CN215765533U - Air exhaust, aeration, filtration, spraying, disinfection and killing device for underground high-pollution building space - Google Patents
Air exhaust, aeration, filtration, spraying, disinfection and killing device for underground high-pollution building space Download PDFInfo
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- CN215765533U CN215765533U CN202021897715.9U CN202021897715U CN215765533U CN 215765533 U CN215765533 U CN 215765533U CN 202021897715 U CN202021897715 U CN 202021897715U CN 215765533 U CN215765533 U CN 215765533U
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Abstract
The utility model provides an air exhaust aeration filtering spraying sterilization device for an underground high-pollution building space, which comprises a negative-pressure metal ventilation pipe in a pollution area, wherein any position on the negative-pressure metal ventilation pipe is communicated with the inlet end of a ventilation pipe with a high-resistance heat-insulation insulating layer; and a plurality of virus killing devices are sequentially arranged at the rear end of the variable-efficiency variable-frequency fan. The utility model firstly carries out high-temperature sterilization on air possibly containing viruses in the highly polluted building space through the electric heating pipeline, and then leads the air after the high-temperature sterilization to the outdoor various virus sterilization devices through the negative pressure pipeline to carry out diversified and thorough sterilization on the introduced air, thereby thoroughly eliminating the viruses in the air of the highly polluted building space.
Description
Technical Field
The utility model relates to an air exhaust aeration filtering spraying disinfection device for an underground high-pollution building space, belonging to the field of indoor environment treatment.
Background
In 2020, new coronavirus has abused worldwide, and a large number of people infected with virus have moved about to be killed, so as to avoid further spreading of virus. Viruses are extremely prone to survive in cold, humid environments for long periods of time, particularly in tight underground spaces or above-ground spaces where external windows cannot be opened. How to ventilate the airtight building space and avoid secondary pollution caused by virus leakage becomes a difficult problem to be solved in the industry.
For example, in an underground trading hall of a certain wholesale market, after merchants infected with viruses are emergently evacuated, the underground trading hall becomes a high-risk area, the space of the underground trading hall is closed, a large amount of meat left behind is rotten and deteriorated in high-temperature weather, the rotten air has complex components and high concentration, and the possibility of viruses and methane is not eliminated. Meanwhile, the secondary pollution caused by the leakage of the virus is worried about, the air conditioner and the exhaust system of the underground trading hall are in a stop state, and people directly enter the underground trading hall to kill the virus with high difficulty and high danger. How to ventilate the closed space in the shortest time to remove viruses and polluted gas creates relatively safe working conditions for the entrance of the disinfection personnel, and becomes the urgent priority of the war.
Research shows that the virus can be transmitted in the form of aerosol, the diameter of the new coronavirus is 60-220 nm, the survival ability in a humid low-temperature environment is extremely strong, the difficulty is high and the cost is high when the new coronavirus is completely filtered by the conventional high-efficiency filter, the new coronavirus cannot be killed, and incomplete filtration or secondary transmission is easily caused. In addition, the air duct in the uncontaminated area before the filter is polluted by virus, and an effective disinfection means is also lacked.
In view of this, it is necessary to develop an air-exhausting, aerating, filtering, spraying and sterilizing device for underground high-pollution building space.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air exhaust aeration filtering spraying sterilization device for an underground high-pollution building space, which is characterized in that air possibly containing viruses in the polluted building space is sterilized at high temperature through an electric heating pipeline, the air sterilized at high temperature is guided to an outdoor closed air pipe through a negative pressure pipeline, and various virus sterilization devices are sequentially arranged in the closed air pipe to carry out diversified sterilization on the introduced air, so that the viruses in the air of the high-pollution building space can be thoroughly removed.
In order to achieve the purpose, the utility model provides an air exhaust aeration filtering spraying killing device for an underground high-pollution building space, which comprises a pollution area negative pressure metal ventilation pipe, wherein at least one end of the pollution area negative pressure metal ventilation pipe is connected with an air port with a primary filter, any position on the pollution area negative pressure metal ventilation pipe is communicated with the inlet end of a high-resistance area heat insulation layer ventilation pipe, the outlet end of the high-resistance area heat insulation layer ventilation pipe is connected to the inlet end of an outdoor negative pressure metal ventilation pipe through an electric backflow prevention valve, and the outlet end of the outdoor negative pressure metal ventilation pipe is connected to an air suction port of a high-efficiency variable frequency fan; and two ends of the high-resistance ventilating pipeline with the heat-insulating layer are electrically connected to a power supply.
Further, the exhaust port of the high-efficiency variable frequency fan is connected to the air inlet of a microporous aerator in the chlorine-containing disinfectant aeration disinfecting water tank, the microporous aerator is provided with a plurality of air outlet microporous gases, the air flow discharged from each air outlet microporous forms small bubbles to enter the chlorine-containing disinfectant aeration disinfecting water tank, and the small bubbles are fully contacted with the chlorine-containing disinfectant, so that at least one part of virus aerosol particles in the bubbles is absorbed by the chlorine-containing disinfectant.
Further, the exhaust port of the chlorine-containing disinfectant aeration disinfecting and killing water tank is connected to a chlorine-containing disinfectant wet film humidifying disinfector, the chlorine-containing disinfectant wet film humidifying disinfector is connected to a humidifying pump, and the humidifying pump enables the chlorine-containing disinfectant to flow out of the upper part of a wet film humidifier of the chlorine-containing disinfectant wet film humidifying disinfector and flow down slowly along the surface of the wet film to soak the whole wet film; the wet film humidifying disinfector of the chlorine-containing disinfectant is sealed in the square air pipe.
Furthermore, a middle-effect filtering section is arranged in the square air pipe and is close to the chlorine-containing disinfectant wet film humidifying disinfector; the middle-effect filtering section is used for performing middle-effect filtering on the air flow sterilized by the chlorine-containing disinfectant wet film humidifying sterilizer.
Furthermore, a high-efficiency filtering section is arranged in the square air pipe and is close to the middle-efficiency filtering section; the high-efficiency filtering section is used for efficiently filtering the air flow subjected to intermediate-efficiency filtering in the intermediate-efficiency filtering section.
Furthermore, a spraying disinfection section is arranged in the square air pipe and is close to the efficient filtering section; the spraying sterilization section is used for spraying hydrogen peroxide to the airflow which is efficiently filtered by the efficient filtering section for sterilization.
Further, a first switching section is connected between the chlorine-containing disinfectant wet film humidifying sterilizer and the middle effect filtering section, and comprises a first high-tightness switching electromagnetic valve and a second high-tightness switching electromagnetic valve, wherein the first high-tightness switching electromagnetic valve is arranged in the square air pipe and is suitable for closing or opening an air flow passage in the square air pipe, and the second high-tightness switching electromagnetic valve is arranged on the outer wall of the square air pipe and is suitable for discharging air flow in the square air pipe.
Further, a second switching section is connected to the spraying disinfecting and killing section, and the second switching section includes a third high-tightness switching electromagnetic valve and a fourth high-tightness switching electromagnetic valve, wherein the third high-tightness switching electromagnetic valve is arranged in the square air duct and connected to the air inlet end of the air compressor, and is suitable for closing or opening the passage from the air flow in the square air duct to the air compressor, and the fourth high-tightness switching electromagnetic valve is arranged on the outer wall of the square air duct and is suitable for discharging the air flow in the square air duct; the second high-airtightness switching solenoid valve is connected to an air inlet end of the air compressor.
Further, an air outlet end of the air compressor is connected to an air inlet of a compressed air storage tank, an air outlet of the compressed air storage tank is connected to a burner, the burner is connected to a gas-fired hot water boiler, a water inlet and a water outlet of the gas-fired hot water boiler are respectively communicated to two hot water pipes, and the two hot water pipes are connected to a high-temperature decontamination water tank; the high-temperature decontamination device is characterized in that a first flue gas waste heat coil pipe is arranged in the compressed air storage tank, a second flue gas waste heat coil pipe is arranged in the high-temperature decontamination water tank, a flue gas outlet of the gas-fired hot water boiler is communicated to the first flue gas waste heat coil pipe, and the first flue gas waste heat coil pipe is communicated to the second flue gas waste heat coil pipe.
Furthermore, an electric backflow prevention valve is arranged at the joint of the high-resistance ventilation pipeline with the heat-insulating layer and the outdoor negative-pressure metal ventilation pipeline, and the electric backflow prevention valve is suitable for being closed in a linkage manner when the high-efficiency variable-frequency fan is shut down so as to effectively prevent airflow from flowing backwards into the high-resistance ventilation pipeline with the heat-insulating layer from the outdoor negative-pressure metal ventilation pipeline.
Through the technical scheme, the utility model can at least realize the following beneficial effects:
1. the air pipe in the non-polluted area can be sterilized. The air pipe in the uncontaminated area can be sterilized and killed by the high-resistance ventilating pipe with the heat-insulating layer, the first electrode contact of the current heating and sterilizing device and the second electrode contact of the current heating and sterilizing device. Specifically, an alternating current power supply in a building is respectively connected with a first electrode contact of the current heating and disinfecting device and a second electrode contact of the current heating and disinfecting device to form a power-on loop with the high-resistance heat-insulation-layer ventilating duct, the temperature of the heating inner wall of the high-resistance heat-insulation-layer ventilating duct is increased to be above 60 ℃ after the high-resistance heat-insulation-layer ventilating duct is powered on, and the temperature of 60-100 ℃ is continuously kept for 30 minutes under the control of the temperature control module, so that high-temperature killing of viruses adsorbed on the surface of the high-resistance heat-insulation-layer ventilating duct can be realized.
2. The aeration principle is utilized to thoroughly kill the viruses. The aeration principle in the water treatment engineering is applied to gas disinfection, large-flow gas is subdivided into small bubbles by using a microporous aerator, then the small bubbles are sent into chlorine-containing disinfectant, the small bubbles are fully contacted with the chlorine-containing disinfectant, part of virus aerosol particles in the bubbles are absorbed by the chlorine-containing disinfectant, part of the virus aerosol particles are combined with the disinfectant volatilized by the chlorine-containing disinfectant (simultaneously, part of VOC in air flow is absorbed), and viruses are disinfected after contacting the chlorine-containing disinfectant, so that the virus content in the air flow sent out by a fan is obviously reduced, and a better disinfection effect is realized compared with the existing technology for disinfecting the air flow by using the disinfectant. In addition, in the space at the upper part in the aeration sterilizing water tank of the chlorine-containing disinfectant, the volatilized chlorine-containing disinfectant is filled due to natural volatilization of the disinfectant, and the air flow is combined with the volatilized chlorine-containing disinfectant in the space, so that a better sterilizing effect can be achieved.
3. Is provided with a humidifying sterilizer of a chlorine-containing disinfectant wet film. The utility model utilizes the principle that the wet film humidifier makes the water-absorbing film contact with air, and the moisture on the film is humidified after being volatilized. The working liquid of the wet film humidifier is changed into disinfectant from air, the disinfectant is volatilized on the wet film and then enters the airflow in the form of disinfectant steam, the particle size of the disinfectant steam is small, and compared with the mode that other disinfectants such as spray liquid drops kill the airflow, the disinfectant steam with small particle size is easy to combine with aerosol in the airflow to effectively kill viruses.
4. The device is provided with an airflow quality monitoring and sampling device and a high-efficiency variable-frequency fan. The rotating speed of the high-efficiency variable-frequency fan can be adjusted by detecting the quality of the air flow passing through each treatment section, the treatment air quantity is changed, and whether the filter is replaced or not is determined. For example, when the air flow quality is found to be poor through the air flow quality monitoring and sampling device, the rotating speed of the high-efficiency variable frequency fan can be reduced, namely, the processed air volume is reduced, the air speed of the cross section of the air flow processing device is reduced, and the air processing effect is improved. If the rotating speed is reduced and the processing air volume is reduced, the filter is replaced when the air quality is still poor through the air flow quality monitoring and sampling device; when the airflow quality is found to be far higher than relevant indexes through the airflow quality monitoring and sampling device, the rotating speed of the high-efficiency variable-frequency fan can be increased, namely, the processed air volume is increased, and the processed air volume in unit time is increased. If the rotating speed is reduced, after the air volume is reduced, when the air quality is still good through the air flow quality monitoring and sampling device, the operation with high rotating speed and high air volume can be maintained, and if the condition that the detected air quality is still poor, the rotating speed and the air volume of the fan are reduced.
The air flow quality monitoring and sampling device and the high-efficiency variable frequency fan are matched to operate, so that the air flow treatment effect is ensured, the treatment effect is not influenced by overlarge treatment air flow, the treatment air volume can be increased at a proper time, and the ventilation efficiency is improved; and whether the filter needs to be replaced can be scientifically determined, waste is not caused by early replacement, and secondary pollution is not caused by late replacement.
5. The system is provided with an air quality monitoring device and a building space negative pressure monitoring device, so that the air quality and the negative pressure condition in the polluted building space can be monitored in real time, equipment in the system is adjusted, the negative pressure in the polluted building space is ensured, and toxic and harmful gases are prevented from leaking.
Drawings
FIG. 1 is a plan layout view of an embodiment of the air exhaust aeration filtering spray sterilizing device for underground high-pollution building space of the utility model.
In the figure, a contaminated building space a; a non-contaminated area B; negative pressure metal ventilation pipe 2 in the polluted area; an air port 3 with a primary filter; a high-resistance ventilation duct 4 with a heat-insulating layer; a current heating disinfection device first electrode contact 5; a current heating disinfection device second electrode contact 6; an electric backflow prevention valve 7; an electric pressure measuring and relieving valve 8; an outdoor negative pressure metal ventilation pipe 9; a high-efficiency variable-frequency fan 10; a chlorine-containing disinfectant aeration sterilizing water tank 11; a microporous aerator 12; a first switching segment 16; a first high-tightness switching solenoid valve 16-1; a second high-tightness switching electromagnetic valve 16-2; a medium-efficiency filtering section 17; a high efficiency filtration stage 18; a spray disinfection section 19; an air compressor 20; a compressed air storage tank 21; a combustor 22; a gas-fired hot water boiler 23; a hot water pipe 24; a high-temperature decontamination water tank 25; an air quality monitoring device 26; a gas flow quality monitoring and sampling device 27; building space negative pressure monitoring devices 28; a temperature control module 29; a square wind pipe 30; a chlorine-containing disinfectant wet film humidifying sterilizer 31; a first flue gas waste heat coil 33; a second flue gas waste heat coil 34; a humidifying pump 35; a second switching segment 36; a third high-tightness switching solenoid valve 36-1; and a fourth high-tightness switching solenoid valve 36-2.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can practice the utility model.
As shown in fig. 1, one embodiment of the air exhaust aeration filtering spray disinfection device for the underground high-pollution building space of the utility model comprises a pollution area negative pressure metal ventilation pipe 2, at least one end of the pollution area negative pressure metal ventilation pipe 2 is connected with an air port 3 with a primary filter, any position on the pollution area negative pressure metal ventilation pipe is communicated with the inlet end of a high-resistance area heat insulation insulating layer ventilation pipe 4, the outlet end of the high-resistance area heat insulation insulating layer ventilation pipe 4 is connected to the inlet end of an outdoor negative pressure metal ventilation pipe 9 through an electric backflow prevention valve 7, and the outlet end of the outdoor negative pressure metal ventilation pipe 9 is connected to an air extraction opening of a high-efficiency variable frequency fan 10; both ends of the high-resistance heat-insulating layer ventilation duct 4 are electrically connected to a power supply. In the figure 1, the two ends of the negative pressure metal ventilation pipe 2 in the pollution area are connected with air ports 3 with primary filters, the middle pipe wall of the negative pressure metal ventilation pipe 2 in the pollution area is communicated with the inlet end of the ventilation pipe 4 with the high-resistance heat-insulation insulating layer, and the joint is sealed to prevent gas leakage, so that a closed airflow passage is formed between the negative pressure metal ventilation pipe 2 in the pollution area and the ventilation pipe 4 with the high-resistance heat-insulation insulating layer.
The negative pressure metal ventilation pipe 2 in the pollution area is arranged at the high position of the pollution area, and air polluted by virus is discharged into the negative pressure metal ventilation pipe 2 in the pollution area from the air port 3 with the primary filter and then enters the ventilation pipe 4 with the high resistance and the heat insulation layer. A building space negative pressure monitoring device 28 is arranged in the polluted building space A, and the building space negative pressure monitoring device 28 comprises a second controller and a gas pressure sensor; the second controller is pre-stored with a preset air pressure, and is adapted to adjust the rotation speed of the high-efficiency variable frequency fan 10 according to the comparison result between the real-time detection value of the air pressure sensor and the preset air pressure value, so as to maintain the air pressure in the polluted building space a within the preset air pressure range. When the building space negative pressure monitoring device 28 monitors that the negative pressure in the polluted building space a does not reach the standard, that is, is higher than the preset air pressure value, the rotating speed of the high-efficiency variable-frequency fan 10 is increased, the air discharge amount is increased, the negative pressure in the polluted building space a is maintained, and the air in the polluted building space a is prevented from leaking. The negative pressure metal ventilation pipe 2 and the ventilation pipe 4 with the high resistance and the heat insulation layer in the pollution area keep the negative pressure in the pipe under the action of the high-efficiency variable frequency fan 10. The tuyere 3 with the primary filter is a tuyere provided with a primary filter or a filter screen. The high-resistance ventilating duct 4 with the heat-insulating layer is made of an austenite stainless steel pipe or other metal materials with high resistance, and the heat-insulating layer is wrapped outside the ventilating duct to prevent electric leakage and reduce heat loss during power-on. The two ends of the high-resistance heat-insulation insulating layer ventilation pipeline 4 are respectively connected with a first electrode contact 5 and a second electrode contact 6 of the current heating disinfection device, a live wire and a zero wire of a power supply of 380V or more are connected on the two electrodes to form a conductive path with the high-resistance heat-insulation insulating layer ventilation pipeline 4, and the high-resistance heat-insulation insulating layer ventilation pipeline 4 generates heat and the temperature rises during electrification. The first electrode contact 5 and the second electrode contact 6 of the current heating and disinfecting device are copper wiring terminals with protective covers, one end of each wiring terminal is connected with the ventilation pipeline 4 with the high-resistance heat-insulation insulating layer, and the other end of each wiring terminal is connected with a power supply. The ventilation pipeline 4 with the high-resistance heat-insulation insulating layer is provided with a temperature control module 29, and the temperature control module 29 comprises a first controller and a temperature sensor arranged on the inner wall of the ventilation pipeline 4 with the high-resistance heat-insulation insulating layer; the first controller is pre-stored with a preset temperature, and is suitable for controlling the on-off of the power supply according to the comparison result of the real-time detection value of the temperature sensor and the preset value, so as to maintain the temperature of the high-resistance heat-insulating-layer ventilation pipe 4 within the preset temperature range. The ventilation pipeline 4 with the high-resistance heat-insulation insulating layer generates heat after being electrified, the temperature of the inner wall is raised to be more than 60 ℃, and the temperature of 60-100 ℃ is continuously kept for 30 minutes under the control of the temperature control module 29, so that the high-temperature killing of the viruses adsorbed on the surface of the ventilation pipeline 4 with the high-resistance heat-insulation insulating layer can be realized. The electric backflow preventing valve 7 is arranged at the joint of the high-resistance ventilating pipeline 4 with the heat-insulating layer and the outdoor negative-pressure metal ventilating pipe 9. When the high-efficiency variable-frequency fan 10 is suddenly stopped in the high-speed operation process, the airflow pressure of the outdoor negative-pressure metal ventilation pipe 9 fluctuates, which may cause the airflow to flow backwards instantly and flow back into the high-resistance heat-insulation-layer ventilation pipe 4 from the outdoor negative-pressure metal ventilation pipe 9, so that the positive air pressure in the high-resistance heat-insulation-layer ventilation pipe 4 relative to the non-contaminated building space is formed instantly, which easily causes toxic and harmful substances such as viruses in the high-resistance heat-insulation-layer ventilation pipe 4 to diffuse out of the pipe from the inside of the pipe, thereby causing the contamination of the non-contaminated area B. Therefore, the electric backflow prevention valve 7 is arranged at the joint of the high-resistance ventilating duct 4 with the heat-insulating layer and the outdoor negative-pressure metal ventilating duct 9, and the electric backflow prevention valve 7 is closed in a linkage manner when the high-efficiency variable-frequency fan 10 stops, so that backflow is effectively prevented. In addition, an electric pressure-measuring pressure-releasing valve 8 is connected to the vicinity of the joint of the outdoor negative-pressure metal ventilation pipe 9 and the high-resistance heat-insulating layer ventilation pipe 4 and is used for measuring the air pressure in the outdoor negative-pressure metal ventilation pipe 9, and when positive pressure occurs in the outdoor negative-pressure metal ventilation pipe 9 and there is a risk that airflow flows backwards into the high-resistance heat-insulating layer ventilation pipe 4, the electric pressure-measuring pressure-releasing valve 8 is opened to release the pressure, so that the airflow is prevented from flowing backwards.
In an embodiment of the air exhaust, aeration, filtration, spraying, disinfection and sterilization device for underground highly polluted building space of the present invention, the air exhaust port of the high-efficiency variable frequency fan 10 is connected to the air inlet of the microporous aerator 12 in the chlorine-containing disinfection solution aeration, disinfection and sterilization water tank 11, the microporous aerator 12 has a plurality of air outlet microporous gases, the air flow discharged from each air outlet microporous forms a small bubble to enter the chlorine-containing disinfection solution aeration, the small bubble is in full contact with the chlorine-containing disinfection solution, so that at least a part of the virus aerosol particles in the bubbles is absorbed by the chlorine-containing disinfection solution, other parts of the virus aerosol particles are combined with the disinfectant volatilized by the chlorine-containing disinfection solution, and simultaneously, part of Volatile Organic Compounds (VOC) in the air flow are absorbed, and the viruses are disinfected after contacting the chlorine-containing disinfectant, thereby significantly reducing the virus content in the air flow sent by the high-efficiency variable frequency fan 10. In the space at the upper part in the water tank 11 for disinfecting and aerating the chlorine-containing disinfectant, the volatilized chlorine-containing disinfectant is filled because the disinfectant naturally volatilizes, and small bubbles burst when floating to the space at the upper part in the water tank 11 for disinfecting and aerating the chlorine-containing disinfectant. The aerosol with virus in the air flow further contacts with the volatile gas (i.e. disinfectant vapor) of the chlorine-containing disinfectant filled in the upper space, and further kills the virus in the air flow.
In an embodiment of the air exhaust, aeration, filtration, spraying, disinfection and sterilization device for underground high-pollution building space of the utility model, the air exhaust port of the chlorine-containing disinfectant aeration, disinfection and sterilization water tank 11 is connected to the chlorine-containing disinfectant wet film humidifying sterilizer 31, the chlorine-containing disinfectant wet film humidifying sterilizer 31 is connected to the humidifying pump 35, the humidifying pump 35 makes the chlorine-containing disinfectant flow out from the upper part of the wet film humidifier of the chlorine-containing disinfectant wet film humidifying sterilizer 31, and slowly flow down along the surface of the wet film to infiltrate the whole wet film; the wet film humidifying disinfector 31 of the chlorine-containing disinfectant is sealed in the square air pipe 30. When the air flow passes through the wet film, the chlorine-containing disinfection liquid on the wet film is accelerated to volatilize and then enters the air flow to kill residual viruses in the air flow. Meanwhile, part of VOC in the air flow is absorbed by the chlorine-containing disinfection solution on the wet film. The humidifying pump 35 can be a small flow variable frequency pump with a pump body and blades made of plastic materials.
In one embodiment of the air exhausting, aerating, filtering, spraying, sterilizing and killing device for underground high-pollution building space, an intermediate-efficiency filtering section 17, an efficient filtering section 18 and a spraying, sterilizing and killing section 19 are sequentially arranged in the square air pipe 30 and are close to the chlorine-containing disinfectant wet film humidifying sterilizer 31; the middle-effect filtering section 17 is used for performing middle-effect filtering on the air flow which is sterilized by the chlorine-containing disinfectant wet film humidifying sterilizer 31, the high-effect filtering section 18 is used for performing high-effect filtering on the air flow which is subjected to middle-effect filtering by the middle-effect filtering section 17, and the spraying sterilizing section 19 is used for spraying hydrogen peroxide to sterilize the air flow which is subjected to high-effect filtering by the high-effect filtering section 18. The hydrogen peroxide can be decomposed into water and oxygen, and the harm to the environment is small. The medium-effect filter in the medium-effect filtering section 17 and the high-effect filter in the high-effect filtering section 18 cannot be cleaned, and the high-effect filtering section belongs to disposable consumables. Other parts can be repeatedly used for many times and cleaned when necessary.
In an embodiment of the air exhausting, aerating, filtering, spraying, disinfecting and killing device for underground high-pollution building space of the present invention, a first switching section 16 is connected between the wet film humidifying and disinfecting device 31 for chlorine-containing disinfectant and the intermediate-effect filtering section 17, and the switching section comprises a first high-tightness switching electromagnetic valve 16-1 and a second high-tightness switching electromagnetic valve 16-2, wherein the first high-tightness switching electromagnetic valve 16-1 is disposed in the square air duct 30 and is adapted to close or open an air flow passage in the square air duct 30, and the second high-tightness switching electromagnetic valve 16-2 is disposed on an outer wall of the square air duct 30 and is adapted to exhaust air flow in the square air duct 30.
In an embodiment of the air exhaust, aeration, filtration, spray killing device for underground high-pollution building space of the present invention, a second switching section 36 is connected to the spray killing section 19, the second switching section 36 includes a third high-tightness switching solenoid valve 36-1 and a fourth high-tightness switching solenoid valve 36-2, wherein the third high-tightness switching solenoid valve 36-1 is disposed in the square air duct 30 and connected to the air inlet end of the air compressor 20, and is adapted to close or open the passage from the air flow in the square air duct 30 to the air compressor 20, and the fourth high-tightness switching solenoid valve 36-2 is disposed on the outer wall of the square air duct 30 and is adapted to exhaust the air flow in the square air duct 30; the second high-airtightness switching solenoid valve 16-2 is connected to the intake end of the air compressor 20.
In one embodiment of the air exhaust, aeration, filtration, spraying, disinfection and sterilization device for underground high-pollution building space of the utility model, an air flow quality monitoring and sampling device 27 is also arranged at each treatment section and is used for monitoring the quality of air flow after passing through each treatment section. The device can monitor the temperature, the humidity, the speed of the air current, the content of particulate matters such as PM2.5, the content of VOC and the content of chlorine-containing disinfectant in real time, and samples the air at certain intervals. The VOC content can represent the pollutant content in the air, and the interval sampling is completed by a miniature air pump and a plurality of miniature sampling containers in the air flow quality monitoring and sampling device 27. At intervals, the small sampling container can be taken out of the airflow quality monitoring and sampling device 27 and sent to a laboratory for virus detection to judge whether residual viruses still exist in the airflow. When the air flow quality monitoring and sampling device 27 monitors that the content of VOC in the air flow exceeds the standard or the content of the chlorine-containing disinfectant is too low, it indicates that the degree of air flow treatment is not enough at this time, and the high-efficiency variable frequency fan 10 needs to be adjusted to reduce the rotating speed, so as to reduce the air supply volume, further reduce the treatment air flow (treatment load) of the chlorine-containing disinfectant aeration disinfecting and killing water tank 11 and the microporous aerator 12, and further improve the treatment effect. On the contrary, when various parameters are far superior to relevant indexes determined according to the prior art, the rotating speed of the high-efficiency variable-frequency fan 10 is increased, so that the air supply amount is increased, and the treatment efficiency is improved.
The parameters obtained by the gas flow quality monitoring and sampling device 27 are also important criteria for determining whether to replace the filter. When the air flow quality monitoring parameters (such as the VOC content is too high) or virus residues are detected after the middle-effect filtering section 17 or the high-effect filtering section 18 are not good, the corresponding filter needs to be replaced as soon as possible.
If the parameters of the airflow quality monitoring and sampling device 27 reach the standard after long-time and multiple monitoring, and no virus is detected, and the polluted building space A still needs to be ventilated, the second high-tightness switching electromagnetic valve 16-2 leading to the air compressor 20 of the first switching section 16 is opened, the first high-tightness switching electromagnetic valve 16-1 leading to the medium-efficiency filtering section 17 in the first switching section 16 is closed, and the airflow is directly discharged outdoors, so that the medium-efficiency or high-efficiency filter loss is reduced. In the initial operating condition, the second high-tightness switching solenoid valve 16-2 leading to the air compressor 20 is closed, and the first high-tightness switching solenoid valve 16-1 leading to the middle-effect filtering section 17 is opened.
In an embodiment of the air exhaust, aeration, filtration, spray disinfection and sterilization device for underground high-pollution building space of the utility model, the air outlet end of the air compressor 20 is connected to the air inlet of the compressed air storage tank 21, the air outlet of the compressed air storage tank 21 is connected to the burner 22, the burner 22 is connected to the gas-fired hot water boiler 23, the water inlet and the water outlet of the gas-fired hot water boiler 23 are respectively communicated to the two hot water pipes 24, and the two hot water pipes 24 are connected to the high-temperature decontamination water tank 25; the compressed air storage tank 21 is internally provided with a first flue gas waste heat coil pipe 33, the high-temperature decontamination water tank 25 is internally provided with a second flue gas waste heat coil pipe 34, a flue gas outlet of the gas-fired hot water boiler 23 is communicated to the first flue gas waste heat coil pipe 33, and the first flue gas waste heat coil pipe 33 is communicated to the second flue gas waste heat coil pipe 34.
The air compressor completely collects and compresses the air flow passing through the humidifying sterilizer 31 or the spraying sterilizing section 19 of the chlorine-containing disinfectant wet film without directly discharging any gas to the atmosphere, so that the risk of virus leakage to the outside through aerosol in the air flow is greatly reduced again.
The air flow collected by compression of the air compressor 20 is stored in the compressed air storage tank 21 for standby. The gas-fired hot water boiler 23 may provide bath hot water for a nearby hotel, dormitory or resident and also provide washing and disinfecting water for the high temperature washing and disinfecting water tank 25. The gas-fired hot water boiler 23 is provided with a burner 22, and the burner 22 does not directly take air from the atmosphere for combustion, but introduces compressed air from the compressed air storage tank 21 to mix with gas and then burns, thereby heating the gas-fired hot water boiler 23. The compressed air in the compressed air storage tank 21 enters the combustor 22 to be mixed with the fuel gas and then combusted, the oxygen in the compressed air is consumed, the temperature of the residual nitrogen and the possible residual toxic and harmful gas is instantly raised to 900-1100 ℃ in the hearth, wherein the virus possibly contained with extremely low probability is instantly changed into ash at the high temperature of the hearth and cannot survive, and then the gas in the hearth forms the flue gas of the fuel gas boiler and is discharged out of the boiler to enter the first flue gas waste heat coil 33. The heat exchange is carried out with the compressed air in the compressed air storage tank 21 to first flue gas waste heat coil pipe 33, promotes compressed air's temperature, further reduces the probability that the virus survives in the compressed air storage tank 21, and improves the compressed air's that gets into combustor 22 temperature, is favorable to promoting combustor 22's combustion efficiency, practices thrift the gas quantity, and is energy-concerving and environment-protective.
The second flue gas waste heat coil pipe 34 is arranged in the high-temperature decontamination water tank 25, flue gas (the temperature can reach more than 100 ℃) subjected to heat exchange through the first flue gas waste heat coil pipe 33 is led into the second flue gas waste heat coil pipe 34 in the high-temperature decontamination water tank 25 to exchange heat with high-temperature water, the temperature of the high-temperature water in the high-temperature decontamination water tank 25 is kept, heat in the flue gas is further recovered, and the high-temperature decontamination water tank is energy-saving and environment-friendly. When the system is out of service and maintained, the hot water in the high-temperature decontamination water tank 25 can be used for flushing and maintaining the chlorine-containing disinfectant aeration decontamination water tank 11, the microporous aerator 12, the high-tightness switching electromagnetic valves and the like, so that the pollutant residue in each section is avoided.
In an embodiment of the air exhaust, aeration, filtration, spray sterilization and killing device for underground high-pollution building space of the present invention, an air quality monitoring device 26 is disposed in the polluted building space a, the air quality monitoring device 26 includes a third controller and an air quality sensor, and an air quality parameter preset value is prestored in the third controller, which is adapted to open and close the electric backflow prevention valve 7, the high-efficiency variable frequency fan 10, the humidifying pump 35, the air compressor 20, the burner 22 and each high-tightness switching electromagnetic valve on the airflow path to perform sterilization or stop sterilization and killing work according to a comparison result between a real-time detection value of the air quality sensor and the air quality parameter preset value. The air compressor 20 and the combustor 22 need to comprehensively see the detection parameters of the airflow quality monitoring and sampling device 27 to determine whether to start, if the detection parameters of the airflow quality monitoring and sampling device 27 do not reach the standard, it indicates that the airflow in the pipeline needs to be continuously killed, and at this time, the start operation of the air compressor 20 and the combustor 22 needs to be maintained so as to collect and consume the processed airflow, and the airflow is burned and killed. If the detection parameters of the airflow quality monitoring and sampling device 27 reach the standard, which indicates that the pollutants such as viruses in the airflow in the pipeline are completely killed, the killing operation can be stopped, and the air compressor 20 and the burner 22 can be turned off at this time.
The working process of one embodiment of the air exhaust, aeration, filtration, spraying, sterilizing and killing device for the underground high-pollution building space can be carried out according to the following steps: (1) monitoring the air quality in the building space polluted by the virus in real time, if the air quality does not reach the standard, conducting the air in the building space polluted by the virus to an outdoor square air pipe 30 through a negative pressure metal ventilation pipe 2 in a polluted area, a ventilation pipe 4 with a high-resistance heat-insulation insulating layer and an outdoor negative pressure metal ventilation pipe 9 in sequence, and electrifying and heating the ventilation pipe 4 with the high-resistance heat-insulation insulating layer to kill the virus attached to the pipe wall at high temperature; arranging a high-efficiency variable frequency fan 10 in the square air pipe 30, and connecting the outlet end of the outdoor negative-pressure metal ventilation pipe 9 to an air suction port of the high-efficiency variable frequency fan 10 to generate negative pressure on a drainage pipeline; an electric backflow prevention valve 7 is arranged at the joint of the high-resistance ventilating duct 4 with the heat-insulating layer and the outdoor negative-pressure metal ventilating duct 9, and when the high-efficiency variable-frequency fan 10 is stopped, the electric backflow prevention valve 7 is automatically closed so as to effectively prevent airflow from flowing backwards into the high-resistance ventilating duct 4 with the heat-insulating layer from the outdoor negative-pressure metal ventilating duct 9; an electric pressure measuring and relieving valve 8 is connected to the vicinity of the connection part of the outdoor negative pressure metal ventilation pipe 9 and the high-resistance heat insulation insulating layer ventilation pipe 4 and is used for measuring the air pressure in the outdoor negative pressure metal ventilation pipe 9, when positive pressure occurs in the outdoor negative pressure metal ventilation pipe 9, the electric pressure measuring and relieving valve 8 is opened for pressure relief, and airflow is prevented from flowing backwards into the high-resistance heat insulation insulating layer ventilation pipe 4 from the outdoor negative pressure metal ventilation pipe 9; (2) at least one of the following disinfecting and killing treatment modes is carried out on the air flow flowing through the square air pipe 30: aerating and disinfecting the chlorine-containing disinfectant and humidifying and disinfecting the chlorine-containing disinfectant by a wet film; the air flow after the disinfection treatment is treated by one of the following three ways: in the first mode, the compressed air is stored in a compressed air storage tank 21 after being compressed, the compressed air in the compressed air storage tank 21 enters a combustor to heat a gas-fired hot water boiler 23, and the air is completely sterilized in the combustion process and then is changed into smoke; in the second mode, after medium-effect filtration, high-efficiency filtration and oxidant spraying sterilization are sequentially carried out, the mixture is compressed and stored in a compressed air storage tank 21, the compressed air in the compressed air storage tank 21 enters a combustor 22 for heating a gas-fired hot water boiler 23, and the air is completely sterilized in the combustion process and then is changed into flue gas; in the third mode, the mixture is directly discharged outdoors after medium-effect filtration, high-efficiency filtration and oxidant spraying sterilization are sequentially carried out; the three treatment modes are switched by switching on and off of high-tightness switching electromagnetic valves arranged at corresponding positions in the square air pipe 30; a plurality of airflow quality monitoring and sampling devices 27 are arranged on the flow path of the airflow in the square air duct 30 and are used for monitoring the quality of the airflow after various killing treatments and whether residual viruses exist or not, and increasing or decreasing the types of airflow killing treatment modes according to the monitoring result; (3) hot water in the gas-fired hot water boiler 23 is circularly supplied to a high-temperature decontamination water tank 25 for decontamination of each disinfection device; set up flue gas waste heat coil pipe in compressed air storage tank 21 and high temperature decontamination water tank 25 respectively, gas boiler 23 exhaust flue gas passes through two in proper order discharge behind the flue gas waste heat coil pipe, retrieve the waste heat and be used for promoting compressed air's in the compressed air storage tank 21 temperature in order to improve combustion efficiency and keep the temperature in the high temperature decontamination water tank 25.
The control software related to the utility model adopts the prior art.
While there have been shown and described what are at present considered the fundamental principles of the utility model, its essential features and advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. The air exhaust aeration filtering spraying disinfection and sterilization device for the underground high-pollution building space is characterized by comprising a pollution area negative-pressure metal ventilation pipe (2), wherein at least one end of the pollution area negative-pressure metal ventilation pipe (2) is connected with an air port (3) with a primary filter, any position on the pollution area negative-pressure metal ventilation pipe is communicated with the inlet end of a high-resistance area heat-insulation-layer ventilation pipe (4), the outlet end of the high-resistance area heat-insulation-layer ventilation pipe (4) is connected to the inlet end of an outdoor negative-pressure metal ventilation pipe (9) through an electric backflow prevention valve (7), and the outlet end of the outdoor negative-pressure metal ventilation pipe (9) is connected to an air suction port of a high-efficiency variable-frequency fan (10); both ends of the high-resistance ventilating duct (4) with the heat-insulating layer are electrically connected to a power supply;
an air outlet of the high-efficiency variable frequency fan (10) is connected to an air inlet of a microporous aerator (12) in a chlorine-containing disinfectant aeration disinfecting and killing water tank (11), the microporous aerator (12) is provided with a plurality of air outlet microporous gases, the air flow discharged from each air outlet microporous forms small bubbles to enter the chlorine-containing disinfectant aeration disinfecting and killing water tank (11), and the small bubbles are fully contacted with the chlorine-containing disinfectant to ensure that at least one part of virus aerosol particles in the bubbles is absorbed by the chlorine-containing disinfectant;
an exhaust port of the chlorine-containing disinfectant aeration disinfecting and killing water tank (11) is connected to a chlorine-containing disinfectant wet film humidifying disinfector (31), the chlorine-containing disinfectant wet film humidifying disinfector (31) is connected to a humidifying pump (35), and the humidifying pump (35) enables chlorine-containing disinfectant to flow out of the upper part of a wet film humidifier of the chlorine-containing disinfectant wet film humidifying disinfector (31) and flow down slowly along the surface of a wet film to soak the whole wet film; the wet film humidifying disinfector (31) of the chlorine-containing disinfectant is sealed in the square air pipe (30);
a middle-effect filtering section (17) is arranged in the square air pipe (30) and is close to the chlorine-containing disinfectant wet film humidifying disinfector (31); the middle-effect filtering section (17) is used for performing middle-effect filtering on the airflow sterilized by the chlorine-containing disinfectant wet film humidifying sterilizer (31).
2. An exhaust, aeration, filtration, spray disinfection and sterilization device for underground high-pollution building spaces according to claim 1, characterized in that a high-efficiency filter section (18) is arranged in the square air duct (30) and next to the middle-efficiency filter section (17); the high-efficiency filtering section (18) is used for efficiently filtering the air flow subjected to the intermediate-efficiency filtering in the intermediate-efficiency filtering section (17).
3. An exhaust, aeration, filtration, spray disinfection and sterilization device for underground high-pollution building spaces according to claim 2, characterized in that a spray disinfection and sterilization section (19) is arranged in the square air duct (30) and is close to the high-efficiency filtration section (18); the spraying sterilization section (19) is used for spraying hydrogen peroxide to the air flow which is efficiently filtered by the efficient filtering section (18) for sterilization.
4. An exhaust, aeration, filtration, spray disinfection and sterilization device for underground highly polluted building space according to claim 3, characterized in that a first switching section (16) is connected between the chlorine-containing disinfectant wet film humidifying sterilizer (31) and the middle-effect filtering section (17), and the switching section comprises a first high-tightness switching solenoid valve (16-1) and a second high-tightness switching solenoid valve (16-2), wherein the first high-tightness switching solenoid valve (16-1) is arranged in the square air duct (30) and is adapted to close or open an air flow passage in the square air duct (30), and the second high-tightness switching solenoid valve (16-2) is arranged on the outer wall of the square air duct (30) and is adapted to discharge the air flow in the square air duct (30).
5. The underground high-pollution building space air exhausting, aerating, filtering, spraying and killing device according to claim 4, characterized in that a second switching section (36) is connected next to the spraying and killing section (19), the second switching section (36) comprises a third high-tightness switching solenoid valve (36-1) and a fourth high-tightness switching solenoid valve (36-2), wherein the third high-tightness switching solenoid valve (36-1) is arranged in the square air duct (30) and connected to the air inlet end of the air compressor (20) and is adapted to close or open the passage of the air flow in the square air duct (30) to the air compressor (20), and the fourth high-tightness switching solenoid valve (36-2) is arranged on the outer wall of the square air duct (30) and is adapted to exhaust the air flow in the square air duct (30); the second high-tightness switching electromagnetic valve (16-2) is connected to the air inlet end of the air compressor (20).
6. An exhaust, aeration, filtration, spray disinfection and sterilization device for underground high-pollution building spaces according to claim 5, wherein the air outlet end of the air compressor (20) is connected to the air inlet of a compressed air storage tank (21), the air outlet of the compressed air storage tank (21) is connected to a burner (22), the burner (22) is connected to a gas-fired hot water boiler (23), the water inlet and the water outlet of the gas-fired hot water boiler (23) are respectively communicated to two hot water pipes (24), and the two hot water pipes (24) are connected to a high-temperature decontamination water tank (25); the device is characterized in that a first flue gas waste heat coil pipe (33) is arranged in the compressed air storage tank (21), a second flue gas waste heat coil pipe (34) is arranged in the high-temperature decontamination water tank (25), a flue gas outlet of the gas-fired hot water boiler (23) is communicated to the first flue gas waste heat coil pipe (33), and the first flue gas waste heat coil pipe (33) is communicated to the second flue gas waste heat coil pipe (34).
7. The exhaust, aeration, filtration, spray sterilization device for the underground high-pollution building space according to claim 6, wherein an electric backflow prevention valve (7) is arranged at the joint of the high-resistance ventilating duct (4) with the heat-insulating layer and the outdoor negative-pressure metal ventilating duct (9), and the electric backflow prevention valve (7) is suitable for being closed in a linkage manner when the high-efficiency variable-frequency fan (10) is shut down, so that airflow is effectively prevented from flowing back into the high-resistance ventilating duct (4) with the heat-insulating layer from the outdoor negative-pressure metal ventilating duct (9).
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| CN202021897715.9U CN215765533U (en) | 2020-09-02 | 2020-09-02 | Air exhaust, aeration, filtration, spraying, disinfection and killing device for underground high-pollution building space |
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| CN111878927A (en) * | 2020-09-02 | 2020-11-03 | 中铁建设集团有限公司 | Air exhaust, disinfection and purification system and method for high-pollution building space |
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