WO2005100873A1 - 熱交換ユニット - Google Patents
熱交換ユニット Download PDFInfo
- Publication number
- WO2005100873A1 WO2005100873A1 PCT/JP2005/005729 JP2005005729W WO2005100873A1 WO 2005100873 A1 WO2005100873 A1 WO 2005100873A1 JP 2005005729 W JP2005005729 W JP 2005005729W WO 2005100873 A1 WO2005100873 A1 WO 2005100873A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat exchange
- air
- exhaust
- exchange element
- unit
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F2012/007—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using a by-pass for bypassing the heat-exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Definitions
- the present invention relates to a heat exchange unit that efficiently recovers heat during ventilation.
- Patent Document 1 JP-A-11 248389
- An object of the present invention is to provide a heat exchange unit that can sufficiently clean the inside of a heat exchange element.
- the heat exchange unit according to the first invention includes an indoor air discharge path, an outdoor air supply path, a heat exchange element, a catalyst, and an active species generation unit.
- the “heat exchange unit” includes both the total heat exchange unit and the sensible heat exchange unit.
- the indoor air discharge passage is a passage for discharging room air as exhaust air to the outside of the room.
- the outdoor air supply passage is a passage for supplying outdoor air to the room as air supply.
- the heat exchange element is an element for exchanging at least sensible heat among sensible heat and latent heat between the exhaust gas and the supply air.
- the heat exchange element may be of a fixed type or a rotary type.
- the heat exchange element communicates with the indoor air discharge path and the outdoor air supply path.
- the catalyst is supported on a heat exchange element.
- the term “catalyst” refers to a photo-semiconductor catalyst (including apatite having a photocatalytic function), activated carbon, and the like.
- this catalyst May be supported on the heat exchange element by being blended into a resin or the like, or may be supported on the heat exchange element by coating. In addition, this catalyst decomposes, kills or inactivates suspended matters floating in the air when activated.
- the active species generation unit is arranged at least one of the upstream side of the heat exchange element in the supply flow direction and the upstream side of the exhaust flow direction. Then, the active species generator generates an active species.
- active species refers to a substance for activating a catalyst, and includes, for example, radical species such as fast electrons, ions, ozone, and hydroxyl radicals, and other excited molecules (excited oxygen). Molecule, excited nitrogen molecule, excited water molecule).
- the “active species generation unit” here is, for example, a glow discharger, a barrier discharger, a streamer discharger, and the like.
- the catalyst is supported on the heat exchange element.
- the active species generation unit is disposed at least one of the upstream side of the heat exchange element in the supply flow direction and the upstream side of the exhaust flow direction. Then, the active species generator generates an active species. For this reason, in this heat exchange unit, the active species can enter the deep part of the heat exchange element by riding at least one of the supply air and the exhaust gas, and activate the catalyst in the heat exchange element. . Therefore, in this heat exchange unit, the inside of the heat exchange element can be sufficiently cleaned.
- the heat exchange unit according to the second invention is the heat exchange unit according to the first invention, wherein the catalyst includes an optical semiconductor catalyst.
- photosemiconductor catalyst refers to a metal oxide represented by titanium oxide, strontium titanate, zinc oxide, tungsten oxide, iron oxide, and the like, and a carbon-based light represented by fullerene such as C.
- Nitride Nitride, oxynitride, and apatite having a photocatalytic function.
- the catalyst includes an optical semiconductor catalyst. It is known that a photosemiconductor catalyst is activated not only by ultraviolet rays but also by radicals. For this reason, in this heat exchange unit, a photosemiconductor catalyst widely known conventionally can be used instead of a special catalyst. Therefore, this heat exchange unit can be manufactured while suppressing the manufacturing cost.
- the heat exchange unit according to a third aspect is the heat exchange unit according to the second aspect, wherein the catalyst further includes apatite.
- apatite is defined by the chemical formula 8 (8 ⁇ ) 2 & (
- A represents various metal atoms such as Ca, Co, Ni, Cu, Al, La, Cr, Fe, and Mg.
- B represents an atom such as P and S.
- X is a hydroxyl group (_OH) or a halogen atom (eg, F, C1). ), Typical examples of which include hydroxyapatite, fluoroapatite, and cloapatite, and tricalcium phosphate and calcium hydrogen phosphate. Among these, calcium (Ca) (OH) (OH)
- Hydroxyapatite is highly adsorbable because it easily exchanges ions with both cations and anions, and is particularly excellent in the ability to adsorb organic substances such as proteins. It is known that potassium hydroxyapatite can inhibit or inhibit the growth of mold bacteria by strongly adsorbing them.
- the catalyst further contains apatite. Therefore, this heat exchange unit can positively adsorb and trap organic matter such as bacteria, viruses, or odor molecules in the heat exchange element. Then, the captured bacteria, virus, or odor molecules are decomposed, killed, or inactivated by an optical semiconductor catalyst present in the vicinity. Therefore, in this heat exchange unit, it is possible to positively purify the supply air, exhaust air and return air only by keeping the heat exchange element clean.
- the heat exchange unit according to the fourth invention is the heat exchange unit according to the third invention, wherein the apatite is apatite having a photocatalytic function.
- apatite having a photocatalytic function refers to, for example, apatite in which some calcium atoms of calcium hydroxyapatite are replaced with titanium atoms by a method such as ion exchange.
- apatite is an apatite having a photocatalytic function. For this reason, in this heat exchange unit, the supply air, exhaust air, and return air can be further positively purified.
- a heat exchange unit according to a fifth aspect is the heat exchange unit according to any one of the first to fourth aspects, wherein the catalyst includes activated carbon.
- the catalyst comprises activated carbon.
- Activated carbon is known to be activated by radical species. For this reason, in this heat exchange unit, not a special catalyst but activated carbon widely known from the past can be used. Therefore, this heat exchange unit can be manufactured with reduced manufacturing costs.
- the heat exchange unit according to the sixth invention is a heat exchange unit according to any one of the first invention to the fifth invention.
- the active species generation unit is disposed upstream of the heat exchange element in the supply air flow direction.
- the heat exchange unit further includes an air supply / distribution unit and a first operation switching unit.
- the air supply delivery unit delivers indoor air as air supply to the room.
- the “air supply / delivery unit” here is, for example, a blower.
- the first operation switching unit switches the operation state of the air supply delivery unit.
- the “first operation switching unit” is, for example, a control device that switches the rotation speed of the impeller of the blower.
- the first operation switching unit switches the operation state of the air supply delivery unit. Therefore, for example, during normal operation, the active species generation unit is not used, and after a certain period of time, the operation mode is switched to the clean operation mode, and the airflow of the blower is minimized to use the activation generation unit. Is supplied to the catalyst. Therefore, in this heat exchanger unit, the heat exchange element can be selectively and efficiently cleaned.
- a heat exchange unit according to a seventh invention is the heat exchange unit according to any one of the first invention to the sixth invention, wherein the active species generation unit is disposed upstream of the heat exchange element in the air supply flow direction. Is done.
- the heat exchange unit further includes an air supply circulation path and an air supply path switching unit.
- the supply air circulation path is a passage for allowing supply air to flow into the outdoor air supply path on the upstream side in the supply air flow direction of the heat exchange element after passing through the heat exchange element.
- the air supply path switching unit can switch between the first state and the second state. In the first state, outdoor air is supplied indoors as air supply. In the second state, the supply air flows into the supply air circulation path.
- the active species generation unit is disposed upstream of the heat exchange element in the supply air flow direction. Further, the air supply path switching unit can switch between the first state and the second state. For this reason, for example, if the active species generation unit is not used when the air supply path switching unit is in the first state, and the active species generation unit is used when the air supply path switching unit is in the second state, the active species generation unit can be used. Can be prevented from flowing into the room. Therefore, in the second state, a high concentration of active species can be supplied to the heat exchange element. As a result, in this heat exchange unit, the heat exchange element can be cleaned with high efficiency.
- a heat exchange unit is the heat exchange unit according to any one of the first invention to the seventh invention, wherein the active species generation unit is disposed upstream of the heat exchange element in the exhaust flow direction. Is done.
- the heat exchange unit further includes an exhaust circulation path and an exhaust path switching unit.
- the exhaust gas circulation path is a path for allowing exhaust gas to flow into the indoor air exhaust path on the upstream side in the exhaust gas flow direction of the heat exchange element after passing through the heat exchange element.
- the exhaust path switching unit can switch between the third state and the fourth state. In the third state, room air is exhausted outside as room air. Further, in the fourth state, the exhaust gas flows into the exhaust circulation path.
- the active species generation unit is disposed upstream of the heat exchange element in the exhaust gas flow direction.
- the exhaust path switching unit can switch between the third state and the fourth state. Therefore, for example, when the exhaust path switching unit is in the third state, the active species generation unit is not used, and when the exhaust path switching unit is in the fourth state, the active species generation unit is used. In the unit, the heat exchange element 12 can be efficiently cleaned.
- a heat exchange unit is the heat exchange unit according to any one of the first invention to the sixth invention, wherein the active species generation unit is disposed upstream of the heat exchange element in the air supply flow direction. Is done.
- the heat exchange unit further includes a bypass path and an air supply path switching unit.
- the bypass passage is a passage through which supply air flows into the indoor air discharge passage after passing through the heat exchange element.
- the air supply path switching unit can switch between the first state and the second state. In the first state, the supply air is supplied to the room. In the second state, the supply air flows into the bypass path.
- the active species generation unit is arranged upstream of the heat exchange element in the supply air flow direction. Further, the air supply path switching unit can switch between the first state and the second state. Therefore, for example, if the active species generation unit is not used when the air supply path switching unit is in the first state, and the active species generation unit is used when the air supply path switching unit is in the second state, the active species generation unit Can be prevented from flowing into the room. Therefore, in the second state, a high concentration of active species can be supplied to the heat exchange element. As a result, in this heat exchange unit, the heat exchange element can be cleaned with high efficiency.
- a heat exchange unit is the heat exchange unit according to the ninth aspect, wherein the active species generation unit is further disposed upstream of the heat exchange element in the exhaust gas flow direction.
- the supply air that has flowed into the indoor air exhaust passage is located upstream in the exhaust flow direction. It is discharged out of the room via the activated species generating unit.
- the active species generation unit is further arranged upstream of the heat exchange element in the exhaust gas flow direction.
- the supply air flowing into the indoor air discharge passage is discharged outside the room via the active species generation unit arranged on the upstream side in the exhaust flow direction. For this reason, in this heat exchange unit, the heat exchange element can be more efficiently cleaned.
- a heat exchange unit according to an eleventh invention is the heat exchange unit according to any one of the first invention to the sixth invention, wherein the active species generation unit is disposed upstream of the heat exchange element in the exhaust flow direction.
- the heat exchange unit further includes an exhaust delivery unit and a second operation switching unit.
- the exhaust delivery unit delivers indoor air to the outside as exhaust air.
- the second operation switching unit switches the operation state of the exhaust delivery unit.
- the second operation switching unit switches the operation state of the exhaust delivery unit. Therefore, for example, during normal operation, the active species generation unit is not used, and after a certain period of time, the operation mode is switched to the clean operation mode, and the airflow of the blower is minimized to use the activation generation unit. Is supplied to the catalyst. Therefore, in this heat exchanger unit, the heat exchange element can be selectively and efficiently cleaned.
- the inside of the heat exchange element can be sufficiently cleaned.
- the heat exchange unit according to the second invention can be manufactured with reduced manufacturing costs.
- it is possible to positively purify the supply air, the exhaust air, and the return air only by keeping the heat exchange element clean.
- the air supply, exhaust, and return air can be further positively purified.
- the heat exchange unit according to the fifth invention can be manufactured with reduced manufacturing costs.
- the heat exchange element can be selectively and efficiently cleaned.
- the heat exchange element can be cleaned with high efficiency.
- the heat exchange element 12 can be efficiently cleaned.
- the heat exchange element can be efficiently purified.
- the heat exchange element can be more efficiently cleaned.
- the heat exchange element can be selectively and efficiently purified.
- FIG. 1 is a perspective view showing the internal structure of a total heat exchange unit according to the present invention.
- FIG. 2 is a top view showing the internal structure of the total heat exchange unit according to the present invention.
- FIG. 3 is a side view showing the internal structure of the total heat exchange unit according to the present invention.
- FIG. 4 is an exploded perspective view showing the internal structure of the total heat exchange unit according to the present invention.
- FIG. 5 is a perspective view of a partition plate.
- FIG. 6 is a perspective view of a partition plate.
- FIG. 7 is a perspective view showing the structure of a heat exchange element.
- FIG. 8 is an external perspective view of a streamer discharger.
- FIG. 9 is a perspective view showing an internal structure of a heat exchange unit according to a modification (B).
- FIG. 10 is a perspective view showing the structure of a heat exchange element according to a modification (B).
- FIG. 11 is a top view (1) showing the structure of a heat exchange element according to a modification (K).
- FIG. 12 is a top view (2) showing a structure of a heat exchange element according to a modification (K).
- FIG. 13 (a) Top view (1) showing the structure of the heat exchange element according to the modification (L), (b) Modification (
- FIG. 14 is a top view (1) showing a structure of a heat exchange element according to a modification (M).
- FIG. 15 is a top view (2) showing the structure of the heat exchange element according to Modification (M).
- Air supply passage (outdoor air supply passage) 210, 211 fan (air delivery section)
- FIG. 1 is a perspective view showing the internal structure of a total heat exchange unit according to an embodiment of the present invention
- FIG. 2 is a top view
- FIG. 3 is a side view
- FIG. 4 is an exploded perspective view.
- the total heat exchange unit 100 includes a heat exchange element 12 between an outdoor air supply SA (solid white arrow) and an indoor exhaust air EA (hatched arrow). It is a device for ventilating while exchanging heat through the.
- SA solid white arrow
- EA hatchched arrow
- the total heat exchange unit 100 mainly includes a casing 1, a heat exchange element 12, an air filter 12b, fans 10, 11, and a damper 34. , And electrical components box EB.
- the casing 1 includes a box 2 and a lid 3 that covers the upper surface of the box 2.
- the casing 1 includes a heat exchange element room 21, an exhaust fan motor housing room 41, an exhaust fan housing room 22, an air supply fan motor housing room 43, An air supply fan chamber 24, an air communication chamber 45, an exhaust communication chamber 46, an outdoor suction chamber 26, an indoor suction chamber 27, and a bypass chamber 31 are provided.
- a heat exchange element room 21 an exhaust fan motor housing room 41, an exhaust fan housing room 22, an air supply fan motor housing room 43,
- An air supply fan chamber 24, an air communication chamber 45, an exhaust communication chamber 46, an outdoor suction chamber 26, an indoor suction chamber 27, and a bypass chamber 31 are provided.
- the heat exchange element chamber 21 is a rectangular parallelepiped space and accommodates the heat exchange element 12, as shown in FIGS.
- the heat exchange element chamber 21 is formed by being partitioned by the bottom plate of the box 2, the partition plates 16 ⁇ / b> A to 16 ⁇ / b> E (see FIGS. 1, 5, and 6), the lid 3, and the like.
- Guide portions Gl, G2, G3 are attached to the bottom plate of the box 2, the partition plates 16A to 16E, and the lid 3, respectively.
- the guide portion G1 attached to the bottom plate of the box 2 has a first guide portion G11 and a second guide portion G12.
- the first guide portion G11 guides the lower ridgeline of the heat exchange element 12 when the heat exchange element 12 is inserted and removed.
- the second guide portions G12 are paired with the first guide portion G11 interposed therebetween, and guide the edges of the pair of air filters 12b, respectively.
- the guide portion G2 attached to the partition plates 16A to 16E has a first guide portion G21 and a second guide portion G22.
- the first guide portion G21 guides the side ridgeline of the heat exchange element 12 when the heat exchange element 12 is removed.
- the second guide portion G22 guides the edge of the air filter 12b.
- the guide portion G3 attached to the lid 3 guides the upper ridgeline of the heat exchange element 12 when inserting and removing the heat exchange element 12.
- FIGS. 1 and 3 the space indicated by FIG. 17 is the first space
- the space indicated by FIG. 18 is the second space
- the space indicated by FIG. 19 is the third space
- the exhaust fan housing chamber 22 houses the exhaust fan 10 as shown in FIGS. As shown in FIG. 1, the exhaust fan housing chamber 22 communicates with the exhaust fan motor housing chamber 41 through an opening 42 formed in the partition plate 16B. Further, as shown in FIG. 1, the exhaust fan housing chamber 22 has an outdoor air outlet 7 for exhaust on a side wall.
- the exhaust fan motor housing chamber 41 houses the exhaust fan motor 10M, as shown in FIGS. Further, as shown in FIG. 1, the exhaust fan motor housing chamber 41 communicates with the first space 17 via an opening 23 partitioned by the lid 3 and one ridge line of the heat exchange element 12.
- the air supply fan accommodating chamber 24 accommodates the air supply fan 11, as shown in FIGS. As shown in FIG. 1, the air supply fan housing chamber 24 communicates with the air supply fan motor housing chamber 43 through an opening 44 formed in the partition plate 16D. As shown in FIG. 1, the air supply fan housing chamber 24 has an air supply indoor side outlet 6 on a side wall.
- the air supply fan motor housing chamber 43 houses the air supply fan motor 11M, as shown in FIGS.
- the air supply fan motor housing chamber 43 communicates with the second space 18 via an opening 25 partitioned by the lid 3 and one ridge line of the heat exchange element 12.
- the outdoor-side suction chamber 26 has an outdoor-side suction port 5 for air supply on a side wall.
- the outdoor suction chamber 26 communicates with the air supply communication chamber 45 through the opening 29 of the partition plate 16C as shown in FIGS.
- the indoor-side suction chamber 27 has an indoor-side suction port 4 for exhaust on a side wall. As shown in FIG. 1, the indoor-side suction chamber 27 communicates with the exhaust communication chamber 46 through the opening 30 of the partition plate 16E.
- the air supply communication chamber 45 is partitioned by a partition plate 16F, and is located below the exhaust fan motor storage chamber 41.
- the air supply communication chamber 45 communicates with the third space 19 as shown in FIG.
- the exhaust communication chamber 46 is partitioned by a partition plate 16G and houses the fan motor for air supply. Located below room 43. The exhaust communication chamber 46 communicates with the fourth space 20, as shown in FIG.
- the bypass chamber 31 is located on the side opposite to the extraction direction of the heat exchange element chamber 21.
- the bypass chamber 31 communicates with the first space 17 via the opening 32.
- the bypass chamber 31 communicates with the indoor suction chamber 27 via the opening 33.
- the exhaust fan storage chamber 22 and the indoor-side suction chamber 27 communicate with each other through the exhaust fan motor storage chamber 41, the first space 17, and the bypass chamber 31.
- the heat exchange element 12 has a substantially rectangular parallelepiped shape as shown in FIGS. 1 and 4, and is provided at the intersection of the exhaust passage 8 and the air supply passage 9. As shown in FIG. 7, the heat exchange element 12 alternates between pleated special kraft paper (hereinafter referred to as spacer paper) 122 and flat membrane-shaped special kraft paper (hereinafter referred to as partition paper) 121. It has a structure that is stacked while changing the direction. Since the heat exchange element 12 has such a structure, in the heat exchange element 12, the flow path of the exhaust EA and the flow path of the supply air SA are alternately arranged for each stage. In the heat exchange element 12, the sensible heat and the latent heat of the air supply SA and the exhaust air EA are exchanged through the partition paper 121.
- spacer paper pleated special kraft paper
- partition paper flat membrane-shaped special kraft paper
- the spacer paper 122 and the partition paper 121 carry titanium apatite.
- This titanium apatite is an apatite in which some of the calcium atoms of calcium hydroxyapatite have been replaced with titanium atoms by a method such as ion exchange, and has excellent adsorption performance for organic substances (especially bacteria and viruses). It also exhibits properties as a photo-semiconductor catalyst, and when irradiated or supplied with high-level, high-level energy (eg, ultraviolet light) or active species at the same level of energy, an anatase-type titanium dioxide, a typical photo-semiconductor catalyst, It shows better filth decomposition performance.
- high-level, high-level energy eg, ultraviolet light
- a handle 12a for taking out is provided on the end face of the heat exchange element 12, and when the lid 14 is removed as shown in FIG. 4, it is opened to the maintenance surface M of the casing 1. From the opening 13 for removal, it can be removed in the longitudinal direction along its long side. (3) Air filter
- the air filter 12b is attached to the heat exchange element 12 so as to cover the surface of the heat exchange element 12 that contacts the third space 19 and the surface that contacts the fourth space 20.
- the air filter 12b is a non-woven fabric made of polytetrafluoroethylene fiber.
- the air filter 12b is a filter for mainly collecting relatively large dust, and cannot capture minute biological particles such as bacteria and viruses.
- the streamer discharger 15 is provided in each of the third space 19 and the fourth space 20, and includes radicals such as fast electrons, ions, ozone, and hydroxyl radicals, and other excited molecules (excited oxygen molecules, excited nitrogen molecules, excited nitrogen molecules, By supplying active species such as water molecules) to the inside of the heat exchange element 12, the photocatalytic function of the titanium apatite carried inside the heat exchange element 12 is activated.
- the streamer discharger 15 is composed of a discharge electrode 15a and a counter electrode 15b.
- the discharge electrode 15a includes an electrode rod 151 and a plurality of needle electrodes 152.
- the needle electrode 152 is fixed so as to be substantially orthogonal to the electrode rod 151.
- the opposing electrode 15b is a plate-shaped electrode and has a plurality of openings through which air passes in a direction perpendicular to the plane of the electrode.
- the electrode rod 151 of the discharge electrode 15a and the counter electrode 15b are arranged substantially in parallel.
- the needle electrode 152 of the discharge electrode 15a is substantially perpendicular to the counter electrode 15b.
- the discharge electrode 15a and the counter electrode 15b are connected to a DC, AC, or pulse high-voltage power supply (not shown).
- a discharge voltage is applied to the discharge electrode 15a and the counter electrode 15b, a streamer discharge occurs between the needle electrode 152 of the discharge electrode 15a and the counter electrode.
- streamer discharge occurs, low-temperature plasma is generated in the discharge field.
- the low-temperature plasma generates radicals such as high-speed electrons, ions, ozone, and hydroxy radicals, and other excited molecules (excited oxygen molecules, excited nitrogen molecules, and excited water molecules).
- these active species are supplied to the inside of the heat exchange element 12 through the opening of the counter electrode 15b in the air flow.
- the streamer discharger 15 is energized only in a heat exchange element cleaning mode described later.
- the exhaust fan 10 and the air supply fan 11 are each composed of a sirocco fan (rotor), and have a spiral fan casing made of a foamed resin (for example, styrene foam). (Not shown).
- the rotation axis L of each of the fans 10 and 11 is parallel to the withdrawal direction K of the heat exchange element 12.
- the dambar 34 is arranged in the indoor suction chamber 27.
- the damper 34 is rotated by, for example, an electric motor (not shown) or the like to open one or the other of the openings 30 and 33 and close the other.
- the electrical component box EB is arranged in a portion Ml of the maintenance surface M facing the exhaust fan 10.
- the electrical component box EB houses a control board (not shown) and the like as electrical components.
- the control board is communicatively connected to a wired remote controller (not shown), and controls the operation of the fans 10, 11 and the damper 34 based on signals transmitted from the wired remote controller.
- the total heat exchange unit 100 is provided with three operation modes: a total heat exchange ventilation mode, a normal ventilation mode, and a heat exchange element cleaning mode. Hereinafter, each operation mode will be described in detail.
- the opening 30 is opened by the damper. At this time, as described above, the opening 33 is closed. Then, when the fans 10 and 11 are operated in this state, the room air is sucked into the room-side suction chamber 27 from the room-side suction port 4 via the dart, and the opening 30 ⁇ the exhaust communication chamber 46 ⁇ the fourth side.
- Air filter 12b Heat exchange element 12 ⁇ First space 17 ⁇ Opening 23 ⁇ Exhaust fan motor housing room 41 ⁇ Exhaust passage 8 leading to exhaust fan housing room 22 and blown out from outdoor outlet 7
- the air is discharged outside through the duct and the outdoor air is sucked into the outdoor suction chamber 26 from the outdoor suction port 5 through the duct, and the air supply communication chamber 45 ⁇ the third space 19 ⁇ the air filter 12b ⁇ Heat exchange element 12 ⁇ second space 18 ⁇ opening 2 5 ⁇ Air supply fan motor storage chamber 43 ⁇ Opening 44 ⁇ Air supply fan storage chamber 24.
- the air flows through the air supply passage 9 and is blown out from the indoor side outlet 6 to be supplied to the room through the duct.
- Air conditioning is not required during spring and autumn, and heat exchange is not performed during the interim period, and normal ventilation is performed.
- the opening 33 is opened by the damper 34 when normal ventilation is performed. At this time, as described above, the opening 30 is closed.
- the fans 10 and 11 are operated in this state, the room air is sucked into the room-side suction chamber 27 from the room-side suction port 4 through the duct, and the opening 33 ⁇ the bypass chamber 31 ⁇ the opening 32 ⁇ 1 Space 17 ⁇ Opening 23 ⁇
- Exhaust fan motor accommodating room 41 ⁇ Bypass to exhaust fan accommodating room 22 Passes through the ventilation passage, is blown out from outdoor outlet 7, and is discharged outside through the duct at the same time.
- the number of rotations of the fans 10 and 11 is controlled so as to minimize the air flow, and the streamer discharger 15 is energized.
- total heat exchange unit 100 titanium apatite is carried on heat exchange element 12. Further, the streamer dischargers 15 are arranged on both sides of the heat exchange element 12 on the upstream side in the supply flow direction and on the upstream side in the exhaust flow direction. Then, when the heat exchange element cleaning mode is selected, the amount of air blown by the fans 10 and 11 is suppressed as much as possible, and the streamer discharger 15 generates active species to supply to the titanium apatite inside the heat exchange element 12. . For this reason, in this total heat exchange unit 100, the activated species can enter deep into the heat exchange element 12 and activate the titanium apatite in the heat exchange element 12. Wear.
- the energy level of the active species is higher than that of ultraviolet light, the photocatalytic reaction rate of titanium apatite can be accelerated.
- ozone has a strong bactericidal effect. Therefore, in the total heat exchange unit 100, the inside of the heat exchange element 12 can be sufficiently cleaned.
- the streamer discharger 15 is energized when the heat exchange element cleaning mode is selected. Therefore, in the total heat exchange unit 100, a high concentration of active species can be supplied to the heat exchange element 12. Therefore, in the total heat exchange unit 100, the heat exchange element 12 can be selectively and efficiently cleaned.
- the heat exchange element 12 is the total heat exchange type heat exchange element 12 composed of the spacer paper 122 and the partition paper 121 having moisture permeability.
- the heat exchange element is a sensible heat exchange type heat exchange element (a so-called heat pipe type heat exchange element) composed of a spacer plate and a partition plate having no moisture permeability. Good.
- the heat exchange element was a fixed heat exchange element 12
- the force heat exchange element was a rotary heat exchange element 220 as shown in FIG. You can.
- the rotary heat exchange element 220 mainly includes a casing 221, a rotor 222, a gear motor 223, and a partition 224.
- the casing 221 houses the rotor 222 and the gear motor 223.
- a rotor 222 is rotatably fixed to the casing 221.
- the rotor 222 is rotationally driven by a gear motor 223 via a belt.
- the rotor 222 has a honeycomb structure made of an aluminum plate. In this case, titanium apatite is coated on this aluminum plate.
- the rotary heat exchange element When the rotary heat exchange element is used for total heat exchange, lithium chloride or silica-based compound is coated on the aluminum plate as a moisture absorbent. However, titanium apatite may be coated by mixing with these compounds.
- the partition plate 224 partitions the rotor 222 in the vertical direction. In this manner, in this rotary heat exchange element 220, the exhaust is passed through the upper half of the rotor 222 and the supply air is passed through the lower half. Then, in the heat exchange element of the total heat exchange type, for example, in winter, the temperature and the moisture content of the upper half of the rotor 222 itself increase due to the exhaust having the temperature and humidity of the exhaust higher than the outdoor air. In this state, when the rotor 222 rotates to move the portion that was in the upper half region to the lower half region, the portion contacts the air supply and releases the temperature and humidity to the air supply.
- FIG. 9 shows a heat exchange unit 200 equipped with such a rotary heat exchange element 220.
- the heat exchange unit 200 mainly includes a casing 201, a heat exchange element 220, an air filter 220b, a streamer discharger (not shown), and fans 210 and 211.
- the heat exchange element 220 is arranged near the center of the casing 201 in the longitudinal direction so that the rotation axis direction of the rotor 222 coincides with the longitudinal direction.
- two rotors 222 are arranged in a direction orthogonal to the longitudinal direction.
- An air filter 220b is disposed upstream of the rotor 22 in the exhaust flow direction and upstream of the supply air flow.
- the air filter 220b disposed on the upstream side of the rotor 222 in the exhaust flow direction covers the upper half of the rotor 222.
- the air filter 220b disposed on the upstream side of the rotor 222 in the air supply flow direction covers the lower half of the rotor 222.
- the air filter 220b is the same as the air filter 12b according to the above embodiment.
- the catalytic function of titanium apatite is activated by a streamer discharger (not shown) arranged near the air filter 220b.
- the exhaust fan 210 is provided outside the heat exchange unit 200 and is driven by the exhaust fan motor 210M.
- the air supply fan 211 is provided on the indoor side of the heat exchange unit 200 and is driven by the air supply fan 211M.
- the room air is sucked into the room-side suction port 254 via the duct, and reaches the air finlet 220 b ⁇ the heat exchange element 220 ⁇ the exhaust fan 210. Passes through the exhaust passage and is blown out from the outdoor outlet 257 At the same time as the air is discharged to the outside through the air, the outdoor air is sucked into the outdoor-side suction port 255 through the duct, and enters the air passage 220b ⁇ the heat exchange element 220 ⁇ the air supply fan 211. As a result, the air is blown out from the indoor side outlet 256 and supplied to the room through the duct.
- the streamer discharger 15 is energized when the heat exchange element cleaning mode is selected, but the streamer discharger 15 is always energized. I don't care.
- the streamer dischargers 15 are arranged on both sides of the heat exchange element 12 on the upstream side in the supply flow direction or on the upstream side in the exhaust flow direction. Even if it is arranged on either the upstream side of the heat exchange element 12 in the supply air flow direction or the upstream side of the exhaust air flow direction, no force is applied.
- the rotation speeds of the fans 10 and 11 were controlled so as to minimize the air flow, but the fans 10 and 11 were stopped. It doesn't matter if it is controlled to do so.
- the heat exchange element 12 carries titanium apatite having a photocatalytic function, but is typically represented by titanium dioxide, strontium titanate, zinc oxide, tungsten oxide, iron oxide, and the like.
- the heat exchange element 12 may carry apatite such as hydroxyapatite, fluoroapatite, and cloapatite, and tricalcium phosphate and calcium hydrogen phosphate.
- titanium apatite having a photocatalytic function is carried on the heat exchange element 12, but instead, activated carbon is replaced with a heat exchange element. May be carried on the gantry 12.
- the titanium apatite was supported on the spacer paper 122 and the partition paper 121.
- the titanium apatite was supported on the fibers constituting the spacer paper 122 and the partition paper 121. It may be.
- the fibers may be coated with titanium apatite.
- titanium apatite may be coated on spacer paper 122 and partition paper 121.
- a heat exchange element may be formed from titanium apatite itself.
- a streamer discharger was employed to activate the photocatalytic reaction of titanium apatite, but instead of this, a glow discharger or a rear discharger was used. You may adopt it.
- the force that titanium apatite was carried on the spacer paper 122 and the partition paper 121 In addition to this, even if the titanium filter was carried on the air filter 12b, the force was I'm sorry. Further, even if titanium apatite is carried on a member constituting a path from the streamer discharger 15 to the heat exchange element 12, no force is applied.
- the mounting pipes 304, 305, 306, and 307 (hereinafter referred to as mounting pipes connected to the indoor suction port 4) as shown in FIG.
- the pipe 304 is connected to the indoor suction pipe
- the mounting pipe 305 connected to the outdoor suction port 5 is set to the outdoor suction pipe
- the mounting pipe 306 connected to the indoor outlet 6 is set to the indoor blow pipe.
- the installation pipe 307 connected to the outdoor outlet 7 is referred to as an outdoor outlet pipe) and is connected to the outlets 6 and 7 and the inlets 4 and 5 of the total heat exchange unit 100 in advance.
- the inner outlet pipe 306 and the bypass pipe 301 may be connected to each other.
- the first damper 311 it is necessary to provide the first damper 311 at the connection point between the indoor side outlet pipe 306 and the bypass pipe 301.
- a state in which the supply air SA is delivered indoors by the first damper 311 (hereinafter referred to as a first state) (the first damper 311 is indicated by a solid line).
- a state in which the supply air SA flows into the indoor suction pipe 304 via the bypass pipe 301 hereinafter, referred to as a second state
- a state in which the damper 311 is indicated by a broken line a state in which the damper 311 is indicated by a broken line.
- the Species can be prevented from flowing into the room. Therefore, in the second state, a high concentration of active species can be supplied to the heat exchange element 12. As a result, in such a total heat exchange unit, the heat exchange element 12 can be highly efficiently cleaned.
- the mounting rooster pipes 304, 305, 306, 307 and the nipples rooster pipe 301 can be moved even when housed in a casing. Further, in this total heat exchange unit, the rotation speeds of the fans 10 and 11 are controlled such that the amount of air blow is minimized as in the heat exchange element cleaning mode according to the previous embodiment. There is no particular need.
- a second damper 312 may be further provided at a connection point between the indoor side suction pipe 304 and the bypass pipe 301 (see FIG. 12).
- the second damper 312 is controlled in conjunction with the first damper 311, and when the first damper 311 is in the first state, the second damper 312 is in a state of distributing the exhaust EA to the outside of the room (solid line state). )become.
- the first damper 311 is in the second state
- the second damper 312 is in a state of blocking the flow of the exhaust EA from the room (the state shown by the broken line). For this reason, in this total heat exchange unit, it is possible to prevent the room from becoming negative pressure.
- the mounting pipe 324 connected to the suction port 4 is for the indoor suction pipe
- the mounting pipe 325 connected to the outdoor suction port 5 is for the outdoor suction pipe and the mounting pipe connected to the indoor outlet 6.
- the piping 326 is connected to the indoor outlet pipe and the mounting pipe 327 connected to the outdoor outlet 7 is called the outdoor outlet pipe).
- the outlets 6 and 7 and the inlets 4 and 5 of the total heat exchange unit 100 are connected in advance.
- the outdoor-side outlet pipe 327 and the indoor-side outlet pipe 326 may be connected by a bypass pipe 321.
- a state in which the supply air SA is delivered to the room by the first damper 331 (hereinafter, referred to as a first state) (a state in which the first damper 331 is indicated by a solid line) and a state in which the supply air SA is passed through the no-pass pipe 321 to the outside of the room.
- the state in which the gas flows into the outlet pipe 327 (hereinafter, referred to as a second state) (the state in which the damper 311 is indicated by a broken line) can be switched.
- the streamer discharger 15 when the first damper 311 is in the first state, the energization to the streamer discharger 15 is cut off, and when the first damper 311 is in the second state, the streamer discharger 15 is energized.
- the active species can be prevented from flowing into the room. Therefore, in the second state, a high concentration of active species can be supplied to the heat exchange element 12.
- the heat exchange element 12 can be cleaned with high efficiency. Note that, in this case, the streamer discharger 15 located on the side of the heat exchange element 12 on the side of improving the flow of exhaust gas does not exert force even if it is removed.
- the mounting pipes 324, 325, 326, 327 and the bypass pipe 321 may be housed in a casing. Further, in this total heat exchange unit, it is necessary to control the rotation speeds of the fans 10 and 11 so as to minimize the air flow as in the heat exchange element cleaning mode according to the previous embodiment. There is no particular.
- Mounting pipes 344, 345, 346, 347 as shown in FIG. 14 (hereinafter referred to as mounting pipes connected to indoor side suction port 4)
- the pipe 344 is connected to the indoor suction pipe
- the mounting pipe 345 connected to the outdoor suction port 5 is the outdoor suction pipe
- the mounting pipe 346 connected to the indoor outlet 6 is set to the indoor blow pipe.
- the installation pipe 347 connected to the outdoor air outlet 7 is called the outdoor air outlet pipe) beforehand connected to the air outlets 6 and 7 and the air inlets 4 and 5 of the total heat exchange unit 100.
- the outer outlet pipe 347 may be connected to the first bypass pipe 341, and the outdoor inlet pipe 345 and the indoor outlet pipe 346 may be connected to the second bypass pipe 342.
- a first damper 351 is provided at a connection point between the outdoor-side discharge pipe 347 and the first bypass pipe 341 and a second damper 352 is provided at a connection point between the indoor-side discharge pipe 346 and the second bypass pipe 342.
- the first damper 351 discharges the exhaust EA to the outside of the room (hereinafter, referred to as a first state) (the first damper 351 is a solid line) and the exhaust EA is connected to a bypass pipe.
- a state in which the exhaust EA is circulated (hereinafter referred to as a second state) (a state in which the damper 311 is indicated by a broken line).
- a state in which air supply SA is supplied to the room by the second damper 352 (hereinafter, referred to as a third state) (a state in which the second damper 352 is a solid line) and an air supply SA are By flowing the air into the outdoor-side suction pipe 345 through the no-pass pipe 342, it is possible to switch between a state in which the supply air SA is circulated (hereinafter, referred to as a fourth state) (a state in which the second damper 352 is a broken line).
- the energization to the streamer discharger 15 is cut off, and when the second damper 352 is in the second state, the streamer discharger 15 is energized. It can prevent active species from flowing into the room. Therefore, in the second state, it becomes possible to supply a high concentration of active species to the heat exchange element 12. Also, for example, when the first damper 351 is in the first state, the energization to the streamer discharger 15 is cut off, and when the first damper 351 is in the second state, the energization to the streamer discharger 15 is efficiently performed. The heat exchange element 12 can be cleaned.
- the mounting pipes 344, 345, 346, 347 and the bypass pipes 351, 352 may be accommodated in a casing. Further, in this total heat exchange unit, it is necessary to control the rotation speeds of the fans 10 and 11 so as to minimize the air flow as in the heat exchange element cleaning mode according to the previous embodiment. There is no particular.
- the heat exchange unit according to the present invention can sufficiently clean the inside of the heat exchange element, and can be applied to applications such as an air conditioner and an air purifier.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Central Air Conditioning (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004120844A JP3722144B2 (ja) | 2004-04-15 | 2004-04-15 | 熱交換ユニット |
JP2004-120844 | 2004-04-15 |
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WO2005100873A1 true WO2005100873A1 (ja) | 2005-10-27 |
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PCT/JP2005/005729 WO2005100873A1 (ja) | 2004-04-15 | 2005-03-28 | 熱交換ユニット |
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WO (1) | WO2005100873A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2016194259A1 (ja) * | 2015-05-29 | 2017-08-24 | 三菱電機株式会社 | 熱交換型換気装置 |
WO2021145308A1 (ja) * | 2020-01-17 | 2021-07-22 | ダイキン工業株式会社 | 空気調和システム |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4739078B2 (ja) * | 2006-03-29 | 2011-08-03 | 富士通株式会社 | 脱臭乾燥機 |
JP2011163650A (ja) | 2010-02-09 | 2011-08-25 | Mitsubishi Electric Corp | 熱交換素子及びその製造方法並びに熱交換換気装置 |
AT13643U1 (de) * | 2012-07-02 | 2014-05-15 | Pichler Ges M B H J | Verfahren und Vorrichtung zum Belüften von Räumen |
JP2020201015A (ja) * | 2019-06-12 | 2020-12-17 | 三菱電機株式会社 | 排気用ダクト分岐継ぎ手 |
Citations (4)
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JPH11248389A (ja) * | 1998-02-26 | 1999-09-14 | Sharp Corp | 全熱交換素子及び全熱交換器 |
JP2002346334A (ja) * | 2001-05-22 | 2002-12-03 | Daikin Ind Ltd | プラズマ式ガス浄化装置 |
JP2003038619A (ja) * | 2001-07-26 | 2003-02-12 | Cardinal House:Kk | 清浄化用組成物、清浄化用物品及び清浄化用装置 |
JP2004075445A (ja) * | 2002-08-15 | 2004-03-11 | Masahiro Yoshimura | 酸化チタン・アパタイト複合体及びその製造方法 |
-
2004
- 2004-04-15 JP JP2004120844A patent/JP3722144B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-28 WO PCT/JP2005/005729 patent/WO2005100873A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11248389A (ja) * | 1998-02-26 | 1999-09-14 | Sharp Corp | 全熱交換素子及び全熱交換器 |
JP2002346334A (ja) * | 2001-05-22 | 2002-12-03 | Daikin Ind Ltd | プラズマ式ガス浄化装置 |
JP2003038619A (ja) * | 2001-07-26 | 2003-02-12 | Cardinal House:Kk | 清浄化用組成物、清浄化用物品及び清浄化用装置 |
JP2004075445A (ja) * | 2002-08-15 | 2004-03-11 | Masahiro Yoshimura | 酸化チタン・アパタイト複合体及びその製造方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2016194259A1 (ja) * | 2015-05-29 | 2017-08-24 | 三菱電機株式会社 | 熱交換型換気装置 |
EP3306211A4 (en) * | 2015-05-29 | 2019-03-13 | Mitsubishi Electric Corporation | VENTILATION DEVICE OF HEAT EXCHANGE TYPE |
WO2021145308A1 (ja) * | 2020-01-17 | 2021-07-22 | ダイキン工業株式会社 | 空気調和システム |
JP2021113631A (ja) * | 2020-01-17 | 2021-08-05 | ダイキン工業株式会社 | 空気調和システム |
JP7007602B2 (ja) | 2020-01-17 | 2022-01-24 | ダイキン工業株式会社 | 空気調和システム |
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Publication number | Publication date |
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JP2005300113A (ja) | 2005-10-27 |
JP3722144B2 (ja) | 2005-11-30 |
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