JP3040340B2 - Pericover heating system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating system disposed on a side wall in a room, particularly on a window side wall, and more particularly to a convection / radiation pericover heating system.

[0002]

2. Description of the Related Art Various types of heating equipment have been disclosed in office buildings and the like in various places in order to heat a perimeter portion and an interior portion of a large room in a cold season as uniformly as possible. A particularly problematic point when heating the room when the outside air is in a cold state is a cold draft that flows down near the window glass in the room. This is because, when trying to heat the room, the temperature difference between the room air and the outside air causes the temperature of the air near the room's window glass to be transmitted from the window glass to the outside air. A temperature difference occurs between the air in the vicinity and the air in other parts.As a result, a specific gravity difference occurs in the air in the same room, and warm air that is far from the window rises to the ceiling, This is generated when the air near the cooled window glass descends from the ceiling toward the floor. For this reason, even if the interior part of the room away from the window glass is in an appropriate temperature state, the so-called perimeter part near the window glass is still cold due to cold draft due to cold draft, while the perimeter part is kept at the appropriate temperature. If it is attempted to maintain the temperature, the interior of the room far from the window glass may be too hot, and it is difficult to simultaneously maintain the entire room at the optimum temperature.

[0003] Various proposals have been published so far to solve such a problem. For example, FIG. 5 discloses a device that converts a cold draft into warm air and blows out the room (Japanese Utility Model Publication No. 7-4433). In this apparatus, a floor-mounted fan coil unit 3 is installed along a waist wall 2 below a window 1, and at least the width of the window 1 and a floor surface so as to cover the fan coil unit 3. A peri counter 4 is formed between the wall of the waist wall 2 and an inlet 6 for absorbing a cold draft 5 descending along the window 1 is provided in the peri counter 4. The draft 5 is supplied to the fan coil unit 3 and is passed through the heat exchanger 7.
Is a fan coil unit device that is blown out as warm air from the outlet 8 of the fan coil unit. In this fan coil unit device, a cold draft 5
Is forcibly sucked into the peri-counter 4 from the intake port 6 by the difference in specific gravity and the negative pressure in the peri-counter 4 generated by the operation of the fan coil unit 3, and then warmed by the heat exchanger 7. After being converted to air, the air is blown out from the outlet 8 as warm air toward the indoor ceiling.

[0004] Fig. 6 discloses an apparatus for preventing a cold draft from intruding into the center of a room (Japanese Utility Model Publication No. 7-33085). This device is used for indoor 1
A plurality of indoor heat exchangers 12 arranged side by side along the lower part of the side wall 11 of the zero, and a plurality of indoor heat exchangers 12 are provided along the side wall 11 so as to surround the upper and front outer sides of the plurality of indoor heat exchangers 12. The cold draft 14 from the upper suction port 13 and the room air 16 from the lower front suction port 15 are taken into the inside, and the cold draft 14 and the air 16 are passed through the heat exchangers 12 to perform the respective heat exchange. And a peri-counter 18 that blows out into the room 10 again from a plurality of outlets 17 formed corresponding to the vessel 12, wherein the suction port 13 is provided on the upper part of the peri-counter 18. Side wall 11 behind outlet 17
An indoor air-conditioning equipment 19 formed between the air outlets 17 at a position closer to the air outlet than at least the separation width of the air outlets 17 is disclosed. In this device, the cold draft 14 is formed by placing the suction port 13 on the upper side of the peri counter 18 near the side wall 11 behind the air outlet 17 and forming the cold draft 14 over substantially the entire width of the peri counter 18. The air is sucked into the peri-counter 18 from the suction port 13 without splashing on the upper surface.

[0005]

In each of these known methods, the cold draft is completely contained in the peri-counter before the cold draft flows down to the indoor floor, and then the cold draft is removed. Heat is exchanged in the peri-counter until the temperature reaches a predetermined warm temperature, and then the air at the predetermined temperature is released into the room. In other words, in order to prevent the problem caused by the cold draft, the solution has been heretofore achieved by exchanging heat with the cold draft and forcibly warming the entire room including the window surface.

However, in such a method, it is necessary to heat a window surface having a large heat transmission coefficient, and there is a problem that a significant energy loss is involved.

In addition, in an office building having a large space, it is required to heat the entire space as evenly and uniformly as possible.
Therefore, hitherto, the problem of cold draft in the perimeter portion has been dealt with by forced supply of warm air by a fan coil as shown in FIG. It responded by supplying hot air from the ceiling.

However, in a work space of a building called a modern intelligent building, a large amount of CPUs, personal computers, word processors, printers, and other various OA devices that generate heat themselves are installed in the interior part. For this reason, in such a space, if heating is provided to the interior part as before, the interior part will be overheated, resulting in an unfavorable working environment. For this reason, as shown in FIG. 8, today, forced air is supplied by a fan coil in a perimeter region, but cold air is forcibly supplied from a ceiling by an air conditioner in an interior portion. In this case, there were conflicting phenomena, such as heating on the one hand and cooling on the other.

When the cold draft is to be eliminated by the fan coil as shown in FIG. 8, warm air from the fan coil is forced to flow into the interior. For this reason, the temperature of the interior part distant from the vicinity of the window in the room further rises due to the air blown from the fan coil in addition to the heat from the OA equipment. As a result, the cold draft generated in the perimeter portion near the interior window is eliminated by heating with the fan coil, but in the interior portion, in addition to the cooling capacity for the internal load processing by the original OA equipment, Further cooling capacity is required to eliminate the hot air perimeter sent to the interior part by the fan coil. As a result, a problem of so-called mixing loss arises in that it is necessary to perform more useless cooling in the interior part, and there has been a great problem that it is far from the idea of energy saving.

[0010]

In order to solve the above-mentioned problems, in the present invention, a cold draft suction port 32 arranged in a horizontal direction for sucking a cold draft 30 is provided.
A first heater device 40 for heating the cold draft 30 to a predetermined temperature, a second heater device 42 for increasing the room temperature, and an air passage formed between these heater devices 40 and 42. Outlet 4 for discharging the natural draft 60 heated by the heater device 40 into the room
6 and the suction port 3 at the upper end face.
And a second heater device 42 on the front surface with
A first heater device 40 configured to heat the cold draft 30 to a predetermined temperature is disposed opposite to the ventilation path 44, and the first heater device 40 includes: When the cold draft 30 passes through the ventilation path 44, it has a convection heating medium 48 that exchanges heat with the cold draft up to a predetermined temperature, and the second heater device 42 that raises the indoor temperature is directed toward the room. A radiation heating medium 52 arranged in a
The heat-exchanged natural draft 60 is discharged into the room only due to the rising airflow of the heat-exchanged natural draft 60 and the pushing-up pressure of the cold draft 30 sucked from the suction port 32.

[0011]

FIG. 1 is a schematic view showing a vertical section at the center of a pericover heating device 20 according to an embodiment of the present invention. The peri-cover heating device 20 is covered by a peri-counter 24, which is preferably provided with a width substantially equal to the width of the window glass 22 in a lower portion of the window glass 22 disposed between the columns of the perimeter. Have been done. When the window glass 22 is narrower than the inter-column width of the perimeter, the peri-counter 24 does not necessarily need to be formed to have the same width as the window glass 22, but may be wider. However, conversely, if the width of the peri counter 24 is extremely narrower than the width of the window glass 22, there is a risk that a cold draft may be trapped and leaked. It is preferable to have the above width. Most preferably, the perimeter is shaped such that it is located between the posts or spans irrespective of the width of the window glass 22.

The top of the peri counter 24 is located slightly higher than the upper end of the waist wall 26 below the window glass 22, and the top of the peri counter 24 is located between the peri counter 24 and the window glass 22. An opening 28 having a predetermined thickness direction (a direction from the window surface toward the room) extending in parallel with the window glass at a predetermined distance from the window glass 22 is formed. The opening 28 provides a cold draft inlet facing upwardly of a suction port 32 for sucking the cold draft 30 descending into the room along the window glass 22 into the peri counter 24. Suction port 32
As can be seen from FIG. 1, a cold draft 30 descends parallel to the window glass 22 and then collides with the upper wall of the waist wall 26 to change its flow path at right angles toward the indoor side. It is arranged sideways so that most of can be sucked.

According to the experiments of the applicant, the thickness of the airflow forming the cold draft 30 is about 20 mm to 30 mm.
Therefore, the thickness of the opening 28 (the distance from the surface of the window glass 22 toward the room) and the dimension of the suction port 32 (the distance from the upper surface of the waist wall 26 to the upper surface of the peri counter 24) are at least 30 mm. preferable.

Inside the peri counter 24, a cable rack 34, a pull box 36, a temperature controller 38 and the like are accommodated. Furthermore, on the indoor side of the peri counter 24,
As shown in FIG. 2A in an enlarged manner, a first heater device 40 and a second heater device 42 are provided. Further, between these heater devices 40 and 42, an air passage 44 through which the cold draft 30 passes is defined.
The upper end of the ventilation path 44 communicates with an air outlet 46 formed on the upper surface of the peri counter 24. In order to minimize the blowing resistance and increase the blowing air volume, the outlet 46 has a dimension L in the thickness direction of the opening 28.
Is desirably larger than the thickness direction dimension (about 20 mm to 30 mm) of about 40 mm. According to the applicant's experiment, when only the size of the outlet 46 is reduced to 20 mm, the outlet wind speed hardly changes, but the outlet area is halved and the thickness of the airflow is reduced.
The total amount of air blown out from the air outlet 6 is reduced, so that the cold draft does not completely enter the opening 28 and flows toward the interior side toward the outlet 46, so that the so-called spill cold draft cannot be processed. It was found that the inflow into the room could not be prevented, resulting in a loss of comfort. On the other hand, the size of the outlet 46 is set to 60
mm, the velocity of the air blown out from the outlet 46 decreases, similarly, the occurrence of the spilled cold draft cannot be cut off, and the spilled cold draft cannot be prevented from flowing into the indoor side. It turned out to result in a loss of comfort. That is, when the size of the outlet 46 is set to 40 mm, the temperature-controlled air blown out from the outlet 46, that is, the natural draft 60 has an appropriate blowing wind speed, and as a result, the natural draft 60 The draft can be taken in and the spilled cold draft can be almost completely prevented from flowing into the room. In order to effectively utilize this intake effect, it is desirable that the air outlet 46 is directed upward and the temperature-controlled air, that is, the natural draft 60 is directly discharged into the room. In the present invention, the natural draft 60 is defined as the cold draft 30 including the first and second drafts.
Although only the air that is temperature-adjusted when passing through the ventilation passage 44 between the heater devices 40 and 42 and that is blown out from the air outlet 46 is shown, the radiation heat semiconductor heater of the second heater device 42 is actually used. It also includes the draft that is heated by 52 and rises. However, the draft that is heated by the heater 52 and rises has a smaller air volume than the draft that is blown out from the outlet 46, and the effect of contributing to the intake of the spilled cold draft is not so large. It can be ignored. That is, in the present invention, the cold draft 30 descending into the room along the window glass 22 due to the specific gravity difference flows into the pericover heating device 20 from the suction port 32. Then, the air flows into a flow passage having a generally U-shape in the device 20, and the heat exchanged air in the ventilation passage 44 directed upward from the flow passage rises from the flow passage, whereby the air in the flow passage is formed. , And the cold draft is sucked into the reduced-pressure ventilation passage, where the temperature is adjusted, that is, heat is exchanged. The cold draft that has been heat-exchanged in this way, without using a power device such as a fan, rises in the flow passage through the ventilation passage 44 and flows upward through the heat-exchanged cold draft, and from the suction port 32. The efficiency of the natural draft 60 from the outlet 46 into the room only due to the push-up force of the cold draft 30, which acts to push up the ascending airflow of the heat-exchanged cold draft from the upstream side and is sucked into the flow passage. Release well.

As shown in FIG. 2, the first heater device 40
Is, for example, a pair of upper and lower heating media 4
8 and a heat insulator 50 that supports it from the rear surface. Similarly, the second heater device 42 includes a pair of upper and lower heating media 52 disposed on the front surface thereof, and a heat insulator 54 supporting the heating media 52 from the rear surface. Here, both the heating mediums 48 and 52 are temperature-controlled by the temperature controller 38. The heating medium 48 of the first heater device 40 is a convection heat semiconductor heater and has a function of heating air passing through the heating medium 48 to a predetermined temperature by convection. On the other hand, the heating medium 52 of the second heater device 42 is a radiating heat semiconductor heater and has a function of keeping the indoor environment comfortable, that is, soft warm by radiant heat. The heating medium 52 is directly installed on the indoor side surface of the peri-counter 24 without leaving a space on the indoor side surface of the peri-counter 24. That is, if there is a space between the heating medium 52 and the indoor side surface of the peri counter 24, the temperature due to the indoor radiation rises only to 29 ° C., and the most preferable warm radiation surface surface temperature is 3 ° C.
This is because it has been clarified by experiments conducted by the applicant that the heating effect cannot be expected to be as high as 9 to 41 ° C.

The optimum PMV index (predicted mean), which has been clarified by the applicant's experiment,
The relationship between the heating medium and the outside air temperature for obtaining the vote is as follows. Heat semiconductor heater for convection 4
The set temperature of 8 is always set to 45 ° C., and the set temperature of the radiating heat semiconductor heater 52 is changed as follows according to the change of the outside air temperature. From this, it was found that the most comfortable indoor environment can be obtained by changing the set temperature of the heat semiconductor heater as follows in accordance with the change in the outside air temperature. The reason why the set temperature of the heat semiconductor heater 48 for convection is always 45 ° C. is that the upper limit of the adjustable temperature of the heater is 50 ° C., and it is necessary to set the temperature lower than this temperature. If set to, the blowing temperature is 2
8 ° C. to 30 ° C., causing a mixing loss (energy loss).
This is because the temperature is 5 ° C. to 27 ° C. and a comfortable situation is obtained. As shown in FIG. 4, the temperature setting of the radiating heat semiconductor heater 52 is measured by a thermometer (not shown) installed in a well-known perennial box (not shown) mounted on a rooftop or the like. The outside air temperature information is determined by the temperature controller 38 or the like to set a predetermined temperature, and the temperature of the heater 52 is specified based on the set value information. Therefore, the temperature of the heater 52 can be automatically adjusted in conjunction with the outside air temperature.

1) When the outside air temperature is about 0 ° C .: The set temperature of the radiating heat semiconductor heater 52 is 42 ° C. (the surface temperature of the warm radiation surface is 41 ° C. at this time) 2) When the outside air temperature is about 5 ° C .: The set temperature of the radiation heat semiconductor heater 52 is 41 ° C. (the temperature of the warm radiation surface is 40 ° C.) 3) When the outside air temperature is about 10 ° C .: The set temperature of the radiation heat semiconductor heater 52 is 40 ° C. The surface temperature of the warm radiation surface at the time of 39 ° C).

A comparison between a heating system using only the convection heat semiconductor heater 48 and a heating system using both the convection heat semiconductor heater 48 and the radiation heat semiconductor heater 52 shows that the indoor environment is significantly reduced in the combined type. It has been found to improve. That is, according to the experiment of the applicant, the evaluation when the heat semiconductor heater for convection 48 and the heat semiconductor heater for radiation 52 were used together was 25 points out of a maximum, whereas only the heat semiconductor heater for convection 48 was evaluated. In the heating method, 9 points were less than half.

In the example shown in FIG. 1, the lower end of the peri counter 24 extends from the OA work floor 56 to the skeleton floor 58, but this is not always necessary, and the end can be terminated at the OA work floor 56. .

In the pericover heating device 20 of the present invention disclosed here, unlike the devices shown in FIGS. 5 and 6, only the cold cold draft is sucked in and heated and discharged into the room. No inhalation was done. Further, no forced discharge device is used for discharging the heated air. This prevents mixing loss of heat.

When a blind (not shown) is used in the pericover heating device 20 of the present invention, it is preferable to arrange the blind so that its hanging lower end is located between the opening 28 and the outlet 46. . If the blind is located between the window glass 22 and the opening 28, the cold draft 30 moves over the opening 28, and cool air accumulates at the feet, which cannot provide a favorable result.

In place of the thermal semiconductor heater of the above-described embodiment, other types of planar heaters, electric heaters, hot water heaters,
A steam heater or the like may be provided. Cable rack 3
4. The pull box 30, the temperature controller 38 and the like can be housed in other places without being housed inside the peri counter 24.

In the above embodiment, as shown in FIG. 2A, in the second heater device 42, the radiating heat semiconductor 52 is provided only on the indoor side surface. However, this is not a limitation. For example, FIG. As shown, the heat semiconductor heater for convection is located on the side of the second heater device 42 facing the air passage 44, that is, at the position facing the first heater device 40, and substantially back to back with the heat semiconductor 52 for radiation. A third heater device 64 having a convection thermal semiconductor heater 62 similar to 48 can also be attached. This makes it possible to further increase the temperature of the natural draft 60, which is the temperature of the convection airflow passing through the ventilation path 44, if necessary, thereby increasing the air volume of the natural draft 60. In addition, the so-called spilled cold draft can be efficiently shut off, and the natural draft and the spilled cold draft are moderately diffused and mixed, and the spilled cold draft is brought near the perimeter, thereby quickly eliminating the adverse effects. It is. Alternatively, backup when the first heater device 40 fails can be guaranteed. The former case is particularly useful for raising the temperature of the natural draft 60 passing through the ventilation passage 44, for example, when it is desired to heat the perimeter portion and the interior portion simultaneously in a nursing home or the like. At this time, the heat interference between the left and right heaters can be minimized by arranging the heat blocking material in the up-down direction in the ventilation path to separate the inside of the ventilation path 44 left and right.

Further, as shown in FIG. 2C, a third similar convection or radiation heat semiconductor heater 70 is provided at a position back to back with the convection heat semiconductor heater 48 of the first heater device 40. May be installed at a predetermined interval (for example, L). In this case, it is desirable to newly provide a ventilation path 74 through which the cold draft heated by the new heater 70 passes, inside the peri counter 24. As a result, the thickness of the airflow of the natural draft can be increased, and as a result, the airflow of the natural draft increases, the trapping force of the cold draft increases, and the spillage of the cold draft decreases, and as a result, The comfort in the room increases. Further, the cold draft 30 can be heat-exchanged through two routes of the ventilation path 44 and the newly formed ventilation path 74 to form a natural draft, and the blowout of the natural draft at that time is further separated from the outlet. It can also be provided, and the two natural drafts are combined and
You can also blow out from 6. By such a method, the temperature of the natural draft blown out from the blowout port 46 can be increased as necessary, as described above, or the heat semiconductor heater 48 for convection of the first heater device 40 can be used.
Backup can be guaranteed in case of failure. In this case, it is possible to freely select additional heater devices or increase or decrease the number of heaters used in each heater device as needed.

[0025]

According to the present invention as shown in FIG. 1, by arranging the suction port 32 sideways toward the window side, almost all the cold draft 30 is sucked into the suction port 32. The sucked cold draft 30 is heated by the convection heat semiconductor heater 48 to become warm air and the specific gravity is reduced to an ascending airflow.
With the pushing force of 0, the air is naturally discharged from the air outlet 46 into the room. That is, since the present invention is a fanless heating system in the perimeter zone, energy saving is achieved. Also, as shown in FIG. 3, the present invention is different from the conventional fan heater as shown in FIG.
If the hot air subjected to the heat exchange is not forcibly transferred to the interior part and the temperature of the convection heat semiconductor heater 48 is set to 45 ° C. when the outside air is 0 ° C., the temperature of the air at the outlet is The temperature is about 25 ° C. to 27 ° C., and the difference from the room temperature is small, so that the state in which the interior part becomes excessively high does not occur, and the conventional fan as shown in FIG. Mixing loss, that is, energy loss can be extremely prevented as compared with the one using a heater.

Further, since the heat semiconductor heater 52 for radiation is juxtaposed, warm radiation is obtained from the front surface of the peri cover, and the environment at the foot is remarkably improved.

Furthermore, the heating system using the convection heat semiconductor heater 48 and the radiation heat semiconductor heater 52 together improved the environment of the window side or the north side perimeter zone to an optimum state.

[Brief description of the drawings]

FIG. 1 is a sectional view schematically showing a pericover heating device of the present invention.

FIG. 2 is an enlarged view showing a heater device portion of the pericover heating device of the present invention, where A is a heater including one convection heater device and one radiation heater device with one ventilation path interposed therebetween. It is an enlarged view which shows the heater apparatus part comprised by an apparatus, B is an enlarged view which shows the heater apparatus part comprised by three heater apparatuses on both sides of one ventilation path, C is: FIG. 3 is an enlarged view showing a heater device portion configured by three heater devices so as to form two ventilation paths.

FIG. 3 is a diagram showing the entire system to which the pericover heating device of the present invention is attached.

FIG. 4 is a view showing a flowchart for performing temperature control of a radiation heating medium of the pericover heating device of the present invention.

FIG. 5 is a view similar to FIG. 1, showing a known example.

FIG. 6 is a view similar to FIG. 1 showing another known example.

FIG. 7 is a view similar to FIG. 3, illustrating the entire normal system when a known fan coil is used as a pericover heating device.

FIG. 8 is a view similar to FIG. 3 showing the entire system in an intelligent building or the like when a known fan coil is used as a pericover heating device.

[Description of Signs] 20: Pericover heating device 22: Window glass 24: Peri counter 26: Waist wall 28: Opening (cold draft receiving port) 30: Cold draft 32: Suction port 34: Cable rack 36: Pull box 38: Temperature Controllers 40, 42: Heater device 44: Ventilation path 46: Blow-out port 48: Heat semiconductor heater for convection 50: Heat insulator 52: Heat semiconductor heater for radiation 54: Heat insulator 56: OA work floor 58: Building floor 60: Natural Draft 62: Heat semiconductor heater for convection 64: Heater device 70: Heat semiconductor heater 72: Heater device 74: Ventilation path

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-292721 (JP, A) JP-A-5-44998 (JP, A) JP-A-3-271637 (JP, A) 161587 (JP, A) JP-A-4-165233 (JP, A) JP-A-2-147724 (JP, U) JP-A-4-100524 (JP, U) (58) Fields investigated (Int. ⁷ , DB name) F24F 13/32 F24F 1/00 341 F24F 1/00 401

Claims (7)

(57) [Claims] 1. A peri-cover heating device (20) arranged on a window side wall portion in a room, comprising: a suction port (32) for sucking a cold draft (30); 46, a flow passage having a generally U-shape that descends from the suction port 32 and then turns upward to the outlet 46, and is disposed in an upwardly directed region in the flow passage. A heating means for heating the cold draft 30 sucked into the flow passage; a peri-counter 24 having a suction port 32 and a blow-out port 46 for preventing room air from flowing into the flow path; A heating means for heating the cold draft 30 to a predetermined temperature, and a second heating means for heating the indoor temperature.
And an air passage 44 formed between the heater devices 40 and 42 and connected to the air outlet 46.
A convection flow in which the first heater device 40 is opposed to the air passage 44 and heat exchanges with the cold draft up to a predetermined temperature when the cold draft 30 passes through the air passage 44. The second heater device 42 has a radiation heating medium 52 disposed toward the room, and the heat-exchanged cold draft is provided in the ventilation passage 44.
From the outlet 46 only due to the ascending airflow of the heat-exchanged cold draft that rises in the flow passage through and the pushing-up force of the cold draft 30 sucked into the flow passage from the suction port 32. The pericover heating device 20 which is discharged into the room as a natural draft 60. 2. A cold draft suction port 32 is formed through an opening 28 of the peri-counter 24, and the size of the opening from the glass surface 22 in the thickness direction is about 20 mm to 30 mm.
The pericover heating device according to claim 1, wherein: 3. The peri-cover heating system according to claim 1, wherein the dimension from the upper surface of the waist wall 26 to the upper surface of the peri counter 24 forming the suction port 32 of the cold draft is at least 30 mm. apparatus. 4. The size of the outlet 46 in the thickness direction is equal to that of the opening 28.
2. The size of the first member is larger than the thickness of the first member.
A pericover heating device according to claim 1. 5. A thickness direction dimension of the outlet 46 is approximately 40
The pericover heating device according to claim 4, wherein the thickness is in mm. 6. The peri-cover heating device according to claim 1, wherein the second heater device has a convection heating medium facing the ventilation path. 7. The convection heating medium 4 according to claim 1, wherein
8 and another heating medium 70 at a predetermined interval
The pericover heating device according to any one of claims 1 to 6, further comprising: