FI129333B - Disinfection device and method for disinfection - Google Patents

Abstract

The invention relates to a disinfection method for use for cleaning. The invention is characterized in that hydrogen peroxide (H 2 O 2) is sprayed from one or more containers (9) with liquid pressure created by one or more pumps (10) through one or more spray means (4) to one or more evaporation means (5) where the hydrogen peroxide (H 2 O 2) converted to hydrogen peroxide gas, with which the cleaning disinfection is performed, and that hot gas (6) is blown with one or more fans (1) through the evaporation means / evaporation means / an evaporation surface / evaporation surfaces (5) towards the object / objects / space to be cleaned. The invention also relates to a disinfection device for use in cleaning. The invention is characterized in that the disinfection device comprises one or more containers (9) and one or more pumps (19) for storing and moving hydrogen peroxide (H 2 O 2) through one or more spray means (4) to one or more evaporation means (5).

Description

DISINFECTANT AND METHOD OF DISINFECTION

FIELD OF THE INVENTION The present invention relates to a disinfection method for use in cleaning in objects to be cleaned, such as a human and animal habitat, and a human / animal food growth / storage environment, or a human / animal transport / transportation environment. The invention further relates to a disinfection device for use in cleaning in objects to be cleaned, such as a human and animal habitat, and a human / animal food growth / storage environment or a human / animal transport environment.

ITEMS TO BE FURTHER SPECIFIED To be used to kill microbes and bacteria. Clean any premises or objects contaminated with microbes, bacteria, spores, such as hospitals, —Disinfection is required: - In hospitals to clean the premises. For the control of nosocomial bacteria and infectious diseases. - For cleaning ambulances and ambulances. - For the cleaning of vehicles and equipment in fire and rescue services. - For cleaning air conditioning systems in buildings. - Laboratory for cleaning the premises (eg safety cabinets). - In the food industry for cleaning rooms, machines and means of transport. - Manufacture of biofuels - Reducing product losses. Only the contaminated object is cleaned. N - Defense Forces, bioterrorism, biosecurity, clean up contaminated 3 items / equipment. 2 - In security applications, in security applications, the means of transport and other equipment, e.g. accessories, are cleaned. + 30 - Animal diseases / animal production holdings. Clean up contaminated premises. O - Transport logistics (ships, planes, etc.) clean contaminated 3 means of transport. N - for the control of pests and micro - organisms, for the control of pests such as ants, for the control of sugar larvae, etc.

Common names for the disadvantages to be disinfected and their targets.

1. Bacteria, migrobes, viruses and pests. For example, objects / facilities used by people and animals in hospitals, households, shops, laboratory laboratories.

2. Bacteria, migrobes, viruses and pests. Cleaning of premises / areas after contamination, eg after biological warfare / terrorism. After a natural disaster (for the destruction of living material, eg for the disinfection of bodies, in which case the bodies are unable to spread bacteria, migrants or viruses)

3. Bacteria, migrobes, viruses and pests. Various ducts, lines, tunnels for material transfer, eg Ventilation ducts, water pipes (empty), Sewer pipes

4. Bacteria, migrobes, viruses and pests. Vehicles on land, water and air, eg ambulances, fire trucks, buses, cars, aircraft, ships, rockets,

5. Bacteria, migrobes, viruses and pests.

BACKGROUND OF THE INVENTION At present, purification is carried out with dilute hydrogen peroxide by spraying. the substance directly to the objects to be cleaned / cleaned.

The problem is immobility, not everywhere. Corrosion effect because hydrogen peroxide is corrosive in liquid form. It is difficult to adjust the amount of hydrogen peroxide because it is impossible to apply hydrogen peroxide evenly to the surface to be cleaned. The concentration of hydrogen peroxide is uneven, due to which the purification time varies. Inaccurate dosing near the moisture point results in condensation of hydrogen peroxide back into a liquid, leaving liquid hydrogen peroxide in the object to be cleaned, which corrodes the object to be cleaned. At present, purification with hydrogen peroxide is slow, inaccurate and therefore costly. In addition, part of the object to be cleaned is not cleaned evenly or at all.

A disinfection method and a disinfection device for use in cleaning are known from JP 2003339820 A (figure; machine translation paragraphs [001 3] to [0024]). In the method, hydrogen peroxide is sprayed from the tank by the liquid pressure caused by the pump through the spraying means to the evaporating means, to which a hot stream of carrier gas is also introduced.

In the evaporator, hydrogen peroxide is converted to hydrogen peroxide gas.

A blower is used to blow the carrier gas stream.

In JP 2003339820 A the evaporating member consists of a long straight open space with closed walls, which in the publication is referred to as the rinsing zone / zone into which the rinsing zone / zone is sprayed with air and the hydrogen peroxide solution is mixed with electric heater.

From the machine translation, “flushing zone / zone, where an electric heater is installed downstream of the spray nozzle on the enlarged diameter of the spray nozzle, the electric heater is long enough, the hydrogen peroxide solution evaporates into fine particles.

In addition, the flushing zone / zone is cylindrical or trumpet-shaped when viewed from the side and is preferably mounted vertically or horizontally.

There is no evaporation surface in the rinsing area / zone.

EP2650023A1 (full publication; especially paragraphs 40024); pictures) a disinfection method and a disinfection device for use in cleaning are known.

In the method, hydrogen peroxide is atomized from the tank by the liquid pressure caused by the pump through the atomizing member to the evaporator, to which a hot gas stream is also introduced.

In the evaporator, hydrogen peroxide is converted to hydrogen peroxide gas.

In particular, it can be seen from Figure 4 that the evaporating member is a closed container with no evaporating surface inside.

From US2004265459A1 (paragraphs [0006] to [0009], [0065] to [0068]); the figure discloses a disinfection method and a disinfection device for use in cleaning.

In the method, a disinfectant (e.g. hydrogen peroxide) is sprayed from the tank with the liquid pressure caused by the pump through the spray means to the evaporator, N to which a hot flow of carrier gas is also introduced.

In the evaporator, hydrogen peroxide N is evaporated.

The publication does not mention that a blower is used specifically to blow the hot carrier gas.

In particular, it can be seen from Figure 1 that the evaporator is a closed tank with no evaporating surface inside but only baffles for mixing the carrier gas and acetic acid. & In all publications JP 2003339820 A, EP2650023A1 and US2004265459A1, the evaporator member consists of a closed tank-like structure with no evaporation surface or means inside the tank-like N35 structure.

Well-known publications in the field include, in addition to the above, e.g. ER 0481361 A1, US 2013078143 A1, JP 2005205098 A and JP 3214347 B2.

OBJECT OF THE INVENTION It is intended that the disinfection be performed with hydrogen peroxide gas (H 2 O 2) so that no corrosion occurs because hydrogen peroxide (H 2 O 2) is not corrosive in the gaseous state. The above drawbacks can be eliminated and the above-mentioned object is achieved by a disinfection method according to the invention, which is characterized by what is defined in the characterizing part of claim 1, and preferred embodiments of the method are the subject of claims 2 to 4. The disinfection device according to the invention is characterized by what is defined in the characterizing part of claim 5, and preferred embodiments of the fastening member are the subject of dependent claims 6 to 8. The main advantages of the invention are that the disinfection method according to the invention provides an accurate dosing of hydrogen peroxide gas to the object to be cleaned. The exact amount of hydrogen peroxide can be accurately metered by spraying hydrogen peroxide from one or more nozzles as a liquid mist onto an evaporating material or evaporating surface where the hydrogen peroxide evaporates rapidly into a gas. In particular, hydrogen peroxide sprayed from several nozzles spreads evenly on the evaporating material or evaporating surface. The amount of hydrogen peroxide can be dispensed individually through the nozzles to different sides of the evaporation material / evaporation material / evaporation surface. With one or more nozzles, the hydrogen peroxide liquid N is sprayed as an aerosol or droplets into a special evaporation chamber in which the hydrogen peroxide N is vaporized with a warm gas, a microwave wave, a laser or an infrared heated gas. From the closed evaporation chamber, steam is blown through the evaporation cell / surface to be cleaned. - Evaporation E 30 cell / evaporation surface stops liquid peroxide remaining in liquid form - which is evaporated in the evaporation cell / one or more evaporation surfaces. It is clear that the use of the invented disinfection method achieves large = cost savings in cleaning.

N - GENERAL INFORMATION ABOUT HYDROGEN PEROXIDE (Wikipedia) https: //en.wikipediaorg/wiki/Hydrogen peroxides Elsewhere

Hydrogen peroxide (sometimes hydrogen peroxide) H 2 O 2 is another oxide of hydrogen with CAS number 7722-84-1. Another, more familiar hydrogen oxide is water (H 2 O). Features [edit | hydrogen peroxide is a highly oxidizing agent. It decomposes on heating to water 5 and oxygen, releasing energy in the process. Some metals and impurities act as catalysts in the decomposition process. Hydrogen peroxide fluid can be stabilized with, for example, phosphoric, sulfuric, boric or citric acid, acetanilide or acetophenethidine to slow down the decomposition process. Hydrogen peroxide below 85% does not burn, but it is a highly oxidizing agent, so hydrogen peroxide together with a combustible substance poses a serious risk of burns or explosions. Hydrogen peroxide above 85% decomposes on decomposition with a blue flame, i.e. its decomposition reaction is different from that of more dilute hydrogen peroxide solutions. On decomposition, hydrogen peroxide is converted to water and oxygen: 2H202 → 2H2O + On. Hydrogen peroxide is unstable and decomposes spontaneously, but the reaction is very slow. The reaction can be accelerated by using a catalyst (e.g. manganese dioxide). In hydrogen peroxide the oxygen oxidation number is -I, in the decomposition products 0 (02) and -II (H2O). Thus, a proportionalization occurs in the reaction, in which the oxidation number both increases and decreases. The bleaching and disinfecting ability of hydrogen peroxide is based on the highly reactive free oxygen atom formed in the decomposition reaction. Applications Hydrogen peroxide has been used, among other things, as a fuel oxidizer for launch vehicles. In industry, hydrogen peroxide is used, inter alia, for bleaching pulp and textiles and as a disinfectant in the pharmaceutical and food industries. Hydrogen peroxide used by industry generally contains either 35 or 50% hydrogen peroxide, but other strengths are available. Hydrogen peroxide from 30 to 59% can be in the lower transport class. © 30 100% hydrogen peroxide can also be used for disinfection.

E - At low concentrations (less than 5%), hydrogen peroxide is used in cosmetics & hair bleaching, for example, and as a contact lens cleaning solution = and for wound disinfection. The disinfectability is based on the decomposition of hydrogen peroxide when the blood acts as a catalyst. The oxygen released kills bacteria. [?! [3]

Hydrogen peroxide is now widely used because its possible release into the air or otherwise into nature causes only short-term harm. Once released, it decomposes fairly rapidly into water and oxygen and thus does not cause long-term problems for the environment or the population.

The invention will now be described in detail with reference to the accompanying drawings. Figure 1 shows a disinfection device according to the invented disinfection method in a schematic view, viewed vertically from above, the side view can be exactly similar if the disinfection device is square, rectangular or circular when viewed from the end.

Figure 2 shows a schematic view of another disinfection device according to the invented disinfection method, seen perpendicularly from the side.

The parts and parts of the disinfection device parts shown in the figures.

One or more fans 1, one or more heating / heating panes 2, one or more evaporation chambers 3, one or more atomizing members 4 and one or more evaporating members 5.

The fan 1 is best known as an axial fan or a similar gas transfer device which blows gas in the direction of the arrow 6. Most preferably, the filtered air, known without a filter / purifier known in the art of construction, is not shown in the figures. Gas 6 may be air, nitrogen, argon or a mixture of the above.

Fan 1 The fan blows gas through the heating / heating section 2 into the evaporation chamber 3.

The heating / heating section 2 is most preferably one or more microwave transmitters and / or one or more laser units and / or one or more infrared heaters and / or an electric heater with electric resistance and / or e.g. = air heater with liquefied gas. The function of the heating / heating section 2 is to heat / heat the air to such an extent that hydrogen peroxide evaporates.

E The spraying member 4 is a liquid nozzle known in advance, from which liquid hydrogen peroxide is sprayed by means of liquid pressure by pumping hydrogen peroxide as a small mist into the evaporation chamber 3 from one or more holes in the spraying member 4. The shape of the hole (s) of the spraying member 4 may be circular, fan-shaped or other known shape.

The blower 1 blows hydrogen peroxide through the mist evaporating member 5, whereby the evaporating member 5 evaporates the hydrogen peroxide mist into hydrogen peroxide gas due to the large number of contact surfaces of the evaporating member 5.

The hydrogen peroxide mist adheres to the large amount of contact surface of the evaporator 5, so that although the external dimensions of the evaporator 5 are relatively small, the evaporator 5 has a large evaporation surface due to its fibrous material, each fiber surface being part of the evaporation surface.

This hydrogen peroxide gas is used for disinfection, the hydrogen peroxide gas content is high from 600 to 800 million particles per cube, whereby the disinfection of the hydrogen peroxide gas is very fast and efficient.

The evaporating member 5 may be a known fibrous material such as fabric fiber, fiberglass.

Also shown in the figure is hydrogen peroxide mist 7, hydrogen peroxide gas 8. Tank 9 is a known tank in which hydrogen peroxide is stored.

Pump 10 is a known pump for transferring hydrogen peroxide in liquid form.

The pump 10 may be a variable displacement pump or provided with a volume control valve, a separate volume control valve or a volume control valve located inside the pump.

The preheater 11 is a known electric or liquid-operated or fuel-operated liquid heater for preheating a hydrogen peroxide liquid.

All parts of the disinfection device are adjustable e.g. the temperature, speed and pressure can be - adjusted as desired.

All parts can be one or more, e.g. from one tank 9 can be treated by piping with one preheater 11, by means of a pump 10 the hydrogen peroxide mist 7 coming through all the spraying means 4. Figure 2 shows one or more pipelines 12 for hydrogen peroxide and one or more legs 13 , to keep the device in Figure 2 upright.

In Fig. 2, the evaporator 5 is a bag into which gas 6 is blown from the lower end by a fan 1, whereby the gas 6 fills the evaporator 5 to the position of Fig. 2.

At the same time, the gas 6 is heated by the heating / heating section 2. The pumping of hydrogen peroxide is then started in one or more pipelines 12 located approximately in the middle of the apparatus. the hydrogen peroxide is converted to hydrogen peroxide gas 8. The excess E hydrogen peroxide mist 7 flows down the inner surface of the evaporator 5, from where it S is collected in the tank 9 and pumped back into circulation. 3 S The figure shows a disinfection method for use in cleaning, N 35 in which hydrogen peroxide (H 2 O 2) is sprayed from one or more tanks 9 by liquid pressure caused by one or more pumps 10 through one or more evaporators 4 to one or more evaporators 5, where hydrogen peroxide (H 2 O 2) is converted to hydrogen peroxide gas with which the disinfection is carried out, and that the warm gas 6 is blown by one or more fans 1 through the evaporator (s) / evaporator surface (s) 5 to the object (s) to be cleaned. The pump 10 is a variable displacement pump or one or more flow control valves are connected to or after the pump 10 to control the flow rate of hydrogen peroxide through the atomizing member (s) 4.

The hydrogen peroxide piping may have one or more and the hydrogen peroxide piping may have one or more spray members 4, the spraying member 4 may have hole (s) in the hydrogen peroxide piping / hydrogen peroxide piping and / or the spray member 4 may have a spray nozzle / spray nozzles / hydrogenation nozzles Hydrogen peroxide (H 2 O 2) is sprayed from one or more tanks 9 by liquid pressure caused by one or more pumps 10 through one or more atomizing members 4 into one or more evaporation chambers 3, into which evaporation chamber 3 one or more fans 1 blow one or more heating elements 2 through a gas 6 which heats / heats hydrogen peroxide (H 2 O 2), from which the hydrogen peroxide mist 7 passes from the evaporation chamber 3 blown by the fan 1 to the evaporator 5, where the hydrogen peroxide (H 2 O 2) is converted into hydrogen peroxide gas 8 the gas 6 is blown by one or more fans 1 through the evaporator (s) / evaporation surface (s) 5 to the object (s) to be cleaned. N The concentration of hydrogen peroxide gas is 600 to 800 million particles per cubic meter, which 3 hydrogen peroxide is used for disinfection. 3 The disinfection device comprises one or more of a tank 9 one or more E pumps 10 for storing and transferring hydrogen peroxide (H 2 O 2) through one or more evaporators 4 to one or more evaporators 5. 3 S Pump 10 is a control volume pump or in connection with or after pump 10 is N 35 - one or more flow control valves are provided to control the flow rate of hydrogen peroxide through the spray member (s) 4.

There may be one or more hydrogen peroxide piping and the hydrogen peroxide piping may have one or more spray member (4), the spray member (4) may have hole (s) in the hydrogen peroxide piping (s) and / or the spray member (s) may have a spray nozzle (s). at work. The disinfection device comprises one or more pumps 9 for storing and transferring hydrogen peroxide (H 2 O 2) from the liquid pressure caused by the pump 10 to one or more evaporation chambers 4 to one or more evaporation chambers 3 to which one or more the fan (1) blows one or more heating / heating parts 2 through a gas 6, which gas 6 heats / heats hydrogen peroxide (H 2 O 2), from which the hydrogen peroxide mist 7 passes from the evaporation chamber 3 through the evaporator 5 where the hydrogen peroxide changes hydrogen peroxide gas with which the disinfection is carried out, and that the warm gas 6 is blown by one or more fans 1 through the evaporator (s) / evaporator surface (s) 5 to the object (s) to be cleaned. At the first end of the closed-wall evaporation chamber 3 there is a blower 10 and at the other end there is an evaporator 5. All the side walls of the evaporation chamber 3 - may have spray members 4 and their piping.

AN EXAMPLE OF THE USE OF THE INVENTION The cleaning of surfaces to be disinfected is performed by one or more disinfection devices of the invention. Prior to disinfection, the objects to be disinfected must be cleaned mechanically, using known techniques, if possible, e.g. food or other porous objects may be difficult to clean mechanically.

N 5 The disinfection device (s) are placed in an enclosed space, normal room height, such as a 2.5m container or room. Room temperature 25- 35 C degrees. There must be a good ventilation facility in the room, to which a fan and filter unit known from the ventilation of the buildings S will be connected. Several N air condition control devices are placed in the room to stabilize the humidity level, which are devices known for controlling the air conditions in the buildings. Laboratories in which the temperature, humidity and cleanliness of the air are controlled and closely monitored. The disinfector (s) are placed in the room.

The disinfection device (s) are started remotely by known technology. The disinfection process is automatic and lasts from one hour to one day, depending on the condition of the room, the duration of the process depends on the object to be cleaned. After disinfection, the room is ventilated to the outside air through known filters. The cleaned equipment / items are ready to be transferred for further action. The quality assurance documentation comes, for example, from the Technology Research Center VTT. A new feature of the invention is the wetting of the fibrous material, i.e. the evaporating member 5, by means of hydrogen peroxide to be sprayed by means of spray piping. The volume control valve regulates the amount in the piping, the piping is kept at a constant pressure, ie the spraying is constant. Dosing may be continuous or intermittent. The higher the concentration of one million particles in a cube, the faster the buttocks die. The fan blows heated air (air heating with microwaves, electric resistors, - laser heating) the air enters hydrogen peroxide gas to the object to be cleaned. Hydrogen peroxide from 30 to 59% (goes in a lower transport mode). 100% hydrogen peroxide can also be used. The disinfection device according to the invention can be produced by known methods from known materials, most preferably metals. It will be apparent to those skilled in the art that the exemplary embodiments set forth above are relatively simple in structure and operation for the sake of clarity of description. Following the model presented in this patent application, it is possible to produce various well-designed solutions which utilize the inventive idea presented in this patent application. The invention is not limited to the N alternatives presented above, but many modifications are possible within the scope of the inventive idea defined by the appended claims.

O 2 x a g 3

NN

Claims (8)

PATENT REQUIREMENTS A disinfection method to be used for cleaning, hydrogen peroxide (H 2 O 2) is sprayed from one or more containers (9) with liquid pressure created by one or more pumps (10), wherein hydrogen peroxide mist (7) is transported through one or more spray means (4) to one or more narrowing chambers (3), in which narrowing chamber (3) one or more fans (1) blow the gas (6), characterized in that the gas (6) is blown with one or more fans (1) to one or more evaporating means (5). ) through the evaporation surface (s) to the object / objects / space to be cleaned, where the hydrogen peroxide (H2 with microwaves or laser or infrared. A disinfection method according to claim 1, characterized in that the fibrous material in the evaporation surface / evaporation surfaces of the evaporator (5) is poured moist by means of the hydrogen peroxide mist (7) sprayed through the spray means (4), the pump (10) is a variable displacement pump, or a or several flow control valves have been placed in connection with or after the pump (10) with which the flow rate of hydrogen peroxide through the spraying means (s) (4) is regulated. A disinfection method according to claim 2, characterized in that the fan (1) blows the hydrogen peroxide mist (7) through the evaporation means (5), the evaporation means (5) on the evaporation surface (s) evaporating the hydrogen peroxide mist (7) to hydrogen surface oxide base gas in the evaporating surface / evaporating surfaces of the evaporating means (5), the hydrogen peroxide mist (7) gets stuck in the large contact surface of the evaporating surface / evaporating surfaces of the evaporating means (5), the outer dimension of the evaporating means (5) being small, the evaporating means (5) has a large , each fiber surface is part of the evaporation surface. A disinfection method according to claim 1, characterized in that the concentration of hydrogen peroxide gas is 600-800 million particles per cubic meter of hydrogen peroxide used for disinfection. A disinfectant device for cleaning, hydrogen peroxide (H 2 O 2) is sprayed from one or more containers (9) with liquid pressure created by one or more pumps (10), the hydrogen peroxide mist (7) being transported through one or more spray means (4) to one or more N evaporating chambers (3), in which narrowing chamber (3) one or more fans (1) blow gas (6) N through one or more heating / heating parts (2), which gas (6) heats / heats up Hydrogen peroxide (H 2 O 2), characterized in that the disinfection device comprises one or more K pumps (10) in one or more containers (9) for storing and transferring hydrogen peroxide (H 2 O 2) through one or more spray means (4) to one or more displacement chambers (3) and that the disinfection device E has one or more fans (1), one or more heating / heating parts (2) and that the gas (6) can be - blown with one or more fans (1) on the evaporation surface (s) of one or more several & evaporation means (5), the gas (6) has been heated by microwaves or laser or infrared. A disinfection device according to claim 5, characterized in that the evaporation surface (s) of the evaporator (5) is formed of fibrous material such as fabric fiber or fiberglass. A disinfection device according to claim 6, characterized in that there may be one or more hydrogen peroxide pipelines and that the hydrogen peroxide pipelines may have one or more spray means (4), the spray means (4) may be one or more holes in the hydrogen peroxide pipeline / hydrogen peroxide pipelines and / or ) may be a spray nozzle / spray nozzles in the hydrogen peroxide pipeline / hydrogen peroxide pipelines. A disinfection device according to claim 6, characterized in that the disinfection device comprises one or more pumps (10) in one or more containers (9) for storing and transferring hydrogen peroxide (H 2 O 2) with liquid pressure created by one or more pumps (10) through a or more spray means (4) to one or more narrowing chambers (3), in which narrowing chamber (3) one or more fans (1) blow gas (6) through one or more heating / heating parts (2), which gas (6) heats / heats the hydrogen peroxide (H202), from which the evaporating chamber (3) blows the fan (1) blows the hydrogen peroxide mist (7) through the evaporation means (5) evaporation surface / evaporation surfaces to the object / objects / space to be cleaned, in the evaporation glass (5) the hydrogen peroxide (H 2 O 2) to hydrogen peroxide gas (8). = O N o <Q N oO I jami a = N O O O N