KR20210029319A - Euro-conversion system for variable internal and external air circulation purifier, and heat exchanger with it - Google Patents

Abstract

The present invention relates to a total heat exchanger having an inner and outer air circulation and purification function, which allows contaminated inner air discharged to the outside and introduced fresh outer air to exchange heat to reduce an energy loss. More specifically, the present invention relates to a variable inner and outer air flow passage switcher for an air purification and circulation device installed ono ne side of the total heat exchanger to selectively perform an inner and outer air circulation and total heat mode allowing the inner air and the outer air to circulate and an air purification mode allowing only the inner air to circulate, and the total heat exchanger having the same.

Description

[Euro-conversion system for variable internal and external air circulation purifier, and heat exchanger with it]

The present invention relates to a total heat exchanger having an internal/external air circulation cleaning function to reduce energy waste by heat exchange between contaminated indoor air discharged to the outside and fresh outdoor air introduced therein. In detail, an air flow conversion means is provided to selectively select an indoor/outdoor air circulation electric heating mode installed on one side of the total heat exchanger to circulate indoor air and outdoor air, and an air cleaning mode that circulates only indoor air. It relates to a variable type internal and external air flow path switching device for an air clean circulator and a total heat exchanger having the same.

It is well known that the total heat exchanger refers to a heat exchanger of a method in which the heat in the room is not lost when ventilation is performed, and the heat is transferred to the air supply from the outside and returned to the room. In general, such a total heat exchanger has a structure in which asbestos, aluminum, nylon, etc. are laminated in a honeycomb shape.

A general total heat exchanger includes a first exhaust port through which indoor air is introduced, a second exhaust port through which the introduced indoor air is discharged to the outside, a first supply device through which outdoor air is introduced, and a second supply device through which outdoor air is discharged indoors. A cover is formed; A fan member driven by power supplied through a power supply and installed inside or outside the cover to induce flow of indoor air and outdoor air; It is configured to include a total heat exchange element disposed in the cover with one side facing the edge of the cover and connected to each of the first exhaust port, the second exhaust port, the first supply port, and the second supply port and the other side to be separated from each other.

In recent years, a technology for a total heat exchanger made to perform an air cleaning function by having a filter for removing fine dust has been provided, and development for use in real life is underway.

Looking at the technology disclosed as a patent document,

In the total heat exchanger having a photocatalytic sterilization function, registered patent 10-1263164, a photocatalytic sterilization unit that performs a sterilization function by light is installed in the air flowing into the room from the outside or the air flow circulating inside the room. There is provided a technology for a total heat exchanger having a photocatalytic sterilization function to reduce the waste of energy due to ventilation.

In the bypass device of the total heat exchanger, registered patent 10-1703672, a space forming case is installed on the bottom of the total heat exchanger to form a bypass space, and a bypass valve for opening and closing the bypass space is installed. By being able to circulate air indoors and outdoors through simple circulating outside airways, it is possible to efficiently save cooling and heating energy, and at the same time, PCB mounted on one side of the total heat exchanger improves usability and convenience, and is installed in communication with the interior. There is provided a technology for a total heat exchanger bypass device that provides a structure capable of easily coupling each of the discharge units and the suction units.

(KR) Registered Patent 10-1263164 (KR) Registered Patent 10-1703672 (KR) Registered Patent 10-1576217

The present invention is attached to one side of the total heat exchanger or installed at a distance so as not to be restricted by the installation location, and the indoor/outdoor air circulation electric heat mode in which the total heat exchanger circulates indoor air and outdoor air, and only indoor air is circulated. An object of the present invention is to provide a variable internal/external air flow path conversion device for an air cleaning circulator provided with an air flow path conversion means capable of selectively selecting an air cleaning mode.

The present invention to achieve this object is installed on one side of the total heat exchanger, and the total heat exchanger selectively selects an indoor/outdoor air circulation electric heat mode in which indoor air and outdoor air circulate, and an air cleaning mode in which only indoor air is circulated. It consists of a variable internal/external air flow path conversion device for an air clean circulator, characterized in that the air flow path conversion means made to be able to do so is provided.

Variable internal and external air flow path switching device for an air cleaning circulator according to the present invention is installed and used on one side of the total heat exchanger; Indoor air is provided with a second exhaust port through which the indoor air of the total heat exchanger is discharged to the outside, and a plurality of exchanger-side connectors respectively connected to the first supply port through which outdoor air is introduced, and allows indoor air to be discharged to the outside through the other side. A body for converting a flow path having a plurality of external connection ports respectively connected to the discharge line and the outdoor air supply line for guiding the outdoor air; The inside of the body for changing the flow path includes an air flow conversion means for selectively selecting an indoor/outdoor air circulation electric heating mode for circulating indoor air and outdoor air in a total heat exchanger, and an air cleaning mode for circulating only indoor air. On the other hand, the air flow path switching means is installed to rotate about a slide shaft for opening and closing, which is provided to move back and forth in an inner middle portion of the body for changing the flow path, and one end of the slide shaft for opening and closing inside the body for changing the flow path. A pair of opening/closing doors for switching are made to open and close the outer connector, and to form a circulation passage for circulating internal air when the outer connector is closed, and to divide the exhaust passage and the supply passage to be separated when the outer connector is opened. It is characterized by including.

The airtight guide surface, which is one surface in the direction of the outer connector among the inner surfaces of the body for changing the flow path, contacts the end of the opening/closing door for switching to maintain airtightness, while contacting a part of the surface of the opening/closing door for switching, and a slide for opening/closing When the shaft is moved, the switching door is formed to smoothly rotate around the slide shaft for opening and closing.

The passage door end of the insertion groove to both side inner body for conversion, the end of the opening and closing door for the switch is inserted to and supported confidentiality is formed, the end portion of the opening and closing door for at least switching on one side of the upper and lower surfaces of the inner door end inserted A door guide means for guiding the groove is formed, and a slide shaft airtight holding means is formed in an inner middle portion of the exchanger-side connector side to contact one side of the slide shaft for opening and closing to maintain airtightness.

A slide shaft guide means for guiding an opening/closing slide shaft is formed on at least one of an upper surface and a lower surface of the inner side of the flow path switching body, and the slide shaft airtight holding means is made of an airtight groove into which one side of the slide shaft is inserted, and the A sealing protrusion is formed on one surface of the switching opening and closing door, which is inserted into the air flow path of the external connector.

It features a total heat exchanger in which a variable internal/external air flow path switching device for an air clean circulator made as described above is installed.

The present inventors variable internal/external air flow path conversion device for an air clean circulator made in this way is additionally installed on one side of a total heat exchanger in use in the past, so that the total heat exchanger circulates indoor air and outdoor air in an indoor/outdoor air circulation heat transfer mode. Wow, it has the effect (advantage) of selectively enabling the air cleaning mode to circulate only indoor air.

The variable internal/external air flow path switching device for the air clean circulator has an effect (advantage) that can be installed on one side of the total heat exchanger or installed spaced apart from each other, thereby solving restrictions on the installation location.

The variable internal/external air flow path switching device for the air cleaning circulator is well-tight and does not cause mixing of indoor air and outdoor air, and circulation to circulate internal air in the air cleaning mode (when the external connection port is closed). It has the advantage that there is no restriction on the size of the flow path.

1 is a perspective schematic diagram of a variable internal/external air flow path switching device for an air clean circulator showing an embodiment of the present invention.
Figure 2 is a schematic diagram showing a state in which the variable internal and external air flow path switching device for an air clean circulator according to an embodiment of the present invention is installed in the total heat exchanger.
Figure 3 is a schematic diagram of the operating state of the air circulation heat transfer mode and the air cleaning mode by the air flow path conversion means of the variable internal and external air flow path switching device for an air cleaning circulator according to an embodiment of the present invention, (a) shows the air cleaning mode. , (b) shows the air circulation heat transfer mode.
4 and 5 are cross-sectional schematic views showing the interior of a variable internal/external air flow path switching device for an air clean circulator according to an embodiment of the present invention.
6 to 8 are detailed schematic diagrams of a main part of a variable internal/external air flow path switching device for an air cleaning circulator according to an embodiment of the present invention, and FIG. 6 shows a door end insertion groove and a door guide means, and FIG. 7 is a slide The shaft airtight holding means is shown, and FIG. 8 shows the airtight protrusion inserted into the air flow path of the external connector provided in the switching door.
9 is a schematic diagram showing a state in which a variable internal/external air flow path switching device for an air clean circulator according to the present invention is installed in a total heat exchanger equipped with a bypass flow path.

The terms or words used in the specification and claims are not to be construed as being limited to their usual or dictionary meanings, and the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention. However, since it does not represent all of the technical spirit of the present invention, it should be understood that there may be various equivalents and modified examples that can replace them at the time of the present application.

The present invention is installed on one side of a total heat exchanger equipped with a total heat exchange element to selectively select an indoor/outdoor air circulation electric heat mode in which the total heat exchanger circulates indoor air and outdoor air, and an air cleaning mode in which only indoor air is circulated. It is a variable-type internal/external air flow path conversion device for air cleaning circulators that enable it to be performed.

That is, the present invention is installed and used on one side of the total heat exchanger, and a second exhaust port through which indoor air of the total heat exchanger is discharged to the outside and a plurality of exchanger-side connectors respectively connected to the first supply port through which outdoor air is introduced are provided. A flow path conversion body provided with a plurality of external connection ports respectively connected to an indoor air discharge line for discharging indoor air to the outside and an outdoor air supply line for guiding outdoor air to the other side; The inside of the body for changing the flow path includes an air flow conversion means for selectively selecting an indoor/outdoor air circulation electric heating mode in which the total heat exchanger circulates indoor air and outdoor air, and an air cleaning mode in which only indoor air is circulated. On the other hand, the air flow path switching means is installed to rotate about a slide shaft for opening and closing, which is provided to move back and forth in an inner middle portion of the body for changing the flow path, and one end of the slide shaft for opening and closing inside the body for changing the flow path. While opening and closing the outer connector, when the outer connector is closed, a circulation passage for circulating internal air is formed, and when the outer connector is opened, a pair of opening/closing doors for switching are made to divide the exhaust passage and the supply passage to be separated. It is a variable internal/external air flow path conversion device for an air cleaning circulator including a configuration.

Hereinafter, with reference to the drawings showing an embodiment of the present invention will be described.

1 and 2,

Variable internal/external air flow path switching device 1 for an air clean circulator according to the present invention is directly attached to one side of a total heat exchanger 2 having a total heat exchange element 3 provided inside, as shown in FIG. 2(a), or As shown in Fig. 2 (b), the air guide connector 4 is connected so that the total heat exchange element 3 can be installed and used at a predetermined distance from the total heat exchanger 2 provided therein.

3,

The present inventors variable internal/external air flow path switching device (1) for an air cleaning circulator is installed on one side of the total heat exchanger (2) to allow the total heat exchanger (2) to circulate indoor air and outdoor air, and an indoor/outdoor air circulation heat transfer mode. , An air flow path switching means 20 is provided inside to form an air flow path (a1, a2, b) so that an air cleaning mode of circulating only indoor air can be achieved.

4 and 5,

The present inventors variable internal/external air flow path switching device 1 for an air cleaning circulator includes a flow path conversion body 10 having an internal space capable of forming a sufficient air flow path, and an internal space of the flow path conversion body 10 It is formed in the configuration of the air flow path conversion means 20 to form an exchange air flow path (a1, a2) and a circulation air flow path (b) to enable the indoor and outdoor air circulation heat transfer mode and the air cleaning mode to be achieved. Includes.

A plurality of exchanger-side connectors 11 capable of being respectively connected to a second exhaust port through which indoor air of the total heat exchanger 2 is discharged to the outside and a first supply port through which outdoor air is introduced to one side of the flow path conversion body 10 ) Is provided, and a plurality of external connection ports 12 that can be respectively connected to an indoor air discharge line for discharging indoor air to the outside and an outdoor air supply line for guiding outdoor air to the other side are provided, and one side of the outer side There are a plurality of fixing brackets (1a) for fixing is formed.

Door end insertion grooves 13 into which the ends of the switching opening/closing door 22 can be inserted are formed on both inner sides of the body for changing the flow path 10, and one side of the inner side in the direction of the outer connector 12 is An airtight guide surface 14 is formed, and an airtight groove 15, which is a slide shaft airtight holding means, formed so that one side of the opening and closing slide shaft 21 can be inserted on the side opposite to the airtight guide surface 14 Is formed.

The door guide groove 16, which is a door guide means for guiding the end of the switching door 22 to the door end insertion groove 13, on at least one of the upper and lower surfaces of the inner upper and lower surfaces of the flow path switching body 10, and for opening and closing A slide shaft guide groove (17), which is a slide shaft guide means to guide the slide shaft (21), is formed, and at the end of the switching door (22), it is inserted into the door guide groove (16), which is a door guide means. Description A door protrusion is formed, and the opening and closing slide shaft 21 has a guide shaft protrusion inserted into the slide shaft guide groove 17 which is a slide shaft guide means.

The airtight guide surface 14 is as shown in Figs. 4 and 5 so that the switching door 22 can move smoothly in the direction of the door end insertion groove 13 when switching from the air circulation heat transfer mode to the air cleaning mode. It is preferable to be formed to be inclined at a predetermined angle.

The door guide groove 16, which is the door guide means, is also preferably formed to be parallel to the airtight guide surface 14.

The door end insertion groove 13 and the airtight groove 15 may be provided with a packing made of a material having elasticity such as a rubber material to improve airtightness.

The air flow path switching means 20 includes a slide shaft 21 configured to move back and forth in the drawing along a slide shaft guide groove 17, which is a slide shaft guide means, and one end rotates around the slide shaft 21. It is installed and the other end includes a switchable opening and closing door 22 configured to move along the door guide groove 16, which is a door guide means.

The slide shaft 21 moves back and forth by a shaft driving means (not shown) operated under the control of a controller (not shown). The shaft driving means (not shown) may be formed in various forms, such as a pneumatic cylinder device and a servo motor.

The end of the switching opening/closing door 22 (the end inserted into the door end insertion groove 13) may be made of a material having elasticity such as a rubber material to improve airtightness.

An airtight protrusion 22a that can be inserted into the air passage c of the external connector 12 may be formed on one surface of the switching opening/closing door 22.

The airtight protrusion 22a is inserted into the air passage c of the outer connector 12 to maintain airtightness, and is preferably made of a material having elasticity such as a rubber material.

The variable internal/external air flow path switching device 1 for the air clean circulator of the present invention made as described above is installed on one side of the total heat exchanger 2, but according to the environmental factors of the installation place, the total heat exchanger ( It is installed to contact one side of 2) or is installed to be spaced apart from the total heat exchanger 2 by a predetermined distance as shown in FIG. 2(b), and as shown in FIG. 3(a) by the air flow conversion means 20 The indoor/outdoor air circulation heat transfer mode and the air cleaning mode as shown in FIG. 3(b) can be achieved.

In other words,

As shown in Figure 3 (a), the opening and closing door 22 for conversion of the air flow conversion means 20 is for indoor air exchange through which outdoor air and indoor air can respectively move the internal space of the flow path conversion body 10 An air flow path (a1) and an air flow path (a2) for outdoor air exchange are formed so that the total heat exchanger (2) can achieve the indoor/outdoor air circulation heat transfer mode,

As shown in (b) of Figure 3, the opening/closing door 22 for switching of the air flow switching means 20 blocks the air flow path c of the external connector 12, and the internal space of the body 10 for switching the flow path By forming an air flow path (b) for circulation so that the indoor air can circulate, the total heat exchanger (2) can be in the air cleaning mode.

The total heat exchanger (2) is provided with a total heat exchange element (3) for performing heat exchange (electric heat) between outdoor air and indoor air, and a first exhaust port, a second exhaust port, and a second exhaust port are provided by the total heat exchange element (3). It is divided into a first supply device and a second supply device, and a fine dust filter 5 is provided so that the air cleaning mode can be achieved, and the technology of the total heat exchanger 2 is a known technology.

A plurality of fixing brackets 2a are formed on one side of the outer side of the total heat exchanger 2 to allow the variable internal/external air flow path switching device 1 for an air cleaning circulator to be installed or to be fixed to a wall or the like.

In the total heat exchanger 2, bypass flow paths 2b and 2c may be formed so as not to pass through the total heat exchange element 3 in the air cleaning mode. The pair of bypass flow paths 2b and 2c cross each other, but do not communicate with each other.

1: Variable internal/external flow path switching device for air cleaning circulator
2: total heat exchanger
10: body for passage conversion 11: connection port on the exchanger side
12: external connector 13: door end insertion groove
14: airtight guide surface 15: airtight groove
16: door guide groove 17: slide shaft guide groove
20: air flow conversion means 21: slide shaft for opening and closing
22: switching door 22a: airtight protrusion
a1, a2, b, c: air flow path

Claims (6)

An air flow conversion means installed on one side of the total heat exchanger to selectively select an indoor/outdoor air circulation electric heat mode in which the total heat exchanger allows indoor air and outdoor air to circulate, and an air cleaning mode in which only indoor air is circulated. Variable internal/external air flow path switching device for an air cleaning circulator, characterized in that it is provided.
It is installed and used on one side of the total heat exchanger.
Indoor air is provided with a second exhaust port through which the indoor air of the total heat exchanger is discharged to the outside, and a plurality of exchanger-side connectors respectively connected to the first supply port through which outdoor air is introduced, and allows indoor air to be discharged to the outside through the other side. A body for converting a flow path having a plurality of external connection ports respectively connected to the discharge line and the outdoor air supply line for guiding the outdoor air;
The inside of the body for changing the flow path includes an air flow conversion means for selectively selecting an indoor/outdoor air circulation electric heating mode for circulating indoor air and outdoor air in a total heat exchanger, and an air cleaning mode for circulating only indoor air. Meanwhile,
The air flow conversion means includes a slide shaft for opening/closing provided to move back and forth in an inner middle portion of the body for changing the flow path, and a plurality of external connectors having one end rotated around the slide shaft for opening and closing inside the body for changing the flow path. While opening and closing the outer connection port, a circulation passage for circulating internal air is formed, and when the outer connection port is opened, a pair of switching opening and closing doors are formed to divide the exhaust passage and the supply passage to be separated. Variable internal/external flow path switching device for an air cleaning circulator, characterized in that.
The method of claim 2,
The airtight guide surface, which is one surface in the direction of the outer connector among the inner surfaces of the body for switching the flow path, contacts the end of the opening and closing door for switching to maintain airtightness, and contacts a part of the surface of the opening and closing door for switching. A variable internal/external air flow path switching device for an air clean circulator, characterized in that the opening/closing door for switching when the shaft is moved is formed to smoothly rotate around the slide shaft for opening/closing.
The method of claim 2,
The passage door end of the insertion groove to both side inner body for conversion, the end of the opening and closing door for the switch is inserted to and supported confidentiality is formed, the end portion of the opening and closing door for at least switching on one side of the upper and lower surfaces of the inner door end inserted Door guide means for guiding the groove is formed,
A variable internal/external air flow path switching device for an air clean circulator, characterized in that a slide shaft airtight holding means is formed in an inner middle portion of the exchanger-side connector to maintain airtightness by contacting one side of the slide shaft for opening and closing.
The method of claim 4,
A slide shaft guide means for guiding an opening/closing slide shaft is formed on at least one of the upper and lower surfaces of the inner side of the body for changing the flow path, and the slide shaft airtight holding means is made of an airtight groove into which one side of the slide shaft is inserted,
A variable internal/external air flow path conversion device for an air clean circulator, characterized in that an airtight protrusion inserted into the air flow path of an external connector is formed on one surface of the conversion opening/closing door.
A total heat exchanger comprising a variable internal/external air flow path switching device for an air clean circulator according to any one of claims 1 to 5.

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