JP3769595B2 - Air conditioner with sterilization / deodorization means - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner including a sterilizing / deodorizing means and a sterilizing / deodorizing method. More specifically, the present invention relates to an air conditioner equipped with a sterilization / deodorization means and a sterilization / deodorization method in a medical facility such as a hospital or a food manufacturing facility.
[0002]
[Prior art]
Conventionally, various types of sterilizers and methods for air conditioners have been proposed.
[0003]
(1) There are various types of sterilization of microorganisms, such as ozone gas, ultraviolet lamps, and drugs, in the inside of air conditioners and in indoor and other spaces that require sterilization such as hospital hospitals and food production.
[0004]
(2) Some air conditioners are equipped with sterilization / deodorization means in the air such as an ozone generator and an ozone decomposition catalyst device (for example, see JP-A-8-114332).
[0005]
(3) Or an ozone generator is provided inside the air conditioner to generate ozone when the room requiring sterilization is unattended, and to sterilize and deodorize the air conditioner itself and the room (for example, JP-A-5-322220) Issue gazette).
[0006]
(4) Some air conditioners have a sheet filter containing an antibacterial agent such as silver zeolite in addition to an ozone generator and an ozonolysis catalyst device (for example, see JP-A-6-323571).
[0007]
Further, a sheet containing an antibacterial agent such as silver zeolite or a coating film is formed on the surface of an air conditioner or on the inner wall, heat exchanger, fan, filter or the like (for example, JP-A-7-55176). No. publication).
[0008]
(5) Some air-conditioning ducts are provided with an ultraviolet lamp, a dust collecting electrode, and the like to sterilize microorganisms (see, for example, JP-A-7-303688).
[0009]
(6) There is one provided with a photocatalyst in addition to the ultraviolet lamp (for example, see JP-A-8-121827).
[0010]
[Problems to be solved by the invention]
In the sterilization treatment performed by the conventional air conditioner described above, sterilization was not sufficient. For this reason, there is a possibility that air in which bacteria have propagated may be sent to a hospital room or a food manufacturing room, for example.
[0011]
In the prior art, the sterilization means is simply provided inside the air conditioner or in the flow path, and the air conditioner itself cannot easily be completely sterilized due to the transit through the room or the air conditioner.
[0012]
In particular, in the past, since sterilization means was provided in the air conditioner, it was not possible to intensively sterilize the room or the air conditioner itself.
[0013]
On the other hand, for example, in the example of (3), when the room is unmanned, ozone is generated to sterilize and deodorize the air conditioner itself. Even though it can be sterilized and deodorized, when there are people, that is, manned, it was impossible to sterilize and deodorize, so the working time and the like were remarkably limited to night.
[0014]
Further, since the sterilizer is provided in the air conditioner, when the sterilizer is repaired or replaced, the air conditioner has to be stopped one by one, which requires labor and cost.
[0015]
In addition, since the sterilizer is provided inside the air conditioner, the scale and capacity of the air purifier are limited due to its spatial limitations.
[0016]
Furthermore, since the sterilizer is provided inside the air conditioner, it is impossible to adjust the sterilization action as necessary.
[0017]
When it was desired to attach a sterilizer to an air conditioner without an existing sterilizer, it was a built-in method, and it was difficult to attach a new sterilizer.
[0018]
In addition, since the ultraviolet lamps that have been used in the past can be sterilized only at the irradiated part or within the reachable range of irradiation, the sterilization at the non-irradiated part is incomplete, so that the growth of bacteria can be avoided. The sterilization effect was destroyed.
[0019]
Furthermore, even when the antibacterial agent sheet is used for a long period of time, dust, oily smoke, etc. will adhere near the surface of the coating film containing the antibacterial agent, and if the direct contact with microorganisms or the closest approach is prevented, the antibacterial effect Is significantly reduced. Therefore, antibacterial action is remarkably inhibited, and the sterilization treatment performed by the above-described conventional air conditioner has not been sterilized sufficiently. For this reason, there is a possibility that air in which bacteria have propagated may be sent to a hospital room or a food manufacturing room, for example.
[0020]
In the prior art, the sterilization means is simply provided inside the air conditioner or in the flow path, and the air conditioner itself cannot easily be completely sterilized due to the transit through the room or the air conditioner.
[0021]
In particular, in the past, since sterilization means was provided in the air conditioner, it was not possible to intensively sterilize the room or the air conditioner itself.
[0022]
On the other hand, for example, in the example of (3), when the room is unmanned, ozone is generated to sterilize and deodorize the air conditioner itself. Even though it can be sterilized and deodorized, when there are people, that is, manned, it was impossible to sterilize and deodorize, so the working time and the like were remarkably limited to night.
[0023]
Further, since the sterilizer is provided in the air conditioner, when the sterilizer is repaired or replaced, the air conditioner has to be stopped one by one, which requires labor and cost.
[0024]
In addition, since the sterilizer is provided inside the air conditioner, the scale and capacity of the air purifier are limited due to its spatial limitations.
[0025]
Furthermore, since the sterilizer is provided inside the air conditioner, it is impossible to adjust the sterilization action as necessary.
[0026]
When it was desired to attach a sterilizer to an air conditioner without an existing sterilizer, it was a built-in method, and it was difficult to attach a new sterilizer.
[0027]
In addition, since the ultraviolet lamps that have been used in the past can be sterilized only at the irradiated part or within the reachable range of irradiation, the sterilization at the non-irradiated part is incomplete, so that the growth of bacteria can be avoided. The sterilization effect was destroyed.
[0028]
Furthermore, even when the antibacterial agent sheet is used for a long period of time, dust, oily smoke, etc. will adhere near the surface of the coating film containing the antibacterial agent, and if the direct contact with microorganisms or the closest approach is prevented, the antibacterial effect Is significantly reduced. Therefore, the antibacterial action is remarkably inhibited and invasion of bacteria and the like is inevitable.
[0029]
It is an object of the present invention to obtain an apparatus and a method that can sufficiently sterilize and deodorize air in a room, an air conditioner, and a flow path associated therewith, which improve the above problems. More specifically, it is an object of the present invention to obtain an apparatus and method that can sterilize and deodorize in a necessary and sufficient manner according to manned and unmanned.
[0030]
In order to solve the above-described problems, in the air conditioner of the present invention, in an air conditioner including an air conditioner connected to a room via a flow path, air is supplied to the air conditioner in parallel via the flow path and flow path switching control means. A purifier is provided separately, and according to manned or unmanned conditions, the room and the air conditioner are provided with switching control means for switching the flow path for sterilization / deodorization of each or both, and the air purifier is a sterilization / deodorization means. An ozone generator and an ozone decomposition catalyst device provided with a member for opening and closing a flow path from the ozone generator are provided, and one of the flow paths on the outlet side of the air purifier is a blower provided on the outlet side of the air conditioner The other is joined to the flow path on the outlet side of the air conditioner and the outside of the air conditioner and heads into the room. An air conditioner that can sterilize and deodorize the machine at the same time. It is to provide.
[0031]
The member that opens and closes the flow path of the ozone decomposition catalyst device is responsive to the operation of the ozone decomposition catalyst device when manned or unmanned.
[0032]
As the sterilizing / deodorizing means, ozone gas is used. Ozone is employed not only for strong sterilization but also for deodorization.
[0033]
An antibacterial means can be provided in the air conditioner, and an ultraviolet lamp and a photocatalyst can be provided in the air purifier. In addition to the strong ozone gas, it is complemented by these interactions, and has a further sufficient sterilization and deodorizing action.
[0034]
After the room is unmanned, the air conditioner is stopped, and the ozone gas-containing air from the air purifier is guided to the room and / or the air conditioner within the stop time, and the room and / or the air conditioner is sterilized and deodorized. Maintain the state of the flow that circulates to the air purifier, maintain the ozone concentration in the air conditioner and / or the chamber at a predetermined value for a predetermined time, and then convert the ozone-containing air into the ozone decomposing device in the air purifier. Operates and passes, decomposing and detoxifying ozone.
[0035]
When the room is manned, a part of the air is led from the air conditioner to the air purifier, and the ozone gas-containing air from the air purifier is routed by operating the ozone decomposing device to decompose and detoxify ozone. , To send to the room.
[0036]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described based on an example with reference to the drawings. FIG. 1 shows an embodiment of the present invention.
[0037]
FIG. 1 shows an embodiment of the present invention. An air conditioner 1, an air purifier 2, a hospital room, a food manufacturing factory 3 and the like, an outside air inlet 27 and the like are shown.
[0038]
As in the conventional case, the air enters the air conditioner 1 from the outside air inlet 27 through the filter 4, the duct 45, and the automatic switching valve 30 with an actuator.
[0039]
FIG. 1 shows a pre-filter 5, a medium performance filter 6 (or an electric dust collector 7), a heat exchanger 8, a humidifier 10, a blower 9, a heat insulating material 19, and a casing 37 in the air conditioner 1.
[0040]
In addition, a drain pan 11 and a draining eliminator 20 are provided.
[0041]
The ozone concentration sensor 36 is preferably provided on the front side of the air conditioner 1. This is because when the air conditioner 1 is not a direct target for sterilization / deodorization (only a room is targeted), detection is accelerated. Of course, the sensor may be provided in another room or the like, but if it is provided in such a place, only one sensor is required.
[0042]
On the inner surface of these air conditioners, an antibacterial agent can be contained in the coating film and held. In this case, an antibacterial agent is contained in the paint, etc., and is applied by baking, roller coating, spraying, or the like.
[0043]
As the antibacterial agent, inorganic materials such as silver, zinc oxide, and copper are used alone or in combination. By the action of the antibacterial agent, the growth of microorganisms such as bacteria and mold on or near the surface of the coating film is suppressed, and can be reduced and sterilized.
[0044]
In order to obtain a more sufficient sterilizing effect, an ultraviolet lamp 13 can be provided inside the air conditioner 1. Moreover, the photocatalyst 22 can also be provided in the inner wall of the air conditioner 1 as a film containing a photoexcitation catalyst instead of the antibacterial coating film.
[0045]
Inside the air purifier 2 are a pre-filter 5, a medium performance filter 6 (or an electric dust collector 7), an ultraviolet lamp 13, a photocatalyst 14, an ozone generator 15, an ozone supply port 16, an ozone decomposition catalyst device 17, and a damper 18. , A fan 12 and the like are provided.
Note that the ultraviolet lamp 13 may be provided in front of the prefilter 5.
Further, since the fan 12 is provided at the rear portion of the air purifier 2, the fan 12 is a suction type, and ozone gas does not leak to the outside as compared with the pressurization type.
[0046]
The damper 18 can be moved to the position of the dotted line as shown in FIG.
The movement of the damper 18 requires that the flow path be opened and ozone be decomposed by the ozone decomposition catalyst device 17 when circulating air is sent to the manned chamber 3, and therefore the ozone decomposition catalyst device 17. It is moved to circulate through it.
[0047]
Automatic switching valves 28, 29 and 30 are provided in the middle of the duct for switching the circulating air to the room or the air conditioner. Furthermore, automatic switching valves 31 and 32 and a check valve 33 are provided in order to perform effective circulation according to unmanned personnel (see FIGS. 1 and 2).
In addition, a flow rate control valve 34 that restricts the amount of flow into the air purifier 2 is provided in the duct 44 in order to adjust the sterilization / deodorization action.
Further, for the purpose of repairing / inspecting / replacement of the air purifier 2, a closing valve 35 may be provided before and after the air purifier 2 is removed.
[0048]
Although the automatic switching valve 32 is provided in the duct 46, it is connected to the so-called suction side of the blower 9 of the air conditioner 1. However, if the air conditioner 1 is operated, it is automatically sucked and no special suction device is required. .
[0049]
In particular, without providing the automatic switching valves 31 and 32 and the check valve 33, the portion A shown in FIG. 3 can have a so-called jet pump type suction configuration as shown in FIG.
As an example shown in (1) of FIG. 4, a venturi pipe 50 may be provided, and the flow on the duct 40 side may be sucked from the nozzle 410 by the jet flow from the duct 41. The air discharged from the blower 9 becomes a jet and sucks the flow on the duct 40 side. As shown in 2 of FIG. 4, the flow on the duct 40 side may be sucked by a jet from the duct 41.
The air discharged from the blower 9 is jetted by the nozzle 410 and sucks the flow on the duct 40 side. These suction configurations can be appropriately selected by those skilled in the art depending on the pressure and flow rate of each flow.
[0050]
Thus, there is a configuration in which the switching control means is based on the use of a switching valve or the suction system is based on a combination of, for example, a jet pump type.
[0051]
The features of the germicidal and deodorizing system for pathogenic bacteria are described in detail below. In the air purifier 2, the components of the sterilization / deodorization system are prefilter 5, medium performance filter 6 (or electrostatic precipitator 7), ultraviolet lamp 13, photocatalyst 14, and ozone generator 15 for untreated air. The order of the ozone decomposition catalyst device 17 and the fan 12 is as follows.
[0052]
Further, an ultraviolet lamp 13 may be provided in front of the prefilter 5. First, when an ultraviolet lamp 13 having a wavelength of 254 mm is provided and irradiated, airborne bacteria contained in the non-processed air cause the thermal energy of the ultraviolet lamp 13 to damage bacterial DNA. The self-proliferation function is reduced by ming dimer formation.
[0053]
For airborne bacteria contained in non-treated air after treatment, a combination of ultraviolet light having a specific wavelength and a photocatalyst is effective.
That is, the feature of the titanium oxide photocatalyst system is that the reaction occurs when the surface comes into contact with water. Because of its adsorptive properties, if it is not completely dry, it will react even when it comes in contact with air.
[0054]
For the titanium oxide photocatalyst, an ultraviolet ray having a wavelength range of 315 to 400 nm is preferably suitable for exciting the photocatalyst. When an ultraviolet lamp having a wavelength of about 400 nm hits the surface of titanium oxide, a strong oxidation potential of 3v is generated, and water is decomposed to generate active oxygen. This is an oxidation potential larger than that of chlorine, hydrogen peroxide, ozone, etc., and is such that almost all can be decomposed and oxidized.
[0055]
Therefore, when the UV lamp 13 in the subsequent stage is irradiated, the light activates the titanium oxide photocatalyst 14 (anatase type) having a redox potential of 3 V, generates active oxygen, and destroys bacterial spores and verotoxins.
[0056]
On the other hand, the ultraviolet lamp 13 without a photocatalyst in the previous stage may be a normal sterilizing lamp having a wavelength of 100 to 280 nm. This is because the photocatalyst has an effect of causing its action but is low.
As described above, the normal sterilization is performed in the previous stage, and the sterilization effect can be improved by irradiating the photocatalyst by changing the wavelength of the ultraviolet light.
[0057]
When the two-stage ultraviolet irradiation is reversed, the active oxygen changes the surface layer of the spore and a part of the DNA inside the spore, and the generation of TDHT in the spore is suppressed during the ultraviolet irradiation, so that it is completely sterilized. This is because some bacteria cannot be used and the sterilization effect is reduced.
[0058]
Thereafter, the bacterial spores whose DNA has been deformed are damaged again by the ozone gas having an oxidation-reduction potential of 2.8 V generated by the ozone generator 15, causing a decrease in lysis and stopping the growth of the bacteria. The ozone treatment is performed after the photocatalyst because the photocatalyst has a higher oxidation-reduction potential.
[0059]
If the ultraviolet lamp 13 or the photocatalyst is used in addition to the ozone gas in this way, the sterilizing action can be complemented with the advantages of each other. That is, ozone gas can be filled and sterilized even outside the range where ultraviolet rays cannot reach, and when ultraviolet rays or photocatalysts are used, ozone gas can easily damage the spores of cells and provide a further sterilizing effect.
[0060]
When supplying air into the room, the damper 18 is moved below the dotted line in FIG. 1, the flow path is opened, and the ozone decomposition catalyst device 17 performs ozone decomposition to supply 0.1 ppm or less ozonized air. I care. The ozonolysis catalyst device 17 is made of manganese oxide, so that the ozonolysis can be efficiently performed even in a low temperature region, and the sterilization / deodorization effect can be expected even with active oxygen generated during the ozonolysis.
[0061]
In order to avoid a decrease in the effect due to a water film or dirt generated on the surface of the ozone decomposition catalyst device 17, a heater 21 is provided. Desorption and regeneration functions are provided by the warm air of the heater heated to around 50 degrees.
[0062]
In the air conditioner 1, an antibacterial agent that can be expected to be always effective for the heat exchanger 8, the filter 6, the prefilter 5, the heat exchanger 8, the blower 9, the humidifier 10, the drain pan 11, the eliminator 20, the air conditioner casing 37, and the like. Can be used. Antibacterial agents are inorganic antibacterial agents that are safe and have high heat resistance.
[0063]
Inorganic antibacterial agents have a broad antibacterial spectrum and have the effect of not causing resistant bacteria. As a method for maximizing the sterilizing / deodorizing effect, the antibacterial effect can be improved by improving the dispersibility when the antibacterial agent is mixed with the paint and floating on the surface.
[0064]
Bacteria that have come into contact with the antibacterial agent die by lysis due to the destruction of proteins by metal ions (eg, silver, zinc, copper ions, etc.). The air conditioner 1 is mainly provided with a function of sterilizing and deodorizing the fallen bacteria. With the above configuration, it is possible to sterilize and deodorize systematically.
[0065]
If a coating film containing an antibacterial agent is applied to the inside of the air conditioner 1, the growth of bacteria or the like is normally suppressed inside the air conditioner 1, and it is always sterilized regardless of whether no ozone gas is generated.
[0066]
In this way, the antibacterial agent can be expected not only at the time of gas generation like ozone gas, but also at all times, and if used in combination with ozone gas, it becomes possible to further extinguish bacteria, and the sterilization time using only ozone gas As well as cost.
[0067]
In the case where dust or oily smoke adheres to the inner surface of the air conditioner 1, in the present invention, as a result of providing the air purifier 2, the air conditioner 1 is continuously operated for repeated sterilization and deodorization. The deposit inside is removed.
[0068]
The air conditioner 1 includes a heat exchanger, a humidifier, and the like, and in summer and the like, microorganisms are propagated due to a humid environment. However, the air purifier 2 is low in humidity and has a strong sterilizing action by ozone gas, and is always operated and receives the action, so that it is not necessary to apply an antibacterial agent. Therefore, an antibacterial agent is applied to the air conditioner 1 and an antibacterial agent is not applied to the air purifier 2, and the combination of ozone gas, ultraviolet light and a photocatalyst is an effective array for sterilization and deodorization.
Hereinafter, an operation method for performing sterilization / deodorization according to conditions will be described.
[0069]
In performing sterilization / deodorization, the following processing method is performed in the general room or the air conditioner when manned or unmanned. In addition, about the Example in the case of FIG. 1, the switching of a valve is demonstrated with reference to FIG. 5 about each following processing method.
(1) Indoor sterilization and deodorization when unattended
(2) Sterilization and deodorization of air conditioners when unmanned (or manned)
(3) Sterilization and deodorization of indoors and air conditioners when unattended
(4) Intake of circulating air that has been sterilized and deodorized indoors when manned
[0070]
(1) The sterilization and deodorization in the room when unattended will be explained.
When there are no people in the room 3 such as at night, no ozone is introduced into the room and maintained at a predetermined concentration for a certain period of time. Thereby, the inside of a room can be sterilized.
[0071]
When there is no person inside the room 3 such as at night, so-called unattended, the automatic switching valves 28 and 29 are opened, and the ozone-containing air is guided from the air purifier 2 to the inside of the room 3 through the ducts 40, 42 and 43.
[0072]
In this case, since it is unattended, since the operation of the air conditioner 1 is normally stopped, if the automatic switching valve 31 is closed, useless circulation is stopped.
[0073]
While maintaining this state, the operation of the ozone generator 15 is stopped when the concentration of the ozone concentration sensor 36 reaches a predetermined value. The operation of the fan 12 inside the air purifier 2 is stopped. The interior of the chamber 3 is sterilized when a predetermined time elapses while maintaining the ozone concentration inside the chamber 3.
[0074]
Thereafter, the operation of the fan 12 of the air purifier 2 is resumed. However, at this time, the switching damper 18 moves to the position of the broken line in FIG. In this way, the air inside the chamber 3 circulates, and ozone is decomposed by the action of the ozone decomposition catalyst device 17.
Hereinafter, in each Example, the operation | movement of the ozone decomposition catalyst apparatus after disinfection and deodorizing is performed similarly.
[0075]
Thus, the ozone concentration in the zero atmosphere inside the chamber 3 decreases and reaches the human safety tolerance limit or less. At that time, the operation of the air purifier 2 is stopped. Then, the operation of the air conditioner 1 can be resumed.
[0076]
(2) The sterilization and deodorization of the air conditioner when unmanned (manned) will be described.
[0077]
In the air purifier 2, air flows from the air conditioner 1 through the duct 44. The light is guided to the rear duct 41 of the blower 9 through the duct 40 through areas such as the ultraviolet lamp 13, the photocatalyst 14, the ozone supply port 16, and the fan 12.
[0078]
When the automatic switching valves 28 and 29 are closed, the automatic switching valve 31 is opened and the inflowing air is returned to the inside of the air conditioner 1. At this time, the air inside the air conditioner 1 circulates through the inside of the air purifier 2.
If necessary, the automatic switching valve 32 can be opened to circulate the portion of the air conditioner 1 excluding the blower 9.
[0079]
As a result, the ozone concentration in the air conditioner 1 and the air purifier 2 increases, and the operation of the ozone generator 15 is stopped when the ozone concentration sensor 36 reaches a predetermined concentration. By maintaining the ozone concentration inside the air conditioner 1 within a predetermined range for a certain time, the inside of the air conditioner 1 and the air purifier 2 is sterilized.
[0080]
The fact that the air conditioner can be sterilized and deodorized even when manned is readily understood by closing the automatic switching valves 28 and 29 thereafter.
(3) Sterilization and deodorization of indoors and air conditioners when unattended
Air flows from the air conditioner 1 through the duct 44. The light is guided to the duct 40 through areas such as the ultraviolet lamp 13, the photocatalyst 14, the ozone supply port 16, and the fan 12.
In this case, since the air conditioner 1 is stopped, if the automatic switching valves 28 and 31 are opened, the air conditioner 1 flows into the air conditioner 1 and the chamber 3 to perform sterilization and deodorization.
[0081]
Further, the automatic switching valve 32 can be opened to allow ozone-containing air to flow into the air conditioner 1 from the duct 46. Both of the automatic switching valves 31 may be opened, or one of them may be opened as necessary.
[0082]
(4) The supply of sterilized and deodorized circulating air into the room when manned will be described.
Further, even in the room 3 where people are always present, a part of the air is guided to the air purifier 2 and the sterilization and deodorizing actions are performed by the action of the ozone generator 15 and the ozone decomposition catalyst device 17 described above. be able to.
[0083]
In this case, the automatic switching valve 31 is opened and the flow from the air conditioner 1 is directed to the chamber 3.
The sterilized and deodorized air from the air purifier 2 is connected to the suction side of the blower 9 by opening the automatic switching valve 32 when the discharge pressure of the blower 9 is larger than the pressure of the air purifier 2. Automatically flows into the air conditioner 1 through the duct 46.
Flow from the duct 41 is blocked in the duct 40 due to the check valve 33.
[0084]
When the air conditioner is normally operated, the position of the switching damper 18 of the air purifier 2 is moved to the broken line side, the ozone decomposition catalyst device 17 is operated, and the air purifier 2 is operated. Air passing through 2 is sterilized.
[0085]
The sterilized air is supplied to the chamber 3 through the duct 40 and the like. By performing such air circulation, the sterilization action in the air in the chamber 3 is continuously performed. The ozone from the ozone generator 15 is decomposed and detoxified by the action of the ozone decomposition catalyst device 17.
[0086]
Even when the air conditioner is not in operation, the automatic switching valves 31 and 32 can be closed to send sterilized and deodorized circulating air.
[0087]
When manned, sterilized and deodorized air in the room and air conditioner can be circulated, but if it is not necessary to circulate sterilized and deodorized air to the air conditioner, the automatic switching valves 31 and 32 may be closed. .
[0088]
Also, as an antibacterial means, dust and oily smoke adhering to the part coated with the antibacterial sheet or paint are removed by circulating ozone gas or simply circulating air.
[0089]
As described above, according to the present invention, the circulated air can be sent to the room and / or the air conditioner for sterilization / deodorization or, when manned, as needed, when the sterilization / deodorization is performed.
[0090]
In the above embodiment, the case where the automatic switching valves 31 and 32 and the check valve 33 are provided has been described. The case where the portion A shown in FIG. 3 is also provided as a so-called jet pump type suction structure as shown in FIG. 4 will be described below.
Since the same applies to 2 in FIG. 4, the description is omitted.
(1) Indoor sterilization and deodorization when unattended
(2) Sterilization and deodorization of air conditioners when unmanned (or manned)
(3) Sterilization and deodorization of indoors and air conditioners when unattended
(4) Intake of circulating air that has been sterilized and deodorized indoors when manned
[0091]
(1) Indoor sterilization and deodorization when unattended
When the air conditioner 1 is stopped, the automatic switching valve 31 is closed, and the ozone-containing air is directly led to the chamber 3 through the ducts 40 and 42 and circulates to the air purifier 2 through the ducts 43 and 44. .
[0092]
(2) Sterilization and deodorization of air conditioners when unmanned (or manned)
Since the automatic switching valve 28 is closed and the automatic switching valve 31 is open when the air conditioner 1 is stopped, the ozone-containing air is guided to the air conditioner 1 through the duct 41 side, passes through the duct 44, and the air Return to the purifier 2.
[0093]
(3) Sterilization and deodorization of indoors and air conditioners when unattended
When the air conditioner 1 is stopped, the automatic switching valves 28 and 31 are opened, and the ozone-containing air passes through the nozzle 41 of the duct 40 of the venturi 50 and sucks air from the duct 41 and passes through the duct 42. Guided to chamber 3. The air guided from the chamber 3 to the air conditioner 1 goes to the air purifier 2 and the blower 9. The flow from the blower 9 toward the duct 41 is sucked and circulates.
The flow from the chamber 3 passes through the duct 44 and circulates to the air purifier 2.
(4) Intake of circulating air that has been sterilized and deodorized indoors when manned
When the air conditioner 1 is in operation, the automatic switching valves 28 and 31 are opened, and the ozone-containing air is led to the chamber 3 through the duct 42 and circulates through the duct 44 to the air purifier 2 by the suction effect. .
[0094]
By providing the above configuration, the same operation can be performed.
Of course, if the chamber or air conditioner is sterilized and deodorized, the flow path associated therewith can be sterilized and deodorized.
[0095]
【The invention's effect】
An air purifier is provided in parallel with the air conditioner, and consists of switching control means, an ozone generator, and an ozonolysis catalyst device for switching the chamber and air conditioner individually or both for sterilization and deodorization according to manned or unmanned conditions. Because it is equipped with sterilization / deodorization means, it can selectively and sufficiently perform sterilization and deodorization treatment of air in indoors, air conditioners, and associated channels, etc., as needed. In response to this, sterilization and deodorization can be performed sufficiently and sufficiently.
[0096]
Since the ozone generator and the ozone decomposition catalyst device are provided as the sterilization / deodorization means, not only the strong sterilization power of ozone gas but also a deodorization effect can be sufficiently expected.
[0097]
In the past, sterilization and deodorization were impossible when there were people, that is, manned, so the working hours were significantly limited at night, etc. Therefore, it was possible to sufficiently perform sterilization and deodorization of each room, the air conditioner, and the flow path associated therewith.
[0098]
In particular, the ozone decomposition catalyst device is provided with a member that opens and closes the flow path in the flow path, so that it can be sterilized and deodorized even when manned, and can be sterilized and deodorized regardless of whether it is unmanned. became.
[0099]
In the prior art, sterilization means is simply provided inside the air conditioner or in the flow path, and because the air conditioner itself is transient, the air conditioner itself could not be completely sterilized. However, it was decided that each individual could be intensive and continuous.
In particular, in the present invention, it is possible to sterilize and deodorize the air conditioner in a concentrated manner.
[0100]
Conventionally, since a sterilizer is provided in the air conditioner, when the sterilizer is repaired or replaced, the air conditioner must be stopped one by one. Due to the limitations of the air purifier, the size and capacity of the air purifier were limited, but the air purifier was placed in parallel with the air conditioner, so that repairs and replacements were possible at any time. Can be done as needed.
[0101]
Furthermore, since the conventional air-conditioning system has a structure in which a sterilizer is provided, it was impossible to adjust the sterilization function as necessary. However, an air purifier was separately provided as described above. So it became possible.
[0102]
When it was desired to attach a sterilizer to an air conditioner without an existing sterilizer, it was difficult to install a new sterilizer because it was a built-in method. became.
[0103]
In addition, since the ultraviolet lamps that have been used in the past can be sterilized only at the irradiated part or within the reachable range of irradiation, the sterilization at the non-irradiated part is incomplete, so that bacterial growth is avoided. However, the sterilization effect was annihilated, but the ozone gas could be filled and sterilized even outside the range where ultraviolet rays could not reach, and further effects were obtained when used in combination with ozone gas.
[0104]
Furthermore, if antibacterial means is provided in the air conditioner, in addition to the strong sterilizing power of ozone gas, further, sterilizing action can be expected at all times regardless of whether ozone gas is generated or not. It becomes possible to extinguish bacteria strongly, and the sterilization time by using only ozone gas can be shortened and the cost can be reduced.
[0105]
In addition to ozone gas, use an ultraviolet lamp and a photocatalyst, irradiate with normal ultraviolet rays at the previous stage, and irradiate with ultraviolet rays that generate photocatalytic active oxygen, add ozone gas at the next stage, The sterilization effect can be further increased.
[0106]
Furthermore, even if the antibacterial agent sheet is used for a long period of time, dust and oily smoke adhere to the surface of the coating film containing the antibacterial agent. However, since ozone gas or circulating air is circulated in the air conditioner, dust and oily smoke Are prevented from adhering.
[Brief description of the drawings]
FIG. 1 shows an embodiment of an air conditioner according to the present invention.
FIG. 2 shows a cutoff valve mechanism as switching control means of the air conditioner of the present invention.
FIG. 3 shows another embodiment as a switching control means of the air conditioner of the present invention.
4 shows an enlarged view of a portion A in FIG. 3;
FIG. 5 shows a sterilization / deodorization method of the present invention when manned or unmanned.
[Explanation of symbols]
1 Air conditioner
2 Air purifier
3 rooms
4 filters
5 Pre-filter
6 Medium performance filter
7 Electric dust collector
8 Heat exchanger
9 Blower
10 Humidifier
11 Drain pan
12 fans
13 UV lamp
14 Photocatalyst
15 Ozone generator
16 Ozone inlet
17 Ozone decomposition catalyst device
18 Damper
19 Insulation
20 Eliminator
21 Heater
22 Photocatalytic film
27 Outside air intake
28 Automatic switching valve
29 Automatic switching valve
30 Automatic switching valve
31 Automatic switching valve
32 Automatic switching valve
33 Check valve
34 Flow control valve
35 valves
36 Ozone concentration sensor
37 Casing
40 Duct
41 Duct
42 Duct
43 Duct
44 Duct
45 Duct
46 Duct
50 Venturi tube

Claims (3)

  In an air conditioner equipped with an air conditioner connected to a room via a flow path, an air purifier is separately provided in parallel to the air conditioner via a flow path and a flow path switching control means. The air purifier is provided with a switching control means for switching the flow path for sterilization / deodorization of each or both of the air conditioners, and the air purifier opens and closes the ozone generator as the sterilization / deodorization means and the flow path from the ozone generator. One of the flow paths on the outlet side of the air purifier is provided on the suction side of the blower provided on the air conditioner outlet side, and the other is provided on the air conditioner outlet side. The flow path and the outside of the air conditioner are joined and headed indoors, and the room and the air conditioner can be sterilized and deodorized simultaneously by the flow path switching control means even when the air purifier is operated alone. Air conditioner   Provide a flow path from the outlet side of the air purifier to the suction side of the blower provided on the outlet side of the air conditioner so that the flow path can be opened and closed, and the flow path for ozone-containing air is directly connected to the air conditioner. The air conditioner according to claim 1, wherein the air conditioner can be closed.   The air conditioner according to claim 1 or 2, wherein a venturi pipe is provided in a flow path on the outlet side of the air conditioner so as to suck a flow from the flow path on the outlet side of the air purifier.

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