JPH0548020Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to ducts in air conditioning equipment for buildings, etc., and more specifically, for example, airborne bacteria in the conditioned air sent from an air conditioner. The present invention relates to a duct section in an air conditioning system equipped with a mechanism that kills and sterilizes bacteria such as viruses and viruses within the air supply duct, making it possible to supply clean air.

[Conventional technology]

Conventionally, air conditioning equipment includes an air heating/air cooler 10 and an air cleaner 1, as shown in FIG.
1, an air filter 12, an air flow control device (damper) 13, a blower 14 and its air supply duct, etc.

However, although this air conditioning equipment supplies clean and fresh air indoors using air purifiers and air filters, it is said that it cannot sufficiently remove bacteria such as bacteria and viruses floating in the air. There's a problem.

By the way, in order to deal with such problems, conventionally,
A configuration has been proposed in which a sterilizing lamp is provided in the duct of an air conditioning equipment to sterilize indoor circulating air (see Japanese Utility Model Application Publication No. 52-37837).

According to this air conditioning equipment, indoor circulating air is sterilized by the germicidal lamp inside the duct that circulates the air, so clean air can be obtained with simple equipment.

[The problem that the idea attempts to solve]

However, the above-mentioned air conditioning equipment has the following problems. In other words, since contaminated air circulates inside the duct, the germicidal lamp installed inside the duct is
The microscopic dust in the air adheres and reduces its sterilizing power.

Work will be required to remove fine dust attached to germicidal lamps.

The dust removal work is time-consuming and the work is time-consuming.

The present invention was devised in response to the above-mentioned problem, and its purpose is to prevent the sterilizing power from being reduced due to the adhesion of fine dust circulating in the duct to the ultraviolet irradiation part, and to It is an object of the present invention to provide a duct part in an air conditioning system from which attached fine dust can be easily removed.

[Means for solving the problem] And, as a means for achieving the above object, the duct part of the air conditioning equipment is an air supply system equipped with an ultraviolet irradiation part on the wall surface of the air supply duct or the duct space in the air conditioning equipment. A sterilization mechanism is provided, and the air sterilization mechanism is composed of a central ultraviolet lamp, an ultraviolet light transmission tube such as a quartz tube that covers the periphery of the ultraviolet light lamp, and a dust wiping brush attached to the ultraviolet light transmission tube. The structure is such that either the ultraviolet transmitting tube or the dust wiping brush is rotated.

[Effect]

The duct part in the air conditioning equipment of the present invention is provided with an ultraviolet irradiation part made of an ultraviolet lamp inside the duct, and the irradiated ultraviolet rays can cause
Harmful microorganisms such as bacteria and viruses floating in the conditioned air are sterilized, and cleaner and fresher air is supplied indoors. A brush for wiping off dust adhering to the ultraviolet ray transmitting tube is provided, and either the ultraviolet ray transmitting tube or the brush for wiping dust can be rotated, so that there is no adhesion of minute dust to the ultraviolet lamp itself, and the ultraviolet rays transmitting Fine dust adhering to the tube surface can be easily removed with a dust wiping brush, and sterilized conditioned air can always be obtained without reducing the ultraviolet irradiation ability of the ultraviolet irradiation section.

〔Example〕

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

Here, FIGS. 1 and 2 show an embodiment of the present invention,
FIG. 1 is a longitudinal sectional view of the duct, FIG. 2 is a cross-sectional view of the duct, and FIG. 3 is a schematic diagram of the air conditioning equipment.

The air conditioning equipment 101 of this embodiment, like the conventional device shown in FIG. Conditioned air is blown out into the room 17 from the air outlet 16.

An air sterilization mechanism 18 equipped with an ultraviolet irradiation unit is disposed on the wall of the air duct 15 or in the duct space of the air duct 15.

The air sterilization mechanism 18 includes a central ultraviolet lamp 19.
, a quartz tube (ultraviolet transmitting tube) 20 that covers the periphery of the ultraviolet lamp 19, and a dust wiping brush 21 attached to the quartz tube 20.

An ultraviolet lamp 19 and a quartz tube 20 (which may be a cladding tube of other configurations) are fixedly disposed between the side walls of the duct 15. The ultraviolet lamp 19 is a commonly used ultraviolet lamp, and the quartz tube 20 is constructed of a tube body having a size that can sufficiently cover the ultraviolet lamp 19.

The dust wiping brush 21 is a brush or brush made of soft rubber or the like, and is rotated around the quartz tube 20 by a drive source 22.

In this embodiment, the ultraviolet lamp 19 is arranged at the tip of the air supply duct (branch duct 15') 15; In addition, two ultraviolet lamps 19 may be placed on the upper and lower walls, but each of the branch ducts (air supply ducts) 15' and 15' from the duct 15 One may be provided in the central space, or the dust wiping brush 21 may be fixed and the quartz tube 20 may be rotated.

The air conditioning equipment 101 of this embodiment is installed in the basement of a building, and branch ducts (air supply ducts) 15', 15'... are arranged from the air supply duct 15 to each floor, and the branch ducts 15', 15'... Air is blown into the room 17 from the air outlet 16.

That is, outside air a is introduced into the air conditioner 100 by driving the blower 14, the flow rate of the introduced outside air a is adjusted by the air flow rate adjustment device (damper) 13 inside the air conditioner 100, and then air filtration is performed. In the winter, the air is heated while being purified, and in the summer, it is heated while being purified. It is air-conditioned and acts only to purify the air except in winter and summer.

Then, the branch duct 1 passes through the air supply duct 15.
The conditioned air sent to 5' and 15' is sent to branch duct 1.
Irradiation is carried out by the ultraviolet lamps 19 of the air sterilization mechanisms 18 provided in the air sterilization mechanisms 18 installed in the air sterilization mechanisms 5' and 15', and the irradiation kills harmful microorganisms such as bacteria and viruses floating in the conditioned air, making it cleaner and fresher. Fine air is supplied into the room, and fine dust adhering to the quartz tube 20 is brushed off by a dust wiping brush 21 that is driven arbitrarily. (Duct opening)
The dust is collected by a filter 23 disposed in the filter 23 (note that a configuration without the filter may also be used).

By the way, in the above-mentioned embodiment, the configuration was explained in which two ultraviolet lamps forming the air sterilization mechanism were arranged, but it is also possible to have a configuration in which one or three or more ultraviolet lamps are arranged. In addition, the duct part of the present invention is not limited to central air conditioners, but can also be used in individual air conditioners (such as indoor air conditioners that are normally used in hypothetical models), such as indoor cooling devices and indoor heating devices. Of course, it can be applied.

Incidentally, the present invention is not limited to the above-described embodiments, but includes modifications that can be made without changing the gist of the present invention.

[Effect of idea]

As is clear from the above description, according to the duct part of the air conditioner of the present invention, an ultraviolet irradiation part made of an ultraviolet lamp is provided inside the duct, and the inside of the conditioned air is illuminated by the irradiated ultraviolet rays. Harmful microorganisms such as floating bacteria and viruses are sterilized, and cleaner and fresher air is supplied indoors. A brush for wiping off dust adhering to the tube is provided, and either the ultraviolet ray transmitting tube or the dust wiping brush can be rotated, so that fine dust does not adhere to the ultraviolet lamp itself and adheres to the surface of the ultraviolet transmitting tube. The fine dust can be easily removed with a dust wiping brush, and the effect is that sterilized conditioned air can always be obtained without reducing the ultraviolet irradiation ability of the ultraviolet irradiation section.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, in which FIG. 1 is a longitudinal cross-sectional view of a duct, FIG. 2 is a cross-sectional view of a duct, and FIG. 3 is a schematic diagram of an air conditioning system. 18... Air supply sterilization mechanism 18, 19... Ultraviolet lamp, 20... Quartz tube, 21... Dust wiping brush, 100... Air conditioner.

Claims (1)

[Scope of utility model registration request] An air sterilization mechanism equipped with an ultraviolet irradiation unit is installed on the wall of the air duct or in the duct space in air conditioning equipment, and the air sterilization mechanism includes a central ultraviolet lamp and a quartz tube surrounding the ultraviolet lamp. A duct for air conditioning equipment comprising an ultraviolet transmitting tube such as the above, and a dust wiping brush attached to the ultraviolet transmitting tube, and characterized in that either the ultraviolet transmitting tube or the dust wiping brush is rotated. Department.