JPH01131832A - Indoor air conditioner on outside wall - Google Patents

Abstract

PURPOSE:To obtain a uniform temperature distribution over the indoor side surface of the outside wall irrespective of seasons by installing an upper duct for both blow-off and air intake along the outside wall of a ceiling and providing a lower blow-off/air intake device on the floor along the outside wall. CONSTITUTION:In summer, a fixed air capacity device 13 and an opening/closing damper 18 of an entrance room 19 are full-opened while a fixed air capacity device 14 and an opening/closing damper 22 of an entrance room 23 are full-closed. Under the condition described above, an air conditioner 5 is operated for cooling service while an a blower 26 is operated so that an air suction device 4 may send a cooled wind discharged downward from an upper duct 2 for both blow-off and air suction along the outside wall into a suction filter device 20. In winter, the fixed air capacity device 14 and the damper 22 are full-opened while the fixed air capacity device 13 and the damper 18 are full-closed. Under this condition, the air conditioner 5 is operated for heating service while the blower 26 is operated so that a warm air discharged upward from the lower blow-off/suction device 4 along the outside wall surface may be sent to the suction filter device 20 by way of the duct 21. It is, therefore, possible to distribute a uniform air flow all over the outside wall inside the room in both summer and winter, and maintain a uniform temperature distribution on the outside wall surface.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention generates a nearly 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/cooling device in which the temperature distribution on the outside wall side of the room is made almost uniform.

[Prior art]

Conventionally, when heating or cooling the outer wall side of the indoor room 27 of a building, as shown in FIG. As shown in FIG. 15, a fan coil unit 32 is installed on the floor 31 on the outside wall side of the room 27. As shown in FIG. At the same time, the drain tube 33 is removed from the fan coil unit 32. The cold and hot water supply pipe 34° and the cold and hot water return pipe 35 are connected, hot air or cold air is blown upward from the air outlet at the top of the fan coil unit 32, and the blown hot air or cold air is sent to the fan coil unit 32.
A method such as sucking in from the bottom of the tank is adopted.

[Problems to be Solved by the Invention] In all of these systems, an outlet airflow and an intake airflow are generated from a fixed direction regardless of the summer or winter season, so that a uniform airflow is created on the indoor side of the outer wall. Since no distribution is formed, unevenness occurs in the temperature distribution, which is unfavorable in terms of the indoor environment.

For example, in the case of a method that blows 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 toward 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 therefore unfavorable for the indoor environment.

In addition, in the case of a method in which hot air is blown out 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 ceiling towards 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 wall. , unevenness occurs in the temperature distribution near the wall surface, which is therefore unfavorable for the indoor environment.

[Purpose and structure of the invention]

The object of the present invention is to provide an indoor external wall heating/cooling device that advantageously solves the above-mentioned problems and also provides other excellent effects. In this case, 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; A lower blow-off/suction device 4 having a blow-off/suction port 3 extending upward and opening upward is installed, and an air conditioning I! A heating/cooling air inlet 7 connected to the air inlet 5 via an air duct 6 and a clean return air inlet 9 connected to a clean return air chamber 8 are provided at the outlet of the mixing chamber 10. The first circulation chamber 11 and the second circulation chamber 12 are connected, and a first constant air volume device 13 is provided on the entrance side of the first circulation chamber 11 and the second circulation chamber 12, and the first constant air volume device 13 is completely closed when one is open. and a second constant air volume device 14 are provided, the first distribution chamber 11 is connected to the upper blow-off/suction duct 2 via a supply duct 15, and the second circulation chamber 12 is connected to the lower section via a duct 16. Entrance/exit port 1 of blowout/suction device 4
7 and is also connected to the inlet of the filter device 20 via a first inlet chamber 19 having an opening/closing damper 18, and the upper blow-off/suction duct 2 is connected to the return duct 21.
and a second inlet chamber 23 having an opening/closing damper 22 to the inlet of the filter device 20, and to the inlet 25 of the clean return air chamber 8 which is connected to the suction port of the air IIa5 via the intake duct 24. , the air-conditioning device on the outside wall side of a room is characterized in that the discharge side of the filter device 20 is connected via a blower 26.

〔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 at the inlet side of the mixing chamber 10. A variable air volume device (VAV) 36 consisting of a pair of dampers adjusted by an electric motor is provided, and the inlets of the first and second distribution chambers 11 and 12 which are vertically stacked are connected to the outlet of the mixing chamber 10. Furthermore, on the entrance side of the first circulation chamber 11, there is a first constant air volume device with a fully closing function, which consists of a pair of dampers adjusted by an electric motor with a speed reducer! (CAV)1
3 is provided, and a second constant air volume device (CAV) 14 with a fully closing function is provided on the inlet side of the second circulation chamber 12 and includes a pair of dampers adjusted by an electric motor with a speed reducer.

At the side of the mixing chamber 10, between said variable air volume device 36 and each constant air volume device 13, 14, a clean return air inlet 9 is provided.
A backflow prevention damper 37 is provided at the clean return air inlet 9, and a mixing chamber 10 having the heating/cooling air inlet 7 and the clean return air inlet 9, and a first The distribution chamber 11, the second distribution chamber 12, and the variable air volume device 36. First constant air volume device 13
゜Second constant air volume device 14. The backflow prevention damper 37 constitutes an air mixing switching supply bag M38, 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. ing.

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%
A first inlet blocker 19 is integrally provided on the other side of the flow chamber 11 and the second flow chamber 12 and is provided at the entrance of the filter device 20.
and the second inlet chamber 23 are connected, and further the first inlet block 1
9 is provided with an opening/closing damper 18 that is rotated by an electric motor with a reduction gear, and an opening/closing damper 22 that is rotated by an electric motor with a reduction gear is provided in the second entrance chamber 23. 22 are configured such that when one side is open, the other side is fully closed.

A communication opening 41 is provided between the first inlet blocker 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. A damper 44 adjusted by an electric motor with a speed reducer is provided at the position, and the air mixing switching supply device 38 and a first damper having an opening/closing damper are provided.
A purification mixing switching supply unit 45 is constituted by a filter device 20 connected to the inlet block 19 and the second inlet chamber 23, and a clean return air chamber 8 connected to the filter device 20 via a blower 26.

In the upper half of one end side of the casing 46 extending in the lateral direction, there is a plate 47 extending in the width direction of the casing, and a protrusion [48] extending from the center of the plate 47 toward the center of the end of the casing. , and an inclined plate 50 that extends obliquely from the tip of the protruding plate 48 toward the end of the back plate 49 of the casing, and is fixed to the lower half of the casing 46. A partition plate 52 extending from a position close to the middle lower part of the plate body 47 in the width direction to the middle part of the other end of the casing 46 in the width direction is fixed, and a partition plate 52 is fixed to the upper part of the casing 46 above the partition plate 52. A blowout/suction port 3 extending in the longitudinal direction of the casing is provided, and a blowout direction adjusting guide member 53 is attached to the blowout/suction port 3 such that its angle can be adjusted by a horizontal axis.

The vertical shaft 5 of the switching damper 57 is constructed by fixing two fuselage plates 55 and 56 to the vertical shaft 54 at an angular interval of 90".
4 is disposed close to the end of the partition plate 52 on the end partition member side, and the upper end of the vertical shaft 54 is a switching motor consisting of an electric motor with a speed reducer fixed to the end partition member 51. A plate-shaped cold air passing filter 60 is connected to the output shaft of the drive device 58 and is detachably 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, and 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. 12, 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, and as shown in FIG. As shown, when the switching damper 57 blocks the cold air distribution chamber 62 and the entrance/exit 17, the hot air distribution 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. 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 28 in the room. The purification mixing switching supply unit 45 is mounted and fixed on the ceiling 28, and is connected to the outlet 39 of the first distribution chamber 11 and the upper blow-off/suction duct 2.
is connected to the inlet of the upper blow-off/suction duct 2 via a supply duct 15, and furthermore, the outlet of the upper blow-off/suction duct 2 and the inlet 42 of the second inlet 23 are connected via a return duct 21.

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

When cooling indoor and outdoor walls, the first constant air volume device 13
The opening/closing damper 18 of the first inlet block 19 is opened, the second constant air volume device 14 and the opening/closing damper 22 of the second inlet 23 are fully closed, and the switching damper 57 in the lower blow-off/suction device 4 is opened. are arranged in the state shown in FIG.

In addition, when heating the indoor and outdoor walls, the second fixed landscape device 1if14 and the opening/closing damper 22 of the second entrance character 23
is opened, the first constant air volume device 13 and the opening/closing damper 18 of the first inlet blocker 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, approximately 12
°C cold air is sent through the air duct 6 to the variable air volume device 36 of the air mixing switching supply device 38, and the variable air volume device 36 adjusts the amount of cold air to provide the optimum room temperature. The cooled air and the clean return air from the clean return air chamber 8 (temperature: 26°C, for example) are mixed in the air mixing switching supply device 38, and the temperature is adjusted to a temperature that does not cause condensation, for example, about 15°C. be done.

Next, the temperature-adjusted cold air is passed through the first constant air volume device 13.
After the air volume is adjusted to a constant air volume, it passes through the first circulation chamber 11 and the supply duct 15 and is blown downward from the air outlet/suction port 1 of the upper air/suction duct 2.

The cold air blown from the air outlet/suction port 1 descends along the outer wall surface of the room 27, and then flows from the air outlet/suction port 3 in the lower air/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 62 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 block 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 is sucked into the air conditioner + 115 through the intake duct 24. At the same time, the remaining amount of clean return air (the amount obtained by subtracting the amount of air sucked into the intake duct 24 from the amount of air blown by the blower 26) from the clean return air chamber 8 is supplied to the air mixing switching supply device 38, and from the air conditioner 815. The amount of cold air sent to the air supply duct 6 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 bag W36 of the air mixing switching supply device 38. The volume of warm air adjusted to the optimum room temperature is adjusted to the volume of warm air and the clean return air from the clean return air chamber 8 is combined with the air mixing switching supply bag W3B.
The temperature is adjusted to approximately 30°C by mixing the mixture inside the container.

Next, the temperature-adjusted warm air is passed through the second constant air volume device 14.
After the air volume is adjusted to a constant air volume, the second circulation chamber 12. The air passes through the duct 16 and the hot air distribution chamber 61 of the lower blow-off/suction device 4 and is blown upward from the blow-off/suction port 3 .

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

The warm air blown out from the air outlet/suction port 3 rises along the outer wall surface of the room 27, 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 28. 1 into its duct 2 and subsequently through the return duct 21 and the second inlet 23 to the filter device 2
0, and indoor airborne dust in the return air is removed by the filter device 20.

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 is sucked into the air conditioner 5 through the intake duct 24. At the same time, the remaining amount of clean return air from the clean return air chamber 8 (the amount obtained by subtracting the amount of air sucked into the intake duct 24 from the amount of air blown by the blower 26) is supplied to the air mixing switching supply device 38, and the air conditioning The amount of hot air sent from the air conditioner 5 to the air supply duct 6 and the amount of clean return air sent from the intake duct 24 to the air conditioner 5 are set to be equal, thereby maintaining air balance.

If the cold air passage filter 60 is provided in the lower blow-out/suction device 4 as in the embodiment described above, the cold air in the cold air distribution chamber 62 will pass through the filter 60 and then be sucked into the duct 16. Even if the cold air sucked into the cold air distribution chamber 62 during cooling may contain indoor airborne dust, it is possible to reliably prevent the dust from adhering to the inside of the duct 16, and therefore the heating At this time, hot air containing dust is not blown out from the blow-off/suction port 3 of the lower blow-off/suction device 4.

When carrying out this invention, 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.
The filter 60 may be omitted.

〔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 character 19 are opened in summer, and the second constant air volume device 14 and the opening/closing damper 2 of the second inlet character 23 are opened.
2 is fully closed, the air conditioner 5 is operated for cooling and the blower 26 is operated, thereby blowing cold air downward along the outer wall surface from the upper blowing and suction duct 2 to the lower blowing and suction device 4. At the same time, the sucked cold air can be sent to the filter device 20, and in winter, the second constant air volume device 14 and the opening/closing damper 22 of the second inlet 23 are opened, and the first constant air volume device 13 is opened. With the opening/closing damper 18 of the first inlet chamber 19 fully closed, the air conditioner 5 is operated for heating and the blower 26 is operated, thereby blowing air upward from the lower blow/suction device 4 along the outer wall surface. At the same time, the hot air sucked in by the upper blow-off/suction duct 2 can be sent to the filter device 20. Therefore, the flow direction of cold air and hot air can be rationally changed between summer and winter. In addition to distributing airflow almost uniformly over the entire exterior wall of the room, the temperature distribution on the exterior wall side of the room can be maintained almost uniformly over the entire surface, and the filter device removes indoor airborne dust from the return air during heating and cooling. 20 to purify the return air. 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 in the mixing chamber 10 and the temperature is adjusted. The cold air is supplied to the upper blowing and suction duct 2, and in winter, warm air supplied from the air 11815 through the air supply duct 6 and clean return air at a lower temperature are mixed into the mixing chamber 1.
After being mixed and temperature-adjusted in the chamber IO, the temperature-adjusted warm air is supplied to the lower blow-out/suction bag W4, so during cooling, the temperature of the cold air supplied from the air conditioner 5 to the mixing chamber IO can be made relatively low, and the temperature of the warm air supplied from the air conditioner 5 to the mixing chamber 10 can be made relatively high during heating, so 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. The space occupied by 6 can be reduced, and the indoor 27
After the indoor suspended dust in the return air is removed by the filter device 20 to produce clean return air, a part of the clean return air is mixed with the heating and cooling air sent from the air conditioner 5. Effects such as improved cleanliness can be obtained.

[Brief explanation of the drawing]

1 to 13 show an 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 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. A perspective view, FIG. 4 is a schematic vertical 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. 6 is a line taken along line A-A in FIG. 5. 7 is a sectional view taken along the line B-B in FIG. 5, FIG. 8 is a sectional view taken along the line C-C in FIG. 5, and the ninth is a sectional view taken along the line D-D in FIG. 5.
Fig. 10 is a longitudinal sectional front view of the lower blow-off/suction device, Fig. 11 is a sectional view taken along line E-E in Fig. 10, and Fig. 12 is a F in Fig. 10.
-E line sectional view, 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 and suction port, 2 is an upper blowout and suction duct, 3 is a blowout and suction port, 4 is a lower blowout and suction device,
5 is an air conditioner, 6 is an air supply duct, 7 is an air inlet for heating and cooling,
8 is a clean return air chamber, 9 is a clean return air inlet,
10 is a mixing chamber, 11 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, 19 is a first inlet chamber, 20 is a filter device, and 21 is a return duct, 22 is an opening/closing damper, 21 is a return duct, 22 is an opening/closing damper, 23 is a second entrance chamber,
24 is an intake duct, 25 is an inlet, 26 is a blower, 27 is a room, 28 is a ceiling, 31 is a floor, 36 is a variable air volume device, 3
7 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, 5 is a switching drive device, 60 is a filter, 61 ? IA m flow ail, 62 is a cold air distribution room.

Claims (1)

[Claims] An upper blow-off/suction duct 2 having a blow-off/suction port 1 that extends along the outside wall and opens downward is installed on the ceiling on the outside wall side of the room, and extends along the outside wall on the floor on the outside wall side of the room. At the same time, a lower blow-off/suction device 4 having a blow-off/suction port 3 opening upward is installed, and a heating/cooling air inlet 7 and a cleaning air inlet connected to an air feed port of an air conditioner 5 via an air duct 6 are installed. 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 the air chamber 8. A first constant air volume device 13 and a second constant air volume device 14 are provided on the inlet side of the chamber 12, 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. Blowout and suction duct 2
The second circulation chamber 12 is connected to the inlet/outlet 17 of the lower blow-off/suction device 4 via a duct 16, and is connected to the filter device 20 via a first inlet chamber 19 having an opening/closing damper 18. The upper blow-off/suction duct 2 is connected to the inlet of the filter device 20 via a return duct 21 and a second inlet chamber 23 having an opening/closing damper 22, and is connected to the inlet of the air conditioner 5. The discharge side of the filter device 20 is connected to the inlet 25 of the clean return air chamber 8 connected via the intake duct 24 to the blower 26.
A heating/cooling device on the outside wall of a room, characterized in that it is connected via a.