JPH0827034B2 - System type air conditioner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an economical air conditioner capable of not only supplying cold and warm air to the room but also cooling the outside air, without particularly reducing the capacity and capacity of conventional machines. The present invention relates to a system type air conditioner whose main purpose is to form a compact body as a whole.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 1, an air conditioner of this type is returned to each of a return air blower room a, an intake blower room b, a coil machine room c, a total heat exchanger room d, etc. The outside air blower is installed and has a configuration in which the blowers for the outside air are connected in the lateral direction. In addition, since the space space in each room is also large, the overall shape is bulky and naturally the installation area is also large, the distance between the air blowers is long, the energy consumption is great, it is uneconomical, the cost is high, and even during transportation. It had drawbacks such as causing problems.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned drawbacks, and the overall shape is made extremely compact, and the temperature of the outside air is low, such as in the middle season and winter when cooling is not required. Focusing on the use of the outside air at the time, even when the indoor temperature rises due to the collective body of the population, the degree of sunshine, the use of OA equipment, etc. even in the above-mentioned seasons, the outside air is directly required, It is intended to provide a wide range of convenient terminals and system type air conditioners that can obtain an ideal cooling effect by introducing them into a room.

[0004]

As a means for achieving the above object, an example of a cassette type air conditioner according to the present invention is shown in the drawings, and the inside of a machine body 1 is divided into upper and lower parts by a partition plate, and the front and rear parts are separated from each other. A return air passage a that connects the intake port 2 and the exhaust port 3, which are respectively opened, and an exhaust air passage a at the top, and an outside air intake port 4
And a return air passage b communicating with the air outlet 5 is formed below. Further, the return, exhaust blower 6 and return, outside air blower 7 are arranged in parallel in the air passage, and cool, hot water coil 8, humidifier 9 and other necessary mechanical devices are installed in the lower air passage. To form the A unit. Also the aircraft 1
By installing a by-pass air passage c vertically or on one side between the inner upper and lower air passages of the B unit having the exhaust port 3 and the outside air intake port 4 provided on one side, the total heat exchanger 10 is installed vertically. The outside air introduction dampers d1 and d2 are returned between the upper and lower air passages a and b in the front air passage of the total heat exchanger 10, the exhaust air blow switching damper d3, and the by-pass damper d in the by-pass air passage c.
4 is installed so as to be openable and closable, and is configured to freely return air through the switching operation of these dampers, exhaust air, introduction of outside air, and air-fuel mixture.

Further, in the present invention, in the usual case, the A unit and the B unit are continuously arranged in an integrated structure. However, the A unit and the B unit are separately formed in advance, If necessary, above A unit and B
It is also possible to separate the units so that, for example, one of the unit devices can be used independently as an RA-equipped air handling unit machine.

[0006]

According to the present invention, the A unit and the B unit are integrally used, and each of the intake / exhaust ports is connected to the air outlet, the outdoor exhaust port, etc. which are installed on the indoor side by duct connection or the like, Return, exhaust blower 6 and return, outside air blower 7
During operation, the contaminated air on the indoor side is sucked from the suction port 2 of the A unit, is returned, and the whole amount is discharged to the outside from the exhaust port 3 through the exhaust air blowing path a. At the same time as the above operation, one of the fresh outside air is returned from the outside air intake port 4 while passing through the total heat exchanger 10 while recovering a part of the heat quantity contained in the exhaust gas and flowing to the outside air blowing passage b. Cooling and warming air of a predetermined temperature and fresh outside air are sent to each room through the outlet 5 while heat exchange and humidification are performed to an appropriate temperature by the action of the cold and hot water coils 8. Further, when it is necessary to return the indoor air at the same time as the intake of the outside air at the time of the above-mentioned action, the entire amount of the indoor air is discarded by opening the return / exhaust air ventilation switching damper d3 installed between both ventilation passages. Instead, it is recirculated to the room as a mixture. In addition, when the outside air is not required for the operation, the outside air introduction dampers d1 and d are naturally used.
By closing the bypass bus damper d4 and the bypass bus return d2 and opening the exhaust air blowing switching damper d3, the return air operation can be performed only with the indoor air without taking in the outside air. Further, when it is necessary to introduce a small amount of cold air in addition to normal cooling and heating due to the indoor environment in the middle of the season, winter, etc., by opening the bypass damper d4 when the cold and warm air is sent, Appropriate cold air can be easily taken into the room, and when it is necessary to introduce only fresh outdoor air, the bypass bus damper d4 is opened and the other outdoor air introduction dampers d1, d2, and It is also possible to easily take in the return and exhaust air blowing switching damper d3 by closing the circuit. That is, in the case described above, the outside air cooling can be directly sent to the room without using the cold and hot water coil 8, and therefore, it is used very economically and healthily. In addition, when the effect is insufficient at the time of cooling the outside air and more cool air is required, the intended cooling effect can be enhanced by supplementarily flowing cold water through the cold water coil. Further, when humidification is required at the time of air blowing, by returning the air, and opening the humidifier 9 installed in the outside air blowing passage b to allow water or steam to flow, the humidification can be performed at the same time as the air blowing. It is also possible to send air into the room.

Further, according to the present invention, in some cases, the above-mentioned return, exhaust, and outside air blowers 6 and 7 are provided.
The unit and the B unit having the total heat exchanger 10 are separately formed in advance so that the A unit and the B unit are separated as necessary, and the A unit and the B unit are individually separated, for example, the A unit is an air handling unit with RA. It can also be used as a machine.

Further, according to the present invention, the front panel 12 is attached to the front surface of each unit body so as to be openable and closable, so that the inside of the body is exposed at once by simply opening the front panel 12. It is a convenient invention that various works such as individual maintenance can be surely and easily performed from the front of the machine body.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings, in which one side of a machine body 1 is provided with an intake port 2 and an outlet port 5, and the other is provided with an exhaust port 3 and an outside air intake port 4 as intake and exhaust ports. Provided, the suction port 2 and the exhaust port 3 are communicated with and returned to the inside of the machine,
The exhaust air passage a is returned by communicating the outside air intake 4 and the air outlet 5, both air passages of the outside air passage b are formed vertically and the upper return, return to the exhaust air passage a, exhaust blower 6 To
Return, outside air blower b, return and outside air blower 7 are installed side by side, respectively, and return below, cooling in outside air blower b, hot water coil 8, humidifier 9, medium performance filter 11 etc. Arrange the device to form the A unit. In addition, a B unit in which total heat exchangers 10 are installed in a vertical column at the center between upper and lower air passages formed in one of the airframes 1 and by-pass air passages c are provided on the upper and lower sides or one side of the total heat exchangers 10 Form. Further, the outside air introduction dampers d1 and d2 are returned in the B unit front passage, the exhaust air blowing passage a and the return air, the exhaust air blowing passage b is returned, and the exhaust air blowing switching damper d3 is provided in the bypass air passage c. The dampers d4 are arranged so as to be openable and closable so that the air flow flowing in the air passage can be switched in any direction. The switching operation of each of the blower switching dampers is automatically controlled by the computer and switch installed on the indoor side depending on the indoor environment.

In another embodiment, the body 1 is formed with a partition plate E so that the center of the body 1 can be separated and connected to the left and right so that only one of the A unit and the B unit is independent. , For example, disconnect A unit and RA
It can also be used as an attached air handling machine.

Further, the opening positions of the intake port 2 and the intake port of the air outlet 5 provided on one side of the airframe 1 on the side of the A unit can be opened at arbitrary positions according to the installation conditions in the room. Therefore, it is possible to easily install at a predetermined place without being restricted by the positional relationship of the intake and exhaust ports at the time of installation.

Further, the front panel 12 can be attached to the front surfaces of the A unit and the B unit so as to be openable and closable, so that the maintenance work of the internal mechanism can be performed reliably and easily.

[0013]

As described above, the present invention forms the return air, the exhaust air flow path a and the return air, and the outside air air flow path b as described above, and the return air, the exhaust air, and the outside air blowers 6 and 7, respectively. Along with being installed side by side, mechanical devices such as a cold, hot water coil 8 and a humidifier 9 are installed in the lower air passage to install the A unit and the total heat exchanger 10.
Since the B unit, which has been installed, is formed as an integrated structure, the blowers for returning, exhausting, and outside air are separately scattered and installed in each mechanism room as in the conventional case. The overall shape can be made very short as compared with the structure in which the units are long and connected in the lateral direction, and in particular, since the above-mentioned blowers 6 and 7 are arranged in parallel in the blower passage, the capacity, The overall shape is made compact without any loss of capacity and the like, and the effect is that the installation area is small.

Further, according to the present invention, by switching the dampers installed between the air passages, not only the cooling in summer and the direct cooling by the outside air, but also in the case where cooling air is required in a room with a large indoor load even in winter, for example. However, it is easy to immediately introduce the outside air that can be cooled to the outside into the room, and it becomes possible to maintain the indoor environment in the best and healthy condition by the conditions and the outside air. Moreover, the return inside the aircraft, the exhaust air passage a, Return, outside air duct b
Since the total heat exchanger 10 is installed between them, the amount of heat in the air to be discarded at the time of heat exchange is sufficiently recovered and reused,
Conventionally, it greatly reduces the heat energy required for cooling,
There are advantages such as being very economical. Further, according to the present invention, since the air passages in the upper and lower sides of the machine are formed in a so-called two-story structure, when the air flowing in the machine is blown, the air is bypassed up and down in the air passages. Since the flow distance becomes longer and the total heat exchanger 10 is passed through in a crossing manner, naturally a natural sound deadening effect can be expected during that time, and thus a quiet blowing environment can be easily obtained in the room. It is most suitable as an air conditioner for indoor installation.

Further, as described in claim 2, since the A unit and the B unit are formed so that they can be separated in advance, various operations such as handling during transportation are easy and convenient, and if necessary, the A unit and the B unit. It is also possible to separate any of them and use, for example, the A unit as an air handling unit machine with RA.

Further, as described in claim 3, the intake port 2 of the A unit and the intake / exhaust port of the outlet port 5 are provided at appropriate places such as the upper part, the front part and the side face of the machine body 1 depending on the installation location. It goes without saying that the duct connection work and the like are performed more conveniently.

Further, as described in claim 4, the A unit,
By attaching the front panel 12 to the front part of the B unit so as to be openable and closable, the respective mechanisms inside the machine are exposed by simply opening the front panel 12, so that the inside of the machine can be repaired and inspected at the front part of the machine body. Very smooth maintenance work,
And it can be done easily and surely.

[Brief description of drawings]

FIG. 1 is an overall view of a conventional system type air conditioner,

FIG. 2 is a plan view schematically showing the internal structure of the air conditioner according to the present invention,

FIG. 3 is a front view of the same.

[Explanation of symbols] 6 return, exhaust blower 7 return, outside air blower 8 cooling, hot water coil 9 humidifier 10 total heat exchanger 12 front panel a return, exhaust air blow passage b return, outside air blow passage c by-bus blow passage d1 , d2, d3, d4, return, exhaust, bypass damper for bypass switching,

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location F24F 6/00 331 13/28 13/30

Claims (4)

[Claims] 1. A return that divides the interior of the machine body into upper and lower parts by a partition plate and connects the intake port and the exhaust port that are opened in front of and above the upper part, and a return that connects the exhaust air passage a and the outside air intake port and the outlet port, Each of the outside air blow passages b is provided and the return air exhaust blow passage a is formed.
And return to the outside air blow passage b, exhaust blowers and outside air blowers are arranged in parallel, and cooler, hot water coil, humidifier, filter, and other necessary mechanical devices are provided in the lower blow passage. And an air outlet on one side of the airframe, and an air intake on each side, and a bypass bus c on both sides or one side between the return air exhaust air passage a and the return air air passage b. To form the total heat exchanger, the outside air introduction damper d1, is installed in the front air passage of the total heat exchanger.
d2, and the above-mentioned B unit in which an exhaust air blow switching damper d3 is returned between the upper and lower air passages a and b, and a by-pass damper d4 is openably and closably installed in the by-pass air passage c. A system type air conditioner characterized in that it is installed adjacent to the A unit in an integrated structure. 2. The system type air conditioner according to claim 1, wherein an A unit in which each mechanical device such as return, exhaust, outside air blower and cooling, hot water coil is arranged in the inside of the air conditioner; All B units with total heat exchangers installed are separately formed in advance, A units are separated from B units when necessary, and each unit is configured to be used as a single unit device. A system type air conditioner that is characterized by 3. The system type air conditioner according to claim 2, wherein an intake port that is opened on one side of the body of the A unit,
A system type air conditioner characterized in that each of the intake and exhaust ports of the air outlet is provided at an appropriate place such as an upper portion of the machine body, a front portion, a side surface, or the like according to the installation location or the like. 4. The system type air conditioner according to claim 4, wherein front panels of the A unit and the B unit are attached so as to be openable and closable, and various operations such as maintenance inside the machine can be performed from the front of the machine. A system type air conditioner characterized by being configured as follows.