JPH0318097B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for creating a substantially uniform airflow over the entire wall surface of an office or other room in a building, both in summer and winter. The present invention relates to a heating and cooling method in which temperature distribution on the outside wall side of a room is made almost uniform by generating heat.

[Prior art]

Conventionally, when heating or cooling the outer wall side of the indoor room 5 of a building, as shown in FIG. As shown in FIG. 15, a fan coil unit 10 is installed on the floor 9 on the outside wall side of the room 5, and the fan coil is The unit 10 has a drain outlet pipe 11, a cold and hot water supply pipe 12, and a cold and hot water return pipe 1.
3 are connected, hot or cold air is blown upward from the outlet at the top of the fan coil unit 10, and the blown hot or cold air is sucked in from the bottom of the fan coil unit 10.

[Problem that the invention seeks to solve]

In the case of these methods, the outlet airflow and intake airflow occur from a fixed direction regardless of the summer and winter seasons, and as a result, a uniform airflow distribution is not formed on the indoor side of the outer wall, resulting in uneven temperature distribution. occurs, which is unfavorable for the indoor environment.

For example, in the case of a method that blows cold air from the ceiling, when cold air is blown out in summer, the cold air with a heavy specific gravity reaches the floor from the ceiling along the wall surface, so the airflow distribution near the wall surface is almost uniform. In winter, warm air with a light specific gravity is blown from the ceiling towards the floor, so the blown warm air changes into an upward current before reaching the floor, resulting in a uniform airflow distribution near the wall. is not formed, unevenness occurs in the temperature distribution near the wall surface, which is unfavorable for the indoor environment.

In addition, in the case of a method in which hot air is blown from a fan coil unit on the floor, when hot air is blown out in winter, the warm air with a light specific gravity reaches the ceiling along the wall surface, so the airflow distribution near the wall surface is almost uniform. However, in the summer, heavy cold air is blown from the floor toward the ceiling, so the blown cold air turns into a downdraft before reaching the ceiling, and as a result, a uniform airflow distribution is not formed near the walls. Therefore, unevenness occurs in the temperature distribution near the wall surface, which is unfavorable for the indoor environment.

[Purpose and structure of the invention]

The object of the present invention is to provide a method for heating and cooling an indoor exterior wall that advantageously solves the above-mentioned problems. An upper blow-off/suction duct 2 having a blow-off/suction port 1 that extends along the outer wall and opens downward is installed, and a blow-out/suction duct 2 that extends along the outer wall and opens upward is installed on the floor of the room on the side of the outer wall. A lower blow-out/suction device 4 having a suction port 3 is installed, and the cold air blown downward from the upper blow-out/suction duct 2 during indoor cooling is sucked by the lower blow-out/suction device 4, and during indoor heating. The heating and cooling method for the outer wall side of a room is characterized in that hot air blown upward from the lower blowing and suction device 4 is sucked into the upper blowing and suction duct 2.

〔Example〕

Next, the present invention will be explained in detail using illustrated examples.

1 to 13 show an embodiment of the present invention, in which a heating and cooling air inlet 15 is provided at one end of a mixing chamber 14, and the mixing chamber 14
A variable air volume device VAV1 consisting of a pair of dampers adjusted by an electric motor with a reduction gear is installed on the inlet side of the interior.
6 is provided, and the first circulation chamber 17 is vertically superimposed.
The inlet of the second circulation chamber 18 is connected to the outlet of the mixing chamber 14, and a first constant damper with a fully closing function is provided on the inlet side of the first circulation chamber 17, which is composed of a pair of dampers adjusted by an electric motor with a speed reducer. An air volume device (CAV) 19 is provided, and a second distribution chamber 1
8 is provided with a second constant air volume device (CAV) 20 with a fully closing function, which is comprised of a pair of dampers adjusted by an electric motor with a speed reducer.

A clean return air inlet 21 is provided on the side of the mixing chamber 14 between the variable air volume device 16 and each constant air volume device 19, 20, and a backflow prevention damper 22 is provided in the clean return air inlet 21, A mixing chamber 14 having the heating/cooling air inlet 15 and a clean return air inlet 21, a first circulation chamber 17 and a second circulation chamber 18 connected to the mixing chamber 14, the variable air volume device 16, and a first constant An air mixing switching supply device 23 is constituted by the air volume device 19, the second constant air volume device 20, and the backflow prevention damper 22, and one side of the first constant air volume device 19 and the second constant air volume device 20 is open. When the other end is fully closed, the other end is fully closed.

An outlet 24 is provided on one side of the first circulation chamber 17, an inlet/outlet 25 is provided on one side of the second circulation chamber 18, and a filter device 26 with a DOP of 80% is connected to the first circulation chamber 17 and A first inlet chamber 27 and a second inlet chamber 28 are connected to the inlet of the filter device 26, and are connected to the first inlet chamber 27 by an electric motor with a speed reducer. Opening/closing damper 2
9 is provided, and an opening/closing damper 30 is provided in the second entrance chamber 28 and is rotated by an electric motor with a reduction gear.
are provided, and the opening/closing dampers 29, 30 are provided with:
The structure is such that when one side is open, the other side is fully closed.

A communication opening 31 is provided between the first inlet chamber 27 and the second circulation chamber 18, an inlet 32 is provided in the second inlet chamber 28, and a clean return air is provided at the side of the mixing chamber 14. A chamber 33 is provided integrally,
Further, the discharge side of the filter device 26 and the inlet 34 of the clean return air chamber 33 are connected to a blower 35 with a constant air volume.
A damper 37 is provided in the clean return air chamber 33 at a position opposite to the outlet 36 and is adjusted by an electric motor with a speed reducer. A purification mixing switching supply unit 38 is constituted by a filter device 26 connecting the first inlet chamber 27 and the second inlet chamber 28, and a clean return air chamber 33 connected to the filter device 26 via a blower 35. .

A plate body 4 extending in the width direction of the casing is provided in the upper half of the one end side of the casing 39 extending in the transverse direction.
0, a protruding plate 41 that protrudes from the center of the plate 40 toward the center of the casing end, and a protruding plate 41 that extends obliquely from the tip of the protruding plate 41 toward the end of the back surface 42 of the casing. An end partition member 44 consisting of an inclined plate 43 is fixed to the lower half of the casing 39 from a position close to the middle lower part of the plate 40 in the width direction to a middle part of the other end of the casing 39 in the width direction. A partition plate 45 is fixed to the upper part of the casing 39, and an air outlet/suction port 3 is provided at the top of the casing 39 and extends in the longitudinal direction of the casing above the partition plate 45. A direction adjustment guide member 46 is attached to the horizontal axis so that the angle can be adjusted.

In the switching damper 50, which is constructed by fixing two plates 48 and 49 to the vertical shaft 47 at an angular interval of 90 degrees, the vertical shaft 47 is close to the end of the partition plate 45 on the end partition member side. The upper end of the vertical shaft 47 is connected to a switching drive device 5 consisting of an electric motor with a speed reducer fixed to the end partition member 44.
1, and a plate-shaped cold air passing filter 53 is detachably interposed and fixed between the inclined plate 43 and the bottom plate 52 of the casing 39. An entrance/exit 54 is provided at one end of the casing 39.
A hot air circulation chamber 55 and a cold air circulation chamber 56 are defined in the lower half of the casing 39 by the partition plate 45, as shown in FIG.
When the hot air distribution chamber 55 and the entrance/exit 54 are cut off by the switching damper 50, the cold air distribution chamber 56 and the entrance/exit 54 are connected via the filter 53.
Further, as shown in FIG. 13, when the cold air distribution chamber 56 and the entrance/exit 54 are cut off by the switching damper 50, the hot air distribution chamber 55 is directly connected to the entrance/exit 54.

The casing 39 and the parts provided therein constitute a switchable lower blow-off/suction device 4, and the lower blow-off/suction device 4 is arranged in the room 5 so as to extend along the waist wall of the outer wall. An upper air outlet/suction duct 2 having an air outlet/inlet 1 extending along the outer wall and opening downward is fixed to the outer wall side of the ceiling 6 in the room. The purification mixing switching supply unit 38 is mounted and fixed on the ceiling 6, and the outlet 24 of the first distribution chamber 17 and the inlet of the upper blow-off/suction duct 2 are connected via a supply duct 57, and the upper The outlet of the blow-off/suction duct 2 and the inlet 32 of the second inlet chamber 28 are connected via a return duct 58.

The inlet/outlet 54 of the lower blow-off/suction device 4 and the inlet/outlet 25 of the second distribution chamber 18 are connected via a duct 59, and the air mixing/switching supply device 23 is connected to an air inlet of an air conditioner 60 installed outdoors. The air inlet 15 for heating and cooling is connected to the air supply duct 61, and the outlet 36 of the clean return air chamber 33 and the air intake port of the air conditioner 60 are connected to the air intake duct 62.
connected via.

When cooling the indoor and outdoor walls, the first constant air volume device 19 and the opening/closing damper 29 of the first entrance chamber 27 are opened, and the second constant air volume device 20 and the opening/closing damper 30 of the second entrance chamber 28 are opened. is fully closed, and the switching damper 50 in the lower blow-off/suction device 4 is placed in the state shown in FIG.

In addition, when heating indoor and outdoor walls, the second constant air volume device 20 and the opening/closing damper 30 of the second entrance chamber 28 are opened, and the first constant air volume device 1
9 and the opening/closing damper 29 of the first inlet chamber 27 are fully closed, and the switching damper 50 in the lower blow-off/suction device 4 is placed in the state shown in FIG.

When using the heating/cooling device configured as described above to cool indoor and outdoor walls in the summer, cold air of about 12°C is sent from the air conditioner 60 to the air mixing switching supply device 23 via the air supply duct 61. Variable air volume device 1
6, and the variable air volume device 16 adjusts the amount of cold air to provide the optimum room temperature, and the volume-adjusted cold air and the clean return air from the clean return air chamber 33 (e.g., temperature 26°C) are By mixing in the air mixing switching supply device 23, the temperature is adjusted to a temperature that does not cause dew condensation, for example, about 15°C.

Next, the temperature-adjusted cold air is adjusted to a constant air volume by the first constant air volume device 19, and then passes through the first distribution chamber 17 and the supply duct 57 from the air outlet/suction port 1 of the upper air/suction duct 2. It is blown out downward.

The cold air blown out from the blowout/suction port 1 descends along the outer wall surface of the room 5, and then flows from the blowout/suction port 3 in the lower blowout/suction device 4 installed along the waist wall of the room. Indoor suspended dust is removed when the air is sucked into the cold air distribution chamber 56 and then passes through the filter 53.

The air that has passed through the filter 53 is returned to the filter device 26 through the duct 59, the second circulation chamber 18 and the first inlet chamber 27, and the indoor airborne dust in the return air is completely removed by the filter device 26. Ru.

Next, the clean return air after dust removal is sent to the clean return air chamber 33 by a blower 35 with a constant air volume.
A part of the clean return air from the clean return air chamber 33 is sucked into the air conditioner 60 via the intake duct 62, and the remaining air volume (from the air flow rate of the blower 35) is The amount of clean return air (the amount obtained by subtracting the air volume sucked into the duct 62) is supplied to the air mixing switching supply device 23, and from the air conditioner 60 to the air supply duct 61.
The amount of cold air sent to the air conditioner 6 from the intake duct 62
The amount of clean return air sent to 0 and the amount of clean return air are set equal to each other to maintain air balance.

When heating indoor and outdoor walls in winter, warm air at about 35°C from the air conditioner 60 is sent through the air duct 61 to the variable air volume device 16 of the air mixing switching supply device 23. The volume of warm air adjusted to the optimum room temperature is mixed with the clean return air from the clean return air chamber 33 in the air mixing/switching supply device 23. The temperature is adjusted to ℃.

Next, the temperature-adjusted warm air is adjusted to a constant air volume by the second constant air volume device 20, and is then blown out through the second distribution chamber 18, the duct 59, and the hot air distribution chamber 55 of the lower blowing/suction device 4. The liquid is blown upward from the suction port 3.

In this case, thermal radiation from the casing 39 of the lower blow-off/suction device 4 prevents the temperature of the waist wall portion from decreasing.

The warm air blown out from the air outlet/suction port 3 rises along the outer wall surface of the room 5, and then passes through the air outlet/suction port of the upper air outlet/suction duct 2 installed along the outer wall side of the ceiling 6. 1 into its duct 2 and subsequently returned through a return duct 58 and a second inlet chamber 28 to a filter device 26 by which indoor airborne dust in the return air is removed.

Then, the clean return air after dust removal is
A clean return air chamber 3 is created by a blower 35 with a constant air volume.
A part of the clean return air from the clean return air chamber 33 is sucked into the air conditioner 60 via the intake duct 62, and the remaining air volume (from the air flow rate of the blower 35) is The amount of clean return air (the amount obtained by subtracting the amount of air sucked into the intake duct 62) is supplied to the air mixing switching supply device 23, and is transferred from the air conditioner 60 to the air supply duct 61.
The amount of hot air sent to the air conditioner 6 from the intake duct 62
The amount of clean return air sent to 0 and the amount of clean return air are set equal to each other to maintain air balance.

If the cold air passage filter 53 is provided in the lower blow-out/suction device 4 as in the embodiment, the cold air in the cold air distribution chamber 56 passes through the filter 53 and then is sucked into the duct 59. During cooling, even if the cold air sucked into the cold air distribution chamber 56 contains indoor airborne dust, the duct 59
Therefore, during heating, hot air containing dust is not blown out from the blow-off/suction port 3 of the lower blow-off/suction device 4. do not have.

When carrying out this invention, the hot air and cold air blown into the room are purified through the filter device 26 and the filter of the air conditioner 60 before being blown into the room, so the filter 53 may be omitted. good.

〔Effect of the invention〕

According to this invention, an upper blow-off/suction duct 2 having a blow-off/suction port 1 extending along the outside wall and opening downward is installed on the ceiling on the outside wall side of the room, and installed on the floor on the outside wall side of the room. A lower blow-off/suction device 4 having a blow-off/suction port 3 extending along the outer wall and opening upward is installed, and the cold air blown downward from the upper blow-off/suction duct 2 during room cooling is sent to the The lower blow-out/suction device 4 sucks in warm air, and the upper blow-out/suction duct 2 sucks in warm air blown upward from the lower blow-in/suction device 4 during indoor heating, so that cold air and warm air can be generated in summer and winter. By rationally converting the flow direction of
It is possible to distribute the airflow substantially uniformly over the entire surface of the exterior wall of the room, and to maintain the temperature distribution on the exterior wall surface of the room substantially uniformly over the entire surface of the room.

[Brief explanation of the drawing]

1 to 13 show one embodiment of the present invention, in which FIG. 1 is a partially cutaway perspective view showing a heating and cooling device on the outside wall side of the room, and FIG. 2 is a purification system shown in FIG. FIG. 3 is a partially cutaway perspective view showing an enlarged view of the mixing switching supply unit and the upper blow-off/suction duct connected thereto; FIG. 3 is a partially cut-away view showing the lower blow-off/suction device and duct in FIG. A perspective view, FIG. 4 is a schematic longitudinal sectional side view showing the arrangement of the heating and cooling device on the outside wall side of the room, FIG. 5 is a cross-sectional plan view of the purification mixing switching supply unit, and FIG. 7 is a sectional view taken along line B-B in FIG. 5, FIG. 8 is a sectional view taken along line C-C in FIG. 5, FIG. 9 is a sectional view taken along line D-D in FIG. The figure is a longitudinal sectional front view of the lower blow-off and suction device, and Figure 11 is E in Figure 10.
-E line sectional view, FIG. 12 is a sectional view taken along line FF in FIG. 10, and FIG. 13 is a cross-sectional plan view showing a state in which the switching damper is switched from the state shown in FIG. 12.
FIGS. 14 and 15 are vertical side views showing a conventional indoor heating/cooling system on the outside wall side. In the figure, 1 is the air outlet and suction port, 2 is the upper air outlet and suction duct, 3 is the air outlet and suction port, 4 is the lower air outlet and suction device, 5 is the room, 6 is the ceiling, 9 is the floor, 1
4 is a mixing chamber, 15 is an air inlet for heating and cooling, 16 is a variable air volume device, 17 is a first distribution chamber, 18 is a second distribution chamber, 19 is a first constant air volume device, 20 is a second constant air volume device, 21 is a clean return air inlet, 22 is a backflow prevention damper, 23 is an air mixing switching supply device, 24
25 is an outlet, 26 is a filter device,
27 is a first entrance chamber, 28 is a second entrance chamber, 29 and 30 are opening/closing dampers, 31 is a communication opening,
32 is an inlet, 33 is a clean return air chamber, 34 is an inlet, 35 is a blower, 36 is an outlet, 37 is a damper, 38 is a purification mixing switching supply unit, 39 is a casing, 44 is an end partition member, and 45 is a partition plate. ,
50 is a switching damper, 51 is a switching drive device, 5
3 is a filter, 54 is an entrance, 55 is a hot air distribution room, 56 is a cold air distribution room, 57 is a supply duct, 58
is the return duct, 59 is the duct, 60 is the air conditioner, 6
1 is an air supply duct, and 62 is an intake duct.

Claims (1)

[Claims] 1 Install an upper blow-off/suction duct 2 having a blow-off/suction port 1 that extends along the outside wall and opens downward on the ceiling on the outside wall side of the room, and install it on the floor on the outside wall side of the room along the outside wall. A lower blow-off/suction device 4 having an elongated blow-off/suction port 3 that opens upward is installed, and during room cooling, cold air blown downward from the upper blow-off/suction duct 2 is transferred to the lower blow-off/suction device. 4, and the warm air blown upward from the lower blow-off/suction device 4 during room heating is sucked into the upper blow-off/suction duct 2.