JPH06257817A - Ventilation unit for cassette type ceiling installation - Google Patents

Abstract

PURPOSE:To improve a heat exchange efficiency and make a unit compact by enabling completely different airs for exhaustion and air suction to flow therethrough instantaneosuly and simultaneosuly by disposing a plurality of full heat exchangers parallely in a serial direction at a middle portion between upper and lower branch ducts formed in a machine body. CONSTITUTION:There are opened an exhaust outlet 2 and a fresh air intake port 3 on one side of a laterally elongated machine body 1 in a ventilation unit for cassette type ceiling installation and an air return port 4 and an air feed port 5 on the other side of the same. Simultaneously, there are provided an air return passage A for communicating the exhaust port 2 and the air return port 4 in the machine and an air feed passage B for communicating the fresh air intake port 3 and the air feed port 5, divided vertically with branch ducts. Further, there are provided at opposite ends of the air return passage A and the air feed passage B an air return fan motor 6 and an air suction fan motor 7, and there are provided a plurality of full heat exchangers 8, 8 parallely in the sirial direction between both fan motors 6, 7 and between both passages A and B. The number of the full heat exchangers are increased and decreased in response to the purpose.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette-type ceiling-installed ventilation unit which is compatible with indoor ventilation and fresh outside air at a high speed and heat-treats the indoor environment in an optimal state.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a ventilation unit for heat treatment of this type has a ventilation fan motor a and an intake fan motor b installed on both sides of a ventilation passage, and has a single unit at the center of the ventilation passage. It has a structure in which a heat exchanger c is arranged,
It was installed on the ceiling, etc., and heat exchange processing of indoor air was performed.

[0003]

However, in the above-mentioned conventional structure, when a heat treatment with a large capacity is required according to the purpose of use, a place, etc., of course, a total heat exchanger with a considerably large capacity or several total heat exchangers is required. Although heat exchangers must be used, placing a large number of total heat exchangers in a row in a narrow air passage makes the entire machine longer, and installing a heat exchanger with a large capacity requires space. There is a problem, and in particular, there is a drawback that the overall shape becomes bulky.

[0004]

SUMMARY OF THE INVENTION The main purpose of the present invention is to fundamentally solve the above-mentioned drawbacks, and the outline of the present invention is as a means for achieving the above-mentioned object. As shown in the example, the inside of the machine body 1 is divided into upper and lower parts to form a ventilation passage A and an air supply passage B, and the upper and lower ventilation passages are opened on both sides of the body body 1, an outside air intake 3, and a return air. The ventilating fan motor 6 and the intake fan motor 7 are installed on both sides of the upper and lower ventilation passages A and B, respectively. It is intended to provide a cassette-type ventilation unit for ceiling installation, which is characterized in that individual total heat exchangers 8, 8 are installed in parallel in series. Further, according to the present invention, in the above-mentioned mechanism, as described in claim 2, a damper mechanism is provided between the ventilation passage A and the air passage B for switching the air passage, so that intake and return air flowing in the upper and lower air passages can be provided. It is characterized in that it is formed so as to arbitrarily change and adjust the flow direction and the air volume.

[0005]

[Operation] Install such a ventilation unit on the indoor ceiling,
When each of the ventilation fan motor 6 and the intake fan motor 7 is driven, the contaminated air in the room passes through the ventilation passage A from the return air port 4, and the total heat exchanger 8 absorbs a part of the amount of heat and the exhaust port. 2 is discharged to the outside of the room, and fresh outside air is introduced from one outside air intake port 3 into the air supply passage B in the machine at the same time as the polluted air is discharged.
One air supply port 5 while a certain amount of heat is given by the action of
More will be sent indoors. That is, by virtue of a plurality of total heat exchangers 8, 8 in which completely different airflows introduced into the airframe 1 from inside and outside are arranged in series as shown by arrows, vertical and simultaneous heat exchanges are carried out, and predetermined heat exchanges are carried out. It may be possible to perform a conversion process.

[0006]

Embodiments of the present invention will now be described with reference to the drawings, in which 1 is an oblong machine body having an exhaust port 2 and an outside air intake port 3 on one side, and a return air port 4 and an air supply port on the other side. 5 is provided as an opening, and a ventilation duct A for communicating the exhaust port 2 and the return air port 4 and an air supply passage B for communicating the outside air intake 3 and the air supply port 5 are formed by branch ducts in the machine. The upper and lower parts are divided and formed. The ventilation fan motor 6 and the intake fan motor 7 are arranged at both ends of the both ventilation passages, and a plurality of total heat exchangers are provided between the ventilation fans A and the ventilation passage A between the fans on both sides and the ventilation passage A as shown in the figure. 8 and 8 are installed in parallel in the series direction. The number of total heat exchangers 8 to be installed varies depending on the purpose.

Further, in the present invention, a damper mechanism for switching the air passages is provided between the upper and lower air passages, and the flow direction or the volume of the air flow passing through the upper and lower air passages is arbitrarily changed and adjusted. It can be done.
As the operating means of the damper mechanism, it is possible to use means for operating with a computer, or various methods such as electric, manual, and mechanical methods. In the drawings, reference numeral 9 indicates a filter mechanism fitted around the inside of the outside air intake port 3 and the inside of the return air port 4. Although not shown in the drawings, the above-mentioned indoor air supply, return air ports 4, 5 and exhaust ports that are open to the outside, and outside air intakes 2 and 3 are the inside and outside of the machine body 1 that are open to the outside. It is connected and connected in the wall between them, or by a duct connection of a suitable length or the like to the air vent and the air intake of each of the indoor and outdoor. It should be noted that, although the above-mentioned embodiment is a description of a ventilation unit for ceiling installation, the structure is not limited only to the ceiling installation, but may be used for other purposes such as outdoor use, floor-standing type, etc. It goes without saying that you can also do it.

[0008]

As described above, according to the present invention, a plurality of total heat exchangers 8, 8 are installed in parallel in the series direction in the central portion of the upper and lower branch ducts formed inside the machine body 1. Because of this, exhausted air, sucked air, and completely different air can be immediately and simultaneously distributed, and moreover, the total amount of the distributed air can be surely transferred to the total heat exchanger 8,
Since it can be distributed in 8, the efficiency is extremely good and the overall shape is compact and compact compared to the conventional mechanism of this type, and of course, the thickness of the aircraft is changed at all. Without doing so, it has a remarkable effect such that the heat treatment of a considerably large amount of air is surely and easily performed. In addition, in the present invention, since the respective ventilation passages are formed by vertically bending with the total heat exchangers 8 as the axis, the ventilation passages are formed to be long and the noise caused inside the aircraft is naturally generated. It has the effect that it is naturally erased during distribution and very quiet heat treatment air conditioning can be easily obtained. Particularly, in the present invention, a plurality of total heat exchangers 8, 8
It is possible to use the residual heat in the contaminated air, which was previously discarded all over the room randomly, by the heat treatment, so that it is possible to use the heat treatment most reliably, so it also has an energy saving effect such as being very economical. . Further, since the respective mechanical devices are arranged in parallel, the maintenance work can be performed very easily and surely.

Further, according to the present invention, as described in claim 2,
By installing a damper mechanism for switching the air passage in the air passage, it is possible to return a part of the air with residual temperature to the room again without discarding the entire amount of exhaust air. It is also possible to change the air supply direction or adjust the air flow rate each time, for example, to obtain a more effective heat exchange treatment.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing the internal structure of a ventilation unit according to the present invention,

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

FIG. 3 is a plan view schematically showing an internal structure as an example of a heat treatment unit which has been conventionally used.

[Explanation of symbols]

 1 Aircraft 2 Exhaust port 3 Outside air intake 4 Return air port 5 Air supply port 6 Fan motor for ventilation 7 Fan motor for intake 8 Total heat exchanger 9 Filter mechanism A Ventilation passage B Air passage

Claims (2)

[Claims] 1. An exhaust port, an outside air intake port, a return air port, and an air supply port, in which a ventilation passage A and an air supply passage B are formed by vertically dividing the inside of the airframe, and the upper and lower air passages are opened on both sides of the airframe. The ventilation fan motors and the intake fan motors are installed on both sides of the upper and lower air passages A and B, and a plurality of total heat exchangers are connected in series at the center between the upper and lower air passages. A cassette type ventilation unit for ceiling installation, characterized by being installed in parallel. 2. An exhaust port, an outside air intake port, a return air port, and an air supply port, which are formed by vertically dividing the interior of the machine body into a ventilation passage A and an air supply passage B, and opening the upper and lower ventilation passages on both sides of the machine body. Ventilation fan motors and intake fan motors are installed on both sides of the upper and lower air passages A and B, respectively, and a plurality of total heat exchangers are provided in the center between the upper and lower air passages. In a ventilation unit in which the above are installed in series, a damper mechanism for switching the air passages is arranged at an appropriate position between the ventilation passage A and the air passage B, and suction and return for flowing in the upper and lower air passages are provided. The air flow direction, the air volume, etc. are formed so as to be arbitrarily changed and adjusted.
The cassette-type ceiling-mounted ventilation unit described in the item.