JP2022042589A - Hall air conditioning system - Google Patents

Abstract

[Problem] To provide a hall air conditioning system that can improve air conditioning efficiency while taking measures against the new coronavirus infection. [Solution] A first flow path 30 through which conditioned air, which is obtained by heat-exchanging external air taken in from outdoors 16 with a heat exchanger section 18, flows through it, and a second flow path through which feedback air taken in from inside the pachinko hall 12 flows through. 32, an indoor unit section 20 that blows out a mixture of air-conditioned air flowing through the first flow path 30 and feedback air flowing through the second flow path 32 into the pachinko hall 12; The third flow path 34, through which the taken-in discharge air exchanges heat with external air by the heat exchanger section 18 and is discharged to the outdoors 16, and the feedback air are sterilized with bacteria contained therein. The first ultraviolet ray generating section 36 irradiates ultraviolet rays for the purpose of irradiating ultraviolet rays. [Selection diagram] Figure 1

Description

The present invention relates to a hall air conditioning system.

In recent years, due to the influence of the new coronavirus infection, each facility such as commercial facilities is required to take measures against infectious diseases. As a space where a large number of people are crowded, for example, various measures are being considered in pachinko halls.

As a technique related to the present invention, for example, in Patent Document 1, in a pachinko hall in which a large number of islands on which gaming tables such as a plurality of pachinko machines are installed are arranged, an exhaust that sucks air in a passage between the islands is sucked into the islands. Ventilation systems in amusement facilities such as pachinko halls characterized by the arrangement of ducts are disclosed.

Japanese Unexamined Patent Publication No. 10-15217

In pachinko halls in the summer, it is necessary to circulate the cooled air in the hall and to ventilate the air in the hall as appropriate. From the viewpoint of measures against new coronavirus infections, it is preferable to ventilate so that all the air is replaced, but there is a problem that the air conditioning efficiency is lowered when all the air is replaced.

An object of the present invention is to provide a hall air-conditioning system capable of improving air-conditioning efficiency while taking measures against a new type of coronavirus infection.

In the hall air conditioning system according to the present invention, the first flow passage through which the air conditioning air taken in from the outside is exchanged by the heat exchanger and the second flow passage through which the feedback air taken in from the hall is passed. And, the indoor unit portion that blows out the mixed air that is a mixture of the air-conditioning air flowing through the first flow passage and the feedback air flowing through the second flow passage into the hall, and taken in from the inside of the hall. In order to sterilize the bacteria contained in the feedback air and the third flow passage that flows to exchange heat with the external air by the heat exchanger unit and discharge the exhaust air to the outside. It is characterized in that it is provided with an ultraviolet generation unit that irradiates the air with ultraviolet rays.

Further, in the hall air conditioning system according to the present invention, it is preferable that the ultraviolet ray generating portion is provided in the second flow passage so that the ultraviolet rays irradiate the feedback air.

Further, in the hall air conditioning system according to the present invention, it is preferable that the ultraviolet generating portion is provided in the indoor unit portion so that the ultraviolet rays irradiate the mixed air.

Further, in the hall air conditioning system according to the present invention, the ultraviolet generating portion is an ultraviolet lamp extending in a rod shape, and the ultraviolet lamp has the second flow passage so that the extending direction coincides with the direction in which air flows. It is preferable that it is mounted inside.

Further, in the hall air-conditioning system according to the present invention, the ultraviolet generating portion is an ultraviolet lamp extending in a rod shape, and the ultraviolet lamp is attached to the indoor unit portion so that the extending direction coincides with the direction in which air flows. It is preferable that it is attached.

Further, in the hall air conditioning system according to the present invention, an ozone generating unit for generating ozone for sterilizing bacteria contained in the feedback air is further provided, and the ozone generating unit is arranged side by side with the ultraviolet ray generating unit. It is preferable that it is.

According to the present invention, it is possible to improve the air conditioning efficiency while taking measures against the new coronavirus infection.

It is a figure which shows the hall air-conditioning system of embodiment which concerns on this invention. It is a figure which shows the state which the 1st ultraviolet ray generation part is installed in the 2nd flow passage in the hall air-conditioning system of embodiment which concerns on this invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the following, similar elements are designated by the same reference numerals in all drawings, and duplicate description will be omitted. In addition, in the explanation in the text, the reference numerals described earlier shall be used as necessary.

FIG. 1 is a diagram showing a hall air conditioning system 10 according to an embodiment of the present invention. FIG. 2 is a diagram showing a state in which the first ultraviolet light generating unit 36 is installed in the second flow passage 32 in the hall air conditioning system 10 of the embodiment according to the present invention.

The hall air conditioning system 10 includes a heat exchanger unit 18, an indoor unit unit 20, a first flow passage 30, a second flow passage 32, a third flow passage 34, a first ultraviolet light generating unit 36, and a second. It is provided with an ultraviolet light generating unit 38.

The heat exchanger unit 18 is a device used for exchanging heat energy between two fluids having different heat energies, and efficiently transfers heat from an object having a high temperature to an object having a low temperature to transfer heat to the object. It has the function of heating and cooling.

The heat exchanger unit 18 exchanges heat energy between the external air taken in from the outdoor 16 of the pachinko hall 12 via the inlet / outlet 26 and the exhaust air for discharging from the inside of the pachinko hall 12 to the outdoor 16. In the summer, it has a function of cooling the outside air and circulating it in the first flow passage 30.

The indoor unit 20 is connected to the discharge flow passage 35 by air-conditioning the mixed air in which the air-conditioned air flowing through the first flow passage 30 and the feedback air flowing through the second flow passage 32 are mixed. It has a function of blowing into the pachinko hole 12 through the air outlet 22.

The indoor unit 20 has a function of exchanging refrigerant gas with an outdoor unit (not shown) to perform air conditioning. The refrigerant gas circulates in the refrigerant pipe connecting the indoor unit 20 and the outdoor unit.

In the case of cooling operation, the refrigerant gas that has become a low-temperature liquid in the decompressor of the outdoor unit is carried to the indoor unit 20 to cool the heat exchanger. At this time, the air sucked by the fan in the indoor unit 20 is deprived of heat by the cooled heat exchanger, and the cooled air is released by the fan, so that cold wind is emitted from the indoor unit 20. become.

The refrigerant gas, which is a gas that has absorbed heat, returns to the outdoor unit and becomes a high-temperature gas in the compressor. After that, when passing through the heat exchanger of the outdoor unit, warm air is discharged from the outdoor unit because it is cooled by the fan.

During the heating operation, which is the reverse of the cooling operation, the heat of the outside air is absorbed from the outdoor unit, and the refrigerant gas that has become a high-temperature gas is carried to the indoor unit 20 by the compressor, and heat is generated by the heat of the refrigerant gas. The exchanger is warmed up. The heated heat exchanger releases heat by a fan. As a result, warm wind is emitted from the indoor unit 20.

Further, the heat of the air is sent to the outdoor unit by the refrigerant gas and released to the outside. The temperature inside the pachinko hall 12 is controlled by this heat transfer. During the heating operation, the outdoor unit absorbs the heat energy of the outside air, so that the lower the outside air temperature, the lower the heating capacity.

The first flow passage 30 is a flow path in which one end is connected to the inlet / outlet 26 and the other end is connected to the indoor unit 20. It circulates air.

The second flow passage 32 is a flow path in which one end is connected to the suction port 24 and the other end is connected to the indoor unit 20. To circulate.

The third flow passage 34 is a flow path in which one end is connected to the suction port 24 and the other end is connected to the inlet / outlet 26, and heat exchanges the exhaust air taken in from the pachinko hole 12 through the suction port 24. The instrument unit 18 exchanges heat with the outside air and distributes the heat to the outdoor 16 through the inlet / outlet 26.

The ultraviolet light generating unit 36 includes an ultraviolet lamp 37 that irradiates ultraviolet rays to sterilize bacteria contained in the feedback air, and a power supply unit 39.

The ultraviolet lamp 37 is a lamp that is stretched in a rod shape and is formed so as to radiate a large amount of ultraviolet rays, and emits a spectrum of 253.7 nm or 365 nm by electric discharge in mercury vapor. It is used in many fields that utilize the photochemical action, bactericidal action, and erythema action of ultraviolet rays.

A low-pressure mercury discharge with a pressure of about 10-2 mmHg mainly emits ultraviolet rays of 253.7 nm, so a discharge tube is made of quartz glass or ultraviolet-transmitting glass, and it is used as a sterilization lamp to sterilize bacteria contained in the feedback air. .. A high-pressure mercury discharge with a pressure of about 1 atm mainly emits ultraviolet rays of 365 nm.

The first ultraviolet light generating unit 36 is provided in the second flow passage 32 so that the ultraviolet rays irradiate the feedback air. As shown in FIG. 2, the first ultraviolet light generating unit 36 is mounted in the second flow path 32 so that the extending direction coincides with the air flowing direction. Although it is assumed that two ultraviolet lamps are used here, the number of ultraviolet lamps can be appropriately increased or decreased depending on the size of the flow path.

The second ultraviolet light generating unit 38 is provided in the indoor unit unit 20 so that the ultraviolet rays irradiate the mixed air. The second ultraviolet light generating unit 38 has the same configuration as the first ultraviolet light generating unit 36. The ultraviolet lamp is mounted on the indoor unit 20 so that the stretching direction coincides with the direction in which the air flows.

The ozone generating unit is an ozone lamp that generates ozone to sterilize the feedback air. The ozone generating part is an ozone lamp (short wavelength sterilizing lamp) using quartz glass that transmits 185 nm ultraviolet rays having an ozone generating action at the same time as 253.7 nm of sterilized ultraviolet rays.

The ozone generating section is extended in a rod shape, and is provided in the second flow passage 32 and the indoor unit section 20 together with the first UV generating section 36 and the second UV generating section 38 so as to coincide with the air flow direction. It may have been.

Subsequently, the operation of the hall air conditioning system 10 having the above configuration will be described. In the pachinko hall 12, the air conditioned by the indoor unit 20 is sent out through the outlet 22 and circulates.

The air in the pachinko hall 12 is ventilated by a ventilation device (not shown), and the exhaust air sucked from the suction port 24 flows through the third flow passage 34, is heat exchanged by the heat exchanger unit 18, and is discharged to the outdoor 16. Will be done.

Further, the external air taken in from the outdoor 16 through the inlet / outlet 26 exchanges heat with the heat exchanger unit 18 and circulates toward the indoor unit unit 20.

Here, when the air in the pachinko hall 12 is taken in from the suction port 24, the second flow passage 32 is circulated from some of the suction ports 24 as feedback air to the indoor unit 20 from the viewpoint of improving the air conditioning efficiency. Let me go.

The feedback air is air circulating in the pachinko hall 12, but if, for example, a person infected with a new coronavirus infection is present in the pachinko hall 12, the new coronavirus becomes the feedback air. If it is included, it will return to the pachinko hall 12 again via the indoor unit 20.

However, according to the hall air-conditioning system 10, in the second flow passage 32, the flow of the feedback air and the extending direction of the ultraviolet lamp 37 coincide with each other, so that the time for the feedback air to be irradiated by the ultraviolet rays is lengthened. This makes it possible to enhance the bactericidal effect.

Further, according to the hall air-conditioning system 10, since the second ultraviolet light generating unit 38 is also provided in the indoor unit unit 20, it is possible to irradiate the air in which the feedback air and the air-conditioned air are mixed. , Has the advantage of being able to sterilize more reliably.

As described above, according to the hall air-conditioning system 10, for ventilation, not all the air-conditioned air in the pachinko hall 12 is discharged to the outdoor 16, but a part of the air-conditioned air is returned as feedback air, so that the air-conditioning efficiency is high. Can be enhanced.

Further, the feedback air may contain bacteria such as a new type of coronavirus, but according to the hall air conditioning system 10, it is sterilized by ultraviolet irradiation. This has the remarkable effect of improving the air conditioning efficiency while taking measures against the new coronavirus infection.

In the above description, the bacteria contained in the feedback air are sterilized by the ultraviolet rays generated from the first ultraviolet ray generating section 36 and the second ultraviolet ray generating section 38, but the sterilizing effect can be obtained by installing only one of them. be.

Further, by installing the ozone generating unit together with the first ultraviolet ray generating unit 36 and the second ultraviolet ray generating unit 38, there is an advantage that the bactericidal effect can be further enhanced and the deodorizing effect can be enhanced.

10 hall air conditioning system, 12 pachinko hall, 16 outdoor, 18 heat exchanger, 20 indoor unit, 22 air outlet, 24 suction port, 26 inlet / outlet, 30 1st flow passage, 32 2nd flow passage, 34 3rd distribution Road, 35 exhaust passage, 36 UV generator, 36 first UV generator, 37 UV lamp, 38 second UV generator, 39 power supply.

In the hall air conditioning system according to the present invention, a first flow passage through which air conditioning air taken in from the outside is exchanged by a heat exchanger and a second flow passage through which feedback air taken in from the hall is passed. And, the indoor unit portion that blows out the mixed air that is a mixture of the air-conditioning air flowing through the first flow passage and the feedback air flowing through the second flow passage into the hall, and taken in from the inside of the hall. In order to sterilize the bacteria contained in the feedback air and the third flow passage that flows to exchange heat with the outside air by the heat exchanger unit and discharge the exhaust air to the outside. The ultraviolet generation unit includes a first ultraviolet generation unit provided in the second flow passage so that the ultraviolet rays irradiate the feedback air, and the ultraviolet rays are generated. It has a second ultraviolet light generating portion provided in the indoor unit so as to irradiate the mixed air, and the first ultraviolet ray generating portion is an ultraviolet lamp extending in a rod shape, and the ultraviolet lamp has a stretching direction. Is mounted in the second flow passage so as to coincide with the direction of air flow, the second ultraviolet light generating portion is an ultraviolet lamp extending in a rod shape, and the ultraviolet lamp has an air extending direction. It is characterized in that it is mounted on the indoor unit so as to match the flow direction of the air .

Further, in the hall air conditioning system according to the present invention, an ozone generating unit for generating ozone for sterilizing bacteria contained in the feedback air is further provided, and the ozone generating unit includes the first ultraviolet ray generating unit and the above . It is preferable that the second ultraviolet ray generating portion is arranged side by side.

Claims (6)

The first flow passage that circulates the conditioned air in which the external air taken in from the outside is heat-exchanged by the heat exchanger, and
The second flow passage that circulates the feedback air taken in from inside the hall,
An indoor unit unit that blows out mixed air, which is a mixture of the air-conditioned air flowing through the first flow passage and the feedback air flowing through the second flow passage, into the hall.
A third flow passage that circulates for discharging the exhaust air taken in from the inside of the hole to the outside by exchanging heat with the external air by the heat exchanger unit.
An ultraviolet ray generating part that irradiates ultraviolet rays to sterilize bacteria contained in the feedback air, and
A hall air conditioning system characterized by being equipped with. In the hall air conditioning system according to claim 1,
The hall air-conditioning system is characterized in that the ultraviolet ray generating portion is provided in the second flow passage so that the ultraviolet rays irradiate the feedback air. In the hall air conditioning system according to claim 1 or 2.
The hall air-conditioning system is characterized in that the ultraviolet generation unit is provided in the indoor unit unit so that the ultraviolet rays irradiate the mixed air. In the hall air conditioning system according to claim 2,
The ultraviolet ray generating portion is an ultraviolet lamp extending in a rod shape.
The hall air-conditioning system is characterized in that the ultraviolet lamp is installed in the second flow passage so that the extending direction coincides with the direction in which air flows. In the hall air conditioning system according to claim 3,
The ultraviolet ray generating portion is an ultraviolet lamp extending in a rod shape.
The hall air-conditioning system is characterized in that the ultraviolet lamp is mounted on the indoor unit portion so that the stretching direction coincides with the direction in which air flows. In the hall air conditioning system according to claim 1,
Further provided with an ozone generating unit that generates ozone for sterilizing bacteria contained in the feedback air.
The hall air-conditioning system characterized in that the ozone generating unit is arranged side by side with the ultraviolet ray generating unit.

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