KR100898926B1 - Heat exchange of ventilating system - Google Patents

Abstract

The present invention is to provide a heat exchanger for a ventilation device that can improve the heat transfer performance by placing a mesh-type heat transfer member in the air passage through which outdoor air and indoor air pass to increase the turbulent in the air passing through. For the purpose, a plurality of heat transfer plates are stacked at regular intervals; A first heat transfer member laminated between the heat transfer plates and attached to a first air passage through which outdoor air passes, the first heat transfer member being formed in a mesh type to increase a turbulent in the outdoor air flowing therein; The second heat transfer member is stacked between the heat transfer plates to intersect the first heat transfer member and is attached to a second air passage through which indoor air passes to form a second heat transfer member formed of a mesh type to increase turbulent in the indoor air. do.

Description

Heat exchanger for ventilation system {HEAT EXCHANGE OF VENTILATING SYSTEM}

The present invention relates to a ventilation device for exchanging indoor air and outdoor air, and more particularly, to a heat exchanger of a ventilation device capable of improving heat exchange performance of indoor air and outdoor air.

In general, the ventilator is a device that discharges contaminated indoor air to the outside and sucks fresh air from the outside into the air. An air purifier removes dust and foreign substances contained in the outdoor air and sucks heat from the discharged indoor air. It is provided with a heat exchanger for transferring to the outdoor air.

1 is a perspective view of a general ventilation device.

The ventilation device includes a case (2) mounted on a wall partitioning the outdoor and the indoor, a blower fan (4, 6) for blowing air to be sucked and discharged in the case (2), and the case (2). An air purifier (not shown) installed at a portion where the outdoor air is sucked inside to purify the outdoor air sucked into the room, and the indoor air that is disposed inside the case 2 and discharged to the outside And a heat exchanger 8 or the like that performs a heat exchange action between the air.

Here, the case 2 is penetrated through a wall partitioning the indoor and the outdoor, one side of which is located indoors and the other side of which is located outdoors. At this time, the outdoor suction port 10 through which the outdoor air is sucked and the outdoor discharge port 12 through which the indoor air is discharged to the outside are formed on the side surfaces of the case 2 which is located outdoors. The side surface is formed with an indoor discharge port 14 through which indoor air is discharged and an indoor suction port 16 through which outdoor air is sucked into the room.

The blowing fans 4 and 6 are installed at a portion connected to the outdoor discharge port 12 to provide a blowing pressure 4 for blowing air to discharge indoor air to the outside, and the indoor discharge port ( 14) is installed in a portion connected to the suction blower fan (6) for providing a blowing pressure for sucking the outdoor air into the room.

2 is a perspective view of a heat exchanger for a ventilator according to the prior art, and FIG. 3 is a partial perspective view of a heat exchanger for a ventilator according to the prior art.

The heat exchanger 8 according to the related art is stacked in a plurality of base plates 20 and spaced between the base plates 20, which are stacked at regular intervals in the form of a thin plate. First corrugation plates 22 through which indoor air passes, and a second layer laminated on the base plate 22 alternately orthogonal to the first corrugation plates 22 and through which outdoor air passes. Second corrugation plates 24.

Here, the first and second corrugated plates 22 and 24 are bent in a triangular shape and mutual heat exchange is performed while indoor air and outdoor air pass through the inner and outer surfaces thereof, respectively.

The heat exchanger 8 as described above is formed in a rectangular parallelepiped form by sequentially stacking the first wrinkle plates 22, the base plates 20, the second wrinkle plates 24, the heat exchanger ( The upper and lower surfaces of 8) are respectively sealed by the base plate 20, and both sides of the heat exchanger are connected to the outdoor suction hole 10 and the indoor discharge port 14, respectively, through which outdoor air passes. The other two side surfaces of the heat exchanger are connected to the outdoor discharge port 12 and the indoor suction port 16, respectively, to allow the indoor air to pass through.

That is, the outdoor air passing through the first wrinkled plates 22 and the indoor air passing through the second wrinkled plates 24 cross each other while passing the heat of the indoor air through the base plates 20. Heat exchange to this outdoor air takes place.

The operation of the heat exchanger for a ventilation device according to the prior art configured as described above will be described below.

When the suction blower fan 6 is driven, outdoor air is sucked into the outdoor suction port 10, and is supplied to the room through the first discharge plate 14 through the indoor discharge port 14. When the blower fan 4 for discharge is driven, the indoor air is sucked into the indoor suction port 16 and passed through the second wrinkle plate 24 to be discharged to the outside through the outdoor discharge port 12.

Here, outdoor air passing through the first wrinkled plate 22 and indoor air passing through the second wrinkled plate 24 cross each other, and heat of the indoor air is passed through the base plate 20. The outdoor air is delivered to the indoor air that absorbs the heat of the indoor air.

In this way, since the outdoor air absorbed by the heat contained in the discharged indoor air is absorbed and discharged into the room, the temperature of the room is prevented from being rapidly changed during the ventilation operation.

However, the heat exchanger for a ventilation apparatus of the prior art as described above is formed in the form of one plate having the first wrinkle plate 22 and the second wrinkle plate 24 having a certain form of wrinkles, so that the first and second wrinkles As the air flowing through the plate goes from the inlet side to the outlet side, the boundary layer (S) is gradually developed, which lowers the heat transfer efficiency. As a result, the outdoor air sucked into the room does not absorb the heat of the indoor air. Is changed, the energy consumption for recovering the indoor air is increased and there is a problem of lowering the indoor air conditioning performance.

That is, as shown in Figure 4, when the viscous air flowing in the tube of the first wrinkle plate 22 and the second wrinkle plate 24 flows through the tube surface, the air particles in contact with the tube surface Due to the viscosity of the film, it sticks to the surface of the tube, and as it falls off the surface of the tube, the air gradually recovers its velocity, and at some distance from the solid surface, it has a rate of free flow. At this time, the boundary layer (S) is formed while falling from the flowing air and the inner surface of the tube.

As such, as the air flowing through the inner surface of the tube progresses, the boundary layer develops and falls off from the inner surface of the tube, so that the heat transfer performance of heat of indoor air is transferred to the outdoor air through the base plate 20.

Therefore, the present invention has been made to solve the above problems of the prior art, an object of the present invention is to place a mesh-type heat transfer member in the air passage through which the outdoor air and indoor air passes through the air passing through It is to provide a heat exchanger for a ventilation device that can improve the heat transfer performance by increasing the turbulent.

The heat exchanger of the ventilator of the present invention for realizing the above object and a plurality of heat transfer plates are laminated at regular intervals; A first heat transfer member laminated between the heat transfer plates and attached to a first air passage through which outdoor air passes, the first heat transfer member being formed in a mesh type to increase a turbulent in the outdoor air flowing therein; And a second heat transfer member formed of a mesh type to increase the turbulent in the indoor air flowing between the heat transfer plates intersecting the first heat transfer member and attached to a second air passage through which indoor air passes. Characterized in that the configuration.

The heat exchanger plate of the heat exchanger is characterized in that formed of an aluminum plate or paper.

The first and second heat transfer members of the heat exchanger are arranged in a corrugated form to secure a first air passage and a second air passage between the heat transfer plates, and the outdoor air flows into the first and second air passages. And a mesh-type aluminum material so that indoor air can pass from the upper surface of the heat transfer member to the lower surface, or from the lower surface to the upper surface.

The first and second heat transfer members of the heat exchanger are inclined by a predetermined angle with a direction in which air flows.

The first and second heat transfer members of the heat exchanger are inclined by 30 ° to 60 ° in a direction in which air flows.

In addition, the heat exchanger for a ventilator of the present invention comprises a plurality of heat transfer plates stacked at regular intervals; A first heat transfer member laminated between the heat transfer plates and formed with a plurality of through holes to increase the airflow to the outdoor air flowing through the outdoor air; A second heat transfer member laminated between the heat transfer plates to intersect the first heat transfer member, and having a plurality of through holes formed therein so as to increase the airflow in the indoor air flowing through the second air passage through which the indoor air passes; And a first partition wall is attached to both sides of the heat exchanger through which the outdoor air passes, respectively, and prevents the indoor air from flowing into the first air passage, and each of the other sides of the heat exchanger through which the indoor air passes. A second partition wall is attached to prevent outdoor air from flowing into the second air passage.

The first and second heat transfer members of the heat exchanger may be formed of a metal material or a paper material.

The first and second heat transfer members of the heat exchanger is characterized in that formed of a porous resin film.

1 is a partially cut perspective view showing the configuration of a general ventilation device.

2 is a partial perspective view of a heat exchanger for a ventilation device according to the prior art.

3 is a perspective view of a corrugated plate of a heat exchanger for a ventilation device according to the prior art.

4 is a cross-sectional view showing a pipe flow of air to which a heat exchanger for a ventilation device according to the prior art is applied.

5 is a partial perspective view of a heat exchanger for a ventilation device according to an embodiment of the present invention.

6 is a partial perspective view showing a heat transfer member of a heat exchanger for a ventilation device according to an embodiment of the present invention.

7 is a partial perspective view showing a heat transfer member of a heat exchanger for a ventilation device according to a second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

2: case 4: blowing fan for discharge

6: blowing fan for suction 8: heat exchanger

10: outdoor suction port 12: outdoor discharge port

14: indoor suction port 16: indoor discharge port

50: heat transfer plate 52: first air passage

54: first heat transfer member 56: second air passage

58: second heat transfer member 66: the first partition

68: second bulkhead

Best Mode for Carrying Out the Invention

Hereinafter, an embodiment of a heat exchanger for a ventilation device according to the present invention will be described with reference to the accompanying drawings.

There may be a plurality of embodiments of the heat exchanger for a ventilation device according to the present invention, the following describes the most preferred embodiment.

5 is a perspective view of a heat exchanger of the ventilation device according to the present invention.

Referring to Figure 1, the ventilation device according to the present invention, the case 2 is mounted to penetrate the wall partitioning the outdoor and indoor, one side of the case 2 is located outdoors and the other side is indoor Is located in. Here, an outdoor intake port 10 through which outdoor air is sucked and an outdoor discharge port 12 through which indoor air is discharged are formed at a side surface of the case 2 that is located outdoors, and located in the interior of the case 2. On the side surface of the indoor air inlet 14, which is sucked indoor air and the indoor air outlet 16 is discharged to the indoor air is formed respectively.

In addition, at a portion connected to the outdoor discharge port 12 inside the case 2, a discharge pontoon fan 4 is provided to impart a blowing pressure for discharging indoor air to the outside, and the interior of the case 2 is installed inside the case 2. At a portion connected to the discharge port 14, a suction blowing fan 6 for providing a blowing pressure for sucking outdoor air into the room is provided.

In addition, an air purifier (not shown) is installed on the suction flow path inside the case 2 to remove various impurities and dusts contained in the outdoor air sucked into the room, and is discharged to the inside of the case 2. The heat exchanger 8 is installed to transfer the heat of the indoor air to the outdoor air sucked into the room.

As illustrated in FIG. 5, the heat exchanger 8 includes heat exchange plates 50 stacked at regular intervals in the form of a thin plate, and stacked between the heat transfer plates 50 and passed through outdoor air. The first heat transfer member 54 and the first heat transfer member 54 having a mesh structure to suppress the development of a boundary layer when the outdoor air flows are attached to the first air passage 52 so as to intersect the first heat transfer member 54. It is composed of a second heat transfer member 58 having a mesh structure that is laminated between the heat transfer plates 50 and attached to a second air passage 56 through which indoor air passes, to suppress the development of a boundary layer when the indoor air flows. .

A first partition 66 is attached to both sides of the heat exchanger 8 through which the outdoor air passes to prevent the indoor air from flowing into the first air passage 52, respectively. The second partition wall 68 is attached to both sides of the heat exchanger 8 to prevent outdoor air from flowing into the second air passage 56, respectively.

The heat transfer plate 50 is preferably formed of a material having excellent heat transfer efficiency. As an embodiment, the heat transfer plate 50 may be formed of a thin aluminum plate or paper.

The first heat transfer member 54 and the second heat transfer member 58 are formed in the same shape, but are installed alternately in a direction perpendicular to each other according to the direction in which air is introduced and alternately stacked.

As shown in FIG. 6, the first and second heat transfer members 54 and 58 may secure the first air passage 52 and the second air passage 56 between the heat transfer plates 50. It is arranged in a corrugated form so that the outdoor and indoor air introduced into the first and second air passages 52 and 56 can pass from the upper surface of the heat transfer member 54, 58 to the lower surface, or from the lower surface to the upper surface. It is preferably formed of a mesh type aluminum material.

The heat transfer members 54 and 58 are formed to be inclined by a predetermined angle with a direction in which air flows. That is, the air is disposed to be inclined by an angle θ in the direction of the arrow P, where air flows from the top surface of the heat transfer members 54 and 58 to the bottom surface or from the bottom surface of the heat transfer members 54 and 58 to the top surface. Increasing turbulent can increase the heat transfer efficiency.

Here, the direction in which the air flows and the angle θ at which the heat transfer member is disposed are preferably about 30 ° to 60 °.

The operation of the heat exchanger according to the present invention configured as described above will be described below.

When the suction blower fan 6 is driven, outdoor air is sucked into the outdoor suction port 10 to remove various dusts and foreign substances while passing through the air purifier, and passes through the first air passage 52 to open the indoor discharge port 14. Through the room. When the blower fan 4 for discharge is driven, the indoor air is sucked into the indoor suction port 16 and passed through the second air passage 56 to be discharged to the outside through the outdoor discharge port 12.

Here, while the indoor air passing through the first air passage 52 and the outdoor air passing through the second air passage 56 cross each other, heat contained in the indoor air passes through the heat transfer plate 50 to the outdoor air. The outdoor air absorbed and the heat exchange completed is supplied to the room.

Looking at the operation of the heat exchanger 8 in more detail, the outdoor and indoor air introduced into the first and second air passage (52, 56) in the upper surface of the heat transfer member (54, 58) having the network structure Passing from the lower surface or from the lower surface to the upper surface increases the turbulent of the air to suppress the development of the boundary layer, thereby improving heat transfer performance.

7 is a partial perspective view showing the structure of a heat exchanger according to a second embodiment of the present invention.

The heat exchanger according to the second embodiment is formed in the same structure as the heat exchanger 8 described in the above embodiment, except that the heat transfer member 70 is formed in a plate type having a plurality of through holes 72.

That is, the heat transfer member 70 according to the second embodiment is formed in the form of a corrugated plate at a predetermined angle to form a plurality of through holes 72 through which air can pass.

Here, the heat transfer member 70 is manufactured by drilling a plurality of through holes in a metal or paper material such as aluminum. The heat transfer member may be formed of a porous resin film. Such an angle α of the heat transfer member is disposed to be inclined by about 30 ° to 60 ° in the air flow direction P as in the embodiment.

The heat exchanger of the ventilation apparatus according to the present invention configured and operated as described above has a mesh structure in which a plurality of holes are formed, and is disposed to be inclined at a predetermined angle with a direction in which air flows, thereby providing the first and second air passages. By passing the air passing from the upper surface to the lower surface of the heat transfer member, and from the lower surface to the upper surface, there is an advantage that heat transfer performance can be improved by generating turbulent in the flowing air and suppressing the development of the boundary layer.

In addition, as the heat transfer performance is improved by the configuration as described above, since there is little change in indoor air, energy consumption can be reduced and the room temperature can be kept constant, thereby providing a more comfortable indoor environment.

Claims (10)

A plurality of heat transfer plates stacked at regular intervals; A first heat transfer member laminated between the heat transfer plates and attached to a first air passage through which outdoor air passes, the first heat transfer member being formed in a mesh type to increase a turbulent in the outdoor air flowing therein; And a second heat transfer member formed of a mesh type to increase the turbulent in the indoor air flowing between the heat transfer plates intersecting the first heat transfer member and attached to a second air passage through which indoor air passes. , And the first and second heat transfer members are inclined by 30 ° to 60 ° in a direction in which air flows. The method of claim 1, The heat exchanger plate is a heat exchanger for a ventilation device, characterized in that formed of aluminum or paper. The method of claim 1, The first and second heat transfer members are disposed in a corrugated form to secure the first air passage and the second air passage between the heat transfer plates, and the outdoor and indoor air introduced into the first and second air passages. Heat exchanger for a ventilation device, characterized in that formed of a mesh-type aluminum material so as to pass from the upper surface to the lower surface, or from the lower surface to the upper surface. delete delete A plurality of heat transfer plates stacked at regular intervals; A first heat transfer member laminated between the heat transfer plates and formed with a plurality of through holes to increase the airflow to the outdoor air flowing through the outdoor air; A second heat transfer member laminated between the heat transfer plates to intersect the first heat transfer member, and having a plurality of through holes formed therein so as to increase the airflow in the indoor air flowing through the second air passage through which the indoor air passes; Include, Both sides of the heat exchanger, through which the outdoor air passes, are respectively attached to a first partition wall for preventing indoor air from flowing into the first air passage, and a second air cylinder, respectively, on the other sides of the heat exchanger through which the indoor air passes. And a second partition wall is attached to prevent outdoor air from flowing into the furnace. The method of claim 6, The first and second heat transfer member is a heat exchanger for a ventilation device, characterized in that formed of metal or paper. The method of claim 6, The first and second heat transfer member is a heat exchanger for a ventilation device, characterized in that formed of a porous resin film. The method of claim 6, The first and second heat transfer member is a heat exchanger for a ventilation device, characterized in that disposed inclined by a predetermined angle with the direction in which air flows. The method of claim 6, And the first and second heat transfer members are inclined by 30 ° to 60 ° in a direction in which air flows.

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