CN107152744B - Air interchanger - Google Patents
Air interchanger Download PDFInfo
- Publication number
- CN107152744B CN107152744B CN201710123602.XA CN201710123602A CN107152744B CN 107152744 B CN107152744 B CN 107152744B CN 201710123602 A CN201710123602 A CN 201710123602A CN 107152744 B CN107152744 B CN 107152744B
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- CN
- China
- Prior art keywords
- air
- chamber
- indoor
- damper
- air supply
- Prior art date
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- 239000003570 air Substances 0.000 title claims abstract description 366
- 238000009833 condensation Methods 0.000 claims abstract description 51
- 230000005494 condensation Effects 0.000 claims abstract description 51
- 238000009423 ventilation Methods 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000203 mixtures Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 238000004887 air purification Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 2
- 239000007789 gases Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 10
- 238000003915 air pollution Methods 0.000 description 4
- 238000010586 diagrams Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003134 recirculating Effects 0.000 description 2
- 239000000126 substances Substances 0.000 description 2
- 230000001580 bacterial Effects 0.000 description 1
- 230000001276 controlling effects Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000001877 deodorizing Effects 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 239000002699 waste materials Substances 0.000 description 1
Classifications
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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
- F24F7/00—Ventilation, e.g. by means of wall-ducts or systems using window or roof apertures
- F24F7/007—Ventilation, e.g. by means of wall-ducts or systems using window or roof apertures with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
Abstract
Description
Technical Field
The invention relates to a ventilation device, in particular to a ventilation device which comprises: the air introduced from the outside to the inside of the room and the indoor air are mixed and recirculated, so that dew condensation is prevented from occurring inside and outside the apparatus, a ventilation amount required in the inside of the room can be satisfied, energy efficiency can be maximized, and particularly, pollution caused by the outside can be prevented by maintaining the inside of the room at a positive pressure.
Background
In general, a home, an office, or the like is provided with a cooling/heating apparatus for cooling/heating an interior based on a change of seasons, and such a cooling/heating apparatus includes an air conditioner, a heating furnace, or the like for cooling/heating air.
In order to improve cooling and heating efficiency, a room such as a general home or office in which the cooling and heating apparatus as described above is installed is kept in a closed state, and since a degree of air pollution increases after a predetermined time has elapsed in the closed indoor space, foreign matter such as bad smell or dust is generated in the room. Therefore, in order to remove such malodor or dust, the indoor air is ventilated every predetermined time, and at this time, a ventilating device for maintaining the indoor temperature and more rapidly discharging polluted indoor air to the outside of the room, and supplying fresh air to the inside of the room is used.
Generally, in the case where the ventilator as described above is installed in a space where floors or the outer wall of a building are insulated, dew condensation can be minimized from occurring inside the ventilator, but in the case where the ventilator is installed in a space where the outer wall of a building is not insulated, the space where the ventilator is installed becomes a condition almost similar to that of an outdoor space, and dew condensation may occur inside the ventilator.
That is, in the case where the temperature of outdoor air is low like in winter, the temperature of the space where the ventilator is installed is lowered, and in the case where the ventilator is not used for a long time, dew condensation occurs inside the ventilator.
As a means for preventing the dew condensation phenomenon from occurring in the ventilator, an exhaust fan for sucking indoor air and discharging the air to the outside is started, or a heater is provided inside the ventilator and the dew condensation is removed by heat generated by the heater in the related art.
However, if the exhaust duct is operated for a predetermined time or more, the pressure in the room may become negative and be polluted, and the outdoor cold air is mixed into the room, and there are limits as follows: condensation can be prevented only in a passage through which indoor air flows to the outside, but condensation cannot be prevented in a space into which outside air flows. Further, when the dew condensation is removed by heat generation of the heater, there is a problem that power consumption increases.
As a conventional art relating to a ventilator for preventing dew condensation, the following technique is proposed in korean patent No. 10-1162973 (heat recovery type ventilator with dehumidification function): a damper (damper) is provided to a side wall for dividing an inflow passage of outdoor air and a discharge passage of indoor air in the interior of the ventilator, so that the indoor air flowing into the discharge passage is bypassed (bypass) to the inflow passage side of the outdoor air by opening of the damper and is recirculated to the indoor side to perform a dehumidifying function.
However, according to the above-described configuration, since the damper is provided on the side wall of the interior of the ventilator, there is a disadvantage that the volume of the ventilator needs to be increased in order to secure the installation space of the damper, and the flow path for recirculating the indoor air is limited, so that there is a problem that condensation cannot be prevented in the entire area of the ventilator.
In addition, there is a bypass type ventilator for performing cooling of outside air among conventional ventilators. It is constructed in the following way: the temperature of the indoor can be lowered by a predetermined level by disabling heat exchange between discharged indoor air and supplied outdoor air and performing outside air cooling to directly introduce outdoor air into the indoor. Such external air cooling is generally performed in the season change of spring or autumn, and is not used in winter, but in the case of not using the bypass mode, air stagnates in the bypass passage, causing dew condensation to occur and air pollution, thus having a problem of causing bacterial growth.
Also, korean patent No. 10-0577252 discloses an air purification and ventilation system having both an air purification function and a ventilation function, but since the ventilation device and the air purification device are configured relatively independently, there is a problem in that the volume of the device is large and the cost is increased.
Disclosure of Invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a ventilation apparatus including: the condensation is effectively prevented from occurring inside and outside the apparatus, and the ventilation amount required by indoor personnel can be sufficiently satisfied while maximizing energy efficiency, and particularly, the indoor is always maintained at a positive pressure, so that contamination from the outside can be prevented.
The ventilation device 1 of the present invention for achieving the above object includes: a first exhaust chamber 10 into which the indoor air flows 10; a second discharge chamber 20 for discharging the indoor air passing through the first discharge chamber 10 to the outside; a first air supply chamber 30 into which outdoor air flows; a second air supply chamber 40 for supplying outdoor air passing through the first air supply chamber 30 to the indoor; a total heat exchanger 50 for exchanging heat between the indoor air flowing from the first exhaust chamber 10 to the second exhaust chamber 20 and the outdoor air flowing from the first air supply chamber 30 to the second air supply chamber 40, wherein a bypass passage 70 is formed on one side of the first exhaust chamber 10, the second exhaust chamber 20, the first air supply chamber 30, the second air supply chamber 40, and the total heat exchanger 50 via a partition plate 60, and the bypass passage 70 provides a flow path for allowing the indoor air flowing into the first exhaust chamber 10 to flow toward the second exhaust chamber 20 without passing through the total heat exchanger 50 in a bypass mode; in the air cleaning mode, a flow path is provided for allowing all of the room air flowing into the first exhaust chamber 10 to flow toward the first air supply chamber 30; in the dew condensation control mode, a flow path is provided to the first air supply chamber 30 side so that all or a part of the indoor air flowing into the first air discharge chamber 10 is mixed with the outdoor air flowing into the first air supply chamber 30.
The first exhaust chamber 10 may be provided with: a first communication port 10a formed in the partition plate 60 to communicate the first exhaust chamber 10 with the bypass passage 70; an air purge damper 12 that opens and closes a passage through which indoor air flows toward the total heat exchanger 50, and is provided in the second exhaust chamber 20 with: a second communication port 20a formed in the partition plate 60 to communicate the second exhaust chamber 20 with the bypass passage 70; a bypass damper 22 that opens and closes the second communication port 20 a; and an exhaust damper 23 for opening and closing a passage through which the indoor air flowing into the second exhaust chamber 20 is discharged to the outside, the first air supply chamber 30 including: a third communication port 30a formed in the partition plate 60 to communicate the first air supply chamber 30 with the bypass passage 70; a mixing damper 32 that opens and closes the third communication port 30 a; and an air supply damper 33 for opening and closing a passage through which outdoor air flows into the first air supply chamber 30.
In the air cleaning mode, the mixing damper 32 may be opened, the air cleaning damper 12, the bypass damper 22, the exhaust damper 23, and the air supply damper 33 may be closed, and the air supply blower 43 may be driven.
In the dew condensation control mode, the air purge damper 12, the exhaust damper 23, the mixing damper 32, and the air supply damper 33 may be opened, the bypass damper 22 may be closed, and the exhaust blower 25 and the air supply blower 43 may be driven.
The first exhaust chamber 10 may be provided with a first temperature sensor 13 and a first humidity sensor 14 for measuring a dew point of indoor side air, the second air supply chamber 40 may be provided with a second temperature sensor 42 for measuring a temperature of outdoor air supplied to the indoor, and in a case where a temperature measured from the second temperature sensor 42 is lower than the dew point of the indoor side air, the blend door 32 may be controlled to be opened and the rotation number of the air supply blower 43 may be controlled to be increased.
The first exhaust chamber 10 may be provided with a dew point temperature sensor 15 for measuring a dew point of indoor side air, the second air supply chamber 40 with a second temperature sensor 42 for measuring a temperature of outdoor air supplied to the indoor, and in a case where the temperature measured from the second temperature sensor 42 is lower than the dew point of the indoor side air, the blend door 32 is controlled to be opened and the number of rotations of the air supply blower 43 is controlled to be increased.
In the case where the second exhaust chamber 20 may be equipped with a second humidity sensor 24 for measuring the humidity of the discharged indoor air, the mixing damper 32 is controlled to be opened and the rotation number of the air-supply blower 43 is controlled to be increased in the case where the humidity measured from the second humidity sensor 24 exceeds a preset humidity value.
The blend door 32 may include: a rotary shaft 32a disposed in a perpendicular manner to a flow direction of the indoor air passing through the third communication port 30 a; a damper plate 32b that rotates about the rotation shaft 32a to open and close the third communication port 30 a; a planar heating element 32c attached to a surface of the damper panel 32b on the outdoor air introduction side; a moisture sensor 32d provided on a surface of the damper panel 32b on the indoor air introduction side, and the planar heating element 32c is controlled to generate heat when moisture is sensed by the moisture sensor 32 d.
The blowing capacity of the air supply blower 43 may be set to be larger than the blowing capacity of the exhaust blower 25: a flow rate of the indoor air flowing into the first air discharge chamber 10 to be bypassed to the first air supply chamber 30 in the dew condensation control mode.
A filter 51 for filtering foreign substances contained in the air flowing into the total heat exchanger 50 may be provided at a side of the total heat exchanger 50 facing the first air feeding chamber 30.
According to the ventilator of the present invention, the bypass passage which can be used by using a bypass passage for cooling the indoor air for outside air, a bypass passage for purifying the indoor air, and a bypass passage for preventing dew condensation of the ventilator can be integrally formed at the lower part or the upper part of the ventilator, so that dew condensation can be effectively prevented from occurring inside and outside the ventilator, and the ventilation amount required by the indoor person can be satisfied, thereby creating a comfortable indoor environment.
In the bypass mode, the air cleaning mode, and the dew condensation control mode, the bypass passage is also used as a flow passage through which the indoor air flows, and the communication port connected to the bypass passage is formed in the partition plate, so that an installation space for opening and closing the communication port damper can be secured.
Further, since the indoor air flows through the bypass passage in the air cleaning mode and the condensation mode, it is possible to prevent waste of energy while enlarging a region for preventing condensation of the ventilator, as compared with a case where only the exhaust fan is driven or a free heater is used, and thus it is possible to maximize energy use efficiency.
Further, when the temperature of the air supplied from the second air supply chamber to the indoor becomes lower than the dew point of the indoor air measured in the first exhaust chamber or when the humidity of the indoor air discharged from the second exhaust chamber to the outdoor exceeds a preset humidity value, the opening of the mixing damper can be automatically controlled, and the number of rotations of the air supply blower is increased, so that the usability of the ventilation apparatus for preventing the occurrence of dew condensation can be improved.
Drawings
Fig. 1 (a) and (b) are a schematic plan view and a schematic side view of a ventilator according to an embodiment of the present invention, respectively.
Fig. 2 is a schematic view of the ventilation apparatus shown in fig. 1.
Fig. 3 is a control block diagram of the ventilation apparatus shown in fig. 1.
Fig. 4 (a) and (b) are a plan view and a side view, respectively, illustrating a heat exchange mode of the ventilator shown in fig. 1.
Fig. 5 is a schematic view illustrating a heat exchange mode of the ventilator shown in fig. 1.
Fig. 6 (a) and (b) are a schematic plan view and a schematic side view showing a bypass flow pattern of the ventilation device shown in fig. 1.
Fig. 7 is a schematic view illustrating a bypass mode of the ventilation device shown in fig. 1.
Fig. 8 (a) and (b) are a schematic plan view and a schematic side view showing an air cleaning mode in the ventilation apparatus shown in fig. 1.
Fig. 9 is a schematic view illustrating an air cleaning mode of the ventilator shown in fig. 1.
Fig. 10 (a) and (b) are a schematic plan view and a schematic side view, respectively, illustrating a dew condensation control mode of the ventilator shown in fig. 1.
Fig. 11 is a schematic diagram illustrating a dew condensation control mode of the ventilator shown in fig. 1.
Fig. 12 is a schematic plan view of a ventilation device according to another embodiment of the present invention.
Fig. 13 is a schematic view of the ventilation apparatus shown in fig. 12.
Fig. 14 is a control block diagram of the ventilation device shown in fig. 12.
Description of the symbols
1: the ventilation device 10: a first exhaust chamber
10 a: first communication port 11: indoor air inflow port
12: air cleaning damper 13: first temperature sensor
14: first humidity sensor 15: dew point temperature sensor
20: second exhaust chamber 20 a: second communicating port
21: indoor air discharge port 22: bypass air door
23: exhaust damper 24: second humidity sensor
25: exhaust blower 30: a first air supply chamber
30 a: third communication port 31: outdoor air inlet
32: blend door 32 a: rotating shaft
32 b: the damper panel 32 c: planar heater
32 d: moisture sensing sensor 33: air supply air door
40: second air supply chamber 41: outdoor air outlet
42: second temperature sensor 43: air supply blower
50: total heat exchanger 51: filter
60: separator 70: bypass channel
80: the mode setting unit 90: control unit
Detailed Description
Hereinafter, the configuration and operation of the preferred embodiment according to the present invention will be described in detail with reference to the drawings.
Referring to fig. 1 to 3, a ventilation apparatus 1 according to an embodiment of the present invention includes: a first exhaust chamber 10 into which the indoor air flows 10; a second discharge chamber 20 for discharging the indoor air passing through the first discharge chamber 10 to the outside; a first air supply chamber 30 into which outdoor air flows; a second air supply chamber 40 for supplying outdoor air passing through the first air supply chamber 30 to the indoor; and a total heat exchanger 50 for performing heat exchange between the indoor air flowing from the first discharge chamber 10 to the second discharge chamber 20 and the outdoor air flowing from the second discharge chamber 20 to the first discharge chamber 10. The ventilation device 1 of the present invention is configured such that the first exhaust chamber 10, the second exhaust chamber 20, the first air supply chamber 30, the second air supply chamber 40, and the total heat exchanger 50 are disposed on the upper side of the partition plate 60 with respect to the partition plate 60, and the bypass passage 70 is disposed on the lower side of the partition plate 60.
In the present embodiment, the bypass duct 70 is provided at the lower portion of the ventilator 1 as an example, but the bypass duct 70 may be provided at the upper portion of the ventilator 1.
Further, the ventilator 1 of the present invention is configured to further include a mode setting part 80 for selecting a heat exchange mode in which heat exchange between discharged indoor air and supplied outdoor air is achieved, a bypass mode, an air purification mode, and a condensation control mode, and a control part 90 for controlling the operation of the ventilator 1 based on the mode set from the mode setting part 80; in the bypass mode, the outdoor air is supplied to the indoor side without heat exchange with the indoor air to cool the indoor air; in the air purification mode, the indoor air is recycled to realize the purification of the indoor air and the condensation prevention of the ventilation device; in the dew condensation control mode, all or a part of the discharged indoor air is mixed with the outdoor air supplied to the indoor side to realize dew condensation prevention of the outdoor ventilation and air exchange device.
In the case of the bypass mode, the bypass passage 70 provides a flow path through which the indoor air flowing into the first exhaust chamber 10 flows toward the second exhaust chamber 20 without passing through the total enthalpy heat exchanger 50; in the case of the air cleaning mode, the bypass passage 70 provides a flow path for flowing the entire indoor air flowing into the first exhaust chamber 10 to the first air supply chamber 30 side; in the dew condensation control mode, the bypass passage 70 provides a path for flowing toward the first air supply chamber 30 such that all or a part of the indoor air flowing into the first air supply chamber 10 is mixed with the outdoor air flowing into the first air supply chamber 30.
An indoor air inflow port 11 for allowing indoor air to flow in is provided at an indoor side of the first exhaust chamber 10. The first exhaust chamber 10 is provided with: a first communication port 10a formed in the partition plate 60 to communicate the first exhaust chamber 10 with the bypass passage 70; an air purge damper 12 for opening and closing a passage through which indoor air flows toward the total heat exchanger 50; a first temperature sensor 13 and a first humidity sensor 14 for measuring an indoor side temperature and humidity for calculating a dew point (dew point) of the indoor side air.
An indoor air outlet 21 for discharging indoor air to the outdoor side is provided on the outdoor side of the second exhaust chamber 20, and an exhaust damper 23 for opening and closing a flow path for discharging indoor air to the outdoor side is provided on the inner side of the indoor air outlet 21. The second exhaust chamber 20 is provided with: a second communication port 20a formed in the partition plate 60 to communicate the second exhaust chamber 20 with the bypass passage 70; a bypass damper 22 for opening and closing the second communication port 20 a; a second humidity sensor 24 for measuring the humidity of the indoor air discharged from the second exhaust chamber 20; the exhaust fan 25 forcibly sucks the indoor air to the outdoor side.
An outdoor air inflow port 31 for allowing outdoor air to flow in is provided on the outdoor side of the first air supply chamber 30, and an air supply damper 33 for opening and closing a flow path for allowing outdoor air to flow in is provided on the inner side of the outdoor air inflow port 31. The first air supply chamber 30 is provided with: a third communication port 30a formed in the partition plate 60 to communicate the first air supply chamber 30 with the bypass passage 70; and a mixing damper 32 for opening and closing the third communication port 30 a.
Referring to fig. 1, the mixing damper 32 is configured to include: a rotary shaft 32a disposed in a perpendicular manner to a flow direction of the indoor air passing through the third communication port 30 a; a damper plate 32b that rotates about the rotation shaft 32a to open and close the third communication port 30 a; a planar heating element 32c attached to an outdoor air introduction side surface of the damper plate 32 b; and a moisture sensor 32d provided on an indoor air introduction side of the damper panel 32 b. When moisture is sensed by moisture sensor 32d, control unit 90 controls planar heating element 32c to generate heat.
According to the above configuration, with the third communication port 30a provided with the mixing damper 32 as a reference, when there is a temperature difference between the indoor air in a relatively high temperature state flowing through the bypass duct 70 positioned on the lower side thereof and the outdoor air in a relatively low temperature state flowing into the first air supply chamber 30 positioned on the upper side thereof, and moisture is generated in the damper panel 32b due to the condensation phenomenon caused by the temperature difference, the control unit 90 controls the planar heating element 32c to be supplied with power based on the signal sensed by the moisture sensing sensor 32d, so that the surface on the outdoor air introduction side of the damper panel 32b can be heated by heat generation of the planar heating element 32c to reduce temperature deviation between the upper and lower surfaces, thereby preventing the occurrence of condensation.
An outdoor air outlet 41 for discharging outdoor air to the indoor side is provided on the indoor side of second air supply chamber 40, and second air supply chamber 40 includes: a second temperature sensor 42 for measuring a temperature of outdoor air supplied to the indoor; and an exhaust blower 43 for forcibly sucking outdoor air to the indoor side.
The total enthalpy heat exchanger 50 is configured such that a flow path through which indoor air flows and a flow path through which outdoor air flows are alternately formed inside, thereby enabling heat exchange between the indoor air and the outdoor air. Also, a filter 51 is provided at one side of the total heat exchanger 50 facing the first air feeding chamber 30 to filter foreign substances contained in the outdoor air to be supplied or the indoor air recirculated in the air cleaning mode or the dew condensation control mode. The filter 51 may be a medium filter (middle filter), a high efficiency filter (HEPA filter), a deodorizing filter, or the like.
Hereinafter, the operations of the heat exchange mode, the bypass mode, the air purification mode, and the condensation control mode of the ventilator 1 according to the embodiment of the present invention will be described with reference to fig. 4 to 11.
First, referring to fig. 4 and 5, in the heat exchange mode, the air purge damper 12 and the exhaust damper 23 as well as the air supply damper 33 are opened; the bypass damper 22 and the blend damper 32 are closed; the exhaust blower 25 and the air supply blower 43 are driven.
Therefore, in the heat exchange mode, the indoor air flows into the first exhaust chamber 10 through the indoor air inlet 11, passes through the total enthalpy heat exchanger 50 and the second exhaust chamber 20, and is discharged to the outdoor side through the indoor air discharge port 21. After the outdoor air flows into first air supply chamber 30 through outdoor air inflow port 31, the outdoor air passes through total heat exchanger 50 and second air supply chamber 40, and is discharged to the indoor side through outdoor air discharge port 41. The indoor air and the outdoor air are heat-exchanged by the total heat exchanger 50.
Referring to fig. 6 and 7, in the bypass mode, the bypass damper 22 and the exhaust damper 23 and the air supply damper 33 are opened; the air purge damper 12 and the blend damper 32 are closed; the blower 25 for exhaust air and the blower 43 for supply air are driven.
Therefore, in the bypass mode, the indoor air flows into the first exhaust chamber 10 through the indoor air inlet 11, then passes through the first communication port 10a to change the flow direction to the downward direction, and passes through the bypass duct 70, and the indoor air passing through the bypass duct 70 passes through the second communication port 20a to change the flow direction to the upward direction, and flows into the second exhaust chamber 20, and then passes through the indoor air outlet 21 to be discharged to the outdoor side. Outdoor air flows into first air supply chamber 30 through outdoor air inflow port 31, passes through total heat exchanger 50 and second air supply chamber 40, and is discharged to the indoor side through outdoor air discharge port 41.
Therefore, in the bypass mode, heat exchange is not formed between the discharged indoor air and the supplied outdoor air, and the outdoor air is supplied to the indoor side without temperature change.
In fig. 6 (a), the dashed arrows indicate the flow paths of the indoor air on the way through the bypass duct 70, and the relatively thick lines in fig. 7 indicate the flow paths of the indoor air and the outdoor air, which are also the same in the following drawings.
Referring to fig. 8 and 9, in the air cleaning mode, the blend door 32 is opened, the air cleaning door 12, the bypass door 22, the exhaust door 23, and the air supply door 33 are closed, and the air supply blower 43 is driven.
Therefore, in the recirculation mode, after the indoor air flows into the first exhaust chamber 10 through the indoor air inflow port 11, the flow direction is converted into the downward direction by the first communication port 10a and passes through the bypass passage 70, and the indoor air passing through the bypass passage 70 is converted into the upward direction by the third communication port 30a and flows into the first air supply chamber 30, and then is discharged to the indoor side through the total heat exchanger 50 and the second air supply chamber 40.
As described above, in the air cleaning mode, since the impurities contained in the indoor air are filtered by the filter 51, the indoor air can be cleaned, and in addition to this, the indoor air can be circulated through the bypass duct 70, and the indoor air can be made to flow through the bypass duct 70 formed throughout the lower portion of the ventilator 1, so that the occurrence of condensation can be prevented in the entire area of the ventilator 1, and the propagation of bacteria due to air pollution that may be caused if the flow of air stagnates inside the bypass duct 70 can be prevented.
Referring to fig. 10 and 11, in the dew condensation control mode, the air purge damper 12, the exhaust damper 23, the blend damper 32, and the air supply damper 33 are opened, the bypass damper 22 is closed, and the exhaust blower 25 and the air supply blower 43 are driven.
Therefore, in the dew condensation control mode, a portion of the indoor air flowing into the first air discharge chamber 10 through the indoor air inflow port 11 is converted in flow direction into a downward direction by the first communication port 10a and passes through the bypass passage 70, and the indoor air passing through the bypass passage 70 is converted in flow direction into an upward direction by the third communication port 30a and flows into the first air supply chamber 30, and then is mixed with the outdoor air flowing into the first air supply chamber 30 and is discharged to the indoor side through the total heat exchanger 50 and the second air supply chamber, and the remaining portion of the indoor air flowing into the first air discharge chamber 10 through the indoor air inflow port 11 is discharged to the outdoor through the total heat exchanger 50 and the second air discharge chamber 20. In the condensation control mode, the entire indoor air flowing into the first exhaust chamber 10 through the indoor air inlet 11 may be configured to flow into the first air supply chamber 30 through the first communication port 10a, the bypass passage 70, and the third communication port 30a, and in this case, the air purge damper 12 may be controlled to be closed.
As described above, in the dew condensation control mode, fresh outdoor air can be made to flow into the indoor side while recirculating indoor air, so that a ventilation amount required by indoor personnel can be sufficiently satisfied, and an appropriate indoor environment can be created, and also, since negative pressure is prevented from being generated in the indoor space, indoor inflow of contaminated outdoor cold air that may be caused when negative pressure is generated can be prevented. In the dew condensation control mode, as in the case of the air cleaning mode described above, since the indoor air flows through the bypass duct 70 formed throughout the entire lower portion of the ventilator 1, it is possible to prevent dew condensation from occurring in the entire area of the ventilator 1 and to prevent the propagation of bacteria due to air pollution that may be caused if the flow of air stagnates inside the bypass duct 70.
The control unit 90 may compare the dew point of the indoor air calculated based on the temperature and humidity values measured by the first temperature sensor 13 and the second humidity sensor 14 with the temperature of the outdoor air supplied to the room measured by the second temperature sensor 42, and may control the mixing damper 32 to be opened and the number of rotations of the air supply blower 43 to be increased to prevent the occurrence of dew condensation when the temperature measured by the second temperature sensor is lower than the dew point of the indoor air.
In addition, when the humidity of the discharged indoor air measured from the second humidity sensor 24 exceeds a preset humidity value (for example, 80 to 90% relative humidity), the control unit 90 controls the mixing damper 32 to be opened and the rotation number of the air supply blower 43 to be increased, thereby preventing the occurrence of condensation.
In addition, the ventilator 1 according to another embodiment of the present invention shown in fig. 12 to 14 is different in that the first temperature sensor 13 and the first humidity sensor 14, which are the configurations of the above-described embodiment, are configured instead of the dew point temperature sensor 15, and the remaining configurations may be configured to be the same as the above-described embodiment.
In the present embodiment, the control part 90 compares the dew point of the indoor air measured from the dew point temperature sensor 15 with the temperature of the outdoor air supplied to the room measured from the second temperature sensor 42, and controls the air mix door 32 to be opened and the number of rotations of the air supply blower 43 to be increased in case that the temperature measured from the second temperature sensor 42 is lower than the dew point of the indoor air measured from the dew point temperature sensor 15, thereby preventing the occurrence of dew condensation.
The air supply blower 43 has a blowing capacity set to be larger than that of the exhaust blower 25: a degree corresponding to a preset flow rate at which the indoor air flowing into the first discharge chamber 10 is bypassed to the first air feeding chamber 30 in the dew condensation control mode.
For example, when the flow rate of the air discharged through the outdoor air discharge port 21 is set to 100, the flow rate of the air supplied through the outdoor air inlet 31 is set to 100, and the flow rate of the indoor air mixed with the supplied outdoor air is set to 50, the indoor air of 150 flows into the indoor air inlet 11, the 100 flow rate of the indoor air of 150 flows is discharged to the outside through the total heat exchanger 50 and the exhaust blower 25 of the second exhaust chamber 20, and the 50 flow rate of the indoor air of 150 flows is mixed with the outdoor air of 100 flows flowing into the first air supply chamber 30 through the outdoor air inlet 31 after flowing into the first air supply chamber 30 through the bypass passage 70, and the 150 flow rate of air mixed in the first air supply chamber 30 is supplied to the inside through the total heat exchanger 50 and the air supply blower 43 of the second air supply chamber 40.
In this case, the exhaust blower 25 is set to a capacity capable of blowing 100 flows of air, and the air supply blower 43 is set to a capacity capable of blowing 150 flows of air.
In the ventilator 1 according to the present invention configured as described above, the bypass duct 70 that can be used as a flow path through which indoor air passes in the bypass mode, the air cleaning mode, and the condensation control mode is provided at the lower portion or the upper portion of the ventilator 1, and the ventilator 1 is controlled to be operable according to the conditions for each mode, and therefore, the following advantages are provided: the generation of dew condensation can be effectively prevented in the whole area of the ventilator, and the ventilation amount required by indoor personnel can be fully satisfied, and simultaneously, the efficiency of energy can be maximized.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0025497 | 2016-03-03 | ||
| KR1020160025497A KR101824148B1 (en) | 2016-03-03 | 2016-03-03 | Ventilator |
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| Publication Number | Publication Date |
|---|---|
| CN107152744A CN107152744A (en) | 2017-09-12 |
| CN107152744B true CN107152744B (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710123602.XA CN107152744B (en) | 2016-03-03 | 2017-03-03 | Air interchanger |
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| Country | Link |
|---|---|
| KR (1) | KR101824148B1 (en) |
| CN (1) | CN107152744B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780634A (en) * | 2017-11-14 | 2019-05-21 | 庆东纳碧安株式会社 | Air-conditioning |
| CN108168013A (en) * | 2017-12-31 | 2018-06-15 | 妙境（北京）环境科技有限公司 | A kind of micro-positive pressure central air handling system |
| KR102059414B1 (en) * | 2018-05-04 | 2019-12-27 | (주)정민 | A multi-function heat exchanger |
| KR102147675B1 (en) * | 2018-05-04 | 2020-08-26 | (주)정민 | A multi-function heat exchanger |
| KR102125693B1 (en) * | 2018-07-06 | 2020-07-08 | 박정호 | Ductless ventilation system |
| CN110848868A (en) * | 2018-08-20 | 2020-02-28 | 广东松下环境系统有限公司 | Air supply device |
| KR101956591B1 (en) * | 2018-10-23 | 2019-03-11 | (주)브이아이테크 | Ventilation type air purification system with heat recovery function |
| KR102052346B1 (en) * | 2018-12-03 | 2019-12-04 | 주식회사 티아이씨 | Air conditioning system in building room |
| KR102077462B1 (en) * | 2019-01-17 | 2020-02-14 | (주)미래비엠 | Apparatus for air conditioning |
| KR102052348B1 (en) * | 2019-02-01 | 2019-12-04 | 주식회사 티아이씨 | Vantilation |
| KR102160260B1 (en) * | 2019-05-27 | 2020-09-28 | 타이톤코리아(주) | Ductless Heat Exchanger |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20170103133A (en) | 2017-09-13 |
| KR101824148B1 (en) | 2018-01-31 |
| CN107152744A (en) | 2017-09-12 |
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