JP6956675B2 - Ventilation device - Google Patents

Description

The present invention relates to a floor-standing ventilation system equipped 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 constrained more than the height constraint.

Patent Document 1 discloses a ventilation device in which a plurality of humidifying element units are stacked and arranged in the vertical direction to reduce the projected area of the device in the vertical direction and increase the degree of freedom of installation.

Japanese Unexamined Patent Publication No. 2000-283517

In the ventilation device disclosed in Patent Document 1, a plurality of humidifying element units are stacked in the vertical direction without a gap. A 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 state of water vapor from the surface of the bag.

On the other hand, the drip vaporization type humidifying element, which is a kind of humidifying element, humidifies the air by evaporating the water soaked in the humidifying element in the process of moving 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 vaporization type humidifying element is easier to manufacture than the humidifying element of the moisture permeable membrane type humidifying element, which needs to form a moisture-permeable film into a bag shape. Therefore, in a floor-standing ventilation device, there is a need to stack dripping vaporization type humidifying elements in the vertical direction to reduce the projected area in the vertical direction.

In a general drip vaporization type humidifying element, excess water that has not evaporated is received by a sub-drain pan and drained through a drain pipe. Therefore, in a general drip vaporization type humidifying element, it is necessary to route a drain pipe below the humidifying element. However, the ventilation device disclosed in Patent Document 1 does not have a space for routing the drain pipe below each of the stacked humidifying elements. Therefore, it is not possible to apply a general drip vaporization type humidifying element unit to the ventilation device disclosed in Patent Document 1.

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

In order to solve the above-mentioned problems and achieve the object, the present invention has an air supply blower that sucks outdoor air and supplies air supply air to the room, an exhaust blower that sucks indoor air and exhausts it to the outside, and an outdoor air. A heat exchange element that exchanges total heat between the air and the room air, a dripping vaporization type humidifying element that humidifies the supply air, a humidifying element unit that has a water receiving part that receives drainage from the humidifying element, and water. It has a drain pipe for draining the water received in the receiving part. A plurality of humidifying element units are installed in a stack in the height direction. The drain pipe is connected to the water receiving portion at a position different from that on the vertical projection surface of the humidifying element. No drainage pipe is arranged between the humidifying element units.

According to the present invention, it is possible to provide a floor-standing ventilation device in which the drip vaporization type humidifying element units are stacked and arranged in the vertical direction to reduce the projected area in the vertical direction of the device.

Perspective view of the ventilation device according to the first embodiment of the present invention. Front view of the ventilation device according to the first embodiment Front view of the heat exchange element of the ventilation device according to the first embodiment Top view of the ventilation device according to the first embodiment Top view of the ventilation device according to the first embodiment Front view of the humidifying section and the air supply connecting passage section of the ventilation device according to the first embodiment. Perspective view of the humidifying element unit of the ventilation device according to the first embodiment. An exploded perspective view of the humidifying element unit of the ventilation device according to the first embodiment. Perspective view of the sub-drain pan of the ventilation device according to the first embodiment. Perspective view of the sub-drain pan of the ventilation device according to the first embodiment. The figure which shows the sub-drain pan drain outlet of the ventilation apparatus which concerns on Embodiment 1. Front side perspective view of the humidifying portion of the ventilation device according to the first embodiment. Rear perspective view of the humidifying portion of the ventilation device according to the first embodiment. Front side perspective view of the humidifying portion of the ventilation device according to the first embodiment. Perspective view of the confluence portion of the drain pipe below the humidifying portion of the ventilation device according to the first embodiment. The figure which shows the drainage pipe of the drainage pipe confluence part of the ventilation system which concerns on Embodiment 1.

Hereinafter, the ventilation device according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is a perspective view of a ventilation device according to a first embodiment 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 the first embodiment is a heat exchange element unit 1 provided with a heat exchange element 11 for exchanging heat between the air supplied to the room and the air exhausted to the outside, and the airflow flowing into the heat exchange element 11. Distribution passage part 2 for distributing air, collecting passage part 3 for collecting airflow passing through the heat exchange element 11, indoor intake chamber part 4 for inflowing air sucked from the room, and air supply for generating an air flow to be supplied into the room. Blower unit 5, exhaust blower unit 6 that generates an air flow to be exhausted to the outside, air supply communication passage part 7 through which the air supplied to the room passes, humidifying unit 8 to humidify the air supplied to the room, and the blower. A circuit unit 9 for controlling is provided, and each unit is combined in the casing 10.

The heat exchange element portion 1 is arranged in a space partitioned in the central portion of the ventilation device 60, and the distribution passage portion 2 is arranged on the left side portion of the heat exchange element portion 1 and the collecting passage portion 3 is arranged on the right side portion. Has been done. Further, a plurality of heat exchange elements 11 are stacked and stored in the heat exchange element unit 1 in the vertical direction. The ventilation device 60 may have a structure symmetrical to the structure shown in the figure.

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, in the heat exchange element 11, the indoor air suction surface 12 and the outside air suction surface 13 are arranged vertically symmetrically on the left side surface of the heat exchange element 11, and the heat exchange element 11 and the indoor air outlet surface 14 are arranged vertically. The outside air blowing surface 15 is arranged vertically side by side on the right side surface of the heat exchange element 11 so as to be arranged vertically symmetrically.

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

4 and 5 are plan views of the ventilation device according to the first embodiment. The distribution passage portion 2 is divided into front and rear by a distribution passage portion partition plate 50, and on the front side, the indoor air sucked through the indoor intake chamber portion 4 is communicated with the indoor air suction surface 12 on the windward side exhaust. A distribution passage 18 is provided, and a windward air supply distribution passage 20 is provided on the rear surface side so that the outside air sucked from the outside air suction port 19 at the upper part of the circuit unit 9 is communicated with the outside air suction surface 13. .. Further, the collecting passage portion 3 is divided into front and rear by a collecting passage portion partition plate 51, and the leeward side exhaust in which the indoor air blown out from the indoor air blowing surface 14 is communicated to the exhaust blower portion 6 on the front side. The distribution passage 21 is arranged, and the leeward side air supply distribution passage 22 is provided on the rear surface side so that the outside air blown out from the outside air blowing surface 15 is communicated with the supply air communication passage portion 7.

As described above, the distribution passage portion 2 is provided with the windward exhaust distribution passage 18 on the front side, the windward air supply air distribution passage 20 on the rear side, and further on the side of the windward exhaust distribution passage 18. An exhaust bypass passage 23 is formed on the side. The exhaust bypass passage 23 is communicated with the leeward side exhaust distribution passage 21 through the heat exchange element lower exhaust bypass passage 24. Further, a switching damper 25 is arranged in the branch passage between the exhaust bypass passage 23 and the wind-up exhaust distribution passage 18, and the indoor intake chamber portion 4 is communicated with the wind-up exhaust distribution passage 18 or is connected to the exhaust bypass passage 23. It is possible to switch between communication and communication. The front-rear relationship between the windward exhaust distribution passage 18 and the windward air supply air distribution passage 20 is not particularly limited to the above relationship, and the arrangement may be the reverse of the above. Similarly, in the collecting passage portion 3, as described above, the leeward side exhaust distribution passage 21 is arranged on the front side and the leeward side air supply distribution passage 22 is arranged on the rear side. The arrangement is not limited, and the arrangement may be the reverse of the above.

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

The exhaust blower unit 6 is arranged in the upper right portion of the ventilation device 60, and houses the exhaust blower 27 and the exhaust blower motor 27a inside. The outlet of the exhaust blower 27 communicates with an 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 side exhaust distribution passage 21.

The air supply blower unit 5 is arranged below the exhaust air blower unit 6, and houses the air supply blower 29 and the air supply blower motor 29a inside. The outlet of the air supply blower 29 is directed downward and communicates with the air supply communication passage portion 7. Further, the suction port of the air supply blower 29 is opened in the leeward air supply distribution passage 22.

A direct expansion coil 30 is arranged in the air supply communication passage portion 7, and the air blown from the air supply blower 29 can be warmed or cooled by passing through the direct expansion coil 30. If it is not necessary to heat or cool the air blown into the room, the direct expansion coil 30 may be omitted. Further, a drain pan 31 is arranged below the direct expansion coil 30 so as to receive the entire direct expansion coil 30, so that the water condensed on the direct expansion coil 30 can be received.

The right side of the humidifying portion 8 is communicated with the air supply communication passage portion 7. Further, on the left side of the humidifying portion 8, an outside air outlet 32 for supplying the air blown by the air supply blower 29 into the room is provided.

FIG. 6 is a front view of the humidifying portion and the air supply connecting passage portion of the ventilation device according to the first embodiment. A plurality of humidifying element units 33 are stacked and arranged in the humidifying portion 8 in the vertical direction. Further, the right side of the humidifying element unit 33 is communicated with the air supply communication passage portion 7, and is arranged so that the air sent through the air supply communication passage portion 7 hits the humidification element unit 33. Further, a drain pan 31 is arranged below the humidifying portion 8 so as to receive the entire humidifying portion 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 to the outside of the ventilation device 60.

A direct expansion coil pipe 35 for flowing a refrigerant through the direct expansion coil 30 passes below the humidifying portion 8. The circumference of the direct expansion coil pipe 35 is covered with a pipe portion shielding plate 36 to prevent air from passing through the humidifying portion 8 from other than the humidifying element unit 33. In the case where the direct expansion coil 30 is not provided, the height dimension of the ventilation device 60 can be adjusted by disposing the humidification element unit 33 also in the portion where the direct expansion coil pipe 35 is passed under the humidifying portion 8. The number of humidifying element units 33 mounted 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 the first embodiment. The humidifying element unit 33 holds a drip vaporization type humidifying element 37, a sub-drain pan 38 which is a water receiving portion for receiving water discharged from the humidifying element 37, a humidifying element holding component 39 for holding the humidifying element 37, and a sub-drain pan 38. The sub-drain pan holding component 40 is provided. Note that FIG. 7 shows only a part of the humidifying element 41 included in the humidifying element 37. The humidifying element 37 may be of a humidifying method in which drainage is performed from the lower part.

The humidifying element 41 is impregnated with water supplied from the upper part of the humidifying element 37, and the air is humidified by blowing air to the moist humidifying element 41. Further, the water not used for humidification in the humidifying element 41 is drained from the lower part of the humidifying element 37.

A sub-drain pan 38 is arranged 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 the first embodiment. The sub-drain pan 38 is provided with a sub-drain pan drain port 42 for flowing the water received by the sub-drain pan 38, and the surface of the sub-drain pan 38 that receives water is collected by the sub-drain pan drain port 42. , A downward slope is provided toward the sub-drain pan drainage port 42. Further, the sub-drain pan drain port 42 is provided at a position behind the humidifying element unit 33 and different from the projection plane in the vertical direction of the humidifying element 37.

FIG. 11 is a diagram showing a sub-drain pan drain port of the ventilation device according to the first embodiment. As shown in FIG. 11, the sub-drain pan drain port 42 may improve moldability by forming the sub-drain pan 38 and the sub-drain pan drain port 42 separately and simplifying the shape of the sub-drain pan 38. ..

Further, the sub-drain pan 38 is surrounded and held from above and below by the humidifying element holding component 39 and the sub-drain pan holding component 40. A hole 43 is provided on the mounting surface of the humidifying element 37 of the humidifying element holding component 39 to allow the water flowing out of 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 air into the sub-drain pan 38 and prevent the water received in the sub-drain pan 38 from being scattered by blowing air. doing.

The humidifying element 37 is placed on the humidifying element holding component 39. The edge portion 39a of the humidifying element holding component 39 is placed on the side wall portion 40a 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. Therefore, the weight-based force of the humidifying element 37 mounted 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, stress is prevented from being applied to the sub-drain pan 38. Therefore, the sub-drain pan 38 does not need to have the strength to withstand the weight of the humidifying element 37, and can be formed of an inexpensive material having a high degree of freedom in shape such as acrylonitrile-butadiene-styrene resin, which is also called ABS resin. ..

FIG. 12 is a front perspective view of the humidifying portion of the ventilation device according to the first embodiment. FIG. 13 is a rear perspective view of the humidifying portion of the ventilation device according to the first embodiment. FIG. 14 is a front perspective view of the humidifying portion of the ventilation device according to the first embodiment. The humidifying portion 8 is provided with vertically extending pillar parts 44a, 44b, 44c, 44d at four corners, and the humidifying element unit 33 has screws of the sub-drain pan holding parts 40 on the pillar parts 44a, 44b, 44c, 44d. It is screwed and fixed by the fastening portion 52. The screws of the screw fastening portion 52 are attached from the humidifying portion maintenance port 45 provided on the front surface of the humidifying portion 8 and tightened in a direction that allows them to be removed. It can be removed. In FIG. 12, the humidifying element unit 33 has four stages and is fixed to the pillar parts 44a, 44b, 44c, 44d, but the number of components of the humidifying element unit 33 is adjusted according to the required amount of humidification. 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 that on the projection plane in the vertical direction of the humidifying element 37. It is connected. The drain pipe 46 is guided to the lower part of the humidifying portion 8 through the drain pipe disposing portion 48, which is behind the humidifying element unit 33 and does not overlap with the vertical projection surface of the humidifying element 37, and drains the drain pan. It is inserted into the mouth 34. As a result, the water that has passed through the drain pipe 46 is directly drained to the outside 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 surface of the humidifying element 37, and is arranged so as to be routed at a position different from the vertical projection surface of the humidifying element 37. Therefore, the drain pipe 46 is not arranged between the humidifying element units 33. Therefore, it is not necessary to provide a space for routing the drain pipe 46 between the humidifying element units 33.

The drainage pipe arrangement portion 48 is separated from the humidifying element 37 by the drainage pipe portion shielding plate 47. As a result, 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 if it occurs, it prevents water from scattering due to ventilation. 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 drainage pipe 46a, the second-stage drainage pipe 46b, the third-stage drainage pipe 46c, and the fourth-stage drainage pipe are installed. Four pipes 46d are connected to the humidifying element unit 33.

FIG. 15 is a perspective view of the confluence portion of the drain pipe below the humidifying portion of the ventilation device according to the first embodiment. The number of drainage pipes 46 corresponding to the number of humidifying element units 33 merges at the lower part of the humidifying portion 8, and the number of drainage pipes 46 is smaller than the number of humidifying element units 33. As a result, by reducing the number of drain pipes 46 inserted into the drain pan drain port 34, it is possible to prevent the drain pan drain port 34 from becoming large.

FIG. 16 is a diagram showing a drainage pipe at a drainage pipe confluence portion of the ventilation device according to the first embodiment. The drainage pipe 46 merges the first-stage drainage pipe 46a and the second-stage drainage pipe 46b, and joins the third-stage drainage pipe 46c and the fourth-stage drainage pipe 46d. The first-stage drainage pipe 46a and the third-stage drainage pipe 46c are provided with an L-shaped drainage pipe 49 on the route. By arranging 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 is increased, and the first-stage humidifying element unit 33 and the second-stage humidifying element unit 33 are combined. The difference in the amount of drainage due to the water head pressure and the difference in the amount of drainage due to the water head pressure between the third-stage humidification element unit 33 and the fourth-stage humidification element unit 33 are suppressed, and the first-stage drainage pipe 46a and the second-stage drainage pipe 46b It is possible to make the amount of drainage of the third-stage drainage pipe 46c and the fourth-stage drainage pipe 46d uniform.

It is only necessary to increase the flow pressure loss of the upper drainage pipe 46 that merges, and the use is not limited to the use of the L-shaped drainage pipe 49. As an example of the method of adjusting the flow path pressure loss of the drain pipe 46, there is a method of reducing the pipe diameter of the upper drain pipe 46.

In the ventilation device 60 according to the first embodiment, when the drip vaporization type humidifying element unit 33 is mounted on the floor-standing type ventilation device 60 that humidifies the outside air and takes in the air into the room, the drainage from the humidifying element unit 33 is discharged. The humidifying element units 33 can be stacked one on top of the other to prevent them from scattering, and by minimizing the floor area for product installation, it is possible to increase the degree of freedom in product installation. do.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1 heat exchange element part, 2 distribution passage part, 3 collecting passage part, 4 indoor intake chamber part, 5 air supply blower part, 6 exhaust blower part, 7 air supply connection passage part, 8 humidification part, 9 circuit part, 10 Casing, 11 Heat exchange element, 12 Indoor air suction surface, 13 Outside air suction surface, 14 Indoor air blowout surface, 15 Outside air blowout surface, 16 Suction surface partition plate, 17 Blowout surface partition plate, 18 Wind upper exhaust distribution passage, 19 Outside air suction port, 20 Wind upper air supply distribution passage, 21 Downwind side exhaust distribution passage, 22 Downwind 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 Air supply blower, 29a Air supply blower motor, 30 Direct expansion coil, 31 Drain pan, 32 Outside air outlet, 33 Humidification element unit, 34 Drain pan drainage Mouth, 35 direct expansion coil piping, 36 piping section shielding plate, 37 humidifying element, 38 sub-drain pan, 39 humidifying element holding part, 39a edge, 40 sub-drain pan holding part, 40a side wall, 41 humidifying element, 42 sub-drain pan drainage Port, 43 holes, 44a, 44b, 44c, 44d Pillar parts, 45 Humidified part maintenance port, 46 drain pipe, 46a 1st stage drain pipe, 46b 2nd stage drain pipe, 46c 3rd stage drain pipe, 46d 4th stage Drain pipe, 47 Drain pipe part shielding plate, 48 Drain pipe arrangement part, 49 L-shaped drain pipe, 50 Distribution passage part partition plate, 51 Collective passage part partition plate, 52 Screw fastening part, 60 Ventilation device.

Claims (4)

An air supply blower that sucks in outdoor air and supplies air supply to the room,
An exhaust blower that sucks in indoor air and exhausts it to the outside
A heat exchange element that exchanges total heat between the outdoor air and the indoor air.
A humidifying element unit having a dripping vaporization type humidifying element for humidifying the supply air and a water receiving portion for receiving drainage from the humidifying element, and a humidifying element unit.
It has a drainage pipe for draining the water received in the water receiving portion.
The humidifying element units are installed in a plurality of layers in the height direction.
The drainage pipe is connected to the water receiving portion at a position different from that on the vertical projection surface of the humidifying element.
The drainage pipe is not arranged between the humidifying element units, and the drainage pipe is not arranged between the humidifying element units.
The drainage pipes connected to the respective water receiving portions are aggregated in a number smaller than the number of the humidifying element units in the middle of the drainage path, and the drainage pipes on the upper stage side of the aggregated drainage pipes. Is a ventilation device characterized by being provided with a bent portion that increases pressure loss in the flow path. An air supply blower that sucks in outdoor air and supplies air supply to the room,
An exhaust blower that sucks in indoor air and exhausts it to the outside
A heat exchange element that exchanges total heat between the outdoor air and the indoor air.
A humidifying element unit having a dripping vaporization type humidifying element for humidifying the supply air and a water receiving portion for receiving drainage from the humidifying element, and a humidifying element unit.
It has a drainage pipe for draining the water received in the water receiving portion.
The humidifying element units are installed in a plurality of layers in the height direction.
The drainage pipe is connected to the water receiving portion at a position different from that on the vertical projection surface of the humidifying element.
The drainage pipe is not arranged between the humidifying element units, and the drainage pipe is not arranged between the humidifying element units.
The drainage pipes connected to the respective water receiving portions are aggregated in a number smaller than the number of the humidifying element units in the middle of the drainage route, and the drainage pipe on the upper stage side of the aggregated drainage pipes is , ventilation device you wherein the pipe diameter is smaller than the drain pipe of the lower side. The ventilation device according to claim 1 or 2 , further comprising a drainage pipe portion shielding plate that separates the drainage pipe and the humidifying element. In the water receiving portion, a drainage port component which is a separate component from the water receiving portion is installed at the lower part of a hole penetrating vertically.
The ventilation device according to claim 1 or 2 , wherein the drain pipe is connected to the drain port component.

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