JPH0318098B2 - - 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. This invention relates to a heating and cooling device that generates heat to make the temperature distribution on the outside wall of the room substantially uniform.

[Prior art]

Conventionally, when heating or cooling the outer wall side of the indoor room 27 of a building, as shown in FIG.
A system in which hot or cold air is sent from an air conditioner to an upper blow-off duct 29 provided on the outer wall side of the ceiling 28, and hot or cold air is blown downward from a blow-off port 30 of the upper blow-off duct 29, as shown in FIG. In addition, a fan coil unit 32 is installed on the floor 31 on the outside wall side of the room 27, and the fan coil unit 32 is equipped with a drain pipe 33, a cold and hot water supply pipe 34,
A method is adopted in which a cold/hot water return pipe 35 is connected, hot or cold air is blown upward from an outlet at the top of the fan coil unit 32, and the blown hot or cold air is sucked in from the bottom of the fan coil unit 32. ing.

[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 an indoor exterior wall heating and cooling device that advantageously solves the above-mentioned problems and also provides other excellent effects.
The gist of this invention is that 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 side of the outside wall of the room; A lower blow-off/suction device 4 having a blow-off/suction port 3 that extends along the outer wall and opens upward is installed on the floor of the building, and is connected to the air feed port of the air conditioner 5 via an air duct 6. A first circulation chamber 11 and a second circulation chamber 12 are connected to the outlet of the mixing chamber 10, which includes a heating and cooling air inlet 7 and a clean return air inlet 9 connected to a clean return air chamber 8. A first constant air volume device 13 and a second constant air volume device 14 are provided on the entrance sides of the first distribution chamber 11 and the second distribution chamber 12, and the first constant air volume device 13 and the second constant air volume device 14 are completely closed when one is open. is connected to the upper blow-off/suction duct 2 via the supply duct 15, and the second circulation chamber 12 is connected to the inlet/outlet 17 of the lower blow-off/suction device 4 via the duct 16, and is connected to the opening/closing duct 2. It is connected to the inlet of a filter device 20 via a first inlet chamber 19 having a damper 18, and the upper blow-off/suction duct 2 is connected to the filter device 20 via a return duct 21 and a second inlet chamber 23 having an opening/closing damper 22. connected to the inlet of the device 20, the air conditioner 5
The discharge side of the filter device 20 is connected via a blower 26 to the inlet 25 of the clean return air chamber 8, which is connected to the inlet of the air chamber 8 via an intake duct 24. It's in the cooling system.

〔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 7 is provided at one end of a mixing chamber 10, and a deceleration air inlet 7 is provided on the inlet side of the mixing chamber 10. Variable air volume device (VAV) consisting of a pair of dampers adjusted by an electric motor
36 are provided and the first circulation chamber 1 is vertically superimposed.
The entrances of the first and second circulation chambers 12 are connected to the mixing chamber 10.
Further, a first constant air volume device (CAV) 13 with a fully closing function consisting of a pair of dampers adjusted by an electric motor with a speed reducer is provided on the inlet side of the first distribution chamber 111, and the second distribution chamber 111 is connected to the outlet of the second distribution chamber 111. Room 1
A second constant air volume device (CAV) 14 with a fully closing function, which is comprised of a pair of dampers adjusted by an electric motor with a speed reducer, is provided on the inlet side of the air conditioner 2.

A clean return air inlet 9 is provided on the side of the mixing chamber 10 between the variable air volume device 36 and each constant air volume device 13, 14, and the clean return air inlet 9 is provided with a backflow prevention damper 37,
A mixing chamber 10 having the heating/cooling air inlet 7 and the clean return air inlet 9, and a first circulation chamber 11 and a second circulation chamber 12 connected to the mixing chamber 10.
and the variable air volume device 36 and the first constant air volume device 1.
3. Second constant air volume device 14, backflow prevention damper 37
Thus, an air mixing switching supply device 38 is constructed, and the first constant air volume device 13 and the second constant air volume device 14 are configured such that when one is open, the other is fully closed.

An outlet 39 is provided on one side of the first circulation chamber 11, and an inlet/outlet 40 is provided on one side of the second circulation chamber 12, and the filter device 20 with a DOP of 80% is connected to the first circulation chamber 11 and A first inlet chamber 19 and a second inlet chamber 23 are integrally provided on the other side of the second circulation chamber 12, and a first inlet chamber 19 and a second inlet chamber 23 are connected to the inlet of the filter device 20. Opening/closing damper 1
8 is provided, and an opening/closing damper 22 is provided in the second entrance chamber 23 and is rotated by an electric motor with a reduction gear.
are provided, and each of the opening/closing dampers 18, 22
are configured such that when one is open, the other is fully closed.

A communication opening 41 is provided between the first inlet chamber 19 and the second circulation chamber 12, an inlet 42 is provided in the second inlet chamber 23, and a clean return air is provided at the side of the mixing chamber 10. A chamber 8 is integrally provided, and the discharge side of the filter device 20 and the inlet 25 of the clean return air chamber 8 are connected by a blower 26 with a constant air volume, and inside the clean return air chamber 8,
A damper 44 adjusted by an electric motor with a speed reducer is provided at a position facing the outlet 43, and a filter connects the air mixing switching supply device 38 to a first inlet chamber 19 and a second inlet chamber 23 each having an opening/closing damper. The device 20 and the clean return air chamber 8 connected to the filter device 20 via the blower 26 constitute a purification mixing switching supply unit 45.

A plate body 4 extending in the width direction of the casing is disposed in the upper half of the one end side of the casing 46 extending in the transverse direction.
7, a protruding plate 48 protruding from the center of the plate 47 toward the center of the casing end, and a slope extending diagonally from the tip of the protruding plate 48 toward the end of the back surface 49 of the casing. An end partition member 51 consisting of a plate 50 is fixed to the lower half of the casing 46, and extends from a position close to the middle lower part of the plate 47 in the width direction to the middle part of the other end of the casing 46 in the width direction. A partition plate 52 extending up to An adjustment guiding member 53 is attached so as to be adjustable in angle by a horizontal axis.

In the switching damper 57, which is constructed by fixing two plates 55 and 56 to the vertical shaft 54 at an angular interval of 90 degrees, the vertical shaft 54 is close to the end of the partition plate 52 on the end partition member side. The upper end of the vertical shaft 54 is connected to a switching drive device 5 consisting of an electric motor with a speed reducer fixed to the end partition member 51.
Further, a plate-shaped cold air passing filter 60 is removably interposed and fixed between the inclined plate 50 and the bottom plate 59 of the casing 46 . An entrance/exit 17 is provided at one end of the casing 46.
A hot air circulation chamber 61 and a cold air circulation chamber 62 are defined in the lower half of the casing 46 by the partition plate 52, as shown in FIG.
When the hot air distribution chamber 61 and the entrance/exit 17 are cut off by the switching damper 57, the cold air distribution chamber 62 and the entrance/exit 17 are connected via the filter 60.
Further, as shown in FIG. 13, when the switching damper 57 blocks the cold air circulation chamber 62 and the entrance/exit 17, the hot air circulation chamber 61 is directly connected to the entrance/exit 17.

The casing 46 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 27 so as to extend along the waist wall of the outer wall. It is installed on the floor 31 in a state that is
An upper blow-off/suction duct 2 having a blow-off/suction port 1 extending along the outer wall and opening downward is fixed to the outer wall side of the 8, and the purification/mixing switching supply unit 45 is placed on the ceiling 28. The outlet 39 of the first circulation chamber 11 and the inlet of the upper blow-off/suction duct 2 are connected via the supply duct 15, and the outlet of the upper blow-off/suction duct 2 and the inlet of the second inlet chamber 23 are connected to each other via the supply duct 15. It is connected to the inlet 42 via the return duct 21.

The inlet/outlet 17 of the lower blow-off/suction device 4 and the inlet/outlet 40 of the second distribution chamber 12 are connected via a duct 16, and the air mixing/switching supply device 38 is connected to the air inlet of the air conditioner 5 installed outdoors. The air inlet 7 for heating and cooling is connected via an air supply duct 6, and the outlet 43 of the clean return air chamber 8 and the intake port of the air conditioner 5 are connected via an intake duct 24.

When cooling the indoor and outdoor walls, the first constant air volume device 13 and the opening/closing damper 18 of the first entrance chamber 19 are opened, and the second constant air volume device 14 and the opening/closing damper 22 of the second entrance chamber 23 are opened. is fully closed, and the switching damper 57 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 14 and the opening/closing damper 22 of the second entrance chamber 23 are opened, and the first constant air volume device 1
3 and the opening/closing damper 18 of the second inlet chamber 19 are fully closed, and the switching damper 57 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 approximately 12°C from the air conditioner 5 is sent to the air mixing switching supply device 38 via the air supply duct 6. The variable air volume device 36 adjusts the amount of cold air to provide the optimum room temperature, and the adjusted cold air and the clean return air from the clean return air chamber 8 (for example, the temperature 26 By mixing in the air mixing/switching supply device 38, 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 13, and then passes through the first distribution chamber 11 and the supply duct 15 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 27, and then flows from the blowout/suction port 3 in the lower blowout/suction device 4 installed along the waist wall of the room. Cold air distribution room 62
Indoor airborne dust is removed when the dust is sucked into the filter 60 and then passes through the filter 60.

The air that has passed through the filter 60 is returned to the filter device 20 through the duct 16, the second circulation chamber 12 and the first inlet chamber 19, and the indoor airborne dust in the return air is completely removed by the filter device 20. Ru.

The clean return air after dust removal is then sent to the clean return air chamber 8 by the blower 26 with a constant air volume, and a part of the clean return air from the clean return air chamber 8 passes through the intake duct 24 to the air conditioner 5.
At the same time, the clean return air chamber 8
Clean return air of the remaining air volume (amount obtained by subtracting the air volume sucked into the intake duct 24 from the air volume of the blower 26) is supplied to the air mixing switching supply device 38, and is sent from the air conditioner 5 to the air supply duct 6. The amount of cold air and the amount of clean return air sent from the intake duct 24 to the air conditioner 5 are set equal to maintain air balance.

When heating indoor and outdoor walls in winter, warm air at about 35°C from the air conditioner 5 is sent through the air duct 6 to the variable air volume device 36 of the air mixing switching supply device 38. The volume of warm air adjusted to the optimum room temperature is mixed with the clean return air from the clean return air chamber 8 in the air mixing/switching supply device 38. 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 14, and then blown out through the second distribution chamber 12, the duct 16, and the hot air distribution chamber 61 of the lower blowing/suction device 4. The liquid is blown upward from the suction port 3.

In this case, the temperature of the waist wall portion is prevented from decreasing due to thermal radiation from the casing 46 of the lower blow-off/suction device 4.

The hot air blown out from the air outlet/intake port 3 rises along the outer wall surface of the room 27 and then reaches the ceiling 28.
The air is sucked into the duct 2 from the air outlet/intake port 1 of the upper air/suction duct 2 installed along the outer wall side of the duct 2, and then passes through the return duct 21 and the second inlet chamber 23 to the filter device 20. The indoor airborne dust in the return air is removed by the filter device 20.

Then, the clean return air after dust removal is
A clean return air chamber 8 is created by a blower 26 with a constant air volume.
A part of the clean return air from the clean return air chamber 8 is sucked into the air conditioner 5 through the intake duct 24, and the remaining air volume (from the air flow rate of the blower 26) is The amount of clean return air (the amount minus the amount of air sucked into the duct 24) is supplied to the air mixing switching supply device 38, and the amount of warm air sent from the air conditioner 5 to the air supply duct 6 and the amount of warm air sent from the intake duct 24 to the air conditioner 5 are supplied to the air mixing switching supply device 38. The amount of clean return air that is generated is set equal to the amount of clean return air, and air balance is maintained.

If the cold air passage filter 60 is provided in the lower blow-out/suction device 4 as in the embodiment, the cold air in the cold air distribution chamber 62 passes through the filter 60 and then is sucked into the duct 16. During cooling, even if the cold air sucked into the cold air distribution chamber 62 contains indoor airborne dust, the duct 16
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 20 and the filter of the air conditioner 5 before being blown into the room, so the filter 60 may be omitted. good.

〔Effect of the invention〕

According to this invention, the first constant air volume device 13
and the opening/closing damper 18 of the first inlet chamber 19 are opened, and the second constant air volume device 14 and the second inlet chamber 2 are opened.
By operating the air conditioner 5 for cooling and operating the blower 26 with the opening/closing damper 22 of No. 3 fully closed, the cold air blown downward from the upper blow-off/suction duct 2 along the outer wall surface is directed to the lower part. The blow-out/suction device 4 sucks in cold air, and the sucked cold air can be sent to the filter device 20. In winter, the second constant air volume device 14 and the damper 22 for opening/closing the second inlet chamber 23 are opened, and the second 1 Constant air volume device 13 and damper 1 for opening and closing the first inlet chamber 19
8 is fully closed, the air conditioner 5 is operated for heating and the blower 26 is operated, thereby blowing warm air upward along the outer wall surface from the lower blowing/suction device 4 to the upper blowing/suction duct. At the same time, the hot air is sucked in by the filter device 2.
Therefore, the flow direction of cold air and hot air can be rationally changed between summer and winter, and the airflow can be distributed almost uniformly over the entire exterior wall of the room. Temperature distribution can be maintained substantially uniform over the entire surface, and indoor airborne dust in the return air can be removed by the filter device 20 during heating and cooling, thereby purifying the return air. In addition, in the summer, the cold air supplied from the air conditioner 5 through the air supply duct 6 and the clean return air at a higher temperature are mixed into the mixing chamber 1.
After being mixed and temperature-adjusted in the air conditioner 5, the temperature-adjusted cold air is supplied to the upper blow-out/suction duct 2, and in winter, the temperature-adjusted cold air is supplied from the air conditioner 5 through the air supply duct 6. After the wind and clean return air at a lower temperature than that are mixed in the mixing chamber 10 and the temperature is adjusted, the temperature-adjusted warm air is supplied to the lower blowing and suction device 4, so when cooling The temperature of the cold air supplied from the air conditioner 5 to the mixing chamber 10 can be made relatively low, and
During heating, the temperature of the warm air supplied from the air conditioner 5 to the mixing chamber 10 can be made relatively high, and therefore the amount of air sent from the air conditioner can be reduced.
The blower in the air conditioner can be made small in capacity and inexpensive, and the operating power cost of the blower can be reduced, and the cross section of the air duct 6 can be made small and manufactured at low cost. Furthermore, after the indoor airborne dust in the return air from the room 27 is removed by the filter device 20 to produce clean return air, a part of the clean return air is transferred from the air conditioner 5. Since it mixes with the air for heating and cooling that is sent, effects such as improving the cleanliness of indoor air can be obtained.

[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 a blowout/suction port, 2 is an upper blowout/suction duct, 3 is a blowout/suction port, 4 is a bottom blowout/suction device, 5 is an air conditioner, 6 is an air supply duct, and 7
8 is the air inlet for heating and cooling, 8 is the clean return air chamber,
9 is a clean return air inlet, 10 is a mixing chamber, 11
12 is a first distribution chamber, 12 is a second distribution chamber, 13 is a first constant air volume device, 14 is a second constant air volume device, 15 is a supply duct, 16 is a duct, 17 is an entrance/exit, 18 is an opening/closing damper, and 19 is a A first entrance chamber, 20 a filter device, 21 a return duct, 22 an opening/closing damper, 21 a return duct, 22 an opening/closing damper,
23 is the second entrance chamber, 24 is the intake duct, 25 is the entrance, 26 is the blower, 27 is the room, 28 is the ceiling, 3
1 is a floor, 36 is a variable air volume device, 37 is a backflow prevention damper, 38 is an air mixing switching supply device, 41 is a communication opening, 44 is a damper, 45 is a purification mixing switching supply unit, 51 is an end partition member, 52 is a partition plate, 57 is a switching damper, 58 is a switching drive device, 60 is a filter, 61 is a hot air distribution room, 62
is a cold air distribution room.

Claims (1)

[Claims] 1. An upper blow-out/suction duct 2 having a blow-out/suction port 1 extending along the outer 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 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 a heating/cooling air inlet 7 connected to an air feed port of an air conditioner 5 via an air duct 6.
A first circulation chamber 11 and a second circulation chamber 12 are connected to the outlet of the mixing chamber 10, which has a clean return air inlet 9 connected to a clean return air chamber 8. 2 distribution room 12
A first constant air volume device 13 and a second constant air volume device 14 are provided on the inlet side of the chamber, and the first constant air volume device 13 and the second constant air volume device 14 are provided so that when one is open, the other is fully closed. The second circulation chamber 12 is connected to the inlet/outlet 17 of the lower blow-off/suction device 4 via the duct 16, and has a first inlet chamber 19 having an opening/closing damper 18. The upper blow-off and suction duct 2 is connected to the inlet of the filter device 20 through a second duct having a return duct 21 and an opening/closing damper 22.
The air intake duct 24 is connected to the inlet of the filter device 20 via the inlet chamber 23 and connected to the inlet of the air conditioner 5.
A heating/cooling device for an indoor outer wall side, characterized in that the discharge side of a filter device 20 is connected via a blower 26 to an inlet 25 of a clean return air chamber 8 which is connected via a blower 26.