JPH035649A - Heat exchanging type ventilator - Google Patents

Abstract

PURPOSE:To dispense with heat insulating materials at an unit part by a method wherein in a ventilation unit a foam resin-made air flow passage body having respective flow passage parts for air charging, by-passing and exhausting is equipped, and also a selective damper for heat exchanging ventilation allowing air to flow through all heat exchanging elements and ordinary ventilation allowing air not to flow through the elements. CONSTITUTION:In a draft unit 21, an air charging flow passage part 7, an exhaust flow passage part 19, and the air flow passage 15 of a by-passing flow passage part 8 are constituted by foam resin. Then, in the part 19 a damper connected with a motor 13 is removably put in and the flow passage body 15 is interposed between fixed metal fittings 16 and fixed by a screw 17. Thereby, though an air flow passage 22 is for cold air and an exhaust flow passage 23 is for warm air, the body 15 is insulated because the body 15 is constituted of foam resin and even though the passages 22 and 23 are used for cold and warm air respectively, dew condensation does not occur. And, as the unit 21 is constituted in one body, it is possible to take out the total unit 21 after an inspection cover 24 is first removed and then the total heat exchanging elements 11 are removed at the inspection time of a motor 13, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat exchange type ventilation device for ventilating a room.

2. Description of the Related Art Conventionally, this type of heat exchange type ventilation apparatus has been constructed as shown in FIGS. 5 to 7. That is, the main body 100 has an outdoor suction port 104, an indoor suction port 101, and an indoor discharge port 1.
05 and an outdoor outlet 102, the main body 1oo
Inside, there is a blower chamber 122 consisting of a motor 111 with exhaust vanes 108 and intake vanes 109 coaxially arranged, and a blower chamber 122 made of metal plates, which is divided into an upper stage and a lower stage, as shown in Fig. 7. Central partition plate 114. A ventilation unit 130 consisting of an intake partition plate 116 and an exhaust partition plate 118 that further partition the upper side, and a total heat exchange element 110 shown in FIG.
It is composed of a total heat exchange chamber 131 equipped with. As shown in FIGS. 6 and 7, the passage unit 130 is secured to the main body 100 using screws 11, and
During ventilation, insulating material 119°120.1 is used to prevent condensation caused by cold air outdoors and warm air indoors.
21 is pasted to prevent dew condensation, and to directly exhaust indoor air without passing through the total heat exchange element 110. A damper 113 has a motor 1121 connected to the exhaust chamber 103.
An opening 118 is provided which can be opened and closed by. A lid 123 is provided on one side of the total heat exchange chamber 131 for inspection. In this way, conventionally, by operating the intake vanes 109 and the exhaust vanes 108 as shown in FIG.
Outside air flows in from the outdoor side suction port 104, passes through the intake vane 109 as shown by the arrow Y-Y', and then flows into the ventilation unit) 13.
Indoor air flows in through the air supply ventilation path 135 that passes through the air supply chamber 106 of 0, passes through one side of the total heat exchange element 110, and reaches the indoor outlet 106, and the indoor air inlet 101, and the indoor air flows in the direction indicated by the arrow x-x'.
As shown in FIG. 2, an exhaust ventilation path 140 is configured, which passes through the exhaust chamber 103 via the exhaust vane 10B, passes through the other surface of the total heat exchange element 110, and reaches the outdoors from the outdoor outlet 102. When the damper 113 of 103 is opened, the indoor air flowing in from the indoor suction port 1o1 flows into the exhaust chamber 103 through the exhaust vane 108, and flows downward toward the bypass passage 107 as indicated by the arrow X" shown in FIG. Flows to the side, and flows in the lateral direction without passing through the total heat exchange element 110, directly flowing to the outdoor outlet 102 and not exchanging total heat.
The structure was such that so-called normal ventilation was performed.

Problems to be Solved by the Invention In such a conventional configuration, there is a problem in the passage unit 13o. That is, cold air flows into the air supply chamber 106 from the outdoor suction port 104 by the intake vane 109 and enters the air supply chamber 106, and warm air flows from the blade indoor suction port 101 into the exhaust chamber 103 by the exhaust vane 10B. Therefore, it is necessary to attach a large amount of heat insulating material 119, 120, 121 to prevent condensation. Moreover, since the passage unit 130 is fixed to the main body 10o at several locations with screws 117, the number of man-hours required during manufacturing is large, which is a factor in increasing manufacturing costs.

If the motor 112 fails, these screws 117
There was a problem in that it was necessary to take out all of the parts 9, maintenance was poor, and workability was extremely poor.

The present invention solves the above-mentioned conventional problems, eliminates the need for heat insulating material in the passage unit, reduces manufacturing costs,
Another object of the present invention is to provide a heat exchange type ventilation device that improves work efficiency when replacing a motor.

Means for Solving the Problem To solve this problem, the invention is: ・In the main body of the ventilation system, from the indoor side suction port, through the exhaust vane, passing through the ventilation unit, passing through the total heat exchange element and reaching the outdoor side discharge port. An exhaust ventilation flow path and a supply air ventilation flow path from the outdoor side suction port, through the suction vane, through the ventilation unit, passing through the total heat exchange element and reaching the indoor side discharge port are formed, and the ventilation unit is configured to Air passages,
The ventilation passage body is made of foamed resin and has a bypass passage portion and an exhaust passage portion. It is equipped with a damper that selects between heat exchange ventilation that passes through the total heat exchange element and normal ventilation that does not pass through the total heat exchange element.

Function: With this configuration, air flows from the outdoor side suction port through the air intake vane, through the air supply passage section of the ventilation passage body, and through the total heat exchange element.
Exhaust air passes through the supply air ventilation flow path leading to the indoor side discharge port, and the exhaust air passes from the indoor side suction port via the exhaust vane, passes through the exhaust passage section of the ventilation path body, passes through the total heat exchange element, and reaches the outdoor side discharge port. Even if there is a difference between cold air and warm air between the air passage and the air passage, dew will not form on the ventilation passage body, and during normal ventilation, the opening will be left open and air will flow from the indoor suction port through the exhaust vane. It flows from the exhaust passage through the opening, from the bypass passage of the ventilation unit to the outdoor outlet, and there is no condensation in the ventilation passage at this time.When inspecting the ventilation unit, make sure to remove the total heat exchange element. After taking it out, it becomes possible to take out the ventilation unit.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4. In FIG. 1, a main body 1 includes an indoor suction port 2, an outdoor discharge port 3, an outdoor suction port 6, and an indoor discharge port 6. Inside the main body 1, there is a blower chamber 4 having a blower 12 having exhaust blades 9 and intake blades 10, and a ventilation unit 2 arranged in parallel with the blower chamber 4.
As shown in FIG. 4, this ventilation unit 21 includes a mounting plate 18 consisting of an air supply communication port 18a, an exhaust communication port 18b, and a bypass communication port 18c, and a ventilation passage body 15 made of foamed resin. is sandwiched between the U-shaped fixing fittings 16, and the screw hole 18e of the mounting plate 18,
A screw hole 16a of the fixture 16 is fixed with a screw 17. Further, the ventilation passage body 15 includes the air supply passage part 7 on the upper stage side.
, an exhaust passage section 19 , and a bypass passage section 8 that flows horizontally on the lower stage side.
The damper 14 is fitted into the recess 15a provided in the damper 14.
An opening 2o is provided which communicates with the exhaust communication port 18b by opening and closing the exhaust port 18b, or wraps around the bottom and allows the flow to flow laterally. The total heat exchange element 1 shown in FIG. 1 is installed in parallel with the ventilation unit 21 configured as described above.
1, a total heat exchange chamber 25 having a
An inspection lid 24 that is opened and closed during inspection, repair, etc. is attached. Therefore, each air flow is
When taking in outside air, by operating the blower 12, the outside air flows in from the outdoor side suction port 6, passes through the air intake vane 10, passes through the air supply passage section 7 of the ventilation passage body 16, and enters the total heat exchange element 1.
1 and reaches the indoor discharge port 6 as indicated by the arrow B-B/, and the opening 2o from the indoor suction port 2 through the exhaust vane 9 is closed by the damper 14, and the exhaust passage is closed. Part 19
The air passes straight through the total heat exchange element 11, exchanges heat with the outside air in the supply air ventilation flow path 22, and forms an exhaust ventilation flow path 23 indicated by the arrow AA' that reaches the outdoor outlet 6. . On the other hand, when the damper 14 of the exhaust passage section 19 is opened to open the opening 2o, so-called normal ventilation is performed without passing the total heat exchange element 11.

That is, the indoor air flowing in from the indoor suction port 2 flows through the exhaust vane 9 to the exhaust passage section 19, passes through the opening 20, and flows downward, following the arrow A'' shown in FIGS. 2 and 3. A normal ventilation flow path 26 is formed in which the air flows laterally through the bypass passage portion 8 and reaches the outdoor outlet 3 from the bypass communication port 18c.

In the above configuration, the ventilation uniso I-21 includes a ventilation passage body 15 consisting of an air supply passage section 7, an exhaust passage section 19, and a bypass passage section 8 made of foamed resin, and a motor 13 in the exhaust passage section 19. Fit the connected damper 14 freely in rotation, sandwich the ventilation passage body 16 with the fixing fittings 16, and screw the screw hole 16 into place.
a and the screw hole 188 of the mounting plate 18, and then tighten the screw 17.
It is constructed by fixing it with. As a result, even if the supply air passage 22 is filled with cold air and the exhaust air passage 23 is filled with warm air, the air passage body 16 is made of foamed resin, so it will not be insulated. Even if the air flow path 22 and the exhaust ventilation flow path 23 are filled with cold air and warm air, no dew condensation occurs. Furthermore, by configuring it as an integrated ventilation unit 21, when inspecting the motor 13, etc., it is possible to remove the inspection lid 24, remove the total heat exchange element 11, and take out the entire ventilation unit 21. be.

Effects of the Invention As is clear from the description of the embodiments described above, in the present invention, a ventilation unit is formed in the middle of the intake passageway and in the middle of the exhaust ventilation passage, and the ventilation unit part is connected to the supply air passageway. It is constructed by fixing a ventilation passage body made of foamed resin having an exhaust passage part and a bypass passage part, and a mounting plate, and the exhaust passage part has an opening for opening and closing for normal ventilation. Since the motor connected to the damper is fitted and installed, there is no need to attach a large amount of insulation material to the ventilation unit as in the past, significantly reducing manufacturing costs, and preventing dew condensation. Since it can be attached and detached without being locked to the main body, it has the effect of improving workability during inspection.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view of a heat exchange type ventilation device according to an embodiment of the present invention, FIG. 2 is a front sectional view of the same heat exchange type ventilation device, and FIG.
The figure is a CC/sectional view of Fig. 1, Fig. 4 is an exploded perspective view of the ventilation unit of the heat exchange type ventilation system, Fig. 6 is a plan sectional view of the conventional heat exchange type ventilation system, and Fig. 6 is the same. A conventional front sectional view, FIG. 7, is a sectional view taken along the line zz' in FIG. 2...Indoor side suction port, 3...Outdoor side outlet, 6...Outdoor side suction port, 6...Indoor side outlet, 8. ...Bypass passage section, 9...
... Exhaust vane, 10... Suction vane, 11
...Total heat exchange element, 14 ... Damper, 16 ... Ventilation passage body, 18 ... Mounting plate, 19 ... Exhaust passage Part, 2o... Opening, 21... Ventilation unit, 22...
Supply air ventilation flow path, 23... Exhaust ventilation flow path.

Claims (1)

[Claims] The main body of the ventilation system has an exhaust ventilation flow path that starts from the indoor suction port, passes through the exhaust vane, passes through the ventilation unit, passes through the total heat exchange element, and reaches the outdoor discharge port, and the ventilation unit runs from the outdoor suction port, passes through the suction vane, and passes through the ventilation unit. The ventilation unit is made of foamed resin and has an air supply passage, a bypass passage, and an exhaust passage. The ventilation passage body is fixed to the mounting plate, and the exhaust passage portion is provided with an opening, and the opening is provided with a heat exchange ventilation through which a total heat exchange element passes, and a total heat exchange element. A heat exchange type ventilation system equipped with a damper that selects normal ventilation that does not allow air to pass through.