CN115554450A - Air cleaning device and method of operation - Google Patents
Air cleaning device and method of operation Download PDFInfo
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- CN115554450A CN115554450A CN202211189428.6A CN202211189428A CN115554450A CN 115554450 A CN115554450 A CN 115554450A CN 202211189428 A CN202211189428 A CN 202211189428A CN 115554450 A CN115554450 A CN 115554450A
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- circulation tank
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
- F24F8/133—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2101/00—Chemical composition of materials used in disinfecting, sterilising or deodorising
- A61L2101/02—Inorganic materials
- A61L2101/06—Inorganic materials containing halogen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
- A61L2209/213—Use of electrochemically treated water, e.g. electrolysed water or water treated by electrical discharge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The chemical supply system (56) has a preparation supply unit (564) and a replenishment supply unit (566) for supplying a disinfectant solution to the circulation tank (54), and the control device (700) repeatedly performs an intermittent operation in which the circulation system (55), the spraying device (54), the purification ventilation path (52), and the circulation tank (54) are circulated by using the normal operation mode and the preparation operation mode as one cycle, and in the normal operation mode, the disinfectant solution stored in the circulation tank (54) is supplied from the replenishment supply unit (566) to the circulation tank (54) at a replenishment small flow rate to maintain the set concentration of the disinfectant solution, and in the preparation operation mode, the old disinfectant solution in the circulation tank (54) is discharged from the discharge system (567) to the outside of the system, the disinfectant solution is supplied from the preparation supply unit (564) at a preparation large flow rate, and the dilution water is supplied from the dilution water supply system (563) to batch-prepare a new disinfectant solution at the set concentration in the circulation tank (54).
Description
The application is a divisional application of the following applications:
application date of the original application: 2016, 06 months and 10 days
Application No. of the original application: 201680002271.8
The invention name of the original application: air cleaning device and method of operation
Technical Field
The present invention relates to an air cleaning apparatus having bacteria removing, deodorizing, dust removing, and gas removing functions, and an operation method thereof.
Background
Conventionally, there is an air cleaning device described in, for example, patent document 1. This is an apparatus for sterilizing bacteria by bringing a sterilizing solution into gas-liquid contact with bacteria in the air. The air to be sterilized flows from the upstream side to the downstream side in the ventilation path of the housing. The sterilizing solution is sprayed by the spraying device to the air to be sterilized flowing through the air flow path, the sterilizing solution descending from the air flow path is received by the circulation tank, and the sterilizing solution in the circulation tank is supplied to the spraying device. Then, from the chemical supply device, slightly acidic electrolyzed water is supplied as a stock solution of the disinfectant solution to a circulating system of the disinfectant solution formed by the circulation tank, the circulation system, the spraying device, and the air passage, and dilution water for diluting the disinfectant solution is supplied from a dilution water system.
In addition, the air cleaning device of patent document 2 includes: a housing having an air passage through which bacteria-removing air flows from an upstream side to a downstream side; a spraying device for spraying slightly acidic electrolyzed water as a bactericide solution to the air to be sterilized flowing through the air flow path; a circulation tank for receiving the bactericide solution descending from the aeration path; a circulation system for supplying the slightly acidic electrolyzed water in the circulation tank to the spraying device; and a chemical supply device for supplying the slightly acidic electrolyzed water to the circulation tank, wherein the chemical supply device has an external extraction unit for extracting the slightly acidic electrolyzed water to the outside of the case.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2013-226373
Patent document 2: japanese patent laid-open No. 2015-78785
In the above-mentioned patent documents 1 and 2, the chemical supply device is used to supply the slightly acidic electrolyzed water from the relay tank to the circulation tank at a small flow rate and supply the diluting water to the circulation tank, and the effective chlorine concentration of the bactericide solution in the circulation tank is maintained at 0.1 to 10mg/L of the set concentration, thereby maintaining the medicinal effect.
The bactericide solution and the dilution water are continuously supplied to the circulation tank, and the foreign matters transferred from the sterilization target air into the bactericide solution are discharged from the circulation tank by overflowing as needed together with the remaining amount of the bactericide solution, thereby maintaining the cleanliness of the bactericide solution in the circulation tank.
A pump is required to discharge the disinfectant solution containing the overflowing foreign matter to the outside of the system, but since the overflow is a small flow rate, it is not practical to continuously discharge the disinfectant solution by always driving the pump. Therefore, the overflowing disinfectant solution needs to be stored in a discharge tank and transferred by a pump at a proper time before being discharged to the outside of the system, which causes a problem of complicated and large-sized apparatus structure.
In addition, the circulation tank needs to be cleaned with electrolyzed water, that is, chemical cleaning, by filling only the slightly acidic electrolyzed water of the stock solution having a concentration at the time of production with the electrolyzed water at a frequency of once a day or more. However, since the slightly acidic electrolyzed water is supplied to the circulation tank by a small-flow pump via the relay tank without a flow path for directly supplying the raw liquid to the circulation tank, it takes a long time to fill the circulation tank with the slightly acidic electrolyzed water, and during this time, the operation for air cleaning needs to be stopped for a long period of time.
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air cleaning apparatus and an operation method that can simplify the apparatus structure and perform cleaning with a chemical in a short time even without a drain tank.
Means for solving the problems
In order to solve the above problem, an air cleaning device according to the present invention includes: a housing having a purge ventilation path through which bacteria-removing air flows from an upstream side to a downstream side; a spraying device that sprays a bactericidal agent solution to the air to be sterilized flowing through the purification air passage; a circulation tank for receiving the disinfectant solution descending from the purification ventilation path; a circulating system for supplying the sterilizing agent solution in the circulating tank to the spraying device; a discharge system for discharging the disinfectant solution in the circulation tank to the outside of the system; a chemical supply system for supplying a disinfectant solution to the circulation tank; a dilution water supply system for supplying dilution water for diluting the disinfectant solution; and a control device, the medicine supply system has two supply parts of a preparation supply part and a supplement supply part which supply the disinfectant solution to the circulation tank, the control device repeatedly executes intermittent operation taking a normal operation mode and a preparation operation mode as one cycle, in the normal operation mode, the disinfectant solution stored in the circulation tank circulates among the circulation system, the spraying device, the purification ventilation path and the circulation tank, and the disinfectant solution is supplied to the circulation tank at a supplement small flow rate from the supplement supply part to maintain the set concentration of the disinfectant solution, in the preparation operation mode, the old disinfectant solution in the circulation tank is discharged from the discharge system to the outside of the system, the disinfectant solution is supplied at a preparation large flow rate from the preparation supply part, and dilution water is supplied from the dilution water supply system to batch-prepare a new disinfectant solution at the set concentration in the circulation tank.
In the air cleaning apparatus according to the present invention, the control device includes a cleaning operation mode which is performed after a plurality of cycles including a normal operation mode and a preparation operation mode are performed, and in the cleaning operation mode, old bactericide solution in the circulation tank is discharged from the discharge system to the outside of the system, the bactericide solution is supplied from the preparation supply unit to the circulation tank, and the circulation tank is filled with a predetermined amount of the bactericide solution to clean the circulation tank with a chemical.
An operation method of an air cleaning apparatus according to the present invention is characterized in that an intermittent operation in which a normal operation mode and a preparation operation mode are one cycle is repeatedly performed, in the normal operation mode, a bactericide solution stored in a circulation tank is supplied to a spraying apparatus via a circulation system, the bactericide solution is sprayed from the spraying apparatus to air to be sterilized flowing through a purification air-flow path, the bactericide solution descending from the purification air-flow path is received by the circulation tank to circulate the bactericide solution, the bactericide solution is supplied from a replenishment supply unit to the circulation tank at a replenishment small flow rate to maintain a set concentration of the bactericide solution, in the preparation operation mode, an old bactericide solution in the circulation tank is discharged from a discharge system to the outside of the system, the bactericide solution is supplied from a preparation supply unit at a preparation large flow rate, and dilution water is supplied from a dilution water supply system to prepare a new bactericide solution at the set concentration in the circulation tank in batch.
In the method of operating the air cleaning apparatus according to the present invention, the cleaning operation mode is performed after a plurality of cycles including the normal operation mode and the preparation operation mode are performed, and in the cleaning operation mode, the old disinfectant solution in the circulation tank is discharged from the discharge system to the outside of the system, the disinfectant solution is supplied from the preparation supply unit to the circulation tank, and the circulation tank is filled with a predetermined amount of the disinfectant solution to clean the circulation tank with the chemical.
ADVANTAGEOUS EFFECTS OF INVENTION
As described above, according to the present invention, the intermittent operation is repeated in which the normal operation mode and the preparatory operation mode are one cycle, and in the normal operation mode, the bacteria transferred from the air to be sterilized into the bactericidal solution are sterilized while maintaining the efficacy of the bacteria by keeping the bactericidal solution at the set concentration, and the foreign matter is retained in the circulation tank. In the preparation operation mode, the old bactericide solution is discharged together with foreign matters, and the bactericide solution in the circulation tank is refreshed to restore the cleaning performance. Therefore, overflow caused by continuous supply of the disinfectant solution and the dilution water as in the conventional case does not occur, and a drain tank for temporary storage is not required. Further, the pump can be operated with high operation efficiency by discharging the entire amount of the old bactericide solution in the circulation tank at once.
In the preparation operation mode, when the bactericide solution is prepared, the bactericide solution is supplied from the preparation supply unit at a large preparation flow rate, and the dilution water is supplied from the dilution water supply system to prepare a new bactericide solution at a set concentration in a batch in the circulation tank.
In addition, in the cleaning operation mode, the bactericide solution is supplied from the preparation supply unit to the circulation tank at a large preparation flow rate, so that the circulation tank can be filled with a predetermined amount of the bactericide solution in a short time and the circulation tank can be cleaned with the chemical.
Drawings
Fig. 1 is a front view showing a schematic configuration of an air cleaning device according to an embodiment of the present invention.
Fig. 2 is a side view showing a schematic structure of the air cleaning apparatus.
Fig. 3 is an enlarged view of a main portion showing a schematic structure of the air conditioner.
Fig. 4 is a perspective view showing the air cleaning apparatus.
Fig. 5 is a schematic view showing a main part of an air cleaning apparatus according to another embodiment of the present invention.
Fig. 6 is an enlarged view showing a relay tank of the air cleaning apparatus of the embodiment.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(embodiment mode 1)
As shown in fig. 1 and 4, the air cleaning apparatus includes a door 501 on the front surface of a casing 500, an air inlet 502 at a lower position and an air supply port 503 at an upper position, and a cleaning ventilation path 52 through which the sterilization target air 51 flows from the air inlet 502 on the upstream side to the air supply port 503 on the downstream side is formed in the casing 500.
In the middle of the purge ventilation path 52 of the casing 500, a first dust screen 504, a neutral filter 505, a medium 506, the spraying device 53, an eliminator 507, a fan device 600, and a second dust screen 508 are provided in this order from the upstream side to the downstream side in the flow direction of the air to be sterilized 51.
The first dust screen 504, the neutral energy filter 505, and the medium 506 are attached to an air tunnel 509 forming a gas-liquid contact region of the purge ventilation passage 52. The medium 506 is disposed in the wind tunnel 509 so as to be inclined obliquely downward from the air inlet 502 side toward the rear side of the housing 500, and the height required for disposing the medium 506 is suppressed by this inclined disposition.
The spraying device 53 is for spraying a disinfectant solution of slightly acidic electrolyzed water along the medium 506 toward the air to be sterilized flowing through the cleaning ventilation path 52, and has a plurality of spraying nozzles 531. The spray nozzle 531 may be arranged to face obliquely downward or upward, and the spray device 53 may be arranged at a position facing the medium 506.
The slightly acidic electrolyzed water is defined herein as an aqueous solution of: the main effective component is hypochlorous acid (HCLO), pH is 5.0-6.5, and effective chlorine concentration is 10-80mg/kg.
The middle performance filter 505 captures and removes fine particles from the gas stream. The medium 506 is for holding the spray water discharged from the spraying device 53 and promoting gas-liquid contact between the sterilization target air and the bactericide solution, and is formed by, for example, forming polyvinylidene chloride fibers into a mat shape. The eliminator 507 is for trapping water droplets and mist and removing them from the air flow, and is disposed at a position above the air tunnel 509 in which the medium 506 is disposed.
A disk 510 that receives the bactericide solution that has dropped from the air tunnel 509 is disposed below the air tunnel 509, and the eliminator 507, the medium 506, the air tunnel 509, and the disk 510 are detachable from the housing 500 at the time of maintenance, and the medium 506 is detachable from the front surface side of the air tunnel 509. Further, by lifting up the eliminator 507 during operation, the spray state of the disinfectant solution can be confirmed.
A circulation tank 54 is provided below the pan 510, and the circulation tank 54 is configured to catch and store the disinfectant solution that has fallen from the purge vent path 52 and the disinfectant solution that has flowed into the pan 510. A relay tank 541 is provided inside the circulation tank 54, and a descending liquid guide plate 542 is provided so as to cover the relay tank 541.
A circulation system 55 is disposed between the circulation tank 54 and the spraying device 53, and the circulation system 55 supplies the bactericide solution in the circulation tank 54 to the spraying device 53 by a circulation pump 550.
In the circulation system 55, a circulation pump 550 that performs both the ejection and the discharge of the disinfectant solution is located below the circulation tank 54, and a three-way switching valve 551 and a check valve 552 are interposed downstream of the circulation pump 550. The drain system 567 branches from the three-way switching valve 551, and by switching the three-way switching valve 551, circulation and discharge of the disinfectant solution can be performed by using 1 circulation pump 550.
Further, since the check valve 552 prevents the bactericide solution from flowing backward in the circulation system 55 when the circulation pump 550 is stopped, the inside of the circulation system 55 is filled with the bactericide solution when the circulation pump 550 is stopped by disposing the spray nozzle 531 of the spraying device 53 so as to face upward, and noise due to the discharge of air is not generated when the circulation pump 550 is restarted.
The chemical supply system 56 is for supplying slightly acidic electrolyzed water having a stock solution of a concentration at the time of production as a bactericide solution, and includes: a generating device 561 for generating slightly acidic electrolyzed water; a water supply system 562 that supplies water to the generating device 561; a dilution water supply system 563 branched from the water supply system 562 and supplying dilution water to the circulation tank 54; the relay groove 541 described above; a preparation supply unit 564 for supplying the slightly acidic electrolyzed water from the generator 561 to the circulation tank 54 at a preparation large flow rate via the relay tank 541 and the relay tank 541; a replenishment supply unit 566 provided with a relay pump 565 and adapted to supply the slightly acidic electrolyzed water from the relay tank 541 to the circulation tank 54 by dropping the electrolyzed water at a replenishment small flow rate.
The bottom surface of the relay groove 541 is inclined downward from the one side edge 541a corresponding to the opening 564a of the supply portion 564 toward the other side edge 541b, and then inclined upward via the bottommost portion 541 c. The other side edge 541b is located lower than the one side edge 541a and has an overflow edge, and the replenishment supply portion 566 is connected to the lowest portion 541c of the relay tank 541.
In the present embodiment, the relay tank 541 is disposed inside the circulation tank 54, but may be disposed outside the circulation tank 54. However, if the relay tank 541 is disposed outside the circulation tank 54, a separate waterproof tray or the like for preventing water leakage needs to be provided. By disposing the relay tank 541 inside the circulation tank 54 as in the present embodiment, a constituent member for water leakage prevention is not required.
A three-way switching valve 564b is disposed in the dispensing supply unit 564, the external extraction unit 564c branches off from the three-way switching valve 564b, and a water supply port 564d of the external extraction unit 564c is provided in a side portion of the housing 500.
Inside the circulation tank 54, a lower limit level gauge 54a, a middle level gauge 54b, and an upper limit level gauge 54c are provided at positions corresponding to respective set liquid levels. A control device 700 that is responsible for the operation of the air cleaning device is provided on the front surface of the door body 501.
The control device 700 has a functional circuit that takes charge of a normal operation mode, a preparation operation mode, and a cleaning operation mode, and repeats an intermittent operation in which the normal operation mode and the preparation operation mode are one cycle, and executes the cleaning operation mode after performing a cycle such as the normal operation mode and the preparation operation mode a plurality of times.
In the present embodiment, the normal operation mode is about 20 to 40 minutes, the preparatory operation mode is about 65 seconds including the drainage time, and the washing operation mode is performed at a frequency of 1 or more times per day.
The operation of the above-described structure will be described below.
(normal operation mode)
The chemical supply device 56 is configured to supply the slightly acidic electrolyzed water from the relay tank 541 to the circulation tank 54 via the replenishment supply unit 566 by the relay pump 565 at a replenishment small flow rate, here, for example, 0.05L/min. The concentration of available chlorine in the sterilizing solution in the circulation tank 54 is maintained at 0.1 to 10mg/L, and the sterilizing solution in the circulation tank 54 is maintained at a diluted concentration suitable for sterilization.
In this state, the sterilizing agent solution in the circulation tank 54 is supplied to the spraying device 53 by the circulation pump 550. The spraying device 53 sprays the disinfectant solution whose concentration has been adjusted in the circulation tank 54 from the spray nozzle 531 to the air to be sterilized 51 flowing from the upstream side to the downstream side in the purge air passage 52 of the casing 500.
At this time, the liquid level in the tank is maintained between the middle level setting level of the middle level gauge 54b and the high level setting level of the upper limit level gauge 54a, and dilution water is supplied from the dilution water supply system 563 as necessary in order to compensate for the loss due to the spray loss. The supply amounts were as follows: dilution water =1:9 is supplied in a ratio.
By this spraying, foreign matters such as floating bacteria and dust contained in the air 51 to be sterilized collide with the spray water of the disinfectant solution to be captured and sterilized. The spray water of the bactericide solution that has reached the medium 506 flows down the floating bacteria and dust attached to the medium 506, and also takes out foreign matter such as floating bacteria and dust contained in the air 51 to be sterilized, and flows into the circulation tank 54.
By dropping the slightly acidic electrolyzed water at a small flow rate for replenishment into the circulation tank 54, the effective chlorine concentration of the sterilizing agent solution in the circulation tank 54 is maintained at a diluted concentration suitable for sterilization, i.e., 0.1 to 10mg/L. Therefore, bacteria flowing into the circulation tank 54 can be reliably sterilized. Further, by directly ejecting the bactericide solution to the sterilization target air 51 at a high saturation efficiency, the bactericide solution can pick up foreign substances such as floating bacteria and dust contained in the sterilization target air 51, and can remove bacteria and dust.
The air sterilized by the medium 506 passes through the eliminator 507 and is supplied to the room by the fan unit 600.
(preparation operation mode)
The three-way switching valve 551 is operated to discharge the old disinfectant solution in the circulation tank 54 from the discharge system 567 to the outside of the system by the circulation pump, thereby lowering the liquid level in the circulation tank 54 to the lower-level set level of the lower-limit level gauge 54 a.
Then, the three-way switching valve 551 is returned to the original state, and the circulation system 55 and the spraying device 53 are connected. The chemical supply system 56 supplies water from the water supply system 562 to the generator 561, electrolyzes an electrolyte solution of 2 to 21% hydrochloric acid water in the generator 561 to generate slightly acidic electrolyzed water, and supplies the slightly acidic electrolyzed water having a concentration at the time of generation as a bactericide solution to the relay tank 541 through the preparation supply unit 564 at a large flow rate for preparation, here, for example, at 5L/min.
The disinfectant solution flowing into the relay tank 541 from the opening 564a of the preparation supply unit 564 flows from the one side edge 541a toward the other side edge 541b, overflows from the other side edge 541b while washing foreign matter originating from tap water remaining in the relay tank 541, and is supplied to the circulation tank 54.
The bactericide solution having the concentration at the time of production is supplied, and the dilution water is supplied from the dilution water supply system 563 to the circulation tank 54, here, at 6L/min, for example. The supply amounts were as follows: dilution water =1:9, a bactericide solution of a predetermined concentration, that is, a new bactericide solution having an available chlorine concentration of 0.1 to 10mg/L is prepared in batches in the circulation tank 54, and the bactericide solution is stored in the circulation tank 54 at an upper predetermined level of the upper level gauge 54 c.
In this way, in the preparation operation mode, the bactericide solution is supplied from the preparation supply unit 564 at a large flow rate for preparation, and the dilution water is supplied from the dilution water supply system 563, whereby the bactericide solution can be refreshed in a short time.
In the normal operation mode, the bactericide solution is held at a set concentration to maintain the medicinal effect, and foreign matters transferred from the air to be sterilized into the bactericide solution are retained in the circulation tank. In the preparation operation mode, the old bactericide solution is discharged together with foreign matter, and the bactericide solution in the circulation tank is renewed to restore the cleaning performance. Therefore, the pump can be operated with high operation efficiency by discharging the entire amount of the old bactericide solution in the circulation tank 54 at once without requiring a drain tank for temporary storage because overflow caused by continuous supply of the bactericide solution and the dilution water as in the conventional art does not occur.
(cleaning operation mode)
In the cleaning operation mode, the three-way switching valve 551 is operated to discharge the old sterilizing agent solution in the circulation tank 54 from the discharge system 567 to the outside of the system by the circulation pump, supply the sterilizing agent solution to the circulation tank 54 from the preparation supply unit 564, and fill a predetermined amount of the sterilizing agent solution in the circulation tank 54 to perform chemical cleaning of the circulation tank 54.
In this cleaning operation mode, the sterilizing agent solution is supplied from the preparation supply unit 564 to the circulation tank 54 at a large preparation flow rate, whereby a predetermined amount of the sterilizing agent solution can be filled in the circulation tank 54 in a short time, and the circulation tank 54 can be cleaned with the chemical agent.
(removal of slightly acidic electrolyzed water)
When the slightly acidic electrolyzed water is taken out from the air cleaning apparatus, the three-way switching valve 564b is operated to connect the dispensing supply unit 564 to the external take-out unit 564c, and the slightly acidic electrolyzed water is taken out from the water supply port 564 d.
(embodiment mode 2)
In embodiment 1, the disinfectant solution overflows the circulation tank 54 from the other side edge 541b of the relay tank 541, which constitutes an overflow port. The following structure may be adopted instead of this structure.
As shown in fig. 5 and 6, the overflow pipe 591 is disposed so as to penetrate the tank bottom of the relay tank 541, the upper end opening 591a of the overflow pipe 591 is opened near the water surface of the relay tank 541 as an overflow port, and the lower end opening 591b is opened at a position below the lower setting level of the circulation tank 54. The opening 564e of the dispensing supply unit 564 is disposed below the water surface of the relay tank 541.
With this configuration, when the old bactericide solution in the circulation tank 54 is discharged and then the bactericide solution having the concentration at the time of production is supplied to the circulation tank 54, the bactericide solution in the relay tank 541 flows down the circulation tank 54 through the overflow pipe 591 and flows out below the water surface at the lower set level. Therefore, the disinfectant solution does not flap on the water surface inside the circulation tank 54, and the generation of underwater sound due to the impact thereof can be prevented. Similarly, since the disinfectant solution flowing down from the preparation supply unit 564 to the relay tank 541 flows out to below the water surface of the relay tank 541, the disinfectant solution does not hit the water surface of the relay tank 541, and the generation of a water sound due to the impact can be prevented.
Further, by opening the opening 564e of the dispensing supply unit 564 near the bottom of the relay tank 541 and toward the bottom surface, the content of the feed water accumulated in the bottom of the relay tank 541 is rolled up by the disinfectant solution discharged from the opening 564 e. Therefore, the content derived from the feed water is discharged to the circulation tank 54 via the overflow pipe 591 together with the disinfectant solution, and the intermediate tank 541 can be cleaned each time the preparation operation mode and the cleaning operation mode are performed.
(embodiment mode 3)
When the relay groove 541 is disposed outside the circulation groove 54, the other side edge 541b, which is an overflow edge, is disposed inside the circulation groove 54. In the preparation operation mode and the cleaning operation mode, the slightly acidic electrolyzed water having the concentration at the time of generation is supplied as a bactericide solution to the relay tank 541 at a large flow rate for preparation by the preparation supply unit 564. In the normal operation mode, the subacid electrolyzed water is supplied dropwise from the relay tank 541 to the circulation tank 54 at a small replenishment flow rate through the replenishment supply unit 566 by the relay pump 565, and the effective chlorine concentration of the bactericide solution in the circulation tank 54 is maintained at 0.1 to 10mg/L.
Claims (4)
1. An air cleaning device, comprising:
a housing having a purge ventilation path through which bacteria-removing air flows from an upstream side to a downstream side;
a spraying device that sprays a disinfectant solution to the air to be disinfected that flows through the purification ventilation path;
a medium that holds water to be sprayed with the disinfectant solution discharged from the spraying device;
a circulation tank for receiving the disinfectant solution descending from the purge vent path;
a circulating system for supplying the disinfectant solution in the circulating tank to the spraying device;
a discharge system for discharging the disinfectant solution from the circulation tank to the outside of the system;
a chemical supply system that supplies the circulating tank with a disinfectant solution;
a dilution water supply system for supplying dilution water for diluting the disinfectant solution; and
a control device for controlling the operation of the motor,
the chemical supply system has two supply parts, a preparation supply part and a replenishment supply part, for supplying the disinfectant solution to the circulation tank,
the control device repeatedly performs intermittent operation in which the normal operation mode and the preparation operation mode are one cycle,
in a normal operation mode, the bactericide solution stored in the circulation tank is circulated among the circulation system, the spraying device, the ventilation path for purification, and the circulation tank, and the bactericide solution is supplied from the supply part for replenishment to the circulation tank at a small flow rate for replenishment to maintain the set concentration of the bactericide solution,
in the preparation operation mode, old bactericide solution in the circulation tank is discharged from the discharge system to the outside of the system, the bactericide solution is supplied from the preparation supply unit at a large preparation flow rate, dilution water is supplied from the dilution water supply system, and new bactericide solution of a set concentration is prepared in batches in the circulation tank,
the medium is disposed in the interior of the wind tunnel forming the gas-liquid contact region of the purge ventilation path so as to be inclined obliquely downward from the air inlet side toward the rear side of the housing.
2. The air cleaning device of claim 1,
the control device has a cleaning operation mode which is executed after a plurality of cycles consisting of a normal operation mode and a preparation operation mode,
in the cleaning operation mode, the old bactericide solution in the circulation tank is discharged from the discharge system to the outside of the system, the bactericide solution is supplied from the preparation supply unit to the circulation tank, and the circulation tank is filled with a predetermined amount of the bactericide solution to perform chemical cleaning of the circulation tank.
3. A method of operating an air cleaning device, characterized in that,
an intermittent operation in which the normal operation mode and the preparatory operation mode are one cycle is repeatedly performed,
in a normal operation mode, the bactericide solution stored in the circulation tank is supplied to the spraying device through the circulation system, the bactericide solution is sprayed from the spraying device to the air to be sterilized flowing through the purification air passage, the sprayed water of the bactericide solution sprayed from the spraying device is held by the medium, the bactericide solution descending from the purification air passage is received by the circulation tank to circulate the bactericide solution, and the bactericide solution is supplied from the replenishment supply unit to the circulation tank at a replenishment small flow rate to maintain the set concentration of the bactericide solution,
in the preparation operation mode, old bactericide solution in the circulation tank is discharged from the discharge system to the outside of the system, the bactericide solution is supplied from the preparation supply unit at a large preparation flow rate, dilution water is supplied from the dilution water supply system, and new bactericide solution of a set concentration is prepared in batches in the circulation tank,
the medium is disposed in the interior of the wind tunnel forming the gas-liquid contact region of the purge ventilation path so as to be inclined obliquely downward from the air inlet side toward the back side of the housing.
4. The method of operating an air cleaning device according to claim 3,
the washing operation mode is performed after a cycle consisting of the normal operation mode and the preparation operation mode is performed a plurality of times,
in the cleaning operation mode, the old bactericide solution in the circulation tank is discharged from the discharge system to the outside of the system, the bactericide solution is supplied from the preparation supply unit to the circulation tank, and the circulation tank is filled with a predetermined amount of the bactericide solution to clean the circulation tank with a chemical.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015155571A JP6572051B2 (en) | 2015-08-06 | 2015-08-06 | Air cleaning device and operation method |
| JP2015-155571 | 2015-08-06 | ||
| CN201680002271.8A CN107847629A (en) | 2015-08-06 | 2016-06-10 | Aircleaning facility and method of operation |
| PCT/JP2016/067325 WO2017022332A1 (en) | 2015-08-06 | 2016-06-10 | Air purification apparatus and operation method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680002271.8A Division CN107847629A (en) | 2015-08-06 | 2016-06-10 | Aircleaning facility and method of operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115554450A true CN115554450A (en) | 2023-01-03 |
Family
ID=57942815
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680002271.8A Pending CN107847629A (en) | 2015-08-06 | 2016-06-10 | Aircleaning facility and method of operation |
| CN202211189428.6A Pending CN115554450A (en) | 2015-08-06 | 2016-06-10 | Air cleaning device and method of operation |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680002271.8A Pending CN107847629A (en) | 2015-08-06 | 2016-06-10 | Aircleaning facility and method of operation |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6572051B2 (en) |
| CN (2) | CN107847629A (en) |
| WO (1) | WO2017022332A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022153768A (en) * | 2021-03-30 | 2022-10-13 | パナソニックＩｐマネジメント株式会社 | space purifier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050072308A1 (en) * | 2003-10-02 | 2005-04-07 | Kohei Aoyagi | Air cleaner |
| CN101121036A (en) * | 2006-08-07 | 2008-02-13 | 三洋电机株式会社 | Air disinfecting apparatus |
| CN103945874A (en) * | 2011-11-21 | 2014-07-23 | 株式会社久保田 | Air purifying device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7550123B2 (en) * | 2000-03-03 | 2009-06-23 | Steen Research, Llc | Method and apparatus for use of reacted hydrogen peroxide compounds in industrial process waters |
| JP4878820B2 (en) * | 2005-11-18 | 2012-02-15 | 三洋電機株式会社 | Floor-standing air sanitizer |
| JP4812633B2 (en) * | 2007-01-12 | 2011-11-09 | 三洋電機株式会社 | Air sanitizer |
| JP5305770B2 (en) * | 2008-07-25 | 2013-10-02 | 三洋電機株式会社 | Air sanitizer |
| JP5108682B2 (en) * | 2008-08-22 | 2012-12-26 | オルガノ株式会社 | Air purification device |
| JP6202804B2 (en) * | 2012-03-30 | 2017-09-27 | 株式会社クボタ | Air purifier |
| JP5762259B2 (en) * | 2011-11-24 | 2015-08-12 | 株式会社クボタ | Air purifier and air conditioner |
| JP6223112B2 (en) * | 2013-10-16 | 2017-11-01 | 株式会社クボタ | Air purifier and air conditioner |
| CN203970975U (en) * | 2014-04-25 | 2014-12-03 | 无锡市特唯电器科技有限公司 | A kind of air-sterilizing-purifying apparatus |
-
2015
- 2015-08-06 JP JP2015155571A patent/JP6572051B2/en active Active
-
2016
- 2016-06-10 CN CN201680002271.8A patent/CN107847629A/en active Pending
- 2016-06-10 CN CN202211189428.6A patent/CN115554450A/en active Pending
- 2016-06-10 WO PCT/JP2016/067325 patent/WO2017022332A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050072308A1 (en) * | 2003-10-02 | 2005-04-07 | Kohei Aoyagi | Air cleaner |
| CN101121036A (en) * | 2006-08-07 | 2008-02-13 | 三洋电机株式会社 | Air disinfecting apparatus |
| CN103945874A (en) * | 2011-11-21 | 2014-07-23 | 株式会社久保田 | Air purifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6572051B2 (en) | 2019-09-04 |
| WO2017022332A1 (en) | 2017-02-09 |
| CN107847629A (en) | 2018-03-27 |
| JP2017029623A (en) | 2017-02-09 |
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