CN111895551B - High-pollution exhaust multiple disinfection system and method - Google Patents
High-pollution exhaust multiple disinfection system and method Download PDFInfo
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- CN111895551B CN111895551B CN202010911304.9A CN202010911304A CN111895551B CN 111895551 B CN111895551 B CN 111895551B CN 202010911304 A CN202010911304 A CN 202010911304A CN 111895551 B CN111895551 B CN 111895551B
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims abstract description 77
- 239000002184 metal Substances 0.000 claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 claims abstract description 75
- 241000700605 Viruses Species 0.000 claims abstract description 35
- 238000005485 electric heating Methods 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 230000002265 prevention Effects 0.000 claims abstract description 18
- 238000000605 extraction Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 230000001954 sterilising effect Effects 0.000 claims description 25
- 238000012806 monitoring device Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 10
- 238000011897 real-time detection Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000013517 stratification Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/02—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air by heating or combustion
- A61L9/03—Apparatus therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/11—Apparatus for controlling air treatment
- A61L2209/111—Sensor means, e.g. motion, brightness, scent, contaminant sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention provides a high-pollution exhaust multiple disinfection system and a method, wherein the system comprises a pollution area negative pressure metal ventilation pipe, any position on the pollution area negative pressure metal ventilation pipe is communicated with the inlet end of a high-resistance ventilating pipe with a heat insulation insulating layer, the outlet end of the ventilating pipe with the heat insulation insulating layer 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 extraction opening of a high-efficiency variable frequency fan; the rear end of the variable-efficiency variable-frequency fan is sequentially provided with a plurality of virus killing devices. The invention firstly carries out high-temperature disinfection on the air possibly containing viruses in the high-pollution building space through the electric heating pipeline, then leads the air after the high-temperature disinfection to the outdoor various virus disinfection devices through the negative pressure pipeline to thoroughly disinfect the introduced air in a diversified way, and can thoroughly remove the viruses in the air in the high-pollution building space.
Description
Technical Field
The invention relates to a high-pollution exhaust multiple disinfection system and method, and belongs to the field of indoor environment treatment.
Background
Viruses are extremely prone to long-term survival in wet and cold environments, especially in tight, air-tight underground spaces or above-ground spaces where the outer window cannot be opened. How to ventilate and ventilate the airtight building space and avoid secondary pollution caused by virus leakage becomes a difficult problem to be solved in the industry.
Studies have shown that viruses can be transmitted in aerosol form and have extremely high viability in humid low temperature environments.
In view of this, it is necessary to develop a high pollution exhaust multiple disinfection system.
Disclosure of Invention
The invention aims to provide a high-pollution exhaust multiple disinfection system and a method, which are used for firstly carrying out high-temperature disinfection on air possibly containing viruses in a polluted building space through an electric heating pipeline, then draining the air after the high-temperature disinfection to an outdoor closed air pipe through a negative pressure pipeline, and arranging a plurality of virus disinfection devices in the closed air pipe in sequence to carry out diversified disinfection on the introduced air, so that viruses in the air in the high-pollution building space can be thoroughly removed.
In order to achieve the above object, in a first aspect, the present invention provides a high-pollution exhaust multiple disinfection system, 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 a tuyere with a primary filter, any position on the tuyere is communicated with an inlet end of a high-resistance ventilating pipe with a heat insulation insulating layer, an outlet end of the ventilating pipe with the heat insulation insulating layer is connected to an inlet end of an outdoor negative pressure metal ventilation pipe through an electric backflow prevention valve, and an outlet end of the outdoor negative pressure metal ventilation pipe is connected to an extraction opening of a high-efficiency variable frequency fan; the high-resistance ventilating duct with heat-insulating layer is electrically connected to a power source at both ends.
Further, the high-efficiency variable frequency fan is sealed in Fang Fengguan, a high-temperature electric heating section is arranged in Fang Fengguan and is close to the high-efficiency variable frequency fan, an air current electric heater is arranged in the high-temperature electric heating section, and the air current electric heater is suitable for heating air current to above 65 ℃.
Further, a high-temperature water heating section is arranged in Fang Fengguan adjacent to the high-temperature electric heating section, high-temperature water coils which are arranged in a staggered mode are arranged in the high-temperature water heating section, and two ports of the high-temperature water coils are respectively communicated with two hot water pipes to form a hot water circulation pipeline.
Further, a temperature layering flow guiding device is arranged between the high-temperature electric heating section and the high-temperature water heating section in the Fang Fengguan; the temperature layering flow guiding device is used for realizing the position replacement of the upper air flow and the lower air flow so as to eliminate the coanda air flow and strengthen the heat exchange and avoid the influence of part of the air flow on the disinfection effect caused by no heating.
Further, the temperature layering flow guiding device comprises an upper layer high-temperature air guiding pipe, a lower layer low-temperature air guiding pipe and a central compression air duct; the air flow on the wall of the lower part of the air duct is compressed by the air duct section reduction and then led to the downstream high position, the air flow on the wall of the upper part of the air duct is compressed and accelerated and led to the downstream low position by the upper high-temperature air duct, and the air flows on the two sides are blocked by the inclined sections of the upper high-temperature air duct and the lower low-temperature air duct and then enter the central compressed air duct after being compressed, so that the air flow on the wall is eliminated and heat exchange is enhanced.
Further, an electric backflow prevention valve is arranged at the joint of the high-resistance ventilating duct with the heat-insulating layer and the outdoor negative pressure metal ventilating duct, and the electric backflow prevention valve is suitable for being closed in a linkage manner when the high-efficiency variable frequency fan is stopped, so that airflow is effectively prevented from flowing backwards from the outdoor negative pressure metal ventilating duct into the high-resistance ventilating duct with the heat-insulating layer.
Further, an electric pressure measuring relief valve is connected to the vicinity of the connection part of the outdoor negative pressure metal ventilation pipe and the ventilation pipe with the high-resistance insulating layer and is used for measuring the air pressure in the outdoor negative pressure metal ventilation pipe, and when positive pressure occurs in the outdoor negative pressure metal ventilation pipe, the electric pressure measuring relief valve is opened to relieve pressure so as to prevent air flow from flowing into the ventilation pipe with the high-resistance insulating layer from flowing backwards from the outdoor negative pressure metal ventilation pipe.
Further, a temperature control module is arranged on the high-resistance ventilating duct with the heat insulation insulating layer, and the temperature control module comprises a first controller and a temperature sensor arranged on the inner wall of the ventilating duct with the heat insulation insulating layer; the first controller is pre-stored with 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 temperature value so as to maintain the temperature of the high-resistance ventilating pipeline with the heat insulation insulating layer within the preset temperature range.
Further, a building space negative pressure monitoring device is arranged in the polluted building space, and the building space negative pressure monitoring device comprises a second controller and an air pressure sensor; the second controller is pre-stored with preset air pressure, and is suitable for adjusting the rotating speed of the high-efficiency variable-frequency fan according to the comparison result of 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 within the preset air pressure range.
In a second aspect, the invention provides a high-pollution exhaust multiple disinfection method, comprising the following steps: monitoring the air quality in the building space polluted by the virus in real time, if the air quality does not reach the standard, sequentially leading the air in the building space polluted by the virus to an outdoor air pipe through a negative pressure metal ventilating pipe in a pollution area, a high-resistance ventilating pipe with a heat insulation insulating layer and an outdoor negative pressure metal ventilating pipe, and electrifying and heating the ventilating pipe with the heat insulation insulating layer to kill viruses attached to the pipe wall at a high temperature; the square air pipe is internally provided with a high-efficiency variable frequency fan, and the outlet end of the outdoor negative pressure metal ventilating pipe is connected to the extraction opening of the high-efficiency variable frequency fan to generate negative pressure on the drainage pipeline; an electric backflow prevention valve is arranged at the joint of the high-resistance ventilating pipe with the heat-insulating layer and the outdoor negative pressure metal ventilating pipe, and is automatically closed when the high-efficiency variable frequency fan is stopped, so that air flow is effectively prevented from flowing backwards into the ventilating pipe with the heat-insulating layer from the outdoor negative pressure metal ventilating pipe; an electric pressure measuring and relieving valve is connected to the outdoor negative pressure metal ventilation pipe near the joint of the outdoor negative pressure metal ventilation pipe and the high-resistance ventilating pipe with the heat-insulating layer and is used for measuring the air pressure in the outdoor negative pressure metal ventilation pipe, and when positive pressure occurs in the outdoor negative pressure metal ventilation pipe, the electric pressure measuring and relieving valve is opened to relieve pressure, so that air flow is prevented from flowing back into the ventilating pipe with the high-resistance ventilating pipe with the heat-insulating layer from the outdoor negative pressure metal ventilation pipe; and (3) carrying out at least one of the following disinfection treatment modes on the air flow flowing through the square air pipe: high temperature electrical heating sterilization and high temperature water heating sterilization.
Through the technical scheme, the invention at least has the following beneficial effects:
1. The air pipe in the uncontaminated area can be killed. The air pipe in the uncontaminated area can be killed by the ventilation pipeline with the high-resistance band heat insulation layer, the first electrode contact of the current heating sterilizing device and the second electrode contact of the current heating sterilizing device. Specifically, an alternating current power supply in a building is respectively connected with a first electrode contact of a current heating sterilizing device and a second electrode contact of the current heating sterilizing device, an electrifying loop is formed by the alternating current power supply and a high-resistance ventilating pipeline with a heat insulation insulating layer, the temperature of the heating inner wall of the ventilating pipeline with the heat insulation insulating layer is raised to be more than 60 ℃ after the ventilating pipeline with the heat insulation insulating layer is electrified, the temperature is kept at 60-100 ℃ for 30 minutes under the control of a temperature control module, and then high-temperature sterilization of viruses adsorbed on the surface of the ventilating pipeline with the heat insulation insulating layer can be realized.
2. A high-temperature electric heating section is arranged. Related studies have shown that viruses are difficult to survive in high temperature environments. The invention is provided with the high-temperature electric heating section, can heat the air flow, the surface temperature of the electric heating rod of the air flow electric heater in the high-temperature electric heating section can reach hundreds of ℃, viruses in the air flow in direct contact with the electric heating rod can be killed instantly, and the whole temperature of the air flow is heated to be more than 65 ℃. After the air flow is heated, the relative humidity is greatly reduced, and chlorine-containing disinfection liquid drops in the air flow are further volatilized and gasified at high temperature. The relative humidity of the air flow is greatly reduced, which is beneficial to the next filtering treatment. In addition, as the virus has obviously shortened survival time at the high temperature of more than 65 ℃, the risk of residual virus in the air flow is further reduced after the virus is heated by the high-temperature electric heating section.
3. A temperature layered flow guiding device is arranged. The lower low-temperature air flow enters the lower low-temperature air guide pipe and then flows out of the temperature layered flow guiding device from the upper part, and the upper high-temperature air flow passes through the upper high-temperature air guide pipe and then flows out of the temperature layered flow guiding device from the lower part, so that the upper and lower air flows enter a high-temperature water heating section for heating after the positions of the upper and lower air flows are replaced in the temperature layered flow guiding device, and the conditions that the temperature of the upper and lower air flows are layered and the temperature of the lower air flow is not up to the standard are avoided. In addition, after the air flow in the center of the air duct is blocked and compressed by the inclined sections of the upper high-temperature air guide pipe and the lower low-temperature air guide pipe, vortex is formed, and then the air enters a narrow central compressed air duct, the air speed is increased, the vortex is further aggravated, the air flow in the center of the air duct can be aggravated through the heat exchange between the wall surface of the air guide pipe and the upper high-temperature air guide pipe and the lower low-temperature air guide pipe, and the temperatures of the lower air flow, the upper air flow and the central air flow in the air duct are more approximate. And the heat exchange effect is better than the laminar flow effect when the airflow with vortex flows to the high-temperature water heating section. Due to the installation process problem, a gap is inevitably formed between the heating device and the square air pipe. Air is a fluid with certain viscosity, and has wall-attached airflow attached to the wall of the air duct at the contact position of the air duct wall, and the wall-attached airflow has low flow speed and is easy to pass through a gap between the heating device and the wall of the square air duct. This makes it easier for the coanda airflow to enter the next processing stage from the slot without being treated by the heating means. This is unacceptable in systems handling high-risk viruses. The air flow on the wall of the lower part of the air channel is compressed by the section of the air channel through the lower low-temperature air guide pipe and then is led to the downstream high position, the air flow on the wall of the upper part of the air channel is compressed and accelerated through the upper high-temperature air guide pipe and then is led to the downstream low position, and the air flows on the wall of the two sides are blocked by the inclined sections of the upper high-temperature air guide pipe and the lower low-temperature air guide pipe and then enter the central compressed air channel after being compressed. Therefore, the coanda airflow on the four sides of the square air pipe is guided and compressed to form airflow without coanda airflow and then sent to the downstream, and the condition that the coanda airflow flows through gaps between the heating device and the square air pipe and is not effectively disinfected is avoided. Because the upper high-temperature air guide pipe, the lower low-temperature air guide pipe and the central compressed air duct are all provided with structures with suddenly reduced air pipe sections, air flows flowing through the upper high-temperature air guide pipe, the lower low-temperature air guide pipe and the central compressed air duct can be compressed and accelerated and then are ejected out from the minimum section at a high speed, and thus wall-attached air flows are eliminated. When high-speed air flow is sprayed to the high-temperature water heating sections where the coils are densely distributed, severe vortex is formed due to the blocking of the coils which are staggered, and the heat exchange effect is enhanced.
4. The invention is provided with the high-temperature water heating section and the temperature layering flow guiding device, which are matched, and is equivalent to effectively supplementing the high-temperature electric heating section, so that all airflows are ensured to be fully heated. Specifically, the high-temperature water heating section further heats the air flow from the high-temperature electric heating section, and the temperature of the air flow can be further increased to 75 ℃. The water inlet temperature of the high-temperature water heating section is 95 ℃, and the water outlet temperature is 85 ℃. When passing through the high-temperature water heating section, the surface area of the dense high-temperature water coil is large, the contact area with the air flow is large, the air flow is fully heated, the condition of uneven temperature in the air flow is avoided (for example, the cross section size of an air pipe is large, after electric heating, the condition that the air flow at the upper part exceeds 70 ℃ and the air flow at the lower part of the air pipe just reaches 70 ℃ possibly occurs), and the risk of residual viruses in the air flow is further reduced.
5. Is provided with a high-efficiency variable-frequency fan. The rotating speed of the high-efficiency variable frequency fan can be adjusted according to the detected air quality of the polluted building space, so that the treatment air quantity is changed, the air flow treatment effect is ensured, the treatment effect is not influenced by the overlarge treatment air quantity, the treatment air quantity can be increased when appropriate, and the ventilation efficiency is improved.
6. The air quality monitoring device is arranged, the building space negative pressure monitoring device is arranged, 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 the leakage of toxic and harmful gases is avoided.
Drawings
Fig. 1 is a plan view of one embodiment of a high pollution exhaust multiple disinfection system of the present invention.
FIG. 2 is a right side view of a cross-section of a temperature stratification deflector in one embodiment of the high-pollution exhaust multiple-disinfection system of the present invention;
FIG. 3 is a side cutaway view of a temperature stratification deflector in one embodiment of the high pollution exhaust multiple sterilization system of the present invention;
FIG. 4 is a top view cut-away of a temperature stratification deflector in one embodiment of the high pollution exhaust multiple sterilization system of the present invention;
FIG. 5 is a right side view of a cross section of an upper high temperature air duct of a temperature stratification air deflector in one embodiment of the high pollution exhaust multiple disinfection system of the present invention;
FIG. 6 is a side view, in cross section, of an upper high temperature air duct of a temperature stratification deflector in one embodiment of the high pollution discharge multiple sterilization system of the present invention;
FIG. 7 is a top view cut-away of an upper high temperature air duct of a temperature stratification deflector in one embodiment of the high pollution exhaust multiple disinfection system of the present invention;
FIG. 8 is a right side view of a cross section of a lower low temperature air duct of the temperature stratification air deflector in one embodiment of the high pollution exhaust multiple sterilization system of the present invention;
FIG. 9 is a side view, in cross section, of a lower low temperature air duct of a temperature stratification deflector in one embodiment of a high pollution discharge multiple sterilization system of the present invention;
Fig. 10 is a top view, in cross section, of a lower low temperature air duct of a temperature stratification deflector in one embodiment of a high pollution exhaust multiple sterilization system of the present invention.
In the figure, a polluted building space A; an uninfected area B; a negative pressure metal ventilation pipe 2 in the polluted area; an air port 3 with a primary filter; a high-resistance ventilating duct 4 with a heat-insulating layer; a first electrode contact 5 of the electric current heating sterilizing device; a second electrode contact 6 of the electric current heating sterilizing device; an electric backflow prevention valve 7; an electric pressure measuring relief valve 8; an outdoor negative pressure metal ventilation pipe 9; an efficient variable frequency fan 10; a high temperature electric heating section 13; a high temperature water heating section 14; a hot water pipe 24; an air quality monitoring device 26; a building space negative pressure monitoring device 28; a temperature control module 29; a square air pipe 30; a temperature stratification flow guiding device 32; an upper high temperature air guide pipe 32-1; a lower low-temperature air guide pipe 32-2; diagonal segment 32-2-1; a central compression tunnel 32-3.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the drawings and detailed description so that those skilled in the art can practice the present invention.
As shown in fig. 1, one embodiment of the high-pollution exhaust multiple disinfection system of the invention comprises 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 a tuyere 3 with a primary filter, any position on the tuyere is communicated with the inlet end of a high-resistance ventilating pipe 4 with an insulating layer, the outlet end of the ventilating pipe 4 with the insulating layer is connected with 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 with the extraction opening of a high-efficiency variable frequency fan 10; the high-resistance ventilating duct with heat insulating layer 4 is electrically connected to a power source at both ends. In fig. 1, two ends of a negative pressure metal ventilation pipe 2 in a pollution area are connected with air inlets 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 a ventilation pipe 4 with a high-resistance heat-insulating layer, and the connection part 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-insulating layer.
The negative pressure metal ventilation pipe 2 of the pollution area is arranged at the high position of the pollution area, and the air polluted by the virus is discharged into the negative pressure metal ventilation pipe 2 of the pollution area from the tuyere 3 with the primary filter and then enters the ventilation pipe 4 with the high resistance and 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 an air 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 of 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, namely, is higher than the preset air pressure value, the rotating speed of the efficient variable frequency fan 10 is increased, the air discharge quantity 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 in the pollution area and the ventilation pipeline 4 with the high-resistance heat-insulating layer keep the negative pressure in the pipe under the action of the efficient variable-frequency fan 10. The tuyere 3 with the primary filter is a tuyere provided with a coarse filter or a filter screen. The ventilation pipeline 4 with the high-resistance heat-insulating layer is made of austenitic stainless steel pipes or other metal materials with higher resistance, and is wrapped with the heat-insulating layer, so that electric leakage is prevented, and heat loss during electrifying is reduced. The two ends of the high-resistance ventilating duct 4 with the heat-insulating layer are respectively connected with the first electrode contact 5 of the current heating sterilizing device and the second electrode contact 6 of the current heating sterilizing device, the two electrodes are connected with the live wire and the zero wire of a power supply with 380V or more, a conductive path is formed between the high-resistance ventilating duct 4 with the heat-insulating layer and the high-resistance ventilating duct 4 with the heat-insulating layer, and the high-resistance ventilating duct 4 with the heat-insulating layer heats and the temperature rises when the power is supplied. The first electrode contact 5 of the current heating sterilizing device and the second electrode contact 6 of the current heating sterilizing device are wiring terminals with protective covers made of copper, one end of each wiring terminal is connected with the ventilating duct 4 with the high-resistance heat-insulating layer, and the other end of each wiring terminal is connected with a power supply. A temperature control module 29 is arranged on the high-resistance heat-insulating layer ventilation pipeline 4, and the temperature control module 29 comprises a first controller and a temperature sensor arranged on the inner wall of the high-resistance heat-insulating layer ventilation pipeline 4; 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 ventilating duct 4 with the heat insulation insulating layer within the preset temperature range. The high-resistance ventilating duct 4 with the heat-insulating layer heats after being electrified, the temperature of the inner wall is raised to be more than 60 ℃, and the temperature of the inner wall is kept at 60-100 ℃ for 30 minutes under the control of the temperature control module 29, so that the high-temperature disinfection of viruses adsorbed on the surface of the ventilating duct 4 with the heat-insulating layer can be realized. The electric backflow prevention valve 7 is arranged at the joint of the high-resistance ventilating duct 4 with the heat insulation insulating layer and the outdoor negative pressure metal ventilating duct 9. When the high-efficiency variable frequency fan 10 is suddenly stopped in the high-speed operation process, the air flow pressure of the outdoor negative pressure metal ventilation pipe 9 fluctuates, so that the air flow is possibly caused to flow back instantaneously, and flows back into the high-resistance insulating layer ventilation pipe 4 from the outdoor negative pressure metal ventilation pipe 9, so that positive air pressure in the high-resistance insulating layer ventilation pipe 4 relative to an uninfected building space is instantaneously formed, and toxic and harmful substances such as viruses in the high-resistance insulating layer ventilation pipe 4 are easily caused to diffuse from the inside of the pipe to the outside of the pipe, and the uninfected area B is polluted. Therefore, the electric backflow prevention valve 7 is arranged at the joint of the high-resistance ventilating pipeline 4 with the heat insulation insulating layer and the outdoor negative pressure metal ventilating pipeline 9, and the electric backflow prevention valve 7 is closed in a linkage manner when the high-efficiency variable frequency fan 10 is stopped, so that backflow is effectively prevented. In addition, an electric pressure measuring relief valve 8 is connected to the outdoor negative pressure metal ventilation pipe 9 near the connection part with the high-resistance ventilating pipe 4 with the heat insulation insulating layer 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, when the risk that air flow reversely flows back to the high-resistance ventilating pipe 4 with the heat insulation insulating layer exists, the electric pressure measuring relief valve 8 is opened to relieve pressure, and the air flow is prevented from reversely flowing.
In one embodiment of the high-pollution exhaust multiple disinfection system of the invention, the high-efficiency variable frequency fan 10 is sealed in the square air pipe 30, a high-temperature electric heating section 13 is arranged in the square air pipe 30 close to the high-efficiency variable frequency fan 10, and an air flow electric heater is arranged in the high-temperature electric heating section 13 and is suitable for heating air flow to more than 65 ℃. After the airflow is heated, the relative humidity is greatly reduced. And at high temperature, the tiny droplets of chlorine-containing disinfectant in the airflow are further heated and gasified. In addition, the relative humidity of the air flow is greatly reduced, which is beneficial to the next filtering treatment. Meanwhile, as the survival time of the viruses is obviously shortened at the high temperature of more than 65 ℃, the risk of residual viruses in the air flow is further reduced after the viruses are heated by the high-temperature electric heating section 13. In addition, the surface temperature of the electric heating rod of the air flow electric heater in the high-temperature electric heating section 13 can reach hundreds of degrees centigrade, and the electric heating rod has instant disinfection function on viruses in air flow in direct contact with the electric heating rod.
In one embodiment of the high-pollution exhaust multiple disinfection system of the present invention, the square air pipe 30 is provided with a high-temperature water heating section 14 adjacent to the high-temperature electric heating section 13, the high-temperature water heating section 14 is provided with high-temperature water coils arranged in a staggered manner, and two ports of the high-temperature water coils are respectively connected to two hot water pipes 24 to form a hot water circulation pipeline. The high-temperature water heating section 14 further heats the air flow from the high-temperature electric heating section 13, and the temperature of the air flow can be further raised to 75 ℃. The water inlet temperature of the high-temperature water heating section 14 can reach 95 ℃ and the water outlet temperature is 85 ℃. When the air flow passes through the high-temperature water heating section 14, the surface area of the dense high-temperature water coil is large, the contact area with the air flow is large, the air flow is sufficiently heated, the condition that the temperature in the air flow is uneven (for example, the cross section size of the square air pipe 30 is large, after electric heating, the condition that the air flow at the upper part of the square air pipe 30 exceeds 70 ℃ and the air flow at the lower part just reaches 70 ℃ can possibly occur) can be avoided, and the risk of residual viruses in the air flow is further reduced.
In one embodiment of the high-pollution exhaust multiple disinfection system of the present invention, a temperature layering flow guiding device 32 is disposed in the square air pipe 30 between the high-temperature electric heating section 13 and the high-temperature water heating section 14. As shown in fig. 2-10, the arrows in the drawing indicate the flow direction of the air flow, and the temperature layered air guiding device 32 includes an upper layer high temperature air guiding pipe 32-1, a lower layer low temperature air guiding pipe 32-2 and a central compressed air duct 32-3; the lower low-temperature air flow flows out from the upper part after entering the lower low-temperature air guide pipe 32-2, and the upper high-temperature air flow flows out from the lower part after passing through the upper high-temperature air guide pipe 32-1, so that the upper and lower air flows enter the high-temperature water heating section 14 for heating after being displaced in the temperature layered flow guide device 32, and the condition that the temperature of the lower air flow does not reach the standard due to temperature layering in the air flow is avoided.
The air flow in the center of the air duct is blocked and compressed by the inclined sections 32-2-1 of the upper high-temperature air guide pipe 32-1 and the lower low-temperature air guide pipe 32-2 to form vortex, and then enters the narrow central compressed air duct 32-3, so that the air speed is increased, the vortex is further increased, the air flow in the center of the air duct can be increased, and the heat exchange between the air flow in the center of the air duct and the upper high-temperature air guide pipe 32-1 and the lower low-temperature air guide pipe 32-2 is enhanced through the wall surface of the air guide pipe, so that the temperatures of the lower air flow, the upper air flow and the central air flow in the air duct are more approximate. And, the heat exchange effect is better than the laminar flow effect when the airflow with vortex flows to the high-temperature water heating section 14.
Due to the installation process problems, gaps are inevitably present between the heating devices in the high-temperature electric heating section 13 and the high-temperature water heating section 14 and the square air pipe 30. Air is a fluid with certain viscosity, and has wall-attached airflow attached to the wall surface at the position where the air contacts with the inner wall of the square air pipe 30, the wall-attached airflow has low flow velocity, and the air is easy to pass through a gap between the heating device and the square air pipe 30. This makes it easier for the coanda airflow to enter the next processing stage from the slot without being treated by the heating means. This is unacceptable in systems handling high-risk viruses. The air flow with the wall at the lower part of the air duct is compressed by the reduced section of the air duct through the lower low-temperature air duct 32-2 and then led to the downstream high position, the air flow with the wall at the upper part of the air duct is compressed and accelerated through the upper high-temperature air duct 32-1 and then led to the downstream low position, and the air flows with the wall at the two sides are blocked and compressed by the upper high-temperature air duct 32-1 and the inclined section 32-2-1 of the lower low-temperature air duct 32-2 and then enter the central compressed air duct 32-3. Thus, the wall-attached air flows of the four walls of the square air pipe 30 are all guided and compressed to form air flows without wall-attached air flows and then sent to the downstream, and the condition that the wall-attached air flows through gaps between the heating device and the square air pipe 30 and is not effectively disinfected is avoided.
Because the upper high temperature air guide pipe 32-1, the lower low temperature air guide pipe 32-2 and the central compressed air duct 32-3 have the structure that the air pipe cross sections are suddenly reduced, the air flow flowing through the upper high temperature air guide pipe 32-1, the lower low temperature air guide pipe 32-2 and the central compressed air duct 32-3 can be compressed and accelerated and then sprayed out from the minimum cross section at high speed, so that the coanda air flow is eliminated. When the high-speed air flow is sprayed to the high-temperature water heating section 14 of the densely distributed coil pipes, strong vortex is formed, and the heat exchange effect is enhanced. The temperature layering flow guiding device 32 eliminates the coanda airflow of the four walls of the square air pipe 30, and it is of great importance to avoid the coanda airflow and viruses possibly existing in the coanda airflow from entering the next section through gaps.
In one embodiment of the high-pollution exhaust multiple disinfection system of the invention, an air quality monitoring device 26 is arranged in the polluted building space A, the air quality monitoring device 26 comprises a third controller and an air quality sensor, an air quality parameter preset value is prestored in the third controller, and the air quality parameter preset value is suitable for starting and stopping the electric backflow prevention valve 7 and the high-efficiency variable frequency fan 10 to conduct disinfection or stop disinfection according to the comparison result of the real-time detection value of the air quality sensor and the air quality parameter preset value.
The invention relates to an embodiment of a high-pollution exhaust multiple disinfection method, which comprises 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, sequentially guiding the air in the building space polluted by the virus to an outdoor square air pipe 30 through a negative pressure metal ventilating pipe 2 in a pollution area, a high-resistance ventilating pipe 4 with a heat insulation layer and an outdoor negative pressure metal ventilating pipe 9, and electrifying and heating the ventilating pipe 4 with the heat insulation layer to kill the virus attached to the pipe wall at a high temperature; the square air pipe 30 is internally provided with a high-efficiency variable frequency fan 10, and the outlet end of the outdoor negative pressure metal ventilating pipe 9 is connected to the extraction opening 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 the electric backflow prevention valve 7 is automatically closed when the high-efficiency variable-frequency fan 10 is stopped, so that air flow is effectively prevented from flowing backwards from the outdoor negative-pressure metal ventilating duct 9 into the ventilating duct 4 with the heat-insulating layer; an electric pressure measuring relief valve 8 is connected to the outdoor negative pressure metal ventilation pipe 9 near 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, the electric pressure measuring relief valve 8 is opened to relieve pressure, so that air flow is prevented from flowing back into the high-resistance heat-insulating layer ventilation pipe 4 from the outdoor negative pressure metal ventilation pipe 9; (2) The airflow passing through the square air pipe 30 is subjected to at least one of the following sterilization treatment modes: high-temperature electric heating sterilization and high-temperature water heating sterilization. Specific embodiments of exhaust heating sterilization have been described in the above embodiments of the system of the present invention, and will not be described herein.
While the fundamental principles, principal features and advantages of the present invention have been shown and described, it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in 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 invention 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
The present invention is not limited to the above-mentioned embodiments, but is capable of modification and variation in all aspects, including those obvious to those skilled in the art, without departing from the spirit and scope of the present invention.
Claims (6)
1. The high-pollution exhaust multiple disinfection system 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 (2) is communicated with the inlet end of a high-resistance heat-insulating layer ventilation pipe (4), the outlet end of the high-resistance heat-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 extraction opening of a high-efficiency variable frequency fan (10); the two ends of the high-resistance ventilating duct (4) with the heat insulation and insulation layer are electrically connected to a power supply; the high-efficiency variable frequency fan (10) is sealed in Fang Fengguan (30);
A temperature layering flow guiding device (32) is arranged between the high-temperature electric heating section (13) and the high-temperature water heating section (14) in the Fang Fengguan (30); the temperature layering flow guiding device (32) is used for realizing the position replacement of upper and lower air flows so as to eliminate the coanda air flow and strengthen the heat exchange and avoid the influence of part of the air flow on the disinfection effect due to no heating;
The temperature layering flow guiding device (32) comprises an upper-layer high-temperature air guiding pipe (32-1), a lower-layer low-temperature air guiding pipe (32-2) and a central compression air duct (32-3); the air flow with the wall at the lower part of the air duct is compressed by reducing the section of the air duct through the lower low-temperature air duct (32-2) and then is led to the downstream high position, the air flow with the wall at the upper part of the air duct is compressed and accelerated through the upper high-temperature air duct (32-1) and then is led to the downstream low position, and the air flows with the wall at the two sides are blocked and compressed by the upper high-temperature air duct (32-1) and the inclined section (32-2-1) of the lower low-temperature air duct (32-2) and then enter the central compressed air duct (32-3) so as to eliminate the air flow with the wall and strengthen heat exchange;
The electric backflow prevention 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 pipeline (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 stopped, so that airflow is effectively prevented from flowing backwards from the outdoor negative pressure metal ventilating pipeline (9) into the high-resistance ventilating pipeline (4) with the heat-insulating layer;
The outdoor negative pressure metal ventilation pipe (9) is connected with an electric pressure measuring relief valve (8) near the joint of the outdoor negative pressure metal ventilation pipe (9) and the high-resistance ventilating pipe (4) with the heat insulation insulating layer, and the electric pressure measuring relief valve 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), the electric pressure measuring relief valve (8) is opened to relieve pressure, so that air flow is prevented from flowing from the outdoor negative pressure metal ventilation pipe (9) to the ventilating pipe (4) with the heat insulation insulating layer.
2. The high-pollution exhaust multiple disinfection system according to claim 1, wherein the high-temperature electric heating section (13) is arranged in the Fang Fengguan (30) close to the high-efficiency variable frequency fan (10), and an air flow electric heater is arranged in the high-temperature electric heating section (13) and is suitable for heating air flow to above 65 ℃.
3. The high-pollution exhaust multiple disinfection system according to claim 1, wherein the Fang Fengguan (30) is provided with the high-temperature water heating section (14) adjacent to the high-temperature electric heating section (13), the high-temperature water heating section (14) is internally provided with high-temperature water coils arranged in a staggered manner, and two ports of the high-temperature water coils are respectively communicated with two hot water pipes (24) to form a hot water circulation pipeline.
4. The high-pollution exhaust multiple disinfection system according to claim 1, wherein a temperature control module (29) is arranged on the high-resistance heat-insulating layer ventilation pipeline (4), and the temperature control module (29) comprises a first controller and a temperature sensor arranged on the inner wall of the high-resistance heat-insulating layer ventilation pipeline (4); the first controller is pre-stored with 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 temperature value so as to maintain the temperature of the high-resistance ventilating pipeline (4) with the heat insulation and insulation layer within the preset temperature range.
5. The high pollution exhaust multiple disinfection system according to claim 1, wherein a building space negative pressure monitoring device (28) is arranged in the polluted building space, and the building space negative pressure monitoring device (28) comprises a second controller and an air pressure sensor; the second controller is pre-stored with preset air pressure, and is suitable for adjusting the rotating speed of the high-efficiency variable-frequency fan (10) according to the comparison result of 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 within the preset air pressure range.
6. A high-pollution exhaust multiple disinfection method which is applied to the high-pollution exhaust multiple disinfection system as set forth in any one of claims 1-5; the method is characterized by comprising the following steps of:
Firstly, monitoring the air quality in a virus-polluted building space in real time, if the air quality does not reach the standard, sequentially leading the air in the virus-polluted building space to an outdoor square air pipe (30) through a negative pressure metal ventilating pipe (2) in a pollution area, a high-resistance ventilating pipe (4) with a heat insulation layer and an outdoor negative pressure metal ventilating pipe (9), and carrying out electrifying and heating on the high-resistance ventilating pipe (4) with the heat insulation layer to kill viruses attached to the pipe wall at a high temperature; an efficient variable frequency fan (10) is arranged in the Fang Fengguan (30), and the outlet end of the outdoor negative pressure metal ventilation pipe (9) is connected to the extraction opening of the efficient 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 pipeline (4) with the heat-insulating layer and the outdoor negative pressure metal ventilating pipeline (9), and the electric backflow prevention valve (7) is automatically closed when the high-efficiency variable frequency fan (10) is stopped, so that air flow is effectively prevented from flowing backwards from the outdoor negative pressure metal ventilating pipeline (9) into the ventilating pipeline (4) with the heat-insulating layer; an electric pressure measuring and relieving valve (8) is connected to the outdoor negative pressure metal ventilation pipe (9) near 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), the electric pressure measuring and relieving valve (8) is opened to relieve pressure so as to prevent air flow from flowing back into the high-resistance heat-insulating layer ventilation pipe (4) from the outdoor negative pressure metal ventilation pipe (9);
Step two, at least one of the following disinfection treatment modes is carried out on the air flow flowing through the step Fang Fengguan (30): high temperature electrical heating sterilization and high temperature water heating sterilization.
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