KR20180054011A - heat exchange ventilation unit - Google Patents

Abstract

According to the present invention, a heat exchange ventilation system comprises: a ventilation unit body including a case, a heat exchanger, a discharge blower, a bypass cover, and a bypass damper; and an external filtering module including a flow path cover and an external filter. According to the present invention, a recycling mode can be operated by a filtering module without having to replace a heat exchanger and a filter unit.

Description

Heat exchange ventilation unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange ventilation system in which a recirculation mode operation in which indoor air is circulated and purified by a filtering module can be efficiently performed.

In general, various types of ventilation systems have been used to discharge the air in the room to the outside and to supply fresh air outside the room to the room.

Meanwhile, in the season when the indoor and outdoor temperature differences are large, such as during the summer and winter, it is common to operate cooling and heating to maintain a comfortable temperature of the indoor space. When the outdoor air is directly introduced into the room by the ventilation system, The efficiency of the cooling and heating is lowered, so that the waste of energy is considered to be severe.

In order to reduce this problem to some extent, a so-called heat exchange type ventilation system is used in which the increase in the cooling / heating load due to the temperature difference is reduced by allowing heat exchange with the indoor air before the outdoor air is introduced into the room.

The conventional heat exchange type ventilation system includes a case forming an internal space, an outside air suction port and an inside air discharge port provided on the outdoor side of the case, an outside air supply port and an inside air suction port provided on the inside side of the case, And a plurality of blowing fans.

Here, the meaning of each port name is as follows.

1) Outside air intake port (OA port): Port in which outdoor air is sucked into the case

2) Emission exhaust port (EA port): The port where the indoor air sucked into the case is discharged outdoors

3) External air supply port (SA port): The port where outdoor air sucked into the case is supplied to the room

4) Vent Suction Port (RA port): The port where the room air is sucked into the case

Such a conventional heat exchange type ventilation system basically has a configuration in which a so-called intake air flow path leading from an external air intake port to an external air supply port and an exhaust flow path leading from the internal air intake port to the internal air exhaust port intersect in a heat exchanger in the case.

Therefore, in the season in which cooling is performed in the indoor space as in the summer season, the outdoor hot air flowing into the indoor side through the intake flow path is heat-exchanged with the cold air in the room exhausted to the outdoor side through the exhaust flow path, Lt; / RTI >

On the other hand, in the season when the indoor heating operation is performed as in the winter season, the outdoor outdoor air flowing into the indoor side through the intake flow path is heat-exchanged with the warm air in the indoor space discharged to the outdoor side through the exhaust flow path, ≪ / RTI >

Accordingly, it is possible to reduce the heating loss by increasing the temperature of outdoor air flowing into the indoor space in winter, and reduce the cooling loss by lowering the outdoor air temperature flowing into the indoor space in summer.

On the other hand, in the spring period such as early spring or late summer, since the temperature condition of the outdoor air forms a temperature that is better for living than the temperature condition of the indoor air, it is necessary to adopt a method for introducing the outside air as it is, There is a problem in that the outdoor air and the indoor air are forcibly exchanged with each other due to the heat exchange type ventilation system of the present invention.

To solve this problem, a so-called bypass type heat exchange ventilation system having a bypass flow path has been developed.

In the conventional bypass type heat exchange ventilation system, a bypass flow path extending from the outside air suction port to the outside air discharge port is formed in the case without passing through a heat exchanger so that the outside air intake port and the bypass flow path are selectively communicated with each other .

According to this conventional technique, the general ventilation mode in which the heat exchange flow path is opened and the bypass flow path is closed, the bypass ventilation mode in which the heat exchange flow path is closed and the bypass flow path is opened is selectively switched by the operation of the damper, It is possible to avoid forcibly exchanging heat with outdoor air.

Meanwhile, in recent years, the frequency of occurrence of dust and fine dust is gradually increasing, and when the dust density of the dust is high, it is possible to prevent indoor air pollution by preventing the outside air from flowing into the room as much as possible .

However, if the state without ventilation is continued, the phenomenon that the fine dust generated in the room floats and the concentration of the carbon dioxide in the room is increased, and in particular, the harmful gas generated by the use of the gas cooking apparatus is not discharged, Air pollution is accelerated.

In order to solve such a problem, a ventilation system having a recirculating function for purifying the indoor air without ventilation has been found. As a conventional technique, there has been proposed a ventilation system using a ventilating unit (Patent Application No. 10-0690987 : Lim Hyung-sun).

According to this conventional technology, in addition to the existing heat exchange function, the harmful components causing the sick house syndrome are filtered by the filter unit during the recirculation of the indoor air, thereby improving the cleanliness of the indoor air. Filtration is also possible.

However, according to the related art, it is necessary to replace the heat exchanger with a large-capacity filter unit in order to sufficiently perform filtration operation for recirculating the room air. To accomplish this, a complex process of opening the case of the heat exchanger and removing the heat exchanger, There is a problem that the operation is very troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a heat exchange ventilation system which can operate in a recirculation mode by a filtering module without having to replace a heat exchanger and a filter unit.

According to an aspect of the present invention, there is provided a heat exchange ventilation system including a case, a heat exchanger provided in the case, a suction fan for sucking outdoor air into the case and supplying the indoor air to the indoor side, A discharge blower for sucking room air into the case and discharging the room air to the outside, and a bypass flow passage formed below the heat exchanger in the case for communicating the inside air suction space and the inside air discharge space without passing through the heat exchanger, A bypass cover, and a bypass damper for selectively allowing the bypass intake port and the bypass flow path to communicate with each other; A flow path cover attached to the outside of the case of the ventilation unit main body to form an external flow path so that room air flowing into the inside air discharge space through the bypass flow path goes to the outside of the case and leads to the outside air supply space; And a filtering module built in and configured to filter indoor air flowing through the external flow path.

The case of the ventilation unit body is provided with a vent hole for communicating the ventilation space with the external passage of the filtering module, and the external filter is disposed in proximity to the ventilation hole.

The case of the ventilation unit main body is provided with a recirculation damper for allowing the room air introduced into the external flow path through the ventilation hole to flow into the outside air supply space after passing through the external filter.

And an induction guide plate is provided in the flow path cover of the filtering module so that the room air introduced into the external flow path through the vent hole is concentratedly guided to the recirculation damper side after passing through the external filter.

In another aspect of the heat exchange ventilation system according to the present invention, the casing of the ventilation unit body is provided with a recirculation damper for selectively allowing the inside air discharge space and the external flow path of the filtering module to communicate with each other.

The case is provided with a vent hole through which the room air introduced into the external flow path through the recirculation damper flows into the outside air supply space after passing through the external filter, and the external filter is disposed close to the ventilation hole.

The filtering module includes an induction guide plate that induces the indoor air introduced into the external flow path through the recirculation damper to be concentrated in the external filter.

The external filter of the filtering module is arranged to be inclined away from the vent formed in the case.

According to another aspect of the present invention, there is provided a heat exchange ventilation system including: a partition panel that divides a part of an inner space of a case to form a recirculation flow passage; and a recirculation passage that is provided in the partition wall so as to allow the recirculation passage and the outside- And an internal filtering module including a damper and filter means for filtering indoor air introduced into the recirculation channel.

The partition wall panel is mounted in such a manner that both ends of the partition wall panel are fitted to opposite side walls of the case, respectively. The partition wall panel is formed with a vent hole for communicating the inside air discharge space in the case and the recirculation passage.

The filter unit may include a pre-filter and a main filter disposed in close contact with the pre-filter. The main filter may be a HEPA filter having a fine particle collecting function or a combination filter combining a fine particle collecting function and a deodorizing function Is used.

As described above, according to the heat exchange ventilation system of the present invention, it is possible to selectively use the general ventilation mode, the bypass ventilation mode, and the recirculation mode, and the filtering module, which can apply a large- As a result, it is possible to avoid the inconvenience of replacing the heat exchanger and the filter unit during the operation of the recirculation mode, thereby improving the usability.

1 is a perspective view showing an internal structure of a heat exchange ventilation system according to the present invention;
Figure 2a: Example of air flow in the ventilation mode of the heat exchange ventilation system according to the present invention
FIG. 2B is a view showing an air flow in the bypass ventilation mode of the heat exchange ventilation system according to the present invention. FIG.
Figure 2c: Example of air flow in the recirculation mode of the heat exchange ventilation system according to the invention
3 shows an internal structure of a heat exchange ventilation system according to the present invention and an example of an air flow in a recirculation mode (including an induction guide plate)
4 is a perspective view showing the internal structure of the heat exchange ventilation system according to another embodiment of the present invention;
Figure 5 is an illustration of airflow in a recirculation mode of a heat exchange ventilation system in accordance with another aspect of the present invention.
Fig. 6 is an exemplary view (including an induction guide plate) showing the air flow in the recirculation mode of the heat exchange ventilation system according to another embodiment of the present invention; Fig.
7 is an exploded perspective view showing a configuration of a heat exchange ventilation system according to another embodiment of the present invention;
8 is a perspective view showing the structure of a heat exchange ventilation system according to another embodiment of the present invention;
Figure 9: Example of air flow in recirculation mode of a heat exchange ventilation system according to another embodiment of the present invention

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

As shown in FIG. 1, the heat exchange ventilation system according to the present invention comprises a ventilation unit main body 10 and an external filtering module 40 combined therewith.

The ventilation unit main body 10 includes a case 20 and an outside air suction port 12 and an inside air discharge port 14 provided on an outdoor side surface of the case 20, A port 16 and an outside air supply port 18, a heat exchanger 30 provided in the case 20, a suction blower 32 for sucking outdoor air into the case 20 and supplying the indoor air to the room 20, A bypass cover 24 formed below the heat exchanger 30, a bypass cover 24 formed at a lower portion of the heat exchanger 30 so as to allow the bypass passage to be selectively in communication with the bypass air passage 16, And a bypass damper (26).

The bypass cover 24 constitutes a bypass flow path in which the inside air suction port 16 and the inside air discharge port 14 communicate with each other without passing through the heat exchanger 30.

The inside of the case 20 is provided with an outside air suction space 12a communicating with the outside air suction port 12, an inside air discharge space 14a communicating with the inside air discharge port 14, An air suction space 16a communicating with the outside air supply port 18 and an outside air supply space 18a communicating with the outside air supply port 18 are formed.

Various types of filters for filtering air are provided in the case 20 of the ventilation unit body 10. The outside air suction port 12 and the inside air discharge port 14 are selectively provided with a damper As shown in FIG.

The external filtering module 40 is attached to the outside of the case 20 of the ventilation unit body 10 so that the room air flowing into the inside air discharge space 14a through the bypass flow path goes out of the case 20, A flow path cover 42 for forming a recirculation flow path 40a so as to lead to the supply space 18a and an external filter 44 for filtering the inside air flowing through the recirculation flow path 40a.

It is preferable that the external filter 44 is applied to a large capacity that is larger in filtration area than the filter provided in the ventilation unit main body 10 and has excellent filtration performance because the external filtering module 40 is configured outside the case 20 This is because the installation space is limited by the nature of the installation.

The case 20 of the ventilation unit body 10 is formed with a ventilation hole 20a through which the ventilation space 14a communicates with the recycling passage 40a of the external filtering module 40, And is arranged close to the vent hole 20a.

The recirculation passage 40a is connected to the case 20 through a recirculation passage 40a through the external filter 44 and then recycled to the outside air supply space 18a. A damper 22 is provided.

The flow path cover 42 is provided with an induction guide plate 40 for introducing the indoor air introduced into the recirculation passage 40a through the ventilation hole 20a to the recirculation damper 22 side through the external filter 44, (See FIG. 3).

The heat exchange ventilation system according to the present invention configured as described above is divided into three modes of general ventilation mode, bypass ventilation mode, and recirculation mode. The operation of each mode will be described below.

1) In the general ventilation mode, indoor air is sucked into the indoor suction space 16a through the indoor air suction port 16 while the bypass flow path is blocked by the bypass damper 26, And is exhausted to the outside through the exhaust port 14 (see FIG. 2A)

In addition, outdoor air sucked into the outside air suction space 12a through the outside air suction port 12 is also heat-exchanged with indoor air while passing through the heat exchanger 30, and then supplied to the room through the outside air supply port 18 do.

The general ventilation mode can be regarded as a basic operation mode normally performed by the heat exchange ventilation system. As the outdoor air introduced into the case 20 passes through the filter in the case 20, fine dust, yellow dust, Of the pollutants are filtered and then supplied to the room.

In the general ventilation mode, the recirculation damper 22 maintains the closed state so that the room air does not flow to the outside air supply space side via the recirculation passage 40a of the external filtering module 40.

2) In the bypass ventilation mode, the bypass passage is opened by the bypass damper 26, and the room air is introduced into the bypass passage through the indoor intake port 16 in a state where the indoor air suction space 16a is shut off. And is discharged to the outside through the exhaust port 14 without passing through the heat exchanger 30. (See FIG. 2B)

At this time, the outdoor air sucked into the case 20 through the outdoor air suction port 12 is supplied to the room through the outdoor air supply port 18 through the heat exchanger 30, but the outdoor air supplied to the indoor space, The indoor air to be discharged does not exchange heat with each other.

Therefore, the bypass ventilation mode can be regarded as a mode which is usefully used for simple ventilation, such as during a heat cycle in which no heat exchange action is required.

The recirculation damper 22 remains closed even in the bypass ventilation mode so that the room air does not flow toward the outside air supply space via the recirculation passage 40a of the external filtering module 40. [

3) In the recirculation mode, as in the bypass ventilation mode, with the bypass flow path opened, the exhaust port 14 is closed, the recirculation damper 22 is opened, and the outdoor air intake port 12 is closed (See Fig. 2C)

Accordingly, the indoor air sucked into the case 20 through the indoor air suction port 16 flows into the indoor air discharge space 14a through the bypass flow path without passing through the heat exchanger 30, and then flows into the air vent 20a And flows into the recirculation passage 40a side of the external filtering module 40 through the passage.

The indoor air flowing into the recycling passage 40a side of the external filtering module 40 is first filtered through the external filter 44, Is supplied to the outside air supply space (18a) in the case (20) through the recirculation damper (22) and then to the room side from the outside air supply port (18).

In the recirculation mode, outdoor air is not introduced into the room, so that external pollutants are prevented from being introduced into the room to further contaminate the room air. The indoor air is recirculated while the external filter (40) 44, the cleanliness of the room air is improved.

3, when the induction guide plate 46 is provided, the indoor air introduced into the recirculation passage 40a passes through the external filter 44 and is guided by the induction guide plate 46 to be unnecessarily diffused And flows toward the recirculation damper 22 side.

4, the heat exchange ventilation system according to the present invention includes a case 20 of the ventilation unit main body 10 and a recirculation passage 40a of the external filtering module 40, And the recirculation damper 22 for selectively communicating the recirculation damper 22 with the recirculation damper 22. The room air introduced into the recirculation passage 40a through the recirculation damper 22 is introduced into the case 20 through the external filter 44, A ventilation hole 20a for re-entering the outside air supply space 18a may be formed and the external filter 44 may be disposed adjacent to the ventilation hole 20a.

The external filter 44 may be disposed at an angle to the air vent 20a formed in the case 20.

Here, the induction guide plate 46 may be provided to induce the indoor air introduced into the recirculation passage 40a through the recirculation damper 22 to be concentrated to the external filter 44.

5, in the recirculation mode, the indoor air introduced into the recirculation passage 40a of the external filtering module 40 passes through the external filter 44 first, But is discharged to the outside air supply space 18a of the ventilation unit main body 10 via the external filter 44 after flowing through the recirculation passage 40a.

Here, the arrangement structure of the recirculation damper 22 and the external filter 44 considers the factors (the size and arrangement position of the case and the flow path cover) influencing the flow pattern of the room air flowing in the recirculation flow path 40a It is preferable to be selectively adopted.

When the induction guide plate 46 is provided as shown in FIG. 6, the induction guide plate 46 is interlocked when the recirculation damper 22 is opened, so that the indoor air introduced into the recirculation passage 40a is unnecessarily spread And is concentrated and flows toward the external filter 44 side by the guide guide plate 46 without flowing.

In addition, since the external air is blown from the recirculation passage 40a to the external filter 44, the external filter 44 is arranged to be slanted away from the ventilation hole 20a, Is prevented.

In addition, the external filtering module 40 according to the present invention can be configured to be detachable from the ventilation unit body 10.

The external filtering module 40 is detachably attachable to the ventilating unit main body 10 so that the mounting structure is such that the flow path cover 42 is detachably attached to the case 20.

Here, it is preferable that the flow path cover 42 is formed in such a manner that one side thereof facing toward the case 20 is opened.

Therefore, when the external filtering module 40 is configured to be detachable from the ventilation unit main body 10, for example, when only maintenance of the external filtering module 40 is required, such as replacement of the external filter 44 So that the operation can be easily performed in a state in which the external filtering module 40 is detached.

7 and 8, the heat exchange ventilation system according to another embodiment of the present invention includes a case 20, a heat exchanger 30 provided in the case 20, A blower 34 for sucking room air into the case 20 and discharging the room air to the outside of the case 20; a blower 34 for blowing air in the case 20 to the outside of the heat exchanger 30 A bypass cover 24 which constitutes a bypass flow passage constituted so that the inside air suction space 16a and the inside air discharge space 14a communicate with each other without passing through the heat exchanger 30, A bypass damper 26 for selectively communicating the flow path and an internal filtering module 50 for forming a recirculation flow path 50a in the case 20 and filtering indoor air introduced into the recirculation flow path 50a, .

The internal filtering module 50 includes a partition wall panel 52 mounted in the case 20 and defining a part of the internal space of the case 20 to form a recirculation passage 50a, A recirculation damper 54 for allowing the recirculation passage 50a and the outside air supply space 18a in the case 20 to selectively communicate with each other and a filter means for filtering indoor air introduced into the recirculation passage 50a .

The inner filtering module 50 is installed in such a manner that the partition panel 52 is detachably attached to the case 20 and illustratively the partition panel 52 covers the case 20 And can be mounted in such a manner that both ends thereof are respectively fitted to the side wall.

The partition wall panel 52 is formed with a vent hole 52a through which the exhaust gas discharge space 14a in the case 20 communicates with the recirculation passage 50a and the filter means includes a pre- And a main filter 552 disposed in close contact with the pre-filter 551.

As the main filter 552, a HEPA filter having a fine particle collecting function or a combination filter combining a fine particle collecting function and a deodorizing function can be used.

The pre-filter 551 and the main filter 552 constituting the filter means are arranged in close proximity to the vent 52a in order.

The heat exchanging ventilation system according to another embodiment of the present invention configured as described above operates in three modes, i.e., a general ventilation mode, a bypass ventilation mode, and a recirculation mode.

In the recirculation mode, the bypass port is opened, the exhaust port 14 is closed, the recirculation damper 54 is opened, and the air ventilation mode and the bypass ventilation mode are performed in the same manner as in the previous embodiment. The port 12 is closed.

9, the indoor air sucked into the case 20 through the indoor air suction port 16 flows into the indoor air discharge space 14a through the bypass flow path without passing through the heat exchanger 30 And flows into the recirculation passage 50a through the vent hole 20a formed in the partition wall panel 52. [

The room air flowing into the recirculation channel 50a is filtered while passing through the pre-filter 551 and the main filter 552 constituting the filter unit. Is supplied to the outside air supply space (18a) in the case (20) through the recirculation damper (54) and then supplied from the outside air supply port (18) to the room side.

In the recirculation mode, outdoor air is not introduced into the room, so that pollutants from the outside are prevented from entering into the room to further contaminate the room air. While the room air is recirculated, the pre-filter 551 of the internal filtering module 50, And the main filter 552, thereby improving the cleanliness of the room air.

10: ventilation unit main body 12: outside air intake port
14: Exhaust port 16: Exhaust port
18: Emitting supply port 20: Case
22: Recirculation damper 24: Bypass cover
26: bypass damper 30: heat exchanger
40: External filtering module 40a: Recirculation flow path
44: outer filter 46: guide plate
50: Internal filtering module 50a: Recirculation flow path
52: bulkhead panel 54: recirculation damper
551: pre-filter 552: main filter

Claims (14)

An outdoor air suction port and an air discharge port are provided on the outdoor side,
An indoor suction port and an outdoor air supply port are provided on the indoor side,
An outside air suction space communicating with the outside air suction port,
An inside air discharge space communicating with the inside air discharge port,
An inside air suction space communicating with the inside air suction port,
A case configured to house an outside air supply space communicating with the outside air supply port;

A heat exchanger provided in the case;
A suction blower that sucks outdoor air into the case and supplies the outdoor air to the indoor side; an exhaust blower that sucks indoor air into the case and discharges the outdoor air to the outdoor side;
A bypass cover provided below the heat exchanger in the case to constitute a bypass flow path for allowing the inside air suction space and the inside air discharge space to communicate without passing through the heat exchanger;
And a bypass damper for selectively allowing the indoor air suction port and the bypass flow path to communicate with each other,
A flow path cover attached to the outside of the case of the ventilation unit main body to form a recirculation flow path so that room air flowing into the inside air discharge space through the bypass flow path goes to the outside of the case and leads to the outside air supply space; And an external filter for filtering indoor air flowing through the recirculation channel,
And a heat exchanger.
The method according to claim 1,
The casing of the ventilation unit main body is provided with a vent hole through which the ventilation space communicates with the recycling passage of the external filtering module, and the external filter is disposed in proximity to the ventilation hole
A heat exchange ventilation system
3. The method of claim 2,
The case of the ventilation unit main body is provided with a recirculation damper for selectively introducing the room air introduced into the recirculation flow passage through the ventilation passage to the outside air supply space after passing through the external filter
Wherein the heat exchanger is a heat exchanger.


The method of claim 3,
An induction guide plate is provided in the flow path cover of the external filtering module so that the room air introduced into the recirculation flow path through the vent hole is concentratedly guided to the recirculation damper side through the external filter
Wherein the heat exchanger is a heat exchanger.
5. The method of claim 4,
The casing of the ventilation unit main body is provided with a recirculation damper for selectively communicating the inside air discharge space with the recirculation passage of the external filtering module
Wherein the heat exchanger is a heat exchanger.
6. The method of claim 5,
The case is formed with a vent hole through which the room air introduced into the recirculation flow path through the recirculation damper flows into the outside air supply space after passing through the external filter, and the external filter is disposed in proximity to the vent hole
Wherein the heat exchanger is a heat exchanger.
The method according to claim 6,
Wherein the outer filter of the outer filtering module is arranged to be inclined away from the vent hole formed in the case
Wherein the heat exchanger is a heat exchanger.
The method according to claim 6,
And the external filtering module includes an induction guide plate for concentrating indoor air introduced into the recirculation flow path through the recirculation damper toward the external filter
Wherein the heat exchanger is a heat exchanger.
The method according to claim 1,
Wherein the external filtering module is detachably coupled to the ventilation unit main body.


An outdoor air suction port and an air discharge port are provided on the outdoor side,
An indoor suction port and an outdoor air supply port are provided on the indoor side,
An outside air suction space communicating with the outside air suction port,
An inside air discharge space communicating with the inside air discharge port,
An inside air suction space communicating with the inside air suction port,
A case configured to house an outside air supply space communicating with the outside air supply port;
A heat exchanger provided in the case;
A suction blower that sucks outdoor air into the case and supplies the outdoor air to the indoor side; an exhaust blower that sucks indoor air into the case and discharges the outdoor air to the outdoor side;
A bypass cover provided below the heat exchanger in the case to constitute a bypass flow path for allowing the inside air suction space and the inside air discharge space to communicate without passing through the heat exchanger;
A bypass damper for selectively communicating the bypass suction port with the bypass passage;
A partition wall panel mounted in the case and defining a part of an inner space of the case to form a recirculation flow path; a recirculation damper provided on the partition wall panel so as to selectively communicate the recirculation flow path and the outside air supply space; An internal filtering module configured as filter means for filtering the introduced indoor air;
And a heat exchanger.
11. The method of claim 10,
Wherein the internal filtering module is installed in such a manner that the partition panel is detachably attached to the case
Wherein the heat exchanger is a heat exchanger.
11. The method of claim 10,
Wherein the partition wall panel is provided with a vent hole through which the inside air discharge space in the case communicates with the recirculation passage
Wherein the heat exchanger is a heat exchanger.
11. The method of claim 10,
Wherein the filter means comprises a pre-filter and a main filter disposed in close contact with the pre-filter, and the main filter is a HEPA filter having a fine particle collecting function.
14. The method of claim 13,
Wherein the main filter is a combination filter using a combination of a fine particle collecting function and a deodorizing function.

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