JPH0543936B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention seeks to provide air conditioning management that is optimal for each room's air condition in each room in a multi-unit building such as a building that has a large number of rooms. A separate type air conditioning unit on the air processing side used in an air conditioning system that is expected to produce ultra-noise air conditioning equivalent to .

[Conventional technology]

Conventionally, air conditioning mechanisms such as fan coil units have been installed in each room as a means of supplying cooled and warmed air to a large number of rooms, but these units are directly blown by fans. In addition, there was a concern that the fan would generate rotational noise, air blowing noise, etc., and that this would leak into the room.

Especially in recent years, with the rapid development of the air conditioning industry, advanced technology is required both functionally and mechanically, and in order to satisfy all of these conditions, it is functionally quite complex. It is inevitable that this will become the norm.

Incidentally, even if it is attempted to completely eliminate the noise generated by the fan coil unit mentioned above, it is extremely difficult to install fairly complex equipment such as a silencing mechanism in a limited aircraft, and furthermore, it may cause a decrease in air volume capacity, etc. is inevitable.

[Problem to be solved by the invention]

In view of the above-mentioned problems, the present invention provides an air conditioning unit that incorporates a heat exchange coil and an air volume adjustment mechanism on the indoor side, and provides air processing that enables air conditioning to be developed under optimal conditions for each room. The main challenge is to find an ultra-low-noise air-conditioning device that simplifies the equipment and is not only functional but also extremely compact in overall shape.

[Means to solve the problem]

As a means for achieving the above-mentioned objects, the present invention provides a generally U-shaped ventilation passage A that communicates an outside air intake port and an indoor air supply port inside the fuselage, a ventilation passage B that communicates a return air port and an outdoor exhaust port, and the above-mentioned , a damper mechanism is disposed between the two ventilation passages A and B to freely switch and blow the air flow in the ventilation passage B, and each ventilation passage is formed in a bypass ventilation passage C, and each of the ventilation passages A and B is provided with a damper mechanism. We aim to widely provide a separate type air conditioning unit in which mechanisms such as a total heat exchanger and a blower fan are disposed inside the air passage B, and necessary mechanical members such as a return air fan are disposed inside the blower passage B. It is something to do.

[Effect]

The fresh air taken in from the outside air intake port 1 passes through the total heat exchanger 5, where it undergoes heat exchange to an appropriate temperature, and is then moved through the air supply port 2 into a duct (not shown) by the operation of the air supply fan 6. Air is distributed to each coil unit (not shown) arranged on the indoor side through the coil unit.

In addition, at the same time as the above operation, contaminated air inside the room flows through a duct (not shown) into the ventilation passage B from the return air port 3, and is exhausted outdoors from the exhaust port 4, but on the way, it passes through the total heat exchanger 5. Flow.

In such a body, a part of the outdoor exhaust air mixes with the outside air flowing through the ventilation passage A by the operation of the damper mechanism 13 in the bypass ventilation passage C, and is heated to the optimum temperature required for heat exchange. However, the air is returned to the room through the air supply port 2 again.

In other words, it is an attempt to significantly reduce the amount of heat used by effectively utilizing the residual room temperature of the contaminated air, which has conventionally been completely exhausted.

The heated and cooled air that has been heat-treated in this way is sent to the fan unit, where it is exchanged with heat to an appropriate temperature using a heat exchange coil within the unit, and the air volume is adjusted to an appropriate air volume using an air volume adjustment device. It is being supplied directly into the room.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to illustrative drawings. An outside air intake port 1, an indoor air supply port 2, a return air port 3, and an outdoor exhaust port 4 are provided in the upper part of the aircraft body. 1 and the indoor air supply port 2 to form a substantially U-shaped ventilation passage A, in which a total heat exchanger 5, an air supply fan 6, an electric motor 7, a control device 8, a noise reduction mechanism 9, In addition to arranging mechanisms such as the main filter 10 as necessary, the above-mentioned ventilation passage A
A ventilation passage B that communicates the return air port 3 and the exhaust port 4 of the indoor air is formed and installed in the air passage.
2 mechanisms are arranged respectively, and both of the above-mentioned ventilation passages A,
A bypass ventilation passage C is formed between B, and a switching damper mechanism 13 is provided in the ventilation passage C to exhaust all or part of the recirculated air from the indoor side into the ventilation passage A. do.

An air conditioning unit with such a structure is placed indoors, underground, on a rooftop, outdoors, etc. as an air processing unit,
A duct is connected to a coil unit with an air volume adjustment mechanism on the ventilation side installed in each room to supply and distribute the necessary cool and hot air into the room.

Furthermore, the silencing mechanism 9 and the main prefilters 10, 10' may be installed outside the machine without being placed in each ventilation passage. Although the above air conditioning unit is used as a blower unit in a separate air conditioning system, it can also be used alone as a fan unit or a heat treatment air conditioner.

Furthermore, a suitable noise reduction mechanism is installed inside the aircraft, and a box with air supply and exhaust ports such as an outside air intake port 1 and an indoor air supply port 2 is installed as a noise reduction chamber D on the top or back of the aircraft. Sometimes they are connected integrally.

〔effect〕

As described above, the separate type air conditioning unit according to the present invention is formed with the above structure, and by forming the ventilation passages in a substantially U-shape in the front and back, the ventilation passages become longer, and various mechanical members are It can be easily placed in an appropriate location, making the overall shape extremely compact, and has the advantage that maintenance and other operations can be easily and reliably performed by simply opening the front door. have.

Furthermore, by integrally connecting the chamber D with a built-in noise reduction mechanism to the fuselage as described in claim 2, an even greater noise reduction effect can be obtained as a super noise reduction chamber, making it ideal for hotels, hospitals, research institutes, etc. This is a completely low-noise air conditioner.

[Brief explanation of the drawing]

Figure 1 is a front view showing the internal structure of a separate air conditioning unit according to the present invention, Figure 2 is the same as above,
FIG. Explanation of the symbols: A...Outside ventilation passage, B...Inner ventilation passage, C...Bypass ventilation passage, D...Sound damping chamber, 5...Total heat exchanger, 13...Damper mechanism.

Claims (1)

[Claims] 1. An outside air intake port 1, an indoor air supply port 2,
A return air port 3 and an outdoor exhaust port 4 are provided respectively, and the outdoor air intake port 1 and the indoor air supply port 2 are communicated to form a substantially U-shaped ventilation passage A, and a total heat exchanger 5 is provided in the passage. , an air supply fan 6, an electric motor 7, a controller 8, a noise reduction mechanism 9, a main filter 10, and other mechanisms are arranged as necessary, and a return air port 3 and an exhaust port 4 for indoor air are provided alongside the ventilation passage A. A communicating ventilation passage B is formed, mechanisms such as a return air port filter 10', a return air fan 11, and an electric motor 12 are arranged in the ventilation passage, and a bypass ventilation passage is provided between the two ventilation passages A and B. C is formed and a switching damper mechanism 13 is disposed in the ventilation passage C to exhaust all or part of the recirculated air from the indoor side into the ventilation passage A. Separate air conditioning unit. 2. A sound-deadening chamber D is a device box that is equipped with an appropriate sound-deadening mechanism inside the aircraft and has air intake and exhaust ports such as the outside air intake port 1 and the indoor air inlet port 2, and is placed on the top or back of the above-mentioned aircraft. 2. A separate air conditioning unit according to claim 1, which is integrally connected to the air conditioning unit.