WO2019239572A1

WO2019239572A1 - Ventilation device

Info

Publication number: WO2019239572A1
Application number: PCT/JP2018/022855
Authority: WO
Inventors: 諒 ▲高▼津; 明利島▲崎▼
Original assignee: 三菱電機株式会社
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-12-19
Also published as: JP6918236B2; JPWO2019239572A1

Abstract

A ventilation device (30), which creates an air supply flow from air taken in from outside and supplies same to the inside, comprises: a humidification section (17) in which a plurality of humidification units (16), each having a humidifier (9) that humidifies the air supply flow and a humidifier base (10) comprising a bottom face on which the humidifier (9) is mounted, are layered vertically; a hollow column-shaped drain guide (11) that covers each of the plurality of humidification units (16) arranged vertically from a first direction perpendicular to the flow direction of the air supply flow and parallel to the horizontal direction, and that positions a plurality of the humidifiers (9) in the first direction; and a drain pan (12) that is disposed under the drain guide (11). The portion of the drain guide (11) in contact with each of the plurality of humidifiers (9) is opened. The ends of each of a plurality of the humidifier bases (10) are inserted into the drain guide (11) and do not contact the internal wall face of the drain guide (11) in the interior space of the drain guide (11).

Description

Ventilation equipment

The present invention relates to a ventilation device provided with a humidifier.

A ventilator equipped with a humidifier must have a drainage structure that drains the drain to the outside of the machine. In particular, since a floor-standing type ventilation device has a larger processing air volume than a ceiling-embedded type, a plurality of humidifiers are mounted. However, the humidifiers are often stacked due to restrictions on external dimensions.

In the invention disclosed in Patent Document 1, a humidifier as a drain source is arranged above the heat exchanger, and a plurality of draining plates are arranged below the heat exchanger. Water is introduced to the lowermost drain pan with a plurality of draining plates, and edge cutting is performed with each draining plate to prevent the drain from flowing backward when the amount of drain generated by the humidifier is large.

JP-A-8-121823

In the invention disclosed in Patent Document 1, a plurality of draining plates are arranged independently for edge cutting, and are shifted up and down at the edge cutting part. Therefore, the invention disclosed in Patent Document 1 requires a space in the vertical direction when arranging a plurality of draining plates. Therefore, in the invention disclosed in Patent Document 1, when the humidifiers are stacked one above the other, the space that needs to be secured in the ventilation device becomes large. Therefore, in the invention disclosed in Patent Document 1, it is difficult to achieve both drainage of the drain generated in the humidifier to the outside of the machine and space saving.

The present invention has been made in view of the above, and it is an object of the present invention to obtain a ventilator that achieves both drainage of the drain generated in the humidifier to the outside and space saving.

In order to solve the above-described problems and achieve the object, the present invention is a ventilator that supplies air taken in from the outside as a supply airflow to the room, and includes a humidifier that humidifies the supply airflow, and a humidifier. A humidifying unit in which a plurality of humidifying units each having a humidifier base having a bottom surface portion to be stacked are vertically stacked, and each side surface of the plurality of humidifying units arranged in the vertical direction is orthogonal to the ventilation direction of the supply airflow and A hollow column-shaped drain guide that covers from a first direction parallel to the horizontal direction and positions a plurality of humidifiers in the first direction, and a drain pan installed below the drain guide. The drain guide has an opening in contact with each of the plurality of humidifiers, and each end of each of the plurality of humidifier bases is inserted into the drain guide, and the inner wall surface of the drain guide in the space inside the drain guide. And non-contact.

The ventilator according to the present invention has an effect that it is possible to achieve both drainage of the drain generated by the humidifier to the outside of the machine and space saving.

The schematic diagram which shows the structure of the ventilation apparatus which concerns on Embodiment 1 of this invention. Top view of humidification section of ventilation device according to Embodiment 1 Front view of humidification section of ventilating apparatus according to Embodiment 1 The figure which shows the drainage path | route of the ventilator which concerns on Embodiment 1. The figure which shows the drainage path of the ventilator which concerns on Embodiment 2 of this invention

Hereinafter, a ventilating apparatus 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 schematic diagram showing a configuration of a ventilation device according to Embodiment 1 of the present invention. FIG. 2 is a top view of the humidifying unit of the ventilation device according to Embodiment 1. FIG. FIG. 3 is a front view of the humidifying unit of the ventilation device according to Embodiment 1. FIG. The ventilation device 30 according to the first embodiment includes a main body casing 1 in which an air supply passage and an exhaust air passage are formed, an exhaust fan 2 that forms an exhaust flow, and an air supply fan 3 that forms a supply air flow. And a total heat exchanger 4 that continuously performs total heat exchange between the supply air flow and the exhaust flow, and a humidification unit 17 that includes a plurality of humidification units 16. In FIG. 1, the direction of ventilation of the air supply air in the humidifying unit 17 is indicated by an arrow A. The humidification unit 16 includes a humidifier 9 that humidifies the supplied airflow after heat exchange, and a humidifier base 10 for arranging the humidifier 9. Further, the humidifying unit 17 supplies water to the drain guide 11 and the humidifier 9 that cover each side surface of the plurality of humidifying units 16 from a first direction that is orthogonal to the ventilation direction of the supply airflow and parallel to the horizontal direction. And a pressure reducing electromagnetic valve 13. In FIG. 1, among the drain guides 11 arranged on both side surfaces of the plurality of humidifying units 16, the drain guide 11 on the left-hand side when viewed along the ventilation direction is not shown, thereby providing a humidifier. 9 appears in the figure. The drain guide 11 is installed to be engaged with the humidifier base 10 and positions the humidifier unit in the first direction. The drain pan 12 is installed in the lower part of the main casing 1. The drain guide 11 has a hollow column shape.

The main body casing 1 is provided with a supply air outlet 6 and an exhaust air inlet 8 leading to the room, and a supply air inlet 7 and an exhaust air outlet 5 leading to the outside. A supply air passage inside the main body casing 1 allows the supply air inlet 7 and the supply air outlet 6 to communicate with each other. The exhaust air passage inside the main casing 1 allows the exhaust air inlet 8 and the exhaust air outlet 5 to communicate with each other.

The air supply blower 3 is incorporated in the air supply air passage. The exhaust fan 2 is incorporated in the exhaust air passage. The total heat exchanger 4 is disposed between the supply air passage and the exhaust air passage. That is, the total heat exchanger 4 continuously performs total heat exchange between the outdoor air that is the supply airflow and the indoor air that is the exhaust flow, and the outdoor air is used as supply air and the indoor air is used as exhaust air. .

In the total heat exchanger 4, the primary side air passage through which the exhaust air flow passes and the secondary side air passage through which the supply air flow passes vertically intersect. Thereby, total heat is exchanged between the supply airflow and the exhaust flow, and heat exchange ventilation is performed. The heat-exchanged airflow is humidified by passing through the humidifier 9, and humidified air is supplied into the room.

The humidifier 9 is supplied with water from the pressure reducing solenoid valve 13 via a water supply tube (not shown), and the drain 15 that has not been used for humidifying the supplied airflow is drained to the humidifier base 10 and then has a hollow columnar shape. It passes through the drain guide 11. A drain 15 from each stage of the humidifier 9 flows into the drain guide 11 through the humidifier base 10, and all the drain 15 is drained from the lower end of the drain guide 11 to the drain pan 12.

The drain 15 collected in the drain pan 12 is drained to the outside from the drain port 20 assembled in the drain pan 12.

FIG. 2 is a top view of the humidifying unit of the ventilation device according to the first embodiment. FIG. 3 is a front view of the humidifying unit of the ventilation device according to Embodiment 1. FIG. The ventilator 30 according to the first embodiment supports the humidifier 9 with the humidifier base 10, receives the drain 15 generated by the humidifier 9 with the humidifier base 10, and conducts water to the drain pan 12 through the drain guide 11. . Therefore, the number of parts can be reduced as compared with a ventilator that supports the humidifier with the humidifier spacer, receives the drain generated by the humidifier with the sub-drain pan, and conducts water from each sub-drain pan to the drain pan with the drain tube.

Also, since the drain guide 11 serves as a drainage tube, it is not necessary to retain the drain 15 with the humidifier base 10. Therefore, the height dimension of the humidifier base 10 which is a member that receives the drain 15 generated in the humidifier 9 can be reduced to one sheet metal.

Since the drain guide 11 can reduce the dimension in the first direction to the minimum dimension that can realize edge cutting with the end of the humidifier base 10, the ventilator 30 according to the first embodiment uses the humidifier spacer. It can be downsized compared to the ventilation device provided. Here, the edge cutting means that the inner wall surface of the drain guide 11 and the end of the humidifier base 10 are not in contact with each other, and the drain 15 stays between the drain guide 11 and the humidifier base 10 due to surface tension. It means nothing.

The flow path area of the drain 15 inside the drain guide 11 needs to be expanded or contracted according to the amount of drainage, but the dimension in the first direction is fixed and expanded in the ventilation direction instead of the depth direction of the humidifier 9. The drainage capacity can be adjusted. Therefore, the ventilation device 30 according to Embodiment 1 can realize a waterproof structure that suppresses the increase in size.

Further, since the drain guide 11 can be fixed with one touch by being hooked on the humidifier base 10, it is easy to remove, and the main body casing 1 can be handled as a single component by combining the drain guide 11. At the same time as 1 is removed, the drain guide 11 can also be removed.

FIG. 4 is a diagram illustrating a drainage path of the ventilation device according to the first embodiment. FIG. 4 shows a state in which the drain 15 is discharged from the humidifier 9 disposed on the humidifier base 10 and drained to the lower stage by the drain guide 11. In FIG. 4, the direction of ventilation of the air supply air in the humidification unit 16 is indicated by an arrow A. The humidifier base 10 includes a humidifier rail 22 that guides the humidifier 9 when the humidifier 9 is slid in and removed from the first direction. The humidifier rail 22 has a rib shape that rises from the bottom surface portion 10 a that supports the humidifier 9 of the humidifier base 10. The drain 15 discharged from the humidifier 9 flows in the sliding direction of the humidifier 9 along the humidifier rail 22. Since the humidifier rail 22 cuts the drain 15 in the drain guide 11 and flows downstream through the drain guide 11, the flow of the drain 15 is unidirectional and does not generate a reverse flow. Does not flow.

The bottom surface portion 10a of the humidifier base 10 may be flat, but may have an inclination in which an end portion covered with the drain guide 11 is lowered. By providing the bottom surface 10 a of the humidifier base 10 with an inclination that the end covered with the drain guide 11 is lowered, the water in the humidifier base 10 easily flows into the drain guide 11.

FIG. 4 shows a state in which the drain 15 that has flowed in the front direction on the paper surface is collected by the drain guide 11, but depending on the gradient when the ventilation device 30 is installed, the drain 15 in the back direction on the paper surface. Also occurs. Since the ventilator 30 according to Embodiment 1 has a structure in which both ends of the humidifier base 10 are covered with the drain guide 11, the drain 15 is collected in any one of the drain guides 11 in any installation situation. Is done.

Further, at the portion of the humidifier base 10 where the edge is cut, drainage is performed by concentrating the downstream water channel by the notch, or by destroying the surface tension by bringing the drain guide 11 and the humidifier base 10 into contact with each other. Therefore, it is possible to adopt a structure that matches the amount of drainage and the airway structure.

Furthermore, the shape of the drain guide 11 does not need to be a complete cylindrical shape as long as the water guide in the drain guide 11 is secured by surface contact with the humidifier 9. Therefore, the drain guide 11 can also be formed by bending a sheet metal part.

By adjusting the dimensional relationship between the humidifier 9 and the drain guide 11, the arrangement of the humidifier 9 can be freely designed without increasing the number of parts.

As described above, since the ventilator 30 according to Embodiment 1 has the drain guide 11 disposed in a direction perpendicular to the ventilation direction of the humidifiers 9 that are stacked in multiple stages, the humidifier 9 is a drop vaporization type. Regardless of whether it is a moisture permeable membrane type or not, drainage 15 due to drainage or water leakage from the humidifier 9 can be guided outside the apparatus without requiring a drainage tube or a dedicated water collecting structure. The ventilation device 30 according to the first embodiment can be reduced in size by eliminating the need for a water collection structure and improving the degree of freedom in space design, and can improve the quality of water leakage by the edge cutting structure by the drain guide 11. it can.

Even when the moisture permeable membrane type humidifier 9 is mounted, the drain tube connected to the pressure reducing solenoid valve 13 does not need to pass to the drain port 20 leading to the outside of the machine, and can be drained to each stage. is there. Therefore, it is possible to complete each stage stacked in a plurality of stages.

In the ventilator 30 according to the first embodiment, the humidifier base 10 serving as a base that is indispensable for arranging the humidifier 9 is provided with the humidifier rails 22 necessary for maintaining the humidifier 9. Therefore, the drain 15 flowing downward from the drip vaporization type humidifier 9 can be guided to the drain guide 11. By having the drain 15 along the humidifier rail 22, depending on the installation gradient of the ventilation device 30, the drain 15 flows to either the left or right as viewed from the direction of ventilation of the supply airflow, but the end face of the humidifier base 10 Since the edge is cut inside the drain guide 11, the drain guide 11 can be drained to the lower stage through the drain 15.

Since the drain guide 11 has a cylindrical shape and an opening is opened only in a portion that receives the end face of the humidifier base 10, if the drain 15 from the humidifier base 10 can be reliably edged in the drain guide 11, a reverse flow is generated. Drainage can be performed without any problems. Further, since one side of the drain guide 11 is always in contact with the side surface of the humidifier 9, the arrangement of the humidifier 9 can be fixed by sandwiching the drain guide 11 from the maintenance side and the non-maintenance side that are both ends of the humidifier base 10. It becomes possible.

Since the drain guide 11 and the humidifier base 10 have a width and a depth dimension that require a minimum space that can be trimmed, the ventilation device 30 can be downsized by reducing the depth direction in addition to eliminating the need for a sub-drain pan. Is possible. The drain guide 11 can be easily removed from the maintenance side, and the humidifier 9 can be accessed in two steps even if it is not combined with one step by combining with the maintenance cover. There is no reduction. Furthermore, since the drain guide 11 is disposed between the side casing 14 of the ventilation device 30 and the humidifying portion 17, it is possible to cut off the edge of the side casing 14 of the ventilation device 30. It is possible to improve the performance of preventing water leakage without providing a curtain structure by sticking the sheet on one surface or a structure for draining through each drainage tube at each stage.

As described above, the ventilator 30 according to the first embodiment can not only reliably collect the drain 15 generated in the humidifier 9 in any drainage state and guide water to the outside of the machine, but also has a drainage structure. The space occupied by can be reduced and the size can be reduced.

Embodiment 2. FIG.
FIG. 5 is a diagram illustrating a drainage path of the ventilation device according to Embodiment 2 of the present invention. The ventilator 30 according to the second embodiment is implemented in that the drain 15 is provided on the humidifier base 10 on the assumption that the drain 15 is scattered to the secondary side of the humidifier 9 due to the influence of the air supply. This is different from the ventilation device 30 according to the first embodiment. In FIG. 5, an arrow A indicates the ventilation direction of the air supply air in the humidification unit 16. The drain return 23 is formed by expanding the humidifier base 10 in the ventilation direction. In the ventilator 30 according to the second embodiment, the drain return 23 extends from the upper end of the humidifier rail 22 to the downstream side in the ventilation direction of the supply airflow.

The drain 15 scattered from the humidifier 9 adheres to the drain return 23 and becomes water droplets, and returns to the humidifier base 10 along the inclination of the drain return 23. The drain 15 collected on the humidifier base 10 follows the same water channel as the ventilator 30 according to the first embodiment and is drained outside the apparatus.

The drain return 23 is formed by giving an inclination to a part of the humidifier base 10, and the inclination angle and size are designed in accordance with the assumed drainage amount and the wind speed of the supply air flow blown out through the humidifier 9. The Since the drain return 23 is formed by enlarging the humidifier base 10 in the ventilation direction in which the air path exists, it is not necessary to expand the humidifier base 10 in a direction intersecting with the air flow. Therefore, it is not necessary to enlarge the outer shape of the ventilation device 30 when the drain return 23 is provided.

The ventilator 30 according to Embodiment 2 can collect the drain 15 scattered on the secondary side and discharge it to the outside of the apparatus.

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. It is also possible to omit or change the part.

1 body casing, 2 exhaust fan, 3 air supply fan, 4 total heat exchanger, 5 exhaust air outlet, 6 air supply outlet, 7 air supply inlet, 8 exhaust air inlet, 9 humidifier, 10 humidifier Base, 10a bottom part, 11 drain guide, 12 drain pan, 13 decompression solenoid valve, 14 side casing, 15 drain, 16 humidification unit, 17 humidification part, 20 drain, 22 humidifier rail, 23 drain return, 30 ventilator.

Claims

It is a ventilator that supplies air taken in from the outside to the room as a supply airflow,
A humidifying unit in which a plurality of humidifying units are vertically stacked, each of which includes a humidifier that humidifies the air supply air, and a humidifier base having a bottom surface portion on which the humidifier is placed;
The side surfaces of the plurality of humidifying units arranged in the vertical direction are covered from a first direction orthogonal to the ventilation direction of the air supply air flow and parallel to the horizontal direction, and the plurality of humidifiers are positioned in the first direction. Hollow column-shaped drain guide to
A drain pan installed below the drain guide;
The drain guide has an opening in contact with each of the plurality of humidifiers,
An end of each of the plurality of humidifier bases is inserted into the drain guide, and is not in contact with the inner wall surface of the drain guide in the space inside the drain guide.
The said humidifier base is a rib shape which stands | starts up from the said bottom face part, Comprising: The humidifier rail which guides the slide movement of the said humidifier along the said 1st direction is provided. Ventilation device.
The ventilator according to claim 1 or 2, wherein the humidifier base is provided with a drain return protruding from the bottom surface portion on the downstream side of the supply airflow in the ventilation direction.
The ventilator according to any one of claims 1 to 3, wherein the bottom portion has an inclination in which an end portion in the first direction becomes lower.