Compressed bioaerosol disinfection device, method, system and method of use

Abstract

The present invention provides a compressed bioaerosol disinfection device, method, system and use method, which belongs to the technical field of drainage systems. The device includes a contact cylinder, a spiral baffle, a hollow shaft, an ultraviolet lamp, a water supply pipe, a high-frequency atomizer, a water storage cylinder, a photocatalyst coating and an axis bracket. In view of the different fan flow rates of different drainage pump station ventilation systems, the airflow can be compressed to a certain extent by the spiral baffle to extend the stagnation time of the airflow in the disinfection area and improve the disinfection efficiency; a large number of micron-sized water droplets formed by the high-frequency atomizer to stimulate the fragmentation of the water surface are used to capture microorganisms in the gas and replenish free radicals for the surface of the photocatalyst to ensure the stable operation of the ultraviolet-photocatalytic combined disinfection system.

Description

Technical Field

[0001] The present invention belongs to the technical field of drainage systems, and in particular relates to a compressed bioaerosol disinfection device, method, system and a method of using the system. Background Art

[0002] Municipal pumping stations are a key link in the urban drainage system and an indispensable component to ensure the safe operation of the system. With the continuous development of urban construction, there are more and more sensitive facilities such as residential areas, shopping malls, and schools around municipal pumping stations. When sewage is transported over long distances and passes through the water inlet gate well, screen decontamination machine, and pumping station forebay in the pumping station, the flow pattern changes, resulting in violent turbulence, which is easy to produce a large number of aerosols containing pathogenic microorganisms, posing potential hazards to municipal pumping station employees and surrounding residents.

[0003] At present, some drainage pumping stations have installed indoor and outdoor ventilation and deodorization systems to address the odor problem, but no disinfection device has been installed inside or at the end of the ventilation system to treat aerosols containing pathogenic microorganisms in the exhaust gas. An invention patent has been published, "A method for treating contaminated gas in a drainage system with a disinfection device (CN 112843317 A)", which cannot meet the airflow stagnation time required to achieve a certain disinfection effect due to the acceleration of its gas path, and its photocatalyst is easily deactivated due to the lack of additional water supplementation, making it difficult to achieve long-term effective operation.

[0004] Therefore, it is a technical problem to be solved urgently by those skilled in the art to invent a compressed bioaerosol disinfection device, method, system and method of using the system, which can efficiently disinfect the gas exhausted from the municipal pump station ventilation system at a lower operating cost. Summary of the invention

[0005] The present invention proposes a compressed bioaerosol disinfection device, method, system and method of using the system, which are used to solve the technical problems that the gas discharged from the current ventilation system cannot be efficiently disinfected, the airflow stagnation time that can achieve a certain disinfection effect cannot be met, and its photocatalyst is easily inactivated due to the lack of additional water replenishment, making it difficult to achieve long-term effective operation.

[0006] Specifically, the present application provides a compressed bioaerosol disinfection device, which includes a contact cylinder, a spiral baffle, a hollow rotating shaft, an ultraviolet lamp tube, a water supply pipe, a high-frequency atomizer, a water storage cylinder, a photocatalyst coating and a shaft bracket;

[0007] Among them, the shaft bracket is fixed on the top of the contact cylinder, the hollow rotating shaft is arranged on the shaft bracket and is located on the symmetry axis of the contact cylinder, the spiral baffle is fixed on the hollow rotating shaft and is located in the contact cylinder, the ultraviolet lamp tube is installed inside the hollow rotating shaft, and the photocatalyst coating is attached to the inside of the contact cylinder; the top of the water storage cylinder is connected to the bottom of the contact cylinder, and the water storage cylinder is communicated with the contact cylinder, the water replenishment pipe is connected to one side of the bottom of the water storage cylinder, and the high-frequency atomizer is located at the bottom of the water storage cylinder; an air outlet is arranged on the top side wall of the contact cylinder, and an air inlet is arranged on one side of the bottom of the contact cylinder.

[0008] Furthermore, the compressed bioaerosol disinfection device also includes a motor and a motor bracket; the motor bracket is fixed to the top of the contact cylinder, the motor is mounted on the motor bracket, and the hollow rotating shaft is connected to the motor.

[0009] Furthermore, the compressed bioaerosol disinfection device also includes a photovoltaic cover; the photovoltaic cover is installed on the top of the contact cylinder, the width of the photovoltaic cover is greater than the diameter of the contact cylinder, and the motor cover is arranged at the bottom of the photovoltaic cover.

[0010] Furthermore, the compressed bioaerosol disinfection device also includes a battery; the battery is fixed on the lower surface of the photovoltaic cover, and the battery is electrically connected to the photovoltaic cover, the motor and the high-frequency atomizer to store the electrical energy converted by the photovoltaic cover in the battery and power the motor and the high-frequency atomizer.

[0011] Furthermore, the diameter of the spiral baffle is smaller than the inner diameter of the contact cylinder, the length of the spiral baffle is smaller than or equal to the length of the contact cylinder, and the length of the hollow rotating shaft is greater than or equal to the length of the contact cylinder.

[0012] Furthermore, the photocatalyst coating is attached to the outer surface of the spiral baffle.

[0013] Furthermore, the photocatalyst coating is attached to the lower surface of the spiral baffle.

[0014] The present application also provides a compressed bioaerosol disinfection method, which comprises the following steps:

[0015] Setting up the compressed bioaerosol disinfection device as described above;

[0016] Inject water into the water supply pipe, and control the high-frequency atomizer to turn on to generate micron-sized water droplets;

[0017] Injecting the gas to be purified into the gas inlet, the gas to be purified is mixed with micron-sized water droplets and then enters the contact cylinder;

[0018] The ultraviolet lamp is controlled to be turned on to emit ultraviolet light, which directly irradiates and kills microorganisms in the gas to be purified, and catalyzes the reaction between water droplets attached to the surface of the photocatalyst coating and oxygen to generate hydroxyl radicals and superoxide radicals to kill microorganisms in the gas to be purified.

[0019] The present application also provides a compressed bioaerosol disinfection system, which includes a ventilation system and the compressed bioaerosol disinfection device described above, wherein an air inlet of the compressed bioaerosol disinfection device is sealedly connected to the ventilation system.

[0020] The present application also provides a method for using a compressed bioaerosol disinfection system, which comprises the following steps:

[0021] The gas to be purified is discharged from the ventilation system into the air inlet of the device, mixed with the micron-sized water droplets produced by the high-frequency atomizer, and then enters the contact cylinder;

[0022] The ultraviolet lamp is controlled to be turned on to emit ultraviolet light, which directly irradiates and kills microorganisms in the gas to be purified, and catalyzes the reaction between water droplets attached to the surface of the photocatalyst coating and oxygen to generate hydroxyl radicals and superoxide radicals to kill microorganisms in the gas to be purified;

[0023] The sterilized gas is discharged into the atmosphere through the gas outlet.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1) The present invention discloses a compressed bioaerosol disinfection device, method, system and method of using the system. According to the different fan flow rates of ventilation systems of different drainage pump stations, the airflow can be compressed to a certain extent by a spiral baffle to extend the stagnation time of the airflow in the disinfection area, thereby improving the disinfection efficiency;

[0026] 2) The present invention discloses a compressed bioaerosol disinfection device, method, system and method of using the system. A large number of micron-sized water droplets are formed by the high-frequency atomizer to stimulate the fragmentation of the water surface to capture microorganisms in the gas and replenish free radicals on the surface of the photocatalyst to ensure the stable operation of the ultraviolet-photocatalytic combined disinfection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a left side view of a compressed bioaerosol disinfection system of the present invention;

[0028] Figure 2 It is a right side view of a compressed bioaerosol disinfection system of the present invention;

[0029] Figure 3 It is a schematic diagram of the overall structure of a compressed bioaerosol disinfection system of the present invention;

[0030] Figure 4 It is a schematic cross-sectional structure diagram of a compressed bioaerosol disinfection system of the present invention;

[0031] Figure 5 It is a partial structural schematic diagram of a compressed bioaerosol disinfection system of the present invention;

[0032] Figure 6 It is a partial structural cross-sectional view of a compressed bioaerosol disinfection system of the present invention;

[0033] Figure 7 The schematic diagram of a compressed bioaerosol disinfection system of the present invention is shown in FIG.

[0034] The accompanying drawings are marked as follows: 1-photovoltaic cover; 2-air outlet; 3-motor; 4-contact cylinder; 5-spiral baffle; 6-hollow shaft; 7-ultraviolet lamp; 8-air inlet; 9-ventilation system; 10-water supply pipe; 11-high frequency atomizer; 12-water storage cylinder; 13-photocatalyst coating; 14-shaft bracket; 15-motor bracket; 16-battery. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the implementation of the present invention clearer, the technical solution in the embodiment of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiment of the present invention.

[0036] In one embodiment of the present invention, a compressed bioaerosol disinfection device is provided, which is suitable for use in a drainage pump station ventilation system. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the compressed bioaerosol disinfection device includes a contact cylinder 4, a spiral baffle 5, a hollow rotating shaft 6, an ultraviolet lamp tube 7, a water supply pipe 10, a high-frequency atomizer 11, a water storage cylinder 12, a photocatalyst coating 13 and a shaft bracket 14.

[0037] Among them, the shaft bracket 14 is fixed on the top of the contact cylinder 4, the hollow rotating shaft 6 is arranged on the shaft bracket 4 and is located on the symmetry axis of the contact cylinder 4, the spiral baffle 5 is fixed on the hollow rotating shaft 6 and is located in the contact cylinder 4, the ultraviolet lamp 7 is installed inside the hollow rotating shaft 6, and the photocatalyst coating 13 is attached to the inside of the contact cylinder 4; the top of the water storage cylinder 12 is connected to the bottom of the contact cylinder 4, and the water storage cylinder 12 is communicated with the contact cylinder 4, the water replenishment pipe 10 is connected to one side of the bottom of the water storage cylinder 12, and the high-frequency atomizer 11 is located at the bottom of the water storage cylinder 12; the air outlet 2 is arranged on the top side wall of the contact cylinder 4, and the air inlet 8 is arranged on one side of the bottom of the contact cylinder 4.

[0038] The high-frequency atomizer 11 is specifically a submersible ultrasonic atomizer, which is an instrument that uses ultrasonic directional pressure to make the liquid surface bulge, cavitation occurs around the bulged liquid surface, and atomizes the liquid into small molecular aerosols, that is, through the high-frequency resonance of the ceramic atomizer, the liquid water molecular structure is broken up to produce a naturally floating water mist. The high-frequency atomizer 11 uses electronic high-frequency oscillation (the oscillation frequency is 1.7MHz or 2.4MHz, which exceeds the human hearing range, and the electronic oscillation is harmless to the human body and animals), and through the high-frequency resonance of the ceramic atomizer, the liquid water molecular structure is broken up to produce a naturally floating water mist, without heating or adding any chemical reagents. Compared with the heating atomization method, energy is saved by 90%. In addition, a large amount of negative ions will be released during the atomization process, which will produce an electrostatic reaction with the smoke, dust, etc. floating in the air, so that it is precipitated, and at the same time, harmful substances such as formaldehyde, carbon monoxide, and bacteria can be effectively removed, so that the air is purified and the occurrence of diseases is reduced.

[0039] The spiral blade structure of the spiral baffle 5 can prolong the airflow stagnation time of the gas to be purified to achieve a certain disinfection effect.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the compressed bioaerosol disinfection device also includes a motor 3 and a motor bracket 15; the motor bracket 15 is fixed to the top of the contact cylinder 4, the motor 3 is mounted on the motor bracket 15, and the hollow shaft 6 is connected to the motor 3. In view of the different fan flow rates of different drainage pump station ventilation systems, the airflow can be compressed to a certain extent by adjusting the speed of the spiral baffle to extend the stagnation time of the airflow in the disinfection area and improve the disinfection efficiency.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the compressed bioaerosol disinfection device further includes a photovoltaic cover plate 1; the photovoltaic cover plate 1 is installed at the top of the contact cylinder 4, the width of the photovoltaic cover plate 1 is greater than the diameter of the contact cylinder 4, and the motor 3 is covered at the bottom of the photovoltaic cover plate 1. The top of the photovoltaic cover plate 1 has a photovoltaic panel for power generation.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the compressed bioaerosol disinfection device also includes a battery 16; the battery 16 is fixed on the lower surface of the photovoltaic cover 1, and the battery 16 is electrically connected to the photovoltaic cover 1, the motor 3 and the high-frequency atomizer 11 to store the electrical energy converted by the photovoltaic cover 1 in the battery 16 and power the motor 3 and the high-frequency atomizer 11.

[0043] Furthermore, the diameter of the spiral baffle 5 is smaller than the inner diameter of the contact cylinder 4 , the length of the spiral baffle 5 is smaller than or equal to the length of the contact cylinder 4 , and the length of the hollow rotating shaft 6 is greater than or equal to the length of the contact cylinder 4 .

[0044] Furthermore, the photocatalyst coating 13 is attached to the outer surface of the spiral baffle 5 .

[0045] Furthermore, the photocatalyst coating 13 is attached to the lower surface of the spiral baffle 5 .

[0046] It can be understood that the compressed bioaerosol disinfection device includes a photovoltaic cover 1, an air outlet 2, a motor 3, a contact cylinder 4, a spiral baffle 5, a hollow shaft 6, an ultraviolet lamp 7, an air inlet 8, a water supply pipe 10, a high-frequency atomizer 11, a water storage cylinder 12, a photocatalyst coating 13, a shaft bracket 14, a motor bracket 15, and a battery 16, wherein the photovoltaic cover 1 is installed at the top of the air outlet 2 to block rainwater and store the converted electrical energy in the battery 16 to power the device.

[0047] The contact cylinder 4 is sealed and connected to the air inlet 8; the water storage cylinder 12 is sealed and connected to the bottom end of the contact cylinder and communicates with the water supply pipe 10, and a high-frequency atomizer 11 is installed inside the water storage cylinder.

[0048] The spiral baffle 5 is connected to the motor 3 fixed on the motor bracket 15 through the hollow rotating shaft 6 fixed on the shaft bracket 14, and a photocatalyst coating 13 is attached to the lower surface of the spiral baffle.

[0049] The ultraviolet lamp tube 7 is installed inside the hollow rotating shaft.

[0050] Furthermore, the motor 3, the contact cylinder 4, the spiral baffle 5, and the hollow rotating shaft 6 together form a compressed airflow disinfection channel. While the airflow discharged from the ventilation system spirals and moves upward along the air path between the spiral baffles, the spiral baffle is driven by the motor to rotate in the opposite direction of the airflow spiraling, and the airflow is compressed to a certain extent to extend the stagnation time of the airflow in the disinfection area, thereby improving the disinfection efficiency.

[0051] Furthermore, the ultraviolet lamp 7, water supply pipe 10, high-frequency atomizer 11, water storage cylinder 12, and photocatalyst coating 13 together constitute an ultraviolet-photocatalytic combined disinfection system. While ultraviolet rays kill microorganisms by direct irradiation, they catalyze the reaction between water droplets attached to the surface of the photocatalyst and oxygen to generate hydroxyl radicals and superoxide radicals with strong oxidizing effects, further enhancing the disinfection effect; a large number of micron-sized water droplets formed by the high-frequency atomizer stimulating the water surface to break up and mix with the gas discharged from the ventilation system and enter the compressed airflow disinfection channel to capture microorganisms in the gas and replenish free radicals for the surface of the photocatalyst.

[0052] The present application also provides a compressed bioaerosol disinfection method, which comprises the following steps:

[0053] Setting up the compressed bioaerosol disinfection device as described above;

[0054] Inject water into the water supply pipe 10, and control the high-frequency atomizer 11 to turn on to generate micron-sized water droplets;

[0055] The gas to be purified is injected into the gas inlet 8, and the gas to be purified is mixed with micron-sized water droplets and then enters the contact cylinder 4;

[0056] The ultraviolet lamp 7 is controlled to be turned on to emit ultraviolet light, which directly irradiates and kills microorganisms in the gas to be purified, and catalyzes the reaction between water droplets attached to the surface of the photocatalyst coating 13 and oxygen to generate hydroxyl radicals and superoxide radicals to kill microorganisms in the gas to be purified.

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the present application also provides a compressed bioaerosol disinfection system, which includes a ventilation system 9 and the compressed bioaerosol disinfection device described above, and the air inlet 8 of the compressed bioaerosol disinfection device is sealedly connected to the ventilation system 9.

[0058] The present application also provides a method for using a compressed bioaerosol disinfection system, which comprises the following steps:

[0059] The gas to be purified is discharged from the ventilation system 9 into the air inlet 8 of the device, mixed with the micron-sized water droplets produced by the high-frequency atomizer 11, and then enters the contact cylinder 4;

[0060] The ultraviolet lamp 7 is controlled to be turned on to emit ultraviolet light, which directly irradiates and kills microorganisms in the gas to be purified, and catalyzes the water droplets attached to the surface of the photocatalyst coating 13 to react with oxygen to generate hydroxyl radicals and superoxide radicals to kill microorganisms in the gas to be purified;

[0061] The sterilized gas is discharged into the atmosphere through the gas outlet 2.

[0062] It is understandable that when the compressed bioaerosol disinfection system includes all the specific configurations of the compressed bioaerosol disinfection device described above, the method for using the compressed bioaerosol disinfection system includes the following steps:

[0063] The photovoltaic cover 1 stores the converted electrical energy in the battery 16 to power the device;

[0064] The indoor air of the drainage pump station is discharged into the air inlet 8 of the device by the ventilation system 9, and enters the contact cylinder 4 after being mixed with a large number of micron-sized water droplets. The water supply pipe 10 replenishes the tap water consumed by the high-frequency atomizer 11 in the water storage cylinder 12;

[0065] While the airflow moves upward along the air path between the spiral baffles 5, the motor 3 drives the hollow shaft 6 to drive the spiral baffle to rotate in the opposite direction of the airflow, thereby compressing the airflow to a certain extent to extend the stagnation time of the airflow in the disinfection area, thereby improving the disinfection efficiency;

[0066] The ultraviolet lamp 7 installed inside the hollow shaft will catalyze the reaction between water droplets attached to the surface of the photocatalyst coating 13 on the spiral baffle and oxygen to generate hydroxyl radicals and superoxide radicals with strong oxidizing effect, while killing microorganisms by direct irradiation, further enhancing the disinfection effect;

[0067] The sterilized gas is discharged into the atmosphere through the gas outlet 2.

[0068] Compared with the prior art, the present invention has the following beneficial effects:

[0069] 1) The present invention discloses a compressed bioaerosol disinfection device, method, system and method of using the system. According to the different fan flow rates of ventilation systems of different drainage pump stations, the airflow can be compressed to a certain extent by a spiral baffle to extend the stagnation time of the airflow in the disinfection area, thereby improving the disinfection efficiency;

[0070] 2) The present invention discloses a compressed bioaerosol disinfection device, method, system and method of using the system. A large number of micron-sized water droplets are formed by the high-frequency atomizer to stimulate the fragmentation of the water surface to capture microorganisms in the gas and replenish free radicals on the surface of the photocatalyst to ensure the stable operation of the ultraviolet-photocatalytic combined disinfection system.

Claims

1. A compressed bioaerosol disinfection device, characterized in that: The compressed bioaerosol disinfection device comprises a photovoltaic cover plate (1), a motor (3), a contact cylinder (4), a spiral baffle (5), a hollow rotating shaft (6), an ultraviolet lamp tube (7), a water supply pipe (10), a high-frequency atomizer (11), a water storage cylinder (12), a photocatalyst coating (13), a shaft bracket (14), a motor bracket (15) and a battery (16); The shaft support (14) is fixed on the top of the contact cylinder (4), the hollow shaft (6) is arranged on the shaft support (14) and is located on the symmetry axis of the contact cylinder (4), the spiral baffle (5) is fixed on the hollow shaft (6) and is located inside the contact cylinder (4), the ultraviolet lamp (7) is installed inside the hollow shaft (6), and the photocatalyst coating (13) is attached inside the contact cylinder (4); the top of the water storage cylinder (12) is connected to the bottom of the contact cylinder (4), and the water storage cylinder (12) is connected to the contact cylinder (4), the water supply pipe (10) is connected to one side of the bottom of the water storage cylinder (12), and the high-frequency atomizer (11) is located at the bottom of the water storage cylinder (12); an air outlet (2) is arranged on the top side wall of the contact cylinder (4), and an air inlet (8) is arranged on one side of the bottom of the contact cylinder (4); The motor bracket (15) is fixed on the top of the contact cylinder (4), the motor (3) is mounted on the motor bracket (15), and the hollow rotating shaft (6) is connected to the motor (3); the photovoltaic cover (1) is mounted on the top of the contact cylinder (4), the width of the photovoltaic cover (1) is greater than the diameter of the contact cylinder (4), and the motor (3) is covered at the bottom of the photovoltaic cover (1); the battery (16) is fixed on the lower surface of the photovoltaic cover (1), and the battery (16) is electrically connected to the photovoltaic cover (1), the motor (3) and the high-frequency atomizer (11) so as to store the electric energy converted by the photovoltaic cover (1) in the battery (16) and supply power to the motor (3) and the high-frequency atomizer (11).

2. The compressed bioaerosol disinfection device according to claim 1, characterized in that: The diameter of the spiral baffle (5) is smaller than the inner diameter of the contact cylinder (4), the length of the spiral baffle (5) is less than or equal to the length of the contact cylinder (4), and the length of the hollow rotating shaft (6) is greater than or equal to the length of the contact cylinder (4).

3. The compressed bioaerosol disinfection device according to claim 1, characterized in that: The photocatalyst coating (13) is attached to the outer surface of the spiral baffle (5).

4. The compressed bioaerosol disinfection device according to claim 3, characterized in that: The photocatalyst coating (13) is attached to the lower surface of the spiral baffle (5).

5. A compressed bioaerosol disinfection method, characterized in that: The following steps are involved: A compressed bioaerosol disinfection device as claimed in any one of claims 1 to 4 is provided; Injecting water into the water supply pipe (10), and controlling the high-frequency atomizer (11) to turn on to generate micron-sized water droplets; Injecting the gas to be purified into the gas inlet (8), and the gas to be purified is mixed with micron-sized water droplets and then enters the contact cylinder (4); The ultraviolet lamp tube (7) is controlled to be turned on to emit ultraviolet light, which directly irradiates and kills microorganisms in the gas to be purified, and catalyzes the reaction between water droplets attached to the surface of the photocatalyst coating (13) and oxygen to generate hydroxyl radicals and superoxide radicals to kill microorganisms in the gas to be purified.

6. A compressed bioaerosol disinfection system, characterized in that: It comprises a ventilation system (9) and the compressed bioaerosol disinfection device according to any one of claims 1 to 4, wherein the air inlet (8) of the compressed bioaerosol disinfection device is sealedly connected to the ventilation system (9).

7. The method for using a compressed bioaerosol disinfection system according to claim 6, characterized in that: The following steps are involved: The gas to be purified is discharged from the ventilation system (9) into the air inlet (8) of the device, mixed with the micron-sized water droplets generated after the high-frequency atomizer (11) is turned on, and then enters the contact cylinder (4); The ultraviolet lamp (7) is controlled to be turned on to emit ultraviolet light, which directly irradiates and kills microorganisms in the gas to be purified, and catalyzes the reaction between water droplets attached to the surface of the photocatalyst coating (13) and oxygen to generate hydroxyl radicals and superoxide radicals to kill microorganisms in the gas to be purified; The gas after the sterilization treatment is discharged into the atmosphere through the gas outlet (2).

Images