CN1843513A - Wall-mounted air disinfection device for respiratory infection ward - Google Patents

Abstract

The invention relates to a wall hanging air decontaminating apparatus for avoiding respiratory infections. The air inlet on shell is equipped with air inlet blinds; the upper part of shell is equipped with air outlet pipe; the left inner side of shell is equipped with adjustable speed motor, drive shaft connected with adjustable speed motor through belt; the antiseptic solution room in the right inner side of shell is equipped with antiseptic solution, guide shaft, and driven shaft; the drive shaft, driven shaft and guide shaft are equipped with sterilizing belt; the right side of shell is equipped with solution injecting valve and water-level gage; lower part of right side is equipped with solution discharge valve; inner right side is equipped with power for ultraviolet lamp; air inlet blinds is equipped with photocatalysis net and quartz electrothermal tube; said photocatalysis net is equipped with ultraviolet lamp; an air outlet photocatalysis net is equipped in shell; air outlet is equipped with active char filtering blanket and axial fan; a control board is installed on shell. The invention is characterized by rational design, simple structure, fast sterilizing speed, high efficiency and thorough sterilization. It is can be used for sterilization of ward and operating room and discharging of toxic gas in laboratory.

Description

Wall-mounted air disinfection device for respiratory infection ward

technical field

The invention belongs to the technical field of medical equipment, and in particular relates to a wall-mounted air disinfection device for a respiratory infection ward.

Background technique

Air disinfection and purification in respiratory infection wards has always been the top priority of hospital disinfection. Its purpose is to prevent virus infection and spread among patients, between patients and medical care and accompanying staff, and between respiratory wards and the outside world. At present, the air disinfection and purification of wards mainly adopts ozone disinfection, ultraviolet disinfection, ultrasonic atomization of various disinfectants 12 disinfection and various independently operated air disinfection and purification machines. The previous disinfection instruments can achieve a certain effect, but the person must leave the ward or the patient must be strictly protected during disinfection, and the disinfection is often carried out only when the polluted air has accumulated to a certain extent. Obviously, strictly speaking, this is a "remedial measure". It does not solve the cross-infection of highly pathogenic viruses. However, although the air disinfection and purification machine that operates independently can be used for man-machine coexistence and simultaneous disinfection, the disinfection and purification machine is often fixed at a certain position in the room, and its working characteristic is to circulate disinfection and purification of air in a limited space. The dead corner where the air in the local space cannot be disinfected, that is, the problem of cross-infection cannot be solved in the ward where many people live together. Obviously, in order to fundamentally solve the problem of the spread and infection of highly pathogenic viruses and bacteria, the gas exhaled by each patient must be limited to a local area, and then be sucked away, and then discharged to the outside after strict disinfection and purification, in order to ensure There is no cross-infection in the ward, and the virus does not spread to the outside to cause secondary pollution. According to retrieval, existing air disinfection and purification equipment and patents cannot solve this problem well.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of air disinfection and purification equipment for respiratory infection wards, and provide a wall-mounted air disinfection device for respiratory infection wards with reasonable design, simple structure, fast disinfection and purification speed, high efficiency, and thorough disinfection.

The technical solution adopted to solve the above technical problems is: an air inlet louver is provided at the lower air inlet of the casing, an air outlet pipe is arranged at the upper part, a speed regulating motor is arranged on the left side of the casing, and the speed regulating motor is connected through a belt. The lower part on the right side of the housing is a disinfectant solution chamber, the disinfectant solution chamber is equipped with a disinfectant solution, and a guide shaft and a driven shaft immersed in the disinfectant solution are arranged in the disinfectant solution room. The drive shaft, the driven shaft and the guide shaft A disinfection tape is installed on the top, a liquid injection valve and a liquid level gauge are installed on the right side of the housing, a liquid discharge valve is installed on the lower right side, an ultraviolet lamp power supply is installed on the upper right side of the housing, and a The photocatalytic net of the air inlet surrounded by the disinfection belt on the periphery, the quartz electric heating tube is arranged under the photocatalytic net of the air inlet, the ultraviolet lamp connected with the power supply of the ultraviolet lamp through the wire is arranged above and below the photocatalytic net of the air inlet, and the upper part of the shell is provided with The photocatalytic net at the air outlet is equipped with an activated carbon filter felt under the air outlet pipe, an axial flow fan is arranged on the activated carbon filter felt in the air outlet pipe, and a power switch and a control button connected to the electrical components through wires are installed on the housing. control Panel.

The photocatalytic net of the air inlet and the photocatalytic net of the air outlet of the present invention are 50-60 mesh stainless steel nets with nano _TiO2 on the surface or nickel foam with nano _TiO2 on the surface with a porosity greater than or equal to 95%. The disinfectant of the present invention is a hydrogen peroxide aqueous solution with a concentration of 2-4%. The disinfection belt of the present invention is provided with textiles outside the filter felt.

The photocatalytic net of the air inlet of the present invention has a wave shape.

The included angle between one curved surface and an adjacent curved surface of the wave-shaped air inlet photocatalytic net of the present invention is 30°-150°.

The thickness of the nano TiO ₂ foamed nickel on the surface of the photocatalytic net of the air inlet and the photocatalytic net of the air outlet of the invention is 5-10mm. The filter felt of the present invention is a needle punched filter felt. The textile fabric of the present invention is a nonwoven fabric.

The thickness of the disinfection tape of the present invention is 3-5mm.

The activated carbon filter felt of the present invention has a thickness of 3-6 mm.

The ultraviolet light emitted by the ultraviolet lamp of the present invention has a wavelength of 254nm.

The air inlet louver of the present invention is as follows: the angle of the air inlet louver is symmetrical to the center line of the air inlet and parallel to the two inner surfaces of the casing.

The outer shape of the casing of the present invention is herringbone.

The present invention adopts a "herringbone"-shaped whole machine structure and a one-way suction air disinfection and purification mode, which ensures the formation of an air flow field from bottom to top and from outside to inside at the lower part of the purification device, so that the gas exhaled by the patient is in such a The air in the flow field is directly sucked by the purification device, which prevents the virus and germs exhaled by the patient from spreading to others. At the same time, the "herringbone"-shaped structure will not cause dullness to the patient, and the air flow formed by the suction will make the patient feel more comfortable. For the disinfection of the inhaled air, the non-woven fabric 17-2 soaked in the disinfectant 12 is used to wrap the fiber filter mat disinfection belt 17 in circulation, and irradiated synchronously with ultraviolet rays, which significantly enhances its adsorption, kills viruses and bacteria and purifies dirty gases Ability. Simultaneously, the viruses and germs passing through the disinfection belt 17 are simultaneously killed and decomposed by photocatalysis, and finally adsorbed by activated carbon, which fully guarantees the characteristics of fast disinfection and purification speed, high efficiency and complete disinfection without secondary pollution of the present invention. The invention has the advantages of reasonable design, simple structure, fast disinfection and purification speed, high efficiency, thorough disinfection and the like. The invention can be hung on the top of the hospital bed to sterilize and disinfect the polluted air in the ward, and can also be equipped with a support as a movable device for use in the operating room, and can also be used to purify the toxic gas discharged in the air kitchen of the chemical laboratory.

Description of drawings

Fig. 1 is a front view of an embodiment of the present invention.

Fig. 2 is a left side view of Fig. 1 .

Fig. 3 is a sectional view along line A-A of Fig. 1 .

Fig. 4 is a schematic structural view of the disinfection belt 17 in Fig. 1 .

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

Example 1

In Figures 1 to 4, the wall-mounted air disinfection device for respiratory infectious wards of this embodiment is composed of a housing 1, a drive shaft 2, a control panel 3, an air outlet pipe 4, an axial fan 5, an activated carbon filter felt 6, a photocatalytic Net 7, ultraviolet lamp power supply 8, ultraviolet lamp 9, guide shaft 10, liquid injection valve 11, disinfectant 12, liquid discharge valve 13, driven shaft 14, liquid level scale 15, air inlet louver 16, disinfection tape 17, quartz The electric heating pipe 18, the photocatalytic net 19 of the air inlet, and the speed-regulating motor 20 of the air outlet are connected to form.

The casing 1 of this embodiment is herringbone-shaped, and an air inlet louver 16 is installed on the lower air inlet of the casing 1 , and the angle of the air inlet louver 16 is symmetrical to the midline of the air inlet and parallel to the two inner surfaces of the casing 1 . The polluted air in the ward enters in the housing 1 from the air inlet louvers 16, and an air outlet pipe 4 is installed on the upper air outlet of the housing 1, and the purified and sterilized air in the housing 1 is discharged from the air outlet pipe 4 to the outside. The lower left side in the housing 1 is fixedly connected with a speed-regulating motor 20 with a threaded fastening connector. The speed-regulating motor 20 provides power for the present invention. The belt is connected with the speed regulating motor 20. The lower right side in the housing 1 is a disinfectant solution chamber, and the disinfectant solution 12 is housed in the disinfectant solution chamber. The disinfectant solution 12 of the present embodiment is an aqueous hydrogen peroxide solution, and the concentration of the aqueous hydrogen peroxide solution is 3%. A driven shaft 14 and a guide shaft 10 are installed in the disinfectant chamber, and the driven shaft 14 is immersed in the disinfectant 12, and a disinfection belt 17 is housed on the driving shaft 2, the driven shaft 14 and the guide shaft 10, and the disinfection belt 17 passes through the guide shaft. Guided by 10, the speed-regulating motor 20 drives the disinfection belt 17 to rotate. The disinfection belt 17 absorbs the disinfectant 12 after passing through the driven shaft 14. The guide shaft 10 is used to guide the disinfection belt 17, tighten the disinfection belt 17 and squeeze the disinfection belt 17. Squeeze out the disinfectant solution 12 absorbed too much on the disinfectant belt 17 and return it to the disinfectant solution chamber. The disinfection belt 17 of the present embodiment is made of the needle-punched filter felt 17-1 of outsourcing non-woven fabric 17-2, and the thickness of the disinfection belt 17 is 4mm, and the disinfection solution 12 is adsorbed on the disinfection belt 17, driven by the speed-regulating motor 20 The disinfection belt 17 that has been adsorbed with disinfectant 12 is constantly rotating, filters and absorbs the virus germs in the airflow, and then transfers to the disinfectant 12, and the disinfectant 12 sterilizes the germs and viruses that enter it, so as to realize the disinfection of the bacteria and viruses that enter it. The polluted air in the ward in the housing 1 is sterilized. The non-woven fabric 17-2 can be replaced after the disinfection belt 17 is used for a period of time. Injection valve 11 and liquid level scale 15 are installed on the right side of housing 1, and disinfectant 12 injects disinfectant solution chamber from liquid injection valve 11, and liquid level scale 15 indicates the liquid level height of disinfectant 12 in disinfectant solution chamber, and disinfectant solution chamber When the liquid level of the disinfectant 12 is lower than the required height, replenish immediately. Discharge valve 13 is installed under housing 1 right side, after the disinfectant solution 12 in the disinfectant solution chamber is used for a period of time, it can be released from discharge valve 13 to replace new disinfectant solution 12. An ultraviolet lamp power supply 8 is fixedly connected with a threaded fastening connector on the upper right side in the housing 1 . An air inlet photocatalytic net 19 is installed on the air inlet louver 16 in the middle of the housing 1 , and the disinfection belt 17 surrounds the air inlet photocatalytic net 19 . The photocatalytic net 19 of the air inlet of the present embodiment adopts the stainless steel mesh with nano-TiO on the surface of 55 meshes, and the photocatalytic net ₁₉ of the air inlet is made into a wave shape, and a curved surface of the photocatalytic net 19 of the wave-shaped air inlet is adjacent to an adjacent one. The angle between the curved faces is 90°. The photocatalytic net of this shape increases the area of the photocatalytic net 19 at the air inlet. Two quartz electric heating tubes 18 are installed below the photocatalytic net 19 of the air inlet, and the power of the quartz electric heating tubes 18 is 100W, and the quartz electric heating tubes 18 are used for heating the disinfection belt 17 to increase the volatilization of disinfectant solution 12 on the disinfection belt 17 , Improve the disinfection effect. 5 ultraviolet lamps 9 are installed up and down on the photocatalytic net 19 of the air inlet, and the wavelength of the ultraviolet light emitted by the ultraviolet lamp 9 is 254nm. The polluted air in the inner ward is sterilized, and under the irradiation of ultraviolet rays, the adsorption of the disinfection belt 17, the ability to kill viruses and germs and purify dirty gases are enhanced. Ultraviolet rays simultaneously provide excitation light to the nano- _TiO2 photocatalyst on the photocatalytic net 19 of the air inlet to purify and kill viruses, germs and dirty gases adsorbed on the photocatalytic net 19 of the air inlet. An air outlet photocatalytic net 7 is installed on the inner upper part of the housing 1, and the air outlet photocatalytic net 7 of the present embodiment adopts a stainless steel net with nano _- TiO on the surface of 55 meshes. Three ultraviolet lamps 9 are installed on the lower side of the photocatalytic net 7 at the air outlet. The wavelength of ultraviolet light emitted by the ultraviolet lamp ₉ is 254nm. The remaining virus germs on the tuyere photocatalytic net 7 radiate and kill the planktonic germs in the air at the same time, and generate ozone to sterilize the virus germs that enter the housing 1 and pass through the disinfection belt 17 . Activated carbon filter felt 6 is installed on the inner bottom of the air outlet pipe 4, and the thickness of the activated carbon filter felt 6 is 4mm. The activated carbon filter felt 6 absorbs and purifies the air flowing out from the air outlet pipe 4, so that the air after the disinfection and purification of the present invention has no Pollution is released into the atmosphere. An axial flow fan 5 is fixedly installed on the upper part of the activated carbon filter felt 6 in the air outlet pipe 4 with a threaded fastening joint. The axial flow fan 5 enables the polluted gas in the ward to enter the housing 1 from the air inlet smoothly and be purified. The rear air is discharged into the atmosphere from the air outlet pipe 4 very smoothly.

A control panel 3 is installed on the housing 1, and a power switch and a control button are installed on the control panel 3. The control button is connected to a speed regulating motor 20, a quartz electric heating tube 18, an ultraviolet lamp power supply 8, and an axial fan 5 through wires.

Example 2

In the present embodiment, the photocatalytic net 19 of the air inlet and the photocatalytic net 7 of the air outlet are 50 mesh surfaces with nano-TiO ₂ stainless steel mesh, a curved surface of the photocatalytic net 19 of the wave-shaped air inlet and an adjacent curved surface The included angle between is 30 °, and the sterilizing solution 12 of disinfecting solution indoor adornment is the hydrogen peroxide aqueous solution that concentration is 2%, and the thickness of disinfection zone 17 is 3mm, and the thickness of activated carbon filter felt 6 is 3mm. Other components and the coupling relationship of the components are the same as in Embodiment 1.

Example 3

In the present embodiment, the photocatalytic net 19 of the air inlet and the photocatalytic net 7 of the air outlet are 60 mesh surfaces with nano-TiO ₂ stainless steel nets, a curved surface of the photocatalytic net 19 of the wave-shaped air inlet and an adjacent curved surface The included angle between is 150 °, and the sterilizing solution 12 of disinfecting solution indoor adornment is the aqueous hydrogen peroxide solution that concentration is 4%, and the thickness of disinfection zone 17 is 5mm, and the thickness of activated carbon filter felt 6 is 6mm. Other components and the coupling relationship of the components are the same as in Embodiment 1.

Example 4

In the above embodiments 1-3, the photocatalytic net 19 of the air inlet and the photocatalytic net ₇ of the air outlet are nickel foams with nano-TiO on the surface, the porosity of the nickel foams is greater than or equal to 95%, and the thickness is 8mm. The other components and the coupling relationship of the components are the same as those in the corresponding embodiments.

Example 5

In the above embodiments 1-3, the photocatalytic net 19 of the air inlet and the photocatalytic net ₇ of the air outlet are nickel foams with nano-TiO on the surface, the porosity of the nickel foams is greater than or equal to 95%, and the thickness is 5mm. The other components and the coupling relationship of the components are the same as those in the corresponding embodiments.

Example 6

In the above embodiments 1-3, the photocatalytic net 19 of the air inlet and the photocatalytic net 7 of the air outlet are nickel foams with nano _- TiO on the surface, the porosity of the nickel foam is greater than or equal to 95%, and the thickness is 10mm. The other components and the coupling relationship of the components are the same as those in the corresponding embodiments.

Claims (10)

1. A wall-mounted air disinfection device for a respiratory infectious disease room, characterized in that: an air inlet louver (16) is installed at the lower air inlet of the housing (1), and an air outlet pipe (4) is arranged on the upper part. 1) A speed-regulating motor (20) and a drive shaft (2) connected to the speed-regulating motor (20) through a belt are arranged on the left side of the inner shell (1). There is disinfectant (12), and the disinfectant chamber is provided with a guide shaft (10) and a driven shaft (14) immersed in the disinfectant (12), and the driving shaft (2) and the driven shaft (14) and the guide shaft (10) is equipped with a disinfection belt (17), on the right side of the housing (1) is provided with a liquid injection valve (11) and a liquid level scale (15), on the right side is provided with a drain valve (13), the housing ( 1) An ultraviolet lamp power supply (8) is provided on the upper part of the inner right side, and a photocatalytic net (19) of the air inlet surrounded by a disinfection belt (17) is arranged on the air inlet louver (16) in the middle of the housing (1), The following of the air inlet photocatalytic net (19) is provided with a quartz electric heating tube (18), and the upper and lower sides of the air inlet photocatalytic net (19) are provided with ultraviolet lamps (9) connected to the ultraviolet lamp power supply (8) by wires. (1) The upper part of the inner part is provided with a photocatalytic net (7) at the air outlet, and an activated carbon filter felt (6) is arranged at the bottom of the air outlet pipe (4), and an activated carbon filter felt (6) is arranged on the air outlet pipe (4). The axial flow fan (5) is provided with a control panel (3) on the housing (1) with a power switch and control buttons connected to electrical components through wires. 2. The wall-mounted air disinfection device for respiratory infectious wards according to claim 1, characterized in that: the photocatalytic net (19) at the air inlet and the photocatalytic net (7) at the air outlet are 50-60 mesh surface with nano The stainless steel net of TiO or surface have nanometer TiO Porosity is greater than or equal to the nickel foam of 95%; Said sterilizing solution (12) is that concentration is the hydrogen peroxide aqueous solution of 2～4%: said sterilizing band (17) is in Textiles are arranged outside the filter felt. 3. The wall-mounted air disinfection device for respiratory infection wards according to claim 1 or 2, characterized in that the photocatalytic net (19) at the air inlet is wave-shaped. 4. The wall-mounted air disinfection device for respiratory infection wards according to claim 3, characterized in that: the angle between a curved surface of the wave-shaped air inlet photocatalytic net (19) and an adjacent curved surface It is 30°～150°. 5. The wall-mounted air disinfection device for respiratory infection ward according to claim 2, characterized in that: the photocatalytic net (19) of the air inlet and the photocatalytic net (7) of the air outlet have a thickness of nano-TiO2 nickel foam on the surface of 5-10 mm; the filter felt is a needle-punched filter felt (17-1); the textile fabric is a non-woven fabric (17-2). 6. The wall-mounted air disinfection device for respiratory infectious wards according to claim 1 or 2, characterized in that the thickness of the disinfection belt (17) is 3-5mm. 7. The wall-mounted air disinfection device for respiratory infectious wards according to claim 1, characterized in that the thickness of the activated carbon filter felt (6) is 3-6mm. 8. The wall-mounted air disinfection device for respiratory infectious wards according to claim 1, characterized in that: the ultraviolet light emitted by the ultraviolet lamp (9) has a wavelength of 254nm. 9. The wall-mounted air disinfection device for respiratory infectious wards according to claim 1, characterized in that the air inlet louvers (16) are: the angle of the air inlet louvers (16) is symmetrical to the center line of the air inlet, and is (1) The two inner sides are parallel. 10. The wall-mounted air disinfection device for respiratory infectious wards according to claim 1, characterized in that: the shape of the casing (1) is herringbone.

Images