CN112503749A

CN112503749A - Antibacterial and antiviral honeycomb rotating wheel with copper ion dissolving agent surface coating for air conditioner

Info

Publication number: CN112503749A
Application number: CN202011235818.3A
Authority: CN
Inventors: 金伟力
Original assignee: Seibu Giken Environmental Protection Energy Saving Equipment Changshu Co ltd
Current assignee: Seibu Giken Environmental Protection Energy Saving Equipment Changshu Co ltd
Priority date: 2020-09-27
Filing date: 2020-11-06
Publication date: 2021-03-16
Also published as: CN213687219U

Abstract

The copper ion stripping agent surface coating antibacterial antiviral honeycomb runner for air conditioners is characterized in that when the maximum designed air volume of the honeycomb runner is reached, the Re number in a honeycomb flow path does not exceed 2300, the air belongs to a laminar flow state, the size of the honeycomb is small enough, so that the length of a walking assisting section required by the air flowing into the honeycomb flow path to be completely laminar flow is smaller than 1/2 of the thickness of the runner, and the honeycomb flow path of the runner is formed by a film sheet material coated with a coating containing a copper ion stripping type antibacterial agent. When the indoor return air passes through the honeycomb rotating wheel, viruses or bacteria contained in most of air are effectively discharged, even if trace viruses or bacteria are attached to the honeycomb, the viruses or bacteria are not scattered and transferred again, the sterilization effect can be realized through copper ions in a short time, and the viruses or bacteria attached to the surface of a honeycomb flow path are inactivated and are not activated any more. In the aspect of production, the antibacterial agent is economical, practical and safe, and compared with the traditional full heat exchanger rotating wheel, the antibacterial agent does not need special devices or materials, and is easier to produce conveniently.

Description

Antibacterial and antiviral honeycomb rotating wheel with copper ion dissolving agent surface coating for air conditioner

Technical Field

The invention belongs to equipment for disinfecting, sterilizing or deodorizing A61L9/00 air or purifying waste gas B01D53/74 and a chemical or biological purification technology of waste gas B01D53/00 or aerosol, and relates to a rotary total heat exchanger or a rotary wheel of a dehumidifying air conditioner used in a general air conditioner, in particular to a copper ion solvent surface coating antibacterial and antiviral honeycomb rotary wheel for an air conditioner.

Background

The total heat exchanger is an excellent energy saving device that can recover exhaust heat generated by air conditioning ventilation.

The use space of the air conditioner is possibly polluted by unexpected virus or bacteria, so that the risk of secondary pollution is increased, and the pollution and the diffusion risk of the virus, the bacteria and the like can be reduced by pushing out the total heat exchange rotating wheel or the dehumidifying rotating wheel.

The total heat exchanger includes rotary and stationary types, wherein the present invention focuses on rotary total heat exchangers, and particularly on honeycomb wheel arrangements thereof. The honeycomb rotor of the rotary total heat exchanger is generally coated with powders of silica gel, zeolite, ion exchange resin, etc. on the surface of aluminum honeycomb so that latent heat or moisture can be heat-stored and exchanged together with sensible heat.

The total heat exchanger uses a honeycomb rotor coated with the latent heat exchanger, as shown in fig. 1, and divides the honeycomb rotor into at least an outside air supply region and an air return region, and rotates the rotor at a speed of a certain RPM. The return air zone passes through the used air in the room and when the used air is exhausted, the full heat is accumulated in the honeycomb rotating wheel. The outside air intake area is an area where the outside air absorbs the total heat accumulated in the wheel and is sent out as blowing air into the room.

Taking winter as an example, after used air in a room is introduced into an air return area, sensible heat and latent heat are accumulated in a honeycomb, and the used air is cooled and dehumidified and then discharged through an exhaust area. On the other hand, when outside air is introduced from the outside air area, the outside air is heated and humidified by sensible heat and latent heat accumulated in the rotor and then enters from the air supply area, so that energy consumed in heating and humidifying the air conditioner can be reduced. Although the cooling and heating in summer is opposite to that in winter, the same principle is applied, and outside air can be cooled, dehumidified, and then blown in.

The dehumidifying air conditioner is identical in structure to the rotary total heat exchanger, but the number of revolutions used is only a few tenths of the number of revolutions of the total heat exchanger. For example, in a 200mm wide rotor, the number of revolutions of the total heat exchanger is about 10rpm to several tens of rpm. And the dehumidifying wheel is between about 10rph and dozens of rph.

The principle of the total heat exchanger is to recover the total heat of the used air to the outside air side of the intake air, whereas the target of the processing by the dehumidifying air conditioner may be the used air and may be the outside air. The dehumidifying air conditioner heats regeneration-side air or cools treatment-side air in order to dehumidify the treatment air. At the same time, the heating of the regeneration-side air and the cooling of the process-side air may be performed simultaneously.

In recent years, there has been also developed a dehumidification air conditioning system called a passive air conditioning system, which dehumidifies process-side air by allowing the air used indoors to enter a regeneration side without being heated and allowing the process-side air to enter a process side after being cooled and dehumidified. That is, the humidity on the side with the higher relative humidity is adsorbed by the difference between the relative humidity of the process air and the relative humidity of the regeneration air to lower the absolute humidity, and the adsorbed humidity is desorbed on the side with the lower relative humidity to increase the absolute humidity and then the exhaust or air supply is performed.

In recent years, a dehumidifying air conditioner is used not only for dehumidification but also for winter humidification. Even though the dehumidification air conditioner is available, there is a method of alternative operation in which the total heat exchange is performed by increasing the number of revolutions of the rotor to the number of revolutions of the total heat exchanger according to circumstances. On the contrary, although the total heat exchanger is used, the number of revolutions of the rotor may be reduced to the number of revolutions of the dehumidifying air conditioner to perform the dehumidifying operation.

In recent years, influenza virus, SARS virus and novel coronavirus have spread, and thus normal operation of social activities is significantly inhibited. Wherein the size of the bacteria is about 0.5-1 μm and 0.5-5 μm, but the size of the virus is smaller, the diameter is 150-180 nm, and no cell exists, and the bacteria can cause harm to the host by parasitizing on the cell. Since the virus is very small, the virus is further miniaturized to form an aerosol with scattering of the mist and evaporation of moisture of the mist, and the aerosol floats in the air for a long time, so that the virus is inhaled to infect clothes, food and articles, and the risk of secondary infection is increased.

Among countermeasures for reducing secondary infection, ventilation is one of the important countermeasures, and energy saving is also very important in ordinary life, and therefore, as a countermeasure for preventing unpredictable secondary infection, there is a need to improve the safety of the total heat exchanger.

In order to prevent the spread of contamination in contaminated areas such as housing areas for infected persons such as viruses and bacteria, hospital air conditioners employ a negative pressure air conditioning system, and the used air must be sterilized and sterilized by a high performance filter or a sterilization apparatus and then exhausted. While positive pressure is typically used outside of the contaminated area, as is common with air conditioning, ventilation to reduce the risk of infection is equally important and has become a common concern.

The principle of the rotary total heat exchanger is that air used in a room and outside air alternately pass through the rotary wheel while rotating, thereby exchanging total heat of the air. However, as the wheel rotates, a problem arises in that the air contained in the cell voids is transferred to other areas. In this case, in order to prevent the used air from being transferred to the blowing side, a technique of providing a cooling sector has been disclosed. Meanwhile, it is also known to those skilled in the art that the use of an adsorbent having fine pores such as silica gel adsorbs a part of odor while adsorbing latent heat or water vapor, and the odor is transferred from the used air to the air supply. According to this principle, there is a fear that bacteria or viruses in the air used in the rotary total heat exchanger are also transferred to the air supply, and secondary pollution may be caused. However, even in this case, ventilation is important to reduce the virus concentration, and the pressure of chills and hots increases the risk of secondary infection, so that authorities and knowledge such as the relevant air conditioning professional society and the medical epidemic prevention experts generally recommend the use of air conditioners for general indoor ventilation guidance. For example, as shown in the academic report literature, the inventors assumed that bacteria and mold existing in the outside air are indoor bacteria, and conducted a transfer test of bacteria and mold by regarding the air sterilized by a high-performance HEPA filter as the outside air.

It is described in the publication that most of bacteria and mold are not transferred through the rotating wheel as shown in reference to attached tables 1 and 2. The reason for this analysis is that the operating conditions of the total heat exchanger used in the experiment were in the laminar flow region, so that, as shown in fig. 2 and 3, most of the bacteria or mold mixed in the used air did not contact the honeycomb walls or even adhered to the honeycomb walls when the exhaust was performed through the runner. Meanwhile, even if the cooling sector is not provided, it is considered that bacteria and mold are not transferred, however, further studies have found that this is probably due to an error caused by the accuracy of the experiment or the small number of bacteria. In addition, there is a case where a bacteriological specialist thinks that the transfer does not necessarily occur because the number of the bacteria to be measured is small.

Some inventors have focused on a technique of adding a mold inhibitor or an antibacterial agent to a honeycomb film of a total heat exchange rotor in order to prevent mold or bacteria attached to the honeycomb wall from having an activating function. A small amount of patent literature is directed to this technology.

For example, patent document 1 discloses a method of adhering particles of a moisture absorbent to both surfaces of a honeycomb-wall film substrate with an adhesive, wherein the exposed surfaces of the particles have micropores and are covered with a coating film containing a mildewproofing agent and/or an antibacterial agent.

Patent document 2 discloses that at least a part of the inorganic adsorbent particles containing a bactericide is adhered to a film base material with an adhesive, and the film base material is formed into a honeycomb shape.

The

above patent documents

1 and 2 disclose the use of a non-leaching antibacterial agent, specifically a non-leaching antibacterial agent in which an inorganic porous material contains an organic antifungal agent, an organic antibacterial agent, or a silver antibacterial agent.

The organic antibacterial agents described in

patent documents

1 and 2 may be deteriorated, and therefore, are not suitable for long-term use in terms of the service life of the total heat exchanger of 10 years or more. Further, although silver-based antibacterial agents are highly safe, if used in air conditioners, they are oxidized after long-term use, and thus have disadvantages of deteriorated antibacterial properties and high cost. In addition, considering that chlorine-based bactericides are frequently used for sterilization of bacteria or viruses, silver-based antibacterial agents form silver halides with chlorine, resulting in instantaneous disappearance of antibacterial properties. Many non-leaching antibacterial agents have been marketed, in which the inorganic porous material contains silica gel, zeolite, or the like, and the safety and durability of the metal antibacterial material can be improved, but they are expensive and not suitable for general use.

Although many antibacterial agents are available for use in products such as household products which are directly touched or worn by people, the technology and products for long-term and unlimited reduction of transfer of bacteria and viruses, which are related to the object of the present invention, are still rare, and the effect of the antibacterial agent coating is considered to be undesirable and difficult to demonstrate.

In the aspect of air conditioning of hospitals, under the condition that the problems of bacteria and viruses resistance and resistance of the honeycomb structure coating in the prior art are not actually solved, the patients with confirmed bacterial or virus infection are usually isolated in a pollution area designed into a negative pressure air conditioner, but the general patients are arranged to enter a general ward, and after the patients with undetermined infection enter the hospital from a waiting room, the risk of infection is enlarged without attention. In addition, there is a potential unpredictable risk of secondary infections of contacters that are inadvertently caused by infection by a doctor or nurse.

Disclosure of Invention

The invention aims to provide an antibacterial and antiviral honeycomb rotating wheel with a copper ion stripping agent surface coating for an air conditioner, which can ensure the basic performance of a total heat exchange rotating wheel or/and a dehumidifying air conditioner rotating wheel of the air conditioner and simultaneously reduce the transfer of bacteria and viruses for a long time and infinitely, and actually solve the problem of antibacterial and antiviral of a honeycomb structure coating in the prior art so as to deal with the unpredictable risk.

The aim of the invention is achieved by the following technical measures: even when the maximum design air volume of the honeycomb rotor is reached, the Re number in the honeycomb flow path does not exceed 2300, and the air is in a laminar state, since the size of the honeycomb is sufficiently small, the length of the assist section required for the air flowing into the honeycomb flow path to become completely laminar is less than 1/2 of the thickness of the rotor, and the honeycomb flow path of the rotor is formed of a sheet material coated with a coating layer containing a copper ion elution-type antibacterial agent.

In particular, the copper ion elution-type antibacterial agent is basic copper sulfate, basic copper hydrochloride or copper hydroxide.

In particular, at the maximum design air flow rate of the honeycomb rotor, the Re number of the laminar flow in the honeycomb flow passage does not exceed 1150.

In particular, when zeolite is mixed with a copper ion elution-type antibacterial agent and coated, and the zeolite and the copper ion elution-type antibacterial agent are used in combination, the PH needs to be adjusted to a range of 5 to 12.

In particular, ion exchange resin particles are adhered to the coating layer of the film containing the copper ion elution-type antibacterial agent.

In particular, ion exchange resin particles are adhered to a coating layer of a sheet containing a copper ion elution type antibacterial agent, and in order to adhere the ion exchange resin to a sheet material constituting a honeycomb rotor, it is necessary to adjust the pH of a binder containing the copper ion elution type antibacterial agent to 4 to 10.

In particular, a film containing a copper ion elution-type antibacterial agent is formed by coating a honeycomb structure with a basic copper sulfate aqueous solution containing basic zinc sulfate and/or basic magnesium carbonate and the like.

Particularly, mixing water into lime to form lime milk, fully stirring and cooling; then, adding a copper sulfate solution into each lime milk container while cooling and stirring to prepare the alkaline copper sulfate bactericide; mixing 5 parts of the alkaline copper sulfate bactericide in 25 parts of water, and adjusting the pH value to be within the range of 5-9; mixing 60 parts of 4A zeolite into the prepared aqueous solution, and fully stirring to obtain coating slurry; coating the slurry on two sides of an aluminum foil with the thickness of 30 microns by using a coating machine, and drying to obtain a full heat exchanger rotating wheel substrate plate with the thickness of less than 110 microns; after the aluminum plate is processed into a corrugated shape with the space of 2.6mm and the height of 1.4mm, the opening rate is 75 percent, and the equivalent diameter is

The run-up interval at 4m/s is about 24mm long; cutting into 50mm width, winding on a mandrel, bonding, and processing into 50mm thick runner shape; the above-mentioned adhesive containing a basic copper sulfate bactericide is also used for the adhesive for corrugating and winding.

Particularly, mixing water into lime to form lime milk, fully stirring and cooling; then adding a copper sulfate solution into each lime milk container while cooling and stirring to prepare the alkaline copper sulfate bactericide; mixing 10 parts of propylene emulsion adhesive into 100 parts of water, adding 2 parts of the basic copper sulfate bactericide, mixing and preparing into copper ion impregnation liquid; and spraying the copper ion impregnation liquid on the total heat exchange rotating wheel to soak the copper ion impregnation liquid, blowing off the residual liquid, and drying at the temperature of about 100 ℃ to obtain the copper ion coating honeycomb total heat exchange rotating wheel.

Particularly, 100 parts of vinyl acetate emulsion adhesive is added into a part of copper hydrate agent mixed with basic copper sulfate, basic zinc sulfate and basic magnesium carbonate for mixing; coating the mixed adhesive on both sides of 30 μm aluminum foil, spraying ion exchange resin powder, bonding, drying, and fixingObtaining a substrate plate for the total heat exchanger runner with the thickness of 110 microns; when the base material plate is processed into the corrugated shape with the space of 3.4mm and the height of 2.0mm, the diameter of the corrugated shape is correspondingly

The aperture ratio was 81.8%; then, the corrugated product is wound on a mandrel and is bonded to form a runner shape with the thickness of 200mm, and the runner shape has antiviral property and antibacterial property; the length of the run-up section used by the runner at 5m/s is 58 mm; the adhesive containing the alkaline copper sulfate bactericide is used for both corrugating and winding; cu ions are uniformly dispersed throughout the sheet.

The invention has the advantages and effects that: the air purifier effectively discharges most of viruses or bacteria contained in the air, even if a trace amount of viruses or bacteria are attached to the honeycomb, the viruses or bacteria are not scattered and transferred again, the sterilization effect can be realized through copper ions in a short time, and the viruses or bacteria attached to the honeycomb are inactivated and are not activated any more. In addition, in the aspect of production, the antibacterial agent is economical, practical and safe, and compared with the traditional full heat exchanger rotating wheel, the antibacterial agent does not need special devices or materials, and is easier to produce conveniently. The secondary infection of virus or bacteria is reduced, the infection risk is reduced, and the safety of normal ventilation of the air conditioning equipment is guaranteed.

Drawings

FIG. 1 is a schematic diagram illustrating the construction and principle of a prior art total heat exchanger;

FIG. 2 is a schematic diagram showing that bacteria or mold may be attached to the inner wall of the honeycomb rotor during air return to exhaust;

FIG. 3 shows that when the outside air of the honeycomb with rotating wheels is blown, the bacteria or mold possibly attached to the inner wall of the honeycomb is transferred back to the room

A schematic diagram;

FIG. 4 shows the adhesion of bacteria or mold at the instant of air flow stoppage when switching the honeycomb runner area

A schematic diagram;

FIG. 5 shows the bacterial or fungal adhesion in the reverse and turbulent flow conditions after the honeycomb runner area is switched

Is shown schematically;

FIG. 6 shows bacteria or mold stagnation attached to the honeycomb wall in the laminar flow state after switching of the runner region

Leaving the schematic diagram;

FIG. 7 is a photograph of a Cu ion mapping SEM in an example of the invention;

FIG. 8 is a table 1 showing the results of the prior art transfer test of bacteria by rotating wheel hive using air sterilized by high performance HEPA filter as the outside air, and the average value of three measurements of 500L capacity;

FIG. 9 is a table 2 showing the results of a mold transfer test in a runner honeycomb using air sterilized by a high performance HEPA filter as the outside air in the prior art, and a secondary measurement average value of 200L capacity;

FIG. 10, Table 3, is a calculation example of the respective diameters and flow rates of the honeycombs and the Re number in the embodiment of the present invention;

FIG. 11 and Table 4 show the corresponding diameters and flow rates and the length of the walk-assist zone in the examples of the present invention.

Detailed Description

The principle of the present invention is that, as shown in fig. 2 and 3, the air flow is temporarily stopped for a short time before and after the return air to the exhaust area is switched to the outside air to the intake area by the rotation of the rotor, and as shown in fig. 4, 5 and 6, the used air which has been transferred and contained in the honeycomb is temporarily disturbed when the reverse flow occurs, the bacteria or mold in the air are attached to the honeycomb wall, and the air passing through the rotor becomes laminar even if the air is further introduced, so that the attached bacteria or mold is not peeled off again, but may be attached to the air until the life ends. Meanwhile, researches find that the antibacterial and antiviral coating technology can obtain more outstanding working effect under the condition of combining the reasonable matching of the structure and the operating parameters of the honeycomb rotating wheel.

In 3.3.2020, The document states that coronavirus survives for 3 hours in The air, 2-3 days on The surface Of plastic or stainless steel, and 24 hours even on The surface Of a carton. But showed death after 4 hours on the copper surface. The research of the invention finds that copper ions can be formed on the surface of copper, and the copper ions generate bactericidal property. However, copper is a metal which is difficult to ionize, so that the alkaline copper-based antibacterial agent which is easy to ionize has a better effect, and copper ions react with viral DNA to exert antiviral property. The effect of copper ions more antiviral than other materials has been demonstrated for coronaviruses, and hiding the effect may not be suspected if it is a more easily ionized alkaline copper-based antimicrobial.

The present inventors have also found that silver-based antibacterial agents are not suitable as subject of the present invention in terms of durability or cost, and copper-based non-leaching type antibacterial agents are not satisfactory in terms of effect or cost. The copper ion elution type antibacterial agent is typically bordeaux mixture of basic copper sulfate and slaked lime, but is a common pesticide, and copper sulfate is toxic, i.e., it is still determined to be a toxic substance for external use, and generally regarded as an agent that cannot be applied to a person or worn on the body, so that the conventional theory in the art excludes the possibility of applying the agent to an air conditioner.

The present inventors have also found that, since the Reynolds number, i.e., the Re number, in the transition region from laminar flow to turbulent flow is 2300 to 4000, it is necessary to select the Re number of 2300 or less, preferably 1150 or less, in designing and manufacturing a honeycomb structure in order to ensure that the laminar flow can be formed even with the maximum designed air volume. Meanwhile, in order to prevent the temporarily attached viruses or bacteria from being peeled off and scattered, it is necessary to effectively limit the run-up section length in which the air flowing into the honeycomb is completely changed from the turbulent flow to the laminar flow.

The invention particularly confirms that the copper ion dissolved antibacterial agent is safe and feasible to be used as the inner surface coating of the runner honeycomb which can not be touched by human bodies.

In the invention, the rotary total heat exchanger runner effectively treats the return air, namely viruses or bacteria contained in the used air, the viruses or bacteria attached to the honeycomb of the runner are not peeled off from the honeycomb and then scattered to the air supply side during heat exchange, and the total heat exchange runner quickly and effectively achieves the aim of antibacterial, antiviral and harmless chemical engineering in a short time.

In the present invention, the optimum working conditions include:

1) the condition is that the maximum air volume in the laminar flow is such that the Re number of the honeycomb air flow is 2300 or less, preferably 1150 or less.

The Re number is calculated according to the formula Re ═ flow rate in the honeycomb × equivalent diameter d ÷ dynamic viscosity υ of air. The Re number of 2300 or less means that, as shown in Table 3, when the total wind speed at the design maximum wind volume is 4m/s, if the open area ratio of the honeycomb is 80%, the flow speed in the honeycomb is 5m/s, and the equivalent diameter or corresponding diameter of the honeycomb is smaller than that

The equivalent diameter or the corresponding diameter d is calculated as d is 4 × the cross-sectional area of the honeycomb flow path s × the length of the honeycomb flow path immersion side or the inner circumference pl.

The honeycomb flow path immersion length can be calculated by an approximate triangle or a sine curve, but it is accurate to calculate the immersion length by using the liner, the corrugation length, and the corrugation height data at the time of corrugating. The removal of the adhesive from the corrugated product measures the liner and the developed length of the corrugations.

2) The second condition is that the interval from the turbulent flow to the complete laminar flow of the air flowing into the honeycomb is called a run-up interval. The run-up section length l can be calculated by a calculation formula of l ═ 0.05 × Re × equivalent diameter d, and the calculation results are shown in table 4. The run-up interval length l is preferably below the runner width 1/2.

The invention provides a system solution according to the discovery, which specifically comprises that laminar flow is formed even when the rotary total heat exchanger is in the maximum air quantity, the length of a walking assisting section until the inflow air of the honeycomb is completely changed into the laminar flow is not more than one half of the width of a runner, namely the length of a flow path, and the reverse flow repeatedly occurs after passing through a rotation switching area of the runner, and on the basis, the surface of the honeycomb is coated with a copper ion dissolution type antibacterial agent, so that the honeycomb runner has reliable and stable antiviral and antibacterial performance.

The copper ion-containing elution-type antibacterial agent is basic copper sulfate, basic copper hydrochloride or basic copper hydroxide.

The invention comprises the following steps:

1) even when the maximum design air volume of the honeycomb rotor is reached, the Re number of the laminar flow in the honeycomb flow channel does not exceed 2300, and the surface of the film constituting the honeycomb is coated with a coating layer containing a copper ion-eluting antimicrobial agent in the assist zone until the honeycomb inflow air becomes completely laminar, and the equivalent diameter of the honeycomb is smaller than the rotor width 1/2.

2) The zeolite structure and the surface coating of the honeycomb are coated with a copper ion-containing elution type antibacterial agent film.

3) Ion exchange resin particles are adhered on the film coating of the copper ion elution type antibacterial agent.

The honeycomb runner for the air conditioner is used for total heat exchange or dehumidification air conditioning or dual-purpose honeycomb runner for total heat exchange and dehumidification air conditioning.

The invention is suitable for the rotating wheel of total heat exchange or dehumidifying air conditioner, and can also be suitable for the rotating wheel which can be used for both total heat exchange and dehumidifying operation, including the rotating wheel which is used for general buildings, such as old people houses or waiting rooms of hospitals, schools, public facilities, cruise ships, hotels and other commercial facilities, and when the risk of secondary infection is increased after the unpredicted virus or bacteria are diffused, the risk of infection can be reduced by using the honeycomb rotating wheel for air conditioner, and the cost increase is controlled in the lowest range.

The total heat exchanger of the present invention is not used in a contaminated area of a hospital, but used in a general building, a waiting room of a hospital, a school, a public facility, a commercial facility, etc., and has an effect of reducing a risk of secondary infection when the risk of secondary infection increases due to contamination with an unexpected virus, etc.

The present invention will be further described with reference to the following examples.

Example 1: 60 parts of 4A zeolite powder and 30 parts of water are mixed, fully stirred, 10 parts of propylene latex adhesive is added into the pasty mixed solution, and then stirred to prepare zeolite coating slurry. Coating the slurry on a 30-micron and 200-mm-wide aluminum foil on a coating machineDrying the two surfaces of the plate to obtain the total heat exchange honeycomb rotating wheel substrate plate with the thickness of less than 110 microns. After the substrate board is processed into the corrugated board with the space of 4.1mm and the height of 1.8mm, the corrugated board with the corresponding diameter is formed

The molded article of (3). Then the whole heat exchanger runner is made into a 200mm thick whole heat exchanger runner after winding and bonding.

Example 2: mixing water into lime to form lime milk, stirring thoroughly, and cooling. Then adding copper sulfate solution while cooling and stirring in each lime milk container to prepare the alkaline copper sulfate bactericide. Mixing 5 parts of the basic copper sulfate bactericide in 25 parts of water, and adjusting the pH value to be within the range of 5-9. 60 parts of 4A zeolite was mixed with the aqueous solution prepared above and sufficiently stirred to obtain a coating slurry. The slurry was coated on both sides of a 30 μm aluminum foil by a coater, and dried to obtain a 110 μm thick substrate plate for a full heat exchanger wheel. After the aluminum plate is processed into a corrugated shape with the space of 2.6mm and the height of 1.4mm, the opening rate is 75 percent, and the equivalent diameter is

The run-up interval at 4m/s is about 24mm long. Cut into 50mm width, wound on a mandrel, adhered and processed into a wheel shape with 50mm thickness. The above-mentioned adhesive containing an alkaline copper sulfate bactericide is also used for the adhesive for corrugating and winding. In another step, water is mixed into lime to form lime milk, and the mixture is sufficiently stirred and cooled. Then adding copper sulfate solution while cooling and stirring in each lime milk container to prepare the alkaline copper sulfate bactericide. 10 parts of propylene emulsion adhesive is mixed into 100 parts of water, then 2 parts of the basic copper sulfate bactericide is added, and the mixture is mixed to prepare copper ion impregnation liquid. And spraying the copper ion impregnation liquid on the total heat exchange rotating wheel to soak the copper ion impregnation liquid, blowing off the residual liquid, and drying at the temperature of about 100 ℃ to obtain the copper ion coating honeycomb total heat exchange rotating wheel.

Example 3: 100 parts of vinyl acetate emulsion adhesive is added into a part of copper hydrate and basic magnesium carbonate mixed with basic copper sulfate, basic zinc sulfate and basic magnesium carbonate for mixing. And coating the mixed adhesive on two sides of a 30-micron aluminum foil, spraying ion exchange resin powder, bonding, drying and fixing to obtain the substrate plate for the total heat exchanger runner with the thickness of 110 microns. When the base material plate is processed into the corrugated shape with the space of 3.4mm and the height of 2.0mm, the diameter of the corrugated shape is correspondingly

The aperture ratio was 81.8%. Then the corrugated product is wound on a mandrel and bonded to form a runner with the thickness of 200mm, and the runner has antiviral property and antibacterial property. The runner used a run-up interval of 58mm at 5 m/s. The above-mentioned binder containing an alkaline copper sulfate bactericide is used for both corrugating and wrapping. Fig. 7 is a photograph of a Cu ion mapping SEM, from which it can be seen that Cu ions are uniformly dispersed throughout the sheet.

In the embodiment of the present invention, although copper sulfate, a metal-based bactericide such as copper and zinc, etc., must be used with caution when used for products which are touched by general people or worn by human beings because of toxicity and high toxicity of copper sulfate, if it is the inner wall of the honeycomb of the rotor for an air conditioner, human beings do not touch it, and scattering does not occur because of the adhesive being mixed in, and even if a small amount of scattering and outflow occurs due to damage of the rotor or influence of water, the harmfulness is low. There is no fear that drug-resistant bacteria will be produced, so that it can be used with ease. The basic copper sulfate bactericide has high safety, and the Bordeaux mixture is the mixed liquid of basic copper sulfate and calcium hydroxide and is a pesticide with wide application. Moreover, the degree of residue on agricultural products is not dangerous to the human body and is still identified as organic agricultural products by many national regulations. The inner surface of the honeycomb of the wheel coated with the basic copper sulfate bactericide does not come into direct contact with the human body, and, because it is fixed on the surface of the honeycomb, there is little possibility of scattering. It is proved that even a trace amount of the liquid medicine can contact the human body in the processes of maintenance, breakage accident or decomposition and removal, the harm is extremely small.

In the embodiment of the present invention, the copper ion elution-type antibacterial agent may corrode the metal structure of the aluminum honeycomb if it is used directly on the honeycomb, and therefore, if it is used on the heat exchanger made of aluminum, it is considered carefully that it is not applied directly to the surface of the metal structure. In the case of the aluminum foil honeycomb structure, after the resin coating is applied to the surface thereof, a corrosive copper ion-containing elution type antibacterial agent may be used, but the cost is increased, and in this case, the PH of the copper ion-containing elution type antibacterial agent is preferably adjusted to 4 to 10, and naturally, the PH is preferably adjusted to 5 to 9. However, this application is also possible because, on drying, for example basic copper sulfate is fixed to the coating, the corrosion of the aluminum only remains in limited places at the interface.

In the embodiment of the present invention, when the used air in the air-conditioned room passes through the return air to the exhaust side, there is a possibility that viruses or bacteria contained in the used air may contact the cell walls before the passing air is completely in a laminar flow state. After the used air is completely changed into laminar flow, the virus or bacteria contained in the air can be directly discharged through the exhaust without contacting the honeycomb wall. Then, the honeycomb is switched to the outside air supply area after the runner is rotated, and when the outside air flows into the honeycomb, the inflow air becomes a complete laminar flow through the run-up section, but since the area where the return air flows into the virus or bacteria attached to the exhaust area becomes a laminar flow, the virus or bacteria attached to the honeycomb wall is not peeled and dispersed again, and is attached by copper ions all the time, and activation does not occur for a short time.

In the embodiment of the invention, the copper ion-dissolved antibacterial agent is mixed in the adhesive or the coating agent and then coated on the surface of the honeycomb, so that the antivirus full heat exchanger rotating wheel can be formed. However, if used as such, aluminum as a base material of the heat exchange honeycomb is corroded and various problems may occur. Therefore, prior to coating, the PH needs to be adjusted to ensure that the aluminum does not corrode.

In the embodiment of the invention, in order to add latent heat exchange performance, zeolite is mixed in a copper ion elution type antibacterial agent for coating, and when the zeolite and the copper ion elution type antibacterial agent are used in a matching way, the PH value needs to be adjusted to be in a range of 5-12 so as to ensure that the zeolite is not decomposed.

In the embodiment of the present invention, it is preferable to use a basic copper sulfate hydratase containing basic zinc sulfate and/or basic magnesium carbonate for the purpose of improving the stability, safety and effect of basic copper sulfate. Further, since aluminum has increased solubility under acidic conditions of pH5 or less or alkaline conditions of pH 9 or more, a copper ion-based hydrating agent which forms a stable coating in the range of pH5 to 9 is selected and used while adjusting the pH range as necessary.

In embodiments of the present invention, without cooling sectors, the air contained within the voids of the honeycomb may be moved to other areas by the rotation of the wheel. The amount of transfer varies depending on the number of revolutions of the rotor, the wind speed, the width of the rotor, and the opening ratio, and for example, when the number of revolutions of the rotor is 16rpm, the wind speed of the rotor is 2m/s, and the opening ratio is 85%, the transfer ratio is about 5%. The concentration of the organic solvent at 4m/s was about 2.5%.

Claims

1. An antibacterial and antiviral honeycomb rotor having a surface coating of a copper ion-eluting agent for air conditioners, characterized in that even when the maximum design air volume of the honeycomb rotor is reached, the number of Re in the honeycomb flow path is not more than 2300 and the air is in a laminar state, and the size of the honeycomb is sufficiently small so that the length of the assist-travel section required for the air flowing into the honeycomb flow path to become completely laminar is less than 1/2 of the thickness of the rotor, and the honeycomb flow path of the rotor is formed of a sheet material coated with a coating containing a copper ion-eluting antimicrobial agent.

2. The copper ion-eluting antibacterial/antiviral honeycomb rotor for air conditioners as claimed in claim 1, wherein the copper ion-eluting type antibacterial agent is basic copper sulfate, basic copper hydrochloride or copper hydroxide.

3. The antibacterial and antiviral honeycomb rotor for an air conditioner having a surface coating with a copper ion stripping agent according to claim 1, wherein the Re number of the laminar flow in the honeycomb flow channel at the maximum design air volume of the honeycomb rotor is not more than 1150.

4. The copper ion-eluting agent surface-coated antibacterial/antiviral honeycomb rotor for air conditioners as claimed in claim 1, wherein the zeolite is mixed with a copper ion-eluting antibacterial agent and coated, and when the zeolite and the copper ion-eluting antibacterial agent are used in combination, the PH is adjusted to a range of 5 to 12.

5. The copper ion-eluting antimicrobial/antiviral honeycomb rotor for air conditioners as claimed in claim 1, wherein the copper ion-eluting antimicrobial agent-containing sheet is coated with ion exchange resin particles, and the pH of the binder containing the copper ion-eluting antimicrobial agent is adjusted to 4 to 10 in order to bond the ion exchange resin to the sheet material constituting the honeycomb rotor.

6. The air conditioner copper ion stripping agent surface coating antibacterial and antiviral honeycomb rotor as claimed in claim 1, characterized in that the honeycomb structure is coated with a basic copper sulfate hydratase containing basic zinc sulfate and/or basic magnesium carbonate, etc. to form a copper ion stripping type antibacterial agent-containing film.

7. The antibacterial and antiviral honeycomb rotor for a surface coating of a copper ion-dissolving agent for an air conditioner according to claim 1, wherein water is mixed into lime to form lime milk, and the mixture is sufficiently stirred and cooled; then, adding a copper sulfate solution into each lime milk container while cooling and stirring to prepare the basic copper sulfate bactericide; mixing 5 parts of the alkaline copper sulfate bactericide in 25 parts of water, and adjusting the pH value to be within the range of 5-9; mixing 60 parts of 4A zeolite into the prepared aqueous solution, and fully stirring to obtain coating slurry; coating the slurry on two sides of an aluminum foil with the thickness of 30 microns by using a coating machine, and drying to obtain a total heat exchanger rotating wheel substrate plate with the thickness of less than 110 microns; after the aluminum plate is processed into a corrugated shape with the space of 2.6mm and the height of 1.4mm, the opening rate is 75 percent, and the equivalent diameter is

1.20mm, the run-up interval at 4m/s is about 24mm long; cutting into 50mm width, winding on a mandrel, bonding, and processing into 50mm thick runner shape; the above-mentioned adhesive containing a basic copper sulfate bactericide is also used for the adhesive for corrugating and winding.

8. The antibacterial and antiviral honeycomb rotor for a surface coating of a copper ion-dissolving agent for an air conditioner according to claim 1, wherein water is mixed into lime to form lime milk, and the mixture is sufficiently stirred and cooled; then adding a copper sulfate solution into each lime milk container while cooling and stirring to prepare the alkaline copper sulfate bactericide; mixing 10 parts of propylene emulsion adhesive into 100 parts of water, adding 2 parts of the basic copper sulfate bactericide, mixing and preparing into copper ion impregnation liquid; and spraying the copper ion impregnation liquid on the total heat exchange rotating wheel to soak the copper ion impregnation liquid, blowing off the residual liquid, and drying at the temperature of about 100 ℃ to obtain the copper ion coating honeycomb total heat exchange rotating wheel.

9. The copper ion stripping agent surface coating antibacterial and antiviral honeycomb runner for air conditioners as claimed in claim 1, wherein 100 parts of vinyl acetate emulsion binder is added to a part of copper hydratase and basic magnesium carbonate mixed together; coating the mixed adhesive on two sides of a 30-micron aluminum foil, spraying ion exchange resin powder, and bonding to obtain a substrate plate for a full heat exchanger runner with the thickness of 110 microns after drying and fixing; when the base material plate is processed into the corrugated shape with the space of 3.4mm and the height of 2.0mm, the diameter of the corrugated shape is correspondingly

The aperture ratio was 81.8%; then, winding the corrugated product on a mandrel and bonding the corrugated product to form a runner shape with the thickness of 200mm, and the runner shape has antiviral property and antibacterial property; the length of the run-up section used by the runner at 5m/s is 58 mm; the adhesive containing the alkaline copper sulfate bactericide is used for both corrugating and winding; cu ions are uniformly dispersed in the wholeOn a thin plate.