JP5277647B2 - Heat exchange device and heating element storage device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve heat exchanging efficiency with respect to a heat exchanging device and a heating element storing device using the same. <P>SOLUTION: In this heat exchanging device 6 comprising a centrifugal blower 12 comprising a scroll casing 12a, and a heat exchanger 14 communicated with the downstream of a flow channel of the centrifugal blower 12, a heat exchanger 14 is constituted by superposing a plurality of plate bodies 15, 16 provided with a plurality of straightening walls 22, 23 partitioning a surface into the lane shape, in a separated state from each other at prescribed intervals, the lanes are arranged to be long from the lane at an end toward the lane of the other end. The centrifugal blower is disposed with a rotating shaft of the centrifugal blower and the stacking direction of the plate bodies 15, 16 of the heat exchanger 14 in parallel with each other, and an end portion at a lane side long to an inflow opening 20 of the heat exchanger 14 and an anti-tongue portion side of a discharge opening 12b of the scroll casing 12a are roughly joined. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a heat exchange device and a heating element storage device using the heat exchange device.

  For example, since a current of several tens of amperes or more flows in a mobile phone base station, it is also expressed as a heating element in a certain point. In other words, cooling is extremely important in order to stabilize the operation. Such a mobile phone base station has the following configuration in order to cool it (see FIG. 8).

That is, it has a configuration including a cabinet in which a transmitter / receiver serving as a heating element is stored, and a heat exchange device 101 mounted in an opening of the cabinet. The structure of the heat exchanging device 101 includes a main body case 111 having a first intake port 107 and a first discharge port 108 for outside air, and a second intake port 109 and a second discharge port 110 for use in the cabinet, and this main body. A first blower 112 for outside air and a second blower 113 for cabinet inside provided in the case 111, and a heat exchanger 114 for exchanging heat between outdoor air and cabinet air in the main body case 111 are provided. It was a composition. The 1st air blower 112 and the 2nd air blower 113 were arrange | positioned so that the 1st, 2nd inlet 107,109 might be located in the rotating shaft direction. In other words, the air inlet of the blower and the first and second air inlets 107 and 109 face each other (Japanese Patent Laid-Open No. 2000-161875 is a similar prior document).
JP 2000-161875 A

  In the conventional heat exchange device, the air blown out from the blower is diffused and blown out around the entire periphery of the blower. The air blown out over the entire circumference moves in the direction upward (or downward) in the figure. At this time, in the room where the air blower was placed, it was easy to generate a puddle, and the air blowing efficiency was low.

  Then, this invention aims at improving ventilation efficiency.

And in order to achieve this object, the present invention is a heat exchange device comprising a centrifugal fan provided with a scroll casing and a heat exchanger connected downstream of the air passage of the centrifugal fan, wherein the heat exchanger Are polymerized in a state where a plurality of plate bodies provided with a plurality of rectifying walls partitioning in a lane shape on the surface are separated from each other by a predetermined distance, and the lane is directed from the lane on one end side toward the lane on the other end side. The centrifugal blower has a configuration in which the length is increased, and the centrifugal fan has a rotational axis direction parallel to a laminating direction of the plate of the heat exchanger, and the heat exchange. It is arranged so that the end on the long lane side and the opposite tongue portion side of the discharge outlet of the scroll casing are substantially joined to the inlet of the container, the scroll casing and the heat exchanger are accommodated inside, and the outside air is Inhaled air intake and vomiting Has a body case having a mouth, said air inlet, and confront the centrifugal fan, wherein a rectangular opening in the side surface of the main body case, the upper side of the opening so as to block the sound of the centrifugal air blower Is provided below the rotational axis of the centrifugal blower, and the airflow flowing into the centrifugal blower from the intake port smoothly flows in the rotational direction from the tangential direction of the centrifugal blower. To achieve the intended purpose.

As described above, the present invention is a heat exchange device including a centrifugal blower provided with a scroll casing and a heat exchanger connected downstream of the air passage of the centrifugal blower, and the heat exchanger has a lane on the surface. A plurality of plate bodies provided with a plurality of rectifying walls that are partitioned into a shape are polymerized in a state of being spaced apart from each other by a predetermined distance, and the length of the lane increases from the lane on one end side toward the lane on the other end side. The centrifugal blower has a configuration in which the rotational axis direction of the centrifugal blower and the stacking direction of the plate of the heat exchanger are parallel to each other and at the inlet of the heat exchanger. On the other hand, the end of the long lane side and the opposite tongue portion side of the discharge outlet of the scroll casing are arranged so as to be substantially joined, and the intake casing is configured to house the scroll casing and the heat exchanger and suck outside air And main unit with a discharge port It has a scan, the air inlet opposed to the centrifugal fan, wherein a rectangular opening in the side surface of the main body case, the upper side of the opening so as to block the sound of the centrifugal blower of the centrifugal blower Since the airflow flowing into the centrifugal blower from the intake port smoothly flows along the rotational direction from the tangential direction of the centrifugal blower, the sound generated by the centrifugal blower is provided so as to be lower than the rotation shaft. Since the airflow flowing into the centrifugal blower from the air inlet smoothly flows in, the air blowing efficiency is improved. Further, in the present invention, air is blown out at a lower pressure than the non-tongue side on the tongue side of the discharge port of the scroll casing incorporating the centrifugal blower, so the air blown from the non-tongue side is heated. By passing the lane on the long side of the exchanger and the air blown out from the tongue side through the lane on the short side of the heat exchanger, the air speed passing through the heat exchanger is made uniform, improving the blowing efficiency And the heat exchange efficiency can be improved. The heat exchanger includes a centrifugal blower provided with a scroll casing and a heat exchanger connected downstream of the air passage of the centrifugal blower, wherein the heat exchanger has a plurality of rectifications partitioned on a surface in a lane shape. A plurality of plates provided with walls are polymerized in a state of being spaced apart from each other by a predetermined distance, and the lanes are arranged so that the length increases from the lane on one end side toward the lane on the other end side. The centrifugal blower has a structure in which the rotational axis direction of the centrifugal blower and the stacking direction of the plate of the heat exchanger are parallel to each other and on the long lane side with respect to the inlet of the heat exchanger. A first centrifugal blower having a first environmental scroll casing disposed on a first end side of the heat exchanger, the end of the scroll casing being disposed so as to be substantially joined to a side opposite to the tongue of the discharge outlet of the scroll casing; On the second end side of the heat exchanger A second centrifugal fan provided with a scroll casing for two environments, the air in the first environment sucked from the first air inlet by the first centrifugal fan and flowing into the heat exchanger and flowing out into the first environment; The second centrifugal blower performs heat exchange with the air in the second environment that is sucked from the second intake port and flows into the heat exchanger and supplied to the second environment, and the second centrifugal blower A control box of the heat exchange device is disposed between the tongue of the scroll casing and the second environmental side wall surface of the main body case, and a vent is provided in the second environmental side wall surface where the control box is disposed, and the second centrifugal blower The air in the second environment sucked from the air vent by the air is cooled with the second environment air sucked from the second air inlet after the control box is cooled, and the air in the first environment is sucked by the heat exchanger. Heat exchange with Is supplied to the second environment after, the first air inlet opposed to the first centrifugal blower, wherein a rectangular opening in the side surface of the main body case, blocks the sound of the first centrifugal blower Thus, the opening is provided so that the upper side of the opening is lower than the rotation axis of the first centrifugal blower, and the airflow flowing into the first centrifugal blower from the first inlet is from the tangential direction of the first centrifugal blower. along the direction of rotation heat exchanger, characterized that you flowing smoothly, by a the, can be cooled in the control box efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
In FIG. 1, reference numeral 1 denotes a building, and a mobile phone base station 3 is provided on the rooftop 2 thereof. The base station 3 includes a box-shaped cabinet 4, a transmitter / receiver 5 provided in the cabinet 4, and a heat exchange device 6 provided at the front opening of the cabinet 4 so as to be opened and closed like a door.

  In FIG. 2, the heat exchanging device 6 includes a first intake port 7 and a first discharge port 8 for outside air (first environment) and a second intake port 9 and a second discharge port for inside the cabinet 4 (second environment). A main body case 11 having an outlet 10, a first blower 12 for outside air (first environment) and a second blower 13 for inside the cabinet 4 (second environment) provided in the main body case 11, and the main body case 11 includes a heat exchanger 14 that performs heat exchange between the air in the outside air (first environment) and the air in the cabinet 4 (second environment).

  As shown in FIGS. 3 and 4, the heat exchanger 14 has a rectangular synthetic resin-made second plate body 16, a second synthetic resin-made second plate body 16 on the surface of a rectangular synthetic resin-made first plate body 15. A third plate 17 made of synthetic resin (hereinafter, a plurality of plates is used in the same manner) was polymerized on the surface of the plate 16 as shown in FIG. It is configured.

  The upper surface in FIG. 4 of the heat exchanger 14 thus superposed is an inlet 18 through which the air in the cabinet 4 flows in via the second air inlet 9, and heat exchange from this inlet 18 The air that has flowed into the vessel 14 is then discharged into the cabinet 4 from the outlet 19 provided on the lower right side of FIG.

  Moreover, the outside air outside the cabinet 4 flows in from the inlet 20 provided on the lower surface in FIG. 4 and flows out of the cabinet 4 from the outlet 21 provided on the upper left side.

  Such ventilation will be described in more detail later, but the heat exchanger 14 cools the transmitter / receiver 5. That is, a current of several tens of amperes or more flows in the transmitter / receiver 5, and the temperature rises accordingly. If the temperature of the transmitter / receiver 5 is left as it is, its characteristics become unstable. In the present embodiment, as described above, the heat exchanger 14 cools the inside of the cabinet 4 by heat exchange with the outside air. Thus, the transmitter / receiver 5 is prevented from becoming unstable.

  The heat exchanger 14 as described above has a rectangular synthetic resin-made second plate 16 and a second synthetic resin on the surface of the rectangular-shaped synthetic resin-made first plate 15 shown in FIG. A third plate 17 made of synthetic resin is polymerized on the surface of the plate 16.

  More specifically, on the surface of the first plate 15 on the second plate 16 side, a plurality of first rectifying walls 22 that partition the surface of the first plate 15 in a lane shape, the second plate On the surface of the plate body 16 on the third plate body 17 side, a plurality of second rectifying walls 23 (the third plate body 17 is located on the right side in FIG. 5) that partitions the surface of the second plate body 16 in a lane shape. Each of which is provided with a rectifying wall for the plate body).

  The first to third plate bodies 15, 16, and 17 have a rectangular shape that is long in the vertical direction, and the first plate body 15 has a first shape extending from the lower end (one end) toward the upper end (the other end). The flow straightening wall 22 is extended. Further, the first rectifying wall 22 is shaped to be bent toward the left long side (first long side) in FIG. 5 before the upper end side, and the left long side portion becomes the outlet 21. ing.

  Next, the second plate 16 extends the second rectifying wall 23 from the upper end (the other end) toward the lower end (the one end), and the right long side (the first side in FIG. The long side portion on the right side is the discharge port 19. (Here, further explanation is simplified, but thereafter the first plate 15 and the second plate 16 are alternately polymerized in the same manner. However, in this embodiment, claims are made. In order to ensure consistency with the terms, 17 is expressed as a third plate, but the third plate 17 and the first plate 15 are the same.) In such a heat exchanger 14 Air passages (lanes) having different lengths can be formed on one plate body (first plate body 15 and second plate body 16). The length of the air passage is gradually increased from the shortest air passage.

  On the other hand, the 1st blower 12 and the 2nd blower 13 are centrifugal blowers provided with scroll casings 12a and 13a, respectively. The first blower 12 and the second blower 13 are arranged so that their rotation axes are parallel to the stacking direction of the heat exchanger 14. Further, the air outlets 12b and 13b have the tongue 12c and 13c side on the short air path (short lane) side of the heat exchanger 14, and the anti-tongue side on the long air path of the heat exchanger 14. Arranged to be on the (long lane) side.

  Now, according to the above configuration, the air heated by the transmitter / receiver 5 in the cabinet 4 is sucked into the second blower 13 from the second air inlet 9 of the heat exchange device 6, and the inflow port 18. Flows into the heat exchanger 14, passes through the space between the second plate body 16 and the third plate body 17, and is returned to the cabinet 4 through the outlet 19 and the second discharge port 10. Thus, the transmitter / receiver 5 is cooled. On the other hand, outside air is sucked into the first blower 12 from the first air inlet 7 and flows into the heat exchanger 14 from the inlet 20, passes between the first plate body 15 and the second plate body 16, It flows out of the cabinet 4 through the outlet 21 and the first outlet 8.

  Here, the outside air passing between the first and second plate bodies 15 and 16 and the air inside the cabinet nut 4 passing between the second and third plate bodies 16 and 17 are respectively the first and second plates. The first and second rectifying walls 22 and 23 provided on the two plate bodies 15 and 16 are uniformly distributed over the entire surface of the plate body, so that heat exchange between the outside air and the air in the cabinet is performed over a wide area.

  The air blown out from the blower will be described taking the case of the first blower 12 as an example. The first blower 12 includes a scroll casing 12a. The air blown over the entire circumference of the centrifugal fan is corrected by the scroll casing 12a and flows in the direction of the outlet 12b. At the air outlet 12b, air is blown out from the tongue portion 12c side at a pressure lower than that on the opposite tongue portion side. This low-pressure air is sent to the short air path (short lane) side of the heat exchanger 14 (provided on the first plate 15). On the other hand, the air blown from the opposite tongue side of the outlet 12b is sent to the long air path (long lane) side of the heat exchanger 14.

  When heat exchange is performed in this way, high-pressure air is sent to the long air passage, that is, the air passage having a large pressure loss, and low-pressure air is sent to the short air passage, that is, the air passage having a small pressure loss. As a result, the air flowing through the heat exchanger 14 is made uniform, so that the air exchange efficiency can be improved and the heat exchange efficiency can be improved.

  The first air inlet 7 for outside air (first environment) is provided on the front side of the main body case 11, that is, on the same surface as the first outlet 8, at a position facing the first blower 12. A rectangular opening. The upper side is provided below the rotation axis of the first blower 12, that is, on the side opposite to the heat exchanger 14.

  According to such a configuration, the flow of air sent by the first blower 12 is discharged from the first discharge port via the first intake port 7 to the first blower 12 to the inflow port 20 to the outflow port 21. As shown by the broken line in FIG. Since the surface facing the first blower 12 and provided with the first air inlet 7 is provided below the rotation axis of the first blower 12, the sound insulation effect that the sound generated by the first blower 12 is blocked. Will have. Moreover, since the airflow which flows in into the 1st centrifugal blower 12 from the 1st inlet port 7 flows in smoothly along the rotation direction from the tangential direction of the 1st centrifugal blower 12, the effect that ventilation efficiency improves is improved. Yes (the flow of air is indicated by broken lines in FIG. 2).

  As shown in FIG. 5, the first air inlet 7 may be provided on the bottom surface of the main body case 11.

  Moreover, the example of arrangement | positioning of the 1st air blower 12 is shown in FIG. This figure is the figure which looked at the 1st air blower 12 from the 1st inlet-port 7 side. As shown in this figure, a plurality of impellers can be arranged in the lateral direction as long as space permits. The position of the motor 33 may not be in the middle of the impeller. Further, a motor 33 may be provided for each impeller. By using a plurality of impellers in this way, the height h of the fan arrangement space can be reduced.

  Further, the second blower 13 is also arranged on the upper side of the heat exchanger 14 so that the direction of the rotation axis is parallel to the stacking direction of the heat exchanger 14. The tongue 13c is arranged on the cabinet 4 side. A control box 31 for driving the heat exchange device 6 is provided between the tongue portion 13c and the main body case 11. A vent 32 is provided on the wall surface on the cabinet 4 side to which the control box 31 is attached. In the control box 31, a circuit with heat generation as shown in FIG. 7 is housed.

  According to such a configuration, when the second blower 13 is operated, air warmed in the cabinet 4 is sucked from the second air inlet 9 and the air vent 32. The air sucked from the air vent 32 cools the control box 31 and then merges with the air sucked from the second air inlet 9, and the air path provided on the second plate 16 of the heat exchanger 14 After passing through and exchanging heat with the outside air (first environment), the air is supplied again from the second discharge port 10 into the cabinet 4. Therefore, the control box 31 can be efficiently cooled. In the present embodiment, the control box 31 is used, but it is not always necessary to place it in the box.

  As described above, the present invention is a heat exchange device including a centrifugal blower provided with a scroll casing and a heat exchanger connected downstream of the air passage of the centrifugal blower, and the heat exchanger has a lane on the surface. A plurality of plate bodies provided with a plurality of rectifying walls that are partitioned in a shape are polymerized in a state of being spaced apart from each other by a predetermined distance, and the length of the lane increases from the lane at the end toward the lane at the other end. The centrifugal blower is long so that the rotating shaft of the centrifugal blower and the laminating direction of the plate of the heat exchanger are parallel to each other and the inlet of the heat exchanger is long. Since the end portion on the lane side and the opposite tongue portion side of the discharge port of the scroll casing are disposed so as to be substantially joined, heat exchange efficiency can be improved. That is, in the present invention, the wind blown from the centrifugal blower is corrected by the scroll casing, and further, the heat exchanger is passed with a pressure loss corresponding to the pressure of the blown air that differs depending on the blowout position, so heat exchange is performed on the entire plate body. It can be carried out. Therefore, for example, it is extremely useful as a cooling facility in a base station of communication equipment or other outdoor equipment.

The perspective view which shows the example of installation of one Embodiment of this invention Sectional drawing of the heat exchange apparatus of one Embodiment of this invention The disassembled perspective view of the heat exchanger of one Embodiment of this invention The perspective view of the heat exchanger of one Embodiment of this invention Sectional drawing of the heat exchange apparatus of one Embodiment of this invention Sectional drawing which shows the air blower installation state of one Embodiment of this invention The figure which shows the control circuit of one Embodiment of this invention Sectional view of a conventional heat exchange device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building 2 Rooftop 3 Base station 4 Cabinet 5 Transmitter / receiver 6 Heat exchange device 7 1st inlet port 8 1st outlet port 9 2nd inlet port 10 2nd outlet port 11 Main body case 12 1st fan 12a Scroll casing 12b blowing Outlet 12c Tongue 13 Second fan 13a Scroll casing 13b Outlet 13c Tongue 14 Heat exchanger 15 First plate 16 Second plate 17 Third plate 18 Inlet 19 Outlet 20 Inlet 21 Flow Outlet 22 First rectifying wall 23 Second rectifying wall 31 Control box 32 Vent

Claims (3)

A heat exchanger comprising a centrifugal blower provided with a scroll casing and a heat exchanger connected downstream of the air passage of the centrifugal blower, wherein the heat exchanger has a plurality of rectifying walls partitioned on a surface in a lane shape. The plurality of provided plates are superposed at a predetermined interval, and the lanes are arranged so that the length increases from the lane on one end side toward the lane on the other end side. Yes, the centrifugal blower has an end on the lane side that is long with respect to the inlet of the heat exchanger so that the rotational axis direction of the centrifugal blower is parallel to the laminating direction of the plate of the heat exchanger And a body case provided with an intake port and a discharge port through which the scroll casing and the heat exchanger are accommodated and outside air is sucked. The air inlet , Confronted with the centrifugal fan, wherein a rectangular opening in the side surface of the main body case, as the upper side of the opening so as to block the sound of the centrifugal air blower is below the rotational axis of the centrifugal blower Provided ,
The air flow flowing into the centrifugal fan from the intake port, the heat exchange device, characterized that you flows smoothly along the direction of rotation from the tangential direction of the centrifugal blower. A heat exchanger comprising a centrifugal blower provided with a scroll casing and a heat exchanger connected downstream of the air passage of the centrifugal blower, wherein the heat exchanger has a plurality of rectifying walls partitioned on a surface in a lane shape. The plurality of provided plates are superposed at a predetermined interval, and the lanes are arranged so that the length increases from the lane on one end side toward the lane on the other end side. Yes, the centrifugal blower has an end on the lane side that is long with respect to the inlet of the heat exchanger so that the rotational axis direction of the centrifugal blower is parallel to the laminating direction of the plate of the heat exchanger And a first centrifugal blower provided with a scroll casing for the first environment on the first end side of the heat exchanger, arranged so that the tongue side of the discharge outlet of the scroll casing is substantially joined. A second ring on the second end side of the heat exchanger A second centrifugal blower having a scroll casing is provided, and the first centrifugal air is sucked from the first intake port by the first centrifugal blower, flows into the heat exchanger, and flows out to the first environment, and the second A scroll casing of the second centrifugal blower performs heat exchange with the air of the second environment sucked from the second air inlet by the centrifugal blower and flows into the heat exchanger and supplied to the second environment by the heat exchanger. A control box of the heat exchange device is disposed between the tongue portion of the main body case and the second environmental side wall surface of the main body case, and a vent hole is provided in the second environmental side wall surface where the control box is disposed. The air in the second environment sucked from the vent is merged with the air in the second environment sucked from the second air inlet after the control box is cooled, and the air in the first environment is merged with the air in the first environment by the heat exchanger. Heat exchange It is supplied to the second environment after
The first intake port is a rectangular opening provided on a side surface of the main body case so as to face the first centrifugal fan, and an upper side of the opening is the first opening so as to block sound of the first centrifugal fan. Provided below the rotating shaft of the centrifugal blower,
The air flow flowing from the first intake port to the first centrifugal blower, heat exchanger, characterized that you flows smoothly along the direction of rotation from the tangential direction of the first centrifugal blower. A heating element storage device comprising a cabinet storing a heating element and the heat exchange device according to claim 1 or 2 attached to an opening of the cabinet.

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