KR100722522B1 - Ventilation system - Google Patents

Abstract

The present invention relates to a solar heat collecting unit. The solar heat collecting unit according to the present invention has a solar heat collecting plate formed in a plate shape, the heat collecting surface capable of collecting solar heat and the heat generating surface for radiating the heat collected by the air in the ventilation layer are formed on the front and back, respectively; A cover member formed of a transparent material to allow sunlight to penetrate and covering the heat collecting surface of the solar heat collecting plate; And a sealed air layer sealed between the heat collecting surface of the solar heat collecting plate and the cover member. The heat generating surface of the solar heat collecting plate is characterized in that heat is generated.

The present invention also relates to a ventilation system capable of simultaneously heating and ventilating an indoor space by supplying the sucked outside air by solar heat to the indoor space. Ventilation system according to the present invention, the ventilation layer through which air can flow, the inlet for interconnecting the ventilation layer and the outside so that outside air can be introduced into the ventilation layer, and the air of the ventilation layer is injected into the interior space A case having an injection hole connecting the indoor space to the ventilation layer so as to be transparent, and formed of a transparent material to allow sunlight to pass therethrough; And a plurality of heat collecting units provided in the ventilation layer.

Solar Collectors, Heating Pipes

Description

Ventilation system

1 is a schematic configuration diagram of a conventional heating ventilation system.

Figure 2 is a schematic configuration diagram of a heating ventilation system using a conventional solar heat.

3 is a schematic perspective view of a heat collecting unit according to a preferred embodiment of the present invention.

4 is a schematic structural diagram of a ventilation system according to a preferred embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view taken along the line VV of FIG. 4.

6 is a photograph of testing the ventilation system shown in FIG. 4.

FIG. 7 is a diagram illustrating a test result of heating performance of the ventilation system illustrated in FIG. 4.

FIG. 8 is a diagram illustrating a test result of heating and ventilation performance of the ventilation system illustrated in FIG. 4.

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

100 ... ventilation system 10 ... case

11 ... vent layer 12 ... inlet

13 ... inlet 14 ... exhaust

15 ... outlet 20 ... solar heat collecting unit

21 ... solar panels 22 ... solar panels

23 ... heating surface 24 ... cover member

29 ... airtight air layer 31 ... heating water pipe

32 ... heat sink fin c ... heat collection surface temperature

x ... inlet air temperature v ... inlet air velocity

p ... piping

The present invention relates to a solar heat collecting unit and a ventilation system using the same, and more particularly, it is possible to heat and ventilate the indoor space very effectively using solar heat, and the heat collecting structure is improved to reduce energy use. A unit and a ventilation system using the same.

In order to keep the indoor space comfortable in offices or houses, it must be regularly ventilated. In addition, in winter, the indoor space should be maintained at a constant temperature by using a warm air fan. However, there is a problem that the heating efficiency is lowered when the window is opened for ventilation. Accordingly, in a conventional heating and ventilation system, it is common to heat outdoor air and introduce it into an indoor space. Such a conventional heating and ventilation system is shown in FIG. 1.

1 is a schematic configuration diagram of a conventional heating ventilation system. 1 shows three rooms R1, R2, R3 separated by a wall w. These three rooms (R1, R2, R3) are connected by a duct (d), which extends to the outside of the building (b) so that outdoor air can be introduced. A fan f is provided in this duct d for introducing outdoor air, and a heater h is provided at the rear of the fan f. In this conventional heating and ventilation system, as shown by the arrows in FIG. 1, the outdoor air is introduced into the duct d by the fan f and then heated by the heater h so as to display each room R1,. R2, R3). As the air flows in from the outside, the indoor space can be heated to solve the problems caused by the above heating and ventilation at the same time. However, since the fan (f) and the heater (h) must be used to operate such a system, there is a problem that a lot of energy is consumed.

In order to solve this problem, recently, heating and ventilation systems using solar heat have been used. This solar heating and ventilation system is shown in FIG. 2.

Figure 2 is a schematic configuration diagram of a heating ventilation system using a conventional solar heat. Referring to Figure 2, the heating ventilation system using a conventional solar heat is installed on the outside of the building (2). The system has a case 3 formed transparently, and an inlet 4 for introducing outside air is formed in the lower part of the case 3. In addition, the upper part of the case 3 is provided with a connecting pipe 5 for supplying the introduced air into the room. A plurality of solar heat collecting plates 6 are disposed in the case 3. The upper surface of this solar heat collecting plate 6 collects solar heat as the collecting surface 6a. In the conventional heating and ventilation system having such a configuration, outside air introduced through the inlet 4 is heated by the solar heat collecting plate 6. The heated air rises and flows into the indoor space through the connection pipe 5 to perform heating and ventilation. However, in the conventional solar heating and ventilation system, the heating of the air by the solar heat collecting plate 6 is not performed smoothly. Accordingly, the heating of the air is not sufficient, and the heated air flows into the indoor space. Lifted up. That is, the cold air introduced from the outside through the inlet port 4 cools the heat collecting surface 6a of the solar heat collecting plate 6 so that the heat collecting surface 6a is not collected at a sufficient high temperature, thereby heating the air. There was a problem that was not enough.

The present invention is to solve the above problems, the heat collecting surface of the solar heat collecting plate can be collected at a sufficient high temperature to provide a solar heat collecting unit with improved heat collecting efficiency.

In addition, another object of the present invention is to provide a ventilation system having an improved structure to reduce energy use while improving heating and ventilation efficiency using the solar heat collecting unit.

The solar heat collecting unit according to the present invention for achieving the above object is formed in a plate shape, the heat collecting surface capable of collecting solar heat and the heat generating surface for radiating the heat collected by air in the ventilation layer on the front and back Solar heat collecting plates each formed; A cover member formed of a transparent material to allow sunlight to penetrate and covering the heat collecting surface of the solar heat collecting plate; And a sealed air layer sealed between the heat collecting surface of the solar heat collecting plate and the cover member. The heat generating surface of the solar heat collecting plate is characterized in that heat is generated.

Ventilation system according to the present invention for achieving the above another object is to ventilate the room by sucking and heating the outside air to supply to the indoor space, a ventilation layer through which air can flow, the outside air flows into the ventilation layer And an inlet for interconnecting the ventilation layer and the outside so as to be able to be formed, and an inlet for connecting the interior space and the ventilation layer to allow the air of the ventilation layer to be injected into the interior space, and formed of a transparent material to allow sunlight to pass therethrough. case; And a plurality of ventilation layers formed on the inside of the case, each of which has a heat collecting surface capable of collecting solar heat and a heat generating surface which radiates the collected heat to the air in the ventilation layer, respectively, on the front and back surfaces thereof. A heat collecting unit having a solar heat collecting plate, a cover member formed of a transparent material to allow sunlight to pass through, and covering a heat collecting surface of the solar heat collecting plate, and a sealed air layer sealed between the heat collecting plate and the cover member of the solar heat collecting plate; It is characterized in that the air in the ventilation layer is heated by the heat generating surface of the solar heat collecting plate.

According to the invention, the inlet is disposed in the lower portion of the case, the inlet is preferably disposed on the upper portion of the case.

In addition, according to the present invention, the lower portion of the case is provided with an exhaust port for connecting the ventilation layer and the indoor space so that the air of the indoor space is exhausted to the ventilation layer, the upper portion of the case is exhausted to the indoor space It is preferable that an outlet for connecting the ventilation layer and the outside is provided so that air can be discharged to the outside.

Further, according to the present invention, the first stopper for selectively opening and closing the inlet, the second stopper for selectively opening and closing the inlet, the third stopper for selectively opening and closing the exhaust and the outlet It is preferable to further provide a fourth stopper that can be opened and closed selectively.

In addition, according to the present invention, it is preferable that the case is further provided with a heating means for heating the air in the ventilation layer.

According to the present invention, the heating means is a heating water pipe embedded in the floor of the indoor space, the heating water pipe is preferably disposed to pass through the ventilation layer of the case from the floor of the indoor space.

In addition, according to the present invention, it is preferable that a plurality of heat dissipation fins are provided at a portion of the heating water pipe passing through the ventilation layer of the case.

Hereinafter, with reference to the accompanying drawings, a solar heat collecting unit and a ventilation system using the same according to the present invention will be described in more detail.

3 is a schematic perspective view of a heat collecting unit according to a preferred embodiment of the present invention, 4 is a schematic configuration diagram of a ventilation system according to a preferred embodiment of the present invention, and FIG. 5 is a schematic sectional view taken along line V-V of FIG.

3 to 5, the ventilation system 100 according to the present invention includes a case 10 and a solar heat collecting unit 20.

The case 10 is disposed outside of the building, and more particularly, is disposed facing south to ensure a stable amount of solar radiation. The case 10 is formed of a transparent material such as glass or an acryl plate to allow sunlight to pass therethrough, and a space for accommodating and flowing air, that is, a ventilation layer 11 is provided therein.

In addition, an inlet 12 is formed at the bottom of the case 10 to allow external air to flow into the ventilation layer 11. The inlet 12 allows the ventilation layer 11 and the outside to communicate with each other. In this embodiment, the inlet 12 is arranged in plural along the longitudinal direction of the case 10. In addition, each inlet 12 is provided with a first plug (not shown) for selectively opening and closing the inlet 12.

An injection hole 13 is provided on the upper rear surface of the case 10. The injection hole 13 is a passage for injecting air in the ventilation layer 11 into an indoor space not shown. In this embodiment, the injection hole 13 is connected to an indoor space (not shown) by a pipe p. In communication. In the present embodiment, the inlet 13 is arranged in plural along the longitudinal direction of the case 10, the number is the same as the inlet 12. In addition, a second stopper (not shown) for selectively opening and closing the injection hole 13 is provided in each injection hole 13.

An exhaust port 14 is provided on the lower rear surface of the case 10. This exhaust port 14 is for allowing air in the indoor space to be exhausted to the ventilation layer 11, and is in communication with the indoor space by a pipe (not shown) or the like. In the present embodiment, a plurality of exhaust ports 14 are arranged along the longitudinal direction of the case 10. In addition, a third stopper (not shown) for selectively opening and closing this exhaust port 14 is provided in each exhaust port 14.

In addition, an outlet 15 is provided on the upper front surface of the case 10 to allow air in the ventilation layer 11 to be discharged to the outside. This outlet 15 is arranged in the same number as the outlet 14. The case 10 is provided with a fourth stopper (not shown) for selectively opening and closing the outlets 15.

The solar heat collecting unit 20 collects solar heat and is disposed in the case 10, that is, in the ventilation layer 11. In the present embodiment, the solar heat collecting unit 20 is disposed in plural along the height direction of the case 10. The solar heat collecting unit 20 includes a solar heat collecting plate 21, a cover member 24, and a sealed air layer 29.

The solar heat collecting plate 21 is a well-known member, which is mainly made of a metal material, and is generally formed in a dark series to efficiently collect solar heat. The solar heat collecting plate 21 is inclined with respect to the ground in order to increase the heat collecting efficiency. The front surface of the solar heat collecting plate 21 is a heat collecting surface 22 to which sunlight is directly irradiated, and the back surface is a heat generating surface 23 in which the heat collected is radiated by air in the ventilation layer 11. That is, the heat collected at the high temperature on the heat collecting surface 22 is transferred to the back surface of the solar heat collecting plate 21, that is, the heat generating surface 23, and finally, the heat transfer layer 11. In general, the heat collecting surface is a heat generating surface in the solar heat collecting plate, but in the solar heat collecting unit 20 and the ventilation system 100 according to the present invention due to the cover member 24 and the air layer 29 which will be described later The collecting surface and the heating surface are separated.

The cover member 24 covers the heat collecting surface 22 of the solar heat collecting plate 21 so that the heat collecting surface 22 does not come into contact with the air in the ventilation layer 11. When the outside cold air flows into the ventilation layer 11, the collecting surface 22 is cooled by the introduced air, so that the cover member 24 has the collecting surface 22 having air in the ventilation layer 11. Covering it so that it is not in contact with it, the collection surface 22 is heated to a sufficient high temperature of the desired degree. In addition, the cover member 24 is preferably formed of a transparent material such as glass or an acrylic plate so that sunlight can pass through. Thus, the cover member 24 covers the collection surface 22, so that a certain space is formed between the cover member 24 and the collection surface 22, and since the space is sealed, the air present in the space The airtight air layer 29 may be formed without being leaked out. Since the sealed air layer 29 is not in contact with the air in the vent layer 11 and is heated by the sun and the heat collecting surface 22, it maintains a considerably high temperature compared with the air in the vent layer 11. Accordingly, the heat collected at the heat collecting surface 22 of the solar heat collecting plate 21 is transferred to the ventilation layer 11 which is maintained at a relatively low temperature. That is, the heat is transferred from the heat collecting surface 22, which is the front surface of the solar heat collecting plate 21, to the heat generating surface 23, which is the rear surface, and finally transferred to the air in the air vent layer 11, thereby transferring the air in the air vent layer 11. Heating.

In addition, the ventilation system 100 according to the present invention is provided with a heating means. This heating means is for heating the air in the ventilation layer 11 at night time when the solar radiation amount is insufficient. A separate heater may be used as the heating means, but the present embodiment uses the heating water pipe 31 that is already installed in the house. Korean houses generally use ondol, and in the ondol system, the heating water pipe 31 is disposed in a zigzag shape and buried above the slab floor. The heating water is circulated through the heating water pipe 31 to heat the floor. In the ventilation system 100 according to the present invention, the heating water pipe 31 is arranged to pass through the lower part of the case 10 so that the heating water pipe 31 heats the air in the ventilation layer 11. Done. In order to improve heating efficiency, it is preferable to form a plurality of heat dissipation fins 32 in a portion of the heating water pipe 31 passing through the case 10.

Hereinafter, a use example of the ventilation system 100 according to the present invention will be described in detail.

The ventilation system 100 having the above-described configuration is disposed in close proximity to the outer wall of the building, and the heating water pipe 31 embedded in the building passes through the lower part of the case 10. The injection port 13 and the exhaust port 14 are in communication with the indoor space to be heated and ventilated by the pipe (p). If the indoor space is divided into several parts, spaces separated by ducts or the like may be connected.

Thus, when the ventilation system 100 according to the present invention is installed, the solar heat collecting unit 20 collects solar heat. The heat collecting surface 22 of the solar heat collecting plate 21 is raised to a high temperature, and this heat is transferred to the air in the ventilation layer 11 through the heat generating surface 23. Outside fresh air introduced through the inlet 12 formed in the lower part of the case 10 is heated by the heat generating surface 23 of the solar heat collecting plate 21 is raised to the top of the case 10. The elevated air is introduced into the indoor space through the inlet 13.

In the conventional solar ventilation system, the collecting surface is cooled by the air in the ventilation layer, and the collecting surface is not sufficiently high. As a result, the air in the ventilation layer does not obtain sufficient buoyancy and the amount of air injected into the indoor space is insufficient. However, in the ventilation system 100 according to the present invention, the cover member 24 and the closed air layer 29 are formed so that the collection surface 22 does not cool, and thus the temperature of the collection surface 22 is sufficiently high. In this way, the high temperature heat is transferred to the air in the ventilating layer 11, so that the air can obtain a sufficient buoyancy, thereby increasing the amount of air injected into the indoor space.

In this case, when the outside air is to be supplied and supplied to the indoor space, the exhaust port 14 and the discharge port 15 of the case 10 are closed by a third stopper (not shown) and a fourth stopper (not shown), respectively. Let it be.

On the contrary, the case where the air in the indoor space is to be discharged to the outside for ventilation will be described. The air in the indoor space flows into the ventilation layer 11 of the case 10 through the exhaust port 14, and the air heated by the solar heat collecting unit 20 rises to discharge the outlet 15 of the case 10. Is discharged to the outside through. When the indoor air is to be discharged to the outside, only the exhaust port 14 and the outlet port 15 are opened, and the inlet port 12 and the inlet port 13 are respectively the first plug (not shown) and the second plug (not shown). It is preferable to keep it closed.

On the other hand, when the amount of insolation is insufficient, the water in the ventilation layer 11 may be heated by circulating the heating water in the heating water pipe serving as the heating means. In the ventilation system 100 according to the present invention, there is an advantage in that facility costs are reduced and energy consumption is reduced by using a heating water pipe 31 that is generally installed in a house without using a separate heater as a heating means. have.

The effects of the ventilation system 100 according to the invention were tested and the data are shown in FIGS. 6 and 7.

Figure 6 is a photograph showing a test foreground, Figure 7 is a diagram showing the results of testing the heating performance of the ventilation system shown in Figure 4, Figure 8 is a test showing the ventilation and heating performance of the ventilation system shown in FIG. A chart showing the results.

In the test, the conventional ventilation system and the ventilation system 100 according to the present invention were modeled and installed and then compared with each other. That is, the conventional ventilation system is a system in which the collecting surface is exposed in the ventilation layer without the sealed air layer 29 and the cover member 24. In the system according to the present invention, the cover member 24 and the sealed air layer 29 are removed. Formed. However, the heating means, ie, the heating water was not circulated through the heating water pipe 31, but was simply heated using solar heat.

The experiment was conducted from November 16 to January 17 in the winter of 2004. During this period, the average weekly temperature ranged from 4 ℃ to 11 ℃.

In the graph of FIG. 7, the horizontal axis shows time. That is, the experiment was conducted from 8 am to 5 pm. The left vertical axis shows the amount of insolation (unit: Kcal / hm ² , calories per square meter per hour), and the right vertical axis shows the temperature (unit: ℃). In the lower part of the graph, a change in the direct solar radiation amount d based on sunny days over time and the perforated solar radiation amount f on the basis of shades is shown in a bar graph. The graph also shows the change in ambient temperature (o), the change in temperature of the collecting surface in the conventional ventilation system (k), and the change in temperature of the collecting surface 22 of the ventilation system 100 according to the invention (c). Is shown. Referring to Figure 7, it can be seen that the temperature of the collecting surface of the ventilation system according to the present invention is formed on average 5 ℃ ~ 7 ℃ higher than the temperature of the collecting surface of the conventional ventilation system. That is, since the heat collecting surface 22 is not cooled due to the cover member 24 and the sealed air layer 29, the temperature of the heat collecting surface is higher than that of the conventional ventilation system.

In the graph of FIG. 8, the horizontal axis represents time. That is, the experiment was conducted from 8 am to 5 pm. The left vertical axis shows temperature (° C) and the right vertical axis shows wind speed (m / s). The lower part of the graph shows the change in the wind speed (s) when the air in the ventilation layer is introduced into the indoor space in the conventional ventilation system and the air in the ventilation layer 11 in the ventilation system 100 according to the present invention. The change in wind speed v as it flows in is shown. In addition, the upper side of the graph is a change in the outside air temperature (o), the temperature of the air flowing into the indoor space in the conventional ventilation system (y) and the indoor space through the inlet 13 in the ventilation system 100 according to the present invention The change in temperature (x) of the air flowing into is shown. Referring to FIG. 8, it can be seen that both the temperature (x) and the wind speed (v) of the air flowing into the indoor space are higher in the ventilation system 100 according to the present invention than in the conventional ventilation system. High wind speed means that the outside fresh air can be introduced into the indoor space in a large amount, so it can be seen that efficient ventilation is achieved as compared with the conventional ventilation system. In addition, the temperature (x) of the air flowing into the indoor space in the ventilation system 100 according to the present invention is higher than that of the conventional ventilation system is that the heating is made more efficient than the conventional.

Judging from the test results shown in FIGS. 7 and 8, the heat collecting surface 22 is formed at a high temperature by sealing an upper portion of the heat collecting surface 22 of the solar heat collecting plate with the cover member 24 and providing a sealed air layer 29. As a result, it can be seen that the heat of high temperature causes the air in the ventilation layer to be heated to a high temperature, thereby increasing the lift force of the air and increasing the wind speed. That is, it can be confirmed that heating and ventilation are performed more efficiently than in the conventional system.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

As described above, the solar heat collecting unit and the ventilation system using the same according to the present invention can reduce energy consumption by using solar heat, and the amount of air and the amount of air introduced into the room compared to the conventional solar ventilation and heating system. The temperature can be increased, which is an advantage of being efficient.

In addition, even when the amount of insolation is insufficient, there is an advantage that energy consumption can be reduced by using a heating water pipe installed in a house without using a separate heater.

Claims (8)

delete As a ventilation system for ventilating the interior by sucking and heating the outside air and supplying it to the interior space, A ventilation layer through which air can flow, an inlet for interconnecting the ventilation layer with the outside so that outside air can flow into the ventilation layer, and an interior space and a ventilation layer so that air from the ventilation layer can be injected into the interior space. A case having an injection hole for connecting and formed of a transparent material to allow sunlight to pass therethrough; And It is disposed in the plurality of ventilation layers formed in the inside of the case, each of which is a heat collecting surface capable of collecting solar heat and a heat generating surface for radiating the heat collected by the air in the ventilation layer is formed on the front and back, respectively A heat collecting unit having a heat collecting plate, a cover member formed of a transparent material to allow sunlight to pass through and covering the heat collecting surface of the solar heat collecting plate, and a sealed air layer sealed between the heat collecting surface and the cover member of the solar heat collecting plate; Equipped, The air in the ventilation layer is heated by the heat generating surface of the solar heat collecting plate. The method of claim 2, The inlet is disposed in the lower portion of the case, the inlet is a ventilation system, characterized in that disposed on the upper portion of the case. The method of claim 2, The lower part of the case is provided with an exhaust port connecting the ventilation layer and the indoor space so that the air in the indoor space is exhausted to the ventilation layer, Ventilation system, characterized in that the upper portion of the case is provided with an outlet for connecting the ventilation layer and the outside so that the air exhausted to the interior space to the outside. The method of claim 4, wherein A first stopper for selectively opening and closing the inlet, A second stopper for selectively opening and closing the inlet, A third stopper for selectively opening and closing the exhaust opening and the selectively opening and closing the outlet And a fourth stopper. The method of claim 2, The case further comprises a heating means for heating the air in the ventilation layer. The method of claim 6, The heating means, Is a heating water pipe buried in the floor of the indoor space, And the heating water pipe is arranged to pass through the ventilation layer of the case from the bottom of the indoor space. The method of claim 7, wherein Ventilation system, characterized in that a portion of the heating water pipe passing through the ventilation layer of the case is provided with a plurality of heat radiation fins.

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