CN111336613A - Central air conditioning dynamic filtering and static sterilizing air purifying zero-emission system and method - Google Patents
Central air conditioning dynamic filtering and static sterilizing air purifying zero-emission system and method Download PDFInfo
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- CN111336613A CN111336613A CN202010226093.5A CN202010226093A CN111336613A CN 111336613 A CN111336613 A CN 111336613A CN 202010226093 A CN202010226093 A CN 202010226093A CN 111336613 A CN111336613 A CN 111336613A
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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
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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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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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
- F24F8/192—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 by electrical means, e.g. by applying electrostatic fields or high voltages
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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
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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
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
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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
- F24F8/26—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 using ozone
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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
- F24F8/60—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen
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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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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The embodiment of the invention discloses a system and a method for realizing zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner, wherein the system comprises the following components: first disinfection and purification equipment, the second disinfection and purification equipment and zero release air cycle equipment of disinfecting, first disinfection and purification equipment of disinfecting with the second disinfection and purification equipment of disinfecting configuration in parallel, first disinfection and purification equipment of disinfecting with the second disinfection and purification equipment of disinfecting controls the switching of the valve that disposes separately respectively when according to different operation procedures, first disinfection and purification equipment of disinfecting with the second disinfection and purification equipment of disinfecting includes filter unit, absorption separation unit, static electret unit, disinfection unit, gas balance unit and inside air cycle unit respectively. The scheme is suitable for central air-conditioning purification systems and space ventilation places with different treatment scales, and overcomes the defects of the traditional sterilization and disinfection device for the central air-conditioning and the space ventilation places.
Description
Technical Field
The embodiment of the application relates to the technical field of environmental protection, in particular to a system and a method for realizing zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner.
Background
The central air conditioner is composed of one or more cold and heat source systems and a plurality of air conditioning systems. The central air conditioner has corresponding air purification function, when the existing central air conditioner is used for air purification, the fresh air and the return air of the system are mixed and firstly enter an air filter to filter dust particles and particles in the air, the filtered clean air then enters an air conditioning processor to exchange heat with a cooling medium and reduce the temperature to be changed into air with proper temperature in an indoor space, the air is distributed and conveyed to a required space through an air supply pipeline through an air inlet fan, the air is sent into a room through an air supply outlet of the room to keep the room at a certain temperature, then the air is discharged from the room through a return air inlet and collected into a return air pipeline, a part of the air is adjusted through an exhaust valve and discharged to the atmospheric environment through a return air fan, and the other part of the air is mixed with supplemented fresh air through a return air adjusting valve and then passes through the air filter again to filter the dust particles and the particles brought in the fresh air, the filtered clean air then enters the air conditioning processor, which completes the process cycle.
The existing central air-conditioning air purification system is difficult to be provided with an effective air sterilization and disinfection system, and the main reasons are as follows: the effective air sterilization and disinfection system is difficult to realize the dynamic sterilization and disinfection of the large-scale air processing capacity of the central air conditioner by adopting a chemical method or a physical method, wherein the concentration of a disinfection substance or the intensity of disinfection radiation is the first, and the contact (stay) time of gas in the space of the sterilization and disinfection device is the second. For example, one of the currently effective chemical disinfection and sterilization methods is an ozone process, in order to provide enough ozone in a unit time, the power of an ozone generator is large enough, in order to achieve an effective disinfection and sterilization effect and achieve sufficient contact (residence) time, the space volume of the equipment is large enough, which is difficult to achieve in a dynamic process, and meanwhile, ozone is easy to enter an air circulation system and further enter a space where people move in the dynamic disinfection and sterilization and air filtration purification processes, so that adverse effects on human bodies are caused.
Also, in order to provide sufficient ultraviolet intensity (microwave intensity) per unit time by using a physical ultraviolet or microwave sterilization and disinfection process, the number of ultraviolet light tubes and the installed power (power of a microwave generator) need to be large enough, so that an effective sterilization and disinfection effect is achieved, sufficient contact (residence) time is achieved, the space volume of the equipment is large enough, and the dynamic process is difficult to achieve. Therefore, the traditional thinking of the conventional sterilization and disinfection concept is completely overturned, and a dynamic filtration and purification and static sterilization and disinfection air purification zero-emission system of the dynamic central air conditioner is provided.
Disclosure of Invention
The embodiment of the invention provides a system and a method for realizing zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner, which are suitable for central air conditioner purification systems and space ventilation places with different processing scales, overcome the defects of the traditional sterilization and disinfection devices for the central air conditioner and the space ventilation places, can effectively separate virus and bacteria from crowd moving spaces, ensure the safety of the spaces, realize zero emission by circularly processing gas, eliminate the influence on the surrounding environment, thoroughly prevent cross infection and thoroughly kill the bacteria and the viruses. The scheme not only does not excessively increase the equipment investment of the existing system, but also perfectly solves the problem which cannot be solved by the existing system, and the system is stable and safe in operation and low in energy consumption.
In a first aspect, an embodiment of the present invention provides a system for zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner, where the system includes: the first sterilization, disinfection and purification device, the second sterilization, disinfection and purification device and the zero-emission air circulation device are configured in parallel and connected with each other for filtering and sterilizing air, wherein the first sterilization, disinfection and purification device and the second sterilization, disinfection and purification device respectively control the opening and closing of valves configured in accordance with different operation programs, the first sterilization, disinfection and purification device and the second sterilization, disinfection and purification device respectively comprise a filtering unit, an adsorption blocking unit, an electrostatic electret unit, a sterilization and disinfection unit, a gas balance unit and an internal air circulation unit, the filtering unit is used for filtering dust and particles in air, and the adsorption blocking unit is used for adsorbing virus and bacteria, the electrostatic electret unit is used for performing electrostatic treatment on the electret air filtering material forming the sub-high efficiency filter and/or the adsorption and separation unit, adding an electrostatic charge effect, and improving the filtering efficiency by using a method of keeping static by using the electret filtering material, the sterilization and disinfection unit is used for sterilizing and disinfecting the virus and bacteria adsorbed by the adsorption and separation unit, the gas balance unit comprises an oxygen supply device and a carbon dioxide elimination device, the gas balance of the whole system is used for replenishing oxygen consumed by the system, eliminating carbon dioxide generated by the system, is used for realizing the balance of air circulation of a central air-conditioning dynamic filtration and static sterilization and disinfection air purification zero-emission system, therefore, zero emission of the whole system is realized, and the internal air circulation unit is respectively used for realizing internal air circulation of the first sterilization, disinfection and purification equipment and the second sterilization, disinfection and purification equipment during a sterilization and disinfection operation program.
Optionally, still include the control unit, the control unit is used for in the first time interval of predetermineeing, control the first valve of disinfecting disinfection and purification equipment that disinfects is opened, and in the second time interval of predetermineeing, control the first valve of disinfecting disinfection and purification equipment that disinfects is closed, control the second valve of disinfecting disinfection and purification equipment that disinfects is opened, the first disinfection and purification equipment that disinfects is in the first time interval of predetermineeing carries out filtration treatment to the air, predetermineeing the time interval at the second and carries out the disinfection treatment of disinfecting to inside filter element and absorption separation unit, predetermineeing the time interval at the fourth and carries out electrostatic treatment to the electret air filtration material who constitutes inferior high efficiency filter and/or absorption separation unit, adds the electrostatic charge effect, promotes filtration efficiency.
Optionally, the filtering unit includes: the air purifier comprises a coarse filter, a medium-efficiency filter, a sub-high-efficiency filter and/or an adsorption blocking filter, wherein the entering air sequentially passes through the coarse filter, the medium-efficiency filter, the sub-high-efficiency filter and/or the adsorption blocking filter for filtration treatment.
Optionally, the adsorption blocking unit and/or the sub-high efficiency filter are connected to the middle efficiency filter, and are used for adsorbing and blocking viruses and bacteria in the air on the surface of the adsorption blocking material, between the gaps of the adsorption material particles and inside the micropores of the adsorption material.
Optionally, the electrostatic electret unit is disposed in front of the sub-high efficiency filter and/or the adsorption and separation unit, and is configured to perform electrostatic treatment on an electret air filter material constituting the sub-high efficiency filter and/or the adsorption and separation unit, periodically add an electrostatic charge effect to an electret meltblown filter material constituting the sub-high efficiency filter and/or the adsorption and separation unit, and improve the filtration efficiency by using a method of maintaining static electricity by using the electret filter material, so that the filtration efficiency is maintained at 99.9% to 99.99%. I.e., to KN95 standard or above.
Optionally, the sterilization and disinfection unit includes any one of an ultraviolet sterilization device, an ozone sterilization device or a microwave sterilization device, and is used for sterilizing and killing bacteria and viruses adsorbed and blocked on the surface of the adsorption and blocking material, among gaps of particles of the adsorption material and inside micropores of the adsorption material.
Optionally, the sterilization and disinfection unit respectively sterilizes the bacteria and viruses in the coarse filter, the medium filter, the sub-high efficiency filter and/or the adsorption and isolation unit.
Optionally, when the second preset time period reaches a time threshold, the control unit controls the sterilization unit in the first sterilization, disinfection and purification device to stop sterilization.
Optionally, the gas balancing unit includes an oxygen supplementing device and a carbon dioxide eliminating device, and is used for balancing gas of the whole system, supplementing oxygen consumed by the system, and eliminating carbon dioxide generated by the system, so as to realize balance of air circulation of the central air conditioning dynamic filtration and static sterilization and disinfection air purification zero emission system, thereby realizing zero emission of the whole system.
Optionally, the zero-emission air circulation device includes: the air-conditioning system comprises an air balance adjusting valve, a circulation adjusting valve, an emergency exhaust valve, an air-conditioning host, an air supply fan, an air pipeline and a circulation fan, wherein the air pipeline comprises an air supply pipe and an air return pipe, wherein the first sterilization, disinfection and purification equipment and the second sterilization, disinfection and purification equipment send clean air into the air-conditioning main machine, the air adjusted by the air conditioner main machine is sent into the indoor space through the air supply fan and the air supply pipe, the air in the indoor space is sent into the first sterilization and disinfection and purification equipment or the second sterilization and disinfection and purification equipment after being mixed by the circulating fan, the carbon dioxide purification unit and the oxygen supplemented by the oxygen supplementing unit, emergent exhaust valve is used for discharging gas into the atmosphere when emergent, the circulation regulating valve is used for controlling the quantity of circulating gas, gaseous balance regulating valve is used for adjusting the oxygen volume that the replenishment got into.
Optionally, the internal air circulation unit is provided with an internal circulation fan, wherein the internal circulation fan is correspondingly provided with the coarse filter, the medium-efficiency filter, the sub-high-efficiency filter and the adsorption separation unit, so as to realize the internal air circulation of the first sterilization and disinfection purification device and the second sterilization and disinfection purification device when entering the sterilization and disinfection operation program.
In a second aspect, an embodiment of the present invention provides a method for purifying air through dynamic filtration and static sterilization and disinfection of a central air conditioner, which includes the following steps:
in a first preset time period (dynamic filtering and purifying operation program), starting first sterilization and disinfection and purification equipment to filter air, and closing second sterilization and disinfection and purification equipment;
in a second preset time period (static sterilization and disinfection operation program), closing the first sterilization and disinfection purification equipment, performing sterilization and disinfection treatment on the internal filtering unit and the adsorption and separation unit, and opening the second sterilization and disinfection purification equipment to perform filtration treatment on air;
when a second preset time period (a static sterilization and disinfection operation program) reaches a time threshold, stopping the sterilization and disinfection treatment of the first sterilization and disinfection purification equipment on the internal air to enable the first sterilization and disinfection purification equipment to be in a standby state;
in a third preset time period (the first sterilization and disinfection purification equipment performs dynamic filtration and purification, and the second sterilization and disinfection equipment starts a static sterilization and disinfection operation program), closing the second sterilization and disinfection equipment filtration and purification program, and performing sterilization and disinfection treatment on the internal filtration unit and the adsorption and isolation unit;
in a fourth preset time period (which can be coincident with any time period of the first preset time period, the second preset time period and the third preset time period), starting the electrostatic electret device, performing electrostatic treatment on electret air filtering materials which form a sub-high efficiency filter and/or an adsorption and separation unit filtering layer in the first sterilization and disinfection purification equipment or the second sterilization and disinfection purification equipment, and adding an electrostatic charge effect to ensure that the electret filtering materials keep static electricity and improve and ensure the filtering efficiency;
the first sterilization, disinfection and purification equipment and the second sterilization, disinfection and purification equipment respectively comprise a filtering unit, an adsorption and separation unit, an electrostatic electret unit, a sterilization and disinfection unit and an internal air circulation unit, wherein the filtering unit is used for filtering dust and particles in the air, the sub-high efficiency filter and/or the adsorption and separation unit is used for adsorbing virus bacteria, the electrostatic electret unit is used for carrying out electrostatic treatment on electret air filtering materials, adding electrostatic charge effect to keep the electret air filtering materials static, improving and ensuring the filtering efficiency, the sterilization and disinfection unit is used for carrying out sterilization and disinfection treatment on the virus bacteria adsorbed by the adsorption and separation unit, the gas balance unit comprises an oxygen supplementing device and a carbon dioxide eliminating device and is used for gas balance of the whole system, supplementing oxygen consumed by the system and eliminating carbon dioxide generated by the system, the air circulation balance device is used for realizing the balance of the air circulation of the central air-conditioning dynamic filtration and static sterilization and disinfection air purification zero-emission system, thereby realizing the zero emission of the whole system. The internal air circulation unit is respectively used for realizing internal air circulation of the first sterilization, disinfection and purification equipment and the second sterilization, disinfection and purification equipment when the first sterilization, disinfection and purification equipment and the second sterilization, disinfection and purification equipment enter a sterilization and disinfection operation program.
This scheme, central air conditioning dynamic filtration, the loop configuration that static disinfection air purification zero discharge system that disinfects formed contains two sets of parallelly connected, one is used and is equipped with, each other is reserve filter unit, adsorb separation unit and rather than corresponding supporting disinfection unit that disinfects, filter unit contains the coarse effect of filtering dust and micronic dust granule, well effect, inferior high efficiency filter and/or adsorb separation unit can effectively separate the bacterium virus, disinfection unit that disinfects has the high-efficient ability of killing to different virus bacterium, three device is connecting fastener each other, circulation pipeline and its annex, gaseous circulation treatment, realize the zero release, the influence to the surrounding environment has been eliminated. The dynamic filtering and static sterilizing air purifying zero-emission system adopts the optimized purifying technology for air containing dust, PM2.5 micro-dust and virus and bacteria, carries out ultimate purification, meets the quality requirement of gas used by a central air conditioner, realizes the final aim of effectively preventing cross infection and ensuring the safety of people in public places.
Drawings
Fig. 1 is a schematic structural connection diagram of a sterilization, disinfection and purification device in a central air-conditioning dynamic filtration and static sterilization, disinfection and air purification zero-emission system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the sterilization, disinfection and purification apparatus provided in the embodiment of the present invention;
FIG. 3 is a schematic view of another internal structure of the sterilization, disinfection and purification apparatus provided in the embodiment of the present invention;
fig. 4 is a schematic view of an internal structure of an adsorption barrier unit according to an embodiment of the present invention;
FIG. 5 is a block diagram of the overall architecture of a system for zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner according to an embodiment of the present invention;
fig. 6 is a flow chart of a method for realizing zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.
The application scenario of the scheme is exemplarily described as follows:
the air conditioner is suitable for various central air conditioning places with large scale, such as hotels, eating places, exhibition halls, meeting halls, museums, airport station waiting places, office buildings, medical units, especially infectious disease hospitals and places with high requirements on preventing cross infection, and production and living places with large scale population concentration. Such as clean plants, industrial production plants, indoor trading markets, etc. In the operation process, large-scale air needs to be treated, the air in different environments contains a large amount of dust, dust particles and virus and bacteria, and in order to prevent cross infection of people in public gathering places caused by established bacteria and viruses possibly carried by specific people and specific environments, a central air conditioning system in the places needs to be effectively sterilized and disinfected.
The present solution will now be described in detail with reference to the system.
Fig. 1 is a schematic structural connection diagram of a sterilization, disinfection and purification device in a central air-conditioning dynamic filtration and static sterilization, disinfection and air purification zero-emission system according to an embodiment of the present invention. As shown in fig. 1, in the central air conditioning dynamic filtration and static sterilization and disinfection air purification zero emission system, the central air conditioning dynamic filtration and static sterilization and disinfection air purification zero emission system includes two sterilization and disinfection and purification devices, namely a first sterilization and disinfection and purification device 100 and a second sterilization and disinfection and purification device 200, which are arranged in parallel, and it should be noted that the sterilization and disinfection and purification devices arranged in parallel are not limited to two, and a plurality of sterilization and disinfection and purification devices can be arranged to be arranged in parallel according to actual conditions.
In one embodiment, the first disinfection and purification device 100 and the second disinfection and purification device 200 are connected in parallel and controlled by their respective valves, the first disinfection and purification device 100 is provided with a valve 101 and a valve 102, the second disinfection and purification device 200 is provided with a valve 201 and a valve 202, when the valve 101 and the valve 102 are opened and the valve 201 and the valve 202 are closed, air flows through the first disinfection and purification device 100, and when the valve 101 and the valve 102 are closed and the valve 201 and the valve 202 are closed, air flows through the second disinfection and purification device 200.
Wherein, the first sterilization, disinfection and purification equipment 100 comprises a filtering unit 103, an adsorption and separation unit 104, a sterilization and disinfection unit 105 and an internal air circulation unit 106, and the internal air circulation unit 106 is used for realizing the internal gas circulation of the sterilization, disinfection and purification equipment, such as an internal circulation fan and a connected pipeline. The second sterilizing and disinfecting and purifying device 200 has the same internal structure as the sterilizing and disinfecting and purifying device, and is not labeled in fig. 1.
Fig. 2 is a schematic diagram of an internal structure of a sterilization and disinfection apparatus according to an embodiment of the present invention, the first sterilization and disinfection apparatus 100 can perform a filtering process and a sterilization and disinfection process on air, specifically, the filtering process is performed by the filtering unit 103, where the filtering unit 103 includes a coarse filter 1031, a middle filter 1032 and a sub-high filter 1033, the adsorption and separation unit 104 is configured to adsorb viral bacteria, and the sterilization and disinfection unit 105 is configured to perform a sterilization and disinfection process on viral bacteria adsorbed by the adsorption and separation unit 104.
In one embodiment, the adsorption barrier unit and/or the sub-high efficiency filter is used for adsorbing and blocking virus and bacteria in the air on the surface of the adsorption barrier material, between the gaps of the particles of the adsorption material and inside the micropores of the adsorption material. The sterilization and disinfection unit comprises any one of an ultraviolet sterilization device, an ozone sterilization device or a microwave sterilization device and is used for sterilizing and killing bacteria and viruses which are adsorbed and blocked on the surface of the adsorption and blocking material, among the gaps of the adsorption particles and in the micropores of the adsorption material. The ultraviolet sterilization device, the ozone sterilization device or the microwave sterilization device are only exemplary, and other sterilization and disinfection devices can be adopted.
In one embodiment, as shown in fig. 2, in the first sterilization, disinfection and purification apparatus, the sterilization and disinfection units 105 are respectively and individually configured in the coarse filter 1031, the middle filter 1032, the sub-high efficiency filter 1033 and the adsorption blocking unit 104, and respectively sterilize the bacterial viruses in each fine component, and the separately configured separate sterilization and disinfection units may be combined into a total sterilization and disinfection unit to sterilize the bacterial viruses.
Specifically, the sterilization and disinfection process can select sterilization and disinfection equipment with different process types, and the sterilization and disinfection process is designed according to the space size of the whole dynamic filtration and static sterilization and disinfection air purification zero-emission system, the requirements of the sterilization and disinfection time and technical parameters (such as ozone disinfectant concentration, ultraviolet and micro light irradiation intensity, microwave power and the temperature of the whole equipment volume space) required by different sterilization and disinfection process types, so that the sterilization and disinfection effect is achieved, the operation power is reduced to the maximum extent, and the operation cost is reduced. The invention can adopt ozone sterilization and disinfection process equipment, ultraviolet sterilization and disinfection process, microwave sterilization and disinfection process and the like according to different places.
In an embodiment, as shown in fig. 3, fig. 3 is another schematic internal structure diagram of the disinfecting and purifying apparatus provided in the embodiment of the present invention, and the disinfecting and purifying apparatus further includes an electrostatic electret unit 107, where the electrostatic electret unit 107 is disposed between the sub-high efficiency filter 1033 and the adsorption and separation unit 104, and is used for performing electrostatic treatment on the electret air filter material constituting the sub-high efficiency filter and/or the adsorption and separation unit, and periodically adding an electrostatic charge effect to the electret meltblown filter material constituting the sub-high efficiency filter and/or the adsorption and separation unit, so as to improve the filtration efficiency by using the method of the electret filter material for maintaining static electricity, so that the filtration efficiency is maintained at 99.9% to 99.99%. I.e., to KN95 standard or above.
Fig. 4 is a schematic diagram of an internal structure of an adsorption blocking unit according to an embodiment of the present invention, as shown in fig. 4, in this embodiment, a sterilization unit 105 is composed of an ozone sterilization device, the ozone sterilization device is provided with a plurality of ozone diffusion distribution pipes 1051, an internal air circulation unit 106 includes an internal circulation fan 1061, an air suction pipe 1062, an air suction opening 1063, an air return pipe 1065, and an air return opening 1064, so as to realize internal air circulation of the ozone sterilization device, and the internal circulation unit is also arranged in a filtering unit. Correspondingly, if a microwave sterilization device is adopted, a microwave radiation distribution pipe is arranged, if an ultraviolet sterilization device is adopted, an ultraviolet pipe is arranged, and the difference lies in that the ultraviolet pipe can be uniformly arranged in the inner space of the adsorption and separation unit.
Fig. 5 is a block diagram of an overall architecture of a system for zero emission of dynamic filtering and static sterilization and disinfection of air purification of a central air conditioner according to an embodiment of the present invention, as shown in fig. 5, the system is composed of a first sterilization and disinfection purification device 100 and a second sterilization and disinfection purification device 200, which are arranged in parallel, and a zero emission air circulation device, wherein the zero emission air circulation device includes: the air balance adjusting valve 301, the circulation adjusting valve 302, the emergency exhaust valve 303, the oxygen supplement adjusting valve 313, the air-conditioning main unit 304, the air supply fan 305, the air duct and the circulation fan 306, the air duct includes an air supply pipe 307 and an air return pipe 308, wherein the first sterilization and disinfection purification device 100 and the second sterilization and disinfection purification device 200 supply clean air into the air-conditioning main unit 304, the air conditioned by the air-conditioning main unit 304 is supplied into an indoor space (two indoor spaces, namely an indoor space 309 and an indoor space 310 in the drawing, which are only for illustration purpose, and may further include a plurality of indoor spaces) through the air supply fan 305 via the air supply pipe 307, the air in the indoor space is supplied into the carbon dioxide purification device 311 through the air return pipe 308 by the circulation fan 306, and is mixed with oxygen supplemented by the oxygen supplement device 312 and then supplied into the first sterilization and disinfection purification device or the second sterilization and disinfection purification device, the emergency exhaust valve 303 is used to exhaust the indoor space gas to the atmosphere in special situations, the circulation regulating valve 302 is used to control the zero-emission circulation gas amount, the gas balance regulating valve 301 is used to regulate the amount of the supplementary inlet air, and the oxygen supplement regulating valve 313 is used to control the amount of the supplementary oxygen.
The central air conditioning dynamic filtration that provides in this scheme, static disinfection and air purification zero discharge system that disinfects can realize dynamic filtration and static disinfection and treatment, and first disinfection and purification equipment and the second disinfection and purification equipment that disinfects respectively controls the switching of the valve of configuring separately when according to different operation procedures specific, and the example is as follows:
when air treatment is needed, if the valve of the first sterilization, disinfection and purification device is controlled to be opened in a first preset time period (for example, from 7 am to 19 pm), the control mode can be automatically controlled through the arranged control unit and can also be manually controlled, at the moment, the first sterilization, disinfection and purification device filters air through the internally integrated filter unit, and the second sterilization and disinfection device does not work. In a second preset time period (for example, from 19 pm to 21 pm), controlling the valve of the first sterilization and disinfection purification device to close, starting the sterilization and disinfection program of the first sterilization and disinfection device, and simultaneously controlling the valve of the second sterilization and disinfection purification device to open, at this time, the second sterilization and disinfection purification device is used to implement the filtration treatment of the air, when the second preset time period reaches a time threshold (for example, 7 am of the next day), the first sterilization and disinfection purification device in a standby state starts the filtration adsorption and purification operation program again, at this time, because the sterilization and disinfection treatment is completed, the obtained air is clean air after the filtration treatment and the sterilization and disinfection treatment, at this time, the second sterilization and disinfection device is controlled to perform the sterilization and disinfection treatment, the valve is closed, the air filtration treatment is not performed, and at a third preset time period (for example, 7 am to 9 pm), and starting a sterilization and disinfection running program of the second sterilization, disinfection and purification equipment, thereby controlling the running in a reciprocating way. It should be noted that the preset time period is exemplary and can be adjusted according to actual situations. In the scheme, the equipment after sterilization and disinfection is put into operation again, two sets of sterilization and disinfection equipment in one system are configured, alternately and intermittently operate, one for each other and one for each other, and are not the scheme of simultaneous treatment of sterilization, disinfection and filtration, and the sterilization and disinfection are not started at all time, so that the problem of high energy consumption caused by sterilization and disinfection treatment is solved, and the long-term safe and stable operation of the whole central empty-sleeve system under the conditions of ensuring safety and effectively preventing cross infection is ensured.
The central air conditioning dynamic filtration that this scheme provided, the cyclic structure that static disinfection air purification zero discharge system that disinfects formed contains two sets of parallelly connected, one is used for one and is equipped with, each other is reserve filter unit, adsorb separation unit and rather than corresponding supporting disinfection unit that disinfects, filter unit contains the coarse effect of filtering dust and micronic dust granule, well effect, inferior high efficiency filter, it can effectively separate the bacterium virus to adsorb separation unit, disinfection unit that disinfects has the high-efficient ability of killing to different virus bacterium, three device is mutual connects fastener, circulation pipeline and annex, the business turn over pipeline of connecting between the system exit, the air intake, air exit and emergent safe discharge valve. The dynamic filtering and static sterilizing air purifying zero-emission system adopts the optimized purifying technology for air containing dust, PM2.5 micro-dust and virus and bacteria, carries out ultimate purification, meets the quality requirement of gas used by a central air conditioner, carries out circular treatment on the gas, realizes zero emission, eliminates the influence on the surrounding environment, effectively prevents cross infection and ensures the final goal of safety of people in public places.
The scheme creatively provides a brand-new treatment framework for ensuring sterilization and disinfection of the central air conditioner, and the system implements limit purification on an air system which is required by the central air conditioner and provides absolute safety for people moving about the central air conditioner through dynamic filtration and static sterilization and disinfection air purification zero-emission systems of the central air conditioner, so that the air is safely and effectively purified, and the purified gas returns to the system again, so that the gas is recycled, the influence on the surrounding environment is thoroughly eliminated, the safety worry of people is eliminated, and the harmony of the society is realized. Compared with the prior art: effectively solves the problems of filtration, purification, sterilization and disinfection of the system; the cross infection is avoided, and the panic psychology of the masses is eliminated; the modular structure improves the production and installation efficiency of the equipment; the wasted energy is recycled to the maximum extent, and the energy consumption of the system is reduced; the system layout is optimized, the operation cost is reduced, and the ventilation environment and the ecological environment are improved. The environmental benefit, the social benefit and the economic benefit complement each other!
Fig. 6 is a flow chart of a method for zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner, as shown in fig. 6, including the following steps:
step S101, in a first preset time interval, starting first sterilization, disinfection and purification equipment to filter air, and closing second sterilization, disinfection and purification equipment.
And S102, in a second preset time interval, closing the first sterilization and disinfection purification equipment, sterilizing and disinfecting the internal filtering unit and the adsorption and separation unit, and opening the second sterilization and disinfection purification equipment to filter air.
And step S103, stopping the sterilization and disinfection treatment of the first sterilization and disinfection purification equipment on the internal air when the second preset time period reaches a time threshold.
And S104, in a third preset time interval, starting the first sterilization and disinfection purification equipment to filter air, closing the second sterilization and disinfection purification equipment, and performing sterilization and disinfection treatment on the internal filtering unit and the adsorption and separation unit.
And S105, in a fourth preset time period, starting an electrostatic electret device, carrying out electrostatic treatment on an electret air filtering material forming a sub-high efficiency filter and/or an adsorption and separation unit filtering layer in the first sterilization and disinfection and purification equipment or the second sterilization and disinfection and purification equipment, and adding an electrostatic charge effect.
The fourth preset time period may coincide with any one of the first preset time period, the second preset time period, and the third preset time period.
In the scheme, firstly, air to be purified enters a system filtering unit, dust particles, particles and partial bacteria in the air are filtered, the filtered clean air and the adsorption and separation unit containing a small amount of particles and virus bacteria enter the adsorption and separation unit, the adsorption and separation unit made of materials with good adsorption and separation capacity can filter, adsorb and separate the virus bacteria in the air to obtain effective separation, so as to prevent cross infection of a crowd activity space, when the air continuously works to a set time interval, an inlet and outlet valve is closed, another set of standby device is opened, then a sterilization and disinfection system is started, sterilization and disinfection in different time intervals are set according to the sterilization and disinfection requirements on the virus bacteria, the sterilization and disinfection are finished, the air enters a standby state, two sets of devices are used, standby each other, dynamic filtration and static sterilization and disinfection are carried out, so that the sterilization and disinfection effects are ensured, and the cross infection is, and the system configuration is optimized, the installed capacity is reduced, and the operating cost is reduced.
The air treated by the system enters an air processor, is subjected to heat exchange and cooling with a cooling medium to be changed into air with a proper temperature in an indoor space, is distributed and conveyed to a required space through an air supply pipeline by an air supply fan, is conveyed into a room through an air supply outlet of the room to keep the room at a certain temperature, is discharged from the room through an air return inlet, is collected into an air return pipeline, is conveyed into a carbon dioxide purification device by a circulating fan, is mixed with oxygen supplemented by an oxygen supplementing device, passes through an air filter of a dynamic filtering and static sterilizing device again to filter dust particles and particles brought by fresh air in the air, and enters an adsorption blocking unit again to remove virus and bacteria and then enters an air conditioning processor to realize the circulation of the process.
The dynamic filtering and static sterilizing and disinfecting air purifying zero-emission system of the central air conditioner adopts the advanced sterilizing and disinfecting idea and the ingenious configuration, thereby realizing the effective sterilizing and disinfecting system of a large-scale air purifying system, no matter adopting the chemical process of ozone sterilizing and disinfecting, or the physical sterilizing and disinfecting process of ultraviolet and microwave, realizing the perfect unification of the sterilizing and disinfecting intensity and the retention time, realizing the small scale of the sterilizing and disinfecting device, the miniaturization of the equipment volume, the low installed power, the optimal installed power, the most reasonable equipment, the effective sterilizing and disinfecting effect is realized, thoroughly subverting the traditional thinking of the existing sterilizing and disinfecting idea, being suitable for the dynamic filtering and static sterilizing and disinfecting air purifying zero-emission system in the field of the central air conditioner, and realizing the perfect combination of the traditional air purifying and sterilizing.
It should be noted that, in the embodiment of the system for zero emission of air purification by dynamic filtration and static sterilization and disinfection of a central air conditioner, the units and modules included in the system are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the embodiment of the invention.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, adaptations, and substitutions are possible, without departing from the scope of the embodiments of the present invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (10)
1. Central air conditioning dynamic filtration, static disinfection air purification zero discharge system that disinfects, its characterized in that, the system includes:
the first sterilization, disinfection and purification device, the second sterilization, disinfection and purification device and the zero-emission air circulation device are configured in parallel and connected with each other for filtering and sterilizing air, wherein the first sterilization, disinfection and purification device and the second sterilization, disinfection and purification device respectively control the opening and closing of valves configured in accordance with different operation programs, the first sterilization, disinfection and purification device and the second sterilization, disinfection and purification device respectively comprise a filtering unit, an adsorption blocking unit, an electrostatic electret unit, a sterilization and disinfection unit, a gas balance unit and an internal air circulation unit, the filtering unit is used for filtering dust and particles in air, and the adsorption blocking unit is used for adsorbing virus and bacteria, the sterilization and disinfection unit is used for sterilizing and disinfecting the virus and bacteria adsorbed by the adsorption and separation unit, the gas balance unit comprises an oxygen supplementing device and a carbon dioxide eliminating device, the oxygen supplementing device is used for supplementing the oxygen consumed by the system and eliminating the carbon dioxide generated by the system, and the balance of the air circulation of the central air-conditioning dynamic filtration and static sterilization and disinfection air purification zero-emission system is realized, so that the zero emission of the whole system is realized. The internal air circulation unit is respectively used for realizing internal air circulation of the first sterilization, disinfection and purification equipment and the second sterilization, disinfection and purification equipment during a sterilization, disinfection and operation program.
2. The system of claim 1, further comprising a control unit, wherein the control unit is configured to control the valve of the first disinfection and purification device to open during a first preset time period, control the valve of the first disinfection and purification device to close during a second preset time period, and control the valve of the second disinfection and purification device to open, wherein the first disinfection and purification device filters air during the first preset time period, and performs disinfection and purification on the internal filtering unit and the adsorption blocking unit during the second preset time period, and when the second preset time period reaches a time threshold, the control unit controls the disinfection and purification unit of the first disinfection and purification device to stop disinfection and purification.
3. The central air-conditioning dynamic filtration, static sterilization and disinfection air purification zero-emission system of claim 2, wherein the filtration unit comprises, connected in sequence: coarse filter, medium efficiency filter and inferior high efficiency filter, the air that gets into pass through coarse filter the medium efficiency filter the inferior high efficiency filter and/or the absorption separation unit carries out filtration treatment, gas balancing unit includes oxygen supplementation unit and carbon dioxide purification unit, the control unit still is used for controlling oxygen supplementation unit carries out oxygen supplementation and carbon dioxide purification unit clears away the carbon dioxide.
4. The system of claim 3, wherein the adsorption and blocking unit and/or the sub-high efficiency filter are connected to the middle efficiency filter, and the filtration layer of the adsorption and blocking unit and/or the sub-high efficiency filter are made of electret spray-melted nonwoven fabric, and are used for adsorbing and blocking viruses and bacteria in the air on the surface of the adsorption and blocking material, among the gaps of the adsorption material particles and inside the micropores of the adsorption material.
5. The system of claim 3, wherein the electrostatic electret unit is disposed in front of the sub-high efficiency filter and/or the adsorption and separation unit, and is configured to perform electrostatic treatment on the electret air filtering material constituting the sub-high efficiency filter and/or the adsorption and separation unit, and periodically add electrostatic charge effect to the electret meltblown filtering material constituting the sub-high efficiency filter and/or the adsorption and separation unit.
6. The system of claim 4, wherein the sterilization and disinfection unit comprises any one of an ultraviolet sterilization device, an ozone sterilization device or a microwave sterilization device, and is used for sterilizing and disinfecting bacteria and viruses adsorbed and blocked on the surfaces of the adsorption and blocking materials, among the gaps of the adsorption material particles and inside the micropores of the adsorption material.
7. The system of claim 4, wherein the sterilization and disinfection unit respectively kills bacteria and viruses in the coarse filter, the medium filter, the sub-high efficiency filter and/or the adsorption and separation unit.
8. The central air-conditioning dynamic filtration, static sterilization, disinfection, air purification zero-emission system according to any of claims 1-7, characterized in that the zero-emission air circulation equipment comprises: the air pipeline comprises an air supply pipe and an air return pipe, wherein the first sterilization and disinfection and purification device and the second sterilization and disinfection and purification device supply clean air into the air-conditioning host, the air adjusted by the air-conditioning host is sent into an indoor space through the air supply pipe by the air supply fan, the air in the indoor space is sent into the first sterilization and disinfection and purification device or the second sterilization and disinfection and purification device after being mixed by the carbon dioxide purification unit and the oxygen supplemented by the oxygen supplementation unit by the circulating fan, the emergency exhaust valve is used for exhausting the air into the atmosphere in emergency, the circulating regulating valve is used for controlling the amount of circulating gas, and the air balance regulating valve is used for regulating the amount of air which is supplemented, the oxygen supplement regulating valve is used for controlling the amount of supplemented oxygen.
9. The central air conditioning dynamic filtration, static sterilization and disinfection air purification zero emission system according to any one of claims 3-7, wherein the internal air circulation unit is configured with an internal circulation fan, wherein the internal circulation fan is configured with the coarse filter, the middle filter, the sub-high efficiency filter and the adsorption blocking unit, respectively, for realizing internal air circulation of the first sterilization and disinfection purification equipment and the second sterilization and disinfection purification equipment.
10. The air purifying method of dynamic filtering and static sterilizing and disinfecting of the central air conditioner is characterized by comprising the following steps:
in a first preset time period, starting first sterilization, disinfection and purification equipment to filter air, and closing second sterilization, disinfection and purification equipment;
in a second preset time period, closing the first sterilization, disinfection and purification equipment, performing sterilization and disinfection treatment on the internal filtering unit and the adsorption and separation unit, and opening the second sterilization, disinfection and purification equipment to perform filtration treatment on air;
when the second preset time period reaches a time threshold, stopping the sterilization and disinfection treatment of the first sterilization and disinfection purification equipment on the internal air to enable the first sterilization and disinfection purification equipment to be in a standby state;
in a third preset time period, the first sterilization, disinfection and purification equipment is started to filter air, the second sterilization, disinfection and purification equipment is closed, and the internal filtering unit and the adsorption and separation unit are sterilized and disinfected;
in a fourth preset time period, starting an electrostatic electret device, performing electrostatic treatment on an electret air filtering material which forms a sub-high efficiency filter and a filtering layer of an adsorption and separation unit in the first sterilization, disinfection and purification equipment or the second sterilization, disinfection and purification equipment, adding an electrostatic charge effect to enable the electret filtering material to keep static, wherein the fourth preset time period is coincident with any one of the first preset time period, the second preset time period and the third preset time period;
first disinfection and isolation clarification plant with the second disinfection and isolation clarification plant includes filter unit, absorption separation unit, static electret unit, disinfection unit and the inside air cycle unit of disinfecting respectively, the filter unit is arranged in filtering dust and particle in the air, the absorption separation unit is used for adsorbing the virus bacterium, static electret unit is used for carrying out electrostatic treatment to electret air filtering material, adds the static charge effect, the disinfection unit that disinfects is used for right the virus bacterium that absorption separation unit adsorbs disinfects the disinfection processing, the inside air cycle unit is used for realizing respectively first disinfection and isolation clarification plant with the second disinfection and isolation clarification plant that disinfects gets into the inside gas circulation when disinfecting the operation procedure that disinfects.
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