KR101790696B1 - Heat exchange type ventilator having bypass and recirculation function - Google Patents

Abstract

The present invention provides a heat exchange type ventilator having a bypass and a recirculation function capable of preventing the generation of condensation in the entire area of the ventilator and realizing a recirculation mode of the indoor air, thereby creating a pleasant indoor environment. .
In order to achieve this, the present invention is characterized by comprising a first exhaust chamber 10 into which room air flows, a second exhaust chamber 20 through which room air passed through the first exhaust chamber 10 is discharged outdoors, A second air supply chamber 40 for supplying outdoor air passed through the first air supply chamber 30 to the room and a second air supply chamber 40 for supplying air to the second air supply chamber 10 from the first exhaust chamber 10, (50) for exchanging heat between indoor air flowing into the first air supply room (20) and outdoor air flowing from the first air supply room (30) to the second air supply room (40), characterized in that the heat exchange unit A diaphragm 60 is disposed below the first exhaust chamber 10, the second exhaust chamber 20, the first feed chamber 30, the second feed chamber 40, and the total enthalpy heat exchanger 50, The bypass passage 70 is formed in a manner that the indoor air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 without passing through the total enthalpy heat exchanger 50, Second The indoor air introduced into the first exhaust chamber 10 flows to the first air supply chamber 30 side in the recirculation mode for indoor air cleaning and condensation prevention, Thereby providing a recirculation flow path.

Description

[0001] The present invention relates to a heat exchange type ventilator having a bypass and recirculation function,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange type ventilator having a bypass and a recirculation function, and more particularly, To a heat exchanging type ventilator having a bypass and a recirculating function capable of effectively preventing condensation.

In general households and offices, there is installed a cooling and heating device to perform indoor cooling and heating according to the seasonal changes. Such a cooling and heating device includes an air conditioner for cooling and heating the indoor air by cooling and heating the indoor air , And boilers.

Since the indoor air such as a general home and office where the air conditioner and the heating device are installed is maintained in a hermetically closed state in order to improve the cooling and heating efficiency, Odor is generated or foreign matter such as dust becomes floating. Accordingly, the room air is ventilated every predetermined time to remove the odor or dust from the room. It is necessary to ventilate the contaminated room air to the outside while maintaining the room temperature, and to ventilate the fresh outdoor air to the room Device is used.

The conventional ventilating apparatus includes a first air supply room into which outdoor air flows, a second air supply room that supplies outdoor air via the first air supply room to the room, a first exhaust chamber into which room air flows, A second exhaust chamber for exhausting the indoor air via the room to the outside, heat exchange is performed between the indoor air flowing into the second exhaust chamber from the first exhaust chamber and the outdoor air flowing into the second air supply chamber from the first feed chamber An exhaust heat exchanger, an air supply blower for forcedly drawing the outdoor air into the room, and an air blower for forcibly discharging the room air outdoors.

Generally, when the outside wall is installed in an insulated space in an apartment or a building, condensation may be minimized inside the ventilation unit. However, when the outside wall of the building is installed in an unheated space, Condensation occurs in the inside of the ventilation apparatus due to a condition substantially similar to that of the outdoor space.

That is, when the temperature of outdoor air is low as in winter, the temperature of the space where the ventilator is installed is lowered. If the ventilator is not used for a long time, the temperature and humidity of the inside of the ventilator Condensation occurs in the first exhaust chamber where high indoor air flows).

In order to prevent condensation from occurring in a ventilator, conventionally, an exhaust fan is sucked into the room by sucking in indoor air, or a heater is installed inside the ventilator to remove condensation by heat generated by the heater Respectively.

However, if the exhaust fan is operated for a certain period of time, the indoor pressure becomes negative pressure, so that contaminated and cold outdoor air can be mixed into the room, and condensation can be prevented only in a passage where room air flows to the outside, There is a limit in which condensation can not be prevented. When the condensation is removed by the heat generated by the heater, there is a problem that consumption of electric energy is increased.

As a prior art related to a ventilation device for preventing the occurrence of condensation, Japanese Patent No. 10-1162973 (a heat recovery type ventilation device provided with a dehumidifying function) is provided with an outdoor air inflow passage and an indoor air vent passage And a dehumidifying function is performed by bypassing the indoor air introduced into the discharge passage to the inflow passage side of the outdoor air by opening the damper and recirculating the indoor air to the indoor side.

However, since the damper is provided on the side wall of the ventilator, the volume of the ventilator is increased in order to secure the space for installing the damper, and the flow path through which the indoor air is recirculated is limited, There is a problem in that condensation can not be prevented over the entire area of the condenser.

On the other hand, there is a bypass type ventilator for performing outside air cooling in the conventional ventilator. This is configured such that heat exchange is not performed between exhausted indoor air and outdoor air to be supplied, so that outdoor air is cooled so that outdoor air is directly introduced into the indoor space, thereby reducing indoor temperature to a certain level. When the bypass mode is not used, air stagnates in the bypass passage, causing air pollution as well as dew condensation. As a result, There is a problem that it causes breeding.

On the other hand, Japanese Patent Application No. 10-0577252 discloses an air cleaning and ventilation system having an air cleaning function and a ventilation function. However, since the ventilation system and the air cleaning apparatus are separately constructed, have.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a ventilation apparatus and a ventilation system, which can prevent condensation in the entire area of the ventilation apparatus, The present invention has been made in view of the above problems.

In order to achieve the above object, the present invention provides a heat exchange type ventilator (1) having bypass and recirculation functions, comprising a first exhaust chamber (10) into which room air flows, a second exhaust chamber A second exhaust chamber 20 for exhausting the indoor air passed through the first compartment 30 to the outside, a first compartment 30 for introducing outdoor air into the room, a second compartment 30 for introducing outdoor air via the first compartment 30, And an outdoor air flowing from the first air supply room (30) to a second air supply room (40), and a second air supply room The first exhaust chamber 20, the first exhaust chamber 30, the second exhaust chamber 40, the first exhaust chamber 20, the second exhaust chamber 20, the first exhaust chamber 20, the second exhaust chamber 20, A bypass passage 70 is formed at a lower side of the total enthalpy heat exchanger 50 and a diaphragm 60 is interposed between the bypass passage 70 and the total heat exchanger 50. In the bypass mode for outdoor air cooling, The indoor air introduced into the first exhaust chamber 10 provides a bypass flow path through which the indoor air flows toward the second exhaust chamber 20 without passing through the total enthalpy heat exchanger 50, And a recirculation passage for allowing the room air introduced into the first exhaust chamber (10) to flow toward the first air supply chamber (30).

The first exhaust chamber 10 may be provided with a connection passage 11a communicating with the bypass passage 70 and a connection passage 11b communicating with the total enthalpy heat exchanger 50 side A second damper 22 is provided in the second exhaust chamber 20 for opening and closing a flow path for discharging the indoor air to the outside and a second damper 22 for opening / A third damper 32 for selectively opening and closing a connection passage 31a communicating with the bypass passage 70 and a connection passage 31b through which outdoor air flows into the first air supply chamber 30 is provided .

A communication hole 20a communicating with the bypass passage 70 may be formed on the bottom of the second exhaust chamber 20. [

In the recirculation mode, the first damper 12 is positioned such that the connection passage 11a communicating with the bypass passage 70 is closed and the connection passage 11b communicated with the total enthalpy heat exchanger 50 side is opened, The third damper 32 is connected to the bypass passage 70 through a connection path 31a which is open and a second damper 22 is disposed so that the indoor air is discharged to the outside, The indoor air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 and flows into the first exhaust chamber 10 through the second exhaust And then flows into the first feed chamber 30 after passing through the bypass passage 70 through the communication port 20a and flows into the first feed chamber 30 The introduced indoor air can be configured to flow to the indoor side after passing through the total enthalpy heat exchanger (50) and the second air supply room (40).

In the recirculation mode, the third damper (32) regulates the amount of outdoor air inflow by adjusting the opening amount of the connection passage (31b) into which the outdoor air flows into the first air supply room (30) The second damper 22 may be configured to adjust the amount of opening of the passage through which the room air is discharged to the outside in accordance with the amount of opening of the third damper 32. [

The second damper 22 may be an electric damper or a counter-wind preventing damper.

The first exhaust chamber 10 is provided with a fourth damper 16 for opening and closing a connection passage 11a communicating with the bypass passage 70 and a fourth damper 16 communicating with the total enthalpy heat exchanger 50 side A fifth damper 17 for opening and closing the connecting passage 11b and a sixth damper 24 for opening and closing a flow passage for discharging indoor air out to the second exhaust chamber 20, The first air supply chamber 30 is provided with a seventh damper 33 for opening and closing a connection passage 31a communicating with the bypass passage 70 and a third damper 33 for opening / An eighth damper 34 for opening and closing the connection passage 31b may be provided.

A communication hole 20a communicating with the bypass passage 70 may be formed on the bottom of the second exhaust chamber 20. [

The fourth damper 16 is located such that the connection passage 11a communicating with the bypass passage 70 is closed and the fifth damper 17 is located in the vicinity of the total enthalpy heat exchanger 50 And the sixth damper 24 is located such that the flow path through which the indoor air is discharged to the outside is closed and the seventh damper 33 is located in the bypass path The eighth damper 34 is located such that the connection passage 31b through which the outdoor air flows into the first air supply chamber 30 is closed so that the outdoor air flows into the first air supply chamber 30, The indoor air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 and flows into the second exhaust chamber 20 and then flows through the communication passage 20a to the bypass passage 70 The indoor air introduced into the first air supply room 30 flows into the first indoor unit 30 through the total enthalpy heat exchanger 50, Article may be configured to flow toward the room after having passed through the two-level air chamber (40).

The fourth damper 16 is positioned such that the connection passage 11a communicating with the bypass passage 70 is opened and the fifth damper 17 is positioned between the total enthalpy heat exchanger 50 And the sixth damper 24 is located such that the flow path through which the indoor air is discharged to the outside is closed and the seventh damper 33 is located in the bypass path The eighth damper 34 is located such that the connection passage 31b through which the outdoor air flows into the first air supply chamber 30 is closed so that the outdoor air flows into the first air supply chamber 30, A part of the room air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 and flows into the second exhaust chamber 20 and then passes through the communication port 20a, (70), and then flows into the first feeding chamber (30), and the remaining of the room air introduced into the first exhaust chamber (10) Passes through the bypass passage (70) and flows into the first feed chamber (30), and the first feed chamber (30) is connected to the bypass passage (70) May be configured to flow to the indoor side after passing through the total enthalpy heat exchanger (50) and the second air supply room (40).

In the recirculation mode, the eighth damper (34) adjusts the amount of outdoor air inflow by adjusting the opening amount of the connection passage (31b) into which the outdoor air flows into the first air supply room (30) (24) may be configured to adjust the amount of opening of the flow passage through which the indoor air is discharged outdoors corresponding to the amount of opening of the eighth damper (34).

The sixth damper 24 may be an electric damper or a counter-wind preventing damper.

The fourth damper 16 and the fifth damper 17 are respectively rotated about the hinge and are independently driven. The seventh damper 33 and the eighth damper 34 are respectively rotated around the hinge, Lt; / RTI >

A temperature sensor 13 and a humidity sensor 14 are provided on the indoor side of the first exhaust chamber 10 and the temperature sensed by the temperature sensor 13 is lower than the set temperature or the humidity sensor 14 And a controller 90 for controlling the recirculation mode to be performed when the sensed humidity is higher than the set humidity.

A filter 51 may be provided on one side of the total enthalpy heat exchanger 50 facing the first air supply room 30 to filter foreign substances contained in the recirculated indoor air.

A dust sensor 15 is provided on the indoor side of the first exhaust chamber 10 and controls the recirculation mode to be performed when the dust content in the air detected by the dust sensor 15 is higher than the predetermined dust content And may include a control unit 90.

According to the heat exchange type ventilator having the bypass and recirculation functions according to the present invention, the bypass passage, which can utilize both the bypass flow passage for indoor air and the recirculation flow passage for cleaning indoor air, The indoor air can be comfortably formed at the time of performing the recirculation mode and the condensation phenomenon can be effectively prevented over the entire area inside the ventilator.

Further, since the bypass passage is used as both the bypass passage and the recirculation passage and the connection passage for forming the recirculation passage is formed in the partition plate, the space for installing the damper for opening and closing the connection passage can be ensured and the volume of the ventilation device can be reduced And the manufacturing cost of the ventilator can be reduced.

In addition, in the recirculation mode, since the room air is recirculated via the bypass passage, compared with the case where only the conventional exhaust fan is operated or the preheater is used, the area where the condensation phenomenon of the ventilator is prevented is extended, Waste can be prevented.

Also, in the recirculation mode, indoor air and outdoor air can be ventilated by adjusting the inflow amount of the outdoor air and the indoor air discharge amount to correspond to each other, and the indoor pressure is maintained constant, so that the indoor space is contaminated and the cold outdoor air is introduced Can be prevented.

Further, a temperature sensor, a humidity sensor, and a dust sensor are installed on the indoor side of the first exhaust chamber, and the recirculation mode is performed based on the sensed temperature, humidity, and dust content, thereby improving the convenience of use of the ventilator .

1 is a schematic plan view (a) and a side schematic view (b) of a heat exchange type ventilator having a bypass and recirculation function according to an embodiment of the present invention,
Fig. 2 is an enlarged view of (a) the first damper shown in Fig. 1, (b) the third damper,
FIG. 3 is a control block diagram of the ventilator shown in FIG. 1;
4 is a schematic plan view (a) and a side schematic view (b) showing the heat exchange mode in the ventilator shown in Fig. 1,
5 is a schematic plan view (a) and a side schematic view (b) showing a bypass mode for outdoor air cooling in the ventilator shown in FIG. 1;
6 is a schematic plan view (a) and a side schematic view (b) showing a recirculation mode for indoor air cleaning and condensation prevention in the ventilator shown in Fig. 1,
7 is a plan schematic view and a side schematic view (b) of a heat exchange type ventilator having bypass and recirculation functions according to another embodiment of the present invention,
FIG. 8 is a control block diagram of the ventilator shown in FIG. 7;
9 is a schematic plan view (a) and a side schematic view (b) showing the heat exchange mode in the ventilator shown in Fig. 7,
10 is a schematic plan view (a) and a side schematic view (b) showing a bypass mode for outdoor air cooling in the ventilator shown in Fig. 7,
11 is a plan schematic view and (b) a side schematic view showing an embodiment of a recirculation mode for indoor air cleaning and condensation prevention in the ventilator shown in Fig. 7,
12 is a plan schematic view and (b) a side schematic view showing another embodiment of the recirculation mode for indoor air cleaning and condensation prevention in the ventilator shown in Fig. 7,
13 is a cross-sectional view of a state in which the flow path of the indoor air discharge port is closed (a) and the open state (b) when the second damper and the sixth damper are constituted by a backward-
14 shows (a) a fourth damper and a fifth damper, and (b) seventh damper and eighth damper.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, a heat exchange type ventilator 1 (hereinafter, referred to as a ventilator) having a bypass and a recirculation function according to an embodiment of the present invention includes a first (10), a second exhaust chamber (20) for exhausting the indoor air passed through the first exhaust chamber (10) to the outside, a first air supply room (30) into which outdoor air flows, A second air supply chamber 40 for supplying outdoor air passed through the first exhaust chamber 10 to the room and a second air supply chamber 40 for supplying outdoor air passing through the first air supply chamber 30 to the room, 30) to the outdoor air flowing into the second class air chamber (40).

The ventilator 1 of the present invention is provided with the first exhaust chamber 10, the second exhaust chamber 20, the first exhaust chamber 30 And a bypass passage 70 is provided below the diaphragm 60. The diaphragm 60 is provided with a bypass passage 70,

In addition, the ventilator (1) of the present invention includes a heat exchange mode in which heat exchange is performed between indoor air to be exhausted and outdoor air to be supplied, a bypass mode in which outdoor air is supplied to the indoor side without heat exchange with indoor air, And a mode setting unit (80) for selecting indoor air recirculation mode and indoor air recirculation mode for preventing dew condensation of the ventilating apparatus, wherein the mode setting unit (80) And a control unit 90 for controlling the operation.

The bypass passage 70 provides a bypass flow path for the indoor air in the bypass mode of the ventilator 1 and a recirculation flow path for the indoor air in the recirculation mode.

The indoor space of the first exhaust chamber 10 is provided with an indoor air inlet 11 through which indoor air flows in. The first exhaust chamber 10 is provided with a connection passage 11a communicating with the bypass passage 70, And a first damper 12 for selectively opening and closing the connection passage 11b communicating with the exchanger 50 side. The first damper 12 may be an electric damper that rotates the plate about the hinge 12a as shown in FIG. 2 (a).

The indoor air inlet 11 is provided with a temperature sensor 13, a humidity sensor 14 and a dust sensor 15 for detecting the temperature, humidity and dust content of the room air. However, the position where the temperature sensor 13, the humidity sensor 14, and the dust sensor 15 are installed is not limited thereto, and it may be installed at another position on the indoor side.

An indoor air discharge port (21) for discharging indoor air to an outdoor side is provided on an outdoor side of the second exhaust chamber (20). An indoor air discharge port A second damper 22 is provided. A communication hole 20a communicating with the bypass passage 70 is formed in the bottom of the second exhaust chamber 20 and a blowing fan 20a for forcibly sucking indoor air to the outdoor side is provided in the second exhaust chamber 20. [ (23).

The first air supply chamber 30 is provided with a connection passage 31a communicating with the bypass passage 70 and an outdoor air inlet 31 through which the outdoor air is introduced into the first air supply chamber 30. [ And a third damper 32 for selectively opening and closing the connection passage 31b through which air flows into the first chamber 30. The third damper 32 may include an electric damper that rotates the plate about the hinge 32a as shown in FIG. 2 (b).

An outdoor air outlet 41 through which the outdoor air is discharged to the indoor side is provided on the indoor side of the second air supply room 40. A blower for supplying air to the indoor side is provided inside the outdoor air outlet 41 43 are provided.

The total enthalpy heat exchanger (50) has a structure in which a flow passage for flowing indoor air and a flow passage for flowing outdoor air are alternately formed and heat exchange is possible between the indoor air and the outdoor air. One side of the total enthalpy heat exchanger (50) facing the first air supply chamber (30) is provided with a filter (51) for filtering the foreign air supplied or the recirculated indoor air. The filter 51 may be a pre-filter, a medium filter, a HEPA filter, a deodorization filter, or the like.

4 to 6, the operation in the heat exchange mode, the bypass mode and the recirculation mode of the ventilator 1 according to the embodiment of the present invention will be described.

4, in the heat exchange mode, the first damper 12 is closed by the connection passage 11a communicating with the bypass passage 70 and the connection passage 11b communicated with the total enthalpy heat exchanger 50 side And the third damper 32 is positioned such that the connecting passage 31a communicating with the bypass passage 70 is closed and the outdoor air is discharged from the outside The connection passage 31b through which air flows into the first chamber 30 is positioned to be opened. Then, the exhaust blower 23 and the air supply fan 43 are driven.

The indoor air flows into the first exhaust chamber 10 through the indoor air inlet 11 and then flows into the indoor air outlet 21 via the total enthalpy heat exchanger 50 and the second exhaust chamber 20, To the outdoor side. The outdoor air is introduced into the first air supply room 30 through the outdoor air inlet 31 and then discharged to the room side through the outdoor heat exchanger 50 and the second air supply room 40 through the outdoor air outlet 41 . The indoor air and the outdoor air pass through the total enthalpy heat exchanger (50) to perform heat exchange.

5, in the bypass mode, the first damper 12 has the connection passage 11a communicating with the bypass passage 70 and the connection passage 11b communicating with the total enthalpy heat exchanger 50 side And the third damper 32 is located such that the connecting passage 31a communicating with the bypass passage 70 is closed and the third damper 32 is closed The connection passage 31b through which air flows into the first chamber 30 is positioned to be opened. Then, the exhaust blower 23 and the air supply fan 43 are driven.

Accordingly, in the bypass mode, the indoor air is introduced into the first exhaust chamber 10 through the indoor air inlet 11, and then the flow direction is switched downward through the connection passage 11a to pass through the bypass passage 70 And the room air passed through the bypass passage 70 is flowed upward through the communication port 20a and flows into the second exhaust chamber 20 and then flows into the room air outlet 21, To the outdoor side. The outdoor air is introduced into the first air supply room 30 through the outdoor air inlet 31 and then discharged to the room side through the outdoor heat exchanger 50 and the second air supply room 40 through the outdoor air outlet 41 .

Therefore, heat exchange is not performed between the room air to be exhausted and the outdoor air to be supplied, and the outdoor air is supplied to the indoor side without changing the temperature.

6, in the recirculation mode, the first damper 12 is closed so that the connecting passage 11a communicating with the bypass passage 70 is closed and the connecting passage 11b communicating with the total enthalpy heat exchanger 50 side is opened And the third damper 32 is positioned so that the connection passage 31a communicating with the bypass passage 70 is opened and the outdoor air The connection passage 31b into which the first air chamber 30 flows is closed.

Then, the exhaust blower 23 and the air supply fan 43 are driven.

Accordingly, in the recirculation mode, the indoor air flows into the first exhaust chamber 10 through the room air inlet 11, then flows through the total enthalpy heat exchanger 50 into the second exhaust chamber 20, The room air flowing into the room 20 is flowed downwardly through the communication port 20a to pass through the bypass passage 70 and then flows upwardly through the connecting passage 31a The indoor air introduced into the first air supply chamber 30 passes through the filter 51 and is filtered and then passed through the total heat exchanger 50 and the second air supply chamber 40 And is discharged to the room side through the outdoor air discharge port (41).

Since the room air is circulated through the bypass passage 70 during the recirculation mode, indoor air flows into the bypass passage 70 formed over the entire lower portion of the ventilator 1, It is possible to prevent the occurrence of condensation in the entire area of the bypass passage 70 and to prevent the propagation of bacteria caused by air pollution which may be caused when the airflow is stagnated inside the bypass passage 70.

As another embodiment of the recirculation mode, the third damper 32 adjusts the flow rate of the outdoor air by adjusting the opening amount of the connection passage 31b into which the outdoor air flows into the first air supply chamber 30, The second damper 22 can be controlled to adjust the amount of opening of the flow path of the indoor air discharged to the outside of the room corresponding to the amount of opening of the third damper 32.

In this case, fresh outdoor air can be introduced into the indoor side together with the recirculation of the indoor air, and generation of sound pressure in the indoor space can be prevented, thereby preventing contaminated cold outdoor air from being introduced into the room.

On the other hand, when the temperature sensed by the temperature sensor 13 is lower than the set temperature, and the humidity sensed by the humidity sensor 14 is higher than the set humidity, the dust content in the air detected by the dust sensor 15 The control unit 90 controls the operations of the first damper 12, the second damper 22 and the third damper 32 so that the recirculation mode is performed and at the same time the blower 23 And the amount of air blowing in the air supply fan 43 can be controlled.

7 and 8, the constitution of the ventilator 1 according to another embodiment of the present invention will be described. The same members as those of the above-described embodiment are denoted by the same reference numerals, A description thereof will be omitted.

The present embodiment differs from the above-described embodiment in the structure of the damper provided in the first exhaust chamber 10, the second exhaust chamber 20, and the first feed chamber 30, The same can be applied.

In the present embodiment, the first exhaust chamber 10 is provided with a fourth damper 16 for opening and closing a connection passage 11a communicated with the bypass passage 70, and a fourth damper 16 connected to the total enthalpy heat exchanger 50 side A fifth damper 17 for opening and closing the passage 11b and a sixth damper 24 for opening and closing a passage through which indoor air is discharged outdoors are provided in the second exhaust chamber 20, The first class air chamber 30 is provided with a seventh damper 33 for opening and closing a connecting passage 31a communicated with the bypass passage 70 and a seventh damper 33 for opening and closing the connection passage 31a through which the outdoor air flows into the first air supply chamber 30, And an eighth damper 34 for opening / closing the first damper 31b.

9 to 12, the operation of the heat exchange mode, the bypass mode and the recirculation mode of the ventilator 1 according to the present embodiment will be described.

9, in the heat exchange mode, the fourth damper 16 is positioned so that the connecting passage 11a communicating with the bypass passage 70 is closed, and the fifth damper 17 is located in the total enthalpy heat exchanger 50 The seventh damper 33 is positioned to open the bypass passage 70 and the seventh damper 33. The sixth damper 24 is located such that the passage through which the room air is discharged to the outside is opened, And the eighth damper 34 is positioned such that the connection passage 31b through which outdoor air flows into the first air supply chamber 30 is opened.

Then, the exhaust blower 23 and the air supply fan 43 are driven.

The indoor air flows into the first exhaust chamber 10 through the indoor air inlet 11 and then flows into the indoor air outlet 21 via the total enthalpy heat exchanger 50 and the second exhaust chamber 20, To the outdoor side. The outdoor air is introduced into the first air supply room 30 through the outdoor air inlet 31 and then discharged to the room side through the outdoor heat exchanger 50 and the second air supply room 40 through the outdoor air outlet 41 . The indoor air and the outdoor air pass through the total enthalpy heat exchanger (50) to perform heat exchange.

10, the fourth damper 16 is positioned such that the connecting passage 11a communicating with the bypass passage 70 is opened and the fifth damper 17 is located in the total enthalpy heat exchanger 50, And the seventh damper 33 is positioned so as to communicate with the bypass passage 70. The seventh damper 33 is located so as to open the connecting passage 11b communicating with the bypass passage 70, And the eighth damper 34 is positioned such that the connection passage 31b through which the outdoor air flows into the first air supply chamber 30 is opened.

Then, the exhaust blower 23 and the air supply fan 43 are driven.

Accordingly, in the bypass mode, the indoor air is introduced into the first exhaust chamber 10 through the indoor air inlet 11, and then the flow direction is switched downward through the connection passage 11a to pass through the bypass passage 70 The indoor air passed through the bypass passage 70 is flowed upward through the communication port 20a to be introduced into the second exhaust chamber 20 and then passed through the indoor air outlet 21, To the outdoor side. The outdoor air is introduced into the first air supply room 30 through the outdoor air inlet 31 and then discharged to the room side through the outdoor heat exchanger 50 and the second air supply room 40 through the outdoor air outlet 41 .

Therefore, heat exchange is not performed between the room air to be exhausted and the outdoor air to be supplied, and the outdoor air is supplied to the indoor side without changing the temperature.

11, the fourth damper 16 is positioned so that the connecting passage 11a communicating with the bypass passage 70 is closed, and the fifth damper 17 is located close to the total enthalpy heat exchanger 50 side And the sixth damper 24 is positioned so that the flow path through which the room air is discharged to the outside is closed and the seventh damper 33 is placed in communication with the bypass path 70 The connecting passage 31a is opened so that the eighth damper 34 is positioned such that the connecting passage 31b through which outdoor air flows into the first feeding chamber 30 is closed.

Then, the exhaust blower 23 and the air supply fan 43 are driven.

Accordingly, in the recirculation mode, the indoor air flows into the first exhaust chamber 10 through the room air inlet 11, then flows through the total enthalpy heat exchanger 50 into the second exhaust chamber 20, The room air flowing into the room 20 is flowed downwardly through the communication port 20a to pass through the bypass passage 70 and then flows upwardly through the connecting passage 31a The indoor air introduced into the first primary air chamber 30 passes through the filter 51 and is filtered and then passed through the total enthalpy heat exchanger 50 and the second air supply chamber 40, And is discharged to the room side through the outdoor air outlet 41 via the outdoor air outlet 41. [

Referring to Fig. 12, as another embodiment of the recirculation mode, the fourth damper 16, as compared with the case of Fig. 11, is arranged in such a manner that the connecting passage 11a, which communicates with the bypass passage 70, .

In this case, a part of the indoor air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50, flows into the second exhaust chamber 20, passes through the communication port 20a, The other of the room air introduced into the first exhaust chamber 10 flows into the first air supply chamber 30 after passing through the bypass passage 70, The indoor air flowing into the first air supply room 30 flows into the first air supply room 30 after passing through the bypass passage 70 through the total enthalpy heat exchanger 50 and the second air supply room 30, Flows into the room side after passing through the air supply chamber (40).

According to this configuration, as compared with the recirculation mode according to the above-described FIG. 11, there is an advantage that the flow amount of the room air passing through the bypass passage 70 is further increased, and the condensation phenomenon can be prevented more effectively.

In the recirculation mode, the eighth damper 34 adjusts the amount of outdoor air inflow by adjusting the opening amount of the connection passage 31b into which the outdoor air flows into the first air supply chamber 30, The damper 24 may be configured to adjust the amount of opening of the flow passage through which the indoor air is discharged to the outside, corresponding to the amount of opening of the eighth damper 34.

The second damper 22 and the sixth damper 24 provided in the room air outlet 21 may be either an electric damper or a counter wind preventing damper. In the case of a counter wind preventing damper, an electric damper The structure can be simplified and the cost of parts can be reduced.

Fig. 13 is a schematic view for explaining the principle of the backward-flow preventing damper. The backward-flow preventing dampers 22 and 24 are configured such that a pair of rotary blades 22b, 22c, 24b and 24c are rotatably mounted on both sides of the shafts 22a and 22b So that the flow in the direction in which the room air is exhausted to the outside is allowed but the flow in the direction in which the outdoor air flows into the second exhaust chamber 20 is suppressed.

The pair of rotary vanes 22b, 22c, 24b, and 24c may be elastically supported so as to be opened only when a pressure equal to or higher than a set wind pressure is applied when the indoor air flows in the direction of exhausting the room outdoors.

In this configuration, the indoor air to be exhausted passes through the flow path 21a of the room air outlet 21 during the heat exchange mode or the bypass mode, so that the pair of rotary vanes 22b, 22c, 24b, and 24c The pair of rotary blades 22b, 22c, 24b, and 24c are connected to the indoor air discharge port (not shown) so that the indoor air flows into the bypass passage 70 during the recirculation mode, 21 so as to maintain the closed state of the flow path 21a.

14 (a), the fourth damper 16 is pivoted about the hinge 16a, and the fifth damper 17 is an electric damper (not shown) which is rotated about the hinge 17a And the fourth damper 16 and the fifth damper 17 may be independently driven.

The seventh damper 33 is pivoted about the hinge 33a and the eighth damper 34 is rotated by the electric damper 34 about the hinge 34a as shown in Figure 14 (b) And the seventh damper 33 and the eighth damper 34 can be independently driven.

As described above, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the scope of the present invention as defined in the appended claims. And such modifications are within the scope of the present invention.

1: Ventilation device 10: First exhaust chamber
11: indoor air inlet 12: first damper
13: Temperature sensor 14: Humidity sensor
15: Dust sensor 16: Fourth damper
17: fifth damper 20: second exhaust chamber
20a: communication port 22: second damper
23: exhaust blower 24: sixth damper
30: First compartment 31: Outdoor air inlet
32: third damper 33: seventh damper
34: Eighth damper 40: Second class air chamber
41: outdoor air outlet 43: blower for supply air
50: total heat exchanger 51: filter
60: diaphragm 70: bypass passage
80: Mode setting section 90:

Claims (16)

A first exhaust chamber 10 through which indoor air flows, a second exhaust chamber 20 through which indoor air passed through the first exhaust chamber 10 is discharged to the outside, a first exhaust chamber 30 through which outdoor air flows, A second air supply chamber 40 for supplying outdoor air via the first air supply chamber 30 to the room and a second air supply chamber 40 for supplying indoor air flowing into the second exhaust chamber 20 from the first exhaust chamber 10, And an outdoor heat exchanger (50) in which heat exchange is performed between outdoor air flowing from the first air supply room (30) to the second air supply room (40)
A diaphragm 60 is disposed below the first exhaust chamber 10, the second exhaust chamber 20, the first feed chamber 30, the second feed chamber 40, and the total enthalpy heat exchanger 50, A pass passage 70 is formed,
The bypass passage 70 is connected to the lower end of the first exhaust chamber 10, the second exhaust chamber 20, the first feed chamber 30, the second feed chamber 40 and the total enthalpy heat exchanger 50 Is formed over the entire area,
In the bypass mode for outdoor air cooling, the bypass passage 70 is opened so that room air introduced into the first exhaust chamber 10 passes through the bypass passage 70 without passing through the total enthalpy heat exchanger 50 To the second exhaust chamber (20) side,
In the recirculation mode for indoor air cleaning and dew condensation prevention, the bypass passage (70) opens the indoor air introduced into the first exhaust chamber (10) through the bypass passage (70) (30), thereby preventing condensation on the entire area of the heat exchange type ventilator and preventing air pollution due to stagnation of air flow in the bypass passage (70) Wherein the heat exchanger has a bypass and a recirculating function. The method according to claim 1,
A first damper 12 for selectively opening and closing a connection passage 11a communicating with the bypass passage 70 and a connection passage 11b communicating with the total enthalpy heat exchanger 50 is formed in the first exhaust chamber 10, ),
The second exhaust chamber (20) is provided with a second damper (22) for opening and closing a flow path through which room air is discharged outdoors,
The first air supply chamber 30 is provided with a connection passage 31a communicating with the bypass passage 70 and a connection passage 31b through which outdoor air flows into the first air supply chamber 30, And a third damper (32) are provided on the upper surface of the heat exchanger. 3. The method of claim 2,
And a communication hole (20a) communicating with the bypass passage (70) is formed on the bottom of the second exhaust chamber (20). The method of claim 3,
In the recirculation mode,
The first damper 12 is located such that the connection passage 11a communicating with the bypass passage 70 is closed and the connection passage 11b communicated with the total enthalpy heat exchanger 50 side is opened,
The second damper (22) is located such that the flow path through which the indoor air is discharged to the outside is closed,
The third damper 32 is positioned such that the connection passage 31a communicating with the bypass passage 70 is opened and the connection passage 31b through which outdoor air flows into the first air supply chamber 30 is closed,
The indoor air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 and flows into the second exhaust chamber 20 and then passes through the communication port 20a, The indoor air introduced into the first air supply room 30 flows into the first air supply room 30 after passing through the total enthalpy heat exchanger 50 and the second air supply room 40, And then flows back to the inside of the room. 5. The method of claim 4,
In the recirculation mode,
The third damper 32 adjusts the flow rate of the outdoor air by adjusting the opening amount of the connection passage 31b into which the outdoor air flows into the first air supply chamber 30,
And the second damper (22) adjusts the amount of opening of the flow path through which the indoor air is discharged to the outside in accordance with the amount of opening of the third damper (32). The heat exchanging type air conditioner Device. 3. The method of claim 2,
And the second damper (22) is an electric damper or a backward-flow preventing damper. The method according to claim 1,
The first exhaust chamber 10 is provided with a fourth damper 16 for opening and closing a connection passage 11a communicating with the bypass passage 70 and a connection passage 11b communicating with the total enthalpy heat exchanger 50 side, And a fifth damper 17 for opening /
The second exhaust chamber (20) is provided with a sixth damper (24) for opening and closing a flow path through which room air is discharged outdoors,
The first air supply chamber 30 is provided with a seventh damper 33 for opening and closing a connection passage 31a communicating with the bypass passage 70 and a third damper 33 for opening / And an eighth damper (34) for opening and closing the connection passage (31b). 8. The method of claim 7,
And a communication hole (20a) communicating with the bypass passage (70) is formed on the bottom of the second exhaust chamber (20). 9. The method of claim 8,
In the recirculation mode,
The fourth damper 16 is located such that the connection passage 11a communicating with the bypass passage 70 is closed and the fifth damper 17 is located between the connection passage 11b communicating with the total enthalpy heat exchanger 50 side, Is opened,
The sixth damper (24) is positioned such that the flow path through which the indoor air is discharged to the outside is closed,
The seventh damper 33 is located such that the connection passage 31a communicating with the bypass passage 70 is opened and the eighth damper 34 is connected to the first damper 33 The connecting passage 31b is closed,
The indoor air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 and flows into the second exhaust chamber 20 and then passes through the communication port 20a, The indoor air introduced into the first air supply room 30 flows into the first air supply room 30 after passing through the total enthalpy heat exchanger 50 and the second air supply room 40, And then flows back to the inside of the room. 9. The method of claim 8,
In the recirculation mode,
The fourth damper 16 is positioned such that the connecting passage 11a communicating with the bypass passage 70 is opened and the fifth damper 17 is located between the connecting passage 11b communicating with the total enthalpy heat exchanger 50 side, Is opened,
The sixth damper (24) is positioned such that the flow path through which the indoor air is discharged to the outside is closed,
The seventh damper 33 is located such that the connection passage 31a communicating with the bypass passage 70 is opened and the eighth damper 34 is connected to the first damper 33 The connecting passage 31b is closed,
A part of the room air introduced into the first exhaust chamber 10 passes through the total enthalpy heat exchanger 50 and flows into the second exhaust chamber 20 and then passes through the communication hole 20a, The other of the room air introduced into the first exhaust chamber 10 flows into the first air supply chamber 30 after passing through the pass passage 70, 11a, passes through the bypass passage 70, and then flows into the first feed chamber 30,
And the indoor air flowing into the first air supply room (30) flows to the room side after passing through the total enthalpy heat exchanger (50) and the second air supply room (40) Device. 11. The method according to claim 9 or 10,
In the recirculation mode,
The eighth damper 34 adjusts the flow rate of the outdoor air by adjusting the opening amount of the connection passage 31b into which the outdoor air flows into the first air supply chamber 30,
Wherein the sixth damper (24) adjusts the amount of opening of the flow path through which the indoor air is discharged to the outside in accordance with the amount of opening of the eighth damper (34). Device. 8. The method of claim 7,
Wherein the sixth damper (24) is an electric damper or a backward-flow preventing damper. 8. The method of claim 7,
The fourth damper (16) and the fifth damper (17) are respectively rotated about the hinge and driven independently,
Wherein the seventh damper (33) and the eighth damper (34) are pivoted about the hinge and are driven independently of each other. The method according to claim 1,
A temperature sensor (13) and a humidity sensor (14) are provided on the indoor side of the first exhaust chamber (10)
If the temperature sensed by the temperature sensor 13 is lower than the set temperature,
When the humidity detected by the humidity sensor 14 is higher than the set humidity,
And a control unit (90) for controlling the recirculation mode to be performed. The method according to claim 1,
And a filter (51) for filtering foreign substances contained in the recirculated indoor air is provided on one side of the total enthalpy heat exchanger (50) facing the first air supply room (30) Heat exchange type ventilation device combined. 16. The method of claim 15,
A dust sensor (15) is provided on the indoor side of the first exhaust chamber (10)
And a controller (90) for controlling the recirculation mode to be performed when the dust content in the air detected by the dust sensor (15) is higher than the set dust content.

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