation substrate so as to be effectively in contact with the air.

[0034] The water-absorbing material 21 has a function of holding the humidity-conditioning liquid 22. Since the water-absorbing material 21 holds the humidity-conditioning liquid 22, a humidity-conditioning material 20 having a high ratio of surface area to volume can be realized. Therefore, the speed of absorbing or releasing water can be increased. Therefore, the humidity-conditioning material 20 having a high humidity-conditioning speed can be realized.

[0035] The water-absorbing material 21 is preferably a water-absorbing resin (particles, powder). As a result, the water-absorbing material 21 can be properly impregnated with the humidity-conditioning liquid 22, and the humidity-conditioning effect can be further improved. As specific examples of water-absorbing resin materials, ionic resins and non-ionic resins are preferred. As ionic resins, alkali metal salts of polyacrylic acid, starch-acrylate graft polymers, etc. can be cited. As specific examples of alkali metal salts of polyacrylic acid, sodium polyacrylate, etc. can be cited. As non-ionic resins, vinyl acetate copolymers, maleic anhydride copolymers, polyvinyl alcohol, polyalkylene oxide, etc. can be cited. As a metal salt component, it is more preferred to form hydrate crystals within a specified humidity range, thereby promoting rapid moisture absorption and release with a specific humidity range as a threshold.

[0036] The humidity control liquid 22 preferably contains a deliquescent substance that absorbs moisture in the air and deliquesces and at least one selected from polyols. This can further improve the humidity control effect.

[0037] Specific examples of the polyol include at least one selected from the group consisting of glycerol, propylene glycol, butylene glycol, pentylene glycol, trimethylolpropane, butanetriol, ethylene glycol, diethylene glycol, triethylene glycol, etc., wherein a polyol having three or more hydroxyl groups, such as glycerol, is more preferably used. In addition, the polyol may be a dimer or a polymer.

[0038] As deliquescent substances, they can be classified into salts and water-soluble organic substances. Specific examples of salts include, for example, sodium formate, potassium formate, ammonium formate, sodium acetate, potassium acetate, lithium acetate, ammonium acetate, sodium lactate, potassium lactate, sodium benzoate, potassium benzoate, sodium propionate, potassium propionate, calcium chloride, lithium chloride, magnesium chloride, calcium chloride, lithium chloride, potassium chloride, sodium chloride, zinc chloride, aluminum chloride, lithium bromide, calcium bromide, potassium bromide, sodium hydroxide, sodium pyrrolidone carboxylate, potassium carbonate, calcium citrate, sodium citrate, potassium citrate, lithium citrate, etc. These salts can contain only one kind or two or more kinds. Among them, sodium formate, potassium formate, sodium acetate, potassium acetate, and potassium carbonate, which have a large amount of moisture absorption and desorption per unit weight, are preferred. Specific examples of water-soluble organic substances include, for example, saccharides such as sucrose, amylopectin, glucose, xylitol, fructose, mannitol, sorbitol, etc.; carboxylic acids such as citric acid, etc.; and amides such as urea, etc.

[0039] Relative to the water-absorbing material 21, the amount of the humidity control liquid 22 is 1 part by weight or more and 1000 parts by weight or less relative to the amount of the water-absorbing material 21. In this way, the amounts of the water-absorbing material 21 and the humidity control liquid 22 are appropriate, and the humidity control function can be further improved. In addition, the water-absorbing material 21 is preferably in powder form or granular form.

[0040] Figure 12 It is a diagram schematically showing the humidity control material 20. As Figure 12 shown, the humidity control material 20 (water-absorbing material 21) can also be supported on the carrier 23. In addition, the carrier 23 can be impregnated with moisture.

[0041] The total heat exchanger 100 of the present disclosure coats the above-mentioned humidity control material 20 on the heat exchange element 10, or immerses the heat exchange element 10 in a liquid containing the humidity control material 20 to attach the humidity control material 20 to the heat exchange element 10.

[0042] Figure 13 It is a diagram schematically showing another form of the humidity control material 20, which is a cross-sectional view of a sheet in which an adhesive (carrier 23) is dispersed between water-absorbing bodies 24 and the humidity control material 20 is dispersed in the adhesive. As Figure 13 shown, the humidity control material 20 (water-absorbing material 21) can also be carried on the carrier 23. In addition, the water-absorbing body 24 can contain the water-absorbing material 21. In addition, the carrier 23 can be impregnated with moisture. As long as a material containing the Figure 13 humidity control material 20 shown is provided in the heat exchange element 10.

[0043] In addition, it is preferable that the carrier 23 carrying the humidity control material 20 is selected as the optimal one according to the use. As in the case of the heat exchange element 10, in the case of heat transfer, a metal material such as aluminum or ceramics is preferable. When it is desired to increase the moisture absorption and desorption capacity for humidity control purposes, a raw material capable of wetting and holding the humidity control liquid 22 is preferable. In the latter case, for example, it is composed of hydrophilic fibers such as a porous body, a non-woven fabric, or a woven fabric. In particular, a non-woven fabric such as a non-woven fabric with high water vapor permeability is preferable. In addition, the carrier 23 may contain an adhesive.

[0044] As the shape of the carrier 23, it is in a sheet form, and it can also be formed into various shapes such as a flat plate shape, a pleated shape, or a honeycomb shape for use. For example, a sheet material is first formed into a corrugated shape (sheet) through a bellows, and then fixed and integrated with a flat gasket made of the same or different materials as the sheet through an adhesive. In addition, the carrier 23 may have flexibility. The carrier 23 can be deformed. In other words, it can also be maintained in any shape (bent shape, curved shape, etc.).

[0045] Figure 14 It is a cross-sectional view schematically showing the humidity control material 20. As Figure 14 shown, the humidity control material 20 is carried on the carrier 23 and held in the water absorbent body 24, and it can be provided in the heat exchange element 10. In this way, the contact area with air increases, and the humidity control function can be improved.

[0046] The water absorbent body 24 may contain the water absorbent material 21. In addition, the water absorbent body 24 can be in a powder form, a granular form, or a sheet form.

[0047] In addition, in addition to the above, the humidity control material 20 can also use type B silica gel, polymer adsorbing materials, etc.

[0048] In addition, as the humidity control component, on the premise of containing the above metal salt, other components can be added as additives for adjusting the crystallization threshold humidity. As an example, substances that become nuclei for other metal salts, polyhydric alcohols, or hydrate crystals can be cited. As specific examples of each generating material, carboxylic acids having two or more carboxyl groups and amides having two or more amide groups can be listed. The carboxylic acid can use the above substances. The crystallization threshold humidity refers to the threshold in the humidity at which the humidity control material sometimes crystallizes when it becomes low humidity.

[0049] In addition, "humidity conditioning" refers to adjusting the relative humidity to be close to a specified humidity range. Specifically, for example, when 50% RH is set as the specified relative humidity, when the relative humidity is higher than 50% RH, the humidity conditioning material 20 absorbs (hygroscopic) moisture, and when the relative humidity is lower than 50% RH, the humidity conditioning material 20 releases (desorbs) moisture. Generally, the specified humidity range is related to the material and moisture content of the humidity conditioning material 20. Specifically, for example, the specified humidity range is related to the moisture content in the humidity conditioning liquid 22.

[0050] Hereinafter, the total heat exchanger 100 of the present disclosure will be further described.

[0051] Figure 15 is a perspective view schematically showing the heat recovery section 40. Figure 16 is a schematic perspective view of the total heat exchanger 100 further including the heat recovery section 40. When the Figure 15 shown heat recovery section 40 is installed in the Figure 1 shown heat exchange element 10, it becomes the Figure 16 total heat exchanger 100. In addition, Figure 16 the shown heat storage section 30 does not protrude from the front surface of the heat exchange element 10, and the heat recovery section 40 is in contact with the heat exchange element 10. In addition, the heat recovery section 40 is provided on the first opening 12a side on the A side and / or the second opening 12b side on the B side of the heat exchange element 10.

[0052] The heat recovery section 40 is a component for recovering or releasing heat, and is preferably made of a metal with high thermal conductivity such as aluminum, iron, or copper.

[0053] Although the humidity conditioning material 20 can be provided in the heat storage section 30 and the heat recovery section 40, the heat storage section 30 and the heat recovery section 40 may not be provided with the humidity conditioning material 20 in order to perform heat exchange with the heat exchange element 10 and easily release heat.

[0054] The surface of the heat exchange element 10 is preferably a hydrophilic treatment surface. Since the slurry for adding the humidity conditioning material 20 is an aqueous solvent, by making the heat exchange element 10 a hydrophilic surface, the adhesion between the heat exchange element 10 and the humidity conditioning material 20 can be carried without an adhesive, and the heat transfer efficiency of the adsorption heat to the heat exchange element 10 is improved. In addition, the production efficiency of the total heat exchanger 100 is improved. As the hydrophilic treatment method in the surface treatment of the heat exchange element 10, methods such as providing a silica-based coating mainly composed of sodium silicate, providing a resin-based coating using a hydrophilic resin, providing a boehmite coating, and an anodic oxidation coating can be cited. Furthermore, it becomes easy to attach the humidity conditioning material 20 to the heat exchange element 10.

[0055] Figure 17 is a schematic perspective view of the total heat exchanger 100 showing that the heat exchange element 10 is of a block type.Figure 1 and Figure 16 the heat exchange element 10 shown is cylindrical, but it can also be in a block shape as shown in Figure 17 The heat resistance of the cylindrical type is large in the isotropic direction within the circular surface, while the heat resistance of the block type is large in different directions within the four-cornered surface.

[0056] Figure 18 is a schematic perspective view showing the total heat exchanger 100 in which a wall thickness padding portion 13 is provided within the heat exchange element 10. As shown in Figure 18 In the heat exchange element 10, the wall thickness padding portion 13 can also be provided at a prescribed interval on the outer periphery of the axis of the heat exchange element 10. In this way, the heat storage amount increases, the thermal conductivity also improves, the heat resistance is reduced, and heat exchange can be efficiently performed.

[0057] The wall thickness padding portion 13 is made of a material thicker than the base material of the heat exchange element 10. The wall thickness padding portion 13 can also extend in the X direction within the heat exchange element 10 and be formed in a cylindrical shape so as to surround the heat storage portion 30. The humidity control material 20 can be provided or not provided in the wall thickness padding portion 13. The wall thickness padding portion 13 is preferably made of a metal with high thermal conductivity such as aluminum, iron, or copper.

[0058] Figure 19 is a schematic perspective view showing the total heat exchanger 100 in which a partition plate 14 is provided within the heat exchange element 10. As shown in Figure 19 In the heat exchange element 10, the partition plate 14 can also be provided from the periphery of the axis of the heat exchange element 10 toward the outer periphery direction. In addition, the partition plate 14 can be provided from the heat storage portion 30 toward the outer periphery direction of the heat exchange element 10. In this way, the heat storage amount increases, the thermal conductivity also improves, the heat resistance is reduced, and heat exchange can be effectively performed.

[0059] The partition plate 14 can also be made of a material thicker than the base material of the heat exchange element 10. The partition plate 14 is preferably made of a metal with high thermal conductivity such as aluminum, iron, or copper.

[0060] Figure 20 is a schematic side view showing the total heat exchanger 100 further including a first fan 60. As shown in Figure 20 In the periphery of the heat exchange element 10, a first fan 60 can also be provided as one side A or the other side B of the heat exchange element 10, and the first fan 60 is used to send air to the heat exchange element 10 and the heat storage portion 30. For example, the first fan 60 is provided on the side of the first opening 12a of the heat exchange element 10, and the supply air enters from the first opening 12a and is discharged through the air supply path 11 to the second opening 12b. In addition, the supply air is discharged from the A side to the B side through the heat storage portion 30. In this way, it has a humidity control function and can efficiently perform heat exchange. In addition, the deviation of the air volume can be prevented and heat exchange can be efficiently performed.

[0061] In addition, the axis P1 of the first fan 60 is preferably parallel to the air supply path 11 that supplies air inside the heat exchange element 10. That is, the air supply direction of the first fan 60 is parallel to the air supply path 11. In addition, the central portion of the heat exchange element 10 is disposed on the axis P1 of the first fan 60.

[0062] Figure 20 The size of the arrow indicates the magnitude of the air volume. As Figure 20 shown, when a fan is provided near the heat exchange element 10, when the air supply direction is from A to B, the air volume near the center of the heat exchange element 10 (near the axis P1 of the first fan 60) is smaller than that outside. On the other hand, if the first fan 60 rotates in the reverse direction and the air supply direction is from B to A, the air volume near the center of the heat exchange element 10 (near the axis P1 of the first fan 60) is larger than that outside. In this case, a heat storage portion 30 having a filter 33 as Figure 5 shown is provided to suppress the deviation of the air volume supplied to the heat exchange element 10. As Figure 20 shown, when the air supply direction is from B to A and the air volume near the center of the heat exchange element 10 (near the axis P1 of the first fan 60) is strong, a filter 33 is provided at the opening 31 on the B side of the heat storage portion 30 to limit the air volume near the center of the heat exchange element 10 and suppress the deviation of the overall air volume.

[0063] Figure 21 is a schematic side view showing a total heat exchanger 100 further including a first fan 60 and a second fan 70. As Figure 21 shown, a first fan 60 for supplying air to the heat exchange element 10 and the heat storage portion 30 may also be provided on one side A or the other side B of the heat exchange element 10, and a second fan 70 for supplying air to the heat exchange element 10 and the heat storage portion 30 may be provided on the other side B or one side A of the heat exchange element 10. The first fan 60 and the second fan 70 use an axial flow fan or a blower fan provided with a propeller.

[0064] In addition, the axis P1 of the first fan 60 and the axis P2 of the second fan 70 are preferably parallel to the air supply path 11 that supplies air inside the heat exchange element 10. That is, the air supply directions of the first fan 60 and the second fan 70 are parallel to the air supply path 16. In addition, the central portion of the heat exchange element 10 is disposed on the axis P1 of the first fan 60 and the axis P2 of the second fan 70.

[0065] In addition, the rotation directions of the first fan 60 and the second fan 70 and the angles of the fans are different from each other, and the air supply directions can also be the same. That is, it is configured that the rotation of the first fan 60 is right-handed, the rotation of the second fan 70 is left-handed, and the angles of the fans of the first fan 60 and the second fan 70 are opposite to each other, thereby achieving the same air supply direction. In this way, the deviation of the air volume between the central part and the outside of the heat exchange element 10 described later can be further improved. In addition, the condensation caused by the excessive moisture absorption of the humidity control material 20 can be further prevented.

[0066] Figure 22 FIG. 4 is a schematic side view showing the total heat exchanger 100 provided with the sensible heat section 50 in the heat exchange element 10. As Figure 22 shown, the sensible heat section 50 may also be provided in either one A or the other B of the heat exchange element 10. The sensible heat section 50 releases the heat from the heat exchange element 10 or the heat recovery section 40. In this way, the heat exchange can be promoted and the heat capacity of the total heat exchanger 100 can be increased. The sensible heat section 50 is preferably made of a metal with high thermal conductivity such as aluminum, iron, or copper.

[0067] In addition, as Figure 22 shown, when the first fan 60 is provided in one A of the heat exchange element 10, it is preferable to provide the sensible heat section 50 in the other B of the heat exchange element 10. In this way, the air volume outside the heat exchange element 10 can be increased, and the deviation of the air volume in the heat exchange element 10 described in Figure 20 can be reduced.

[0068] Furthermore, as Figure 23 shown, a tapered portion 51 may be provided in the sensible heat section 50 in either one A or the other B of the heat exchange element 10. When the first fan 60 is provided in one A of the heat exchange element 10, it is preferable to provide the sensible heat section 50 having the tapered portion 51 in the other B of the heat exchange element 10. By having the tapered portion 51, the air volume outside the heat exchange element 10 can be further increased, and the deviation of the air volume in the heat exchange element 10 can be further reduced.

[0069] The modification examples of the heat exchange element 10 will be described in detail below.

[0070] Figure 24 FIG. 5 is a perspective view showing a modification example of the heat exchange element 10. Figure 25 FIG. 6 is a front view showing a modification example of the heat exchange element 10. As Figure 24 and Figure 25 shown, the heat exchange element 10 can be in a honeycomb shape.

[0071] Figure 26 FIG. 7 is a perspective view showing another modification example of the heat exchange element 10. Figure 27 FIG. 8 is a front view showing another modification example of the heat exchange element 10. AsFigure 26 as well as Figure 27 As shown in FIG. 1 , two heat exchange elements 10 ′ and 10 ″ may be used to form a shape that overlaps each other in the X direction. Figure 27 As shown in FIG. 1 , the overlapping position in the X direction can be set to an offset shape that is staggered in the Z direction or the Y direction. Figure 27 As shown, in the offset shape, the opening 12 ′ a of the heat exchange element 10 ′ disposed on the front side and the opening 12 ″ a of the heat exchange element 10 ″ disposed on the back side are closed.

[0072] In summary, the total heat exchanger 100 according to the present disclosure has a humidity control function, can reduce thermal resistance and perform heat exchange efficiently.

[0073] [Ventilation device] Next, the ventilation device 200 of the present disclosure will be described. Figure 28 as well as Figure 29 FIG. 2 is a side view schematically showing the ventilation device 200 of the present disclosure. Figure 28 and Figure 29 As shown in FIG. 1 , the ventilator 200 of the present disclosure includes the total heat exchanger 100 and the space 80 in which the total heat exchanger 100 is provided. The structure of the total heat exchanger 100 and the like are as described above.

[0074] The ventilation device 200 includes a plurality of total heat exchangers 100. If the total heat exchangers 100 are at least a first total heat exchanger 101 and a second total heat exchanger 102, then Figure 28 As shown, when the first total heat exchanger 101 supplies air to the space 80, the second total heat exchanger 102 exhausts the space 80. In addition, after a predetermined time, for example, after several tens of seconds, Figure 29 As shown, the first total heat exchanger 101 exhausts the space portion 80, and the second total heat exchanger 102 supplies air to the space portion 80. Then, the air supply and exhaust of the first total heat exchanger 101 and the second total heat exchanger 102 are switched at a predetermined time cycle. In this way, the ventilation device 200 of the present disclosure can be set to a time-sharing method of switching the air supply and exhaust after a predetermined time. In this way, the space portion 80 can be ventilated while heat exchange is performed more efficiently.

[0075] The space portion 80 may be a space in a room, a car, a train, or the like. Therefore, the ventilator 200 of the present disclosure may be used in a residence or in a vehicle. In addition, the ventilator 200 may be installed on a wall of a partitioned space and the total heat exchanger 100 may be installed.

[0076] In summary, the ventilation device 200 according to the present disclosure has a humidity control function, can reduce thermal resistance and perform heat exchange efficiently.

[0077] In addition, as described above, each embodiment and each example of the present disclosure have been described in detail. However, it is easily understood by those skilled in the art that various modifications can be made without substantially departing from the new matters and effects of the present disclosure. Therefore, all such modified examples are included within the scope of the present disclosure.

[0078] For example, in the specification or the drawings, a term that is described at least once together with a different term that is more general or synonymous can be replaced with the different term anywhere in the specification or the drawings. In addition, the structures and operations of the total heat exchanger and the ventilation device are not limited to the contents described in each embodiment and each example of the present disclosure, and various modifications can be made.

Claims

1. A total heat exchanger, characterized in that, It includes: a heat exchange element having a three-dimensional shape; a humidity control material provided on the heat exchange element; and a cylindrical heat storage part provided so as to communicate one side and the other side in the air supply direction for supplying air to the heat exchange element.

2. The total heat exchanger according to claim 1, wherein, A heat recovery part is also provided on one side and the other side of the heat exchange element, and the heat recovery part is used for recovering heat.

3. The total heat exchanger according to claim 1, characterized in that, The heat exchange element is of a block type.

4. The total heat exchanger according to claim 1, characterized in that, The heat exchange element is cylindrical.

5. The total heat exchanger according to claim 1, characterized in that, The heat storage part is provided at the central part in the air supply direction of the heat exchange element.

6. The total heat exchanger according to claim 1, wherein, A sensible heat part is also provided on one side or the other side of the heat exchange element.

7. The total heat exchanger according to claim 1, characterized in that, Inside the heat exchange element, a wall thickness padding part is provided at a prescribed interval on the outer periphery of the axis of the heat exchange element.

8. The total heat exchanger according to claim 1, characterized in that, Inside the heat exchange element, a partition plate is provided from the periphery of the axis of the heat exchange element toward the outer peripheral direction.

9. The total heat exchanger according to claim 1, characterized in that, A first fan is also provided on one side or the other side of the heat exchange element, and the first fan is used for supplying air to the heat exchange element and the heat storage part.

10. The total heat exchanger according to claim 1, characterized in that, It further includes: a first fan provided on one side or the other side of the heat exchange element for supplying air to the heat exchange element and the heat storage part; and a second fan provided on the other side or one side of the heat exchange element for supplying air to the heat exchange element and the heat storage part, The first fan is provided on one side of the heat exchange element, and the second fan is provided on the other side of the heat storage part.

11. The total heat exchanger according to claim 1, characterized in that, It further includes: a first fan provided on one side or the other side of the heat exchange element for supplying air to the heat exchange element; and a sensible heat part having a tapered part on one side or the other side of the heat exchange element.

12. The total heat exchanger according to claim 1, characterized in that, Inside the heat storage part, there is gelled water and highly heat-conductive irregular substances, or gelled water and highly heat-conductive irregular substances.

13. The total heat exchanger according to claim 1, characterized in that, There is water with convection control inside the heat storage part.

14. The total heat exchanger according to claim 1, characterized in that, Inside the heat storage part, in the component with water in an aluminum container and in the component with water in the aluminum container, there is also a corrosion-resistant aluminum component.

15. An air exchange device, characterized in that, It has: a total heat exchanger according to any one of claims 1 to 14; a space part where the total heat exchanger is provided.

16. The ventilation device according to claim 15, characterized in that, The ventilation device is for residential or vehicle use.

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