JP4391099B2 - Heat exchange ventilator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat exchange ventilator that performs ventilation by supply and exhaust while exchanging heat between supply and exhaust flows through a built-in heat exchanger.
[0002]
[Prior art]
Many of the above heat exchange ventilators are installed in spaces such as the back of the ceiling, have built-in heat exchangers that exchange air-to-air heat, and perform ventilation by simultaneous supply and exhaust while performing heat exchange. Therefore, it is possible to perform ventilation with little fluctuation of the state quantity in the room (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-161743
[Problems to be solved by the invention]
A conventional heat exchange ventilator includes a casing that divides an air supply passage and an exhaust air passage inside, a decorative panel that is provided at a lower portion of the casing and is arranged on a ceiling surface so as to communicate the inside of the casing indoors, and a casing The exhaust side air outlet and the air supply side suction port respectively connected to the ducts that are open to the first surface and connected to the duct, and the second surface with respect to the first surface of the casing, the air supply air in the casing An extension duct connection port that communicates with one of the road and the exhaust air passage, an extension duct connected to the extension duct connection port, and a ventilation unit that is provided at the tip of the extension duct and disposed on the ceiling surface It is a configuration.
[0005]
In this heat exchanging ventilator, the exhaust duct and the intake duct are close to each other, so that there is a problem that the supply and exhaust are short-circuited easily and the ventilation efficiency is lowered. Further, in the construction of the main body and the decorative panel, it is actually very difficult to construct the dimensional position of the hanging bracket and the opening dimension position of the ceiling material with high dimensional accuracy.
[0006]
The present invention has been made to solve the above-described conventional problems, and the problem is to obtain a heat exchange ventilator with good ventilation efficiency. It is to obtain and to promote the expansion of its functions.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a main body casing in which a supply air passage for taking outdoor air into the room and an exhaust air passage for exhausting indoor air to the outside are formed in a box shape. In the main casing, a part of the exhaust ventilation path and a part of the air supply ventilation path are formed by a primary passage and a secondary passage, respectively. A heat exchanger that exchanges heat between fluids flowing through the next passage is built in, a blower that forms a supply airflow from the inlet end to the outlet end of the supply air passage is provided in the supply air passage, and exhaust is provided in the exhaust passage. About a heat exchange ventilator provided with a blower that forms an exhaust flow from the inlet end to the outlet end of the ventilation path and enables continuous heat exchange between the supply and exhaust flows, an indoor air inlet on the lower surface of the main body casing Provide an exhaust suction port at the end, and A decorative panel that can be ventilated is provided on the ceiling surface, an exhaust outlet that is an outlet end of the exhaust ventilation path is provided on one surface of the peripheral side surface of the main body casing, and an air supply outlet that is an outlet end of the air supply ventilation path is Further, means provided on one side surface of the main body casing facing the exhaust air outlet and provided on one side surface of the main body casing adjacent to the exhaust air outlet is adopted as the outside air suction port which is the inlet end of the air supply passage.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 is a plan view of the heat exchange ventilator according to the present embodiment, FIG. 2 is a view as seen from the arrow A in FIG. 1, FIG. 3 is a view as seen from the arrow B in FIG. 1, and FIGS. FIG. 7 is a side view showing a construction example. As shown in FIG. 1, in this heat exchange ventilator, a heat exchanger 1 that performs air-to-air heat exchange is built in a main body casing 2 that is configured in a hexahedron box shape. The room is ventilated by exhaust. In this heat exchange ventilator, a part of the path is constituted by a secondary passage of the heat exchanger 1, and an air supply ventilation path 4 through which an air supply air flowing from the outside to the room is formed by the air supply blower 3, and the path Is formed of a primary passage of the heat exchanger 1, and an exhaust ventilation path 6 through which an exhaust flow from the room to the outside, formed by the exhaust blower 5, is independently defined over the entire path.
[0010]
Two heat exchangers 1 are arranged in a substantially central portion of the main casing 2 and are each configured as a stacked type hexahedron. And it is built in such a way that the ridges of each other are abutted in a state where the layers for heat exchange are stacked in the vertical direction, and can be inserted and removed in the vertical direction from the inspection lid provided on the lower surface of the main body casing 2 Yes. As a result, the primary passage through which the exhaust flow of each heat exchanger 1 passes and the secondary passage through which the supply airflow passes are obliquely intersected inside.
[0011]
A supply air blower 3 and an exhaust air blower 5 are respectively assembled to the left and right of the heat exchanger 1 of the main casing 2. The suction port of the exhaust blower 5 is directed to the heat exchanger 1 side, and the blower outlet faces the exhaust blower outlet 7 which is the outlet end of the exhaust ventilation path 6. The exhaust outlet 7 is provided on one surface of the peripheral side surface of the main casing 2, and a connection port part 8 that can be connected to a duct is attached to the exhaust outlet 7. The intake port of the air supply blower 3 is directed toward the heat exchanger 1, and the air outlet faces the air supply air outlet 9 that is the outlet end of the air supply passage 4. The supply air outlet 9 is provided on one side surface of the main body casing 2 facing the exhaust air outlet 7, and a connection port part 8 that can be connected to a duct is attached thereto.
[0012]
Exhaust air inlets 10 that are the inlet ends of the exhaust air passages 6 are provided on both sides of the lower surface of the main body casing 2 between the air supply blower 3 and the heat exchanger 1. Air is blown out from the exhaust blower 5 to the exhaust outlet 7 through the primary passages of the heat exchangers 1 and blown out through the duct 11. An outside air inlet 12 that is an inlet end of the air supply passage 4 is provided on one side of the main body casing 2 facing the exhaust blower 5 and on one side facing the exhaust outlet 7. The outdoor air sucked through the duct 11 passes through the gap between the exhaust blower 5 and the main body casing 2, is divided into the secondary passages of the heat exchangers 1, exits the heat exchangers 1, and joins the air blower. 3 and is blown out into the room through the duct 11 from the supply air outlet 9 (see FIGS. 1 and 3).
[0013]
The main body casing 2 is suspended and fixed to the space behind the ceiling by anchor bolts by suspension fittings 13 provided at the four corners near the top plate. A ventilation panel 14 is attached to the ceiling surface of the main body casing 2 corresponding to the central portion of the lower surface where the exhaust air inlet 10 is located, and the decorative panel 14 and the exhaust air inlet 10 are in communication with each other so as to allow ventilation. If the decorative panel 14 is opened, the heat exchanger 1 can be attached and detached, and maintenance of the heat exchanger 1 and the filter can be performed.
[0014]
This heat exchange ventilator can take the installation form as shown in FIGS. 4-6, for example. That is, in FIG. 4, the outside air inlet 12 faces one wall surface and the exhaust air outlet 7 faces the wall surface adjacent to this wall surface in the ceiling back space at one corner of the flat rectangular room. Another outside air inlet 12 is closed by a closing plate 15. A connecting port component 8 is attached to the open outside air inlet 12 and communicates with the outside through the duct 11 through the facing wall. The exhaust outlet 7 passes through a wall facing the exhaust outlet 7 and communicates with the outside through a duct 11. The supply air outlet 9 is communicated with the room through a duct 11 at a suitable place such as another corner of the room by a blow grill 16 or the like. The exhaust inlet 10 is communicated with the room by a decorative panel 14 mounted on the ceiling surface.
[0015]
When the exhaust blower 5 and the supply blower 3 are operated, the indoor air is sucked from the exhaust suction port 10 through the decorative panel 14, and is exhausted to the outside through the exhaust ventilation path 6 through the duct 11 from the exhaust blowout port 7. . At the same time, outdoor air is sucked from the outside air inlet 12 through the duct 11, and is supplied into the room through the air supply passage 4 from the supply air outlet 9 through the duct 11. During this time, the heat exchanger 1 performs continuous heat exchange between the supply and exhaust flows.
[0016]
Thus, this heat exchange ventilator can be installed at the corner of the room, and the design of the indoor side ceiling surface is improved. Since the heat exchanger 1 can also be attached and detached by a vertical operation, maintenance can be easily performed even if it is installed in the corner of the room. In addition, since supply and exhaust are performed from different wall surfaces, a supply and exhaust short circuit does not occur and ventilation efficiency is good.
[0017]
In the installation form of FIG. 5, the outside air inlet 12 on one side facing the exhaust outlet 7 is opened, and the outside air inlet 12 on the side adjacent to the outlet 7 is closed. The opened outside air inlet 12 is communicated to the outside through the duct 11. In this installation mode, the direction of air supply / exhaust can be reversed, and a short circuit of air supply / exhaust is less likely to occur.
[0018]
In the installation form of FIG. 6, the two-way outside air inlets 12 are both communicated with the outside through the small-diameter duct 11. Accordingly, the duct 11 for supplying air has a small diameter, and the hood attached to the outdoor opening may be small, so that the design of the outer wall is not impaired and the construction cost is reduced. Since the outside air suction ports 12 having different directions are provided in this way, even if there is a wall surface that cannot be seen by the straight pipe type duct 11 outside the room, either one of them faces the outside by the straight pipe type duct 11. Therefore, the installation conditions are reduced and the construction becomes easy.
[0019]
As shown in FIG. 7, the decorative panel 14 can be attached to the ceiling surface while being separated from the exhaust air inlet 10 of the main casing 2. By adopting this construction form, the decorative panel 14 and the main casing 2 are separated even if the panel mounting opening 17 opened in the ceiling material is slightly deviated from the suspension fixing position of the main casing 2. It can be mounted with good appearance, and the design of the ceiling surface is improved.
[0020]
Embodiment 2. FIG.
The present embodiment shown in FIG. 8 is such that the air supply blower 3 of the heat exchange ventilator shown in the first embodiment is separated from the main body casing 2 and independent, and the configuration other than the configuration related to the air supply blower 3 is implemented. It is the same as that of Form 1. Therefore, the same reference numerals as those of the first embodiment are used for the same parts as those of the first embodiment, and description thereof will be omitted.
[0021]
In the heat exchange ventilator of the present embodiment, the outlet end 18 of the air supply ventilation path 4 is provided on one side surface of the main body casing 2 facing the outside air inlet 12. An independent blowout having an air supply blower 3 connected to the outlet end 18 of the air supply ventilation path 4 by a duct 11 and forming an air supply flow from the outside air inlet 12 of the air supply ventilation path 4 toward the outlet end 18. A grill 19 is provided, and is configured to supply air into the room from the blow-out grill 19. The blow-out grill 19 can be arranged at any position in the room by the duct 11. By adopting this configuration, it is possible to disperse the mass of the heat exchange ventilator, which facilitates handling during construction and reduces construction costs. Other configurations and functions are the same as those of the first embodiment.
[0022]
Embodiment 3 FIG.
The present embodiment shown in FIG. 9 is obtained by providing a multipurpose case 20 in the heat exchange ventilator shown in the second embodiment, and is the same as that of the second embodiment except for the configuration related to the multipurpose case 20. . Therefore, the same reference numerals as those of the second embodiment are used for the same parts as those of the second embodiment, and description thereof will be omitted.
[0023]
In the heat exchange ventilator of the present embodiment, the air quality of a humidifier, a high-performance air filter, a dehumidifier, or the like is improved between the blowout grill 19 and the outlet end 18 of the air supply passage 4 of the main body casing 2. A multipurpose case 20 on which a device to be mounted can be mounted is interposed. Although the pressure loss related to the supply air varies depending on the equipment mounted on the multipurpose case 20, the supply air blower 3 is independent from the main body casing 2 side, so its capacity can be adjusted freely and the ventilation air volume can be secured. Can do. Thereby, it becomes possible to improve the air quality of the air supply air supplied to the room as necessary, and a comfortable ventilation atmosphere can be obtained. Other configurations and functions are the same as those of the second embodiment.
[0024]
Embodiment 4 FIG.
The present embodiment shown in FIG. 10 and FIG. 11 is provided with the air supply outlet 9 of the heat exchange ventilator shown in the first embodiment in two directions, except for the configuration related to the air supply outlet 9. The same as in the first embodiment. Therefore, the same reference numerals as those of the first embodiment are used for the same parts as those of the first embodiment, and description thereof will be omitted.
[0025]
In the heat exchange ventilator of the present embodiment, the air outlet side of the air supply blower 3 forming the air supply air is branched into the air supply air outlet 9 side and the decorative panel 14 side. One of the two air supply outlets 9 and 21 can be closed, or both can be opened. Thereby, for example, the air supply can be supplied to the air conditioner as it is, and it can be made to function independently as a ventilator, which is adaptable. Other configurations and functions are the same as those of the first embodiment.
[0026]
【The invention's effect】
According to the present invention, a heat exchange ventilator having good ventilation efficiency and good workability can be obtained.
[0027]
In addition, according to another invention, a heat exchange ventilator that has good workability and can promote expansion of functions can be obtained.
[Brief description of the drawings]
FIG. 1 is a plan view showing a heat exchange ventilator according to a first embodiment.
FIG. 2 is a perspective view taken along arrow A in FIG.
FIG. 3 is a view taken in the direction of arrow B in FIG. 1;
FIG. 4 is a plan view showing an installation form of the heat exchange ventilator according to the first embodiment.
FIG. 5 is a plan view showing an installation form of the heat exchange ventilator according to the first embodiment.
FIG. 6 is a plan view showing an installation form of the heat exchange ventilation apparatus of the first embodiment.
FIG. 7 is a side view showing a construction example of the heat exchange ventilator according to the first embodiment.
FIG. 8 is a plan view showing a heat exchange ventilator according to a second embodiment.
FIG. 9 is a plan view showing a heat exchange ventilator according to a third embodiment.
FIG. 10 is a side perspective view showing the heat exchange ventilation apparatus of the fourth embodiment.
FIG. 11 is a side view showing the heat exchange ventilator according to the fourth embodiment from another side.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Heat exchanger, 2 Main body casing, 3 Supply air blower, 4 Supply air ventilation path, 5 Exhaust air blower, 6 Exhaust ventilation path, 7 Exhaust air outlet, 9 Supply air outlet, 10 Exhaust air inlet, 12 Outside air inlet, 14 decorative panels, 18 outlet end, 19 blowout grill, 20 multipurpose case, 21 air supply blowout. Ten

Claims (3)

The air supply ventilation path for taking outdoor air into the room and the exhaust ventilation path for exhausting indoor air to the outside of the room are formed in a box-shaped body casing so as to be independent from each other over the entire path. In this main body casing, a part of the exhaust ventilation path and a part of the air supply ventilation path are respectively formed by a primary passage and a secondary passage, and heat is generated between the fluid flowing through the primary passage and the secondary passage. A heat exchanger for exchanging is incorporated, the air supply passage is provided with a blower that forms a supply air flow from the inlet end to the outlet end of the air supply passage, and the exhaust passage is provided with an inlet of the exhaust passage A heat exchange ventilator provided with a blower that forms an exhaust flow from the end toward the outlet end, enabling continuous heat exchange between the supply and exhaust flows,
Provided on the lower surface of the main casing is an exhaust air inlet that is an inlet end of indoor air, and provided a decorative panel on the ceiling surface that communicates with the exhaust inlet, and an exhaust outlet that is an outlet end of the exhaust air passage Is provided on one surface of the peripheral side surface of the main body casing, and an air supply outlet which is an outlet end of the air supply ventilation path is provided on one side surface of the main body casing facing the exhaust air outlet. The outside air suction port which is an inlet end is a heat exchange ventilator provided on one side surface of the main body casing adjacent to the exhaust outlet.   It is a heat exchange ventilator of Claim 1, Comprising: The heat exchange ventilator which provided the external air suction inlet also in the one side of the supply air blower outlet. The heat exchange ventilator according to claim 1 or 2 , wherein a blower outlet side of a blower forming a supply airflow is branched into a supply air outlet side and a decorative panel side, and the supply air outlet and the makeup Heat exchange ventilator that can supply air from both sides.

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