CN111851713A - Maintenance-free deodorization type sewage pipeline ventilation facility - Google Patents
Maintenance-free deodorization type sewage pipeline ventilation facility Download PDFInfo
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- CN111851713A CN111851713A CN202010530278.5A CN202010530278A CN111851713A CN 111851713 A CN111851713 A CN 111851713A CN 202010530278 A CN202010530278 A CN 202010530278A CN 111851713 A CN111851713 A CN 111851713A
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- well
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/08—Ventilation of sewers
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- 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/088—Radiation using a photocatalyst or photosensitiser
-
- 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultra-violet radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Abstract
The utility model provides a non-maintaining deodorization type sewer line facility of breathing freely, includes the ventilative well room, and the ventilative well room is located the pipeline under pressure top, its characterized in that deodorization device is established at ventilative well room top, set up removable adsorption medium module in the deodorization device, convex lens are installed to the deodorization device outside, and the medium intensifies in making the deodorization device through convex lens focus, realizes the thermal regeneration of medium among the deodorization device. The invention can be applied to sewage pressure conveying pipelines, and the unpowered adsorption deodorization device is arranged at the top of the vent well, so that the influence of odor scattered from the vent well on the surrounding environment is reduced, the operation safety of a sewage pressure pipeline is ensured, and the threat of odor, aerosol and the like on the health of surrounding residents is eliminated.
Description
Technical Field
The invention belongs to the technical field of municipal sewage pipeline auxiliary facilities, and particularly relates to a maintenance-free deodorization type sewage pipeline ventilation facility.
Background
A large amount of gas exists in a large-scale sewage pressure pipeline, phenomena such as water hammer and surge can be generated when a sewage conveying pump station operates abnormally, and the damage can be aggravated by the gas, so that the sewage pipeline is broken, and secondary disasters such as overflow of sewage are generated. In engineering, the release of gas in sewage is generally realized by arranging a gas-permeable well on a sewage pipeline, so that the pipeline and other accessory facilities are prevented from being damaged by the gas.
As the conveying medium in the pipeline is sewage, when the liquid level in the ventilating well fluctuates, the malodorous gas in the well is scattered and overflows from the ventilating well, and the malodorous gas is combined with viruses, bacteria, solid particles and the like to form aerosol, so that the gas-liquid type ventilating well has terrible pathogenicity and even lethality, and has stronger transmission concealment and unpredictability. The odor emitted by the sewage pipeline ventilating well can disturb people moving nearby, and has potential threat to the life health of surrounding residents, thereby forming a wide 'proximity effect'. The virus (such as 'novel coronavirus') has the possibility of aerosol transmission, the path of virus dissipation and exposure exists in each link from a closestool to a municipal pipe network and then to a sewage treatment plant, and the municipal ventilation well is used as a facility which is most easily contacted by common citizens, so that the potential safety hazard is the greatest. But considering the operation and maintenance safety and the incapability of providing water supply and power supply facilities matched with the ventilation well, the ventilation well cannot be provided with a deodorization device at the present stage.
Therefore, the maintenance-free deodorization type sewage pipeline ventilation facility is developed, the influence of the ventilation well on the surrounding environment can be reduced, the 'neighbor effect' can be broken, the ventilation and air supply functions of the ventilation well are guaranteed, the operation safety of a sewage conveying pipeline is guaranteed, the adverse environment influence caused by the dissipation of the stink of the ventilation well is reduced, the generation of pathogenic aerosol is prevented, and the urban safety and the health of people are guaranteed.
Disclosure of Invention
The invention aims to provide a maintenance-free deodorization type sewage pipeline ventilation facility which is used as a matched facility of a sewage pressure conveying pipeline, can eliminate the influence of the scattered overflow of deodorization gas on the surrounding environment, eliminates safety risks and reduces the workload and cost of operation and maintenance of a sewage pipeline.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a non-maintaining deodorization type sewer line facility of breathing freely, includes the ventilative well room, and the ventilative well room is located the pipeline under pressure top, its characterized in that deodorizing device is established at ventilative well room top, set up removable adsorption medium module in the deodorizing device, convex lens are installed to the deodorizing device outside, and the medium intensifies in making deodorizing device through convex lens focus, realizes the thermal regeneration of medium among the deodorizing device, and deodorizing device imports and exports the foul smell concentration monitoring devices for detect the foul smell concentration that deodorizing device imports and exports.
Further, the deodorization device is fixed with the well chamber of the ventilation well by adopting a chemical bolt or other fasteners.
Furthermore, the medium in the deodorization device adsorbs acidic pollutants, organic matters and toxic substances in the gas, and the adsorption efficiency is more than or equal to 90%; the deodorization device has a flow velocity of gas passing through the device not more than 2.5m/s and a resistance of the device not more than 50 Pa.
Furthermore, the deodorization device adopts a frame type structure, convex lenses are arranged on side plates on the periphery of the deodorization device, a reserved hole is reserved near the focus of the convex lens in the middle of each side plate, and heat of the convex lens is transferred to an internal medium; the reserved hole is provided with light-transmitting flat glass, so that heat conduction is ensured, and odor is prevented from diffusing; the reinforcing ribs are arranged on the peripheral side plates to ensure the strength of the side plates; the top plate part is communicated with the atmosphere, so that the ventilation effect of the ventilation well is ensured.
Furthermore, the well chamber of the ventilation well adopts a stainless steel structure or a glass fiber reinforced plastic structure, or adopts a concrete structure to line glass fiber reinforced plastic, line stainless steel or anticorrosive paint.
Furthermore, the adsorption medium module of the deodorization device is also connected with the ultraviolet disinfection module or the photochemical module in series, so that the virus inactivation rate and the odor removal effect are improved.
Furthermore, the maintenance-free deodorization type sewage pipeline ventilation facility comprises an equipment power supply system, the equipment power supply system comprises a storage battery and a solar panel, the storage battery and the solar panel are connected through a connecting cable, the storage battery is charged by the solar panel, the solar panel is installed on the outer wall of the ventilation well chamber, and the connecting cable is embedded in the well wall of the ventilation well chamber.
Furthermore, the maintenance-free deodorization type sewage pipeline ventilation facility comprises an intelligent monitoring system, the intelligent monitoring system comprises a liquid level meter arranged in a ventilation well and an odor concentration monitoring device positioned at an inlet and an outlet of the deodorization device, and when the intelligent monitoring system monitors that the liquid level exceeds the maximum operation liquid level, the monitoring system sends a signal to a pipe transportation unit to inform an operator to adjust the operation condition of a trunk line; the intelligent monitoring system judges the running condition of the deodorizing device according to the odor concentration detection device at the air inlet and air outlet of the deodorizing device, and when the odor removal rate of the device does not meet the requirement, the intelligent monitoring system informs operation and maintenance personnel to overhaul or replace the medium module in the deodorizing device.
Furthermore, the ventilated well chamber is provided with an inspection manhole, the inspection manhole is composed of a pre-buried wall pipe and a pressure cover plate and is used for entering and exiting of workers and equipment during manual maintenance and inspection; the installation height of the inspection manhole is close to the designed average liquid level, and the pressure bearing capacity of the manhole cover plate is greater than the highest operating liquid level; the inspection manhole can be installed on the well wall of the built gas permeable well and can also be applied to a newly-built gas permeable well.
The invention can be applied to sewage pressure conveying pipelines, and the unpowered adsorption deodorization device is arranged at the top of the well chamber of the vent well, so that the influence of odor scattered by the vent well on the surrounding environment is reduced, the operation safety of a sewage pressure pipeline is ensured, and the threat of odor, aerosol and the like on the health of surrounding residents is eliminated. The invention has simple structure, low cost and wide application range, realizes the environmental protection of the ventilation well only by increasing a small amount of investment, breaks the adjacent effect and eliminates the core potential safety hazard of the operation of the sewage pressure pipeline. The invention utilizes the solar radiation to recycle the adsorption material in the deodorization device, achieves the aim of maintenance-free deodorization type breathable facilities, realizes the fine management of the subsidiary facilities of the sewage pipeline, and maximizes the environmental benefit and the engineering benefit.
The invention has the following advantages:
1. the invention has simple structure, ensures the ventilation function of the ventilation well and reduces the influence of odor on the periphery.
2. The medium in the ventilating well deodorizing device is recycled by utilizing solar irradiation, and the maintenance-free ventilating well is realized.
3. The power supply of the equipment depends on clean renewable energy, so that the running cost is saved, an external power supply is avoided, and the implementation difficulty is reduced.
4. Realize intelligent control, make things convenient for managers to monitor ventilative well behavior.
5. The invention has wide application range, can be applied to the reconstruction of the built gas permeable well and the newly-built gas permeable well, and is not limited by the form, the material and the surrounding environment of the gas permeable well.
Drawings
Fig. 1 is a schematic structural view of a maintenance-free deodorization type sewage pipe ventilation facility according to the present invention.
Fig. 2 is a schematic view of a deodorizing device for a maintenance-free deodorizing type sewage pipeline ventilating facility according to the present invention.
Fig. 3 is a top view schematically illustrating a maintenance-free deodorization type sewage pipe ventilating facility according to the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a maintenance-free deodorizing type sewage pipeline ventilating facility, which mainly comprises:
The ventilation well comprises a ventilation well chamber 1, a deodorization device 2, an inspection manhole 3, a liquid level meter 4, a convex lens 5, a solar panel 6, an intelligent control system 7, a storage battery 8 and the like. Ventilative well room 1 is located sewage pressure pipe top, and deodorizing device 2 is located ventilative well room top, and level gauge 4 is installed in ventilative well, and inspection manhole 3 is installed on the ventilative well wall of a well, and solar panel 6 is installed and all is set up at ventilative well periphery in ventilative well outer wall, intelligent monitoring system 7, battery 8.
The well chamber 1 of the air permeable well is positioned above a sewage pipeline, and the well chamber 1 of the air permeable well can adopt various forms such as stainless steel, glass fiber reinforced plastic or concrete lining anti-corrosion materials and the like; the shape of the well chamber can adopt various forms such as round, square, triangle, polygon and the like;
the deodorization device 2 consists of a device bottom plate 21, an adsorption medium module 22, a device top plate 23 and a device side plate 24; wherein convex lens 5 is embedded on the device side plate 24, and a hole 25 is reserved in the middle of the side plate, and a reinforcing rib 26 is arranged on the side plate for ensuring the strength of the side plate.
The deodorizing device 2 is positioned at the top of the well chamber of the vent well and is fixed with the well chamber of the vent well through chemical bolts or other fasteners. The deodorization device 2 treats the scattered and overflowed gas in the ventilation well in a unpowered adsorption mode; a replaceable adsorption medium module 22 is arranged in the deodorization device 2, the medium is made of activated carbon materials with high adsorption rate, the medium can adsorb acidic pollutants, organic matters and most toxic substances in gas, and the adsorption efficiency of the adsorption medium module is more than or equal to 90%; when the flow speed of the passing gas of the deodorization facility does not exceed 2.5m/s, the resistance of the device is not more than 50 Pa; furthermore, the deodorization device can be connected with a physical and chemical disinfection module such as an ultraviolet disinfection module, a photolysis disinfection module and the like in series to improve the virus inactivation rate and the odor removal effect besides the adsorption medium module.
The disinfection modules connected in series in the deodorization device 2 can use disinfection modules in physical and chemical modes such as an ultraviolet disinfection module, a photolysis disinfection module and the like. The available equipment can generate a large amount of ultraviolet rays and a small amount of extreme wave light, so that pollutants are cracked into simple compounds, and toxins released by bacteria and viruses are decomposed and harmlessly treated.
The side plate 24 of the device is provided with an embedded convex lens, the local temperature of the medium reaches 120-180 ℃ by focusing solar heat in sunny weather through the convex lens, organic matters adsorbed on the surface of the medium are carbonized and decomposed at high temperature, and thermal regeneration of the medium near the focus of the convex lens is realized; the thermal regeneration of the medium 22 in the deodorizing means is further achieved by utilizing the concentration gradient migration law of the pollutants on the adsorption medium. Because the ventilation well has the characteristic of intermittence, the medium in the unpowered adsorption device does not need to continuously operate to adsorb odor, and the maintenance-free operation of the deodorization device is realized through alternate adsorption-regeneration.
The outer frame of the deodorizing device 2 adopts a frame structure, and the bottom plate 21, the top plate 23 and the side plates 24 can be made of stainless steel or high-temperature-resistant and corrosion-resistant plastic materials; the bottom plate 21 of the device is of a porous structure, so that the air flow of the ventilation well is ensured to rise to be smooth; the top plate 23 of the device is provided with a cross-shaped cover plate, the cover plate is in a glass fiber reinforced plastic grid form, ventilation, high strength and corrosion resistance are guaranteed, meanwhile, personnel can conveniently operate and move in the same direction when the adsorption medium module is replaced or maintained, and four regions which are not covered by other cover plates are directly communicated with the atmosphere, so that smooth ventilation of the ventilation well is guaranteed; the size of the middle preformed hole 25 of the side plate 24 is about 10 multiplied by 10 to 20 multiplied by 20cm, and the side length is about 1/8 to 1/10 of the height of the device. The middle of the preformed hole 25 is provided with light-transmitting flat glass, so that heat conduction is ensured, and odor is prevented from diffusing.
The storage battery 8 and the solar panel 6 form a power supply system for supplying power to the disinfection module in the deodorization device 2, removing odor and reducing viruses in aerosol. Solar panel 6 installs on ventilative well outer wall, does not occupy extra space, if do not establish ties disinfection module in deodorizing device 2, then this ventilative facility need not to set up power generation facility 6 and battery 8.
The intelligent monitoring system 5 is used for monitoring the liquid level in the ventilating well, the efficiency of the deodorization facility and the like, and controlling the operation of the facility; when the ventilation well is in an abnormal working condition, informing an operation management unit to carry out on-site maintenance;
the liquid level meter 4 is used for monitoring the liquid level in the ventilating well, and when the liquid level is higher than the highest liquid level or lower than the lowest liquid level for more than 30 minutes, the intelligent monitoring system 5 sends a signal to an operation management unit and records information in the system;
deodorizing device imports and exports and sets up foul smell concentration monitoring devices, intelligent monitoring system 5 admit air according to deodorizing device 2 and judge deodorizing device 2 behavior with the department's foul smell concentration detection device of giving vent to anger, when the unsatisfied requirement of device foul smell clearance, intelligent monitoring system 5 can inform fortune dimension personnel to overhaul or change deodorizing device 2 interior medium module.
The inspection manhole 3 consists of a wall pipe and a pressure cover plate and is used for the access of workers and equipment during manual maintenance; the maintenance manhole 3 is installed and is close to the designed average liquid level of a well chamber of the ventilation well, and the pressure bearing of the cover plate is greater than the highest operation liquid level; the inspection manhole 7 can be installed on the well wall of the built gas permeable well and can also be applied to a newly-built gas permeable well.
The maintenance-free deodorization type sewage pipeline ventilating device is simple in structure and low in cost, reduces the influence of a ventilating well on the surrounding environment and the safety and health risks, and eliminates the potential safety hazard of pressure pipeline operation. The medium in the ventilating well deodorizing device is recycled by utilizing solar energy, and the safe and intelligent operation of the ventilating well under the condition of maintenance-free or low maintenance is realized. The ventilation device has wide application range, is not limited by factors such as peripheral construction conditions and the like, and can realize the maximization of engineering benefit by only increasing a small amount of investment compared with the traditional ventilation well.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. The utility model provides a non-maintaining deodorization type sewer line facility of breathing freely, includes the ventilative well room, and the ventilative well room is located the pipeline under pressure top, its characterized in that deodorizing device is established at ventilative well room top, set up removable adsorption medium module in the deodorizing device, convex lens are installed to the deodorizing device outside, and the medium intensifies in making deodorizing device through convex lens focus, realizes the thermal regeneration of medium among the deodorizing device, and deodorizing device imports and exports the foul smell concentration monitoring devices for detect the foul smell concentration that deodorizing device imports and exports.
2. The maintenance-free odor removal type sewer scavenger installation of claim 1, wherein said odor removal means is secured to the well chamber of the scavenger well by chemical bolts or other fasteners.
3. The vent facility for sewer piping of maintenance-free odor removal type as claimed in claim 1, wherein said deodorizing means inner medium adsorbs acidic contaminant, organic matter and toxic substance in the gas with an adsorption efficiency of 90% or more; the deodorization device has a flow velocity of gas passing through the device not more than 2.5m/s and a resistance of the device not more than 50 Pa.
4. The vent facility for a non-maintaining deodorizing type sewer pipe according to claim 1, wherein the deodorizing device is of a frame type structure, the peripheral side plates are provided with convex lenses, a reserved hole is reserved near the focus of the convex lens in the middle of the side plate, the heat of the convex lens is transferred to the internal medium, organic matters adsorbed on the surface of the medium are carbonized and decomposed at high temperature, and the self-renewal of the adsorbing medium is realized; the reserved hole is provided with light-transmitting flat glass, so that heat conduction is ensured, and odor is prevented from diffusing; the reinforcing ribs are arranged on the peripheral side plates to ensure the strength of the side plates; the bottom plate and the top plate of the device can be ventilated and communicated with the atmosphere, so that the ventilation effect of the ventilation well is ensured.
5. The maintenance-free deodorization type sewer ventilation facility as claimed in claim 1, wherein said ventilation well chamber is made of stainless steel structure, glass fiber reinforced plastic structure, or concrete structure lining glass fiber reinforced plastic, lining stainless steel or anticorrosive paint.
6. The vent facility of claim 1, wherein the adsorption media module of the deodorizing device is further connected in series with the uv disinfection module or the photochemical module to increase the virus inactivation rate and the odor removal effect.
7. The maintenance-free odor-removal type sewage pipeline ventilation facility according to claim 1, wherein the maintenance-free odor-removal type sewage pipeline ventilation facility comprises an equipment power supply system, the equipment power supply system comprises a storage battery and a solar panel, the storage battery and the solar panel are connected through a connecting cable, the storage battery is charged by the solar panel, the solar panel is installed on the outer wall of the ventilation well chamber, and the connecting cable is embedded in the well wall of the ventilation well chamber.
8. The maintenance-free odor removal type sewer line ventilation facility of claim 1, wherein the maintenance-free odor removal type sewer line ventilation facility comprises an intelligent monitoring system, the intelligent monitoring system comprises a liquid level meter arranged in the ventilation well and an odor concentration monitoring device positioned at an inlet and an outlet of the odor removal device, when the intelligent monitoring system monitors that the liquid level exceeds the maximum operation liquid level, the monitoring system sends a signal to a pipe transportation unit to inform an operator to adjust the main line operation condition; the intelligent monitoring system judges the running condition of the deodorizing device according to the odor concentration detection device at the air inlet and air outlet of the deodorizing device, and when the odor removal rate of the device does not meet the requirement, the intelligent monitoring system informs operation and maintenance personnel to overhaul or replace the medium module in the deodorizing device.
9. The maintenance-free deodorizing type sewer ventilating facility according to claim 1, wherein said ventilating well chamber is provided with an inspection manhole, said inspection manhole is composed of a pre-buried wall pipe and a pressure cover plate, and is used for the entry and exit of workers and equipment during manual maintenance and inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530278.5A CN111851713A (en) | 2020-06-11 | 2020-06-11 | Maintenance-free deodorization type sewage pipeline ventilation facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010530278.5A CN111851713A (en) | 2020-06-11 | 2020-06-11 | Maintenance-free deodorization type sewage pipeline ventilation facility |
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| CN111851713A true CN111851713A (en) | 2020-10-30 |
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| CN202010530278.5A Pending CN111851713A (en) | 2020-06-11 | 2020-06-11 | Maintenance-free deodorization type sewage pipeline ventilation facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982640A (en) * | 2021-04-28 | 2021-06-18 | 瑞燃(上海)环境工程技术有限公司 | Built-in deodorization device and technology for ventilation well |
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| JPH0754392A (en) * | 1993-08-18 | 1995-02-28 | Asahi Tec Corp | Malodorous gas venting equipment in sewerage facility |
| CN205133337U (en) * | 2015-08-28 | 2016-04-06 | 天津天绿健科技有限公司 | Biological reaction device for sewage treatment |
| CN107989159A (en) * | 2017-11-28 | 2018-05-04 | 上海市城市建设设计研究总院（集团）有限公司 | The ventilative pressure inspection shaft of a high position |
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| CN208088487U (en) * | 2018-01-08 | 2018-11-13 | 唐山学院 | A kind of outdoor sewage winding shaft that pernicious gas is detected, removed automatically |
| CN209428340U (en) * | 2018-10-18 | 2019-09-24 | 河北旭杰环境工程有限公司 | Courtyard-style integrated equipment for sewage treatment |
| CN111188366A (en) * | 2020-01-07 | 2020-05-22 | 中国科学院生态环境研究中心 | Integrated embedded full-automatic deodorization well lid and using method thereof |
-
2020
- 2020-06-11 CN CN202010530278.5A patent/CN111851713A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0754392A (en) * | 1993-08-18 | 1995-02-28 | Asahi Tec Corp | Malodorous gas venting equipment in sewerage facility |
| CN205133337U (en) * | 2015-08-28 | 2016-04-06 | 天津天绿健科技有限公司 | Biological reaction device for sewage treatment |
| CN107989159A (en) * | 2017-11-28 | 2018-05-04 | 上海市城市建设设计研究总院（集团）有限公司 | The ventilative pressure inspection shaft of a high position |
| CN208088487U (en) * | 2018-01-08 | 2018-11-13 | 唐山学院 | A kind of outdoor sewage winding shaft that pernicious gas is detected, removed automatically |
| CN108758664A (en) * | 2018-06-24 | 2018-11-06 | 聂广正 | A kind of heat build-up burning VOCs treatment technology with absorption and lens function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982640A (en) * | 2021-04-28 | 2021-06-18 | 瑞燃(上海)环境工程技术有限公司 | Built-in deodorization device and technology for ventilation well |
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