JP2008014556A - Radiant cooling/heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radiant cooling/heating device capable of improving comfort by shortening a rising time of a ceiling panel and eliminating uncomfortable airflow. <P>SOLUTION: Cooling/heating air is allowed to pass along a surface of a radiant panel by the Coanda effect in rising to cool/heat the radiant panel in advance before a radiating operation, thus a damper can be smoothly switched without uncomfortable temperature rise. Further the direction of airflow can be changed in rising or according to preference of hot or cold feeling by disposing a wind direction changing blade on a supply part of a panel face airflow producing means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a radiant air conditioner that cools or heats a radiant panel surface to cool and heat an indoor space.

  Conventionally, this type of radiant cooling and heating apparatus is disclosed in Patent Document 1. As shown in FIG. 5, the heat exchange pipe 40 is installed on the ceiling surface, and the cooling or heating fluid is allowed to flow through the heat exchange pipe 40 to cool or heat the ceiling to cool and heat the indoor space A by ceiling radiation. (For example, refer to Patent Document 1).

Moreover, there exists what is shown by patent document 2. FIG. As shown in FIG. 6, the ceiling radiating panel 20 is cooled or heated by the cool and warm air blown from the air conditioner 30 to the ceiling radiating panel 20 provided with a plurality of small holes 20 a. In addition, by supplying a part of the cool / warm air to the indoor space A from the small hole 20 a, the indoor space A can be cooled and heated by both convection and radiation from the ceiling radiating panel 20.
Japanese Patent Laid-Open No. 10-227495 JP-A-6-174261

  Conventionally, as shown in Patent Document 1, indoor air conditioning has been performed by application of the refrigerant circulation method, but it is difficult to obtain comfort because it takes time to cool and heat the room only with ceiling radiation. was there. Therefore, by applying the convection method as in Patent Document 2 and performing cooling and heating by both convection and radiation, the cooling and heating time has been shortened. However, the conventional configuration has a problem that the air blown from the small holes provided in the ceiling radiating panel directly hits the body and becomes uncomfortable.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a radiant cooling and heating apparatus that can prevent a problem that it takes a long time for cooling and heating and a problem that cold and hot air directly hits a person and decreases comfort. To do.

  In order to solve the above-mentioned conventional problems, the radiant cooling and heating apparatus of the present invention is provided with a guider-like panel surface airflow generating means at the outlet, so that the air blown from the air conditioner blows along the radiant panel on the radiant panel surface. With this configuration, the interior of the ceiling radiant panel can be cooled and heated by the Coanda effect, and the room can be cooled and heated at the same time, and the room can be comfortably cooled and heated without being directly exposed to cold or hot air. In addition, wind direction diverting blades are attached to the blowout part of the panel surface air flow generation means, and the angle can be changed according to the preference of the wind direction diverting blades when standing up or when you feel the coldness of the heat. The indoor space can be simultaneously heated and cooled by both air and radiation from the ceiling radiating panel.

  With the configuration as described above, there is no small hole in the radiant panel, so cold air does not directly hit the person, and the Coanda effect does not directly hit the person, and the room is convectively air-conditioned early. And comfort can be improved.

The radiant cooling / heating device of the present invention can shorten the rise time of the conventional ceiling radiant panel and prevent the cool air from directly hitting the body and reducing the comfort.

  According to the first aspect of the present invention, by providing a guider-like panel surface airflow generating means for the airflow generated from the outlet so that the airflow flows along the radiating panel surface, the airflow is directly applied to the body by the Coanda effect. Can be prevented, leading to prevention of a decrease in comfort.

  According to the second aspect of the present invention, by providing a round shape to the panel surface airflow generation means, the airflow that has blown into the room is not disturbed, and the airflow easily flows along the radiation panel surface, and the airflow hits a person. To prevent.

  In a third aspect of the invention, a suction port is provided on the opposite side of the panel surface airflow generation means.

  When the blown airflow is sucked from the panel surface airflow generation means, the airflow is disturbed unless the airflow is opposed to the blown air, and further, the airflow hits a person and comfort is impaired. For this purpose, a suction port is provided on the opposite side.

  In a fourth aspect of the present invention, wind direction diverting blades are provided in the air flow blowing portion of the panel surface air flow generating means. When you feel the heat or cold at the start of air conditioning or during use, you can change the direction of the airflow to the indoor space by changing the wind direction vane to the desired angle, and the comfort of the indoor space It is an improvement.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a cross-sectional view of the ceiling when the radiant cooling and heating apparatus according to the first embodiment of the present invention is installed.

  In FIG. 1, A is an indoor space. Reference numeral 1 denotes a radiant cooling and heating device, 2 an air conditioner, 3 a flow path, 4 a damper, 5 a panel surface airflow generating means, 6 a radiation panel, 7 a suction port, and 8 a panel flow path.

  About the radiation | emission cooling and heating apparatus 1 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, at the time of air-conditioning start-up, cold / warm air cooled or heated by the air conditioner 2 passes through the flow path 3, passes through the damper 4, and is introduced into the indoor space A. At this time, the cool / warm air is blown out in the direction of the radiating panel 6 by the panel surface air flow generating means 5, passes along the surface of the radiating panel 6 by the Coanda effect, is sucked from the suction port 7, and flows through the ceiling radiant air conditioner 1. It is introduced into the road 3 and circulated. At this time, the indoor space A is also cooled or heated by the convection of the blown air, and the radiating panel 6 is simultaneously cooled or heated.

  In this state, when the radiating panel 6 is sufficiently cooled or heated, the damper 4 is switched to the panel flow path 8 side, and the cool / warm air of the air conditioner 2 flows to the panel flow path 8. Normally, when the damper 4 is switched, the radiant panel surface is not cooled or heated, and at the moment of switching, the indoor space A has an unpleasant temperature rise, but the surface of the radiant panel 6 has already been cooled or heated by the Coanda effect. Therefore, even if the damper 4 is switched, it can be switched smoothly without causing an unpleasant temperature rise.

By adopting the configuration as described above, a comfortable indoor space A with no airflow can be obtained in a short time.

  Further, the panel surface airflow generation means may be stored in a folded ceiling in order to improve the beauty.

(Embodiment 2)
FIG. 2 is a cross-sectional view of the ceiling when the radiant cooling and heating apparatus according to the second embodiment of the present invention is installed. In FIG. 2, A is an indoor space. Reference numeral 1 denotes a radiant cooling and heating device, 2 an air conditioner, 3 a flow path, 4 a damper, 5 a panel surface airflow generating means, 6 a radiation panel, 7 a suction port, and 8 a panel flow path.

  About the radiation | emission cooling and heating apparatus 1 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the cool / warm air cooled or heated by the air conditioner 2 passes through the flow path 3, passes through the damper 4, and passes through the panel surface airflow generation means 5, the portion that the panel surface airflow generation means 5 blows out is rounded. Thus, the cool / warm air is smoothly blown toward the radiating panel 6 without disturbing the air flow in the panel surface air flow generating means 5, and flows along the radiating panel 6. By adopting the above-described configuration, the airflow is not disturbed and the airflow does not hit the person, and the comfort is improved.

(Embodiment 3)
FIG. 3 shows a cross-sectional view of the ceiling when the radiant cooling and heating apparatus according to the third embodiment of the present invention is installed. In FIG. 3, A is an indoor space. 1 is a radiant cooling and heating device, 2 is an air conditioner, 3 is a flow path, 4 is a damper, 5 is a panel surface air flow generating means, 6 is a radiant panel, 7a is a counter-side suction port, and 8 is a panel flow path. .

  About the radiation | emission cooling and heating apparatus 1 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The cool / warm air cooled or heated by the air conditioner 2 passes through the flow path 3, passes through the damper 4, passes through the panel surface airflow generation means 5, and flows along the radiation panel 6. Then, the cool / warm air is introduced into the opposed suction port 7. At this time, the installation location of the suction port becomes important. If the suction port is not on the side opposite to the panel surface airflow generating means 5, the blown air is not introduced well, the airflow is disturbed and the airflow hits the person, and the comfort is lowered.

  As described above, the comfort is improved without further disturbing the air flow by installing the suction port in the opposed suction port 7 of the panel surface air flow generation means 5.

(Embodiment 4)
FIG. 4 shows a cross-sectional view of the ceiling when the radiant cooling and heating apparatus according to the fourth embodiment of the present invention is installed. In FIG. 3, A is an indoor space. 1 is a radiant cooling and heating device, 2 is an air conditioner, 3 is a flow path, 4 is a damper, 5 is a panel surface air flow generating means, 6 is a radiant panel, 7 is a counter-side suction port, 8 is a panel flow path, and 9 is a wind direction change. Consists of facing vanes.

  About the radiation | emission cooling and heating apparatus 1 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. When the air conditioner starts up, the cool / warm air cooled or heated by the air conditioner 2 passes through the flow path 3, passes through the damper 4, and is introduced into the indoor space A. At this time, the cool / warm air is blown out in the direction of the radiating panel 6 by the panel surface air flow generating means 5, passes along the surface of the radiating panel 6 by the Coanda effect, is sucked from the suction port 7 on the opposite side, and is radiated from the ceiling. 1 is introduced into the flow path 3 and circulated. At this time, the indoor space A is also cooled or heated by the convection of the blown air, and the radiating panel 6 is simultaneously cooled or heated.

  In this state, when the radiating panel 6 is sufficiently cooled or heated, the damper 4 is switched to the panel flow path 8 side, and the cool / warm air of the air conditioner 2 flows to the panel flow path 8 to cool or heat the radiating panel 6. And radiated air conditioning. Normally, when the damper 4 is switched, the radiant panel surface is not cooled or heated, and at the moment of switching, the indoor space A has an unpleasant temperature rise, but the surface of the radiant panel 6 has already been cooled or heated by the Coanda effect. Therefore, even if the damper 4 is switched, there is no unpleasant temperature rise and it can be switched smoothly.

  Furthermore, the direction of the airflow can be varied according to the user's preference, for example, when the airflow is changed or the heat is felt by installing the wind direction diverting blade 9 at the blowing portion of the panel surface airflow generating means 5.

  As described above, the radiant cooling and heating apparatus according to the present invention is a no-air-conditioning air-conditioning system in which the rise time of the ceiling radiant panel is short and the air does not hit a person, and thus comfort can be improved. .

Cross-sectional view of the ceiling part of the radiant cooling and heating apparatus according to Embodiment 1 of the present invention Cross-sectional view of the ceiling part of the radiant cooling and heating apparatus according to Embodiment 2 of the present invention Cross-sectional view of the ceiling part of the radiant cooling and heating apparatus according to Embodiment 3 of the present invention Cross-sectional view of the ceiling part of the radiant cooling and heating apparatus according to Embodiment 4 of the present invention A perspective view of the ceiling of a conventional ceiling radiant air conditioner Cross-sectional view of the ceiling of a conventional ceiling radiant air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS A Indoor space 1 Radiant cooling / heating apparatus 2 Air conditioner 3 Flow path 4 Damper 5 Panel surface air flow production | generation means 6 Radiation panel 7 Suction inlet 7a Opposite side suction inlet 8 Panel flow path 9 Wind direction change blade 10 Ceiling radiation cooling / heating apparatus 20 Ceiling radiation panel 20a Small hole 30 Air conditioner 40 Heat exchange pipe

Claims (4)

A radiant cooling and heating device, characterized in that panel surface airflow generating means is provided for flowing an airflow along the radiant panel surface. 2. The radiant cooling and heating apparatus according to claim 1, wherein the panel surface airflow generating means is provided with a round shape. The radiant cooling and heating apparatus according to claim 1 or 2, wherein a suction port is provided on the opposite side of the panel surface airflow generating means. The radiant cooling and heating apparatus according to any one of claims 1 to 3, wherein a wind direction diverting blade is provided at an air flow blowing portion of the panel surface air flow generating means.

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