JP2013113491A - Heat exchange type ventilating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce operation sounds of a ventilating device, transmitted to the indoor side regarding a heat exchange type ventilating device used in a home kitchen, a business-use kitchen, or the like.SOLUTION: The heat exchange type ventilating device includes a hood section 6 in an indoor space 1, and a body 15 installed in a roof space 7, having a heat exchange element, and having a third connection port 13 communicating with a first connection port 4, and a fourth connection port 14 communicating with a second connection port 5. Air in the indoor space 1 sucked into the body 15 from the third connection port 13 passes through the heat exchange element 12, then passes through an exhaust fan 8 and is guided to an indoor air exhaust port 10, and outside air sucked into the body 15 from an outside air suction port 11 passes through an air supply fan 9, then passes through the heat exchange element 12 and is guided to the fourth connection port 14.

Description

  The present invention relates to a heat exchange type ventilator for exchanging heat between an exhaust flow for exhausting oil floating in a space such as a home kitchen or a commercial kitchen and a supply air flow for supplying outdoor air into the room. Is.

  In recent years, with the increase in airtightness of houses, ventilation systems such as home kitchens and commercial kitchens are required to supply not only the function of purifying contaminated air but also exhausting air, and supplying the same amount of air as the exhaust air. ing. On the other hand, particularly in winter or cold regions, there has been a problem of increasing the heating load by exhausting warm indoor air and supplying cold outdoor air.

  In order to solve these requirements and problems, a heat exchange type ventilator for exchanging heat between the supply and exhaust passages has been developed. Conventionally, this type of heat exchange type ventilator is known in which a fan and a heat exchanger are provided in a hood installed indoors (see, for example, Patent Document 1).

  Hereinafter, the heat exchange type ventilation apparatus shown in Patent Document 1 will be described with reference to FIG.

  An exhaust fan 106, an air supply fan 109, and a heat exchanger 105 are disposed in an outer casing 101 provided in an upper part of a kitchen gas range or the like. The air supply air passes through the heat exchanger 105 through the air supply port 108, passes through the air supply passage 110, and is supplied into the room through the air outlet 111 on the indoor side. In addition, the oil and the like are removed from the exhaust flow by the filter 103, and the exhaust air is discharged from the discharge port 107 to the outside by the exhaust fan 106 through the heat exchanger 105.

Japanese Utility Model Publication No. 58-27331

  In such a conventional heat exchange type ventilator, as exemplified in Patent Document 1, an exhaust fan, an air supply fan, and a heat exchanger are provided inside the outer casing.

  Such a conventional heat exchange type ventilator is usually provided indoors. For this reason, when ventilating with a large amount of air during cooking or the like, there is a problem that both the exhaust fan and the air supply fan become large noise sources.

  Furthermore, since the exhaust fan, the air supply fan, and the heat exchanger are provided indoors, the distance between the indoor space and the heat exchanger is short, and wind noise generated at the inflow / outflow part of the heat exchanger is noisy. It had the problem of becoming a source.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide a heat exchanging ventilator with low noise, which is a kitchen ventilator installed on an upper portion of a gas range or the like.

  In order to achieve this object, the present invention is installed indoors and has an indoor air intake port, an outside air supply port, a first connection port, and a second connection port, and the indoor air intake port and the first connection port. With a hood that communicates with the outside air supply port and the second connection port, installed in the ceiling space, exhaust fan, supply fan, indoor air exhaust port, outside air intake port, heat transfer and water resistance An air supply path that supplies outdoor air sucked from the outside air intake port to the indoor side and exhausts indoor air sucked from the indoor air intake port to the outside of the room. A heat exchange element formed so as to alternately pass through each of the layers constituted by the partition plate, and a third connection port communicating with the first connection port and a second connection port communicating with the second connection port A heat exchange type ventilator having a main body having four connection ports, the third connection port The indoor air sucked into the main body passes through the heat exchange element, then passes through the exhaust fan, is guided to the indoor air exhaust port, and the outside air sucked into the main body from the outside air intake port passes through the air supply fan. This is a heat exchange type ventilator characterized in that it passes through the heat exchange element and is then guided to the fourth connection port, thereby achieving the intended purpose.

  According to the present invention, the indoor air intake port, the outdoor air supply port, the first connection port, and the second connection port are installed indoors, and the indoor air intake port and the first connection port communicate with each other. It has a hood part that communicates with the air inlet and the second connection port, and is installed in the space behind the ceiling. The exhaust fan, the air supply fan, the indoor air exhaust port, the outside air intake port, and the partition plate having heat conductivity and water resistance are predetermined. An air supply path that superimposes multiple layers at intervals and supplies outdoor air sucked from the outdoor air inlet to the indoor side, and an exhaust path that discharges indoor air sucked from the indoor air inlet to the outside of the room. It has a heat exchange element formed so as to alternately pass through each layer constituted by the partition plate, and has a third connection port that communicates with the first connection port and a fourth connection port that communicates with the second connection port. It is a heat exchange type ventilator equipped with a main body and sucks into the main body from the third connection port The indoor air passes through the heat exchange element, passes through the exhaust fan, is guided to the indoor air exhaust port, and outside air sucked into the main body from the outside air intake port passes through the air supply fan, and then the heat exchange element is It is configured to pass through and be guided to the fourth connection port.

  With this configuration, the exhaust fan and air supply fan are installed behind the ceiling, so that the distance between the exhaust fan and air supply fan and the indoor space can be increased. This produces an effect that fan noise transmitted to the indoor space can be reduced.

  Also, by providing heat exchange elements between the exhaust fan and air supply fan and the indoor space, the sound generated from the exhaust fan and air supply fan is rectified when passing through the heat exchange element, and passes through the heat exchange element. Since the subsequent wind noise is reduced, it is possible to obtain an effect that the fan noise transmitted to the indoor space can be reduced by the heat exchange element.

  In addition, since the heat exchanger element is installed behind the ceiling, it is possible to increase the distance between the heat exchanger and the indoor space. An effect that wind noise generated at the inflow / outflow part to the exchanger can be reduced can be obtained.

Sectional drawing which shows the heat exchange type | formula ventilation apparatus of embodiment of this invention An exploded bird's-eye view of the heat exchange element in FIG. Schematic sectional view showing a conventional heat exchange ventilator

  The heat exchange type ventilator according to claim 1 of the present invention is installed indoors, and has an indoor air intake port, an outside air supply port, a first connection port, and a second connection port. It has a hood part where one connection port communicates and the outside air supply port communicates with the second connection port, and is installed in the ceiling space. The exhaust fan, the supply fan, the indoor air exhaust port, the outside air intake port, and the heat transfer And water-resistant partition plates are stacked in multiple layers at predetermined intervals, and an air supply path for supplying outdoor air sucked from the outside air intake port to the indoor side, and room air sucked from the indoor air intake port A third connection port and a second connection port communicating with the first connection port, wherein the exhaust path for discharging to the outside has heat exchange elements formed so as to alternately pass through the respective layers formed by the partition plate; A heat exchange type ventilator comprising a body having a fourth connection port in communication, The indoor air sucked into the main body from the connection port passes through the heat exchange element, then passes through the exhaust fan, is guided to the indoor air exhaust port, and the outside air sucked into the main body from the external air suction port turns the air supply fan After passing through the heat exchange element, the air is guided to the fourth connection port.

  With this configuration, the exhaust fan and air supply fan are installed behind the ceiling, so that the distance between the exhaust fan and air supply fan and the indoor space can be increased. This produces an effect that fan noise transmitted to the indoor space can be reduced.

  In addition, by providing a heat exchange element between the exhaust fan and air supply fan and the indoor space, the sound generated from the exhaust fan and air supply fan is rectified when passing through the heat exchange element, and after passing through the heat exchange element Since the wind noise is reduced, the fan noise transmitted to the indoor space can be reduced by the heat exchange element.

  In addition, the structure provided with the heat exchange elements between the exhaust fan and the air supply fan and the indoor space respectively rectifies the sound generated from the exhaust fan and the air supply fan when passing through the heat exchange element, and after passing through the heat exchange element Since the wind noise is reduced, the fan noise transmitted to the indoor space can be reduced by the heat exchange element.

  In addition, a partition plate may be provided so that the exhaust path of the heat exchange element is inclined downward.

  With this configuration, the oil collected on the surface of the heat exchange element is discharged from the surface of the heat exchange element due to gravity and wind pressure, and oil contamination of the heat exchange element can be suppressed. Furthermore, clogging of the endothermic fins due to oil stains can be suppressed. In addition, it is possible to increase the density of the heat exchange elements by reducing the arrangement interval of the heat exchange elements per unit volume. By increasing the density of the heat exchange elements, the number of sound reflection parts inside the heat exchange elements is increased, and part of the sound energy is absorbed by the reflective surface, so that the noise of the exhaust fan is further reduced by the heat absorber. The effect that it can be done can be obtained.

  Moreover, it is good also as a structure characterized by providing the drain pan in the heat exchange element lower part.

  With this configuration, oil or dust adheres and accumulates on the heat transfer plate of the heat exchange element and can be collected on the drain pan even when it leaks to the outside. And maintenance becomes easy. Further, it is possible to prevent wall contamination of the exhaust port.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 shows a cross-sectional view of a heat exchange type ventilator according to an embodiment of the present invention. FIG. 2 is an exploded bird's-eye view of the total heat exchange element in FIG.

  As shown in FIG. 1, the heat exchange type ventilator according to the present embodiment is installed in an indoor space 1 and includes an indoor air intake port 2, an outside air supply port 3, a first connection port 4, and a second connection port 5. And has a hood portion 6 through which the indoor air suction port 2 and the first connection port 4 communicate with each other, and the outside air supply port 3 and the second connection port 5 communicate with each other. The air supply fan 9, the indoor air exhaust port 10, the outside air intake port 11, the heat exchange element 12, the third connection port 13 communicating with the first connection port 4, and the fourth connection port 14 communicating with the second connection port 5. And a main body 15 having. The air in the indoor space 1 sucked into the main body 15 from the third connection port 13 passes through the heat exchange element 12 and then passes through the exhaust fan 8 and is guided to the indoor air exhaust port 10. 15, the outside air sucked into the interior passes through the air supply fan 9, then passes through the heat exchange element 12 and is guided to the fourth connection port 14.

  Hot air generated by cooking from the gas range 16 is sucked into the hood portion 6 from the indoor air suction port 2, passes through the first connection port 4 and the third connection port 13, and is sucked into the main body 15. The sucked air passes through the heat exchange element 12 and then passes through the exhaust fan 8 and is exhausted from the indoor air exhaust port 10. The outside air sucked into the main body 15 from the outside air inlet 11 passes through the air supply fan 9, passes through the heat exchange element 12, passes through the fourth connection port 14 and the second connection port 5, and then is introduced to the hood part 6. The air is supplied and supplied from the outside air supply port 3 to the indoor space 1.

  In the present specification, as shown in FIG. 1, the space below the ceiling 17 is defined as the indoor space 1 and the space above the ceiling 17 as the ceiling back space 7 with the ceiling 17 as a boundary.

  In addition, an aluminum tray 18 as a drain pan is provided below the exhaust outlet of the exhaust path of the heat exchange element 12. The aluminum tray 18 is supported by a stainless elevating plate 19 having a function of moving up and down horizontally by remote control operation, and is fixed so that the position does not move due to wind pressure or vibration. During operation of the heat exchange type ventilator, the stainless steel lifting plate 19 closes the tray outlet 20 attached to the main body 15 so that the air exhausted from the indoor space 1 does not leak. Further, when taking out the aluminum tray 18 for maintenance or the like, the stainless steel lifting plate 19 is operated by a remote controller or the like.

  FIG. 2 is an exploded bird's-eye view of the heat exchange element in FIG. The heat exchange element 12 of FIG. 2 has a configuration in which a plurality of aluminum partition plates 21 are alternately stacked, and an air supply path 22 and an exhaust path 23 are installed so as to alternately pass between these layers. The temperature is transmitted through the partition plate 21, and the air in the air supply path 22 and the exhaust path 23 exchanges heat. The exhaust path 23 of the heat exchange element 12 contacts the partition plate 21 and blows out from the heat exchange element 12 with an inclination in the vertically downward direction. Further, the exhaust path 23 is further branched into a plurality of paths by a partition bar 24 on the partition plate 21. Similarly, the supply path 22 is further branched into a plurality of paths along the flow path by the partition bar 24 on the partition plate 21.

  These configurations produce the following effects.

  With this configuration, since the exhaust fan 8 and the air supply fan 9 are installed in the ceiling space 7, the distance between the exhaust fan 8 and the air supply fan 9 and the indoor space 1 can be increased. While the sound is attenuated, the fan noise transmitted to the indoor space 1 can be reduced. Moreover, the hood part 6 can be made compact and the feeling of pressure by the hood part 6 in the indoor space 1 can be reduced.

  Further, since the heat exchange element 12 is provided between the exhaust fan 8 and the air supply fan 9 and the indoor space 1, when sound generated from the exhaust fan 8 and the air supply fan 9 passes through the heat exchange element 12. Since the wind noise after passing through the heat exchange element 12 is reduced, fan noise transmitted to the indoor space 1 can be reduced by the heat exchange element 12. In addition, the configuration in which the partition rod 24 is installed on the aluminum partition plate 21 enables further rectification and noise reduction.

  Since the heat exchange element 12 is provided between the exhaust fan 8 and the air supply fan 9 and the indoor space 1, heat can be exchanged. Therefore, heat can be recovered while discharging the odor of the indoor space 1, and more indoors. Air in a state close to air can be supplied, and a sudden change in temperature and humidity due to air supply can be reduced. For example, the indoor space 1 can be warmed using air generated during cooking in winter.

  The partition plate 21 is provided so that the exhaust path 23 of the heat exchange element 12 is inclined downward. Thereby, the oil passing through the heat exchange element 12 is collected on the surface of the aluminum partition plate 21 of the heat exchange element 12 by the inertial force effect and the cooling effect, and is discharged from the surface of the heat exchange element 12 by gravity and wind pressure. The Thereby, accumulation of oil stains on the heat exchange element 12 can be suppressed. Moreover, the density of the heat exchange elements 12 can be increased by reducing the arrangement interval of the partition plates 21 per unit volume. By increasing the density of the heat exchange elements 12, the number of sound reflection parts inside the heat exchange elements 12 is increased, and a part of the sound energy is absorbed by the reflection surface, so that the heat exchange elements 12 can exhaust the exhaust fan 8. And the effect that the noise of the air supply fan 9 can be reduced more can be acquired. As an example, the stacking interval can be reduced from about 4 mm to about 2 mm. This not only increases the density, but also facilitates rectification, so that fan noise can be reduced more effectively.

  In addition, an aluminum tray 18 is provided below the heat exchange element 12. Thereby, even when oil or dust adheres and accumulates on the partition plate 21 of the heat exchange element 12 and leaks to the outside, it can be collected on the aluminum tray 18. The user can collect and collect them together with the aluminum tray 18, and the maintenance becomes easy. Further, since the aluminum tray 18 is provided, it is possible to prevent the aluminum tray 18 from flowing out from the indoor air exhaust port 10, so that contamination on the wall from which the exhaust from the apparatus exits can be prevented.

  In FIG. 1, the gas range 16 is illustrated, but even if the gas range 16 is not provided, a difference in the effect does not occur. Moreover, although the aluminum tray 18 was shown, it does not limit a material, What is necessary is just to have heat resistance and can store oil and a water | moisture content. For example, a metal such as stainless steel other than aluminum may be used, or a heat-resistant melamine resin may be used. Although the stainless steel lifting plate 19 is shown, the material is not particularly limited as long as the aluminum tray 18 can be supported horizontally even when oil or the like accumulates in the aluminum tray 18. Further, the moving method of the aluminum tray 18 is not limited to the method of moving the stainless steel lifting plate 19 up and down while maintaining the horizontal level by remote control operation, but may be a method of sliding the stainless steel lifting plate 19 sideways or obliquely. In addition, the outside air supply port 3 is configured to blow out to the front of the gas range 16, but if included in the hood part 6, there is no difference in effect due to the difference in position.

  In FIG. 2, the number of the partition plates 21 is four. However, the number of the partition plates 21 may be one or more, and increasing the number increases the heat exchange efficiency and promotes rectification. More preferred. Further, although the partition plate 21 is made of aluminum, it is only necessary that the air supply and the exhaust can be separated from each other by a material having heat conductivity and resistance to oil. For example, copper or stainless steel may be used. Moreover, what combined the different material of the partition plate 21 may be sufficient, and a difference is not produced in the effect. Alternatively, a synthetic polymer compound resin plate such as an ACS resin or a synthetic rubber mixed with chlorinated polyethylene may be used. Further, the partition rod 24 does not necessarily have to be continuous from the air inlet to the outlet, and any path may be used as long as the supply air and the exhaust gas can be separated. In the present embodiment, a cross flow type element is exemplified, but a stationary type element such as a counter flow type or a parallel flow type may be used, and any heat exchange element that performs air-to-air exchange may be used. Also good.

  The heat exchanging ventilator according to the present invention can reduce noise generated inside the heat exchanging ventilator transmitted to the room, so that it floats in a space such as a home kitchen or a commercial kitchen. It is useful as a heat exchange type ventilator for exchanging heat between an exhaust flow for exhausting oil and an air supply air for supplying outdoor air into the room.

DESCRIPTION OF SYMBOLS 1 Indoor space 2 Indoor air inlet 3 Outside air supply port 4 First connection port 5 Second connection port 6 Hood part 7 Ceiling space 8 Exhaust fan 9 Supply fan 10 Indoor air exhaust port 11 Outside air intake port 12 Heat exchange element DESCRIPTION OF SYMBOLS 13 3rd connection port 14 4th connection port 15 Main body 16 Gas range 17 Ceiling 18 Aluminum tray 19 Stainless steel elevating plate 20 Tray outlet 21 Partition plate 22 Air supply path 23 Exhaust path 24 Partition bar 101 Outer casing 103 Filter 105 Heat exchanger 106 Blower for exhaust 107 Drain outlet 108 Air supply port 109 Blower for air supply 110 Air supply passage 111 Air outlet

Claims (3)

It is installed indoors and has an indoor air inlet, an outside air inlet, a first connection port, and a second connection port. The indoor air inlet and the first connection port communicate with each other, and the outside air inlet and the second connection. Equipped with a hood part that communicates with the mouth, installed in the space behind the ceiling, and stacks multiple layers of exhaust fans, air supply fans, indoor air exhaust ports, outside air intake ports, and heat transfer and water resistant partition plates at predetermined intervals In addition, the partition plate includes an air supply path for supplying outdoor air sucked from the outdoor air inlet to the indoor side and an exhaust path for discharging indoor air sucked from the indoor air inlet to the outdoor side. A heat exchange element having a heat exchange element formed so as to pass alternately between the layers, and having a main body having a third connection port communicating with the first connection port and a fourth connection port communicating with the second connection port This is a ventilator that allows indoor air sucked into the main body through the third connection port. After passing through the heat exchange element, it passes through the exhaust fan and is guided to the indoor air exhaust port, and the outside air sucked into the main body from the outside air intake port passes through the air supply fan and then passes through the heat exchange element to be connected to the fourth connection. A heat exchange type ventilator characterized by a structure that guides air to the mouth. The heat exchange type ventilator according to claim 1, wherein a partition plate is provided so that an exhaust path of the heat exchange element is inclined downward. The heat exchange ventilator according to claim 1 or 2, further comprising a drain pan at a lower portion of the heat exchange element.

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