JP2000304360A - Fluid temperature-raising device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid temperature-raising device for obtaining a high- temperature fluid. SOLUTION: When a fluid temperature-raising device 10 of, for example, a warm air-generating device is to be composed, a surface side channel 50 is formed between a heat exchange member 21 for absorbing the heat of light K such as solar light and a surface member 30 with heat transmission property, and at the same time a rear surface side channel 5 is formed between the heat exchange member 21 and a rear surface member 40, a first connection path 52 for feeding fluid from the surface side channel 50 to a rear surface side channel 51 and a second connection path 53 for feeding it from the rear surface side channel 51 to the surface side channel 50 are provided at the heat exchange member 21, thus exchanging heat between the fluid and the heat exchange member 21 every time when the fluid passes the connection paths 52 and 53 and hence exchanging heat for a plurality of times for the same fluid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid heating apparatus for applying heat to a fluid such as air or water to perform a heating process, and to a space for air conditioning provided in various structures such as buildings. The present invention can be used for a warm air generator that generates or supplements warm air used as air-conditioning air to be supplied, or a warm water generator that generates or supplements warm water used in a bath or a hot water supply facility.

[0002]

2. Description of the Related Art Conventionally, various structures such as buildings are provided with various air-conditioning systems for heating, ventilating, and the like, and thereby air-conditioning of a space to be air-conditioned provided in the structures is performed.

In recent years, with the diversification of customer needs for houses and the like, along with changes in lifestyles and demands for energy savings, the functions required of such air conditioning systems have been diversified and advanced. There is a tendency.

For example, when the occupancy rate of the house is higher in the night than in the day, such as when the resident returns home at night, the heat obtained during the day is stored in the foundation concrete or the like. If it can be prepared at night, it is possible to contribute to energy saving, and it is also possible to reduce the utility cost required for heating. For such heat storage, it is generally more advantageous to send a small amount of high-temperature air than to send a large amount of low-temperature air.

[0005]

However, the existing air-conditioning system does not sufficiently respond to the diversification of customer needs, including the cost of equipment and energy saving. That is, an air conditioning system having various functions such as heating, cooling, dehumidification, humidification, ventilation, and the like has conventionally existed, and some air conditioning systems can exhibit high functions for each function. However, air-conditioning systems that can exhibit high performance usually consume a large amount of power, are often unfavorable from the viewpoint of energy saving, and have high equipment costs.
There is a problem that the device configuration is often complicated.

[0006] In addition, if a system using natural energy such as a solar cell is constructed, it is preferable in terms of energy saving even if it is limited to generating warm air and performing heating or the like. It may be insufficient. In other words, such a system that is preferable in terms of energy saving generally has a problem in that the use of the obtained air is restricted because a large amount of low-temperature air is generally obtained in many cases. For example, when trying to store heat in preparation for nighttime heating using warm air generated during the day,
As mentioned above, it is advantageous to send a small amount of high-temperature air rather than a large amount of low-temperature air, so the warm air obtained by such a system is not suitable for heat storage. Become.

Therefore, it has been desired to develop a device capable of obtaining high-temperature warm air suitable for heat storage and the like. It is convenient if a device capable of obtaining a higher temperature fluid can be developed.

An object of the present invention is to provide a fluid temperature raising device capable of obtaining a fluid having a high temperature.

[0009]

SUMMARY OF THE INVENTION The present invention achieves the above object by performing heat exchange between a fluid and a heat exchange member a plurality of times.

Specifically, the fluid temperature raising device of the present invention is a heat exchange member that receives light, absorbs the heat of the light, and performs heat exchange with the surrounding fluid to give heat to the fluid; A heat-transmissive surface member disposed on the light receiving portion side of the heat exchange member at a distance from the heat exchange member, and a heat exchange member disposed on the light exchange portion of the heat exchange member on a side opposite to the light receiving portion. Back member, a front-side flow path formed between the heat exchange member and the surface member, and a back-side flow path formed between the heat exchange member and the back member. At least one first series passage for sending fluid from the front side flow path to the back side flow path is provided, and at least a second communication path for sending fluid from the back side flow path to the front side flow path is provided. It is characterized in that one is provided.

Here, the "fluid" to be heated is:
It contains gas such as air and liquid such as water. Therefore,
The fluid warming device of the present invention can be applied as a warm air generating device if the object to be heated is a gas such as air, and can be applied as a hot water generating device if the object to be heated is water. it can.

The "light" received by the heat exchanging member for absorbing heat includes not only sunlight but also various lighting lights such as indoor lights (for example, fluorescent lights) and outside lights.

Further, the heat exchanging member is formed to a certain extent, such as a set of a plurality of plate-like members which are divided and arranged side by side like a blind or a louver type structure, or a heat collecting panel for absorbing solar heat (so-called solar panel). A plate member or the like which is continuous with a large area is typical, but is not limited to such a plate member, and may be a lump member, or may be a hollow member or a solid member. In short, any shape or structure that can secure a surface that receives light and absorbs the heat of the light may be used.

The material of the heat exchange member is not limited as long as it can absorb the heat of light. However, from the viewpoints of high heat absorption and ease of handling, a light metal such as aluminum or an alloy thereof is used. Is preferred.

The material of the surface member is not particularly limited as long as it has heat permeability, such as glass and acrylic.

Further, it is preferable that the material of the back member has a heat insulating property in order to prevent the heat applied to the fluid from escaping. For example, the back member can be configured using an inorganic fiber material such as glass wool or rock wool, a foamed plastic material such as polystyrene foam or urethane foam, or a heat insulating material such as wood fiber material.
Note that the back member may be the outer wall surface itself or the roof surface itself of various structures such as buildings.

The first communication passage and the second communication passage may be a large number of through holes formed in a continuous plate-like member such as a heat collecting panel for absorbing solar heat, or a blind or louver type structure. It may be a gap or the like between the plate-like members divided and arranged side by side as described above.

In the present invention, when the fluid passes through the first series of passages provided in the heat exchange member and is sent from the front side flow path to the back side flow path, the fluid and the heat exchange member are separated from each other. Heat exchange takes place between the two. On the other hand, even when the fluid passes through the second communication path provided in the heat exchange member and is sent from the back channel to the front channel, heat is exchanged between the fluid and the heat exchange member. . Then, the heat exchange by passing through the first communication passage and the second communication passage is performed at least once each, that is, twice or more in total.

Therefore, the same fluid passes through the heat exchange member a plurality of times, and heat exchange is performed each time. For this reason, it is possible to obtain a fluid at a higher temperature than in the case of only one-time heat exchange as in the related art, and to solve the inconvenience of restricting the use of the fluid after the heat exchange. Is achieved.

Further, as a more specific example of the present invention, in the above-described fluid heating device, a state in which at least one of the front side flow path and the back side flow path prevents the flow of the fluid in the direction along the heat exchange member. A partition member that is arranged in the front side flow path or the rear side flow path and partitions the heat exchange member is provided, and the heat exchange member partitioned by the partition member sandwiches the partition position by the partition member. The first series passage is provided in the section on the side, and the second communication path is provided in the section on the other side.

[0021] In the case where such a partition member is provided, the fluid in the front-side flow path, the flow of which is blocked by the partition member, passes through the first series of passages to exchange heat with the heat exchange member. After that, the flow reaches the back side flow path, then passes through the second communication path to perform heat exchange with the heat exchange member, and then the front side flow path (the side opposite to the first side across the partition member) ).
Further, the fluid in the back flow path, the flow of which is blocked by the partition member, passes through the second communication path and exchanges heat with the heat exchange member, reaches the front flow path, and then reaches the first series. After passing through the passage and exchanging heat with the heat exchange member, the flow returns to the back flow path (the side opposite to the first side across the partition member). Therefore, in any case, the heat exchange is performed a plurality of times for the same fluid.

Further, in the configuration having such a partition member, particularly when heat exchange is performed three or more times, the following configuration can be adopted. That is, the partition member is provided at least one each in the front side flow path and the back side flow path, these partition members are alternately arranged in each side flow path by shifting the position in the direction along the heat exchange member, It is possible to adopt a configuration in which one of the first series passage and the second communication passage is alternately provided in each section of the heat exchange member divided by these partition members for each section.

Here, in a state where the partition members are alternately arranged in the respective side flow paths while being shifted in the direction along the heat exchange member, one partition member is provided for each of the front side flow path and the rear side flow path. , A total of two, and a state in which they are staggered and staggered. Therefore, the “alternate arrangement” here includes, for example, the case of FIG. 5 described later.

When the partition members are alternately arranged in the front side flow path and the back side flow path as described above, the partition members are arranged in a zigzag manner in the direction along the heat exchange member. The flow path also becomes zigzag. For this reason,
The same fluid alternately passes through the first communication passage and the second communication passage to perform heat exchange, and reciprocates between the front side flow path and the back side flow path.

Therefore, a smooth fluid flow is formed, and a large number of heat exchanges can be secured. Also, the number of heat exchanges can be adjusted by changing the number of installed partition members. Further, the flow of the fluid into the device or the discharge from the device can be performed from either the front side flow path or the back side flow path by adjusting the arrangement of the partition member.

In the above-mentioned fluid temperature raising apparatus, a suction fan for sucking fluid into the front side flow path or the back side flow path is provided near the outlet of the front side flow path or the back side flow path. Is desirable.

In the case where such a suction fan is provided, a more smooth flow of the fluid is formed, and the temperature rise of the fluid can be performed without delay. When the number of the partition members is large, or even when the flow path is long, a smooth fluid flow can be formed, and the effect of the present invention can be sufficiently exerted. Become.

Further, as described above, the "fluid" to be subjected to the temperature raising treatment in the present invention is not limited to gas or liquid.
The purpose of use is not limited, but particularly, when the fluid in the present invention is air-conditioning air for supplying to a space to be air-conditioned, the effects of the present invention are more remarkably exhibited and are preferable. .

The space to be air-conditioned includes various types of rooms and passages in ordinary buildings, halls, factories, warehouses, etc., subway station premises, underground shopping malls, tunnels, ship cabin, and the like. The space provided in the structure is included. In addition, the air for air conditioning to be supplied to the space to be air-conditioned may be the one that introduces outside air, or the air that has been taken in from the space to be air-conditioned is returned to the space to be air-conditioned after the temperature is increased. There may be.

In the case where the air-conditioning air is heated as described above, high-temperature air obtained by performing heat exchange a plurality of times can be supplied to the space to be air-conditioned.
The room can be heated.

If the space to be air-conditioned is a room or a corridor of a general house, heat storage may be required. In other words, in general houses, the utilization rate is higher in the night than in the day, such as when the resident returns home at night, but in such a case, the concrete ( If the heat can be stored for example, it is possible to use the heat gradually rising from under the floor at night. And
In performing such heat storage, it is more advantageous to send a small amount of high-temperature air than to send a large amount of low-temperature air. The effect will be further exhibited.

Further, in storing heat in such basic concrete, high-temperature air obtained by the apparatus of the present invention is supplied to a space to be air-conditioned, and heat is stored by transferring heat from the space to be air-conditioned. Alternatively, there may be provided a dedicated heat storage path for directly sending the high-temperature air obtained by the apparatus of the present invention to the underfloor space. In the case where a dedicated path for heat storage is provided as in the latter case, the high-temperature air obtained by the apparatus of the present invention is not used as “air-conditioning air for supplying to the air-conditioned space”. It becomes exclusive air,
Naturally, even this case is included in the scope of the present invention. In addition, when heat storage is desired, high-temperature air obtained by the apparatus of the present invention is sent to the underfloor space, while when air conditioning is performed, the air is sent to the air-conditioned space. You may take it.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a vertical cross-sectional view of a warm air generating device 10 which is a fluid temperature raising device of the present embodiment and a building 1 in which the device is installed. FIG. 2 is an overall perspective view of the warm-air generator 10, and FIG. 3 is an enlarged cross-sectional view of a main part of the warm-air generator 10. In FIG. 1, the warm air generator 10 is exaggerated and exaggerated compared to the building 1 for convenience of describing the entire air conditioning system including the warm air generator 10.

In FIG. 1, a building 1 is a general house built on a solid foundation 2 made of concrete. Inside the building 1, an air-conditioned space 3 to be air-conditioned by using the warm air generating device 10, a space 5 above the ceiling 4 of the air-conditioned space 3, and a floor 6 of the air-conditioned space 3. Is formed below the floor space 7.

Outside the building 1, there is provided a warm air generator 10 for generating warm air to be sent to the air conditioned space 3 in the building 1 as air for air conditioning. The installation position of the warm air generation device 10 is arbitrary as long as it is a position where the sunlight shines. For example, the warm air generation device 10 may be arranged along the outer wall surface of the building 1.
May be arranged on the roof, or may be installed at a place away from the building 1. However, from the viewpoint of avoiding the heat of the generated warm air and preventing the equipment from becoming complicated, it is preferable to install the device near the building 1.

In FIG. 1 and FIG.
0 has a substantially rectangular parallelepiped box-like shape, and is disposed on one side of the heat exchange unit 20 so as to surround the heat exchange unit 20 disposed in the center of the inside and the heat exchange unit 20. It comprises a front cover 30 which is a front member and a rear cover 40 which is a rear member disposed on the other side.

In FIG. 1 to FIG.
Has a function of receiving sunlight K and absorbing the heat, and performing heat exchange with the surrounding air to impart heat to the surrounding air. This heat exchange unit 20
Is provided with a blind type structure, a heat exchange panel 21 which is a plurality of aluminum heat exchange members arranged vertically, a metal seat plate 22 arranged at the lowermost end, Each of the heat exchange panels 21 and the seat plate 22 are connected to each other, and metal wires 23, 24, and 25 for adjusting the inclination angle of each heat exchange panel 21 are provided.

2 and 3, both ends of each heat exchange panel 21 in the longitudinal direction (perpendicular to the plane of FIG. 3) are provided.
Elongated through holes 26 are formed in a direction orthogonal to the longitudinal direction of each heat exchange panel 21, and the wires 23 connected to the seat plate 22 pass through these through holes 26. And
When the wire 23 is moved up and down, the seat plate 22
Moves up and down, and the heat exchange unit 20 expands and contracts as a whole. In addition, the operation of moving the wire 23 up and down,
That is, the operation of expanding and contracting the entire heat exchange unit 20 may be performed manually, or may be performed using a driving unit such as an electric motor or a cylinder device. The remote control may be made possible by using.

Further, as shown in FIG. 3, both ends of each heat exchange panel 21 in the longitudinal direction are supported by wires 25 laid over wires 24 arranged on both left and right sides in FIG. Each heat exchange panel 21 can maintain a fixed inclination posture. When the wires 24 arranged on the left and right sides are relatively moved in the vertical direction, the inclination of each wire 25 changes, whereby the inclination angle of each heat exchange panel 21 is adjusted.
Therefore, like the general blind, each heat exchange panel 21 can take not only the inclined posture shown in FIG. 3 but also the inclined posture turned upside down.
The operation of moving the wires 24 on the left and right sides relatively up and down, that is, the operation of adjusting the inclination angle of each heat exchange panel 21 may be performed manually or by using a driving means such as an electric motor or a cylinder device. The remote control may be performed by using the latter driving means.

In FIG. 3, on the left surface of each heat exchange panel 21, every other, that is, alternately, a black paint 27 for enhancing the solar heat absorbing effect, and a function of cleaning the surrounding air. A paint 28 as a cleaning medium is applied. Further, on the right surface of each heat exchange panel 21, the former paint 2
7 is applied.

Accordingly, when only the left surface of each heat exchange panel 21 is captured (when the sunlight K is applied to the left surface in the posture of FIG. 3), the former paint 27 is applied. The heat exchange panel 21 is a dedicated panel for a warm air generation process that receives the sunlight K, absorbs the heat, and performs heat exchange with the surrounding air to apply heat to the surrounding air. Heat exchange panel 2 coated with
Reference numeral 1 denotes a panel for both the warm air generation process and the cleaning process that simultaneously performs the above-described heat exchange and also performs the cleaning process of the surrounding air. However, depending on the type (especially color) of the paint 28, the heat exchange panel 21 to which the paint 28 is applied does not exert much of the warm air generation processing function, and the panel mainly performs the cleaning processing function. Sometimes.

When only the right surface of each heat exchange panel 21 is captured (when the posture of FIG. 3 is inverted and sunlight K is applied to the right surface before the inversion), all the heat exchanges are performed. The panel 21 is a dedicated panel for the warm air generation processing.

The latter paint 28 is a paint containing titanium oxide which undergoes a photocatalytic reaction upon receiving ultraviolet rays, and has a so-called photocatalytic function. Here, the photocatalytic function means that when light is applied to titanium oxide, active oxygen is generated, and this active oxygen decomposes odors, bacteria, toxic gases, and the like.

In FIG. 1 and FIG.
Is made of a transparent acrylic plate and has heat permeability. The front cover 30 is disposed on the light receiving unit side (the left side in FIG. 1) of the heat exchange unit 20, and includes a parallel portion 31 disposed in parallel with the heat exchange unit 20 at a predetermined interval. An upper surface portion 32 perpendicular to the parallel portion 31
And the lower surface 33 and the left and right side surfaces 34 are integrally formed.

The back cover 40 is made of a wooden plate.
Has heat insulation. The rear cover 40 is disposed on the opposite side (the right side in FIG. 1) of the light receiving unit of the heat exchange unit 20, and has a parallel portion 41 disposed in parallel with the heat exchange unit 20 at a predetermined interval. And an upper surface portion 42 and a lower surface portion 43 which form a right angle with the parallel portion 41, and a side surface portion 44 on both the left and right sides.

The front cover 30 and the rear cover 40
Is integrated by bonding with an adhesive or screwing or the like. The front cover 30 may have a fitting-type structure so that the front cover 30 can be separated from the rear cover 40.

Further, on the upper surface portion 42 of the rear cover 40,
A storage unit 45 for storing the heat exchange unit 20 in a folded state is provided. The storage unit 45 is provided with a lid 46, and the heat exchange unit 20 folded and stored in the storage unit 45 can be removed to the outside by opening the lid 46.

Between the heat exchange unit 20 and the front cover 30, a front-side flow path 50 for circulating air introduced into the apparatus is formed.
A back-side flow path 51 for flowing air introduced into the inside of the apparatus is formed between the back cover 40 and the rear cover 40.

As shown in FIG. 1, the front-side flow path 50
One plate-like partition member 6 which is arranged in a direction (horizontal direction) orthogonal to the heat exchange unit 20 and partitions the front-side flow path 50
0 is provided. The partition member 60 is made of a transparent acrylic plate material similarly to the front cover 30, and is fixed to and integrated with the front cover 30.

The rear flow path 51 is provided with two plate-like partition members 61 and 62 which are arranged in a direction orthogonal to the heat exchange unit 20 and partition the rear flow path 51 at intervals. ing. These partition members 61 and 62 are made of a wooden plate like the rear cover 40, and
It is fixed to and integrated.

Then, these three partition members 60, 6
The reference numerals 1 and 62 are arranged so as to be shifted from each other in the direction along the heat exchange unit 20, and are alternately arranged in the front side flow path 50 and the back side flow path 51, forming a staggered arrangement.

The partition members 60, 61, 62
The heat exchange unit 20 (the seat plate 2
2 is in contact with the lower surface 43 of the back cover 40) is divided into four upper and lower parts.

Among these, the uppermost section, that is, the upper section of the arrangement position of the partition member 61, and the third section from the top, that is, the position between the arrangement position of the partition member 60 and the arrangement position of the partition member 62. In the section, a first series passage 52 for sending air introduced into the inside of the apparatus from the front side flow path 50 to the back side flow path 51 is provided in each of the inclined heat exchange panels 2.
It is formed in the gap between one. On the other hand, the second section from the top, that is, the arrangement position of the partition member 61 and the partition member 6
0, and the lowermost section,
That is, the second communication passage 53 for sending the air introduced into the apparatus from the rear flow path 51 to the front flow path 50 is provided in the lower section of the partition member 62 at the inclined position. It is formed in a gap between the heat exchange panels 21. Therefore, the inside of the warm air generator 10 is indicated by the arrow A1 in FIG.
As shown in A8, a zigzag-shaped flow path extending across both sides of the heat exchange unit 20 is formed.

In FIG. 1 and FIG.
In the lower part of the parallel part 41, an inlet 70 for introducing air into the inside of the apparatus is formed, while on the upper part of the parallel part 41, the warm air generated by the warm air generator 10 is discharged to the outside of the apparatus. Outlet 71 is formed.

The ceiling 70 of the space 3 to be air-conditioned is
An inlet duct 73 for sucking air in the air-conditioned space 3 from an air inlet 72 provided in the air-conditioning apparatus 3 and sending the air into the warm air generator 10 is provided. On the other hand, the warm air generated by the warm air generating device 10 is
A discharge duct 75 for blowing out air from an air outlet 74 provided on the ceiling 4 of the air conditioner and supplying the air to the air-conditioned space 3 is installed.

A switching valve 76 is provided in the introduction duct 73 so that outside air can be introduced. On the other hand, in the middle of the discharge duct 75, the switching valve 7
7 is provided so that discharge to the outside can be performed. Further, a switching valve 78 is provided in the middle of the discharge duct 75, and the warm air generated by the warm air generating device 10 is discharged from a discharge port 79 provided facing the underfloor space 7 and supplied to the underfloor space 7. It is also possible.

In the middle of the discharge duct 75 and near the discharge port 71, a suction fan 80 for sucking air into a zigzag flow path formed inside the warm air generator 10 is provided. Have been.

In this embodiment, the warm air generating device 10 performs the warm air generating process and the air cleaning process as follows.

First, the heat exchange unit 20 is in a completely expanded state, that is, the seat plate 22 is
3 is kept in contact. In addition, each heat exchange panel 2
As shown in FIG. 3, the attitude of 1 is such that sunlight K is applied to both the heat exchange panel 21 to which the paint 27 is applied and the heat exchange panel 21 to which the paint 28 is applied.

Then, the suction fan 80 is rotated to suck air in the air-conditioned space 3 from the suction port 72, and the air is introduced into the warm air generator 10 from the introduction port 70 through the introduction duct 73. Alternatively, the switching valve 76 may be switched to introduce outside air into the warm air generator 10.

Next, the air introduced into the warm air generator 10 first passes through the back side flow path 51 (arrow A in FIG. 1).
1) After passing through the second communication passage 53 formed in the gap between the heat exchange panels 21, the heat exchange panel 21 reaches the front-side flow path 50 (arrow A2). At the time of passing through the second communication passage 53, heat is exchanged between each heat exchange panel 21 and the air, and the heat exchange panel 21 storing the heat absorbed from the sunlight K transfers the heat to the air. Granted.

Subsequently, the air (arrow A3) reaching the front side flow path 50 passes through the first series path 52 formed in the gap between the heat exchange panels 21 and then to the rear side flow path. It reaches 51 (arrow A4). Also at the time of passing through the first series passage 52, heat exchange is performed between each heat exchange panel 21 and air, and the heat exchange panel 2 storing heat absorbed from the sunlight K.
From 1, the heat is applied to the air.

Similarly, the air (arrow A5) reaching the back side flow path 51 passes through the second communication path 53 and reaches the front side flow path 50 (arrow A6). Is performed, and then the air (arrow A)
7) passes through the first series passage 52 to reach the back side flow path 51 (arrow A8), and at this time, heat exchange is performed.

Therefore, the air introduced into the warm air generator 10 flows through the zigzag flow path (arrows A1 to A1).
In A8), the gas passes through the first communication passage 52 and the second communication passage 53 twice each, and finally, a total of four heat exchanges are performed, thereby generating high-temperature warm air.

Further, in parallel with such warm air generation processing, air cleaning processing is also performed at the same time. That is, while the air flows through the zigzag flow path (arrows A1 to A8).
Then, it contacts the paint 28 having a photocatalytic function applied to the surface of each heat exchange panel 21 a plurality of times. At this time, the paint 28
Is irradiated with the sunlight K, so that a photocatalytic action is generated, thereby performing a cleaning process such as sterilization and deodorization of air.

Thereafter, the air which has been subjected to the warm air generating process and the air cleaning process by the warm air generating device 10 is discharged from the outlet 71 to the outside of the device, and discharged through the discharge duct 75 to the outlet 7.
The air is blown out from the space 4 and supplied to the air-conditioned space 3.

When it is not necessary to perform the air cleaning process, or when it is desired to increase the capability of the warm air generation process to obtain a higher temperature warm air, the wire 24 is operated to operate the respective heat exchange panels 21 at different positions. 3 is turned upside down, and the black paint 2 is applied to all the heat exchange panels 21.
7 is irradiated with sunlight K. By doing so, the paint K having the photocatalytic function is also irradiated with the sunlight K,
The reason why a higher temperature warm air can be obtained is that, when the paint 28 having a photocatalytic function is applied, the heat absorption performance of the heat exchange panel 21 generally slightly decreases, but the decrease is eliminated.

Further, in order to maintain the air cleaning function exhibited by the coating material 28 having a photocatalytic function, the heat exchange unit 20 is periodically removed from the apparatus, for example, once every three months, and washed with water. Is preferably performed.

Further, when it is not necessary to supply warm air into the air-conditioned space 3, for example, in summer or when there is no occupant in the air-conditioned space 3, ultraviolet rays are applied to the paint 28 having a photocatalytic function. If it is irradiated, the air purifying function is exerted. Therefore, the switching valves 76 and 77 are switched to purify the air around the warm air generator 10, that is, the air outside the building 1, and to clean the environment. You may try to create it.

When it is desired to store heat during the daytime in preparation for the nighttime, the switching valve 78 is operated to switch the discharge port 7.
From 9, warm air may be supplied to the underfloor space 7, and heat may be actively stored by the solid foundation 2 made of concrete. It should be noted that a certain amount of heat can be stored by supplying warm air to the air-conditioned space 3 in the daytime instead of supplying warm air to the underfloor space 7 as described above.

According to this embodiment, the following effects can be obtained. That is, the first communication path 52 and the second communication path 53 are formed in the gaps between the heat exchange panels 21, and the zigzag flow paths are formed inside the warm air generator 10. Since the introduced air passes through the heat exchange unit 20 a plurality of times (four times in the present embodiment), the same air can be exchanged a plurality of times.

For this reason, it is possible to obtain warm air at a higher temperature than in the case of conventional one-time heat exchange, and it is also possible to eliminate the disadvantage that the use of the obtained warm air is restricted. For example, heating can be performed by the obtained warm air, and heat storage can be suitably performed.

The zigzag flow path is formed by the front side flow path 5.
It can be easily realized simply by arranging the partition members 60, 61, 62 in a staggered manner in the 0 and the rear side flow path 51. Therefore, by changing the number of such partition members to be installed, the number of heat exchanges is adjusted. Then, the temperature of the obtained warm air can be adjusted.

Further, since the suction fan 80 is provided, a smoother air flow can be formed, and the air temperature can be raised without delay. Then, even when the number of installed partition members is large as in the present embodiment, or even when the flow path is long, a smooth fluid flow can be formed, and the effect of the present invention can be sufficiently exhibited. be able to.

Further, since the heat exchange unit 20 has a blind structure, each heat exchange panel 21 can be used upside down. Therefore, paints 27 and 28 applied to the surface of each heat exchange panel 21 as in the present embodiment.
By making the arrangement status different between the front and back sides, it is possible to perform a desired process according to the situation, for example, giving priority to the warm air generation process or giving priority to the air purification process.

Further, since the switching valve 76 is provided, the air introduced into the warm air generator 10 can be taken in from the space 3 to be air-conditioned, and the outside air can be introduced. Further, since the switching valve 77 is provided, the air discharged from the warm air generator 10 can be supplied to the air-conditioned space 3 and can be exhausted to the outside.
Since the switching valve 78 is provided, the underfloor space 7
Since it is possible to directly supply warm air to the fuel cell, particularly efficient heat storage can be performed. Therefore, by these,
Various device controls can be performed according to the purpose.

Since all the flow paths inside the warm air generator 10 are covered with the front cover 30 and the rear cover 40, a smooth flow can be formed without being affected by wind, and the air and the heat exchange panel can be formed. The heat exchange with 21 is not hindered by the wind.

Further, since the heat exchange unit 20 has the heat exchange panel 21 to which the paint 28 having a photocatalytic function is applied, nitrogen oxide (NO _x ) is provided by the air cleaning function exhibited by the paint 28. Removal, sulfur oxide (SO _X ) removal, air purification, deodorization, antibacterial, antiviral, antifungal and other treatments can be performed.

Further, the device configuration for performing the heat exchange a plurality of times as described above, that is, the channel configuration formed in a zigzag shape is the device configuration for performing the air cleaning process with the paint 28 a plurality of times as it is. Therefore, the cleaning function of the apparatus can be improved by such a plurality of air cleaning processes.

The simple structure of applying the coating material 28 having a photocatalytic function to the surface of the heat exchange panel 21 enables the above-described air cleaning treatment to be performed. Even if it exceeds the range that can be removed, it can be dealt with without separately providing a special cleaning device.

Further, since the heat exchange unit 20 has the heat exchange panel 21 coated with the coating material 28 having a photocatalytic function, not only the air cleaning treatment as described above, but also the prevention of the heat exchange panel 21 itself. It can also perform the functions of soiling and self-cleaning. For example, oil and organic dirt adhering to the surface of the heat exchange panel 21 can be decomposed to make it difficult for dust and dirt to adhere.

Further, since the heat exchange unit 20 is detachable, the heat exchange unit 20 can be detached to perform washing such as washing with water, thereby maintaining the air cleaning function exhibited by the paint 28 having a photocatalytic function. Can be.

Further, since the warm air generating device 10 performs the warm air generating process and the air cleaning process using the solar heat,
Since the generation of CO ₂ can be suppressed, it is useful for preventing global warming, becomes an environmentally preferable device, and meets the demands of the times.

Further, since the warm air generator 10 is configured to receive the sunlight K by means of the heat exchange panel 21 as a plate-like body, it can absorb solar heat because it can have a simple structure and a sufficient light receiving area. In addition, since a sufficient contact area with air can be ensured, it is possible to realize an apparatus that is optimal for exerting an air cleaning function. And since it is a plate-shaped body, the weight and size of the device can be reduced.

Further, paint 2 exhibiting an air purifying function
8 is simply applied to the surface of the heat exchange panel 21 having a warm air generating function, thereby easily realizing an apparatus capable of simultaneously performing both the warm air generating process and the air cleaning process.
Manufacturing can also be easily performed.

Even when the air cleaning function of the paint 28 has deteriorated or the paint 28 has peeled off, it can be easily returned to the initial state by applying the paint again. A device that does not require much time can be realized.

Note that the present invention is not limited to the above-described embodiment, and modifications and the like within a range that can achieve the object of the present invention are included in the present invention.

That is, in the above-described embodiment, three partition members 60, 61, and 62 are provided inside the warm air generating device 10, and the air passes through the heat exchange unit 20 four times and exchanges heat four times. However, the number of installed partition members and the number of heat exchanges are not limited to these numbers, and at least one partition member is provided in the front side flow path or the back side flow path. The number of heat exchanges may be two or more.

For example, one partition member 102 may be provided in the back side flow path 101 as in the warm air generator 100 in FIG. Even in this case, the heat exchange member 1
03, the air is moved from the front side flow path 104 to the rear side flow path 101.
Series passage 105 for sending to the rear side, and the back side flow path 10
The second communication path 106 for sending from 1 to the front side flow path 104
Is formed, the air passes through the heat exchange member 103 twice, and high-temperature warm air can be obtained.

Also, as in the warm air generator 200 of FIG. 5, one partition member 202 is provided in the front side flow path 201,
One partition member 204 is also provided in the back side channel 203, and the arrangement position of these partition members 202, 204 is shifted in the direction along the heat exchange member 205 so as to form a zigzag channel. Is also good. In this case, the air passes through the heat exchange member 205 three times, and heat exchange is performed three times, so that high-temperature warm air can be obtained.

Further, the heat exchange member of the present invention does not need to have a blind type structure capable of being housed, such as a plurality of heat exchange panels 21 constituting the heat exchange unit 20 of the above embodiment. It may have a structure such as a detachable shutter, or may be formed by a plurality of heat exchange panels fixed in an inclined state like the heat exchange member 103 in FIG. 4, or 5, a heat-collecting panel (for example, made of aluminum) having a relatively large area and having a large number of through-holes (for example, about 1.5 mm in diameter), not shown, such as the heat exchange member 205 in FIG. . However, when a paint having a photocatalytic function as in the above embodiment is applied, heat exchange is performed so that washing such as water washing can be performed to maintain the air cleaning function exhibited by the paint. Whether the member can be detached, or even if it cannot be removed, the heat exchange member can be washed by flowing washing water such as water inside the device as it is, or even when it rains It is preferable that rainwater naturally enters the inside of the apparatus and the heat exchange member is naturally washed.

In the above embodiment, the warm air generator 1
0, and an outlet 71 for discharging the warm air generated by the warm air generator 10 to the outside of the apparatus, are both provided on the parallel portion 41 of the rear cover 40, that is, on the rear side. Although the inlet port and the outlet port are provided facing the flow path 51, such inlets and discharge ports may be provided facing either the front-side flow path or the back-side flow path. And the installation positions of these inlets and outlets can be adjusted by changing the arrangement of the partition members.

Further, in the above embodiment, the suction fan 8
0 is provided near the discharge port 71,
It may be provided in the vicinity of 0 or in the middle of the flow path inside the apparatus. However, it is preferable to provide it in the vicinity of the outlet 71 as in the above-described embodiment, since the smoothest air flow can be formed.

In the above-described embodiment, the paint 28 having a photocatalytic function is applied to the heat exchange panel 21. However, such a paint having an air purifying function is not necessarily applied. If no air cleaning treatment is required, the coating may be omitted. However, it is preferable that the coating be performed, so that both the warm air generation processing and the air cleaning processing can be performed simultaneously.

[0095]

As described above, according to the present invention, the heat exchange member is provided with the first communication passage and the second communication passage, and each time the fluid passes through these communication passages, the fluid and the heat exchange member are provided. Since the heat exchange is performed between the first fluid and the second fluid, the heat exchange can be performed a plurality of times with respect to the same fluid, so that a high-temperature fluid can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a warm air generating device as a fluid temperature increasing device according to an embodiment of the present invention and a building in which the device is installed.

FIG. 2 is an overall perspective view showing the warm air generation device of the embodiment.

FIG. 3 is an enlarged cross-sectional view showing a main part of the warm air generation device of the embodiment.

FIG. 4 is a schematic sectional view showing a first modification of the present invention.

FIG. 5 is a schematic sectional view showing a second modified embodiment of the present invention.

[Explanation of symbols]

3 Space to be air-conditioned 10, 100, 200 Warm air generator which is a fluid heating device 21 Heat exchange panel which is a heat exchange member 30 Front cover which is a surface member 40 Rear cover which is a back member 50, 104, 201 Front side flow path 51, 101, 203 Back side flow path 52, 105 First communication path 53, 106 Second communication path 60, 61, 62, 102, 202, 204 Partition member 80 Suction fan 103, 205 Heat exchange member K Sun which is light light

Claims (5)

[Claims] 1. A heat exchange member that receives light, absorbs the heat of the light, and performs heat exchange with the surrounding fluid to give heat to the fluid, and the heat exchange member is provided on the light receiving portion side of the heat exchange member. A heat-transmissive surface member disposed at a distance from the exchange member; a back member disposed at a distance from the heat exchange member on a side opposite to a light receiving portion of the heat exchange member; And a front-side flow path formed between the surface member, and a back-side flow path formed between the heat exchange member and the back member. At least one first series passage for sending the fluid from the front side channel to the back side channel is provided, and a second communication passage for sending the fluid from the back side channel to the front side channel. Wherein at least one is provided. 2. The fluid temperature raising device according to claim 1, wherein at least one of the front-side flow path and the back-side flow path is in a state in which the flow of the fluid in a direction along the heat exchange member is obstructed. A partition member that is disposed to partition the front-side flow path or the rear-side flow path and partition the heat exchange member is provided, and the heat exchange member partitioned by the partition member has a partition position by the partition member. Wherein the first series passage is provided in a section on one side with the second communication path provided in a section on the other side. 3. The fluid temperature raising device according to claim 2, wherein the partition member is provided at least one for each of the front-side flow path and the rear-side flow path, and the partition members are provided for the heat exchange. The positions are shifted in the direction along the member and are alternately arranged in each side flow path, and each section of the heat exchange member partitioned by these partition members is alternately arranged in the unit of the partition in the first series passage or the section. A fluid temperature raising device, wherein one of the second communication passages is provided. 4. The fluid heating device according to claim 1, wherein the front side flow path or the back side flow path is provided near an outlet of the front side flow path or the back side flow path. Wherein a suction fan for sucking the fluid is provided inside the fluid heating device. 5. The fluid warming device according to claim 1, wherein the fluid is air-conditioning air to be supplied to a space to be air-conditioned.