JPS58179746A - Air-conditioning ventilating fan - Google Patents

Abstract

PURPOSE:To improve a heat-exchange rate, and to obtain the air-conditioning ventilating fan provided with forced simultaneous air-supply and exhaust ventilation passing no heat-exchange element and the function of a circulator by operating the heat-exchange element at time intervals required and replacing ventilation flues for exhaust and air-supply in the heat-exchange element. CONSTITUTION:A louver 5 with an indoor-side suction port 6 and a discharge port 7 is fitted to the front of a main body 1 with an outdoor-side suction port 2, a discharge port 3 and a parting plate 4, and the cubic columnar heat-exchange elements 8 formed by alternately laminating heat-transfer plates and space plates are mounted at positions adjacent to the louver 5 in the main body 1. Partition plates 13a-13d, 14a-14d are each formed to the main body 1 and the louver 5 at positions being in contact with each angle of the heat-exchange elements 8, and the heat-exchange elements 8 are turned through a shaft 9 at every fixed time at the intervals of 90 deg. by a motor 10. Blowers 15, 17 for exhaust and air-supply driven by a motor 19 are installed into each left and right chamber partitioned by the parting plate 4 in the main body 1.

Description

[Detailed Description of the Invention] The present invention relates to an air conditioning ventilation fan, and its purpose is to:
By making it possible to move the heat exchange element at predetermined time intervals, improving heat exchange efficiency and durability of the heat exchange element, and performing forced simultaneous supply and exhaust without heat exchange during periods when heating and cooling are not performed. The aim is to increase the volume of ventilation air and use it as a circulator during heating and cooling to improve the effectiveness of heating and cooling.

Conventionally, as shown in FIG. 1, in an air conditioning ventilation fan, a heat exchange element 1o1 is fixed at the intersection of an exhaust ventilation passage and an air supply ventilation passage, and the exhaust vane 102 and the supply air vane 103 are rotated by a motor 104 to form the heat exchange element. Heat exchange was performed from 101Vc. The heat exchanger plate of the heat exchange element 101 is generally made of moisture permeable paper or the like, but paper originally has a low thermal conductivity, and humidity is exchanged by passing through the paper, so the heat exchange rate is low. The temperature was not high enough, and dust in the exhaust air and air supply adhered to the surface of the paper, reducing the thermal conductivity and humidity exchange rate.

For this reason, a filter 105 was installed at the exhaust air and air supply inlets of the heat exchange element 101 to remove dust, but minute particles passed through the filter 105, resulting in the reduction in heat exchange efficiency as described above. Further, the filter 105 itself becomes a resistance, which is not preferable.

The air-conditioning ventilation fan performs its function during cooling and heating, but in the spring and autumn seasons, the exhaust air and supply air pass through the heat exchange element 101, even though heat exchange is not reliable. Air volume cannot be used effectively, and conventional air-conditioning ventilation fans can only perform total heat exchange ventilation or sensible heat exchange ventilation. For example, in basements, total heat exchange ventilation is usually sufficient, but in the summer the humidity is high. Although it is necessary to carry out sensible heat exchange ventilation, it has the disadvantage of not being able to do so. Also, when heating and cooling, there is a considerable temperature difference between the ceiling and the floor, so it is desirable to install a circulator, but it is not possible due to cost, space, etc. to install an air conditioner, an air conditioning ventilation fan, and a circulator in the same room. Ta.

The present invention solves these conventional drawbacks, and one embodiment thereof will be described below with reference to FIGS. 2 to 11.

In Figs. 2 to 5, 1 is a main body having an outdoor suction port 2, an outdoor discharge port 3, and a partition plate 4, and 6 is a louver having an indoor suction port 6 and an indoor discharge lower, which is fitted into the main body 1. has been done. 8 has a rotation shaft 9 serving as a rotation center axis, and a motor 1o
The heat exchanger plate 11 is a heat exchange element that is rotated and stopped at a predetermined position by a heat transfer plate 11 having a moisture-absorbing material on both sides of a moisture-impermeable material.
and spacer plates 12 having hygroscopic properties are alternately laminated. 13a, 13b, 13c, 13d are main body 1
partition plates 14a, 14b, 14c formed in the.

14d is a partition plate formed on the louver 5, and the ends thereof are in contact with the edge of the heat exchange element. 16 is an exhaust vane, 16 is an exhaust casing, 17 is an air supply vane, 18 is an air supply casing, and 19 is a motor for rotating the exhaust vane 16 and the air supply vane 17.

In the above configuration, M→A' indicates an exhaust ventilation path, and indoor air enters the heat exchange element 8 through the indoor suction port 6 of the louver 6, passes through the exhaust casing 16, and then passes through the exhaust vane 15 rotated by the motor 19. The air is exhausted to the outside from the outdoor discharge port 3 of the storage body 1. In addition, B→B' indicates a supply air passage, in which outside air is introduced from the outdoor side suction port 2 of the main body 1 through the supply air casing 18 and into the heat exchange element 8 by the supply air vane 17 rotated by the motor 19. Air is supplied into the room from the indoor side discharge lower of the louver 5.

In this way, the indoor air flows along the exhaust ventilation path M → M', and the outside air flows along the supply air ventilation path B → B', and in the heat exchange element 8, sensible heat and latent heat (moisture) are exchanged. This will be described in detail below.

During cooling, the indoor air, which is lower in temperature and humidity than the outside air, enters the heat exchange element 8 along the exhaust ventilation path M → M′ and passes through the heat exchanger plate 11 of the heat exchange element 8 to the supply air ventilation path. B-+B
Sensible heat is taken away from the outside air supplied into the room along ', and moisture is still desorbed from the moisture absorbing material of the heat exchanger plate 11 and the spacer plate 12,
It becomes hot and humid and is exhausted outside. In this case, desorption heat (negative due to an endothermic reaction) is generated, which exchanges heat with the outside air and lowers the temperature of the high-temperature indoor air. Sensible heat is taken away from the outside air and used effectively. On the other hand, the outside air, which is hotter and more humid than the indoor air and has entered the heat exchange element 8 along the supply air passage B-+B', passes through the heat exchanger plate 9 of the heat exchange element 8 to the exhaust air passage. Sensible heat is imparted to the indoor air exhausted outdoors along the →mu', and moisture is adsorbed by the moisture absorbing material of the heat transfer plate 11 and the spacer plate 12, and the air is supplied indoors at a low temperature and low humidity. In this case, adsorption heat is generated, which exchanges heat with the indoor air to raise the temperature of the low-temperature outside air. It is resolved by giving.

Next, when the adsorption and desorption of moisture in the moisture absorbing material of the heat exchanger plate 11 and the spacer plate 12 reaches near saturation, the heat exchange element 8 is
When the motor 1o holds the rotation around the rotating shaft 9, the outside air passes through the layer of the heat exchange element 8 that the indoor air had passed through before rotation, and this layer has a low temperature and low humidity due to the indoor air. The sensible heat of the outside air is taken away by the heat transfer plate 11 and the spacer plate 12, moisture is adsorbed, and the air is supplied into the room at a lower temperature and lower humidity than the outside air. Then, the sensible heat is accumulated in the heat exchanger plate 11 and the spacer plate 12 and becomes saturated, and is taken away by the indoor air exhausted to the outside via the heat exchanger plate 11. In addition, heat of moisture adsorption is generated, which is applied to the exhausted indoor air via the heat exchanger plate 11 as described above. On the other hand, the indoor air will pass through the layer of the heat exchange element 8 through which the outside air has passed, and the air passing through the heat exchanger plate 11 and the spacing plate 12 of this layer, which has become high temperature and high humidity due to the outside air, will pass through the layer of the heat exchange element 8. Sensible heat is applied to the air, moisture is desorbed, and the air becomes hotter and more humid than indoor air and is exhausted outdoors. The sensible heat stored in the heat exchanger plate 11 and the spacer plate 12 is soon radiated, and from the outside air supplied into the room, the heat exchanger plate 11
Sensible heat will be taken away through this. In addition, the heat of desorption of water (
As a result of the endothermic reaction, an endothermic reaction occurs, but this is effectively used to remove as sensible heat from the supplied outside air via the heat exchanger plate 11, as described above.

This operation is repeated to perform total heat exchange ventilation between indoor air and outdoor air, but sensible heat can be exchanged not only through the heat exchanger plate 11, but also through heat storage and heat radiation, and moisture still remains. The exchange is carried out by adsorption and desorption between the adsorption plate of the heat transfer plate 11 and the spacing plate 12, and the heat of adsorption and desorption can also be effectively utilized via the heat transfer plate 11, eliminating the need for it to remain permanently. Compared to exchanging sensible heat and moisture through a humid heat exchanger plate, the total heat exchange rate is considerably improved. Note that during heating, the heat exchange rate is improved by a similar effect.

In addition, even if dust adheres to the end face of the heat exchange element 8, which was the inlet at some point in the exhaust ventilation path and the supply air ventilation path,
By rotating the heat exchange element 8 by 90 degrees, it becomes an outlet and dust is blown away, and by rotating the heat exchange element 8, the direction of the air on the heat exchange plate 11 is changed to '
Since this is the other way around, even the smallest amount of dust will not adhere to it and accumulate heat. This will prevent the air volume and heat exchange rate from decreasing due to dust clogging the end face of the heat exchange element 8 and the heat exchanger plate 11, and also prevent the filter from clogging. This has the advantage that it becomes unnecessary and requires almost no cleaning.

Furthermore, by connecting a duct to the indoor discharge port and the indoor suction port, total heat exchange in a room remote from the installation location of the main body 1, or total heat exchange in two rooms at the same time, becomes possible.

Indeed, unless the heat exchange element 8 is rotated, moisture will not be exchanged, and only sensible heat will be exchanged.For example, as in the case of using an open heating appliance, moisture is generated by combustion. Even if this condenses on walls and becomes harmful to buildings, furniture, etc., only the moisture can be directly discharged outdoors or condensed within the heat exchange element and discharged, and the sensible heat of the exhausted indoor air is transferred to the heat transfer plate 11. The outside air is supplied through the Further, the condensation heat generated when the moisture condenses inside the heat exchange element 8 described above is given to the outside air supplied via the heat exchanger plate 11, greatly reducing the temperature of the heated indoor air. 1. Ventilation that lowers humidity becomes possible. It has a big effect.

FIG. 6 and FIG. 7 show other embodiments of the present invention, and the same parts as those in the above-mentioned embodiment are designated and the explanation thereof will be omitted. In the figure, 2o is an opening provided in the louver 5 for opening the discharge port of the air supply casing 18 directly into the room, and 21 is an opening provided in the louver 6 for opening the suction port of the exhaust casing 16 directly into the room. The provided opening 22 is a damper for arbitrarily opening and closing the opening 2o, and 23 is a damper for arbitrarily opening and closing the opening 21.

In the above configuration, as shown in FIGS. 6 and 7, the damper 22.
When the motor 19 is operated with 23 open, indoor air is sucked in through the opening 21 of the louver 5, and the arrows x-, x
' As shown in FIG. On the other hand, outside air flows from the outdoor suction port 2 through the air supply vane 17 as shown by the arrow Y→Y', passes through the air supply casing 18, and then passes through the louver 5.
Air is supplied into the room through the opening 20 of.

In the exhaust ventilation path M→A' and the air supply ventilation path B→B', forced simultaneous supply and exhaust ventilation of indoor air and outside air can be performed without passing through the heat exchange element 8, which is a considerable resistance. During the intermediate period, the air volume inherent in the blower can be effectively used, and especially before and after the cooling period, cooling with outside air is also possible.

FIGS. 8 to 11 show still other embodiments of the present invention,
Identical parts are the same as those in the above-described embodiment, and description thereof will be omitted. In the figure, 24 is a circulation opening provided in the partition plate 4, and includes an exhaust ventilation path M→A' and a supply air ventilation path B-+B.
′ is connected. 26 is a shutter that is formed by an external shutter 27 fixed parallel to the shutter rotation axis 26 and an internal shutter 28 fixed perpendicular to the shutter rotation axis 26, and opens and closes around the shutter rotation axis. be. When the shutter 25 is opened as shown in FIGS. 8 and 9, the outdoor side suction port 2 and the outdoor side discharge port 3 are opened to the outside air by the external shutter 27, and the circulation opening 24 is closed by the internal shutter 28. 10th.
When the shutter 25 is closed as shown in FIG. 11, the outdoor side suction port 2 and the outdoor side discharge port 3 are closed by the external shutter 27 and cut off from the outside air, and the circulation opening 24 is opened by the internal shutter 28.

In the above configuration, when the shutter 25 is closed, the outdoor side suction port 2 and the outdoor side discharge port 3 are closed, and the circulation opening 24 is closed.
is opened, and the exhaust ventilation path M → M' and the supply air ventilation path B-+
B' is in communication, and the indoor air is sucked in through the opening 21 as indicated by the arrow z - * z', and after being sent from the exhaust casing 16 to the circulation opening 24 by the exhaust vane 16, it is transferred to the air supply casing 18. The air is discharged into the room from the opening 2o by the air supply vane 17. Therefore, it has the function of a circulator, and for example, during heating, warm air that has accumulated near the ceiling can be blown downward, eliminating discomfort caused by uneven temperature distribution and improving the heating effect. .

In the first embodiment of the present invention, the heat transfer plate 11 of the heat exchange element 8 is made of a moisture-impermeable material and has moisture-absorbing materials on both sides; For example, sensible heat and moisture can be exchanged through the heat exchanger plate 11, and the heat exchange rate is improved compared to exchanging only sensible heat through the heat exchanger plate as in the same embodiment.

If the heat exchange element 8 is stationary as in the conventional case,
Sensible heat and moisture are exchanged only through the heat transfer plate, but according to the present invention, the heat exchange element 8 rotates, and the heat transfer plate 11 and the spacing plate 12 exchange heat by storing and dissipating heat and adsorbing and desorbing moisture. This has the advantage of improved efficiency.

However, if the heat exchanger plate 11 and the spacing plate 12 of the heat exchange element 8 are made of moisture-impermeable and non-hygroscopic material, the heat exchanger plate 11
When the heat exchange element 8 is rotated, the heat exchange efficiency is improved due to the heat storage and heat dissipation action of the heat exchanger plate 11 and the spacing plate 12 as described above, and moisture is not exchanged. Therefore, it is extremely effective, for example, in cases such as a bathroom where it is necessary to protect the bathroom from moisture damage by discharging moisture, and to recover the sensible heat released outside by exhaust air to keep the bathroom warm.

As described above, according to the present invention, the heat exchange efficiency is improved by rotating the heat exchange element at predetermined time intervals and exchanging the exhaust ventilation passage and the supply air ventilation passage within the heat exchange element. It is possible to prevent dust from accumulating in the air, eliminate the need for a filter, prevent a reduction in heat exchange efficiency and air volume due to dust accumulation, and improve the durability of the heat exchange element. Furthermore, it is also possible to perform total heat exchange ventilation in separate rooms or in two rooms at the same time by connecting ducts. During the intermediate period when heating and cooling is not performed, forced simultaneous supply and exhaust ventilation can be performed without passing through a heat exchange element, increasing the ventilation air volume.Furthermore, the shutter can also be used as a circulator during heating and cooling. If the heat exchange element is made of a material that is permeable and hygroscopic, or a material that is impermeable and non-hygroscopic, the heat exchange efficiency will be improved, and heat exchange ventilation that is most suitable for the place where it is used frequently will be possible. It has become possible to provide an air conditioning ventilation fan with many excellent functions, and its effects are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a conventional air conditioning ventilation fan, Fig. 2 is a plan sectional view of an embodiment of the present invention, Fig. 3 is a side sectional view, Fig. 4 is a perspective view of the same, and Fig. 5 is the same. A perspective view of a heat exchange element, FIG. 6 is a cross-sectional plan view of another embodiment of the present invention, FIG. 7 is a cross-sectional view of the same side, and FIG. 8 is a plane view of still another embodiment of the present invention when the shutter is open. 9 is a sectional view of the same side, FIG. 10 is a plan sectional view when the shutter is closed, and FIG. 11 is a sectional view of the same side. 1...Body, 2-...Outdoor suction port, 3
...Outdoor outlet, 4...Partition plate, 5
...Louver, 6... Indoor suction port, End... Indoor discharge port, 8... Heat exchange element, 9... Rotating shaft, 1o...Motor, 1
1... Heat transfer plate, 12... Spacing plate, 13
...Division board, 14...Division board, 15.
...Exhaust vane, 16...Exhaust casing, 17...Air supply vane, 18...
Air supply casing, 19...Motor, 2o...
...opening, 21...opening, 22...
...Damper, 23...Damper-24...
...Circulation opening, 26...Shutter, 2
6... Shutter rotation axis, 27... External shutter, 28... Internal shutter. Name of representative Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 ; (Figure 14 Figure 6 Figure 5 Figure 711

Claims (1)

[Scope of Claims] (1) A main body having an exhaust passage communicating an indoor side suction port and an outdoor side discharge port, an air supply passage communicating the indoor side discharge port and an outdoor side suction port, and the exhaust ventilation passage. The exhaust ventilation path is constructed by arranging a plurality of blades for blowing air to the air supply air passage, a vane for blowing air to the air supply air passage, a motor for rotating them, and a plurality of heat exchanger plates having heat conductivity arranged at predetermined intervals. and a heat exchange element rotatably provided at the intersection of the air supply ventilation path, the heat exchange element forming at least two adjacent and independent air passages partitioned by the heat transfer plate, One of the passages becomes a part of the exhaust ventilation passage and the other passage becomes a part of the supply air passage, and the arrangement direction of the plurality of heat exchanger plates and the direction of the rotation center axis are set as described above. An air conditioning ventilation fan placed parallel to the direction of air flow between the indoor and outdoor suction ports and discharge rows. (2) The air conditioning ventilation fan according to claim 1, wherein the heat exchanger plate has a hygroscopic layer on both sides and is impermeable to moisture. (3) The air conditioning ventilation fan according to claim 1, wherein the heat exchanger plate has groove permeability. (4) The air conditioning ventilation fan according to claim 1, wherein the heat exchanger plate is provided with a layer of a material with excellent hygroscopicity on both sides. (6) A main body having an exhaust ventilation passage that communicates the indoor suction port with the outdoor discharge port, an air supply ventilation passage that communicates the indoor discharge port with the outdoor suction port, and a tank that blows air into the exhaust ventilation passage. It is configured by providing a plurality of blades, blades for blowing air to the air supply air passage, a motor for rotating them, and a plurality of heat exchanger plates having heat conductivity at predetermined intervals, and the exhaust air air passage and the air supply air a heat exchange element rotatably and stopably provided at any position where the paths intersect; The plurality of heat exchanger plates are configured to form passages, and are supported so that one of the passages becomes a part of the exhaust ventilation passage and the other passage becomes a part of the supply air ventilation passage, and the plurality of heat exchanger plates and the direction of the rotation center axis of the heat exchange element are arranged parallel to the flow direction of air between the suction port and the discharge port between the indoor side and the outdoor side, and the exhaust ventilation path and the indoor An air-conditioning ventilation fan comprising: an opening that communicates between the air supply passage and the room without a heat exchange element; and a damper that allows the opening to be opened and closed. (6) The heat exchange element is constructed by arranging heat transfer plates at predetermined intervals using hygroscopic spacer plates.
．． Air conditioning ventilation fan as described in section. (7) The air conditioning ventilation fan according to claim 5, wherein the heat transfer plate of the heat exchange element has moisture permeability. (8) The air conditioning ventilation fan according to claim 6, wherein the heat transfer plate is provided with a layer of a material with excellent hygroscopicity on both sides. (9) The air conditioning ventilation fan according to claim 5, wherein the main body is provided with a damper that closes the outdoor intake port and the discharge port.