JP2019190673A - Ventilation device - Google Patents

Abstract

To provide a floor-placed ventilation device enabling reduction of a vertical projection area of the device by stacking dropping vaporization type humidification elements vertically.SOLUTION: A ventilation device 60 includes: a supply air blower 29 for sucking outdoor air and supplying supply air to an indoor side; a discharge air blower 27 for sucking indoor air and discharging the air to an outdoor side; heat exchange elements 11 that perform total heat exchange between the outdoor air and the indoor air; humidification element units 33 having dropping vaporization type humidification elements for humidifying the supply air and water receiving sections for receiving water discharged from the humidification elements; and a water discharge pipe for discharging the water received by the water receiving sections. The plurality of humidification element units 33 are stacked in the height direction, and the water discharge pipe is connected to the water receiving sections at positions different from those on the vertical projection areas of the humidification elements. The water discharge pipe are not disposed between the humidification element units.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a floor-standing ventilation apparatus provided with a humidifying element.

  Since a floor-standing ventilation device equipped with a humidifying element is installed in a limited space such as a machine room, the vertical projection area is often more restrictive than the height.

  Patent Document 1 discloses a ventilator in which a plurality of humidifying element units are stacked in the vertical direction to reduce the vertical projection area of the apparatus and increase the degree of freedom of installation.

JP 2000-283517 A

  In the ventilator disclosed in Patent Document 1, a plurality of humidifying element units are stacked without gaps in the vertical direction. The humidifying element unit that can be stacked without a gap includes a moisture permeable membrane type humidifying element unit. The moisture permeable membrane type humidifying element humidifies the air flowing on the surface of the bag by putting water in the bag having moisture permeability and releasing it in the form of water vapor from the surface of the bag.

  On the other hand, a drop vaporization type humidifying element, which is a kind of humidifying element, humidifies air by evaporating in the process in which water soaked in the humidifying element moves downward. The humidifying element of the drip vaporization type humidifying element is not limited to a specific material and shape as long as it has water retention. Therefore, the humidifying element of the drip vaporizing type humidifying element is easier to manufacture than the humidifying element of the moisture permeable film type humidifying element that requires forming a film having moisture permeability into a bag shape. For this reason, in a ventilator installed on the floor, there is a need to reduce the vertical projection area by stacking dripping vaporizing type humidifying elements in the vertical direction.

  A general drip vaporization type humidifying element receives excess water that has not evaporated by a sub-drain pan and drains it through a drain pipe. Therefore, it is necessary to route a drain pipe below the humidifying element in a general drip vaporization type humidifying element. However, the ventilator disclosed in Patent Document 1 does not have a space for routing the drain pipe below each of the stacked humidifying elements. Therefore, a general drip vaporization type humidifying element unit cannot be applied to the ventilator disclosed in Patent Document 1.

  The present invention has been made in view of the above, and provides a floor-mounted ventilation device in which dripping vaporizing humidifying element units are stacked in the vertical direction to reduce the vertical projection area of the device. With the goal.

  In order to solve the above-described problems and achieve the object, the present invention includes an air supply blower that sucks outdoor air and supplies supply air into the room, an exhaust blower that sucks indoor air and exhausts it to the outside, A heat exchange element that performs total heat exchange between air and room air, a drip vaporization type humidification element that humidifies supply air, a humidification element unit that includes a water receiving part that receives drainage from the humidification element, and water And a drainage pipe for draining the water received in the receiving part. A plurality of humidifying element units are installed in the height direction. The drain pipe is connected to the water receiver at a position different from the vertical projection surface of the humidifying element. No drain pipe is disposed between the humidifying element units.

  Advantageous Effects of Invention According to the present invention, there is an effect that it is possible to provide a floor-standing ventilation device in which dripping vaporization type humidifying element units are stacked in the vertical direction and the vertical projection area of the device is reduced.

The perspective view of the ventilator which concerns on Embodiment 1 of this invention Front view of a ventilator according to Embodiment 1 The front view of the heat exchange element of the ventilation apparatus which concerns on Embodiment 1. FIG. The top view of the ventilator which concerns on Embodiment 1. The top view of the ventilator which concerns on Embodiment 1. Front view of humidification section and air supply passage section of ventilating apparatus according to Embodiment 1 The perspective view of the humidification element unit of the ventilation apparatus which concerns on Embodiment 1. FIG. The disassembled perspective view of the humidification element unit of the ventilation apparatus which concerns on Embodiment 1. FIG. The perspective view of the sub drain pan of the ventilator which concerns on Embodiment 1. FIG. The perspective view of the sub drain pan of the ventilator which concerns on Embodiment 1. FIG. The figure which shows the sub drain pan drainage of the ventilator which concerns on Embodiment 1. Front side perspective view of humidification part of ventilation apparatus according to Embodiment 1 The rear side perspective view of the humidification part of the ventilator which concerns on Embodiment 1. FIG. Front side perspective view of humidification part of ventilation apparatus according to Embodiment 1 The perspective view of the confluence | merging part of the drain pipe below the humidification part of the ventilation apparatus which concerns on Embodiment 1. FIG. The figure which shows the drainage pipe of the drainage piping confluence | merging part of the ventilation apparatus which concerns on Embodiment 1.

  Hereinafter, a ventilation device according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a ventilation device according to Embodiment 1 of the present invention. FIG. 2 is a front view of the ventilation device according to the first embodiment. The ventilation device 60 according to Embodiment 1 includes a heat exchange element unit 1 including a heat exchange element 11 that performs heat exchange between air supplied into a room and air exhausted outside the room, and an airflow flowing into the heat exchange element 11 A distribution passage portion 2 that distributes air, a collection passage portion 3 that collects airflow that has passed through the heat exchange element 11, an indoor intake chamber portion 4 into which air sucked from the room flows in, and an air supply that generates an airflow that is supplied into the room A blower unit 5, an exhaust blower unit 6 that generates an air flow exhausted to the outside, an air supply passage portion 7 through which air supplied to the room passes, a humidifying unit 8 that humidifies the air supplied to the room, and a blower The circuit part 9 to control is provided, and each part is combined in the casing 10.

  The heat exchange element section 1 is disposed in a space defined in the central part of the ventilation device 60, and the distribution path section 2 is disposed on the left side of the heat exchange element section 1, and the collecting path section 3 is disposed on the right side. Has been. The heat exchange element unit 1 stores a plurality of heat exchange elements 11 stacked in the vertical direction. Note that the ventilation device 60 may have a symmetrical structure with the illustrated structure.

  FIG. 3 is a front view of the heat exchange element of the ventilation device according to the first embodiment. As shown in FIG. 3, the heat exchange element 11 has an indoor air suction surface 12 and an outside air suction surface 13 arranged symmetrically on the left side surface of the heat exchange element 11, and the indoor air blowing surface 14. The outside air blowing surface 15 is arranged side by side in the vertical direction so as to be arranged symmetrically on the right side surface of the heat exchange element 11.

  Further, a suction surface partition plate 16 is provided vertically on the left side surface of the heat exchange element 11 so that the room air sucked from the room air suction surface 12 and the outside air sucked from the outside air suction surface 13 are not mixed. Similarly, a blow-off surface partition plate 17 is provided perpendicular to the right side surface of the heat exchange element 11 so that the room air blown out from the room air blow-out surface 14 and the outside air blown out from the outdoor air blow-out surface 15 are not mixed. Moreover, the indoor air suction surface 12 and the outdoor air suction surface 13 are alternately arranged from the top to the bottom on the left side of the heat exchange element portion 1 by the suction surface partition plate 16 and the blowout surface partition plate 17. Similarly, the indoor air blowing surface 14 and the outdoor air blowing surface 15 are alternately arranged on the right side of the heat exchange element unit 1 from top to bottom.

  4 and 5 are plan views of the ventilation device according to Embodiment 1. FIG. The distribution passage portion 2 is divided into front and rear portions by a distribution passage portion partition plate 50, and on the front side, indoor air sucked through the indoor intake chamber portion 4 is communicated with the indoor air suction surface 12, and windward exhaust. A distribution passage 18 is provided, and on the rear surface side, an upwind air supply distribution passage 20 is provided in which outside air sucked from an outside air suction port 19 at the top of the circuit unit 9 communicates with the outside air suction surface 13. . The collective passage portion 3 is divided into front and rear by a collective passage portion partition plate 51, and on the front side, the indoor air blown from the indoor air blowing surface 14 communicates with the exhaust blower portion 6 on the leeward side. A distribution passage 21 is provided, and a leeward air supply / distribution passage 22 through which the outside air blown from the outside air blowing surface 15 communicates with the supply air communication passage portion 7 is provided on the rear surface side.

  As described above, in the distribution passage portion 2, the windward exhaust distribution passage 18 is disposed on the front side, the windward supply distribution passage 20 is disposed on the rear side, and the windward exhaust distribution passage 18 side is further provided. An exhaust bypass passage 23 is formed on the side. The exhaust bypass passage 23 communicates with the leeward exhaust distribution passage 21 through the heat exchange element lower exhaust bypass passage 24. In addition, a switching damper 25 is disposed at a branch path between the exhaust bypass passage 23 and the windward exhaust distribution passage 18, and the indoor intake chamber portion 4 is communicated with the windward exhaust distribution passage 18 or is connected to the exhaust bypass passage 23. You can switch between communicating. Note that the front-rear relationship between the windward exhaust distribution passage 18 and the windward supply air distribution passage 20 is not particularly limited to the above relationship, and may be arranged in the reverse manner. Similarly, as described above, the collective passage portion 3 has the leeward exhaust distribution passage 21 disposed on the front surface side and the leeward air supply distribution passage 22 disposed on the rear surface side. The arrangement is not limited, and the arrangement may be reversed.

  The indoor intake chamber section 4 is provided with an indoor air intake port 26 for taking in indoor air on the left side surface. The right side surface communicates with a communication port provided above the windward exhaust distribution passage 18.

  The exhaust blower unit 6 is disposed in the upper right part of the ventilation device 60, and houses the exhaust blower 27 and the exhaust blower motor 27a therein. The outlet of the exhaust blower 27 communicates with the indoor air outlet 28 provided on the upper surface of the exhaust blower 27 for exhausting the indoor exhaust. Further, the suction port of the exhaust blower 27 is opened in the leeward exhaust distribution passage 21.

  The air supply fan unit 5 is disposed below the exhaust fan unit 6 and houses an air supply fan 29 and an air supply fan motor 29a therein. The outlet of the air supply blower 29 is directed downward and communicates with the air supply communication passage section 7. The intake port of the air supply blower 29 is opened to the leeward air supply distribution passage 22.

  A direct expansion coil 30 is disposed in the supply air communication passage portion 7, and the air blown from the supply air blower 29 can be warmed or cooled by passing through the direct expansion coil 30. If the air blown into the room does not need to be heated or cooled, the direct expansion coil 30 may be omitted. In addition, a drain pan 31 is disposed under the direct expansion coil 30 so as to receive the entire direct expansion coil 30, and water condensed on the direct expansion coil 30 can be received.

  The right side of the humidifying unit 8 communicates with the air supply communication passage unit 7. Also, an outside air outlet 32 for supplying the air blown out by the air supply blower 29 into the room is disposed on the left side of the humidifying unit 8.

  FIG. 6 is a front view of the humidifying section and the air supply communication path section of the ventilator according to the first embodiment. In the humidifying unit 8, a plurality of humidifying element units 33 are stacked in the vertical direction. Further, the right side of the humidifying element unit 33 communicates with the air supply communication passage portion 7, and the air sent through the air supply communication passage portion 7 is disposed so as to hit the humidification element unit 33. In addition, a drain pan 31 is disposed below the humidifying unit 8 and is provided so as to receive the entire humidifying unit 8 together with the direct expansion coil 30.

  The drain pan 31 is provided with a drain pan drain port 34, and the water received by the drain pan 31 can be drained out of the ventilation device 60.

  A direct expansion coil pipe 35 for flowing a refrigerant through the direct expansion coil 30 passes below the humidification unit 8. The periphery of the directly expanded coil pipe 35 is covered with a pipe part shielding plate 36 to prevent the wind from passing from the part other than the humidifying element unit 33 to the humidifying part 8. In the case where the direct expansion coil 30 is not provided, the height of the ventilation device 60 can be increased by disposing the humidifying element unit 33 in the portion through which the direct expansion coil pipe 35 is passed below the humidifying unit 8. The number of humidifying element units 33 can be increased without increasing the size.

  FIG. 7 is a perspective view of the humidifying element unit of the ventilation device according to the first embodiment. FIG. 8 is an exploded perspective view of the humidifying element unit of the ventilation device according to Embodiment 1. FIG. The humidifying element unit 33 holds a dripping vaporizing type humidifying element 37, a sub-drain pan 38 that is a water receiving portion that receives water discharged from the humidifying element 37, a humidifying element holding component 39 that holds the humidifying element 37, and the sub-drain pan 38. The sub-drain pan holding part 40 is provided. FIG. 7 shows only a part of the humidifying element 41 included in the humidifying element 37. The humidification element 37 should just be a humidification system drained from the lower part.

  The water supplied from the upper part of the humidifying element 37 is included in the humidifying element 41, and the air is humidified by sending air to the humidifying humidifying element 41. Further, water that has not been used for humidification by the humidifying element 41 is drained from the lower portion of the humidifying element 37.

  A sub-drain pan 38 is disposed below the humidifying element 37 so as to receive the entire humidifying element 37.

  9 and 10 are perspective views of the sub-drain pan of the ventilation device according to Embodiment 1. FIG. The sub-drain pan 38 is provided with a sub-drain pan outlet 42 for flowing water received by the sub-drain pan 38. The surface of the sub-drain pan 38 that receives the water collects water at the sub-drain pan outlet 42. A downward slope toward the sub-drain pan outlet 42 is provided. The sub-drain pan outlet 42 is provided behind the humidifying element unit 33 and at a location different from the vertical projection surface of the humidifying element 37.

  FIG. 11 is a diagram illustrating a sub-drain pan drain of the ventilator according to the first embodiment. As shown in FIG. 11, the sub-drain pan drain port 42 may be formed separately from the sub-drain pan 38 and the sub-drain pan drain port 42, and the shape of the sub-drain pan 38 may be simplified to improve moldability. .

  The sub drain pan 38 is surrounded and held by the humidifying element holding component 39 and the sub drain pan holding component 40 from above and below. On the mounting surface of the humidifying element 37 of the humidifying element holding component 39, a hole 43 is provided for allowing water flowing out from the humidifying element 37 to flow into the sub-drain pan 38. The humidifying element holding component 39 and the sub-drain pan holding component 40 not only fix the sub-drain pan 38 but also prevent the inflow of wind into the sub-drain pan 38 and prevent the water received by the sub-drain pan 38 from being scattered by blowing. is doing.

  The humidifying element 37 is placed on the humidifying element holding component 39. The edge portion 39 a of the humidifying element holding component 39 is placed on the side wall portion 40 a of the sub drain pan holding component 40, and the humidifying element holding component 39 is supported by the sub drain pan holding component 40. Accordingly, the force due to the weight of the humidifying element 37 placed on the humidifying element holding component 39 is applied to the sub drain pan holding component 40 and not to the sub drain pan 38. By holding the humidifying element 37 with the humidifying element holding component 39 as described above, it is possible to prevent the sub-drain pan 38 from being stressed. Therefore, the sub-drain pan 38 does not need to have a strength that can withstand the weight of the humidifying element 37, and can be formed of an inexpensive material such as acrylonitrile-butadiene-styrene resin, which is also referred to as ABS resin. .

  FIG. 12 is a front perspective view of a humidifying unit of the ventilation device according to Embodiment 1. FIG. FIG. 13 is a rear perspective view of the humidifying unit of the ventilation device according to Embodiment 1. FIG. FIG. 14 is a front perspective view of the humidifying unit of the ventilation device according to the first embodiment. Column parts 44a, 44b, 44c, 44d extending vertically are provided in the humidifying portion 8 at four corners, and the humidifying element unit 33 is screwed to the sub-drain pan holding part 40 on the column parts 44a, 44b, 44c, 44d. The fastening portion 52 is screw-fixed. The screw of the screw fastening part 52 is attached from the humidifying part maintenance port 45 provided on the front surface of the humidifying part 8, and is screwed in such a direction that it can be removed. The humidifying element unit 33 is attached from the humidifying part maintenance port 45, It can be removed. In FIG. 12, the humidifying element unit 33 has four stages and is fixed to the column parts 44a, 44b, 44c, and 44d. However, the number of the humidifying element units 33 according to the required humidification amount. Can be changed.

  Further, in the sub-drain pan 38, a drain pipe 46 for draining the water collected in the sub-drain pan drain port 42 to the outside of the ventilation device 60 is provided in the sub-drain pan 38 at a position different from the vertical projection surface of the humidifying element 37. It is connected. The drainage pipe 46 is led to the lower part of the humidification part 8 through the drainage pipe arrangement part 48 which is the rear part of the humidification element unit 33 and does not overlap the projection surface in the vertical direction of the humidification element 37. It is inserted into the mouth 34. Thereby, the water that has passed through the drain pipe 46 is directly drained out of the ventilation device 60. The drain pipe 46 is connected to the sub-drain pan 38 at a position different from the vertical projection plane of the humidifying element 37, and is arranged at a position different from the vertical projection plane of the humidifying element 37. Therefore, the drain pipe 46 is not disposed between the humidifying element units 33. Therefore, it is not necessary to provide a space for drawing the drain pipe 46 between the humidifying element units 33.

  The drain pipe arrangement part 48 is separated from the humidifying element 37 by a drain pipe part shielding plate 47. Thus, by preventing the wind from entering the drain pipe arrangement portion 48, it is possible to prevent the wind from bypassing other than the humidifying element 37, and water leaks from the sub drain pan drain port 42 and the drain pipe 46. Even when it occurs, water is prevented from being scattered by blowing air. Further, the drain pipe 46 is attached to each humidifying element unit 33. As shown in FIG. 13, since four humidifying element units 33 are mounted in the first embodiment, the first-stage drain pipe 46a, the second-stage drain pipe 46b, the third-stage drain pipe 46c, and the fourth-stage drain pipe. Four of the tubes 46 d are connected to the humidifying element unit 33.

  FIG. 15 is a perspective view of the joining portion of the drain pipe below the humidifying portion of the ventilation device according to Embodiment 1. The drain pipes 46 corresponding to the number of humidifying element units 33 merge at the lower part of the humidifying unit 8 and are aggregated to a number smaller than the number of humidifying element units 33. Thereby, it can suppress that the drain pan drain port 34 becomes large by reducing the number of the drain pipes 46 inserted in the drain pan drain port 34. FIG.

  FIG. 16 is a diagram illustrating a drain pipe of a drain pipe merging portion of the ventilation device according to the first embodiment. The drain pipe 46 joins the first-stage drain pipe 46a and the second-stage drain pipe 46b, and joins the third-stage drain pipe 46c and the fourth-stage drain pipe 46d. The first-stage drain pipe 46a and the third-stage drain pipe 46c are provided with an L-shaped drain pipe 49 on the path. By disposing the L-shaped drain pipe 49, the flow path pressure loss of the first-stage drain pipe 46a and the third-stage drain pipe 46c increases, and the first-stage humidifier element unit 33 and the second-stage humidifier element unit 33 The difference in the amount of drainage due to the head pressure and the difference in the amount of drainage due to the head pressure between the third stage humidifying element unit 33 and the fourth stage humidifying element unit 33 are suppressed, and the first stage drain pipe 46a and the second stage drain pipe 46b Can be made uniform, and the amount of drainage between the third-stage drain pipe 46c and the fourth-stage drain pipe 46d can be made uniform.

  Note that it is only necessary to increase the flow path pressure loss of the upper drain pipe 46 to be joined, and the use is not limited to the L-shaped drain pipe 49. An example of a method for adjusting the flow path pressure loss of the drain pipe 46 is a method of reducing the diameter of the upper drain pipe 46.

  In the ventilator 60 according to the first embodiment, when the drip vaporization type humidifying element unit 33 is mounted on the floor-standing type ventilator 60 that humidifies the outside air and takes air into the room, the drainage from the humidifying element unit 33 is discharged. It is possible to stack the humidifying element units 33 vertically and prevent them from scattering, and to increase the degree of freedom of product installation by minimizing the floor area for product installation. To do.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. The part can be omitted or changed.

  DESCRIPTION OF SYMBOLS 1 Heat exchange element part, 2 Distribution passage part, 3 Collecting passage part, 4 Indoor intake chamber part, 5 Air supply fan part, 6 Exhaust air blower part, 7 Supply air communication path part, 8 Humidification part, 9 Circuit part, DESCRIPTION OF SYMBOLS 10 Casing, 11 Heat exchange element, 12 Indoor air suction surface, 13 Outside air suction surface, 14 Indoor air blowing surface, 15 Outside air blowing surface, 16 Suction surface partition plate, 17 Outflow surface partition plate, 18 Upwind exhaust distribution passage, 19 Outside air suction port, 20 windward side air supply distribution passage, 21 leeward side exhaust distribution passage, 22 leeward side air supply distribution passage, 23 exhaust bypass passage, 24 heat exchange element lower exhaust bypass passage, 25 switching damper, 26 indoor air suction port 27 Exhaust blower, 27a Exhaust blower motor, 28 Indoor air outlet, 29 Supply air blower, 29a Supply air blower mode , 30 Direct expansion coil, 31 Drain pan, 32 Outside air outlet, 33 Humidification element unit, 34 Drain pan drain, 35 Direct expansion coil piping, 36 Piping part shielding plate, 37 Humidification element, 38 Sub drain pan, 39 Humidification element holding parts, 39a Edge part, 40 Sub drain pan holding part, 40a Side wall part, 41 Humidification element, 42 Sub drain pan drain port, 43 holes, 44a, 44b, 44c, 44d Column part, 45 Humidification part maintenance port, 46 Drain pipe, 46a 1st stage Second drainage pipe, 46b Second stage drainage pipe, 46c Third stage drainage pipe, 46d Fourth stage drainage pipe, 47 Drainage pipe part shielding plate, 48 Drainage pipe installation part, 49 L-shaped drainage pipe, 50 Distribution passage part partition Plate, 51 Collecting passage part partition plate, 52 Screw fastening part, 60 Ventilator.

Claims (5)

An air supply blower for sucking outdoor air and supplying supply air into the room;
An exhaust blower that sucks indoor air and exhausts it outside the room;
A heat exchange element for performing total heat exchange between the outdoor air and the indoor air;
A dampening type humidifying element for humidifying the supply air and a humidifying element unit comprising a water receiving part for receiving drainage from the humidifying element;
A drain pipe for draining the water received in the water receiving portion;
A plurality of the humidifying element units are installed in the height direction,
The drain pipe is connected to the water receiver at a position different from the vertical projection surface of the humidifying element;
The ventilator characterized in that the drain pipe is not disposed between the humidifying element units.   The ventilation apparatus according to claim 1, further comprising a drain pipe part shielding plate that separates the drain pipe and the humidifying element.   The drain pipes connected to each of the water receiving portions are aggregated to a number smaller than the number of the humidifying element units in the middle of the drain path, and the drain pipes on the upper side of the aggregated drain pipes The ventilator according to claim 1, further comprising a bent portion that increases flow path pressure loss.   The drain pipes connected to each of the water receiving portions are aggregated to a number smaller than the number of the humidifying element units in the middle of the drain path, and the drain pipe on the upper side of the aggregated drain pipes is The ventilator according to claim 1, wherein the diameter of the pipe is smaller than that of the drain pipe on the lower stage side. The water receiving part is provided with a drain outlet part, which is a separate part from the water receiving part, in a lower part of a hole penetrating vertically.
The ventilator according to claim 1, wherein the drain pipe is connected to the drain port component.