CN117180958A - Overhead vent pipe waste gas disinfection device and method based on cooperative advanced oxidation - Google Patents
Overhead vent pipe waste gas disinfection device and method based on cooperative advanced oxidation Download PDFInfo
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- CN117180958A CN117180958A CN202311350740.3A CN202311350740A CN117180958A CN 117180958 A CN117180958 A CN 117180958A CN 202311350740 A CN202311350740 A CN 202311350740A CN 117180958 A CN117180958 A CN 117180958A
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- outer shell
- exhaust gas
- vent pipe
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- 230000003647 oxidation Effects 0.000 title claims abstract description 35
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 35
- 239000002912 waste gas Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000010453 quartz Substances 0.000 claims abstract description 40
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000645 desinfectant Substances 0.000 claims abstract description 18
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
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- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 4
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- 238000010521 absorption reaction Methods 0.000 description 3
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The utility model discloses a top-extending vent pipe waste gas disinfection device based on co-advanced oxidation, which comprises a chassis, a center sleeve, a quartz ultraviolet lamp sleeve, an ozone type ultraviolet lamp, an ozone-free ultraviolet lamp, an ultrasonic atomizer, a disinfectant storage tank, an outer shell and a waste gas discharge pipe arranged at the top of the outer shell, wherein the center sleeve is provided with a bottom plate; the chassis is sleeved on the top-extending vent pipe, and the bottom of the outer shell is connected with the chassis; the quartz ultraviolet lamp sleeve is arranged in the outer shell, an outlet at the upper end of the quartz ultraviolet lamp sleeve is sealed by an ultraviolet lamp holder, the central sleeve is arranged in the quartz ultraviolet lamp sleeve, the lower end of the central sleeve is sleeved on the top-extending vent pipe, and an ozone type ultraviolet lamp is arranged between the central sleeve and the quartz ultraviolet lamp sleeve; the ozone-free ultraviolet lamp is arranged above the quartz ultraviolet lamp sleeve and is connected with the upper bottom surface of the ultraviolet lamp bracket; the inner wall of the outer shell is stuck with load nano TiO 2 Is made of an activated carbon fiber material layer. Compared with the prior device, the device can thoroughly disinfect the waste gas in the top-extending vent pipe, can remove the components causing odor, and does not influence the normal exhausting and air supplementing processes.
Description
Technical Field
The utility model relates to a top-extending vent pipe waste gas disinfection device and method based on co-advanced oxidation, and belongs to the technical field of building drainage and environmental protection.
Background
In a building drainage system, the inside of a drainage pipe is in a three-phase mixed flow state, and gas in the drainage system can escape into a room due to excessive positive pressure or negative pressure change in the drainage pipe in a drainage state. The investigation shows that most of the existing residential drainage systems have the problems of bad odor returning, large noise, water leakage, unsmooth drainage and the like. In fact, in addition to the problem of odor and peculiar smell caused by water seal damage in a drainage system of a building, the problem of indoor microbial pollution and even pathogen transmission caused by water seal damage in a drainage system in recent years is attracting attention. For example, in 2003, analysis of the cause of severe acute respiratory syndrome (SARS, "atypical) in large-scale outbreaks in hong kong garden cells shows that one of the most immediate causes is water seal drying, and the spreading of a large amount of aerosols containing viruses and germs, and the growing mosquitoes with germs, etc. in drainage pipelines and ventilation pipelines. Therefore, there is an urgent need to enhance the safety of drainage systems to prevent the spread of malodors and pathogenic bacteria.
There are two approaches to enhancing drainage system safety and preventing the spread of odors and pathogens in building drainage systems: firstly, the safety of the water seal is enhanced, secondly, ventilation is enhanced, and the air pressure fluctuation in the pipe is reduced. Ventilation and drainage are important, because sewage or wastewater needs to be exchanged with air in the atmosphere to balance pressure when the pipeline system is exhausted, the current building drainage pipelines are all provided with vent pipes which extend out of the roof, namely top-extending vent pipes, but potential pathogenic bacteria diffusion risks in exhaust gas exhausted by the top-extending vent pipes need to be paid attention, and especially the vent pipe exhaust gas of sewage and wastewater pipes of infectious departments in medical institutions need to be disinfected so as to prevent pathogenic bacteria diffusion.
Chinese patent application No. cn201620767218. X and patent application No. 201610574420.XThe ultraviolet disinfection device comprises a disinfection device arranged on the drainage top-extending vent pipe, wherein a baffle plate is arranged in a shell of the disinfection device, the baffle plate divides the disinfection device into a plurality of communicated spaces, and the flowing distance of the disinfected gas is increased; another tubular ultraviolet disinfection device is disclosed in the utility model patent of chinese patent application No. 201721685137.0. The prior art is based on ultraviolet ray to sterilize the exhaust gas of the overhead vent pipe, but the ultraviolet ray sterilization generally requires 15-30min, even if the air flow is stopped by the baffle plate in the limited sterilizer volume to prolong the residence time, the complete sterilization is difficult to ensure because the sufficient residence time is difficult to ensure, and the design of the prior art mainly considers the exhaust gas discharge and does not consider the outdoor atmosphere to supplement air in the pipe under the condition of negative pressure in the pipe, thus blocking or influencing the air supplementing process and easily influencing the air pressure stability in the pipe. From the aspect of preventing and controlling odor and pathogenic bacteria of a building drainage top-extending vent pipe, the ideal technical scheme should satisfy: (1) The enhanced safe disinfection and risk control of the potential pathogenic bacteria are realized within the limited contact time; (2) Can remove H in the exhaust gas 2 S，CH 4 Odor caused by the like; (3) The design of the method and the device does not have larger airflow resistance to influence exhaust gas discharge and also does not influence the outdoor atmosphere to supplement air in the pipe under the condition of negative pressure in the pipe. The existing disinfection devices do not meet these requirements.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and provides a top-extending vent pipe exhaust gas sterilizing device based on the cooperative advanced oxidation, which can thoroughly sterilize potential pathogenic bacteria in exhaust gas of the exhaust top-extending vent pipe and remove odor-causing H in the exhaust gas 2 S、CH 4 And the like, and the normal exhaust and air supplementing processes of the top extending vent pipe are not influenced.
The aim of the utility model can be achieved by the following technical scheme:
a top-extending vent pipe waste gas disinfection device based on co-advanced oxidation comprises a chassis, a center sleeve, a quartz ultraviolet lamp sleeve, an ultraviolet lamp holder, an ozone type ultraviolet lamp, an ozone-free ultraviolet lamp, an outer shell and a waste gas discharge pipe arranged at the top of the outer shell; the bottom of the outer shell is connected with a chassis, and the chassis is sleeved on the outer wall of the building drainage top-extending vent pipe; the quartz ultraviolet lamp sleeve is vertically arranged in the outer shell, an outlet at the upper end of the quartz ultraviolet lamp sleeve is sealed by an ultraviolet lamp holder, the central sleeve is coaxially arranged in the quartz ultraviolet lamp sleeve, the lower end of the central sleeve is tightly sleeved on the outer wall of the building drainage top-extending vent pipe, an ozone type ultraviolet lamp is arranged in an annular space formed between the central sleeve and the quartz ultraviolet lamp sleeve, and the top end of the ozone type ultraviolet lamp is connected with the ultraviolet lamp holder; the ozone-free ultraviolet lamp is arranged above the quartz ultraviolet lamp sleeve and is connected with the upper bottom surface of the ultraviolet lamp bracket;
a hood is arranged at the top outlet of the waste gas discharge pipe; the inner walls of the periphery and the top of the outer shell are adhered with load nano TiO 2 Is formed by the steps of (a) an activated carbon fiber material layer;
the exhaust gas sterilizing device of the top-extending vent pipe further comprises an ultrasonic atomizer and a disinfectant storage tank, wherein the ultrasonic atomizer and the disinfectant storage tank are arranged outside the outer shell, the ultrasonic atomizer is connected with the chassis, an aerosol outlet of the ultrasonic atomizer faces to the inside of the outer shell and is located under an annular space formed between the central sleeve and the quartz ultraviolet lamp sleeve.
In the utility model, the outer shell is preferably made of stainless steel, can be fixed with the chassis through the fixing screw, and is internally attached with nano TiO at the periphery and the top of the outer shell 2 An activated carbon fiber material; the active carbon fiber material can absorb part of peculiar smell substances and loaded TiO 2 Can form UV/TiO together with the ozone type ultraviolet lamp in the quartz ultraviolet lamp sleeve 2 Advanced oxidation systems, in the presence of UV and H 2 O 2 Simultaneous sterilization by synergistic UV/O formation 3 、UV/H 2 O 2 、UV/TiO 2 The advanced oxidation system synergistically enhances the disinfection effect in a limited space and residence time, and eliminates the potential microorganism transmission risk of waste gas; in addition, H in the drainage pipeline is oxidized by the strong oxidation of the advanced oxidation system 2 S and other substances are oxidized and adsorbed by the activated carbon fiberAnd the like, absorbing part of peculiar smell substances and gradually decomposing and removing the peculiar smell substances through subsequent advanced oxidation.
Further, stretch top breather pipe exhaust gas disinfection device still includes rectification board and defogging board that sets up in the shell body inside for intercept the aerial fog liquid droplet, avoid discharging into the atmosphere. The utility model discloses a waste gas exhaust pipe, including the exhaust gas exhaust pipe, the rectifying plate is platy structure, is located exhaust gas exhaust pipe under, the defogging plate is cylindric structure, is equipped with the passageway that the gas passed through on the section of thick bamboo wall, the top export of defogging plate is connected with exhaust gas exhaust pipe's entry, and the bottom of defogging plate is connected with the rectifying plate. Preferably, four walls of the demisting plate are composed of a plurality of annular guide plates which are equidistantly arranged and incline upwards by 30-45 degrees and vertical ribs used for connecting the annular guide plates.
Further, the center sleeve is made of stainless steel, and the pipe diameter is the same as or larger than the outer diameter of the top-extending vent pipe.
Further, the number of the ozone type ultraviolet lamps is more than two, and the ozone type ultraviolet lamps are uniformly distributed in an annular space formed between the central sleeve 1 and the quartz ultraviolet lamp sleeve. The ozone type ultraviolet lamp can simultaneously generate 254nm and 185nm wavelengths, and can sterilize and remove peculiar smell through ozone oxidation generated by 185nm UVC wave band while utilizing 254nm UVC dominant wavelength for sterilization.
Further, the disinfectant in the disinfectant storage tank is 3-8%H 2 O 2 Or 0.1% -0.6% of peracetic acid, and can generate sterilizing aerosol by ultrasonic. The ultrasonic atomizer has the function of automatic water supplementing of liquid level control, and forms disinfectant aerosol in the space between the central sleeve and the quartz ultraviolet lamp sleeve and forms disinfectant aerosol in the space between the quartz ultraviolet lamp sleeve and the outer shell body along with airflow through the bottom communication space to generate a disinfection effect.
Further, the area of the flow cross section of the annular space between the central sleeve and the quartz ultraviolet lamp sleeve is 2-6 times of the area of the cross section of the building drainage top-extending vent pipe. Is beneficial to ensuring enough disinfection time.
Further, the area of the flow cross section between the quartz ultraviolet lamp sleeve and the outer shell is 2-6 times of the cross section of the building drainage top-extending vent pipe, so that the influence on the air flow discharge of the building drainage top-extending vent pipe and the air supply of outdoor atmosphere to the inside of the pipe can be avoided.
A top-extending vent pipe waste gas disinfection method based on co-advanced oxidation adopts the top-extending vent pipe waste gas disinfection device based on co-advanced oxidation.
Compared with the prior art, the utility model has the following characteristics and beneficial effects:
(1) The utility model relates to a technical scheme that UV and H are adopted 2 O 2 While sterilizing, by forming a plurality of cooperative UV/O 3 、UV/H 2 O 2 、UV/TiO 2 The advanced oxidation system synergistically enhances the disinfection effect in a limited space and residence time, and eliminates the potential microorganism transmission risk of waste gas; in addition, H in the drainage pipeline is oxidized by the strong oxidation of the advanced oxidation system 2 S and other substances are oxidized, and part of peculiar smell substances are absorbed through the adsorption effect of activated carbon fibers and the like and are gradually decomposed and removed through subsequent advanced oxidation.
(2) The utility model relates to a top-extending vent pipe waste gas disinfection method based on co-advanced oxidation, which is characterized by small airflow resistance, no influence on the normal function of the top-extending vent pipe, no influence on the normal waste gas discharge, and no influence on the air supply of outdoor atmosphere into the pipe under the condition of negative pressure in the pipe.
(3) The method and the corresponding device related by the utility model can be operated in combination according to the needs, and a disinfectant atomization system can not be started in low-risk places and time periods, and mainly depends on ultraviolet disinfection and UV/TiO 2 And UV/O 3 Advanced oxidation cooperates with disinfection to reduce costs, and disinfectant atomizing systems can be activated at high risk sites or periods to ensure disinfection and control microbial risk.
Drawings
FIG. 1 is a schematic view of the exhaust gas disinfection apparatus of the top-extending vent pipe based on the co-advanced oxidation of embodiment 1;
FIG. 2 is a test result of disinfection effect of the top-extending vent pipe exhaust gas disinfection device based on co-advanced oxidation of example 1;
in fig. 1: 1-a central sleeve; 2-quartz ultraviolet lamp sleeve; 3-an outer shell; 4-ultrasoundAn atomizer; 5-a disinfectant storage tank; 6-ultraviolet lamp holders; 7-ozone type ultraviolet lamp; 8-an ozone-free ultraviolet lamp; 9-Supported nano TiO 2 Is formed by the steps of (a) an activated carbon fiber material layer; 10-rectifying plates; 11-demisting plates; 12-an exhaust gas discharge pipe; 13-rain-proof hood; 14-chassis; 15-building drainage top-extending vent pipe.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described below with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1, an exhaust gas sterilizing device based on a top-extending vent pipe in cooperation with advanced oxidation comprises a chassis 14, a center sleeve 1, a quartz ultraviolet lamp sleeve 2, an ultraviolet lamp bracket 6, an ozone-free ultraviolet lamp 7, an ozone-free ultraviolet lamp 8, an outer shell 3 and an exhaust gas discharge pipe 12 arranged at the top of the outer shell; the bottom of the outer shell 3 is connected with a chassis 14, and the chassis 14 is sleeved on the outer wall of the building drainage top-extending vent pipe; the quartz ultraviolet lamp sleeve 2 is vertically arranged in the outer shell 3 and is connected with the chassis 14 through a supporting rod, an upper end outlet of the quartz ultraviolet lamp sleeve 2 is sealed by an ultraviolet lamp bracket 6, the central sleeve 1 is coaxially arranged in the quartz ultraviolet lamp sleeve 2, the lower end of the central sleeve 1 is tightly sleeved on the outer wall of a building drainage top-extending vent pipe, 4 ozone type ultraviolet lamps 7 which are 8w and uniformly distributed are arranged in an annular space formed between the central sleeve 1 and the quartz ultraviolet lamp sleeve 2, and the top end of the ozone type ultraviolet lamp 7 is connected with the ultraviolet lamp bracket 6; the ozone-free ultraviolet lamp 8 is arranged above the quartz ultraviolet lamp sleeve 2 and is connected with the upper bottom surface of the ultraviolet lamp bracket 6;
a hood 13 is arranged at the top outlet of the exhaust gas discharge pipe 12; the load nano TiO is attached to the inner walls of the periphery and the top of the outer shell 3 2 An activated carbon fiber material layer 9 of (a); the exhaust gas sterilizing device of the top-extending vent pipe further comprises an ultrasonic atomizer 4 and a disinfectant storage tank 5, wherein the ultrasonic atomizer 4 and the chassis 14 are arranged outside the outer shell body 3, an aerosol outlet of the ultrasonic atomizer 4 faces to the inside of the outer shell body 3 and is located under an annular space formed between the central sleeve 1 and the quartz ultraviolet lamp sleeve 2.
The exhaust gas sterilizing device of the top-extending vent pipe further comprises a rectifying plate 10 and a demisting plate 11 which are arranged in the outer shell 3 and used for intercepting aerosol droplets and avoiding being discharged into the atmosphere. The rectifying plate is of a plate-shaped structure and is positioned right below the exhaust gas discharge pipe 12, the demisting plate is of a cylindrical structure, the cylinder wall is composed of 6 annular guide plates which are equidistantly arranged and incline upwards by 30-45 degrees and four vertical ribs used for connecting the annular guide plates, the top outlet of the demisting plate 11 is connected with the inlet of the exhaust gas discharge pipe 12, and the bottom of the demisting plate 11 is connected with the rectifying plate 10.
In the embodiment, the caliber of the building drainage top-extending vent pipe is De110, and the central sleeve is of a cylindrical structure of De110 and is made of stainless steel; the quartz ultraviolet lamp sleeve 2 has a diameter of 200mm and a height of 380mm, and the outer shell 3 (without the top and the exhaust gas discharge pipe 12) has a diameter of 500mm and a height of 650mm and is made of stainless steel; the exhaust gas discharge pipe 12 has a length of 15cm and a bore of De110.
The disinfectant in the disinfectant tank 5 is 8% H 2 O 2 The sterilizing aerosol can be generated by ultrasound. The ultrasonic atomizer 4 has the function of automatic water supplementing of liquid level control, forms disinfectant aerosol in the space between the central sleeve 1 and the quartz ultraviolet lamp sleeve 2 and forms disinfectant aerosol in the space between the quartz ultraviolet lamp sleeve 2 and the outer shell 3 along with airflow through the bottom communication space to generate a disinfection effect.
In this example, nano TiO is supported 2 The preparation method of the activated carbon fiber material is as follows:
1) Putting 270mL of tetrabutyl titanate into a 1000mL beaker, then transferring into 230mL of absolute ethyl alcohol, and stirring and mixing uniformly to obtain a tetrabutyl titanate solution;
2) Mixing 230mL of absolute ethanol, 33mL of concentrated hydrochloric acid (37%) and 27mL of distilled water at room temperature, dripping the obtained mixed solution into tetrabutyl titanate solution at a speed of 1 drop/s at a stirring speed of 100r/min, and continuing stirring for 30 minutes after dripping to obtain yellowish uniform TiO 2 Aging the sol at room temperature for 24 hours for standby;
3) Soaking the activated carbon fiber felt in the sol prepared in the step 2) for 10min by adopting a soaking method, taking out, airing, drying in a 200 ℃ oven for 10min, and weighingCarrying out repeated impregnation and loading for 3 times, airing, then placing in a muffle furnace, heating to 550 ℃ at the speed of 10 ℃/min, and carrying out heat preservation and heat treatment for 2 hours to obtain the loaded nano TiO 2 Is a felt material of activated carbon fiber.
To verify the effect of the extended roof vent exhaust gas disinfection device based on the co-advanced oxidation of example 1 and to reduce errors caused by complex microorganism types, low concentration and unstable conditions in the actual places. The experiment adopts a bacterial suspension separated from domestic sewage culture in a laboratory sewage treatment device, the bacterial suspension is atomized by a 20w small ultrasonic atomization device, atomized gas enters the device of the embodiment 1 through a stretched top breather pipe 15 for disinfection treatment, and the air speed is controlled by a small speed-regulating exhaust fan at the top of the device, so that the aerosol is respectively controlled to stay in the device for different time (0.5-8 min). Tests are respectively carried out under two conditions of starting the ultrasonic atomizer 4 and not starting the ultrasonic atomizer 4, aerosol is collected into physiological saline absorption liquid in an absorption tube through a polywound QC-2A double-gas-path atmospheric sampling instrument before and after disinfection, 0.5-10 mL of the collected absorption liquid is inoculated on agar culture medium plates, 3 plates are parallelly inoculated (diluted inoculation when the concentration is high) on each sample, the plates are placed in a constant-temperature biochemical incubator for culturing at 37 ℃ for 24 hours, microbial colony counting is carried out, disinfection efficiency is calculated, the disinfection efficiency expressed by the percentage is high due to the fact that the concentration of bacterial liquid is high, the difference is unfavorable to be seen, and the results are shown in figure 2.
FIG. 2 is a test result of the disinfection effect of the exhaust gas disinfection device of example 1 based on the co-advanced oxidation, it can be seen that better disinfection effect can be obtained when the ultrasonic atomizer 4 is turned on, but in the initial stage, the difference of the disinfection efficiency of whether to turn on the ultrasonic atomizer is not large, which may be mainly due to UV and UV/TiO 2 Rapid sterilization, while H 2 O 2 The action time is slower 。 Such as microorganisms less than 2000cfu/m in the air according to living environment 3 For reference, the residence time of the corresponding device was about 2.0min, but because of the aerosol prepared by the ultrasonic bacterial suspension in the test of the device, the concentration of bacteria in the aerosol is higher and not presentThe method is equivalent to the conditions in the actual environment, the test only verifies the effectiveness of the method, and the residence time is optimized pertinently according to the environmental conditions in the actual application.
The embodiments described above are intended to enable those skilled in the art to make and use the utility model. It will be apparent to those skilled in the art that modifications may be made to these embodiments and that the general principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the principle of the present utility model, should make improvements and modifications without departing from the scope of the present utility model.
Claims (9)
1. The exhaust gas sterilizing device based on the co-advanced oxidation and the top extending vent pipe is characterized by comprising a chassis (14), a center sleeve (1), a quartz ultraviolet lamp sleeve (2), an ultraviolet lamp bracket (6), an ozone ultraviolet lamp (7), an ozone-free ultraviolet lamp (8), an outer shell (3) and an exhaust gas discharge pipe (12) arranged at the top of the outer shell; the bottom of the outer shell (3) is connected with a chassis (14), and the chassis (14) is sleeved on the outer wall of the building drainage roof-extending vent pipe; the quartz ultraviolet lamp sleeve (2) is vertically arranged in the outer shell (3), an outlet at the upper end of the quartz ultraviolet lamp sleeve (2) is sealed by an ultraviolet lamp holder (6), the center sleeve (1) is coaxially arranged in the quartz ultraviolet lamp sleeve (2), the lower end of the center sleeve (1) is tightly sleeved on the outer wall of a building drainage top-extending vent pipe, an ozone type ultraviolet lamp (7) is arranged in an annular space formed between the center sleeve (1) and the quartz ultraviolet lamp sleeve (2), and the top end of the ozone type ultraviolet lamp (7) is connected with the ultraviolet lamp holder (6); the ozone-free ultraviolet lamp (8) is arranged above the quartz ultraviolet lamp sleeve (2) and is connected with the upper bottom surface of the ultraviolet lamp bracket (6);
a hood (13) is arranged at the top outlet of the waste gas discharge pipe (12); the periphery and the top inner wall of the outer shell (3) are attached with load nano TiO 2 Is formed by the steps of (a) an activated carbon fiber material layer;
the exhaust gas sterilizing device for the top-extending vent pipe further comprises an ultrasonic atomizer (4) and a disinfectant storage tank (5) which are arranged outside the outer shell body (3), wherein the ultrasonic atomizer (4) is connected with the chassis (14), an aerosol outlet of the ultrasonic atomizer (4) faces the inner part of the outer shell body (3) and is located under an annular space formed between the central sleeve (1) and the quartz ultraviolet lamp sleeve (2).
2. The exhaust gas disinfection device for a top-extending vent pipe based on co-advanced oxidation according to claim 1, further comprising a rectifying plate (10) and a demisting plate (11) which are arranged in the outer shell (3), wherein the rectifying plate is of a plate-shaped structure and is positioned right below the exhaust gas discharge pipe (12), the demisting plate is of a cylindrical structure, a channel through which gas passes is formed in the cylinder wall, the top outlet of the demisting plate is connected with the inlet of the exhaust gas discharge pipe, and the bottom of the demisting plate is connected with the rectifying plate.
3. The exhaust gas disinfection device of a top-extending vent pipe based on co-advanced oxidation as claimed in claim 2, wherein four walls of the demister plate are composed of a plurality of annular guide plates which are equidistantly arranged and incline upwards by 30-45 degrees and vertical ribs for connecting the annular guide plates.
4. The overhead breather pipe exhaust gas sterilization apparatus based on co-advanced oxidation according to claim 1, wherein said central sleeve is stainless steel.
5. The exhaust gas disinfection apparatus of a top-extending ventilating pipe based on co-advanced oxidation according to claim 1, wherein the number of ozone type ultraviolet lamps (7) is more than two, and the ozone type ultraviolet lamps (7) are uniformly distributed in an annular space formed between the central sleeve (1) and the quartz ultraviolet lamp sleeve (2).
6. The overhead breather pipe exhaust gas disinfection apparatus based on co-advanced oxidation according to claim 1, wherein the disinfectant in said disinfectant tank is 3% -8%H 2 O 2 Or 0.1% -0.6% of peracetic acid.
7. The exhaust disinfection apparatus of a top-extending ventilating pipe based on co-advanced oxidation according to claim 1, characterized in that the area of the flow cross section of the annular space between the central sleeve (1) and the quartz ultraviolet lamp sleeve (2) is 2-6 times the area of the cross section of the top-extending ventilating pipe of the building drainage.
8. The exhaust disinfection apparatus for a top-extending ventilating pipe based on co-advanced oxidation according to any one of claims 1 to 7, wherein the cross-sectional area of the flow between the quartz ultraviolet lamp sleeve (2) and the outer housing (3) is 2 to 6 times the cross-sectional area of the top-extending ventilating pipe for building drainage.
9. A method for disinfecting exhaust gas of a top-extending vent pipe based on co-advanced oxidation, characterized in that the top-extending vent pipe exhaust gas disinfecting device based on co-advanced oxidation according to any one of claims 1 to 8 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311350740.3A CN117180958A (en) | 2023-10-18 | 2023-10-18 | Overhead vent pipe waste gas disinfection device and method based on cooperative advanced oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311350740.3A CN117180958A (en) | 2023-10-18 | 2023-10-18 | Overhead vent pipe waste gas disinfection device and method based on cooperative advanced oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117180958A true CN117180958A (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311350740.3A Pending CN117180958A (en) | 2023-10-18 | 2023-10-18 | Overhead vent pipe waste gas disinfection device and method based on cooperative advanced oxidation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117180958A (en) |
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2023
- 2023-10-18 CN CN202311350740.3A patent/CN117180958A/en active Pending
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