CN108569744B - Ultraviolet sterilization device for circulating culture sewage treatment - Google Patents
Ultraviolet sterilization device for circulating culture sewage treatment Download PDFInfo
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- CN108569744B CN108569744B CN201810443768.4A CN201810443768A CN108569744B CN 108569744 B CN108569744 B CN 108569744B CN 201810443768 A CN201810443768 A CN 201810443768A CN 108569744 B CN108569744 B CN 108569744B
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- sterilizer
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- flange end
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 50
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 35
- 239000010865 sewage Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 230000000694 effects Effects 0.000 claims abstract description 23
- 230000002070 germicidal effect Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 11
- 238000005286 illumination Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 102000039446 nucleic acids Human genes 0.000 description 3
- 108020004707 nucleic acids Proteins 0.000 description 3
- 150000007523 nucleic acids Chemical class 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002550 fecal effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000030833 cell death Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3227—Units with two or more lamps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/326—Lamp control systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses an ultraviolet sterilization device for treating circulating culture sewage, which comprises a flange end cover a and a flange end cover b, wherein a shell is arranged between the two flange end covers; the flange end cover a is provided with a plurality of water inlets, and the flange end cover b is provided with water outlets with the same number; an ultraviolet germicidal lamp is arranged in the middle of the shell, at least two capillary branches are arranged around the ultraviolet germicidal lamp, and two ends of each capillary branch are respectively communicated with the water inlet and the water outlet. The ultraviolet sterilization device can obviously improve the ultraviolet sterilization effect under the condition of not changing the radiation intensity of the ultraviolet lamp, thereby achieving the ideal sterilization effect.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to an ultraviolet sterilization device for treating circulating aquaculture sewage.
Background
The ultraviolet sterilization technology is a sterilization technology which utilizes ultraviolet rays generated by an ultraviolet lamp to radiate so as to achieve the sterilization effect. When the microorganism is exposed to ultraviolet light, the ultraviolet light is absorbed by the nucleic acid of the microorganism. On one hand, the nucleic acid can be mutated to ensure that the nucleic acid cannot be copied and transcribed to block the synthesis of protein; on the other hand, free radicals are generated to cause photoionization, thereby causing cell death, and achieving the purpose of sterilization. The sterilization technology has the advantages of high efficiency, safety, no secondary pollution, low cost and continuous work, and is widely applied to aquaculture in China.
In the current circulation cultivation, ultraviolet sterilization mainly includes that an ultraviolet sterilization lamp tube is directly installed in a water body for sterilization or an ultraviolet lamp is installed above the water body to be sterilized for radiation sterilization. These methods have some disadvantages in use. The ultraviolet disinfection effect is related to the transmittance of the lamp tube and water and the irradiation time. The cross-sectional area of the pipeline of the water body to be sterilized is large, the flow velocity of the water body is high, and the sterilizing effect of the ultraviolet lamp is obviously restricted. The sterilizing effect of the ultraviolet sterilizing technology has a direct relation with the radiation intensity of the ultraviolet lamp, the larger the radiation intensity is, the better the sterilizing effect is, but the waste of electric energy can be brought by the overlarge radiation intensity. Therefore, there is a need for a more efficient sterilization device without increasing the radiation intensity of the ultraviolet lamp.
Disclosure of Invention
The invention provides an ultraviolet sterilization device for treating circulating culture sewage, which can realize efficient sterilization of circulating water in circulating culture and solve the problem of poor sterilization effect of the conventional ultraviolet sterilization method.
An ultraviolet sterilization device for treating circulating culture sewage comprises a flange end cover a and a flange end cover b, and a shell arranged between the two flange end covers;
the flange end cover a is provided with a plurality of water inlets, and the flange end cover b is provided with water outlets with the same number;
an ultraviolet germicidal lamp is arranged in the middle of the shell, at least two capillary branches are arranged around the ultraviolet germicidal lamp, and two ends of each capillary branch are respectively communicated with the water inlet and the water outlet.
The device is arranged on a circulating sewage pipeline, and a flange end cover a and a flange end cover b are respectively fixedly connected with the upstream and the downstream of the circulating sewage pipeline.
In the device, the ultraviolet sterilizing water body pipeline is arranged into a plurality of capillary branches, the ultraviolet lamp tube is positioned at the central position of each capillary branch, the capillary branches are parallel, the water flow is kept unchanged, the cross section area of each capillary is small, the influence of the turbidity of water on the ultraviolet sterilizing effect is reduced, the radiation intensity received by the water body is not easy to attenuate due to the water body, and the better sterilizing effect can be achieved.
For preventing the injury of ultraviolet radiation to the human body, reduce the diffusion loss of ultraviolet lamp light, as preferred, the casing be the shading material, the inner wall has the reflector layer, has the light reflex effect, the branched shady face of capillary is shone to the ultraviolet lamp luminous energy after the reflection, promotes bactericidal effect.
In the technical scheme, the number of the capillary branches can be reasonably set according to the sewage treatment capacity, is generally not less than four, and is arranged around the ultraviolet sterilizing lamp.
Preferably, the two adjacent capillary branches have equal spacing, the inner wall of the shell between the two adjacent capillary branches is provided with a convex edge, and a light-gathering arc surface acting on the corresponding capillary branch is arranged between the two convex edges. The light-gathering cambered surface has a light-gathering effect, the illumination intensity is enhanced, and the sterilization effect is obviously improved.
Preferably, the inner wall of the shell is a rough surface with a diffuse reflection effect, and the uniformity of illumination is improved by utilizing the diffuse reflection effect of the inner wall.
Preferably, side plates are arranged between the flange end cover a and the end part of the flange end cover b and the end part of the shell, inserting holes aligned with the water outlet or the water inlet are formed in the side plates, and two ends of each capillary branch are inserted into the inserting holes to communicate the water inlet and the water outlet.
The shell and the flange end covers are respectively fixed on two sides of the side plate and are fixed by adopting a detachable structure, such as bolts, so that the assembly and the maintenance of the device are convenient.
Preferably, the middle part of the side plate is provided with a lamp holder for fixedly mounting the ultraviolet sterilizing lamp, and a wire slot for supplying power to the ultraviolet sterilizing lamp.
Because the casing is light-tight material, for the observation of being convenient for whether normal operating of ultraviolet germicidal lamp, can install light intensity sensor on the lamp stand, go out or when illumination intensity decay, send signal warning when ultraviolet germicidal lamp breaks down, remind the user to overhaul.
In order to improve the sealing effect between the flange end cover and the side plate and prevent water leakage. Preferably, the water inlet and the water outlet are provided with flanges extending outwards, and the flanges extend into the plug holes and abut against steps arranged in the plug holes; or a sealing gasket is arranged outside the flange or on the step, so that the sealing performance is further improved.
The capillary branch in the technical scheme is generally a straight pipe. Preferably, each capillary branch is in a spiral pipe shape, and the spiral pipe has a larger illumination area compared with a straight pipe, so that the illumination time is prolonged, and the ultraviolet sterilization effect is improved.
Preferably, a positioning plate is arranged in the shell, the ultraviolet germicidal lamp and each capillary branch penetrate through the positioning hole in the positioning plate, and after the side plate is removed, the ultraviolet germicidal lamp and each capillary branch are supported, and the positions of each capillary branch and the ultraviolet germicidal lamp are fixed.
The invention has the beneficial effects that: the ultraviolet sterilization device can obviously improve the ultraviolet sterilization effect under the condition of not changing the radiation intensity of the ultraviolet lamp, thereby achieving the ideal sterilization effect.
Drawings
FIG. 1 is a view showing the construction of an ultraviolet sterilizer according to the present invention;
FIG. 2 is a cross-sectional view of one of the flanged end caps;
FIG. 3 is a side view of one of the flanged end caps;
FIG. 4 is an assembled view of the flange end cap and side plate;
FIG. 5 is a cross-sectional view of the housing;
fig. 6 is a structural view of the positioning plate.
Detailed Description
The present invention will be described in detail with reference to the following examples and drawings, but the present invention is not limited thereto.
The ultraviolet sterilizer shown in fig. 1 to 6 includes a flange cover a1, a flange cover b2, a side plate 7, a side plate 6 and a housing 5.
The edges of the two flange end covers are provided with flange holes 11 for connecting and fixing the pipeline. The flange end cover a1 is provided with a plurality of water inlets, and the flange end cover b is provided with a plurality of water outlets with the same number. As shown in the flange end caps of fig. 2 and 3, the holes 13 may be water inlets or water outlets.
The shell 5 is a cylinder, the middle part of the shell is provided with an ultraviolet germicidal lamp 4, a plurality of capillary branches 3 are arranged around the ultraviolet germicidal lamp 4, and two ends of each capillary branch 3 are respectively communicated with the water inlet and the water outlet.
The shell 5 is made of shading materials, so that the damage of ultraviolet radiation to a human body is prevented, and the diffusion loss of ultraviolet light is reduced. The inner wall of the shell 5 is provided with a reflecting layer with a light reflecting effect, and the reflected ultraviolet lamp light can irradiate the backlight surface of the capillary branch, so that the sterilizing effect is improved.
In this embodiment, the number of the capillary branches is 6, and in other embodiments, the capillary branches can be reasonably arranged according to the sewage treatment capacity, for example, 3 capillary branches, 5 capillary branches or 12 capillary branches, generally not less than four capillary branches, are uniformly arranged around the ultraviolet germicidal lamp.
As shown in fig. 5, a convex rib 14 may be disposed on the inner wall of the housing 5, and a light-gathering arc surface 15 acting on the corresponding capillary branch 3 is disposed between the two convex ribs 14, so that the light-gathering effect of the light-gathering arc surface is utilized to enhance the illumination intensity and enhance the sterilization effect. Or, in another embodiment, the inner wall of the shell is a rough surface with a diffuse reflection effect, and the illumination uniformity is improved by utilizing the diffuse reflection effect of the inner wall.
The side plate 7 or the side plate 6 is provided with an inserting hole 18 which is aligned with the water outlet or the water inlet, and two ends of each capillary branch 3 are inserted into the inserting hole 18 to communicate the water inlet and the water outlet. In this embodiment, the water inlet and the water outlet are provided with flanges 16 extending outwards, and the flanges 16 extend into the insertion holes 18 from the other side and abut against steps 17 arranged in the insertion holes to be in butt joint communication with the capillary branches 3.
The shell 5 and the flange end covers are respectively fixed on two sides of the side plates and are fixed by adopting a detachable structure, such as bolts, so that the assembly and the maintenance of the device are convenient.
The middle part of the side plate 7 is provided with a lamp holder 12 for fixedly mounting the ultraviolet germicidal lamp 4, and a wire slot 10 for supplying power to the ultraviolet germicidal lamp is arranged. In addition, because the casing is light-tight material, whether normal operating is gone for observing the ultraviolet bactericidal lamp in order to be convenient for, can install light intensity sensor on the lamp stand, go out or when illumination intensity decay when ultraviolet bactericidal lamp breaks down, send signal warning, remind the user to overhaul.
The capillary branch 3 in this embodiment is a straight tube. In another embodiment, each capillary branch can be arranged to be in a spiral tube shape, and the spiral tube has a larger illumination area and longer illumination time compared with a straight tube, so that the ultraviolet sterilization effect is improved.
A positioning plate 8 is arranged in the shell 5, and the ultraviolet germicidal lamp 3 and each capillary branch 4 penetrate through a positioning hole 9 in the positioning plate 8 to keep the position fixed.
In order to enable the illumination intensity of the ultraviolet germicidal lamp 3 to be matched with the flow rate of water in the capillary branch 4, a flow rate sensor can be arranged in a side plate 6 or a side plate 7 of the ultraviolet germicidal lamp, the flow rate entering the capillary branch 4 is monitored, and the built-in controller adjusts the light intensity of the ultraviolet germicidal lamp 3 according to the flow rate, so that the ultraviolet germicidal lamp has an energy-saving effect while sterilizing.
In this embodiment, the flange end cover a and the flange end cover b are respectively connected and fixed at the upstream and downstream of the circulating sewage pipeline. The ultraviolet sterilizing water body pipeline is arranged into a plurality of capillary branches, the ultraviolet lamp tube is located in the central position of each capillary branch, the capillary branches are parallel, the water flow is kept unchanged, the cross section area of each capillary is small, the influence of the turbidity of water on the ultraviolet sterilizing effect is reduced, the radiation intensity received by the water body is not easy to attenuate due to the water body, and the better sterilizing effect can be achieved.
The water body is sterilized by respectively adopting a conventional ultraviolet sterilization method and the device in the embodiment, and then the concentration of fecal coliform in the water body is measured by a membrane filtration method specified by 9222D standard. The faecal coliform is a common flora for ultraviolet sterilization research and is a standard target flora for water purification. 3 cubic meters of circulating water was sterilized using a 55W UV lamp, and the results are shown in Table 1. From the data in the table, it can be clearly found that, compared with the conventional method, the sterilization rate of the fecal coliform bacteria is greatly improved after the treatment by the device in the embodiment, and the sterilization effect is obviously improved.
TABLE 1 results of two methods for sterilizing circulating water
The above description is only exemplary of the preferred embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An ultraviolet sterilization device for treating circulating culture sewage is characterized by comprising a flange end cover a and a flange end cover b, and a shell arranged between the two flange end covers;
the flange end cover a is provided with a plurality of water inlets, and the flange end cover b is provided with water outlets with the same number;
an ultraviolet germicidal lamp is arranged in the middle of the shell, at least four capillary branches are arranged around the ultraviolet germicidal lamp, and two ends of each capillary branch are respectively communicated with the water inlet and the water outlet.
2. The ultraviolet sterilizer of claim 1, wherein the housing is made of a light-shielding material and has a light-reflecting layer on an inner wall thereof.
3. The UV sterilizer of claim 1 or 2, wherein the capillary branches are equally spaced, the inner wall of the housing between the capillary branches has a rib, and the rib has a light-gathering curved surface acting on the corresponding capillary branch.
4. The ultraviolet sterilizer of claim 3, wherein the inner wall of the housing is a rough surface having a diffuse reflection effect.
5. The ultraviolet sterilizer as claimed in claim 1, wherein side plates are provided between the flange end caps a and b and the end of the housing, the side plates are provided with insertion holes aligned with the water outlets or the water inlets, and both ends of each capillary branch are inserted into the insertion holes to communicate the water inlets and the water outlets.
6. The UV sterilizer of claim 5, wherein a lamp holder is provided at a middle portion of said side plate to fixedly mount said UV sterilizer, and a wire casing for supplying power to said UV sterilizer is provided.
7. The UV sterilizer of claim 5, wherein the water inlet and the water outlet are provided with outwardly extending flanges which extend into the socket and abut against a step provided in the socket.
8. The uv sterilizer of claim 1, wherein each of the capillary branches has a spiral tube shape.
9. The UV sterilizer of claim 1, wherein a positioning plate is disposed in the housing, and the UV sterilizer lamp and each capillary tube branch are penetrated through the positioning hole of the positioning plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443768.4A CN108569744B (en) | 2018-05-10 | 2018-05-10 | Ultraviolet sterilization device for circulating culture sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443768.4A CN108569744B (en) | 2018-05-10 | 2018-05-10 | Ultraviolet sterilization device for circulating culture sewage treatment |
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| Publication Number | Publication Date |
|---|---|
| CN108569744A CN108569744A (en) | 2018-09-25 |
| CN108569744B true CN108569744B (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810443768.4A Active CN108569744B (en) | 2018-05-10 | 2018-05-10 | Ultraviolet sterilization device for circulating culture sewage treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362486A (en) * | 2020-04-09 | 2020-07-03 | 同济大学 | Device and method for quickly disinfecting and removing disinfection byproducts |
| KR102654239B1 (en) * | 2021-11-11 | 2024-04-04 | 한국과학기술연구원 | Sterilizer apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5779912A (en) * | 1997-01-31 | 1998-07-14 | Lynntech, Inc. | Photocatalytic oxidation of organics using a porous titanium dioxide membrane and an efficient oxidant |
| CN2604183Y (en) * | 2002-12-16 | 2004-02-25 | 陈港生 | Novel ultraviolet sterilization device |
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2018
- 2018-05-10 CN CN201810443768.4A patent/CN108569744B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5779912A (en) * | 1997-01-31 | 1998-07-14 | Lynntech, Inc. | Photocatalytic oxidation of organics using a porous titanium dioxide membrane and an efficient oxidant |
| CN2604183Y (en) * | 2002-12-16 | 2004-02-25 | 陈港生 | Novel ultraviolet sterilization device |
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