KR100867947B1 - Electrothermal heat exchanger with antibacterial and deodorizing function and heat recovery ventilator with the same - Google Patents

Abstract

The present invention relates to an electrothermal heat exchanger and a heat recovery ventilator, and a circular wheel (7) having a motor shaft hole (9) formed in the center thereof and accommodating a mat (1) therein, and the wheel (7). It consists of a reduction motor 11 is inserted into the shaft 13 of the motor shaft hole (9), the indoor air passes through one side of the wheel (7) and the outdoor air through the other side of the wheel (7) inside In the heat exchanger heat exchanger heat exchanged by the rotating wheel (7) containing the mat, the mat is formed by alternately stacking the heat transfer sheet and the antibacterial deodorizing sheet, the heat transfer sheet has a diameter of 20㎛ or less, the length is 3 10 cm and composed of a heat-retaining fiber filament having a polyester or nylon material, and the antibacterial and deodorizing sheet is composed of a fiber filament mixed with charcoal powder, and according to the present invention, a mat in which heat exchange occurs Air contact area This allows high heat exchange efficiency on the mat, minimizes the growth of bacteria on the mat, and eliminates the smell of indoor air contained in the mat before it is reintroduced into the room. By removing almost all of the bacteria in the external air finally put there is an effect that can be put into the clean air.

Description

ANTIFUNGAL AND DEODORIZING HEAT TRANSFER TYPE HEAT EXCHANGER AND HEAT RECOVERY VENTILATION THEREWITH}

Figure 1a is an exploded perspective view of the heat exchanger having an antibacterial and deodorizing function according to the present invention.
Figure 1b is an assembled perspective view of the heat exchanger having an antibacterial and deodorizing function according to the present invention.
Figure 2 is a front view of the ceiling heat recovery ventilator provided with an electrothermal heat exchanger according to the present invention.
3A is a plan view of the top cover of the ceiling heat recovery ventilator shown in FIG.
Figure 3b is a front view showing the lower cover of the ceiling-heat recovery ventilator shown in Figure 2 open.
4A is a cross-sectional view of the ceiling heat recovery recirculation apparatus shown in FIG. 2 taken along an outdoor air inflow path.
4B is a cross-sectional view of the ceiling heat recovery ventilator illustrated in FIG. 2 taken along an indoor air discharge path.
Explanation of symbols on the main parts of the drawings
1: Mat 3: Heat Transfer Sheet
5: Antibacterial deodorant sheet 7: Wheel
9: motor shaft 11: reduction motor
13: motor shaft 15: titanium oxide network
17: titanium oxide network 19: lower cover
21: upper cover 23, 25: sleeve
27: intake duct 29: exhaust duct
31: outside air inlet 33: air outlet
35: bulkhead 37: ultraviolet lamp
39: blower case for intake 41: blower case for exhaust
43: air sterilization chamber 45: exhaust blower
47: Intake blower 49: Intake air inlet
51: housing 53a, 53b: diaphragm
55, 57: through 59: ceiling
61: fresh air inlet

The present invention relates to an electrothermal heat exchanger and a heat recovery ventilator, and more particularly, by dividing a section into a rotating heat-retaining fiber mat and simultaneously introducing indoor air and outdoor air in opposite directions, The present invention relates to an electrothermal heat exchanger and a heat recovery ventilator having the same, which the fiber mat contains and transfers to outdoor air.
BACKGROUND ART Conventional heat exchangers that achieve heat by heat transfer material mats that rotate heat transfer between air and air are made of various structures. As an example, Korean Patent No. 0157214 includes "a housing comprising first and second cross-sections provided for carrying separate air flows; a random matrix media and means for supporting said random matrix media, said housing A heat exchanger rotatably mounted within and provided across the first and second cross-sections, and a heat exchanger comprising means for rotating the heat exchanger, wherein the random matrix media has a size of 25 μm to 150 μm. And a heat exchanger heat exchanger characterized by an interconnected small diameter heat retaining fibrous mat consisting of a filament having a diameter of. In order to reduce resistance to air flow, the present invention uses a filament having a diameter of 25 μm to 150 μm. However, when the diameter of the filament reaches 25㎛ to 150㎛ the surface area of the filament in contact with the air is greatly reduced the efficiency of heat transfer. Nevertheless, the invention of the above-mentioned 0157214 enlarges the filament diameter to 25 mu m to 150 mu m because only a single layer of mat is intended. In addition, the above-described invention of 0157214 forms a mat from a long connected single strand filament. However, the single strand filament has the convenience of forming such as interconnection by a needle punch, but has a disadvantage in that it is difficult to increase contact interview with air.
In addition, since the inside of the mat of the conventional heat transfer heat exchanger including the invention of the 001214214 is a low temperature external air and a high temperature indoor air at the same time, the water vapor contained in the high temperature indoor air is condensed in the process of passing through the mat. Because of this condensate, the mat is easily propagated in the mat, and the bacteria are introduced into the room by the outdoor air passing through the mat.
In addition, the conventional heat exchanger has a problem that the odorous substances in the indoor air is encased in the mat in the process of passing through the mat of the heat exchanger, and then re-introduced back into the room by the outdoor air passing through the mat.

The present invention has been made to solve the problems of the conventional heat exchanger, the present invention is to provide a heat exchanger that can maximize the air contact area of the mat in which heat exchange takes place.
Another object of the present invention is to provide an electrothermal heat exchanger capable of maximally suppressing the growth of bacteria in the mat.
It is still another object of the present invention to provide an electrothermal heat exchanger which can remove the smell of indoor air contained in the mat before it is reintroduced into the room.
Still another object of the present invention is to provide a ventilator capable of effectively removing bacteria in external air finally put into the room and introducing clean air into the room.

Heat transfer type heat exchanger according to the present invention to achieve the above object is composed of a circular wheel that is formed with a motor shaft hole in the center and accommodating a mat therein, and a reduction motor in which the shaft is inserted into the motor shaft hole of the wheel. The heat transfer type heat exchanger is heat exchanged by a rotating wheel in which the mat is accommodated therein by passing indoor air to one side of the wheel and outdoor air to the other side of the wheel, wherein the mat has a diameter of 20 μm or less and a length thereof. The heat transfer sheet consisting of a heat-retaining fiber filament made of polyester or nylon and a material of 3 to 10 cm and an antibacterial deodorizing sheet made of fiber filaments mixed with charcoal powder are alternately laminated.
The number of laminated layers of the heat transfer sheet and the antimicrobial deodorant sheet is preferably 1: 1, 2: 1, 1: 2, 2: 3 or 3: 2.
In addition, the ventilation device according to the present invention to achieve the above object is a heat transfer heat exchanger of the above-mentioned by a reduction motor; An exhaust blower which sucks indoor air through the intake air inlet and forms an air flow in the exhaust direction on the mat of the heat exchanger; An intake blower which forms an air stream separated from the air flow in the exhaust direction on the mat of the heat exchanger after inhaling outdoor air, and injects outdoor air into the room through an outside air inlet; An outside air sterilization chamber formed between the outside air inlet and the intake blower; An ultraviolet lamp provided in the external air sterilization chamber; Titanium oxide network installed in the outside air inlet; It includes a technical feature to include.
Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of an electrothermal heat exchanger having an antibacterial and deodorizing function and a heat recovery ventilator having the same according to the present invention.
Figure 1a is an exploded perspective view of an electrothermal heat exchanger having an antibacterial and deodorizing function according to the present invention, Figure 1b is an assembled perspective view of an electrothermal heat exchanger having an antibacterial and deodorizing function according to the present invention, Figure 2 A front view of the ceiling heat recovery ventilator with a heat exchanger according to FIG. 3A is a plan view of an open top cover of the ceiling heat recovery ventilator shown in FIG. 2, and FIG. 3B is a ceiling view of FIG. 2. FIG. 4A is a cross-sectional view of the ceiling heat recovery ventilator shown in FIG. 2 taken along an outdoor air inflow path, and FIG. 4B is a ceiling shown in FIG. The cross-sectional view of the type heat recovery ventilator is cut along the indoor air discharge path.
Referring to FIG. 1A, the heat exchanger having an antibacterial and deodorizing function according to the present invention has a motor shaft hole 9 formed at a center thereof, and a circular wheel 7 formed with a frame capable of accommodating the mat 1 therein. ), A laminated mat (1) accommodated inside the circular wheel (7), and a reduction motor (11) in which the shaft (13) is inserted and fixed in the motor shaft hole (9) of the wheel (7). .
A feature of the heat exchanger heat exchanger according to the present invention is that the mat 1 is made of a laminated structure of a heat transfer sheet 3 made of heat-retaining fibers and an antibacterial deodorizing sheet 5 made of charcoal-containing fibers. In FIG. 1A, a structure in which two heat transfer sheets 3 and three antibacterial deodorization sheets 5 are alternately stacked is illustrated as an example, but according to embodiments, a lamination ratio of the heat transfer sheet 3 and the antibacterial deodorization sheet 5 is illustrated. Can be in various ratios such as 1: 1, 2: 1, 1: 2 or 3: 2. Polyester, nylon, etc. are mentioned as said heat-retaining fiber.
Another feature of the heat transfer heat exchanger according to the present invention is that the heat transfer sheet (3) is cut to about 3-10 cm of a fiber filament having a diameter of 20 μm or less, and then aggregated and press-molded. That is, the present invention maximizes the contact area with the air by sculpting the heat-transfer sheet to form a fiber filament of very small diameter in a short length, while solving the problem of increasing the air resistance according to the laminated structure of the sheet Is there.
Particularly, the heat exchanger type heat exchanger according to the present invention aggregates the fiber filaments mixed with porous charcoal powder and compresses the antimicrobial deodorant sheet (5) together with the heat transfer sheet (3). Not only does it effectively adsorb and remove the material, it also reduces the resistance of the air through the mat. The fiber containing antibacterial and deodorizing charcoal has lower thermal conductivity than pure fiber without impurities, so the heat recovery function is limited. Therefore, the fiber containing lamination with antibacterial and deodorizing sheet performs sufficient heat transfer function by heat transfer sheet. In order to form a heat transfer sheet, a thin fiber having a thickness of 20 μm or less should be cut and used about 3-10 cm. At present, many fibers of 20㎛ or less are made, and as the thickness of the fiber increases, the area of contact with air in the mat having the same volume and density increases, so that the function of retaining and transferring heat is superior to that of the thick material. On the other hand, the fiber mixed with the charcoal powder has a small air resistance due to the porosity of the charcoal powder in the compressed state at the same volume and density as compared with the fiber without the charcoal mixture.
In summer, water vapor contained mainly in humid outside air, and in winter, water vapor contained in warm indoor air may condense as it passes through the mat (1). When the water vapor condenses on the mat (1), the mat is contaminated with bacteria. Air contaminated with bacteria may be supplied to the room. In addition, contaminants in the room are entrapped on the mat as they pass through the mat, thereby introducing contaminants and the resulting odor into the room. The present invention solves this bacteria and odor by making an antibacterial deodorizing sheet (5) from the fiber containing charcoal and laminating it with the heat transfer sheet (3). Charcoal-containing fibers that can be used in the present invention are disclosed in Korean Patent No. 0311832 and the like.
For the most efficient heat recovery, it is preferable that the mat 1 and its constituent sheets 3 and 5 are circular. In addition, even when the mat 1 and the structural sheets 3 and 5 are divided into sectors as shown in FIG. 1A, if the frame strength of the wheel is sufficient, it is preferable to divide the mat as small as possible. . Therefore, in FIG. 1A, the mat 1 and the constituent sheets 3 and 5 are divided into four pieces by way of example. However, the present disclosure is not limited thereto, and the mat 1 and the composition sheets 3 and 5 may be divided into two pieces, three pieces, or five pieces or more. You can also use
Referring to Figure 1b, while passing the indoor air and outdoor air to the heat exchanger mat (1) having a path separate from each other while rotating the heat exchanger according to the present invention having the above-described configuration, the heat with the indoor air is Conductively held on the mat, rotated by a predetermined angle and then delivered to the outdoor air, the outdoor air is introduced into the room with a certain percentage of the heat of the indoor air.
The electrothermal heat exchanger according to the present invention can be used in a heat recovery ventilator, as shown in Figures 2 to 4b. 2 to 4B, the ceiling type ventilator which can be used by being attached to the ceiling 55 is shown for convenience of description, but the heat exchanger type heat exchanger according to the present invention may also be used in the wall through type ventilator.
2, the heat exchanger is installed inside the housing 51, the cover (19, 21) is assembled on the upper and lower portions of the housing 51, the housing 51 and the cover (19, 21) An interior is provided with a flow path through which indoor air and outside air can communicate without being mixed with each other. 3A and 4B, the heat exchanger is installed between the upper plate 53a and the lower plate 53a provided in the center of the housing, and the motor 11 of the heat exchanger heat exchanger has a lower plate 53a and It is supported by the upper plate 53b, and the upper plate 53a and the lower plate 53b are fixed to the inner wall of the housing 51.
3A and 4B, an exhaust blower case 41 is provided between the upper cover 21 and the upper plate 53a in communication with the internal air outlet 33, and the exhaust blower case 41 is provided. An exhaust blower 45 is provided inside. 3B and 4B, an exhaust through hole 57 is formed in the upper plate 53a and the lower plate 53b under the exhaust blower 45, and the exhaust cover 45 rotates to cover the lower cover. The indoor air sucked from the pleated air intake port 49 formed at (19) is exhaust vent 57 of the lower plate 53b-> mat 1-> exhaust vent 57-> exhaust of the upper diaphragm 53a. The air flows into the exhaust duct 29 via the blower case 41-> air outlet 33. In this process, the heat of indoor air is transferred to the mat 1.
3A and 4A, the space between the upper cover 21 and the upper diaphragm 53a communicates with the outside air inlet 31, and on the right side of the installation position of the exhaust blower case 41 of the upper plate 53a. A plurality of intake through holes 55 are formed at points coincident with the semicircle of the mat 1 to form a path through which external air is delivered to the mat 1. Referring to FIGS. 3B and 4A, an intake air hole 55 is formed at a point of the lower plate 53b corresponding to the position of the intake air hole 55 of the upper plate 53a, and the hole of the lower plate 53b is formed. An intake blower case 39 is installed at a lower portion thereof, and the intake blower case 39 communicates with an outside air sterilization chamber 43 formed at the right side thereof. In the blower case 39 for intake air, an intake blower 47 for introducing external air into the room is installed. The upper part of the outside sterilization chamber 43 is sealed by the upper cover 21. The outside air inlet 61 is formed in the housing 51 to enter the room from the outside air sterilization chamber 43, and the titanium oxide net 15 is installed in the outside air inlet 61. Referring again to FIGS. 3A and 4A, when the intake blower 47 rotates, the outside air introduced into the intake duct 27 is an intake through-hole 55 of the outside air intake port 31-> upper plate 53a. -> The mat (1)-> the intake through-hole 55 of the lower diaphragm 53b-> the intake blower case 39-> the outside air sterilization chamber 43-> is introduced into the room via the outside air inlet 61 . In this process, the heat of the mat 1 is transferred to the outdoor air to recover the heat of the indoor air.
The heat recovery ventilator according to the present invention is characterized by not only adopting the heat transfer heat exchanger rotating by the reduction motor 11, but also providing an ultraviolet lamp 37 in the external air sterilization chamber 43, and an external air inlet. Titanium oxide net 15 is installed on 61 to finally sterilize before outdoor air is introduced into the room.
The ultraviolet lamp 37 includes a long wavelength ultraviolet (UVA) lamp (wavelength: 320-400 nm), a medium wavelength ultraviolet (UVB) lamp (wavelength: 280-320 nm) and a short wavelength ultraviolet lamp (UVC) (wavelength: 100-280 nm), but a long wavelength ultraviolet lamp is most suitable for activating a photocatalyst such as titanium oxide network 15. Short wavelength UV lamps may be used to directly sterilize and deodorize bacteria, viruses and fungi in outdoor air. The long wavelength ultraviolet rays of the ultraviolet lamps 37 are installed to be directly irradiated to the titanium oxide network 15.
3B and 4B, the ultraviolet lamp 37 may be installed in an exhaust path of indoor air, and a titanium oxide network 17 may be provided at the intake air inlet 49. The ultraviolet lamp 37 and the titanium oxide network 17 on the exhaust path are useful for reducing the contamination of the mat 1 by indoor air and sterilizing the mat 1, but are not necessary.
If the blower is provided in double as in the intake blower 39, the air volume can be freely adjusted and the variable displacement of the air volume is widened. The small size can vary from 180-480CHM and the medium size can range from 450-800CMH. If the ventilation system is installed indoors, the noise should be low. If it is necessary to lower the ambient noise level, operating at the minimum airflow can keep the noise from the ventilation below 50 decibels. If very strong ventilation is required regardless of noise, operating at full power can provide rapid ventilation.

According to the present invention having the above-described configuration, the air contact area of the mat where heat exchange takes place can be maximized, so that the heat exchange efficiency in the mat is high, the growth of bacteria in the mat can be suppressed as much as possible, Not only can the smell of indoor air be removed before it is re-introduced into the room, it is effective to introduce clean air into the room by removing almost all bacteria and odors in the external air finally added to the room.

Claims (3)

Reduction motor in which a motor shaft hole 9 is formed at the center and a circular wheel 7 capable of accommodating the mat 1 therein, and the shaft 13 is inserted into the motor shaft hole 9 of the wheel 7. It consists of (11), the heat transfer heat exchanged by the rotating wheel (7) in which the mat is accommodated therein by passing the indoor air to one side of the wheel (7) and the outdoor air to the other side of the wheel (7) In the phase, The mat 1 is composed of a fiber filament mixed with a charcoal powder and a heat transfer sheet 3 composed of a heat-retaining fiber filament having a diameter of 20 μm or less and a length of 3 to 10 cm and a polyester or nylon material. Electrothermal heat exchanger having an antibacterial and deodorizing function, characterized in that the antimicrobial deodorizing sheet (5) is alternately laminated. The method according to claim 1, The heat transfer type having the antibacterial and deodorizing function of the heat transfer sheet 3 and the antimicrobial deodorization sheet 5 may be in a ratio of stacked number of 1: 1, 2: 1, 1: 2, 2: 3 or 3: 2. heat transmitter. A heat exchanger type heat exchanger according to claim 1 or 2, which is rotated by a reduction motor; An exhaust blower (45) which sucks indoor air through the bet inlet (49) and forms an air flow in the exhaust direction on the mat of the heat exchanger; An intake blower 47 which forms an air stream separated from the air flow in the exhaust direction on the mat of the heat exchanger after inhaling the outdoor air, and injects the outdoor air into the room through an outside air inlet 61; ; An outside air sterilization chamber 43 formed between the outside air inlet 61 and the intake blower 47; An ultraviolet lamp (37) provided in the external air sterilization chamber (43); and a titanium oxide network (15) installed in the external air inlet (61); Heat recovery ventilation apparatus comprising a.

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