CN202882097U - Multi-nozzle large jet angle diffuser for sewage deep-sea discharge - Google Patents
Multi-nozzle large jet angle diffuser for sewage deep-sea discharge Download PDFInfo
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- CN202882097U CN202882097U CN 201220492554 CN201220492554U CN202882097U CN 202882097 U CN202882097 U CN 202882097U CN 201220492554 CN201220492554 CN 201220492554 CN 201220492554 U CN201220492554 U CN 201220492554U CN 202882097 U CN202882097 U CN 202882097U
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Abstract
The utility model discloses a multi-nozzle large jet angle diffuser for sewage deep-sea discharge. The multi-nozzle large jet angle diffuser for the sewage deep-sea discharge comprises a main pipe, wherein a plurality of riser pipes are evenly distributed on the main pipe, the space between each two adjacent riser pipes is 8-10 meters, and the riser pipes are communicated with the main pipe. At least two jetting pipes are arranged on each riser pipe, wherein one end of each jetting pipe is connected with one riser pipe, and the other end of each jetting pipe is an outflow nozzle. The multi-nozzle large jet angle diffuser for the sewage deep-sea discharge is characterized in that the main pipe is formed by connecting multiple pipe sections, wherein the diameters of the multiple pipe sections are different, and the jetting angle of each outflow nozzle is 15-25 degrees. The multi-nozzle large jet angle diffuser for the sewage deep-sea discharge not only can guarantee that sewage and sea water are fully mixed, but also can avoid sewage accumulation due to rising at an over-high speed, and therefore the multi-nozzle large jet angle diffuser for the sewage deep-sea discharge is an important technical support for the implementation of the sewage deep-sea discharge in ports or coastal areas. Meanwhile, the multi-nozzle large jet angle diffuser for the sewage deep-sea discharge has a good sewage outflow hydraulic effect, and therefore high-efficiency operation of projects for discharging the sewage into the sea can be guaranteed, the influence on the ocean environment by the sewage is reduced, and expenses for relevant environmental protection measures are reduced.
Description
Technical field
The utility model relates to a kind of terminal facilities for sewage deep sea emission engineering, relates in particular to a kind of multi-port large stream angular spread device for the sewage deep sea emission.
Background technology
The sewage deep sea emission is position and the scope in strict control of sewage disposal mixed zone, meet the water quality objective requirement of discharging the waters, not affecting waters on every side uses under the prerequisite of function and the ecological homeostasis, selected suitable Location for Sewage, choose reasonable in design, reliable effluent discharge mode, take the engineering system measure of science, rationally utilize the detergent power in marine site, dispose a kind of engineering measure of sewage.After being the preliminary treatment of sewage through the regulation requirement, by being layed in the very long Outlet Pipe in seabed, offshore is transported to certain degree of depth under water, recycling has equivalent length, possesses the porous air diffuser of special tectonic, and sewage is mixed rapidly with water body on every side, dilutes at as far as possible little scope inner height, reach the required standards, requiring and free random row and without the side discharge of complete Underwater Engineering without strict control, is not the Research of Sewage Ocean Disposal of science, is unfavorable for the rational exploitation and utilization of marine resources.
And the porous air diffuser terminal facilities of effluent engineering of sewage as a whole is the important component part in the effluent engineering of sewage of modern coastal cities, is the principal character that is different from early stage effluent engineering of sewage, also is the critical facility of realizing marine environmental protection.In effluent engineering of sewage; the Main Function of porous air diffuser be by it can with the sewage Uniform Dispersion be discharged in the marine environment water body and go; therefore diffuser can offer the great Initial dilution of sewage, can play significant protective effect to marine ecology and water quality.From the effluent engineering of sewage that has put into operation at present, good porous air diffuser waterpower and structure design have become the key factor of effluent engineering of sewage success.
For whole Research of Sewage Ocean Disposal, the terminal diffuser is the important step that affects the dilution of sewage diffusion effect, protects the marine environment, and directly embodies the value of sewage deep sea emission engineering.The primary structure of diffuser is by supervisor, tedge and go out to flow spout and form, and wherein is mainly used in bearing the proper flow of sewage, and tedge generally is connected on the supervisor, and what be used for dredging sewage goes out to flow the position, and the terminal spout then is used for the stream that of sewage.Mainly concentrate at present its supervisor's structural shape for the design studies of diffuser, what for example the promise calf row maritime works journey diffuser difficult to understand of California, USA adopted is tedge single jet structure; The North Head row maritime works journey of Australia adopts I type structure diffuser; Malabar Research of Sewage Ocean Disposal engineering adopts the L-type structure.The researcher of China has also carried out large quantity research to the structural shape of diffuser in addition, such as the developing direction of the people such as Yan Zhongmin in conjunction with China's river course discharging, studied the near region blending dilution characteristic of porous air diffuser in the horizontal subduction discharging of Finite Water Depth and finite width waters, obtain the rule that affects of near region change of initial dilution, provide reliable foundation for discharging work sutdy and design; The king is superfine from shipping, construction, management and aquatile migration equal angles, propose to adopt porous T-shaped diffuser sewage effluent, according to the multiple jet rule of development, analyzed T-shaped diffuser discharging near region flow characteristic, and pass through calculated with mathematical model, forecast type diffuser discharging near region axial velocity, concentration and dilution along the journey Changing Pattern, having drawn relative momentum and diffuser length is the principal element that affects the pollutant horizontal proliferation.Can find out, the structural shape of at present most sewage terminal diffuser or the master that is changed to to be responsible for, less to the design studies of lip jet angle.So-called efflux angle, namely sewage goes out the angle of flow inclination and seawater horizontal angle, and flow angle is one of key factor that affects the dilution of sewage near region, but goes back at present the complete computation schema of neither one.Existing diffuser is mainly take flow angle 0 degree as main, namely sewage goes out to flow angle and sea level keeping parallelism, although this angle design can avoid sewage to rise too early the top, according to case history as can be known, flow angle is larger, after jet penetrates, because waterpower is streamed the effect of resistance, jet is slowly crooked, slowly hands over mixed with crossing current simultaneously, its width is increasing, and the sewage mixed effect is better.But excessive flow angle also can make the too fast liter of sewage top, so that the sewage cloud cluster has little time diffusion, contact littlely with the surrounding environment water body, can not get fully dilution diffusion, and it is relatively poor that dilution is spread.
The utility model content
For above-mentioned prior art, the utility model provides a kind of multi-port large stream angular spread device for the sewage deep sea emission.Not only have the dilution diffusion effect that good sewage goes out to flow, the waterpower effect that its sewage goes out to flow is also better, thereby guarantees the efficient operation of effluent engineering of sewage, reduces sewage to the impact of marine environment, reduces relevant environmental practice expense.
In order to solve the problems of the technologies described above, the utility model is used for the technical scheme that the multi-port large stream angular spread device of sewage deep sea emission is achieved: comprise supervisor, be evenly equipped with a plurality of tedges on the described supervisor, described tedge is communicated with described supervisor, at least be provided with 2 playpipes on the described tedge, one end of described playpipe is communicated with described tedge, and the other end of described playpipe is for going out to flow spout, and described supervisor is formed by connecting by the pipeline section of multistage different tube diameters; The described efflux angle that goes out to flow spout is 15～25 °.
Further, the utility model is used for the multi-port large stream angular spread device of sewage deep sea emission, and wherein, the described efflux angle that goes out to flow spout is 20 °; Described tedge be spaced apart 8～10m; Playpipe on each tedge is 2～4.
Compared with prior art, the beneficial effects of the utility model are:
Because the utility model is improved for the lip jet angle of diffuser, flow angle is designed to 15～25 degree, can guarantee fully mixing of sewage and seawater, also can avoid the too fast liter top of sewage to gather, be the important technology guarantee that the sewage deep sea emission is implemented in harbour or coastal area.Have simultaneously the waterpower effect that better sewage goes out stream, thereby guarantee the efficient operation of effluent engineering of sewage, reduce sewage to the impact of marine environment, reduce relevant environmental practice expense.
Description of drawings
Fig. 1 is the structural representation that the utility model is used for the multi-port large stream angular spread device of sewage deep sea emission;
Fig. 2 is that Fig. 1 is responsible for A-A position sectional view;
Fig. 3 is the utility model diffuser working state schematic representation.
Among the figure: the 1-supervisor, the 2-tedge, the 3-playpipe, 4-goes out to flow spout.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model is used for the multi-port large stream angular spread device of sewage deep sea emission, comprise supervisor 1, tedge 2, playpipe 3 and go out to flow spout 4, wherein be responsible for 1 proper flow that is mainly used in bearing sewage, tedge 2 generally is connected on the supervisor 1, what be used for dredging sewage goes out to flow the position, goes out to flow the stream that goes out that 4 of spouts are used for sewage.Described supervisor 1 is formed by connecting by the pipeline section of multistage different tube diameters, in the practical application, described supervisor's 1 a end is connected with the Outlet Pipe of sewage disposal facility, described supervisor 1 can be formed by connecting by the pipeline section of three sections different tube diameters, and described supervisor 1 is 6～8:1～2.5:1 from Outlet Pipe link to Length Ratio between three sections pipeline sections of the other end; The ratio of the caliber between three sections pipeline sections is 2.4～2.7:1.4～1.6:1; Be evenly equipped with a plurality of tedges 2 on the described supervisor 1, difference according to supervisor's 1 length, described tedge be spaced apart 8～10m, described tedge 2 is communicated with described supervisor 1, is provided with at least 2 playpipes 3 on the described tedge 2, and the playpipe on each tedge is preferably 2～4, one end of described playpipe 3 is communicated with described tedge 2, the other end of described playpipe 3 is for going out to flow spout 4, and the described efflux angle that goes out to flow spout is 15～25 °, and this efflux angle is preferably 20 °; The described horizontal azimuth (and the angle between the Environmental Water flow path direction) that goes out to flow spout is 0～90 °, and this horizontal azimuth is preferably 90 °, and to be that sewage goes out the level angle of stream vertical with the Environmental Water flow path direction.
The structure of the utility model diffuser embodiment as depicted in figs. 1 and 2, its physical dimension is as shown in table 1.
Table 1
| Diffuser supervisor length | 154m |
| The tedge spacing | 8.0m |
| Tedge quantity | 20 |
| The quantity of |
2 |
| Horizontal azimuth | 90° |
| Flow angle | 15～25° |
| Be responsible for each length of pipe section | 11 sections=92.5m, 12 sections=47m, 13 sections=12.5m |
| Be responsible for each pipeline section caliber | R1=780mm，R2=500mm，R3=300mm |
Flow angle is one of key factor that affects the dilution of sewage near region.The longitudinal diffusion shape is relevant with flow angle, and jet and vertical line angle are larger, and after jet penetrated, because waterpower is streamed the effect of resistance, jet was slowly crooked, and at the same time, jet and crossing current are slowly handed over mixed, and its width is increasing.
Test shows that when flow angle was 10 °, because horizontal azimuth is 10 °, some sewage cloud clusters were carried secretly owing to being subject to current, and drift distance is long, affects its dilution diffusion.
When flow angle is 30 °,, find in process of the test that it is shorter that sewage rises to the time of the water surface although the dilution of sewage diffusion effect meets the demands, form wastewater treatment field at the water surface easily, affect its dilution diffusion.Therefore 30 ° flow angle is excessive, can the dilution diffusion of sewage be had a negative impact.
When flow angle is 15～25 °, under the strong disturbance of environment current, be difficult for forming a certain sewage cloud cluster, and have certain drift distance, be not easy to form wastewater treatment field at the water surface, can obtain and dilute preferably diffusion effect.
It is 10 °, the 20 ° result of the tests during with 30 ° that table 2～table 4 is respectively flow angle.
Result of the test when table 2 flow angle is 10 °
Result of the test when table 3 flow angle is 120 °
Result of the test when table 4 flow angle is 30 °
Find by test; when the lip jet angle is 20 °; each tedge sewage elementary mixing before rising the top; illustrate that the design of tedge number also can satisfy the requirement of actual marine environmental protection, so the lip jet angle is the environmental requirement that 20 ° diffuser structure pattern can reach the sewage deep sea emission.In addition, be that the unevenness that each spout sewage goes out stream all is controlled at below 5% in 20 ° the situation at flow angle, other data also satisfy the waterpower calculating principle simultaneously, this shows, and what the utility model diffuser can satisfy effluent engineering of sewage goes out to flow requirement.
The course of work of the utility model diffuser is: the overall work process of sewage deep sea emission mainly is sewage to be pressurizeed according to the difference in height of sewage top and terminal and the linear loss situation of sewage by promoting pumping plant or high-order well, the extra large Outlet Pipe of recycling row carries treated production waste drainage, industrial waste water or sanitary sewage to discharge to selected in advance ocean correct position (sea bed), utilizes the huge dilution capacity in ocean to solve sewage and arranges extra large problem.Simultaneously, have best detergent power in order to make this place's seawater, need to adopt the porous anemostat of offshore subduction to discharge at this emission point, as shown in Figure 3.
Effluent discharge terminal diffuser is positioned on the sea bed of select location, diffuser supervisor's entrance point is connected with Outlet Pipe, after sewage entered the diffuser supervisor, the spout that goes out to flow of the playpipe that is connected by tedge after each tedge on it is dredged was spurted in the seawater.Sewage is after 20 ° diffuser enters the ocean through flow angle; can reach good dilution diffusion effect; in the scope of the mixed zone of national regulation; its dilution of sewage multiple can reach more than 100 times; substantially exceeded the extension rate standard of national regulation; the while basis is the later stage water quality monitoring situation of deep sea emission engineering in the past; dilution of sewage diffusion effect in the Practical Project meets the analysis result of numerical simulation and physical test; therefore the diffuser by large stream angle (20 °) carries out the sewage deep sea emission not only in the requirement of satisfying the deep sea emission engineering aspect the waterpower; realize the efficient operation of engineering; and can effectively protect the marine environment; greatly reduce sewage to the impact of marine ecosystems; indirectly reduce the corresponding environmental protection investments of engineering, provide strong technical guarantee to China's Coastal Areas economic development and the development of harbour water industry.
Although the above is described the utility model in conjunction with figure; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.
Claims (4)
1. multi-port large stream angular spread device that is used for the sewage deep sea emission, comprise supervisor, be evenly equipped with a plurality of tedges on the described supervisor, described tedge is communicated with described supervisor, at least be provided with 2 playpipes on the described tedge, an end of described playpipe is communicated with described tedge, and the other end of described playpipe is for going out to flow spout, it is characterized in that described supervisor is formed by connecting by the pipeline section of multistage different tube diameters; The described efflux angle that goes out to flow spout is 15 ~ 25 °.
2. described multi-port large stream angular spread device for the sewage deep sea emission according to claim 1 is characterized in that the described efflux angle that goes out to flow spout is 20 °.
3. described multi-port large stream angular spread device for the sewage deep sea emission according to claim 1 is characterized in that, described tedge be spaced apart 8 ~ 10m.
4. described multi-port large stream angular spread device for the sewage deep sea emission according to claim 1 is characterized in that the playpipe on each tedge is 2 ~ 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492554 CN202882097U (en) | 2012-09-21 | 2012-09-21 | Multi-nozzle large jet angle diffuser for sewage deep-sea discharge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492554 CN202882097U (en) | 2012-09-21 | 2012-09-21 | Multi-nozzle large jet angle diffuser for sewage deep-sea discharge |
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| CN202882097U true CN202882097U (en) | 2013-04-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831801A (en) * | 2015-04-07 | 2015-08-12 | 浙江海洋学院 | Cascading concentrated seawater discharging dispersion device |
| CN106284585A (en) * | 2016-08-05 | 2017-01-04 | 上海交通大学 | A kind of liquid waste treating apparatus for seabed resources exploitation |
| CN115935692A (en) * | 2022-12-28 | 2023-04-07 | 中国水利水电科学研究院 | Method for calculating initial dilution of inverted L-shaped diffuser |
-
2012
- 2012-09-21 CN CN 201220492554 patent/CN202882097U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831801A (en) * | 2015-04-07 | 2015-08-12 | 浙江海洋学院 | Cascading concentrated seawater discharging dispersion device |
| CN106284585A (en) * | 2016-08-05 | 2017-01-04 | 上海交通大学 | A kind of liquid waste treating apparatus for seabed resources exploitation |
| CN115935692A (en) * | 2022-12-28 | 2023-04-07 | 中国水利水电科学研究院 | Method for calculating initial dilution of inverted L-shaped diffuser |
| CN115935692B (en) * | 2022-12-28 | 2023-08-11 | 中国水利水电科学研究院 | Method for calculating initial dilution of gamma-shaped diffuser |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20160921 |