JPH0719526A - All air-conditioning system in room and ventilating and air-conditioning unit therefor - Google Patents

Abstract

PURPOSE:To permit comfortable air conditioning, such as all ventilation of indoor air and outdoor air, circulation as well as supplying of indoor air, outside air cooling and the like, with a substantially even distribution all over the inside of a room. CONSTITUTION:A total air-conditioning system is constituted of a ventilating unit AR, in which an air supplying chamber, an air sending chamber, an outside air introducing chamber, a ventilating chamber, an air supplying and ventilating fan, an outside air fan and a cold/hot- water heat exchanging coil are arranged in a machine, an air discharging damper is arranged between the air supplying chamber and an air discharging space, an outside air introducing damper is arranged between the outside air introducing chamber and the ventilating chamber and an air circulating damper is arranged between the air supplying chamber and the ventilating space respectively, and an air-conditioning unit AC, in which an air circulating chamber, an outside air introducing chamber, an air discharging chamber, an air sending chamber are arranged in the machine while an all heat exchanger chamber, an air circulating and discharging fan, a fan for outside air, a total heat exchanger, a cold/hot-water heat exchanging coil, a humidifier and the like are arranged at the center of the machine and whose object is waste heat recovery and ventilation. Both units AR, AC are arranged in a ceiling so as to keep good balance in the sets of installation while the units AR, AC are operated simultaneously whereby the whole of the inside of a room can be air-conditioned evenly substantially.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed on a ceiling in a room such as a building, and is used for total ventilation of indoor air and fresh outdoor air, return of indoor air, direct cooling by outside air as well as air supply, etc. The present invention relates to an indoor air-conditioning system and its ventilation and air-conditioning units, which are designed to distribute comfortable air-conditioning in accordance with the environment in a substantially balanced manner throughout the room.

[0002]

2. Description of the Related Art Conventionally, as an air conditioning means in a room, an air conditioner dedicated to returning indoor air and supplying air is installed at an appropriate place such as a ceiling in the room. In addition, not only the area and population density of the room, but also the same room such as warm, cold, and humidity, depending on the location, the condition of the ratio of supply and supply differs, and even if one or several air conditioners are installed, the entire room It was very difficult to perform air conditioning in a substantially balanced manner under the same conditions. Moreover, in the case of using these air conditioning systems, the structure of each air conditioner did not have a function for introducing the outside air, so that, for example, an intermediate period of four seasons requiring outside air cooling, that is, 6
-It is completely impossible structurally to obtain direct air-conditioning, which is required in the July term.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned imbalance in air-conditioning development in the same room, and is provided with a ventilation unit having an indoor circulation operation function, a waste heat treatment and an outside air cooling function. By equipping the required number of air-conditioning units in advance according to the indoor conditions and operating them simultaneously, balanced air-conditioning deployment in the room can be easily obtained.

[0004]

As means for achieving the above-mentioned object, the present invention is directed to return to the cabin, exhaust ventilation passage and supply,
Each ventilation passage for introducing the outside air is formed, and a cooling / hot water heat exchange coil and an outside air introduction blower are installed in the ventilation passage, and the dampers F1, 2, 3 are arranged between the ventilation passages to return, supply, A ventilation unit AR that circulates indoor air and processes outside air, and a total heat exchanger and cooling in the in-flight ventilation passage,
The present invention relates to a combination of an air conditioning unit in a room configured by an air conditioning unit AC provided with each heat exchange coil for hot water for the purpose of exhaust heat recovery, ventilation, and outside air cooling, the ventilation unit and the air conditioning unit. The number of units installed in the room can be set in advance to divide into equal parts to correspond to the air conditioning conditions such as ventilation volume in the room, or 2:
(1) Providing an all-air-conditioning system in a room, in which a proportional number of units are arranged in each place in the ceiling, and the ventilation unit AR and the air-conditioning unit AC are simultaneously operated to air-condition the entire room in a substantially balanced manner And

Further, as means for achieving the above-mentioned total air conditioning system, in the present invention, each of an air supply chamber A, an air blowing chamber B, an outside air introducing chamber C and an exhaust chamber D is formed in the machine, and each of the chambers is formed. Mechanical devices such as a supply / ventilation blower 7, an outside air blower 8, a heat exchange coil 9 for cold and hot water are arranged, and an exhaust damper F1, an outside air introduction chamber C and a blower chamber B are provided between the air supply chamber A and the exhaust chamber D. An outside air introduction damper F2 and a return air damper F3 are installed between the air supply chamber A and the blower chamber B, respectively, and each damper F1,
Recirculation operation configured to send any air conditioning such as return, supply, and introduction of outside air into the room by operation by 2 and 3, ventilation unit AR equipped with air conditioning ventilation and outside air treatment, and front, rear, left and right inside the machine. A return air chamber G, an outside air introduction chamber H, an exhaust chamber I, a blower chamber J, and a total heat exchanger chamber K in the center, and return to the return air chamber G, an exhaust blower 11, and an outside air introduction External air blower 1 in room H
2. The total heat exchanger 13 is installed in the total heat exchanger room K, and the cooling and hot water heat exchange coils 14 and the humidifier 15 are installed in the blower room J to provide exhaust heat recovery and ventilation for indoor air. The target air conditioning unit AC is configured, and the number of the ventilation units AR and the air conditioning units used can be arbitrarily combined and used according to the required capacity according to conditions such as a preset environment of the room. It is characterized by being configured as follows.

[0006]

According to the present invention, the ventilation unit AR and the air conditioning unit AC having the above-described structure are arranged at appropriate positions in the ceiling at appropriate intervals as shown in FIG. The exhaust port is opened indoors and outdoors by connecting ducts L and the like. The number of the ventilation units AR and the number of the ventilation units AR to be installed are determined according to the environment of the room to be set in advance.
In the case of an air conditioning system during a circulation operation at a ventilation rate of 30% and an outside air cooling operation at a ventilation rate of 100%, which is said to be the optimum indoor environment, as shown in FIG. 6, the ratio of ventilation unit AR2: air conditioning unit AC1 Install each unit in. When the ventilation is 50%, the ratio of the number of units installed is 2: 2, and when the ventilation is 20%, the ratio is 5: 1. As described above, the air conditioner is installed according to the preset number ratio, and the indoor unit circulates air in the ventilation unit AR by operating the ventilation unit AR and the air conditioning unit AC at the same time during indoor air conditioning and heating. It is possible to automatically perform exhaust heat recovery and replacement by the air conditioning unit AC and perform various operations of supply air conditioning simultaneously with the cooling and heating air conditioning. Further, when it is necessary to cool the outside air in the intermediate period, it is possible to operate the outside air 100% by operating the dampers of the ventilation unit AR and the air conditioning unit AC. The operating state of each unit during the above operation will be described in more detail. In normal operation, the dampers F1 and F2 of the ventilation unit AR are closed, the return air damper F3 is opened, and the ventilation blower 7 is operated. As a result, the indoor air flows from the intake port 2 to the air supply chamber A, and this flows through the return air damper F3 into the adjacent blower chamber B to cool it to an appropriate temperature by the action of the heat exchange coil 9 for hot water. Reflux from the blower port 3 while being heated. Also, when it is necessary to take in fresh air due to the indoor environment, etc., the return air damper F3 is closed, the other dampers F1 and F2 are opened, and the air supply / ventilation blower 7 and the outside air blower 8 are operated. As a result, the total amount of the air in the room is discharged from the air intake 2 through the air passage 6a to the outside through the exhaust port 4. Simultaneously with the above, one of the fresh outside air is introduced from the outside air intake 5 into the air passage 6b, flows into the air blowing chamber B, and is cooled while being heated to an appropriate temperature by the action of the heat exchange coil 9 for hot water. It is sent indoors as fresher air than 3. In addition, one of the air conditioning units AC returns, and the indoor air flows from the return air port 16 to the return air chamber G and the total heat exchanger chamber K by the operation of the exhaust blower 11, and the total heat exchanger 13 partially operates. While recovering the heat of the above, the rest flows from the exhaust chamber I to the exhaust port 17, and the whole amount is exhausted. Further, at the same time as the above operation, fresh outside air is introduced into the outside air introducing chamber H through the outside air intake 18 by the operation of the outside air blower 12, and the total heat exchanger 13 acts to recover a part of the heat quantity of the indoor air. On the other hand, it is possible to heat the heat exchange coil 14 for cold and hot water installed in the air blowing chamber J to an appropriate temperature and to send cold and warm air of an appropriate temperature to the room through the air blowing port 19. Further, when the cooling by the outside air is required, by opening the bypass bus damper F4, the outside air flows into the bypass passage E, and the outside air can be directly sent to the room to easily obtain the ideal outside air cooling. It can be done. In addition, in the above-mentioned case during the outside air cooling, in the normal case, the cooling and the water flow to the hot water heat exchange coil 14 are stopped, but if the cold air is insufficient due to the indoor popularity, the sunshine, etc. By passing cold water through the cold water heat exchange coil 14, it is possible to supplement the cold air in the room to obtain the optimum room temperature. Incidentally, according to the present invention, the outside air can be reliably and easily taken into the room by stopping the operation of the blower 7 for supply and ventilation during the outside air cooling and switching the damper to operate the outside air blower 8. By opening the bypass passage E of the air conditioning unit AC on the other side at the same time when the outside air is introduced, ideal outside air cooling can be easily taken in the entire room. Further, in the season such as cooling and heating, the outside air blower 8 of the ventilation unit AR is stopped and the indoor air circulation operation is performed only by the operation of the air supply and ventilation blower 7. Ventilation operation of about 30% can be performed, that is, supply of air at the same time as indoor air circulation operation, and ventilation operation of 30% to 50% by outside air operation can easily obtain the required air conditioning expansion. To get.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of a ventilation unit AR and an air conditioning unit AC used in the present invention will be described below with reference to the illustrated example. The ventilation unit AR has a room air intake 2 and a blower on the front side of an airframe 1. The inlet 3 is provided with an exhaust port 4 and an outside air intake 5 for intake, return, and exhaust ports on the other side, and the inside of the machine is divided by a supply chamber A, a blower chamber B, an outside air introduction chamber C, and an exhaust chamber. In each of the chambers D, the air passage 6a that connects the air inlet 2 and the exhaust port 4 and the air passage 6b that connects the outside air inlet 5 and the air outlet 3 are provided inside the machine. The air blower 7 for air supply and ventilation is provided in the air supply chamber A, and the outside air blower 8 is installed in the one air blow chamber B, and the air in the air blow chamber B is cooled.
Various mechanisms such as the heat exchange coil 9 for hot water, the drain pan, the electric control valve, and the valve mechanism, and if necessary, the humidifier 10
Also install mechanical devices such as. Reference numeral 20 in the drawing is a filter mechanism which is replaceably fitted in the vicinity of the air intakes 2 and 5. Ventilation unit AR having such a structure
In the above, the exhaust damper F1 is provided between the air supply chamber A and the exhaust chamber D of the air blow passage 6a, and the outside air introducing chamber C of the air blow passage 6b.
The outside air introduction damper F2 between the air supply chamber A and the air supply chamber B, and the air supply chamber A
A return air damper F3 is provided between the air blowing chamber B and the air blowing chamber B so as to be openable and closable, and the air flow in the air blowing passages 6a and 6b can be freely switched in any direction according to the purpose of use. By the way, by opening the exhaust damper F1 and closing the return air damper F3, the indoor air flows from the air intake port 2 through the ventilation passage 6a and the entire amount of the indoor air flows out through the exhaust port 4. Further, similar to the above, by closing the return air damper F3 and opening the outside air introduction damper F2, the outside air flows through one of the air passages 6b and is blown into the room through the air blower chamber B from the air blower port 3 during that time. The outside air may be heat-exchanged to an appropriate temperature by the action of the heat exchange coil 9 for cold and hot water installed in the blower room B, and a predetermined cold and warm air can be sent to the room. When the introduction is not required, both the dampers F1 and F2 are closed, and only the return air damper F3 is opened so that the indoor air flows from the intake 2 to the blower 3 without being discarded and reuse is possible. Be seen. In addition to the above, when only the outside air is required to be taken in, the return air damper F3 and the exhaust damper F1 are closed, and the outside air introduction damper F2 is opened to allow the outside air to flow from the outside air introduction chamber C to the blower chamber B. It is also possible to supply the air conditioner directly to the room by flowing the air.

The other air conditioning unit AC is shown in FIGS.
As shown in FIG. 4, partition plates are provided on the front, rear, left and right sides of the machine to form a return air chamber G, an outside air introduction chamber H, an exhaust chamber I, and a blower chamber J, and a total heat exchanger chamber K is formed in the center of the return chamber. Returning into the air chamber G, an exhaust air blower 11 is installed, an outside air blower 12 is installed in the outside air introduction chamber H, a total heat exchanger 13 is installed in the total heat exchanger chamber K, and a cooling air is blown in the air blower chamber J. , The heat exchange coil 14 for hot water, the humidifier 15, and other electric two-way valves, control mechanisms, and other necessary mechanical devices are arranged, and the indoor air is generated by the operation of the return and exhaust blowers 11. It flows into the total heat exchanger 13 through the air supply port 16, passes through the exhaust chamber I, and is exhausted to the outside through the exhaust port 17. During this time, the heat quantity in the room air is not exhausted by the action of the total heat exchanger 13 but a part thereof is recovered. In addition, at the same time as the above-mentioned operation, by operating one of the outside air blowers 12, fresh outside air passes through the total heat exchanger 13, and heat is exchanged with the heat exchange coil 14 for cooling and hot water in the air blow chamber J to an appropriate temperature. Then, the air can be sent from the blower port 19 to the inside of the room to distribute appropriate cooling / warming air in the room. These operations are performed by the 8-bit switches s1 and s2 that are electrically connected to the respective units. Reference numeral 21 is a filter that is detachably attached inside the air supply port.

Further, the outside air introduction chamber H is provided at the side of the total heat exchanger chamber K in which the total heat exchanger 13 is arranged in the air conditioning unit AC.
By-pass passage E communicating with air blower chamber J is provided, and by-pass damper F4 is openably and closably provided in by-pass passage E. By the action of by-pass damper F4, outside air is introduced from outside air introduction port 18 into a total heat exchanger. It is possible to directly circulate the air into the air blowing chamber J without passing through 13, and supply the air from the air blowing port 19 to the room to easily obtain the cooling by the outside air. Furthermore, in the present invention, it is possible to replace the ventilation and air conditioning units with another air conditioner.
Depending on the installation location, etc., it is not limited to ceiling installation only, but it can be widely used as a floor-standing type or an outdoor installation type system.

[0010]

As described above, according to the present invention, the ventilation unit AR having the ventilation and outside air processing functions and the number of installed air conditioning units AC having the air conditioning ventilation and outside air processing functions can be set in advance according to the indoor conditions. Units are installed in combination according to a ratio, and both side ventilation units AR and AC are operated at the same time to distribute the air conditioning such as ventilation, environment, and temperature distribution in the room substantially evenly throughout the room. There is an effect that it is possible to easily obtain the optimum air conditioning deployment. Particularly, in the present invention, by installing only the required number of units, it is possible to minimize the use of expensive air conditioning units having a capacity higher than the conventional one, which is very economical and simple. Moreover, the present invention is applicable to the ventilation unit AR and the air conditioning unit AC, respectively.
Since it is equipped with a function to blow outside air, it is possible to easily and easily find the conventionally desired outside air cooling in the intermediate period.

Further, according to the present invention, since the total heat exchanger is installed in the air conditioning unit used together with the ventilation unit, during the ventilation of the indoor air, the action of the total heat exchanger causes the exhaust air in the exhaust air. By recovering a part of the amount of heat and reusing the amount of heat, it is possible to greatly reduce the consumed heat energy, and it also has the effect of being economical.

[Brief description of drawings]

FIG. 1 is an overall view of an entire air conditioning system according to the present invention,

FIG. 2 is a plan view showing the internal structure of the ventilation unit of the system,

[Fig. 3] Same as above, side view,

FIG. 4 is a plan view showing the internal structure of the air conditioning unit,

FIG. 5 Same as above, side view

FIG. 6 is an electrical wiring diagram showing another adaptation example of the above.

Claims (4)

[Claims] 1. A return air passage, an exhaust air passage passage, a supply air passage, and an outside air introduction air passage are formed in the machine, and a heat exchange coil for cold and hot water and an outside air introduction air blower are installed in the air passage and installed between the air passages. It can be returned by operating the dampers F1, 2, 3 that can be installed.
A ventilation unit AR configured to circulate indoor air such as supply and exhaust and to treat outside air, a total heat exchanger and a heat exchange coil for cold and hot water in a ventilation passage formed inside the machine,
An air-conditioning unit in a room configured by an air-conditioning unit AC that is provided with each of a return fan and an exhaust blower and has exhaust heat recovery, ventilation, and outdoor air cooling functions. , Both side units AR are arranged at predetermined intervals in the ceiling as a proportional number of units corresponding to the air conditioning conditions in accordance with a preset ventilation volume in the room.
An all-air-conditioning system in a room, characterized in that it is configured to send a substantially balanced air-conditioning distribution to the entire room by simultaneous AC operation. 2. The air conditioning system according to claim 1, wherein each of an air supply chamber A, a blower chamber B, an outside air introduction chamber C, and an exhaust chamber D is formed in the machine for supplying and ventilating to each of the chambers. Mechanical devices such as a blower 7, an outside air blower 8, a heat exchange coil 9 for cold and hot water, and a humidifier 10 if necessary are arranged, and an exhaust damper F1 and an outside air introduction chamber are provided between the air supply chamber A and the exhaust chamber D. An outside air introduction damper F2 is installed between C and the blower room B, and a return air damper F3 is installed between the air supply room A and the blower room B, respectively, and the return air, the supply air and the outside air are introduced by the operation of each of the dampers F1, 2, 3 A ventilation unit for ceiling installation characterized by being configured to send arbitrary air conditioning to the room. 3. The air conditioning system according to claim 1, wherein a return air chamber G, an outside air introduction chamber H, an exhaust chamber I, and a blower chamber J are provided on the front, rear, left and right sides of the machine, and a total heat exchanger chamber K is provided at the center thereof. Blower 1 for forming and exhausting each chamber and returning to the above-mentioned return air chamber G
1, a blower 12 for the outside air in the outside air introduction chamber H, a total heat exchanger 13 in the total heat exchanger chamber K, a cooling in the blower chamber J, a heat exchange coil for hot water 14, a humidifier 15, etc. Install each required mechanical device individually. An air conditioning unit for ceiling installation characterized by being configured to perform exhaust heat recovery of indoor air and ventilation operation at the same time. 4. The air-conditioning unit according to claim 3, wherein a by-pass passage E for introducing outside air is formed in one side portion of the total heat exchanger chamber K formed in the machine, and the by-pass passage E is provided in the by-pass passage E. An air conditioning unit characterized by a damper F4 that can be opened and closed freely.