JP5488187B2 - Heat exchanger - Google Patents

Description

  The present invention provides a heat exchange apparatus for supplying air from the outside and exhausting air from the room through a duct when performing indoor ventilation and air-saving by blowing air from a fan motor and heat exchange elements with indoor air and outdoor air. The present invention relates to maintenance of an air blowing fan and an exhaust air blowing fan.

  A conventional example of the heat exchange device will be described with reference to FIGS.

  As shown in FIGS. 9 and 10, the main body 100 of the heat exchange device has an inspection cover 101 on the lower surface, an indoor air inlet 102, an indoor air outlet 103, an outdoor air inlet 104, and an outdoor air outlet 105 on the side surface. Yes. Further, an exhaust vane 106 and an air supply vane 107 attached to the electric motor 108 are provided in the central portion. An exhaust fan casing 109 is provided outside the exhaust blade 106, and an air supply fan casing 110 is provided outside the air supply blade 107. A plurality of heat exchange elements 111 configured by laminating L-shaped air passages are arranged on the outer peripheral portions of the exhaust fan casing 109 and the air supply fan casing 110. The air supply air passage 114 communicates with the indoor air outlet 103 through the air supply air passage constituting plate 112, the heat exchange element 111, the air supply blade 107, and the air outlet pipe 113 from the outdoor suction port 104. The exhaust air passage 116 communicates with the outdoor air outlet 105 from the indoor suction port 102 through the exhaust air passage constituting plate 115, the heat exchange element 111, the exhaust blade 106, and the outlet pipe 113. (For example, refer to Patent Document 1).

  In this configuration, when the maintenance of the electric motor 108, the exhaust blade 106, and the air supply blade 107 is performed, the inspection cover 101 is removed to expose the inside of the main body 100, and the air supply air path component plate 112 and the plurality of heat exchange elements are exposed. After removing 111, it is necessary to remove the exhaust blade 106, the exhaust fan casing 109, the electric motor 108, the air supply blade 107, and the air supply fan casing 110 in this order.

JP 2006-349223 A

  In such a conventional heat exchange device, it is necessary to divide and remove the air supply fan and the air exhaust fan attached to the heat exchange device main body, respectively, which requires a large number of mounting steps and a complicated structure. There is a problem that maintenance work is difficult.

  The present invention solves such a conventional problem, and facilitates maintenance work by integrating a heat exchange element unit and a plurality of fans from an inspection port of a heat exchange device main body. An object is to provide a heat exchange device.

  And in order to achieve this object, it has an inside air inlet which sucks in indoor air, an exhaust port which discharges the sucked air outside, an outside air mouth which sucks in outside air, and an air supply port which supplies the sucked outside air into the room A main body case, a first blower fan for indoor air and a second blower fan for outside air provided in the main body case, and a plurality of plates in the main body case are overlapped at predetermined intervals. A heat exchange device that exchanges heat by alternately passing room air and outside air between the plates of the heat exchange element, wherein the heat exchange element A discharge port and an outside air discharge port are provided adjacent to each other, and a plurality of the heat exchange elements are arranged with a boundary portion (hereinafter referred to as a discharge port boundary portion) between the discharge port for room air and the discharge port for outside air facing each other. Integrated heat exchange element A configuration in which a knit is provided, and a fan unit in which the first blower fan and the second blower fan are integrated into one unit, and the heat exchange element unit and the fan unit can be taken out from an opening provided on the side surface of the main body case. This achieves the intended purpose.

  According to the present invention, a main body case having an interior air inlet for sucking in indoor air, an exhaust opening for discharging the sucked air to the outside, an outside air inlet for sucking in outside air, and an air supply port for supplying the sucked outside air to the room, A first air blow fan for indoor air and a second air blow fan for outside air provided in the main body case, and heat exchange in which a plurality of plates are superposed in the main body case in a state of being spaced apart from each other by a predetermined distance. A heat exchange device that exchanges heat by alternately passing room air and outside air between the plates of the heat exchange element, wherein the heat exchange element includes a discharge port of room air and outside air. The plurality of heat exchange elements are arranged adjacent to each other so that the boundary portion between the indoor air discharge port and the outside air discharge port (hereinafter referred to as the discharge port boundary portion) is opposed to each other. Provide an exchange element unit. In addition, the first air blowing fan and the second air blowing fan are integrated into a fan unit, and the heat exchange element unit and the fan unit can be taken out from the opening provided on the side surface of the main body case. Thus, there is no need to divide and remove the first blower fan for indoor air and the second blower fan for outside air, and an effect that maintenance work can be facilitated can be obtained.

The top view which shows schematic structure of the heat exchange apparatus of Embodiment 1 of this invention Front view showing the schematic structure of the heat exchanger A perspective view showing a heat exchange element of the heat exchange device Side sectional view showing a heat exchange element unit of the heat exchange device Front perspective view showing a heat exchange element unit of the heat exchange device Rear perspective view showing a heat exchange element unit of the heat exchange device A perspective view showing a fan unit of the heat exchange device Front sectional view showing details of fan unit fixing part of heat exchange device (a) Detailed view before fixing, (b) Detailed view after fixing Front view showing a schematic structure of a conventional heat exchange device A plan view showing a schematic structure of the heat exchange device

  The ventilator according to claim 1 of the present invention includes an internal air inlet for sucking in indoor air, an exhaust port for discharging the sucked air to the outside, an external air port for sucking in the outside air, and an air supply port for supplying the sucked outside air to the room A main body case, a first blower fan for indoor air and a second blower fan for outside air provided in the main body case, and a state in which a plurality of plate bodies are spaced apart from each other in the main body case. And a heat exchange device that performs heat exchange by alternately passing room air and outside air between the plates of the heat exchange element, wherein the heat exchange element An air discharge port and an outside air discharge port are provided adjacent to each other, and the plurality of heat exchange elements are arranged with a boundary portion (hereinafter referred to as a discharge port boundary portion) between the indoor air discharge port and the outside air discharge port facing each other. Integrated heat exchange element A configuration in which a knit is provided, and a fan unit in which the first blower fan and the second blower fan are integrated into one unit, and the heat exchange element unit and the fan unit can be taken out from an opening provided on the side surface of the main body case. Have Accordingly, the heat exchange element unit including the plurality of heat exchange elements, the discharge boundary portion that forms the air path without mixing the indoor air ventilation path and the outside air ventilation path of the heat exchange element, and the first blower fan for indoor air Since the fan unit including the second blower fan for outside air as an integrated unit can be easily taken out from the main body of the heat exchange device, the first blower fan for indoor air and the second blower fan for outside air are respectively provided. There is an effect that maintenance work can be facilitated without the need to divide and remove.

  Moreover, you may make it the structure which can take out from a main body case side surface in order of a heat exchange element unit and a fan unit from the said opening part. As a result, the heat exchange element unit can be taken out of the heat exchange device main body before the fan unit. Therefore, by disposing the fan unit having a longer maintenance cycle than the heat exchange element unit from the opening, the heat exchange element There is no need to remove the fan unit during the maintenance work of the unit, and the maintenance work can be facilitated.

  Further, the fan unit rail may be provided so that the fan unit slides horizontally toward the heat exchange element unit. As a result, since the space where the heat exchange element unit is taken out from the main body case can be used, the fan unit slides in the main body case, so that the fan unit can be easily maintained. Play.

  Also, the opening surface of the discharge port of the first blower fan and the opening surface of the discharge port of the second blower fan are arranged so as to be parallel to the fan unit rail, and further, an exhaust port connection surface that communicates with the exhaust port of the main body case; The air supply port connection surface that communicates with the air supply port of the main body case is provided so as to be parallel to the fan unit rail. According to such a configuration, when the fan unit is moved to a predetermined position along the fan unit rail, the opening surface of the discharge port of the first blower fan and the exhaust port connection surface are joined, and at the same time, the second blower fan. Since the opening surface of the discharge port and the air supply port connection surface are joined, the fan unit can be easily mounted.

  Moreover, you may make it the structure which provided the slide mechanism part in the discharge outlet of the 1st ventilation fan and the 2nd ventilation fan. Thereby, the connection surface of the air passage leading to the discharge port and the exhaust port of the first blower fan and the connection surface leading to the discharge port and the air supply port of the second blower fan can be easily slid. Maintenance work of the fan unit can be facilitated while maintaining the sealing performance at the connection surface of the air passage leading to the discharge port and exhaust port of the blower fan and the connection surface leading to the discharge port and supply port of the second blower fan. There is an effect that can be done.

  Moreover, you may make it the structure which provided the holding | suppressing part closely_contact | adhered to an exhaust port connection surface and an air supply port connection surface in the slide mechanism provided in the 1st ventilation fan and the 2nd ventilation fan. Thereby, the connection surface of the air passage leading to the discharge port and the exhaust port of the first blower fan and the connection surface leading to the discharge port and the air supply port of the second blower fan can be easily sealed. Maintenance work of the fan unit can be facilitated while maintaining the sealing performance at the connection surface of the air passage leading to the discharge port and exhaust port of the blower fan and the connection surface leading to the discharge port and supply port of the second blower fan. There is an effect that can be done.

  Moreover, it is good also as a structure which provided the fan discharge port slide rail in the opening edge part of an exhaust port connection surface and an air supply port connection surface so that it may become parallel to a fan unit rail. According to such a configuration, the opening surface of the discharge port of the first blower fan and the opening surface of the discharge port of the second blower fan are slid on the fan discharge port slide rail to easily slide the exhaust port connection surface and the supply port. It can lead to the mouth connection surface.

  In addition, the fan unit may be configured such that the first blower fan and the second blower fan are integrated into one unit with a motor base provided in a plate shape so as to partition the indoor air ventilation path and the outside air ventilation path. According to such a configuration, the indoor air ventilation path and the outside air ventilation path can be easily partitioned by mounting the fan unit.

  Moreover, you may make it the structure which provided the fan unit fixing | fixed part which fixes the fan unit with the inner back side surface of the main body case which becomes the said facing part. As a result, since the inner back side and the fan unit can be easily detached without touching the inner back side by the fan unit fixing portion, the inner back side and the fan unit can be easily detached. There is an effect that the maintenance work of the unit can be facilitated.

  Moreover, you may make it the structure provided with the fixed base part and the rotation part as a fan unit fixing | fixed part. As a result, since the fan unit can be easily fixed by the rotating part, the fan unit can be easily fixed by the rotating part, so that the fan unit can be easily maintained. Play.

  The rotating part is a rail-shaped metal fitting whose cross section is formed in a U-shape, and is fixed to the fixed base part so that it can be rotated around the bent part. One end of the rotating part is provided at the end of the motor base. By pressing this surface against the inner back side of the main body case, the other surface of the rotating part presses and fixes the motor base in the vertical direction. According to such a configuration, the fan unit can be easily fixed to the main body case, and the indoor air ventilation path and the outside air ventilation path can be partitioned.

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

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the side air 1 a of the main body case 1 is exhausted to the outside through the duct 2 (not shown) and the inside air port 2 for sucking contaminated air generated in the room and the sucked air to the outside. It has an exhaust port 3, an outside air port 4 for sucking in outside air, and an air supply port 5 for supplying the sucked outside air into the room. At least one surface of the main body case 1 has an inspection cover 1b. In the main body case 1, there is provided an exhaust fan 6 composed of an exhaust blade 6a, an exhaust casing 6b, and an exhaust discharge portion 6d as a first blower fan for indoor air. Similarly, an air supply fan 7 including an air supply blade 7a, an air supply casing 7b, and an air supply discharge portion 7d is provided as a second blower fan for outside air.

  Further, in the main body case 1, an exhaust discharge port 6 e communicating with the exhaust discharge portion 6 d of the exhaust fan 6 and an air supply discharge port 7 e communicating with the air supply discharge portion 7 d of the air supply fan 7 are provided. ing. The exhaust discharge port 6e slides and slides on the opening surface of the exhaust discharge portion 6d of the exhaust fan 6 and is fixed to the exhaust discharge portion 6d. Similarly, the air supply / discharge port 7e slides and slides on the opening surface of the air supply / discharge portion 7d of the air supply fan 7 and is fixed in communication with the air supply / discharge portion 7d. The exhaust discharge portion 6d is formed with a presser portion 6f, and when the exhaust discharge portion 6d slid and the exhaust discharge port 6e match, the presser portion 6f becomes a part of the exhaust discharge port 6e, and the exhaust fan The air discharged from 6 has a structure that does not leak from these joints. Similarly, the air supply discharge portion 7d is formed with a presser portion 7f. When the air supply discharge portion 7d slid and the supply air discharge port 7e are matched, the presser portion 7f is connected to the air supply discharge port 7e. A part of the air discharged from the air supply fan 7 does not leak from these joints.

  An exhaust air passage 6c (an air passage route extending from ● to ○ in FIGS. 1 and 2) is formed by communicating the inside air port 2, the exhaust fan 6, the exhaust discharge port 6e, and the exhaust port 3. Also, the air supply path 7c (the air path from □ to □ in FIGS. 1 and 2) is formed by communicating the outside air port 4, the air supply fan 7, the air supply discharge port 7e, and the air supply port 5. ing. The exhaust air passage 6c and the supply air passage 7c are partitioned by an air passage partition 8 and a motor base 9a so as not to mix. Further, a heat exchange element unit 12 with a heat exchange element 11 interposed is disposed in the air path of the exhaust air path 6c and the supply air path 7c.

  Here, the structure of the heat exchange element unit 12 will be described in detail with reference to FIGS.

  The heat exchange element 11 is obtained by polymerizing a plurality of substantially rectangular plate bodies 10c each provided with an L-shaped ventilation lane 10b with an L-shaped wall 10a and spaced apart at a predetermined interval, for example, 1 to 3 mm. Between the plate bodies 10c separated by a predetermined interval, there is a heat transfer plate 10d that exchanges heat by alternately passing through latent heat and sensible heat of indoor air and outside air, and the plurality of plate bodies 10c and the heat transfer plate 10d. Are laminated.

  The heat exchange element 11 is a heat exchange element unit 12 that does not complicate the air passage structure even when a plurality of heat exchange elements 11 are combined in parallel. That is, the heat exchange element 11 is interposed in the exhaust air passage 6c, and has an element inside air intake port 11e and an element inside air discharge port 11a for sucking room air, and is interposed in the air supply air passage 7c and the element outside air that sucks in outside air. There are a suction port 11f and an element outside air discharge port 11b. The element inside air discharge port 11a and the element outside air discharge port 11b are provided adjacent to each other. A plurality of such heat exchange elements 11 are arranged so that the boundary portion between the element inside air discharge port 11a and the element outside air discharge port 11b (hereinafter referred to as the discharge port boundary portion 11c) is opposed to each other to constitute the heat exchange element unit 12. Yes. The discharge port boundary portions 11c of the opposed heat exchange elements 11 are connected to each other by an air passage boundary plate 11d. Further, the end portions of the element inside air suction port 11e and the end portions of the element outside air suction port 11f are respectively connected by a protruding portion 11g. Here, the surface on the exhaust fan 6 and air supply fan 7 side of the heat exchange element unit 12 is a fan side exterior surface 12c, and the opposite surface is an inspection port side exterior surface 12d.

  The heat exchange element unit 12 has two air paths: an inside air ventilation path 12a having an element inside air discharge port 11a and an outside air ventilation path 12b having an element outside air discharge port 11b. The inside air ventilation path 12 a communicates with the exhaust fan 6, and the outside air ventilation path 12 b communicates with the air supply fan 7. As described above, the plurality of heat exchange elements 11 are used, but they are also divided into the inspection port side (the inspection port side exterior surface 12d side) and the fan side (the fan side exterior surface 12c side). (That is, a plurality of heat exchange elements 11 are arranged from the upstream side to the downstream side along the inside air ventilation path 12a and the outside air ventilation path 12b.) Heat on the inspection port side exterior surface 12d side (the air path upstream side) The exchange element 11 has the element inside air discharge port 11a and the element outside air discharge port 11b directed toward the air passage boundary plate 11d (the air passage downstream side).

  Further, the heat exchange element 11 on the fan side exterior surface 12c side has the element inside air discharge port 11a and the element outside air discharge port 11b directed to the fan side exterior surface 12c side. That is, the heat exchange element 11 on the inspection port side exterior surface 12d side and the heat exchange element 11 on the fan side exterior surface 12c side are arranged in a form rotated by 90 °.

  When the distance between the inspection port side exterior surface 12d and the fan side exterior surface 12c is long and three or more heat exchange elements 11 are used, the heat exchange element 11 and the fan side exterior on the inspection port side exterior surface 12d side are used. In the heat exchange element 11 sandwiched between the heat exchange elements 11 on the surface 12c side, the element inside air discharge port 11a and the element outside air discharge port 11b face the air passage boundary plate 11d side.

  Further, the projecting portion 11g is configured to be inclined so that the cross-sectional areas of the inside air ventilation path 12a and the outside air ventilation path 12b increase from the inspection port side exterior surface 12d toward the fan side exterior surface 12c. ing. A handle 12e is attached to the side of the inspection port side exterior surface 12d that does not face the air passage of the inside air passage 12a and the outside air passage 12b.

  On the other hand, the exhaust air passage 6c (the air passage route from ● to ○ in FIGS. 1 and 2) and the air supply air passage 7c (the air passage route from ■ to □ in FIGS. 1 and 2) are not mixed. A road partition 8 is provided. A fan unit rail 8a is formed as a part of the air passage partition 8. A motor base 9a that can slide in the horizontal direction is provided so as to be sandwiched between the fan unit rails 8a. The motor base 9a includes a motor 9b for fixing and rotating the exhaust vane 6a and the air supply vane 7a, an exhaust casing 6b for the exhaust fan 6, and an air supply casing 7b for the air supply fan 7. The fan unit 13 is fixed and integrated into one unit.

  Further, a fan unit fixing portion 13a is provided on the inner back side surface 1c which is the inner side surface of the main body case 1 which faces the surface to which the inspection cover 1b is attached. The fan unit fixing portion 13a is detachable between the fan unit 13 and the inner back side surface 1c without a fixing member such as a screw when the fan unit 13 is inserted to the inner back side surface 1c. The fan unit fixing portion 13a includes a fixing base portion 13b that is fixed to the inner back side surface 1c and a rotating portion 13c that holds the motor base 9a. The rotating portion 13c is a rail-shaped metal fitting with a cross-section of "<", and can be rotated with the apex (bending portion) of the "<" shape fixed to the fixed base portion 13b as an axis. ing. When a force is applied to press one surface of the rotating portion 13c against the inner back surface 1c at the end of the motor base 9a of the fan unit 13, the other surface is rotated around the shaft provided on the fixed base portion 13b. A force is applied to the base 9a in a substantially vertical direction to hold it. Here, the substantially vertical direction is an angle of about 90 ° with respect to the horizontal direction of sliding, and is a direction in which the motor base 9a is sandwiched between the fixed base portion 13b and the rotating portion 13c and sliding sliding is suppressed. .

  Next, maintenance will be described.

  When the inspection cover 1 b provided on the side surface 1 a of the main body case 1 is removed, an opening 1 d is opened on the side surface 1 a of the main body case 1, and first, the handle 12 e of the heat exchange element unit 12 is exposed from the main body case 1. The heat exchange element unit 12 is guided by the element rail 12f. When the handle 12e is pulled, the heat exchange element unit 12 slides along the element rail 12f from the inside of the main body case 1 toward the inspection cover 1b. It can be taken out easily.

  After the heat exchange element unit 12 is taken out from the main body case 1, when the fan unit 13 is pulled from the inner back side surface 1 c toward the inspection cover 1 b, the substantially vertical direction of the rotating portion 13 c added to the motor base 9 a of the fan unit 13. The power of is released while rotating. When the fan unit 13 is pulled as it is, the fan unit 13 slides and slides on the fan unit rail 8a, and at the same time, the exhaust discharge portion 6d of the exhaust fan 6 and the supply discharge portion 7d of the supply fan 7 are respectively connected to the exhaust discharge port. 6e and the air supply / discharge port 7e slide.

  And it can move to the position where the heat exchange element unit 12 of the main body case 1 was interposed, and the fan unit 13 can be easily taken out of the main body case 1 from the opening 1d.

  With the above configuration, the heat exchange element unit 12 can be easily removed from the main body case 1 prior to the fan unit 13. The fan unit 13 can be easily taken out from the main body case 1 by pulling out to the space where the heat exchange element unit 12 is taken out. Therefore, it is not necessary to separately remove the exhaust fan 6 and the air supply fan 7. Further, the heat exchange element unit 12 can perform maintenance work without removing the fan unit 13. On the other hand, when the fan unit 13 is to be maintained, the fan unit 13 slides within the main body case 1, so that the maintenance work can be facilitated.

  Further, the exhaust discharge portion 6d and the exhaust discharge port 6e of the exhaust fan 6 are easily controlled by the holding portion 6f, and the supply discharge portion 7d and the supply air discharge port 7e of the supply fan 7 are easily controlled by the suppression portion 7f. Can be sealed. Furthermore, since the fan unit 13 can be easily detached from the inner back side surface 1c by the rotating part 13c of the fan unit fixing part 13a, the maintenance work of the fan unit 13 can be facilitated while maintaining the sealing property. .

  Further, the opening surface of the exhaust discharge portion 6d of the exhaust fan 6, the opening surface of the air supply discharge portion 7d of the air supply fan 7, and the exhaust discharge port 6e and the air supply discharge port 7e are connected to the fan unit rail 8a. To be parallel to The exhaust discharge port 6e and the exhaust discharge portion 6d of the exhaust fan 6 and the discharge for supply of air from the supply fan 7 so as to be parallel to the fan unit rail 8a at the ends of the exhaust discharge port 6e and the supply air discharge port 7e. A fan discharge port slide rail (not shown) that slides in response to the end of the portion 7d may be provided. According to such a configuration, the exhaust unit 6d of the exhaust fan 6 and the supply unit 7d of the supply fan 7 are connected to the exhaust discharge port 6e and the supply discharge port by sliding the fan unit 13, respectively. 7e can be joined to the opening.

  The heat exchange device according to the present invention integrates an exhaust fan and an air supply fan as a fan unit, facilitating maintenance, not only a heat exchange device maintained by a specialist in a non-residential building, It is useful as a heat exchange device that is maintained by residents in general residential buildings.

DESCRIPTION OF SYMBOLS 1 Main body case 1a Side surface 1b Inspection cover 1c Inner side surface 1d Opening part 2 Inside air port 3 Exhaust port 4 Outside air port 5 Air supply port 6 Exhaust fan 6a Exhaust blade | wing 6b Exhaust casing 6c Exhaust air path 6d Exhaust discharge part 6e Exhaust discharge port 6f Holding part 7 Air supply fan 7a Air supply blade 7b Air supply casing 7c Air supply air path 7d Air supply discharge part 7e Air supply outlet 7f Control part 8 Air path partition 8a Fan unit rail 9a Motor base 9b Motor 10a L-shaped wall 10b L-shaped ventilation lane 10c Plate body 10d Heat transfer plate 11 Heat exchange element 11a Element air discharge port 11b Element outside air discharge port 11c Discharge port boundary 11d Air channel boundary plate 11e Element air intake port 11f Element outside air suction port 11g Protrusion part 12 Heat exchange element unit 12a Inside air ventilation path 12b Outside air ventilation path 1 c fan side outer surface 12d inspection opening-side outer face 12e handle 12f elements rail 13 fan units 13a fan unit fixing portion 13b fixed base portion 13c rotating part

Claims (11)

A main body case having an internal air inlet for sucking in indoor air, an exhaust port for discharging the sucked air to the outside, an external air port for sucking in outside air, and an air supply port for supplying the sucked outside air to the room;
A first blower fan for indoor air and a second blower fan for outside air provided in the main body case;
In the main body case, a plurality of plate members are each composed of a heat exchange element that is polymerized in a state of being separated by a predetermined interval,
A heat exchange device that exchanges heat by alternately passing room air and outside air between the plates of the heat exchange element,
The heat exchange element is provided with an outlet for indoor air and an outlet for outside air adjacent to each other,
A plurality of the heat exchange elements are disposed so that the boundary part between the room air discharge port and the outside air discharge port (hereinafter, the discharge port boundary part) is opposed to each other, and an integrated heat exchange element unit is provided,
Furthermore, it is a fan unit in which the first blower fan and the second blower fan are integrated into a unit,
A heat exchange device configured to be able to take out the heat exchange element unit and the fan unit from an opening provided on a side surface of the main body case. The heat exchange device according to claim 1, wherein the heat exchange device is configured so that the heat exchange element unit and the fan unit can be taken out from the side surface of the main body case in order from the opening. The heat exchange apparatus according to claim 1, wherein the fan unit is provided with a fan unit rail that slides horizontally toward the heat exchange element unit. The opening surface of the discharge port of the first blower fan and the opening surface of the discharge port of the second blower fan are arranged so as to be parallel to the fan unit rail,
The exhaust port connection surface that communicates with the exhaust port of the main body case and the air supply port connection surface that communicates with the air supply port of the main body case are provided so as to be parallel to the fan unit rail. The heat exchange apparatus as described in one. The heat exchange device according to claim 4, wherein a slide mechanism portion is provided at an outlet of the first blower fan and the second blower fan. 6. The heat according to claim 5, wherein the slide mechanism provided in each of the first blower fan and the second blower fan is provided with a pressing portion that is in close contact with the exhaust port connection surface and the air supply port connection surface. Exchange equipment. The heat exchange device according to any one of claims 4 to 6, wherein a fan discharge port slide rail is provided at an opening end portion of the exhaust port connection surface and the air supply port connection surface so as to be parallel to the fan unit rail. . 8. The fan unit according to any one of claims 1 to 7, wherein the first blower fan and the second blower fan are integrated into one unit with a motor base provided in a plate shape so as to partition the indoor air ventilation path and the outside air ventilation path. The heat exchange apparatus as described in any one. The heat exchange device according to claim 8, further comprising a fan unit fixing portion that fixes the inner back side surface of the main body case that faces the opening and the fan unit. The heat exchange device according to claim 9, further comprising a fixed base portion and a rotating portion as the fan unit fixing portion. The rotating part is a rail-shaped metal fitting whose cross section is formed in a dogleg shape,
It is fixed to the fixed base part so as to be able to rotate around the bent part,
The one surface of the rotating part is pressed against the inner back side of the main body case at the end of the motor base, and the other surface of the rotating part presses and fixes the motor base in the vertical direction. The heat exchange apparatus as described.

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