CN115978693A

CN115978693A - Ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle

Info

Publication number: CN115978693A
Application number: CN202310153793.XA
Authority: CN
Inventors: 叶静; 田镇源
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-04-18

Abstract

A dual-purpose vehicle for ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection belongs to the field of medical equipment. One device is provided with two ultraviolet disinfection methods in the standard WS/T368-2012 Hospital purification management Specification, wherein ultraviolet lamps are used for direct irradiation disinfection and circulated air ultraviolet air disinfection. The ultraviolet sterilizer can be used for sterilizing and disinfecting an ultraviolet lamp direct irradiation device (an ultraviolet disinfection vehicle) and can also be used as a circulating air ultraviolet sterilizer for purifying and disinfecting indoor air under the unmanned and manned states. It features that the ultraviolet lamp, lamp box, control box and carriage are used together. Has the advantages of enhanced effect, convenient use, reduced cost, etc. The purification and disinfection functions are improved after the photocatalysis plate is additionally arranged.

Description

Ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle

Technical Field

The invention relates to ultraviolet purification and disinfection equipment, and belongs to the field of medical equipment.

Background

The standard WS/T368-2012 Hospital air purification management Specification (hereinafter referred to as WS/T368-2012) refers to two ultraviolet disinfection methods: the ultraviolet lamp directly irradiates for disinfection and the circulating wind ultraviolet air disinfection, and are respectively suitable for different working occasions. The two disinfection methods are mostly adopted by domestic medical units, nursing homes and the like.

For the ultraviolet lamp direct irradiation disinfection method, the standard "WS/T368-2012" clause 5.4.1 specifies: is suitable for indoor air disinfection in an unmanned state. "5.4.2 provisions: the ultraviolet lamp adopts suspension type or movable type direct irradiation. When mounted, an ultraviolet lamp (30W ultraviolet lamp, intensity at 1.0m is more than 70 μ W/cm) ² ) Should be more than or equal to 1.5W/m ³ Time of irradiation not less than 30min. "

The corresponding product of the mobile ultraviolet lamp direct irradiation disinfection in the market is generally called an ultraviolet disinfection vehicle, and the invention is called an ultraviolet lamp direct irradiation device according to the meaning of the standard WS/T368-2012.

Because ultraviolet ray can cause injury to eyes, skin and the like of a human body, people are not allowed to be present when the ultraviolet ray lamp is directly used for irradiating. However, in practical situations, such as the case of a person with mobility impairment in a ward or a person lying in bed after an operation, the use is very inconvenient.

To solve this problem, utility model CN202366213U discloses an "multifunctional ultraviolet germicidal lamp car", application date 2011.12.06. The technical scheme is that a fan is added on a universal ultraviolet disinfection vehicle. In case of no person in the sterilizing site, the box door is opened to expose the ultraviolet lamp directly to air for sterilizing. When someone is in the room, the box door is closed, the ultraviolet lamp is lightened, the fan is started, indoor air is sucked in, flows through the lamp box where the ultraviolet lamp is located, is irradiated and sterilized, and is exhausted from the air outlet of the lamp box.

The main problems of this solution are: there is no filter system provided as in the circulating air uv disinfector mentioned in the standard WS/T368-2012. As a result, dust and dirt may be deposited on the surface of the ultraviolet lamp when the ultraviolet lamp is used for a long time. The ultraviolet ray has poor penetrability, so that the sterilization and disinfection effects are greatly reduced.

Page 13 of the book "best practice for air purification 36368in medical institutions": the literature and research suggest that ultraviolet disinfection is not suggested as a single technology for air purification in hospitals, but can be used in combination with air filtration technology and the like to play a good role. "page 136: the air filter can effectively reduce the interference of dust on ultraviolet rays, and can also remove larger microorganism particles which are insensitive to ultraviolet radiation, such as fungal spores and the like, so that bacteria and viruses which are susceptible to the ultraviolet radiation can be inactivated by receiving more radiation doses.

Therefore, since the publication of 2012.08.08, the utility model has been published for 10 years, and no product conforming to the utility model is known.

The second disinfection method mentioned in the standard WS/T368-2012 is circulated air uv air disinfection. Article 5.5.1 specifies: is suitable for indoor air disinfection under the condition of people. "clause 5.5.2: the sterilizer consists of a high-intensity ultraviolet lamp and a filtering system, and can effectively kill microorganisms in air entering the sterilizer and effectively filter dust particles in the air. The apparatus of this method is known as the ultraviolet air sterilizer "in GB28235-2011 ultraviolet air sterilizer safety and sanitation Standard". Article 3.2 specifies that: the ultraviolet air sterilizer is a device which achieves the purpose of sterilization by utilizing a sterilization instrument formed by combining an ultraviolet germicidal lamp, a filter and a fan. Therefore, the invention is called as a circulating air ultraviolet sterilizer.

Its advantage can use under someone state, not only disinfect, disinfect but also air-purifying, but the shortcoming is also not few:

1. closing the door and window during disinfection;

2. the disinfection time is long;

3. the location where the equipment is placed and the indoor layout can affect the purification effect. If a plurality of bed positions are frequently arranged in a ward, bacteria and viruses can be hidden in the positions of beds, quilts, curtains, cabinets, corners and the like, and are blocked, so that the bacteria and viruses are difficult to be inhaled into equipment for disinfection, and moreover, the equipment is difficult to move to be disinfected due to the presence of people and the bed and cabinet;

4. the filter screen needs to be replaced and cleaned frequently;

thus, the effect is significantly less than direct irradiation with ultraviolet light when local disinfection is performed. For example, after a patient is discharged or dies, the bed and the adjacent environment are sterilized, preferably by direct irradiation with ultraviolet light, and then by circulating air ultraviolet sterilization and purification.

The two disinfection methods and the advantages and the disadvantages of the two disinfection methods are complementary, so that the two disinfection devices are usually arranged and used in medical institutions, the purchase cost is increased, the maintenance is increased, and the placement field is also increased. Especially, two devices are used in use, and the carrying and the operation are time-consuming and labor-consuming.

Disclosure of Invention

Under the practical disinfection condition, the invention provides an ultraviolet purification and disinfection dual-purpose vehicle which can be used as an ultraviolet lamp direct irradiation device and a circulating air ultraviolet sterilizer, and is suitable for purification, sterilization and disinfection under different occasions without people or with people.

The simple method is to install the ultraviolet lamp direct irradiation device and the circulating wind ultraviolet sterilizer together on a small moving car, but the method is not significant, and the method has little benefit except that the two devices can move together.

The invention adopts the technical scheme that the two devices share the ultraviolet lamp.

Therefore, the structures of the two devices are combined, and a circulating air system is specially designed to adapt to the following conditions:

1. the whole height of the ultraviolet lamp direct irradiation device is much higher than that of the circulating air ultraviolet sterilizer. The reason is that in order to enlarge the irradiation area and adapt to the disinfection environment, the light-emitting length of the ultraviolet lamp is longer, generally 1 meter, and the irradiation height is higher, and can be adjusted according to the use condition;

2. the whole width of the circulating air ultraviolet sterilizer is much wider than that of the ultraviolet lamp direct irradiation device. The diameter of the fan can not be reduced in order to achieve certain wind pressure and wind quantity, the width of the ultraviolet lamp direct irradiation device basically depends on the width of the lamp box, and only the lower ultraviolet lamp needs to be accommodated;

3. when the ultraviolet lamp is used as a direct irradiation device of the ultraviolet lamp, the ultraviolet lamp needs to be pulled out of the lamp box;

4. the filter screen can be conveniently replaced and cleaned.

After the technical scheme is adopted, the purposes can be achieved, the whole size of the two-purpose vehicle can be reduced, the weight is reduced, the control mechanism is simplified, the use is convenient, the cost is reduced, and the like.

Furthermore, in the above technical scheme, an active carbon filter screen, a HEPA filter, a photocatalyst filter screen and the like can be additionally arranged. In fact, there are many circulating air ultraviolet disinfector products and patents with added photocatalyst filtering net and other measures. For example, patent CN110454891A discloses a medical air disinfection purifier, whose application date is 2019.09.06. The ultraviolet LED light source device comprises a shell, a coarse and medium-efficiency filter screen, a fan, an ultraviolet LED light source, a photocatalytic filter layer, a HEPA filter screen and a negative oxygen ion material layer.

The photocatalytic filter layer is also called a photocatalytic plate, a photocatalytic plate and a photocatalytic filter net in related products and other related data.

The photocatalyst can generate a photocatalytic reaction under the irradiation of ultraviolet rays to generate free hydroxyl and active oxygen with extremely strong oxidizing capability, has a very strong photoredox function, can oxidize and decompose various organic compounds (such as formaldehyde and benzene) and partial inorganic substances, can destroy cell membranes of bacteria and proteins of solidified viruses, can kill bacteria and decompose organic pollutants, and decomposes the organic pollutants into pollution-free water, carbon dioxide and other harmless substances, thereby having extremely strong functions of sterilization, deodorization, mildew prevention and air purification.

The photocatalyst is nanometer titanium dioxide.

Drawings

FIG. 1 is a front view of the ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection two-purpose vehicle (the light box door is omitted and not shown)

FIG. 2 isbase:Sub>A schematic sectional view A-A of FIG. 1 (the two-dot chain line indicates the case where the door of the lamp box is opened and the arm is pulled out of the lamp box and to the top two stations)

FIG. 3 is an enlarged view of part I of FIG. 2

FIG. 4 is a partial enlarged view of II in FIG. 2

FIG. 5 is a schematic view of an air guiding visor

FIG. 6 is an enlarged cross-sectional view of B-B in FIG. 2

FIG. 7 is a partial enlarged view of III in FIG. 2

FIG. 8 is a schematic side view of the present invention ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection dual-purpose automobile add-on photo-catalyst board

FIG. 9 is a schematic sectional view of C-C in FIG. 8 (straight photocatalytic plate is inclined)

FIG. 10 is a schematic sectional view of C-C in FIG. 8 (the photocatalytic sheet is in a zigzag shape)

FIG. 11 is a schematic side view of the ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection dual-purpose vehicle with an added photocatalytic plate (single fan)

FIG. 12 is a schematic sectional view taken along line D-D in FIG. 11

The designations in the above figures illustrate:

letters following the numbers in the reference numerals indicate differences in size and shape of parts of the same name

1-circulating air component, 11-air box body, 111-air inlet, 112-air guide chamber, 12-air box door, 13-common filter screen, 131-coarse filter screen, 1311-buckle, 132-fine filter screen, 14-active carbon filter screen, 15-lining board, 151-seat hole, 16-air fan, 17-air guide shading plate, 18-air quality sensor and 19-side air guide plate; 2-ultraviolet lamp, 3-ultraviolet lamp direct irradiation auxiliary component, 31-lamp box body, 311-air outlet, 32-lamp box door, 321-seal, 33-lamp arm, 331-ratchet device, 4-control box, 5-trolley component, 17 b-air guide shutter, 3 b-ultraviolet lamp direct irradiation auxiliary component, 31 b-lamp box body, 311 b-air outlet, 32 b-lamp box door, 34-lamp box cover, 35-photocatalytic plate, 35 b-photocatalytic plate, 1 b-circulating air component, 11 b-air box body, 111 b-air inlet, 112 b-air guide chamber, 12 b-air box door, 131 b-coarse filter screen, 132 b-fine filter screen, 14 b-activated carbon layer filter screen, 15 b-lining plate, 17 c-air guide shutter, 3 c-ultraviolet direct irradiation auxiliary component, 31 c-lamp box body, 311 c-air outlet, 4 b-control box, 5 b-trolley component, 35 c-photocatalytic plate

Detailed Description

As shown in fig. 2, with reference to fig. 1, the present invention discloses a dual-purpose vehicle for ultraviolet radiation by ultraviolet lamp and ultraviolet purification and disinfection by circulating air, which comprises a circulating air component 1, an ultraviolet lamp 2, an auxiliary component 3 for ultraviolet lamp direct radiation, a control box 4 and a trolley component 5.

The circulating air component 1 is provided with an air box body 11, an air box door 12, a common filter screen 13, an active carbon filter screen 14, a lining plate 15, a fan 16, an air guide light screen 17, an air quality sensor 18 and a side air guide plate 19.

The bellows body 11 and the bellows door 12 constitute a bellows, and are made of metal plates or engineering plastics.

The wind box 11 has wind inlets 111 on two sides near the wind box door 12, and the wind inlets 111 are made into louvers, but other forms are also possible. The air inlet can also be arranged on the air box door 12. Only in this way, the inlet air can be distributed uniformly on the common filter screen 13 and the activated carbon filter screen 14. Otherwise, if air enters from the bottom of the air box body 11, the air inlet area is small, the air duct is long, and the air pressure borne by the common filter screen 13 and the activated carbon filter screen 14 is uneven, so that the treatment efficiency is influenced, and the noise is increased.

In the wind box body 11, a common filter screen 13, an active carbon filter screen 14, a lining board 15 and a fan 16 are arranged in sequence from one side of a fan door 12.

The common filter screen 13 is used for filtering dust, smoke dust, harmful particles, larger particle microorganisms and the like. Generally, the filter screen is divided into a coarse filter screen and a fine filter screen which are respectively made of different filter materials and are responsible for improving the filtering efficiency. After a certain time of use, the coarse filter screen 131 needs to be cleaned and reused, and the fine filter screen 132 is used as a consumable and needs to be replaced.

The activated carbon filter screen 14 has adsorption capacity for toxic and harmful gases such as benzene, formaldehyde, ammonia gas and the like, and can effectively remove odor such as gaseous pollutants, excrement odor and the like in the air. During manufacturing, the activated carbon filter screen 14 can be combined with the common filter screen 13. If the equipment is mainly used for dust removal, sterilization and disinfection, or components capable of removing gaseous harmful substances in air such as photocatalysis and the like are added, the activated carbon filter screen 14 is not used.

Other purification devices such as aldehyde eliminating net can be arranged at the position of the active carbon filter screen 14.

The general filter net 13 and the activated carbon filter net 14 need to be cleaned or replaced after a period of use, which is performed through the damper door 12.

The lining plate 15 is fixed on the inner wall of the air box body 11, is used for facilitating the fixing, the assembling and the disassembling of the common filter screen 13 and the active carbon filter screen 14, and is made of plastics. When the bellows is made of engineering plastics, the liner 15 can be made into a whole with the bellows body 11.

As shown in fig. 4, the lining plate 15 of the bottom of the bellows body 11 is provided with a socket hole, and the lower part of the coarse filter 131 is provided with a plug plate. The plug board can be inserted into the socket hole. The cross sections of the inserting plates and the socket holes are rectangular or circular, and the number of the inserting plates and the number of the socket holes are two.

As shown in FIG. 3, the liner 15 on the top of the wind box 11 has a seat hole 151, and the upper part of the coarse filter 131 has a buckle 1311, which is also two in number.

When the device is installed, the activated carbon filter screen 14 and the fine filter screen 132 are sequentially placed in the air box body 11; the coarse filter screen 131 is obliquely placed in the air inlet box body 11, the plug board at the lower part of the coarse filter screen is inserted into the socket hole on the lower lining plate 15, the buckle 1311 at the upper part of the coarse filter screen is pushed into the socket hole 151 on the upper lining plate 15, and the common filter screen 13 and the active carbon filter screen 14 are fixed in place by utilizing the elasticity of the buckle.

When cleaning and replacing, the end part of the buckle 1311 is pressed downwards, and pulled towards the direction of the box door 12, so that the buckle 1311 is separated from the seat hole 151, then the coarse filter screen 131 is lifted, the upper plug board is lifted out of the seat hole on the lining board 15, and the common filter screen 13 and the active carbon filter screen 14 can be smoothly unloaded.

The buckle structure is changeable and multiterminal, not to list one by one. In addition, a bolt can be used for fixing. The types of the plugs (37559) are various, and some plugs are provided with springs for convenient assembly and disassembly. For example, in CN211650572U, "a cabinet type air purifier purifying and disinfecting structure", filed 2019.12.29, a detachably connected clamping assembly is introduced, and a photocatalytic module and an ultraviolet light source module are fixed on two side walls of a cabinet body by using a bolt with a spring.

When the present invention uses the latch mechanism to fix the coarse strainer 131, the latch may be disposed on the coarse strainer 131, and the latch seat hole may be disposed at a position opposite to the lining plate 15. During installation, the latch on the coarse strainer 131 is inserted into the latch hole on the lining plate 15, so that the coarse strainer 131 can be firmly fixed on the lining plate 15.

In addition, a plug board may be provided at one end of the coarse strainer 131 and a plug board may be provided at the other end thereof for fixation at 37559.

As shown in figure 2, the fan 16 is low-noise, and the circulating air volume must meet the regulation of the No. 6.2.6 of GB28235-2011 ultraviolet air sterilizer safety and sanitation Standard: "the circulating air volume when leaving factory should not be less than 10 times of the applicable volume. "when the applicable volume is 56 cubic meters calculated by the height of a room being 2.8 meters and the area being 20 square meters, the circulating air volume is 600 cubic meters per hour. The external dimension of the fan meeting the conditions is 300-340 mm in length and width. The width of the bellows body 11 is greater than 350 mm. The width of the lamp box 31 of the auxiliary member 3 directly irradiated by the ultraviolet lamp is less than 200 mm. The two air ducts have too large difference in the external dimensions and different shapes of the ventilation areas. When the wind output by the fan 16 flows from the wind box body 11 to the lamp box body 31 and is directly irradiated by the ultraviolet lamp 2 in the lamp box wind channel formed by the lamp box body 31 and the lamp box door 32 for sterilization and disinfection, if the section of the wind channel changes too suddenly, the efficiency is reduced, and vibration and noise are caused. Measures must be taken.

A large space is left in front of the fan 16 as an air guiding chamber 112, in which sound absorbing and silencing parts can be arranged.

As shown in fig. 5, the lower part of the wind guide shading plate 17 is provided with a wind guide opening, the opening height is out of the light-emitting range of the ultraviolet lamp, and a louver window is arranged on the wind guide shading plate for guiding wind. The reason for this arrangement is to prevent ultraviolet rays from irradiating the activated carbon filter mesh 14 and the fine filter mesh 132, which causes damage to the fibers in the interior, and reduces the service life. If the influence is not considered, the louver window is not needed, and the air guide opening is only required to be opened high. The louver window can also be replaced by a method that a light barrier blocks a through hole on the wind guide light shielding plate and the like.

Fig. 6 illustrates the circulation air channel in the section B-B of fig. 2, in which two side wind deflectors 19 smoothly guide the circulation air blown by the fan 16 to the lower part of the lamp housing 31. A

In order to meet the requirement of low noise of the equipment in medical environment, besides the low noise of the fan 16, a vibration isolation measure is adopted between the fan 16 and the wind box body 11, namely, an elastomer such as rubber is padded at the joint of the fan 16 and the wind box body 11.

In addition, the wind guide light shielding plate 17 and the side wind guide plate 19 are made of thin plates, and the circulating wind is blown by the straight-face fan 16. To reduce the noise radiation caused by the bending vibrations of the sheet, a coating of damping material should be applied thereon. The coating thickness is at least as thick as the air deflection plates. The film forming material of damping paint, i.e. base material, usually adopts chloroprene rubber or olefine acid ester, etc., and the filler added in the base material generally includes fibre, expanded perlite powder and calcium carbonate, etc.

The formed damping material can also be adhered to the air deflector.

Sound absorbing materials such as fine-pore foamed plastics, industrial felts, slag wool and the like can also be laid in the circulating air channel. Especially, the gap between the fan 16 and the wind box body 11 is filled up to reduce vibration and absorb sound.

Two or more fans may also be employed. The use of multiple fans has the following advantages over one fan:

1. the width and thickness (but the height) of the circulating air part 1 can be reduced, and the circulating air part is matched with the ultraviolet lamp direct irradiation auxiliary part 3, so that the volume and the weight of the device are reduced, the manufacturing cost is reduced, and the device is more convenient to move and use.

2. The section change of the air duct is small, and energy is saved and noise is reduced.

3. For different use conditions, one or more fans can be used respectively to control the circulating air quantity and adapt to different working conditions.

The apparatus shown in figures 1 to 10 employs two fans 16, although more than two fans may be used. The apparatus shown in fig. 11 and 12 employs one fan, and basically the same as the two fans except that only one fan is used and the external dimensions and structure thereof are different.

The device adopting one fan is also applied, for example, the circulating air quantity of the device is smaller, or the device is added with a photocatalysis plate to increase the width of the lamp box as shown in fig. 11 and fig. 12. Compared with two fans, the fan can save manufacturing cost at least.

As shown in fig. 2 and 1, the ultraviolet lamp 2 is mounted on the lamp arm 33. The number is 1 or more, and 2 are shown. The ultraviolet wavelength is 250-280 nm, and the sterilization effect is strongest at the moment. GB28235-2011 ultraviolet air sterilizer safety and health Standard stipulates that the central wavelength of ultraviolet is 253.7nm.

Most of the current lamps are low-pressure mercury vapor discharge ultraviolet germicidal lamps. With the development of science and technology, ultraviolet LED lamps have gained more and more attention and use. Generally, a module (or module) is adopted, i.e., a plurality of LEDs are arranged in columns of 38499 and are mounted on a circuit board, and the radiation dose is required to reach a specified level. It can be designed and manufactured into the form of a common fluorescent lamp, and the interface has the same external dimension as the steam discharge ultraviolet sterilization lamp, so that the use is convenient.

As shown in fig. 2, the ultraviolet lamp direct irradiation auxiliary member 3 includes a lamp housing body 31, a lamp housing door 32, and a lamp arm 33. The lamp box body 31 and the lamp box door 32 constitute a lamp box, which is also a passage for circulating air.

As shown in fig. 7, a seal 321 is provided around the light box door 32, and is made of a rubber or plastic material, and is embedded in the groove of the light box door 32, or a sealing strip similar to that on the door of a household refrigerator can be used. When the apparatus is used as a circulating wind ultraviolet sterilizer, the seal 321 serves to prevent circulating wind from being blown out from a gap between the door 32 of the lamp box and the lamp box body 31, which may reduce the purifying and sterilizing effects and raise dust around the lamp box.

The upper portion of the lamp housing 31 is provided with an air outlet 311.

The lamp housing 31 is provided with a lamp arm 33 therein, and the ultraviolet lamp 2 is provided on the lamp arm 33. The upper part of the lamp arm 33 is provided with a ratchet device 331.

The air quality sensor 18 is installed above the inside of the lamp housing 31 near the air outlet 311.

In general, an infrared light emitting diode and a phototransistor are installed diagonally inside the air quality sensor to detect the reflected light of dust, and can measure fine particles having a diameter of 0.8 μm or more, such as pollen, dust, etc.

The control box 4 is arranged above the circulating air part 1, and the trolley part 5 is arranged below the circulating air part. The circulating air member 1 and the ultraviolet lamp direct irradiation auxiliary member 3 are assembled together on the carriage member 5.

The control box 4 is provided inside with control devices for the ultraviolet lamp 2, the fan 16, the air quality sensor 18, and the like, and an overcurrent releaser, and the like. The upper part of the box is provided with a control panel, and a power switch, a control button and a display screen are arranged on the control panel.

The four corners of the bottom of the trolley part 5 are provided with silent universal wheels, so that people can conveniently move the equipment to a disinfection place.

The circulated air ultraviolet sterilizer comprises: the circulating air part 1, the ultraviolet lamp 2, the lamp box body 31, the lamp box door 32, the control box 4 and the trolley part 5.

When the circulating air ultraviolet sterilizer works, indoor air is sucked by the fan 16 and enters from the air inlet 111, large particulate matters such as dust are filtered after passing through the coarse filter screen 131, small particulate matters such as PM2.5 are filtered after passing through the fine filter screen 132, and peculiar smells such as gaseous pollutants and stink are adsorbed by the active carbon filter screen 14. Then flows into a lamp box air duct formed by a lamp box body 31 and a lamp box door 32 through the air guide chamber 112 and the air guide shading plate 17, and is irradiated by an ultraviolet lamp at a short distance for sterilization and disinfection. Most of the purified and disinfected air is discharged into the room through the air outlet 311, and a small part of the purified and disinfected air escapes from the rotating opening of the lamp arm 33 on the top of the lamp box. The indoor air is circulated, purified and disinfected.

The control system in the control box 4 can adjust the operating conditions of the fan 16 to achieve optimum results based on the quality of the purified air detected by the air quality sensor 18.

The ultraviolet lamp direct irradiation apparatus includes: ultraviolet lamps 2 and ultraviolet lamps directly irradiate the auxiliary components 3, the control box 4 and the car components 5.

When the ultraviolet lamp direct irradiating apparatus is operated, the lamp box door 32 is opened and the lamp arm 33 is drawn out to a desired height, as shown by the imaginary line in fig. 2. The ratchet device 331 is automatically fixed. After a delay time, the ultraviolet lamp 2 on the lamp arm 33 is automatically turned on by turning on the switch on the control box 4, and is directly exposed to the air for sterilization. At this time, the fan 16 is in a stopped state.

The above-mentioned circulating air ultraviolet sterilizer and the ultraviolet lamp direct irradiating apparatus share the ultraviolet lamp 2, and this sharing is not simultaneous. The control box 4 and the trolley part 5 are also shared. In addition, the former also uses the latter lamp box body 31, lamp box door 32 and lamp arm 33.

On the basis of the ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection two-purpose vehicle shown in the above fig. 1 and 2, the ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection two-purpose vehicle is formed by adding the photocatalytic plate, as shown in fig. 8 and 9.

Wherein the circulating wind part 1, the ultraviolet lamp 2, the control box 4 and the trolley part 5 are basically the same as the above, and the added photocatalysis plates 35 are arranged at both sides of the lamp box body 31 b. But may of course be arranged in the light box behind the uv lamp 2, i.e. on the side close to the fan 16. The lamp housing body 31b and the lamp housing door 32b are relatively wider than the aforementioned lamp housing body 31 and lamp housing door 32. Above them, a light box cover 34 is provided, which has the function of preventing purified air from escaping directly from above without flowing through the photocatalytic plate 35. The lightbox cover 34 may be made of engineering plastic, although other materials may be used. But it should fit on top of the light box where a seal can be used so that air cannot escape from the gap. When the device is used as a direct irradiation device of the ultraviolet lamp, the lamp box cover is required to be taken away so that the ultraviolet lamp 2 can be pulled out of the lamp box, and the device is covered in the rest time. The air outlet 311b is provided above both sides of the lamp housing 31 b.

The photocatalytic plate 35 is composed of a porous ceramic plate loaded with a photocatalytic active component, or is composed of two layers of wire mesh filled with porous particles loaded with a photocatalytic active component, or is composed of titanium dioxide particles adhered to a conventional air filter. They are fixed to a metal frame, and the frame is assembled to the lamp housing 31 b.

The photocatalytic plate 35 is slightly inclined, and is mainly used for increasing the air passing area, reducing the wind resistance and increasing the contact between gas and a catalyst. Of course, the inclination angle is better, but limited by space, and can only be limited as appropriate.

Further, the photocatalytic sheet is formed in a folded shape, as shown by 35b in FIG. 10, or in a waved shape. The purpose is not only to increase the air passing area and increase the contact between the gas and the catalyst, but also to form turbulent flow on the surface of the folded plate or the corrugated plate by the airflow, thereby strengthening the contact between the gas and the catalyst and improving the purification effect.

The photocatalytic sheet may also be formed into a convex curved surface as shown at 35c in fig. 12.

Further improving the purifying effect, and coating a nano iron oxide coating on the light receiving surfaces of the lamp box body 31b, the lamp box door 32b and the wind guide light shielding plate 17 b.

Similarly, in the ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle shown in fig. 1 and 2, a certain purification and sterilization effect can be obtained by coating the nano oxygen iron coating on the light receiving surfaces of the lamp box body 31, the lamp box door 32 and the air guide light shielding plate 17.

The effect of the nano iron oxide is better by changing the nano titanium dioxide. The nano iron oxide and the nano titanium dioxide paint are photocatalyst paint.

As shown in fig. 8, 9 and 10, when the circulating air ultraviolet photocatalytic purification sterilizer of the present invention works, the indoor air is sucked by the fan 16, enters from the air inlet 111, passes through the coarse filter 131, the fine filter 132, the activated carbon filter 14, the air guide chamber 112 and the air guide shade 17b, and flows into the lamp box air duct formed by the lamp box body 31b and the lamp box door 32b of the ultraviolet lamp direct irradiation auxiliary component 3 b. Here, the ultraviolet lamp 2 is irradiated at a short distance to sterilize. Then, the air flow is blocked by the lamp box cover 34, and only passes through the photocatalytic plate 35 irradiated by the ultraviolet lamp 2, wherein harmful substances are catalytically oxidized, microorganisms are killed, and the purified and sterilized air is discharged from the air outlet 311 b. The quality of the air purification is controlled by the control system in the control box 4 according to the conditions detected by the air quality sensor 18.

As shown in fig. 8, 9 and 10, when the ultraviolet lamp direct irradiation device works, the process conditions are the same as before, and are not repeated.

As shown in fig. 11 and 12, the ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle adopting one fan and added with a photocatalytic plate of the invention comprises a circulating air part 1b, an ultraviolet lamp 2, an ultraviolet lamp direct irradiation auxiliary part 3c, a control box 4b and a trolley part 5b. The circulating air component 1b mainly comprises an air box body 11b, an air box door 12b, a coarse filter screen i3ib, a fine filter screen 132b, an active carbon filter screen 14b, a lining plate 15b, a fan 16, an air guide light shielding plate 17c and an air quality sensor 18.

When the circulating air ultraviolet photocatalytic purification sterilizer of a fan works, indoor air enters from an air inlet 111b on an air box body 11b under the action of the fan 16, passes through a coarse filter screen 131b, a fine filter screen 132b, an active carbon filter screen 14b, an air guide chamber 112b and an air guide light shielding plate 17c, and flows into a lamp box air channel consisting of a lamp box body 31c and a lamp box door 32b of an ultraviolet lamp direct irradiation auxiliary component 3 c. Here, the ultraviolet lamp 2 is irradiated at a short distance to sterilize. Then, the air flow is blocked by the lamp housing cover 34, and only passes through the photocatalytic plate 35c irradiated by the ultraviolet lamp 2, in which harmful substances are catalytically oxidized and microorganisms are killed. The purified and sterilized air is discharged from the air outlet 311 e. The quality of air purification is adjusted and controlled by the control system in the control box 4b according to the signal detected by the air quality sensor 18.

When the ultraviolet lamp of one fan directly irradiates the device to work, the process working condition is the same as before, and the process working condition is not repeated.

The invention has various external dimensions, and in addition to the above, the invention also has a cabinet shape and the like. When the appearance is cabinet-shaped, the width of the lamp box is the same as that of the air box or the lamp box is embedded into the cabinet body, and the bottom of the cabinet body is provided with universal wheels. But the internal arrangement is basically the same, and the ultraviolet lamp direct irradiation device and the circulating wind ultraviolet purification sterilizer share the same ultraviolet lamp.

Claims

1. A dual-purpose vehicle for ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection comprises an ultraviolet lamp direct irradiation device and a circulating wind ultraviolet sterilizer;

the ultraviolet lamp direct irradiation device comprises an ultraviolet lamp direct irradiation auxiliary component, an ultraviolet lamp, a control box and a trolley component;

the circulating air ultraviolet sterilizer comprises a circulating air part, an ultraviolet lamp, a lamp box, a control box and a trolley part;

the ultraviolet lamp directly irradiates the auxiliary component and comprises a lamp box and a lamp arm;

the circulating air part comprises an air box, a filter screen and two or more fans;

the method is characterized in that: the ultraviolet lamp direct irradiation device and the circulating UV toxin focal point share the same ultraviolet lamp.

2. A dual-purpose vehicle for ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection comprises an ultraviolet lamp direct irradiation device and a circulating wind ultraviolet sterilizer;

the circulating air part comprises an air box, a filter screen and a fan;

the method is characterized in that: the circulating wind UV curot toxin device and the UV lamp direct irradiation device share the same UV lamp, and the door of the lamp box is sealed.

3. The ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle as claimed in claim 1 or 2, wherein: the circulating air inlets are arranged on two sides of the air box or the air box door, the air outlets are arranged on the upper portion of the light box, and air deflectors are arranged on an air flow channel between the air inlets and the air outlets.

4. The air deflection of claim 3, wherein: the air deflector is provided with a damping material.

5. The ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle as claimed in claim 1, wherein: the lamp box door of the lamp box is provided with a seal made of rubber plastic.

6. The ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle as claimed in claim 1 or 2, wherein: a lining plate is arranged in the air box, and a seat hole is formed in the lining plate.

7. The utility model provides an ultraviolet lamp direct irradiation and circulated air ultraviolet purification and disinfection dual-purpose vehicle that has increased photocatalysis board which characterized in that: the photocatalytic plate is disposed in the lamp housing of the ultraviolet lamp direct irradiation apparatus as set forth in claim 1 or 2.

8. The ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection dual-purpose vehicle added with the photocatalytic plate as claimed in claim 7, wherein: the photocatalysis board is a folded surface curved surface and is obliquely arranged in the lamp box.

9. The ultraviolet lamp direct irradiation and circulating wind ultraviolet purification and disinfection dual-purpose vehicle added with the photocatalytic plate as claimed in claim 7, wherein: and a lamp box cover is arranged at the top of the lamp box.

10. The ultraviolet lamp direct irradiation and circulating air ultraviolet purification and disinfection dual-purpose vehicle as claimed in claim 1 or 2, wherein: the light receiving surfaces of the light box and the air deflector are coated with photocatalyst paint.