JP2012007852A - Pneumatic radiation panel device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pneumatic radiation panel device which can flow out air from an entire surface of a radiation panel almost evenly.SOLUTION: The pneumatic radiation panel device includes: a panel body 2 which is nearly rectangular parallelepiped and forms one space inside, in which a duct connection part 22 to which a duct 100 is connected is provided on a back side, and a plurality of blowout holes 2a for flowing out conditioned air externally are formed on a radiation panel 23, that is a surface opposed to the duct connection part 22, to have a predetermined aperture rate; and a porous body 3 which is provided in the panel body 2, and controls the flow of the conditioned air in the panel body 2 to evenly flow out the conditioned air from each blowout hole 2a.

Description

  The present invention relates to a pneumatic radiant panel device having both radiation (radiation) and convection functions.

  In air conditioning, an air conditioning apparatus having both a radiation method using radiant heat and a convection method is known in the convection method that blows temperature-conditioned conditioned air because the airflow is greatly uncomfortable (for example, , See Patent Document 1). This air conditioner has a plurality of ventilation holes on the surface and radiation surface of the radiant panel, performs radiant air conditioning with the radiant panel surface at a predetermined temperature, and performs convection air conditioning by flowing conditioned air from the vent holes It is.

Japanese Patent Laid-Open No. 11-159789

  By the way, a duct is connected to the chamber of the radiant panel, and conditioned air sent from the duct flows through the chamber and flows out from each vent hole of the radiant panel. That is, since the positional relationship of each vent hole with respect to the connection part of the duct is different, the conditioned air is not evenly discharged from each vent hole, and the temperature of the radiating panel is not equalized. Thus, since conditioned air does not flow out uniformly from the entire surface of the radiation panel, an appropriate radiation effect and convection effect cannot be obtained.

  Therefore, an object of the present invention is to provide a pneumatic radiant panel device capable of allowing air to flow out almost uniformly from the entire surface of the radiant panel.

  In order to achieve the above object, the invention according to claim 1 is a pneumatic radiant panel device in which conditioned air whose temperature is adjusted is sent from a duct and performs radiant air conditioning using radiant heat generated by the conditioned air. In addition, the conditioned air is externally connected to a radiant panel, which is a substantially rectangular parallelepiped box shape and has a single space inside, and a duct connection portion to which the duct is connected is provided on the back side, and is a surface facing the duct connection portion. A plurality of blowout holes to be flown out into the panel body, and the panel body is provided in the panel body, and the flow of conditioned air in the panel body is controlled to control the conditioned air. And an equalizing means for evenly flowing out from each of the blowout holes.

  According to the present invention, when conditioned air is sent from the duct connected to the duct connection portion of the panel body, radiant air conditioning is performed in the radiating panel of the panel body, and conditioned air is sent to the outside from each outlet hole of the radiating panel. Outflow and convection air conditioning are performed. At this time, the flow of the conditioned air in the panel main body is controlled by the equalizing means, and the conditioned air flows out from each blowout hole evenly.

  According to a second aspect of the present invention, in the pneumatic radiating panel device according to the first aspect, the equalizing means is porous and suppresses the flow of the conditioned air, and substantially fills the entire internal space of the panel body. It is a porous body.

  A third aspect of the present invention is the pneumatic radiant panel device according to the second aspect, wherein the porous body has a heat storage action.

  According to the first aspect of the present invention, the flow of the conditioned air in the panel body is controlled by the equalizing means, and the conditioned air is evenly discharged to the outside from the respective blowing holes. For this reason, the surface temperature of the radiating panel becomes uniform over the entire surface, and an appropriate radiating effect can be obtained, and an appropriate and comfortable convection effect can be obtained. Moreover, since the blowout holes are formed so as to have a predetermined aperture ratio, it is possible to appropriately maintain the radiation effect from the radiation panel.

  According to the invention described in claim 2, since the equalizing means is merely constituted by the porous body that substantially fills the entire internal space of the panel main body, the configuration is simple, and assembly and handling are easy. . In addition, since the entire internal space of the panel body is almost filled with a porous material, there is no gap in the internal space, the thickness of the panel body (distance between the back side and the radiation panel) can be reduced, and sound absorption (soundproofing) ) Effect and heat insulation effect can be obtained.

  According to the third aspect of the present invention, since the porous body has a heat storage action, the radiation effect can be maintained for a certain period of time even when the supply of conditioned air from the duct is stopped. Can be reduced.

It is sectional drawing which shows the pneumatic radiant panel apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the wind speed point in Embodiment 1 of this invention. It is a figure which shows the temperature point in Embodiment 1 of this invention. It is a figure which shows the wind speed measurement result at the time of the cold wind of the pneumatic radiant panel apparatus of FIG. It is a figure which shows the wind speed measurement result at the time of the warm air of the pneumatic radiation panel apparatus of FIG. It is a figure which shows the temperature measurement result before the cold wind supply start of the pneumatic radiant panel apparatus of FIG. It is a figure which shows the temperature measurement result 30 minutes after the cold wind supply start of the pneumatic radiant panel apparatus of FIG. It is a figure which shows the temperature measurement result 60 minutes after the cold wind supply start of the pneumatic radiant panel apparatus of FIG. It is a figure which shows the temperature measurement result before the warm air supply start of the pneumatic radiant panel apparatus of FIG. It is a figure which shows the temperature measurement result 30 minutes after the hot air supply start of the pneumatic radiant panel apparatus of FIG. It is a figure which shows the temperature measurement result 60 minutes after the hot air supply start of the pneumatic radiant panel apparatus of FIG. It is sectional drawing which shows the pneumatic radiant panel apparatus which concerns on Embodiment 2 of this invention. It is sectional drawing which shows the pneumatic radiant panel apparatus which concerns on Embodiment 3 of this invention. It is sectional drawing which shows the pneumatic radiant panel apparatus which concerns on Embodiment 4 of this invention. It is sectional drawing which shows the pneumatic radiant panel apparatus which concerns on Embodiment 5 of this invention.

  The present invention will be described below based on the illustrated embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view showing a pneumatic radiant panel device 1 according to this embodiment. The pneumatic radiant panel 1 is a panel in which conditioned air whose temperature is adjusted is sent from a duct 100 and performs radiant air conditioning using radiant heat generated by the conditioned air, and includes a panel body 2 and a porous body (equalizing means). 3).

  The panel body 2 is a rectangular box shape made of metal and having a small thickness, and the inside is a single space. That is, the internal space has no partition and is not partitioned. In addition, a cylindrical duct connection portion 22 to which the duct 100 is connected is provided at the center portion of the back plate 21, and the radiation panel 23 that is a surface facing the duct connection portion 22 has a plurality of blowout holes 2 a. Is formed. The blowout hole 2a is a hole having a size that allows the conditioned air to flow outside, and is formed so that the radiation panel 23 has a predetermined aperture ratio.

  Specifically, the panel body 2 has a length of 2000 mm, a width (depth in the drawing) of 500 mm, and blow holes 2 a having a diameter of 10 mm are formed on the entire surface of the radiation panel 23 with a pitch of 25 mm. By forming such blowout holes 2a, the aperture ratio of the radiation panel 23 is 11.8%, and a predetermined radiation effect is ensured.

  In this embodiment, such a panel body 2 can be divided into a radiation panel 23 and a chamber which is another part. However, the panel body 2 may be divided into a back plate 21 and other parts.

  The porous body 3 is provided in the panel main body 2 and controls the flow of conditioned air in the panel main body 2 so that the conditioned air flows out from the respective blowout holes 2a evenly. Specifically, it is composed of a porous, sponge-like, thin plate-like filter that suppresses the flow of conditioned air, and conditioned air that has flowed in from one duct connection portion 22 directly (immediately) enters the radiating panel 23. Without reaching, it spreads in the horizontal direction in the figure and flows out almost uniformly from the entire surface of the radiation panel 23. Moreover, the thickness of the porous body 3 is set to approximately half of the inner thickness H1 of the panel body 2. That is, in this embodiment, the inner thickness H1 is 100 mm, the radiating panel 23 side is a reference surface (arrangement surface), the central portion of the porous body 3 facing the duct connection portion 22 is 60 mm, and other portions Is set to 40 mm.

  Next, the operation of the pneumatic radiant panel device 1 having such a configuration will be described.

  When the duct 100 is connected to the duct connection portion 22 of the panel body 2 and conditioned air such as cold air or warm air is sent from the duct 100, the conditioned air passes through the panel body 2 and the porous body 3 and is transmitted to the radiation panel 23. Radiant air conditioning is performed from the surface of the radiation panel 23 by radiation and radiation action. At the same time, the conditioned air is discharged and discharged from each outlet hole 2a of the radiating panel 23 to perform convection air conditioning. At this time, as described above, the porous body 3 causes the conditioned air to flow out almost uniformly from each of the blowout holes 2a on the entire surface of the radiation panel 23.

  As described above, according to the pneumatic radiant panel device 1, conditioned air is almost uniformly discharged from the entire surface of the radiant panel 23 to the outside by the porous body 3. For this reason, the surface temperature of the radiation panel 23 becomes uniform over the entire surface, and an appropriate radiation effect can be obtained, and an appropriate and comfortable convection effect can be obtained. Moreover, since the aperture ratio is set as described above, the radiation effect from the radiation panel 23 can be properly maintained. In addition, since the surface temperature of the radiating panel 23 is uniform over the entire surface, there is no temperature unevenness, the radiation performance is improved, and the area of the radiating panel 23 can be reduced. As a result, the pneumatic radiating panel device 1 is manufactured. Costs and installation costs can be reduced. Furthermore, when the surface temperature of the radiation panel 23 is set to 20 ° C. with cold air, for example, since there is no temperature unevenness, the blowout temperature can be increased by 1 to 2 ° C. compared to normal air cooling, and the evaporation temperature of the refrigerator As a result, the energy of the refrigerator can be saved.

  Here, the verification result confirming such an effect will be described. Here, the case where the pneumatic radiation panel device 1 is positioned horizontally with the surface of the radiation panel 23 facing downward will be described.

First, as shown in FIG. 2, the radiating panel 23 is divided into three lines P1 to P3 in the width direction, and from the surface of the radiating panel 23 at points of 300 mm intervals on each line P1 to P3 (x mark in the figure). The position below 100 mm was taken as the wind speed point for measuring the wind speed, that is, the position where the fine anemometer was placed. Also, as shown in FIG. 3, the surface of the radiating panel 23 is divided into four lines P4 to P7 in the width direction, and the surface temperature is measured at points (black circles in the figure) at intervals of 300 mm on each line P4 to P7. The temperature point to be used, that is, the thermocouple placement position. The temperature of the cold air was 16 ° C., the temperature of the hot air was 34 ° C., and the supply amount / air volume from the duct 100 was 2 m ³ / min.

  When cold air is supplied from the duct 100 under such measurement conditions, the wind speed at each wind speed point is about 0.4 m / sec even at the earliest central portion (around the duct connecting portion 22) as shown in FIG. At other wind speed points, it was approximately 0.2 m / second or less. Similarly, when warm air is supplied from the duct 100, the wind speed at each wind speed point is 0.3 m / sec or less at the earliest center as shown in FIG. 5, and is almost 0 at other wind speed points. It was 1 m / sec or less. In this way, it was confirmed that the wind speed was such that almost no draft was felt on the entire surface of the radiating panel 23 during the cold wind and the hot wind, and the wind speed was almost uniform.

  Moreover, the temperature of each temperature point before supply start, 30 minutes after the start, and 60 minutes after the start when cold air is supplied from the duct 100 is shown in FIGS. From this result, it was confirmed that there was no large temperature difference (about ± 1 ° C.) and the temperature was almost uniform over the entire surface of the radiation panel 23. Similarly, the temperature of each temperature point before supply start, 30 minutes after start, and 60 minutes after start when hot air is supplied from the duct 100 is shown in FIGS. From this result, it was confirmed that there was no large temperature difference (about ± 1 ° C.) and the temperature was almost uniform over the entire surface of the radiating panel 23 even during warm air.

  Furthermore, in this embodiment, since the equalizing means is only composed of the porous body 3, the configuration is simple, and assembly and handling are easy. In addition, since the panel body 2 only needs to have a space for disposing the porous body 3, the inner thickness H1 of the panel body 2 can be reduced, and the pneumatic radiating panel device 1 can be mounted on the back of the ceiling or the wall. It becomes possible to arrange | position easily.

  In addition, in order to allow the conditioned air to flow out evenly, a high static pressure filter used in a clean room is used to convert the dynamic pressure of the airflow into static pressure, and the filter static pressure is as high as 100 Pa (filter The pressure loss of the blower motor is high). In contrast, in this embodiment, the conditioned air can be evenly flowed out even at a low static pressure. For example, even if the pressure difference between the air supply side and the blowout side of the radiating panel 23 is about 7 Pa, Therefore, energy saving can be achieved.

(Embodiment 2)
FIG. 12 is a cross-sectional view showing the pneumatic radiant panel device 10 according to this embodiment. In this embodiment, the equalizing means is different from that of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted, and the same applies to the subsequent embodiments. To do.

  In this embodiment, the equalizing means is constituted by the second porous body 4. Like the porous body 3 in the first embodiment, the second porous body 4 is composed of a sponge-like filter that suppresses the flow of conditioned air and has a heat storage function. . Moreover, the thickness is set so that the whole internal space of the panel main body 2 may be filled. That is, the inner thickness H2 of the panel body 2 is substantially half of the inner thickness H1 in the first embodiment, and the thickness of the second porous body 4 is set to the same dimension as the inner thickness H2. In other words, the thickness H2 of the second porous body 4 is set to a thickness required for the conditioned air flowing into the panel main body 2 to spread horizontally in the figure and to flow out uniformly from the entire surface of the radiation panel 23. The inner thickness of the panel body 2 is also set to the same dimension as the thickness H2. As a result, no gap is generated between the panel body 2 and the second porous body 4.

  According to this embodiment, as described above, since the inner thickness of the panel body 2 is set to the same dimension as the thickness of the second porous body 4, the thickness of the panel body 2 can be reduced. And since there is no space | gap in the internal space of the panel main body 2, the sound absorption (soundproof) effect and the heat insulation effect can be acquired. Furthermore, since the second porous body 4 has a heat storage action, even when the supply of conditioned air is stopped, the radiation effect can be maintained for a certain period of time by the stored thermal energy. Can be reduced.

(Embodiment 3)
FIG. 13 is a cross-sectional view showing a pneumatic radiant panel device 20 according to this embodiment. In this embodiment, the equalizing means is composed of a plurality of guide plates 51-53.

  That is, these guide plates 51 to 53 are plate-like, and a plurality of blowout holes 5a equivalent to the blowout holes 2a of the first embodiment are punched. The first guide plate 51 and the second guide plate 52 are disposed so as to face obliquely downward from the end of the back plate 21 of the panel body 2 in the figure, and the third guide plate 53 is connected to the duct. Opposite to the portion 22, it is disposed horizontally so that a gap is formed between the guide plates 51 and 52.

  These guide plates 51 to 53 are supported and arranged by a support member (not shown), and the conditioned air flowing in from the duct connection portion 22 is diffused in the horizontal direction by the guide plates 51 to 53, so that the radiation panel 23 It flows out evenly from the entire surface. Thus, according to this embodiment, as in the first embodiment, the conditioned air is almost uniformly discharged from the entire surface of the radiating panel 23 by the guide plates 51 to 53, and the appropriate radiating effect and the proper radiating effect are obtained. A comfortable convection effect can be obtained.

(Embodiment 4)
FIG. 14 is a cross-sectional view showing a pneumatic radiant panel device 30 according to this embodiment. In this embodiment, the equalizing means is constituted by a propeller 6.

  The propeller 6 has a plurality of blades, and is rotatably disposed in a state where the blades are positioned directly below the duct connection portion 22 in the drawing. Then, by rotating the propeller 6, the conditioned air flowing in from the duct connection portion 22 is diffused in the horizontal direction and flows out uniformly from the entire surface of the radiation panel 23. Here, the propeller 6 may be rotated by a motor, or may be rotated by conditioned air from the duct connection portion 22.

  As described above, according to this embodiment, as in the first embodiment, the conditioned air is almost uniformly discharged from the entire surface of the radiating panel 23 by the propeller 6 to obtain an appropriate radiating effect and an appropriate and comfortable feeling. A convection effect can be obtained.

(Embodiment 5)
FIG. 15 is a cross-sectional view showing a pneumatic radiant panel device 40 according to this embodiment. In this embodiment, the equalizing means is constituted by a slide damper 7.

  The slide damper 7 has a hollow conical shape, and a plurality of blow holes 7a equivalent to the blow holes 2a of the first embodiment are punched on each wall surface. Such a slide damper 7 is arranged so that the top thereof faces the duct connection portion 22, and the conditioned air flowing in from the duct connection portion 22 is diffused in the horizontal direction by the slide damper 7, and the entire surface of the radiation panel 23. It flows out evenly. Thus, according to this embodiment, as in the first embodiment, the conditioned air is almost uniformly discharged from the entire surface of the radiating panel 23 by the slide damper 7 to obtain an appropriate radiating effect and appropriate and comfortable. It is possible to obtain a good convection effect.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the first and second embodiments, the sponge-like porous bodies 3 and 4 are used. However, a fibrous porous body may be used, and the thickness and porosity of the porous bodies 3 and 4 may be used. May be changed according to the arrangement site, and the conditioned air may flow out more uniformly from the entire surface of the radiation panel 23.

DESCRIPTION OF SYMBOLS 1, 10, 20, 30, 40 Pneumatic radiation panel apparatus 2 Panel main body 21 Back plate 22 Duct connection part 23 Radiation panel 2a Outlet hole 3 Porous body (equalization means)
4 Second porous body (equalization means)
51-53 Guide plate (equalizing means)
6 Propeller (equalization means)
7 Slide damper (equalization means)
100 duct

Claims (3)

A temperature-adjusted conditioned air is sent from a duct, and is a pneumatic radiant panel device that performs radiant air conditioning using radiant heat from the conditioned air,
An approximately rectangular parallelepiped box-shaped interior with a single space, a duct connection part to which the duct is connected is provided on the back side, and the conditioned air is exposed to the outside on the radiation panel that faces the duct connection part. A plurality of panel bodies formed so that the blowout holes to flow out have a predetermined opening ratio;
Equalizing means provided in the panel main body, controlling the flow of conditioned air in the panel main body, and causing the conditioned air to flow out from each of the blowout holes;
A pneumatic radiant panel device comprising:   The pneumatic radiating panel device according to claim 1, wherein the equalizing means is a porous body that is porous and suppresses the flow of the conditioned air, and substantially fills the entire internal space of the panel body. . The pneumatic radiant panel device according to claim 2, wherein the porous body has a heat storage function.

Images