JPH0763371A - Terminal type air conditioner - Google Patents

Abstract

PURPOSE:To make it possible to enhance stability, and what is more, to form the whole shape compactly by installing a filter chamber, which houses low weight filters or the like, to the lower part of the center of an equipment body and setting up heavy SA and EA fans respectively to the lower part of the chamber on both sides. CONSTITUTION:Each of suction and discharge ports and each chamber are communicated with a plurality of U-shaped air supply passages A to E with a central filter chamber 7 as their central part. A stationary type full heat exchanger 13 is laid out in a full heat exchanger chamber 6 while the SA and EA heat exchangers are laid out in right and left air supply chambers 9 and 11: SA and EA fans 14 and 15 are laid out in a heat exchanger chamber: equipment devices, such as cooled and heated water coils 16, a drain pan 17 and a humidifier 18 are laid out in their respective chambers. Moreover, a main filter (a) and a prefilter (b) for high and neutral performance filters or the like are removable and property installed so as to comply with the purpose of their service. This construction makes it possible to maintain the filters easily and definitely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a filter for the purpose of facilitating work such as maintenance of various filters in a room requiring a particularly clean environment such as a laboratory or hospital. The present invention relates to a filter-oriented terminal type air conditioner in which a chamber is formed in the center of a machine body and various filters can be collectively housed in the chamber.

[0002]

2. Description of the Related Art Conventionally, air conditioners for intake, return, and exhaust have been separately installed and used as means for cooling and heating a room or a large number of rooms, but these intake, return, and exhaust operations have recently been performed. Various terminal-type air conditioners configured so that they can be performed by one device have been developed. However, in most of these air conditioners, the filter is installed on the top of the machine due to its mechanism, so maintenance work such as inserting and removing the filter is performed at a high place, which is very difficult and dangerous. The above replacement work must be carried out more frequently, especially in places where a clean air environment is required, such as in laboratories and hospitals. Especially, in recent years, these filters have become high performance. Since it is bulky and heavy, maintenance work of the filter on the upper part of the fuselage is impossible as described above, and there is a serious problem such as dust being scattered into the hospital room during the work, which is very unhealthy. I was doing it. In addition, the total amount of air that can be returned from the room is also uneconomically discharged because the total amount of the air that is returned from the room is discharged randomly together with the contaminated air in the room without utilizing the heat quantity contained in the return air. In addition, there are various drawbacks in that the noise generated in the aircraft flows out into the room and a quiet environment cannot be obtained.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention makes it possible to easily and surely perform maintenance work on a filter, and at the same time, to request the optimum air-conditioning deployment in the room depending on the indoor environment. The present invention intends to widely provide a terminal-type air conditioner for multiple purposes, which is capable of achieving quiet air blowing at the same time.

[0004]

The present invention was developed as a means for achieving the above-mentioned object, and its outline will be described with reference to the drawings.
Each of the return air port 3, the outside air intake port 4, and the exhaust port 5 is provided with an intake port and an exhaust port, and several partition plates are provided inside the machine to form a total heat exchanger chamber 6 in the central upper part and a filter chamber 7 in the lower part. On both the left and right sides, the heat exchanger chamber 8, the SA blower chamber 9, and the outside air introduction chamber 1
0, EA blower chamber 11, exhaust chamber 12 are formed,
In addition, a plurality of U-shaped air passages A, B, C, D and E are used to connect the intake and exhaust ports and the chambers with the central filter chamber 7 as an axis, and the static total heat is stored in the total heat exchanger chamber 6. The exchanger 13 is provided with SA and EA blowers 14 and 15 in the left and right blower chambers 9 and 11, and the cold and hot water coils 16 are provided in the heat exchanger chamber 8.
A filter chamber 7 in which equipment such as a drain pan 17 and a humidifier 18 are arranged in respective rooms and further formed in the center of the machine.
A main filter a such as a high- and medium-performance filter, a pre-filter b, and other various filter members required according to the purpose of use are appropriately inserted and removed. Further, it is characterized in that the space inside the filter chamber 7 can be used to easily and removably accommodate machines such as an electrostatic precipitator and an operation panel.

Further, in the present invention, as described in detail below, an air flow switching damper is provided in each of the air passages.
d1, bypass bypass switching damper d2, outside air introduction switching damper d3
Each damper is installed, and each air flow such as return air, exhaust air, and the introduction of outside air that flows through each of the above-mentioned blower passages by the damper switching operation is performed at the same time with the cool and warm air of the optimum temperature and air volume, or It is constructed so that it can be delivered to the room individually.

[0006]

Next, the operation will be described. First, each intake / exhaust port that can be opened at the top is connected in series, and the air supply port 2 and the air supply port 2 are indoors, and the outside air intake port 4 and the exhaust port 5 are outdoor. Each is installed indoors or outdoors through a fan coil unit device or the like in order to open each. In driving the SA and EA blowers 14 and 15 in the machine in such a state, fresh air is taken in and contaminated air in the room is returned to the upper return port 3 at the same time.
The air that flows through the air passages A, B, C, D, and E from each other, but the air taken into the machine is changed by the switching operation of each damper.
As shown in FIG. 3, for example, by opening all the dampers d1, d2, d3, a part of the RA air passes through the ventilation passage A, and the main and pre-filters a, b installed in the filter chamber 7 therebetween.
Is passed through a circuit (RA → SA) that sends cold / warm air into the room while heat exchange at an appropriate temperature is performed in the cold / hot water coil 16, and at the same time as the above action, fresh outside air is the outside air. R from the intake 4 via the air passage E
It merges with the A air and sends it as a mixed air into the room. Further, at the same time as the above, a part of the contaminated air on the indoor side passes through the ventilation passage B and is discharged to the outside via the exhaust port 5 (R
A part of the air on the indoor side flows through the blower passage D at the same time as the exhaust gas while flowing through A → EA), and during that time, the heat quantity in the circulating air is caused by the action of the total heat exchanger 13 installed in the blower passage. While absorbing a part of the gas, it merges with the exhaust circuit (RA → EA) and is discharged to the outside of the room. Further, a part of the outside air flows into the total heat exchanger chamber 6 and flows into the blower passage C while recovering a part of the heat quantity of the indoor air by the total heat exchanger 13, and the main inside the filter chamber 7 is the same as above. , Is filtered by the pre-filters a and b, merges with the return air, and flows through the circuit (OA → SA) for introducing fresh outside air into the room together with the return air from the room. Depending on the indoor environment, for example, when the entire amount of indoor air is discharged outdoors, the dampers d1 and d3 are closed, and the bypass switching damper d2 is opened so that the return air from the return air port 3 is RA → EA. When all the flow is discharged to the outside, and when only the introduction of outside air is required, the dampers d1 and d2 are closed and the outside air introduction switching damper d3 is opened to require not only introduction of outside air but also cold air, in the middle period, It is possible to obtain a predetermined air-conditioning expansion by switching the dampers d1, d2, d3, such as direct cooling by outside air such as in winter.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment will be described below.
Is an air supply port 2, a return air port 3, an outside air intake port 4, and an exhaust port 5 are provided at appropriate places such as the upper part or the side part of the machine body, and the inside of the machine is composed of several partition plates. The heat exchanger chamber 6 is divided into upper and middle parts of the fuselage, and the filter chamber 7 is provided below the total heat exchanger chamber 6.
On the left and right sides, a heat exchanger chamber 8, an SA blower chamber 9,
Each of the outside air introduction chamber 10, the EA blower chamber 11, and the exhaust chamber 12 is formed and provided. Further, in the inside of the above-mentioned machine, a ventilation passage A that communicates the return air port 3 and the air delivery port 2 is connected, a ventilation passage B that communicates the return air port 3 and the exhaust port 5, and an outside air intake port 4 and the ventilation port 2 A plurality of U-shaped air passages of the air passage E, a plurality of air passages C connecting the outside air intake 4 and the air outlet 2 with the central filter chamber 7 as an axis, and a plurality of air passages D connecting the return air outlet 3 and the air outlet 5 U-shaped ventilation passages are provided for each of them, and the static total heat exchanger 13 is vertically installed in the total heat exchanger chamber 6, and the heat exchanger protection filters c and d are provided as sub-filters on both side surfaces thereof. The SA blower 14 is installed in the SA blower chamber 9 in which each filter is installed and formed on both lower sides of the blower passages A and B.
In the EA blower chamber 11, an EA blower 15 is installed, and in the heat exchanger chamber 8, necessary mechanical devices such as a cooling coil, a hot water coil 16, a drain pan 17, and a humidifier 18 are installed. Further, the air flow switching damper d1 is provided in the air passage A that communicates with each chamber, and the bypass passage switching damper is provided in the air passage B.
The damper device of the outside air introduction switching damper d3 is installed in the air passage E so as to be openable and closable, and the air flow of the outside air, the return air, the exhaust air, and the air flowing in the air passages is cut off by the switching operation by the damper. Or they may be compatible with each other and change distribution. Needless to say, these operations are automatically controlled by a computer or the like to automatically manage various operations such as changing the air flow in the passage. Particularly, in the present invention, a high and medium performance filter is used as the main filter a in the filter chamber 7 formed in the center of the machine, and the other prefilter b is used as the deodorizing filter and salt damage as shown in FIG. Various air cleaning filters such as a removal filter, an antibacterial filter, an activated carbon filter, a bag filter 19 and the like can be appropriately inserted and removed according to the purpose of operation. In addition to the above filter mechanism, the space inside the filter chamber 7 is used to collect an electric dust collector,
It is also possible to accommodate the operation panel and various mechanical devices at the same time.

Further, according to the present invention, the front panel 20 is attached to the front surface of the machine body 1 so as to be openable and closable, and the maintenance work of each mechanical device installed in the machine is facilitated by opening the front panel 20. It is possible to very easily and surely perform the work of attaching and detaching the main, the pre-filters a, b, etc., which are installed in the filter chamber 7 from the front of the machine.

Further, in the present invention, the air supply port 2a,
A sound absorbing chamber 21 is provided integrally with the upper part of the machine body 1 by providing a return air inlet 3b, an outside air inlet 4a, and an exhaust outlet 5a, respectively, and providing a sound deadening mechanism of an appropriate shape inside the device. By installing the equipment, it is possible to obtain a very quiet air conditioning supply at the same time.

[0010]

As described above, according to the present invention, the filter chamber 7 for accommodating the lightweight filters is formed in the lower center of the machine body 1, and the weight of the SA and EA blowers 14, 15 is lower than both sides of the chamber. Since each of them is installed, the stability is excellent, and not only the filter but also various related mechanisms can be accommodated in the central filter chamber 7 at the same time, so that the overall shape can be made extremely compact. Of course, depending on the purpose of using the filter chamber 7 as a filter chamber, any type of air cleaner such as a main high- and medium-performance filter, a pre-filter, and other deodorizing filters, filters for removing salt damage, antibacterial filters, activated carbon filters, etc. The filter for use also has the effect that it can be easily and neatly housed in the room. In particular, in the case of the present invention, since the filter chamber 7 is formed below the center of the machine body, it is very easy and reliable to insert and remove the filter as compared to the conventional high-risk work at a high place. Since various operations such as replacement are easy, the filter is frequently replaced, and it is an ideal invention as a filter-oriented type in laboratories, hospitals, etc. where a clean environment is an absolute requirement.

Moreover, in the present invention, the dampers da, db, dc for switching the passages are installed in the respective ventilation passages A, B, C, D, and the outside air, the return air, the exhaust air, etc. are respectively changed by the switching operation of the dampers. It is possible to distribute the air flow of each other in a mutually compatible manner and to reliably send cold and warm air to the room, but in particular when the cool air is required due to the population density in the middle season and winter, the outside air is directly supplied to the room. In addition, it can be adapted to the indoor environment immediately, and the heat quantity in the exhaust gas can be recovered by installing the total heat exchanger 13, and the energy consumption can be greatly reduced by reusing it. It also has a significant economic effect. In particular, each of the above air passages is formed in a U shape,
In addition, the filter chamber 7 in the center of the machine increases the air circulation distance in the machine, suppresses the noise noise of the discharge flowing out from each intake / exhaust port, and bends and disperses the wind in the lower bottom part of the drain pan 17 installed in the air passage A. It also has an effective silencing function. As described above, the present invention is a convenient multipurpose air conditioning system in which all the air conditioning operations such as warm-up operation, outdoor air cooling operation, and mixing operation can be easily obtained by one device by opening / closing the dampers installed in each air blower. It is a machine.

Further, as described in claim 3, the front panel 20 is attached to the front surface of the machine body 1 so as to be openable and closable, so that the doors of the front panel 20 can be opened to perform maintenance work of each mechanical device installed in the machine and lower front part of the machine body. Therefore, maintenance work such as attachment and detachment of each filter housed in the filter chamber 7 can be performed very easily and surely.

Further, as described in claim 4, a noise elimination chamber 21 provided with an appropriate noise elimination mechanism inside the vessel is integrally connected to the upper portion of the machine body 1 so that noises flowing out from the respective intake and exhaust ports can be obtained. It also has the advantage that vibration noise can be further suppressed and very quiet air conditioning development can be required at the same time.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing the internal structure of a terminal type air conditioner according to the present invention,

[Fig. 2] Same as above, front view,

FIG. 3 is an explanatory view of the air flow,

FIG. 4 is a view showing an example of an installed body of each filter in a filter chamber.

[Explanation of symbols]

 2 Air supply port 3 Return air port 4 Outside air intake 5 Exhaust port 6 Total heat exchanger room 7 Filter room a Main filter b Pre-filter 8 Heat exchanger room 9 SA blower room 10 Outside air introduction room 11 EA Blower room 12 Exhaust room 13 Total Heat Exchanger 14 SA Blower 15 EA Blower 20 Front Panel 21 Muffler Chamber Blower Passage Switch Damper d1 Air Flow Changeover Damper d2 Bypass Passage Changeover Damper d3 Outside Air Introduction Changeover Damper

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[Procedure amendment]

[Submission date] September 20, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment will be described below.
Is an air supply port 2, a return air port 3, an outside air intake port 4, and an exhaust port 5 are provided at appropriate places such as the upper part or the side part of the machine body, and the inside of the machine is composed of several partition plates. The heat exchanger chamber 6 is divided into upper and middle parts of the fuselage, and the filter chamber 7 is provided below the total heat exchanger chamber 6.
On the left and right sides, a heat exchanger chamber 8, an SA blower chamber 9,
Each of the outside air introduction chamber 10, the EA blower chamber 11, and the exhaust chamber 12 is formed and provided. Further, in the inside of the above-mentioned machine, a ventilation passage A that communicates the return air port 3 and the air delivery port 2 is connected, a ventilation passage B that communicates the return air port 3 and the exhaust port 5, and an outside air intake port 4 and the air delivery port 2 are connected. A plurality of U-shaped air passages of the air passage E, a plurality of air passages C connecting the outside air intake 4 and the air outlet 2 with the central filter chamber 7 as an axis, and a plurality of air passages D connecting the return air outlet 3 and the air outlet 5 U-shaped ventilation passages are provided for each of them, and the static total heat exchanger 13 is vertically installed in the total heat exchanger chamber 6, and the heat exchanger protection filters c and d are provided as sub-filters on both side surfaces thereof. The SA blower 14 is installed in the SA blower chamber 9 in which each filter is installed and formed on both lower sides of the blower passages A and B.
In the EA blower chamber 11, an EA blower 15 is installed, and in the heat exchanger chamber 8, required mechanical devices such as a cooling coil, a hot water coil 16, a drain pan 17, and a humidifier 18 are installed. Further, the air flow switching damper d1 is provided in the air passage A that communicates with each chamber, and the bypass passage switching damper is provided in the air passage B.
The damper device of the outside air introduction switching damper d3 is attached to the air passage E so as to be openable and closable, and the air flow of the outside air, the return air, the exhaust air, and the air flowing in the air passages is cut off by the switching operation by the damper. Or they may be compatible with each other and change distribution. Needless to say, these operations are automatically controlled by a computer or the like to automatically manage various operations such as changing the air flow in the passage. Particularly, in the present invention, a high and medium performance filter is used as the main filter a in the filter chamber 7 formed in the center of the machine, and the other prefilter b is used as the deodorizing filter and salt damage as shown in FIG. Various air cleaning filters such as a removal filter, an antibacterial filter, an activated carbon filter, a bag filter 19 and the like can be appropriately inserted and removed according to the purpose of operation. In addition to the above filter mechanism, the space inside the filter chamber 7 is used to collect an electric dust collector,
It is also possible to accommodate the operation panel and various mechanical devices at the same time. In the present invention, as another embodiment, the arrangement of the intake / exhaust ports such as the air supply port 2, the return air port 3, the outside air intake port 4, the exhaust port 5 and the internal mechanical devices are limited only to the illustrated structure. Instead, for example, as shown in FIG. 5, depending on the installation location and the like, it is also possible to arbitrarily change the above-mentioned respective positional relationships of the intake and exhaust ports, the air passages and the like in parallel.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Added

[Correction content]

[Figure 5]

Claims (4)

[Claims] 1. An air supply port, a return air port, an outside air intake port, and an exhaust port are provided at appropriate places such as the upper part of the machine body, and a total heat exchanger is provided in the upper center of the machine by a partition plate. A chamber, a filter chamber below the chamber, and heat exchanger chambers on the left and right sides of the chamber.
Each of the SA blower room, the outside air introduction chamber, the EA blower room, and the exhaust chamber is formed, and the plurality of U-shaped blower passages A, B, C, D, and E are centered around the central filter chamber, and each of the intake and exhaust is formed. Equipment that communicates the mouth and each room with a total heat exchanger in the total heat exchanger room, SA and EA blowers in the left and right blower rooms, and cool, hot water coil, drain pan, humidifier, etc. in the heat exchanger room Place the device in each room, and
Airflow change switching damper d1, bypass bypass switching damper d2, and outside air introduction switching damper d3 are arranged between the intake, exhaust, and ventilation ventilation passages A, B, C, and D so that the ventilation passages can be changed. By changing the air flow such as return, exhaust, introduction of outside air, intake and exhaust air, etc. circulating in each of the above ventilation passages by the operation of the damper, supply and reception of cold and warm air to the room and mixing of outside air and indoor return air A multi-purpose air conditioner configured to send and receive the required cool and warm air simultaneously or individually according to the indoor environment, such as air and exhaust, outside air cooling, etc. A filter-focused terminal-type empty space characterized in that main, pre-filter, and other necessary filter members according to the purpose of use are gathered in the room to be inserted and removed freely. Conditioner. 2. A terminal type air conditioner having the structure according to claim 1, wherein appropriate filter members such as a main filter and a pre-filter are housed in a filter chamber formed in the lower center of the inside of the machine. A terminal type air conditioner characterized by being configured so that a mechanical device such as an electric dust collector and an operation panel can be housed at the same time by utilizing the space in the filter chamber. 3. The air conditioner according to claim 1, wherein a front panel is attached to the front surface of the machine body so as to be openable and closable.
A terminal type air conditioner characterized by being configured so that maintenance work of each in-machine mechanism device can be performed easily. 4. The air conditioner according to claim 1, wherein each of the air intake port, the return air port, the outside air intake port, and the exhaust port is provided with an opening in the upper part of the airframe, and an appropriate muffling is provided inside. A terminal type air conditioner characterized by integrally forming a silencing chamber integrally formed with a mechanism.