WO2004051170A2 - Heat exchanger of ventilating system - Google Patents

Heat exchanger of ventilating system Download PDF

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Publication number
WO2004051170A2
WO2004051170A2 PCT/KR2002/002263 KR0202263W WO2004051170A2 WO 2004051170 A2 WO2004051170 A2 WO 2004051170A2 KR 0202263 W KR0202263 W KR 0202263W WO 2004051170 A2 WO2004051170 A2 WO 2004051170A2
Authority
WO
WIPO (PCT)
Prior art keywords
outdoor air
air path
indoor
indoor air
outdoor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2002/002263
Other languages
French (fr)
Other versions
WO2004051170A3 (en
Inventor
Soo-Yeon Shin
Seong-Hwan Lee
Min-Chul Cho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to CNB028301765A priority Critical patent/CN100449250C/en
Priority to PCT/KR2002/002263 priority patent/WO2004051170A2/en
Priority to US10/536,956 priority patent/US7267165B2/en
Priority to AU2002368421A priority patent/AU2002368421B2/en
Priority to EP02791010A priority patent/EP1573262B1/en
Priority to DE60225735T priority patent/DE60225735T2/en
Priority to AT02791010T priority patent/ATE389859T1/en
Priority to ES02791010T priority patent/ES2302519T3/en
Publication of WO2004051170A2 publication Critical patent/WO2004051170A2/en
Publication of WO2004051170A3 publication Critical patent/WO2004051170A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the present invention relates to a ventilating system for exchanging indoor air and outdoor air and particularly, to a heat exchanger of a ventilating system, capable of improving heat exchanging capability between outdoor air which is flowed from the outdoor to the indoor and indoor air which is discharged from the indoor to the outdoor.
  • a ventilating system is a system for discharging polluted indoor air to the outdoor and sucking fresh outdoor air to the indoor, and the system includes an air cleaner for removing dust and foreign materials contained in the outdoor air, and a heat exchanger for transferring heat of the discharged indoor air to the sucked outdoor air.
  • Figure 1 is a perspective view showing a conventional ventilating system.
  • the ventilating system includes a case 2 which is mounted on a wall for dividing indoor and outdoor, ventilating fans 4 and 6 which are mounted in the case 2, for ventilating air which is sucked and discharged, an air cleaner (not shown) which is installed in a portion to which the outdoor air inside the case 2 is sucked, for cleaning the outdoor air sucked to the indoor, and a heat exchanger 8 which is positioned inside the case 2, for performing a heat exchanging operation of indoor air discharged the outdoor and outdoor air sucked to the indoor.
  • the case 2 is disposed in a hole formed on the wall for diving the indoor and outdoor, and accordingly, one side is positioned indoors and the other side is positioned outdoors. At this time, an outdoor suction hole 10 to
  • the ventilating fans 4 and 6 includes a discharging ventilating fan 4 which is installed in a position connected with the outdoor discharging hole 12,
  • a suction ventilating fan 6 which is installed in a position connected with the indoor discharging hole 14, for providing a ventilating pressure for sucking
  • Figure 2 is a perspective view showing a conventional heat exchanger of a ventilating system
  • Figure 3 is a partial perspective view showing the
  • the conventional heat exchanger 8 includes a plurality of base plates 20
  • first corrugation plates 22 which are respectively laminated in the spaces among
  • first and second corrugation plates 22 and 24 are curved in a triangular shape, and indoor and outdoor air passes to the inner and outer
  • Such heat exchanger 8 is formed in a rectangular shape by sequentially laminating the first corrugation plates 22, base plates 20, and second corrugation plates 24. The upper and lower surfaces of the heat exchanger 8
  • the outdoor air is sucked to the outdoor suction port 10 and is supplied to the indoor through the indoor discharging hole 14 by passing the first corrugation plate 22.
  • the discharging ventilating fan 4 is driven, the indoor air is sucked to the indoor suction hole 16 and discharged to the indoor through the outdoor discharging hole 12 by passing the second corrugation plate 24.
  • the outdoor air passing in the first corrugation plate 22 and indoor air passing the second corrugation plate 24 flow while being crossed with each other, heat in the indoor air is transferred to the outdoor air through the base plate 20, and the outdoor air which sucked the heat of the indoor air is supplied to the indoor.
  • rapid temperature change of the indoor air can be prevented in case of operating ventilation.
  • the first and second corrugation plates 22 and 24 are formed in a shape of a plate having a corrugation of a predetermined shape, and a boundary layer S is developed as the air flowing in the first and second corrugation plates moves along from the inlet side to the outlet side. Therefore, heat transfer efficiency is degraded and indoor temperature is rapidly changed in case of ventilating since the outdoor air sucked to the indoor could not absorb heat in the indoor air. Also, energy consumption for recovering the indoor air is increased and indoor air conditioning performance is degraded.
  • the boundary layer is developed and the air gets apart from the surface of the inside of the pipe, thus to degrade heat transfer efficiency that the heat of the indoor air is transferred to the outdoor air through the base plate 20.
  • an object of the present invention is to provide a heat exchanger of a ventilating system, capable of improving heat transfer performance by controlling development of a boundary layer by differentiating structure of the air flow of an air path through which indoor air passes and an air path through which outdoor air passes.
  • a heat exchanger of a ventilating system including a heat exchange plates which are laminated at a predetermined interval and divide an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, a plurality of embossing protrusions which are attached on the outdoor air path divided by the heat exchange plates, for generating turbulence in the outdoor air which flows in the outdoor air path and a corrugation plate which is positioned in the indoor air path, for securing a space through which the indoor air passes.
  • a partition for preventing inflow of indoor air into the outdoor air path is attached on the both side surfaces of the outdoor air path on which the embossing protrusion of the heat exchanger is attached.
  • the embossing protrusion of the heat exchanger is formed in a convex shape having a predetermined height being attached on the upper surface of the heat exchange plate.
  • embossing protrusions of a first row is aligned at a predetermined interval at the front of the heat exchange plate
  • embossing protrusions of a second row is aligned at a predetermined interval at the rear of the embossing protrusions of the first row
  • the embossing protrusions of the first row and the second row are sequentially aligned
  • the embossing protrusions are respectively positioned in spaces among the embossing protrusions of the first row.
  • the heat exchanger of the ventilating system in accordance with the present invention includes a heat exchange plate for dividing an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, which are laminated at a predetermined interval, a corrugation plate which is attached on the outdoor air path which is divided by the heat exchange plates, for securing a space through which the outdoor air
  • present invention includes a heat exchanging plate which is laminated at a
  • protrusions which are positioned in the indoor air paths, for generating
  • Figure 1 is a partially cut perspective view showing the structure of a
  • Figure 2 is a partial perspective view showing a conventional heat
  • Figure 3 is a perspective view showing a conventional corrugation plate of the heat exchanger of a ventilating system
  • Figure 4 is a cross-sectional view showing a movement of the air in the pipe to which the conventional heat exchanger of a ventilating system is applied;
  • FIG. 5 is a partial perspective view showing a heat exchanger of a ventilating system in accordance with the present invention.
  • Figure 6 is a partially resolving perspective view showing the heat exchanger of the ventilating system in accordance with an embodiment of the present invention.
  • Figure 7 is a partially disassembled perspective view showing the heat exchanger of the ventilating system in accordance with a second embodiment of the present invention.
  • FIG. 5 is a perspective view showing a heat exchanger of a ventilating system in accordance with the present invention.
  • a case 2 is mounted to penetrate a wall which divides the indoor and outdoor, a side surface of the case 2 is positioned indoors and the other side surface is positioned indoors.
  • an outdoor suction hole 10 through which the outdoor air is sucked and an outdoor discharging hole 12 through which the indoor air is discharged are respectively formed on a side surface positioned at the outdoor of the case 2
  • an indoor suction hole 16 through which the indoor air is sucked and an indoor discharging hole 14 through which the outdoor air is discharged to the indoor are respectively formed on a side surface positioned at the indoor of the case 2.
  • a discharging ventilating fan 4 for giving a ventilating pressure for discharging the indoor air to the outdoor is installed in a position connected with the outdoor discharging hole 12 inside the case 2
  • a suction ventilating fan 6 for giving a ventilating pressure for sucking the outdoor air to the indoor is installed in a position connected with the indoor discharging hole 14 inside the case 2.
  • An air cleaner (not shown) for removing foreign materials, dust and the like contained in the outdoor air is installed on the suction channel inside the case 2, and a heat exchanger 8 for transferring heat of the discharged indoor air to the sucked indoor air is installed inside the case 2.
  • the heat exchanger 8 includes heat exchange plates 50 which are laminated in a thin plate shape at a predetermined interval, a plurality of embossing protrusions 54 which are attached on the outdoor air path 52 divided by the heat exchange plates 50, for generating turbulence in the outdoor air which flows in the outdoor air path 52 and a corrugation plate 58 which is positioned in the indoor air path 56 which is at right angles to with the outdoor air path 52 in turn, for securing a space through which the indoor air passes.
  • a partition 60 for preventing inflow of indoor air into the outdoor air path 52 is attached on the both side surfaces of the heat exchanger 8 through which the outdoor air passes. On the other side surfaces of the heat exchanger 8 through which the indoor air passes are closed by the both side surfaces of the corrugation plate 58, and prevents inflow of the outdoor air.
  • the embossing protrusions 54 is formed in a convex shape having a predetermined height on the upper surface of the heat exchange plate 50.
  • the embossing protrusions 62 of a first row are aligned at a predetermined interval at the front of the heat exchange plate 8
  • the embossing protrusions 66 of a second row are aligned at a predetermined interval at the rear of the embossing protrusions 62 of the first row
  • the embossing protrusions 62 and 66 of the first row and the second row are sequentially aligned.
  • the embossing protrusions 66 of a second row are aligned at a predetermined interval at the rear of the embossing protrusions 62 of the first row so that the embossing protrusions of the second row can be diffused while being collided with the indoor air which passes the space among the embossing protrusions of the first row.
  • waves having a predetermined height are repeatedly formed, and the indoor air passes through the space formed by the wave.
  • the ventilating fan 6 When the ventilating fan 6 is driven, the outdoor air is sucked through the outdoor suction hole 10, various dusts and foreign materials are removed passing the air cleaner, and the outdoor air is supplied through the indoor discharging hole 14 by passing the indoor air path 52.
  • the discharging ventilating fan 4 When the discharging ventilating fan 4 is driven, the indoor air is sucked through the indoor suction hole 16 and is discharged to the outdoor through the outdoor discharging hole 12 by passing the outdoor air path 56.
  • the outdoor air passing through the outdoor air path 52 is irregularly diffused while being collided with the embossing protrusion formed on the outdoor air path 52, and development of the boundary layer is prevented.
  • the air collided with the embossing protrusions 54 flows in contact with the surface of the heat exchange plate 50, and accordingly, heat transfer performance with the indoor air which passes the corrugation plate 58 formed on the indoor air path 56 can be improved.
  • FIG. 7 is a partially disassembled perspective view showing the heat exchanger of the ventilating system in accordance with a second embodiment of the present invention.
  • a plurality of heat exchange plates 50 are laminated at a predetermined interval
  • a corrugation plate 58 having corrugations formed at a predetermined interval is attached on the outdoor air path 52 through which the outdoor air passes among the heat exchange plates 50
  • a plurality of embossing protrusions 54 are formed on the indoor air path 56 through which the indoor air passes.
  • the heat exchanger 50 diffuses indoor air by providing a plurality of embossing protrusions 54 on the indoor air path 56 through which indoor air passes contrary to the above description of the first embodiment, and improves heat exchange performance with outdoor air which passes through the outdoor air path in which the corrugation plate 58 is installed.
  • the embossing protrusion 54 is selectively provided to one of the indoor air path 56 or the outdoor air path 52 described above, or can be formed on the whole indoor air path 56 and outdoor air path 52. Also, the corrugation plate 58 and embossing protrusion 54 can be irregularly positioned not dividing the indoor and outdoor air paths 56 and 52.
  • the heat exchanger of the ventilating system can improve heat transfer performance by controlling development of the boundary layer by attaching a plurality of embossing protrusions on at least one air path of the air paths between an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes so that the air can be irregularly diffused. Also, as the heat exchange performance of the heat exchanger, indoor temperature change generated in case of ventilation, and accordingly energy consumption can be reduced. In addition, by maintaining the indoor temperature regularly, more comfortable indoor environment can be made.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Central Air Conditioning (AREA)

Abstract

A heat exchanger of a ventilating system, including heat exchange plates (50) which are laminated at a predetermined interval and divide an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, and a plurality of embossing protrusions (54) which are formed on the outdoor air path divided by the heat exchange plates (50), for generating turbulence in the outdoor air which flows in the outdoor air path, can improve heat transfer performance by controlling development of a boundary layer by differentiating structure of the air flow of an air path through which indoor air passes and an air path through which outdoor air passes.

Description

HEAT EXCHANGER OF VENTILATING SYSTEM
TECHNICAL FIELD
The present invention relates to a ventilating system for exchanging indoor air and outdoor air and particularly, to a heat exchanger of a ventilating system, capable of improving heat exchanging capability between outdoor air which is flowed from the outdoor to the indoor and indoor air which is discharged from the indoor to the outdoor.
BACKGROUND ART
Generally, a ventilating system is a system for discharging polluted indoor air to the outdoor and sucking fresh outdoor air to the indoor, and the system includes an air cleaner for removing dust and foreign materials contained in the outdoor air, and a heat exchanger for transferring heat of the discharged indoor air to the sucked outdoor air.
Figure 1 is a perspective view showing a conventional ventilating system.
The ventilating system includes a case 2 which is mounted on a wall for dividing indoor and outdoor, ventilating fans 4 and 6 which are mounted in the case 2, for ventilating air which is sucked and discharged, an air cleaner (not shown) which is installed in a portion to which the outdoor air inside the case 2 is sucked, for cleaning the outdoor air sucked to the indoor, and a heat exchanger 8 which is positioned inside the case 2, for performing a heat exchanging operation of indoor air discharged the outdoor and outdoor air sucked to the indoor.
Here, the case 2 is disposed in a hole formed on the wall for diving the indoor and outdoor, and accordingly, one side is positioned indoors and the other side is positioned outdoors. At this time, an outdoor suction hole 10 to
which outdoor air is sucked and an indoor discharging hole 12 through which indoor air is discharged to the outdoor are respectively formed on the side wall of the case 2 positioned outdoors, and an indoor discharging hole 14 through
which outdoor air is discharged to the indoor and an indoor suction hole 16 to which indoor air is sucked are respectively formed on the side wall of the case 2 positioned indoors.
The ventilating fans 4 and 6 includes a discharging ventilating fan 4 which is installed in a position connected with the outdoor discharging hole 12,
for providing a ventilating pressure for discharging the indoor air to the outdoor, and a suction ventilating fan 6 which is installed in a position connected with the indoor discharging hole 14, for providing a ventilating pressure for sucking
the outdoor air to the indoor.
Figure 2 is a perspective view showing a conventional heat exchanger of a ventilating system, and Figure 3 is a partial perspective view showing the
conventional heat exchanger of a ventilating system. The conventional heat exchanger 8 includes a plurality of base plates 20
which are laminated at a regular interval in a shape of a thin plate, first corrugation plates 22 which are respectively laminated in the spaces among
the base plates 20, through which indoor air passes, and second corrugation plates 24 which are respectively laminated in the base plates 20 to be mutually
at right angles to the first corrugation plates 22 in turn, through which outdoor air passes.
Here, the first and second corrugation plates 22 and 24 are curved in a triangular shape, and indoor and outdoor air passes to the inner and outer
sides thereof, thus to mutually exchange heat.
Such heat exchanger 8 is formed in a rectangular shape by sequentially laminating the first corrugation plates 22, base plates 20, and second corrugation plates 24. The upper and lower surfaces of the heat exchanger 8
are respectively closed by the base plate 20, and the both side surfaces of the
heat exchanger are connected with the outdoor suction hole 10 and indoor
discharging hole 14, and outdoor air passes therethrough. Another both side
surfaces of the heat exchanger are respectively connected with the outdoor discharging hole 12 and indoor suction hole 16, and indoor air passes therethrough.
That is, as the outdoor air which passes the first corrugation plates 22
and indoor air which passes the second corrugation plates 24 pass while being
crossed with each other, heat exchange is performed by transferring heat of
the indoor air through the base plates 20. The operation of the conventional heat exchanger for the ventilating system with the above composition will be described as follows.
When the sucking ventilating fan 6 is driven, the outdoor air is sucked to the outdoor suction port 10 and is supplied to the indoor through the indoor discharging hole 14 by passing the first corrugation plate 22. When the discharging ventilating fan 4 is driven, the indoor air is sucked to the indoor suction hole 16 and discharged to the indoor through the outdoor discharging hole 12 by passing the second corrugation plate 24. Here, as the outdoor air passing in the first corrugation plate 22 and indoor air passing the second corrugation plate 24 flow while being crossed with each other, heat in the indoor air is transferred to the outdoor air through the base plate 20, and the outdoor air which sucked the heat of the indoor air is supplied to the indoor. As described above, since heat in the discharged indoor air is sucked to the outdoor air and discharged to the indoor, rapid temperature change of the indoor air can be prevented in case of operating ventilation.
However, in the conventional heat exchanger of the ventilating system, the first and second corrugation plates 22 and 24 are formed in a shape of a plate having a corrugation of a predetermined shape, and a boundary layer S is developed as the air flowing in the first and second corrugation plates moves along from the inlet side to the outlet side. Therefore, heat transfer efficiency is degraded and indoor temperature is rapidly changed in case of ventilating since the outdoor air sucked to the indoor could not absorb heat in the indoor air. Also, energy consumption for recovering the indoor air is increased and indoor air conditioning performance is degraded.
That is, as shown in Figure 4, particles of viscous air which flow inside a pipe of the first and second corrugation plates 22 and 24 stick on the surface contacted on a surface of the inside of the pipe when the viscous air flows on the surface of the inside of the pipe. As the air gets apart from the surface of the inside of the pipe, the air recovers the speed and gains a speed of a free flow in a position at a predetermined distance from the surface of the solid material. At this time, as the air is get apart from the surface of the inside of the pipe, a boundary layer S is formed.
As described above, as the air flowing on the surface of the inside of the pipe is processed, the boundary layer is developed and the air gets apart from the surface of the inside of the pipe, thus to degrade heat transfer efficiency that the heat of the indoor air is transferred to the outdoor air through the base plate 20.
DISCLOSURE OF THE INVENTION
Therefore, an object of the present invention is to provide a heat exchanger of a ventilating system, capable of improving heat transfer performance by controlling development of a boundary layer by differentiating structure of the air flow of an air path through which indoor air passes and an air path through which outdoor air passes.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a heat exchanger of a ventilating system, including a heat exchange plates which are laminated at a predetermined interval and divide an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, a plurality of embossing protrusions which are attached on the outdoor air path divided by the heat exchange plates, for generating turbulence in the outdoor air which flows in the outdoor air path and a corrugation plate which is positioned in the indoor air path, for securing a space through which the indoor air passes.
A partition for preventing inflow of indoor air into the outdoor air path is attached on the both side surfaces of the outdoor air path on which the embossing protrusion of the heat exchanger is attached.
The embossing protrusion of the heat exchanger is formed in a convex shape having a predetermined height being attached on the upper surface of the heat exchange plate.
The embossing protrusions of a first row is aligned at a predetermined interval at the front of the heat exchange plate, embossing protrusions of a second row is aligned at a predetermined interval at the rear of the embossing protrusions of the first row, the embossing protrusions of the first row and the second row are sequentially aligned, and the embossing protrusions are respectively positioned in spaces among the embossing protrusions of the first row.
The heat exchanger of the ventilating system in accordance with the present invention includes a heat exchange plate for dividing an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, which are laminated at a predetermined interval, a corrugation plate which is attached on the outdoor air path which is divided by the heat exchange plates, for securing a space through which the outdoor air
passes and a plurality of embossing protrusions which are positioned in the indoor air path, for generating turbulence in the indoor air flowing in the indoor
air path.
The heat exchanger of the ventilating system in accordance with the
present invention includes a heat exchanging plate which is laminated at a
predetermined interval and divides an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, a plurality of outdoor embossing protrusions which are attached on the outdoor air path divided by the heat exchange plates, for generating turbulence in the outdoor
air which flows in the outdoor air path and a plurality of indoor embossing
protrusions which are positioned in the indoor air paths, for generating
turbulence in the indoor air which flows in the indoor air path.
The foregoing and other objects, features, aspects and advantages of
the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a partially cut perspective view showing the structure of a
general ventilating system;
Figure 2 is a partial perspective view showing a conventional heat
exchanger of a ventilating system; δ
Figure 3 is a perspective view showing a conventional corrugation plate of the heat exchanger of a ventilating system;
Figure 4 is a cross-sectional view showing a movement of the air in the pipe to which the conventional heat exchanger of a ventilating system is applied;
Figure 5 is a partial perspective view showing a heat exchanger of a ventilating system in accordance with the present invention;
Figure 6 is a partially resolving perspective view showing the heat exchanger of the ventilating system in accordance with an embodiment of the present invention; and
Figure 7 is a partially disassembled perspective view showing the heat exchanger of the ventilating system in accordance with a second embodiment of the present invention.
MODES FOR CARRYING OUT THE PREFERRED EMBODIMENTS
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
As the embodiment of the heat exchanger of the ventilating system in accordance with the present invention, there can be a plurality of them, and hereinafter, the most preferable one will be described.
Figure 5 is a perspective view showing a heat exchanger of a ventilating system in accordance with the present invention. With reference to Figure 1 , in the ventilating system in accordance with the present invention, a case 2 is mounted to penetrate a wall which divides the indoor and outdoor, a side surface of the case 2 is positioned indoors and the other side surface is positioned indoors. Here, an outdoor suction hole 10 through which the outdoor air is sucked and an outdoor discharging hole 12 through which the indoor air is discharged are respectively formed on a side surface positioned at the outdoor of the case 2, and an indoor suction hole 16 through which the indoor air is sucked and an indoor discharging hole 14 through which the outdoor air is discharged to the indoor are respectively formed on a side surface positioned at the indoor of the case 2.
A discharging ventilating fan 4 for giving a ventilating pressure for discharging the indoor air to the outdoor is installed in a position connected with the outdoor discharging hole 12 inside the case 2, and a suction ventilating fan 6 for giving a ventilating pressure for sucking the outdoor air to the indoor is installed in a position connected with the indoor discharging hole 14 inside the case 2.
An air cleaner (not shown) for removing foreign materials, dust and the like contained in the outdoor air is installed on the suction channel inside the case 2, and a heat exchanger 8 for transferring heat of the discharged indoor air to the sucked indoor air is installed inside the case 2.
As shown in Figure 5, the heat exchanger 8 includes heat exchange plates 50 which are laminated in a thin plate shape at a predetermined interval, a plurality of embossing protrusions 54 which are attached on the outdoor air path 52 divided by the heat exchange plates 50, for generating turbulence in the outdoor air which flows in the outdoor air path 52 and a corrugation plate 58 which is positioned in the indoor air path 56 which is at right angles to with the outdoor air path 52 in turn, for securing a space through which the indoor air passes.
A partition 60 for preventing inflow of indoor air into the outdoor air path 52 is attached on the both side surfaces of the heat exchanger 8 through which the outdoor air passes. On the other side surfaces of the heat exchanger 8 through which the indoor air passes are closed by the both side surfaces of the corrugation plate 58, and prevents inflow of the outdoor air.
Here, as shown in Figure 6, the embossing protrusions 54 is formed in a convex shape having a predetermined height on the upper surface of the heat exchange plate 50. The embossing protrusions 62 of a first row are aligned at a predetermined interval at the front of the heat exchange plate 8, the embossing protrusions 66 of a second row are aligned at a predetermined interval at the rear of the embossing protrusions 62 of the first row, and the embossing protrusions 62 and 66 of the first row and the second row are sequentially aligned.
Here, the embossing protrusions 66 of a second row are aligned at a predetermined interval at the rear of the embossing protrusions 62 of the first row so that the embossing protrusions of the second row can be diffused while being collided with the indoor air which passes the space among the embossing protrusions of the first row. In the corrugation plates 58, waves having a predetermined height are repeatedly formed, and the indoor air passes through the space formed by the wave.
The operation of the heat exchanger in accordance with an embodiment with the above structure will be described.
When the ventilating fan 6 is driven, the outdoor air is sucked through the outdoor suction hole 10, various dusts and foreign materials are removed passing the air cleaner, and the outdoor air is supplied through the indoor discharging hole 14 by passing the indoor air path 52. When the discharging ventilating fan 4 is driven, the indoor air is sucked through the indoor suction hole 16 and is discharged to the outdoor through the outdoor discharging hole 12 by passing the outdoor air path 56.
Here, as the outdoor air passing through the outdoor air path 52 and the indoor air passing through the indoor air path 56 flow while being crossed with each other, heat contained in the indoor air is sucked to the outdoor air through the heat exchange plate 50, and the heat exchanged outdoor air is supplied to the indoor.
In the operation of the heat exchanger, the outdoor air passing through the outdoor air path 52 is irregularly diffused while being collided with the embossing protrusion formed on the outdoor air path 52, and development of the boundary layer is prevented. As the air collided with the embossing protrusions 54 flows in contact with the surface of the heat exchange plate 50, and accordingly, heat transfer performance with the indoor air which passes the corrugation plate 58 formed on the indoor air path 56 can be improved.
Figure 7 is a partially disassembled perspective view showing the heat exchanger of the ventilating system in accordance with a second embodiment of the present invention. In the heat exchanger in accordance with the second embodiment, a plurality of heat exchange plates 50 are laminated at a predetermined interval, a corrugation plate 58 having corrugations formed at a predetermined interval is attached on the outdoor air path 52 through which the outdoor air passes among the heat exchange plates 50, and a plurality of embossing protrusions 54 are formed on the indoor air path 56 through which the indoor air passes.
That is, the heat exchanger 50 diffuses indoor air by providing a plurality of embossing protrusions 54 on the indoor air path 56 through which indoor air passes contrary to the above description of the first embodiment, and improves heat exchange performance with outdoor air which passes through the outdoor air path in which the corrugation plate 58 is installed.
Here, the embossing protrusion 54 is selectively provided to one of the indoor air path 56 or the outdoor air path 52 described above, or can be formed on the whole indoor air path 56 and outdoor air path 52. Also, the corrugation plate 58 and embossing protrusion 54 can be irregularly positioned not dividing the indoor and outdoor air paths 56 and 52.
As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.
INDUSTRIAL APPLICABILITY
The heat exchanger of the ventilating system can improve heat transfer performance by controlling development of the boundary layer by attaching a plurality of embossing protrusions on at least one air path of the air paths between an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes so that the air can be irregularly diffused. Also, as the heat exchange performance of the heat exchanger, indoor temperature change generated in case of ventilation, and accordingly energy consumption can be reduced. In addition, by maintaining the indoor temperature regularly, more comfortable indoor environment can be made.

Claims

1. A heat exchanger of a ventilating system, comprising: heat exchange plates which are laminated at a predetermined interval and divide an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes; a plurality of embossing protrusions which are formed on the outdoor air path divided by the heat exchange plates, for generating turbulence in the outdoor air which flows in the outdoor air path; and a corrugation plate which is positioned in the indoor air path, for securing a space through which the indoor air passes.
2. The exchanger of claim 1 , wherein a partition for preventing inflow of indoor air into the outdoor air path is attached on both side surfaces of the outdoor air path.
3. The exchanger of claim 1 , wherein the embossing protrusions are formed in a convex shape having a predetermined height on the upper surface of the heat exchange plate.
4. The exchanger of claim 1 , wherein the embossing protrusions of a first row are aligned at a predetermined interval at the front of the heat exchange plate, embossing protrusions of a second row are aligned at a predetermined interval at the rear of the embossing protrusions of the first row, the embossing protrusions of the first row and the second row are sequentially aligned, and the embossing protrusions of the second row are respectively positioned in spaces among the embossing protrusions of the first row.
5. The exchanger of claim 1 , wherein the outdoor air passing through the outdoor air path and the indoor air passing through the indoor air path which flow being crossed with each other.
6. A heat exchanger of a ventilating system, comprising: a heat exchange plate for dividing an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, which are laminated at a predetermined interval; a corrugation plate which is attached on the outdoor air path which is divided by the heat exchange plates, for securing a space through which the outdoor air passes; and a plurality of embossing protrusions which are positioned in the indoor air path, for generating turbulence in the indoor air flowing in the indoor air path.
7. The exchanger of claim 6, wherein partitions for preventing inflow of outdoor air to the indoor air path are respectively disposed on both side surfaces of the indoor air path.
8. The exchanger of claim 6, wherein the embossing protrusion is formed in a convex shape having a predetermined height on a upper surface of the heat exchange plate.
9. The exchanger of claim 6, wherein the embossing protrusions of a first row are aligned at a predetermined interval at the front of the heat exchange plate, the embossing protrusions of a second row are aligned at a predetermined interval at the rear of the embossing protrusions of the first row, the embossing protrusions of the first and second rows are sequentially aligned, and the embossing protrusions of the second row are positioned in spaces among the embossing protrusions of the first row.
10. The exchanger of claim 6, wherein the outdoor air passing through the outdoor air path and the indoor air passing through the indoor air path which flow being crossed with each other.
11. A heat exchanger of a ventilating system, comprising: heat exchanging plates which are laminated at a predetermined interval for dividing an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes; a plurality of outdoor embossing protrusions which are formed on the outdoor air path divided by the heat exchange plates, for generating turbulence in the outdoor air which flows in the outdoor air path; and a plurality of indoor embossing protrusions which are formed in the indoor air paths, for generating turbulence in the indoor air which flows in the indoor air path.
PCT/KR2002/002263 2002-12-02 2002-12-02 Heat exchanger of ventilating system Ceased WO2004051170A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CNB028301765A CN100449250C (en) 2002-12-02 2002-12-02 Heat exchangers for ventilation systems
PCT/KR2002/002263 WO2004051170A2 (en) 2002-12-02 2002-12-02 Heat exchanger of ventilating system
US10/536,956 US7267165B2 (en) 2002-12-02 2002-12-02 Heat exchanger of ventilating system
AU2002368421A AU2002368421B2 (en) 2002-12-02 2002-12-02 Heat exchanger of ventilating system
EP02791010A EP1573262B1 (en) 2002-12-02 2002-12-02 Heat exchanger of ventilating system
DE60225735T DE60225735T2 (en) 2002-12-02 2002-12-02 HEAT EXCHANGER OF A VENTILATION SYSTEM
AT02791010T ATE389859T1 (en) 2002-12-02 2002-12-02 HEAT EXCHANGER OF A VENTILATION SYSTEM
ES02791010T ES2302519T3 (en) 2002-12-02 2002-12-02 HEAT EXCHANGER OF A VENTILATION SYSTEM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2002/002263 WO2004051170A2 (en) 2002-12-02 2002-12-02 Heat exchanger of ventilating system

Publications (2)

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WO2004051170A2 true WO2004051170A2 (en) 2004-06-17
WO2004051170A3 WO2004051170A3 (en) 2005-03-03

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PCT/KR2002/002263 Ceased WO2004051170A2 (en) 2002-12-02 2002-12-02 Heat exchanger of ventilating system

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US (1) US7267165B2 (en)
EP (1) EP1573262B1 (en)
CN (1) CN100449250C (en)
AT (1) ATE389859T1 (en)
AU (1) AU2002368421B2 (en)
DE (1) DE60225735T2 (en)
ES (1) ES2302519T3 (en)
WO (1) WO2004051170A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252555A (en) * 2010-05-17 2011-11-23 上海雷林工程技术有限公司 Heat transfer sheet for gaseous phase plate type preheater
CN103363831A (en) * 2012-04-11 2013-10-23 上海雷林工程技术有限公司 Ellipsoidal corrugated heat transmission sheet structure for air/gas preheater
US10101057B2 (en) 2014-11-20 2018-10-16 Dantherm S.p.A Heating unit for a fuel air heater, method for manufacturing said heating unit, and fuel air heater comprising said heating unit

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4978303B2 (en) * 2007-05-15 2012-07-18 パナソニック株式会社 Heat exchange ventilator
JP4485583B2 (en) * 2008-07-24 2010-06-23 トヨタ自動車株式会社 Heat exchanger and manufacturing method thereof
TWM381055U (en) * 2009-11-25 2010-05-21 Asia Vital Components Co Ltd Fin structure for heat exchanger and heat exchanger thereof
CN102538547A (en) * 2010-12-28 2012-07-04 常州碳元科技发展有限公司 Self-adjusting high heat dissipation film composite material and manufacturing method thereof
CN106163208A (en) * 2015-03-24 2016-11-23 台达电子工业股份有限公司 Heat exchange module and electronic device using same
US20180306466A1 (en) * 2015-05-26 2018-10-25 Solarjoule Ip Holding Limited Improvements to heating, ventilation and air conditioning systems
CN107514649A (en) * 2017-07-27 2017-12-26 同济大学 Plate type large air volume air preheater
CN108662928A (en) * 2018-06-14 2018-10-16 北京兴晟科技有限公司 A kind of slurries heat-exchanger rig
FI3816566T3 (en) * 2018-06-27 2023-05-25 Welcon Inc Heat transport device and method for manufacturing same

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571631A (en) * 1947-02-26 1951-10-16 Kellogg M W Co Heat exchange element
US2511084A (en) * 1947-11-07 1950-06-13 Young Radiator Co Heat-exchanger core
US2959400A (en) * 1957-11-27 1960-11-08 Modine Mfg Co Prime surface heat exchanger with dimpled sheets
FR2069950B1 (en) * 1969-12-12 1974-07-12 Ctre Scient Tech Batimen
JPS5912974B2 (en) 1975-09-16 1984-03-27 晃一 斉田 Optical centering method using laser light in lens centering work
JPS5541336A (en) 1978-09-14 1980-03-24 Toyo Radiator Kk Core for use in laminated plate type heat exchanger and method of manufacturing the same
DE3220774C2 (en) * 1982-06-02 1986-09-25 W. Schmidt GmbH & Co KG, 7518 Bretten Plate evaporator or condenser
GB2159265B (en) * 1984-05-22 1987-05-28 Eric Smith Heat exchangers
JPS62225894A (en) * 1986-03-27 1987-10-03 Showa Alum Corp Heat exchanger
CN2064876U (en) * 1988-11-08 1990-10-31 哈尔滨建筑工程学院 Concave convex board type air-air heat exchanger
US5125453A (en) * 1991-12-23 1992-06-30 Ford Motor Company Heat exchanger structure
US5228515A (en) * 1992-07-31 1993-07-20 Tran Hai H Modular, compact heat exchanger
DE19549801B4 (en) * 1995-03-31 2008-01-17 Behr Gmbh & Co. Kg Plate heat exchanger
US5730213A (en) * 1995-11-13 1998-03-24 Alliedsignal, Inc. Cooling tube for heat exchanger
SE521816C2 (en) * 1999-06-18 2003-12-09 Valeo Engine Cooling Ab Fluid transport pipes and vehicle coolers
DE10127084B4 (en) * 2000-06-17 2019-05-29 Mahle International Gmbh Heat exchanger, in particular for motor vehicles
DE10034343C2 (en) * 2000-07-14 2003-04-24 Balcke Duerr Energietech Gmbh Plate heat exchanger
JP3774843B2 (en) * 2001-05-25 2006-05-17 マルヤス工業株式会社 Multi-tube heat exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252555A (en) * 2010-05-17 2011-11-23 上海雷林工程技术有限公司 Heat transfer sheet for gaseous phase plate type preheater
CN103363831A (en) * 2012-04-11 2013-10-23 上海雷林工程技术有限公司 Ellipsoidal corrugated heat transmission sheet structure for air/gas preheater
US10101057B2 (en) 2014-11-20 2018-10-16 Dantherm S.p.A Heating unit for a fuel air heater, method for manufacturing said heating unit, and fuel air heater comprising said heating unit

Also Published As

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US7267165B2 (en) 2007-09-11
AU2002368421B2 (en) 2007-10-04
DE60225735T2 (en) 2009-04-23
EP1573262A2 (en) 2005-09-14
WO2004051170A3 (en) 2005-03-03
CN1735786A (en) 2006-02-15
AU2002368421A1 (en) 2004-06-23
DE60225735D1 (en) 2008-04-30
US20060060337A1 (en) 2006-03-23
CN100449250C (en) 2009-01-07
ES2302519T3 (en) 2008-07-16
EP1573262B1 (en) 2008-03-19
ATE389859T1 (en) 2008-04-15

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