JP2006112729A - Ventilation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation device capable of satisfactorily discharging a drain caused by droplets of water contained in a supply air flow out of the device. <P>SOLUTION: This ventilation device comprises a supply air duct 3 connecting the outside and inside of a building through an outdoor suction port 1 and an indoor outlet port 2, an exhaust air duct 6 connecting the inside and the outside of the building through an indoor suction port 4 and an outdoor outlet port 5, a blower 8 forming a supply air flow in the supply air duct 3, a blower 9 forming an exhaust air flow in the exhaust air duct 6, and a heat exchanger 10 performing heat exchange between the air flows carried in the supply air duct 3 and in the exhaust air duct 6. This device further comprises a drain treatment part having an air filter 11 and a draining port for discharging the drain generated in an inlet part of the heat exchanger 10, into which the supply air flow runs, to the exhaust air duct 6 side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a ventilator that takes in outside air and exhausts indoor air while exchanging heat with a heat exchanger.

  In a ventilator that takes in outside air and exhausts indoor air while continuously exchanging heat with a heat exchanger, dew formation occurs in the fluid passage of the heat exchanger. This is disclosed in Patent Document 1.

JP 2000-356381 A

  In this type of ventilator, condensation tends to occur in the fluid passage through which the exhaust flow of the heat exchanger passes. The ventilator disclosed in Patent Document 1 receives this by a dew tray attached to the lower part of the main body and prevents the indoor floor surface from being soiled. However, mist-like water droplets contained in the air supply air may aggregate and drainage may occur in the air supply passage. When the house is used for continuous ventilation, a large amount of drainage is generated in the air supply ventilation path during drizzle or when fog occurs. The heat exchanger is provided with an air filter on the inlet side of the fluid passage. Water splashes are trapped in the air filter, wet the air filter, flow down, and collect in the air supply ventilation path of the part. As a result, the problem of dripping out of the apparatus through the gaps between the structures has surfaced.

  The present invention has been made in order to solve the above-described problems, and the object of the present invention is to provide ventilation suitable for regular ventilation that allows drainage due to water droplets contained in the supply airflow to be drained well outside the apparatus. It is to obtain a device, and to obtain a ventilator capable of comprehensively treating drainage that is generally generated.

  In order to solve the above-described problems, the present invention provides an air supply passage that connects the outside of a building and the room through an outdoor air inlet and an indoor outlet, and an exhaust that connects the room and the outside of the building through the indoor air inlet and the outdoor outlet. A blower that forms a supply air flow from the outdoor suction port to the indoor outlet in the ventilation passage, a blower that forms an exhaust flow from the indoor suction port to the outdoor outlet in the exhaust ventilation passage, and an air supply ventilation Concerning a ventilator comprising a part of the passage and the exhaust ventilation passage and having a heat exchanger for exchanging heat between the airflows flowing through the two, the drain generated at the inlet portion into which the supply airflow of the heat exchanger flows A means for providing a waste water treatment part for draining the air to the exhaust ventilation path side is adopted.

  According to the present invention, even when a large amount of water droplets are included in the air supply flow that flows through the air supply ventilation path during operation such as drizzle or when fog occurs, it occurs at the inlet portion where the air supply flow of the heat exchanger flows. The drainage is drained to the exhaust ventilation path side by the drainage treatment unit, and drained outside the apparatus together with the exhaust flow. Therefore, it is possible to solve the problem that water drops into the room.

  The ventilation device of the present invention is an air supply passage that connects the outside of the building and the room through the outdoor suction port and the indoor outlet, and an exhaust ventilation passage that connects the room and the outside of the building through the indoor suction port and the outdoor outlet, A blower that forms a supply airflow from the outdoor inlet to the indoor outlet in the supply air passage, a blower that forms an exhaust flow from the indoor inlet to the outdoor outlet in the exhaust passage, and the supply and exhaust ventilation For a ventilator equipped with a heat exchanger that forms part of the path and exchanges heat between the airflows that flow through them, an air filter is supplied to the inlet part where the airflow of the heat exchanger flows Provide to cross the ventilation path. As the air filter, a water-resistant filter composed mainly of polyester or modacrylic is used. And the waste water treatment part which used this air filter as the water catching function body is constituted. The waste water treatment unit is configured with trenches for inserting and removing the air filter above and below the air supply ventilation path, and opens a drain hole in the lower trench toward the exhaust ventilation path. The trench is provided with a gradient toward the drain hole, and the drain hole is covered so that the air filter prevents the airflow from flowing when the air filter is attached.

  According to this ventilator, it is provided at the entrance where the air supply flow of the heat exchanger flows even if a large amount of water droplets are contained in the air supply flow that flows through the air supply ventilation path during drizzle or when fog occurs. Water is collected by the air filter and collected as drainage. The accumulated drain is drained from the drain hole of the drain of the drainage processing section to the exhaust ventilation path, and drained out of the apparatus together with the exhaust flow.

Embodiment 1 FIG.
FIG. 1 is a longitudinal front view showing a ventilator according to the present embodiment, FIG. 2 is an enlarged cross-sectional view showing a drainage treatment section thereof, and FIGS. 3 to 5 are partial plan views showing forms of drain holes, respectively. 6 is an enlarged cross-sectional view provided with a drain tray. As shown in FIG. 1, the ventilator according to the present embodiment has an air intake passage 3 that connects the outside of the building and the room through the outdoor air inlet 1 and the indoor air outlet 2, and the indoor and the outside of the building. A main body box 7 is configured with an exhaust ventilation path 6 connected through the opening 4 and the outdoor outlet 5. A decorative panel is detachably mounted on the front surface of the main body box 7, and the indoor air outlet 2 of the air supply ventilation path 3 of the main body box 7 and the indoor inlet 4 of the exhaust ventilation path 6 are respectively left and right of the decorative panel. It is opened apart.

  The outdoor air inlet 1 of the air supply ventilation path 3 and the outdoor air outlet 5 of the exhaust ventilation path 6 are provided side by side and substantially adjacent to the center of the back surface of the main body box 7, both of which are located outside the building. I can contact you. A blower 8 that forms a supply air flow from the outdoor suction port 1 to the indoor outlet 2 in the supply air passage 3, and a blower that forms an exhaust flow from the indoor suction port 4 to the outdoor outlet 5 in the exhaust ventilation passage 6. 9 is incorporated. Part of the air supply ventilation path 3 and the exhaust ventilation path 6 is constituted by each fluid passage of the stacked heat exchanger 10 having fluid passages that intersect each other independently. Continuous heat exchange takes place between the flowing supply and exhaust streams.

  That is, the indoor air sucked by the blower 9 from the indoor suction port 4 flows in the lateral direction on the front side of the main body box 7 and passes through one fluid passage of the heat exchanger 10 in the vertical direction, and the main body box 7 The air is exhausted from the outdoor air outlet 5 to the outside. On the other hand, the outdoor air sucked by the blower 8 from the outdoor suction port 1 at the lower back of the main body box 7 passes through the air supply passage 3 formed on the back side of the main body box 7 and the other of the heat exchanger 10. This fluid passage is laterally passed through and is blown into the room through the front indoor outlet 2 and heat exchange between the supply and exhaust flows is performed in the heat exchanger 10 in the middle of the path.

  A drainage treatment unit is provided at the inlet of the heat exchanger 10 where the supply airflow flows. The waste water treatment unit is composed of a water catching function body for catching mist-like water splashes mixed with the air supply air and a drainage structure. The water trapping function body is an air filter 11, which is provided in a state crossing the air supply passage 3 at the inlet portion into which the airflow of the heat exchanger 10 flows, and dust and water splashes included in the airflow. To capture. As the air filter 11, a water-resistant filter composed mainly of polyester, modacrylic or the like is used. The drainage structure is configured above and below the air supply passage 3 as a trench 12 for inserting / removing the air filter 11 from the front, and a drain outlet 13 is formed at the bottom of the lower trench 12 and passes below through a partition wall. It opens toward the exhaust ventilation path 6 facing 5. The trench 12 is provided with a gradient toward the drain hole 13, and the drain hole 13 covers the lower surface of the air filter 11 so as to prevent the airflow from flowing when the air filter 11 is attached.

  According to this ventilator, the inlet portion into which the supply airflow of the heat exchanger 10 flows even if a large amount of water droplets is included in the supply airflow that flows through the supply air ventilation path 3 during operation such as drizzle or when fog occurs. Water is trapped in the air filter 11 provided in, and becomes drainage and accumulates in the lower trench 12. Then, the accumulated drain is drained from the drain hole 13 formed in the bottom of the trench 12 to the exhaust ventilation path 6 and drained from the outdoor blower outlet 5 together with the exhaust flow to the outside of the apparatus and is not dropped into the room. Therefore, it can be said that the ventilation device is suitable for regular ventilation.

  The drain hole 13 may be a slit or a round hole, and may be plural or single as shown in FIG. Further, as shown in FIG. 4, the drain hole 13 can also be provided in the vicinity of the air filter 11 to facilitate the drainage treatment. In this case, as shown in FIG. 5, the flow of airflow is prevented in the drain hole 13, and the airflow preventing member 14 such as a non-woven fabric that allows the airflow is provided so as not to cause the performance deterioration related to blowing. Can be. In addition, as shown in FIG. 6, the drain hole 13 can be provided with a tube 15 as a water guiding portion that guides the drain, thereby suppressing the occurrence of splashes due to dripping of water. Further, as shown in the figure, a drain tray 16 is provided in the exhaust ventilation path 6 facing the outlet portion through which the exhaust flow of the heat exchanger 10 flows out, and the drain from the drain hole 13 is received in the drain tray 16. If the drain of the drain pan 16 is drained to the outdoor outlet 5, a ventilator with comprehensive drainage countermeasures is obtained.

It is a vertical front view which shows a ventilation apparatus. (Embodiment 1) It is an expanded sectional view of an air filter part. (Embodiment 1) It is a top view which shows the form of a drain hole. (Embodiment 1) It is a top view which shows the form of a drain hole. (Embodiment 1) It is a top view which shows the other form of a drain hole. (Embodiment 1) It is an expanded sectional view showing a drain pan and a drainage processing part. (Embodiment 1)

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Outdoor suction port, 2 Indoor air outlet, 3 Air supply ventilation path, 4 Indoor air inlet, 5 Outdoor air outlet, 6 Exhaust ventilation path, 8 Blower, 9 Blower, 10 Heat exchanger, 11 Air filter, 12 Trench, 13 Drain hole, 14 airflow blocking member, 15 tube, 16 drain pan.

Claims (8)

  An air supply passage that connects the exterior and interior of the building through an outdoor air inlet and an indoor outlet, an exhaust air passage that connects the interior and exterior of the building through an indoor air inlet and an outdoor air outlet, and the air supply passage A blower that forms a supply airflow from the outdoor inlet to the indoor outlet, a blower that forms an exhaust flow from the indoor inlet to the outdoor outlet in the exhaust ventilation path, the supply ventilation path and the exhaust ventilation path And a heat exchanger for exchanging heat between the airflows flowing through both of them, and the exhaust generated at the inlet portion into which the supply airflow of the heat exchanger flows is exhausted Ventilation device with a wastewater treatment unit that drains to the side of the ventilation path.   The ventilator according to claim 1, wherein a water collecting function body by an air filter provided with a waste water treatment part at an inlet portion into which a supply airflow of a heat exchanger flows, and a drain captured by the water collecting function body A ventilator configured by a drain hole that leads to an exhaust ventilation path located below the supply ventilation path of the part.   The ventilator according to claim 2, wherein a drain hole is provided below the air filter, and air flow is prevented from flowing through the drain hole by the air filter.   The ventilator according to claim 2, wherein a drain hole is provided at a position away from the air filter.   The ventilator according to claim 4, wherein a drain hole is also provided under the air filter.   The ventilation device according to claim 4 or 5, wherein an airflow is prevented from flowing through a drain hole at a position away from the air filter, and an airflow blocking member is provided to allow water flow. apparatus.   It is a ventilator in any one of Claim 2-6, Comprising: The ventilator which provided the water guide part which guides a drain to a drain hole.   The ventilator according to any one of claims 1 to 7, wherein a drain receiving tray is provided in an exhaust ventilation path facing an outlet portion through which an exhaust flow of the heat exchanger flows out, and the drain from the drain hole is supplied to the drain. A ventilator designed to be received by a saucer and to drain the drain of this drain saucer to an outdoor outlet.

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