CN108193640B - Suspended wave eliminating system - Google Patents
Suspended wave eliminating system Download PDFInfo
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- CN108193640B CN108193640B CN201810040514.8A CN201810040514A CN108193640B CN 108193640 B CN108193640 B CN 108193640B CN 201810040514 A CN201810040514 A CN 201810040514A CN 108193640 B CN108193640 B CN 108193640B
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The application discloses a suspension type wave eliminating system, which comprises a single suspension type wave eliminating unit, wherein the single suspension type wave eliminating unit also comprises a netlike suspension module; and the floating body module is connected with the net-shaped suspension module and comprises a first floating body and a second floating body. The application has the beneficial effects that: firstly, through the arranged netlike suspension modules, a plurality of suspension modes are arranged below the water surface to keep the water surface open, so that the formation of an alga-rich water layer on the surface can be facilitated, meanwhile, turbulence can be inhibited, the water body can be stabilized, the stormy waves on the water surface can be eliminated, and the alga floating can be promoted; secondly, through the floating body module, the net-shaped suspension module can suspend and adapt to the change of water level, the suspension type wave eliminating system is always kept in a tense state, the stability of the wave eliminating system is kept, and the effect of the wave eliminating system can be improved in the tense state.
Description
Technical Field
The application relates to the technical field of water pollution treatment, in particular to a suspension type wave eliminating system.
Background
In recent years, eutrophication occurs in many water bodies, which means that under the influence of human activities, nutrient substances such as nitrogen, phosphorus and the like required by organisms enter slow-flowing water bodies such as lakes, rivers, lakes, bays and the like in a large amount, algae and other plankton are rapidly propagated, the dissolved oxygen in the water bodies is reduced, the water quality is deteriorated, and fishes and other organisms die in a large amount, wherein floating algae are propagated in a large amount to form water bloom (a natural ecological phenomenon of the large-scale algae propagation in fresh water bodies), the water quality of the water bodies is influenced by the eutrophication, the transparency of water is reduced, sunlight is difficult to penetrate through a water layer, and photosynthesis of plants in the water is influenced, so that a supersaturation state of the dissolved oxygen is possibly caused. Oversaturation of dissolved oxygen and less dissolved oxygen in water are harmful to aquatic animals, resulting in massive death of fish. Meanwhile, because the water body is eutrophicated, a large amount of algae taking blue algae and green algae as dominant species grow on the surface of the water body to form a layer of green scum, so that harmful gas generated by decomposing organic matters accumulated on the bottom layer under anaerobic conditions and biotoxin generated by some plankton can also hurt fish. Because the eutrophic water contains nitrate and nitrite, people and livestock drink water with the content exceeding a certain standard for a long time, the water can also be poisoned and pathogenic. After the green scum is formed, the underwater algae cannot breathe oxygen in water due to the fact that sunlight irradiation is not available, and photosynthesis cannot be performed. Oxygen in water is gradually reduced, and aquatic organisms die due to insufficient oxygen. Dead algae and organisms oxidize in water, which can become very odorous and the water resource can be contaminated and not reused. The blue algae bloom in the reservoir is not afraid, because living blue algae growing naturally does not pollute the water quality; however, if the disposal is not enough, the water can be accumulated at the height of the water area (downwind direction) in front of the dam, and then the water is dead, rotted and polluted. Therefore, the existing protection measures of blue algae at the water outlet and temporary emergency algae removal measures cannot meet the requirements of preventing and controlling blue algae disasters, and stronger defense lines must be constructed.
Aiming at the problems, the water treatment department needs to execute corresponding anti-pollution measures in a water operation mode, such as water operation including water bottom slotting, water bottom anchoring, linear arrangement and the like, so as to set a blocking defense line for pollution control of water quality pollution caused by growth of bloom-forming cyanobacteria, and biological suspension filler is put into a reservoir according to a certain proportion in the blocking defense line, so that a sewage treatment process for mud film symbiosis is formed. According to the process, a certain amount of suspension carriers are added into the aeration tank, so that biomass and biological species in the aeration tank are improved, and the treatment efficiency of the aeration tank is improved. The material of the suspension filler is mainly polyethylene and polypropylene, and auxiliary components are properly added. So that the water and the microorganism are in a complete mixing state when in aeration, and the environment for the growth of the microorganism is three phases of gas, liquid and solid. The collision and shearing action of the carrier in the water ensures that air bubbles are finer, and the utilization rate of oxygen is increased. In addition, the inside and the outside of each carrier are respectively provided with different biological species, anaerobic bacteria or facultative bacteria grow inside, and bacteria grow well outside, so that each carrier is a micro-reactor, and the nitrification reaction and the denitrification reaction exist simultaneously, thereby improving the treatment effect, but the suspended filler is unfavorable for the floating of algae due to the influence of wind and waves on the flow rate of the water body in the reservoir, and the effect is reduced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the above-mentioned problems with the conventional suspended wave dissipating system.
Therefore, the application aims to provide a suspension type wave eliminating system which is used for inhibiting turbulence, stabilizing water and promoting algae to float upwards; the reticular filler is arranged below the water surface to keep the water surface open, is convenient for forming an alga-rich water layer on the surface, drives and enriches floating alga through wind-generated surface flow, and is beneficial to cleaning.
In order to solve the technical problems, the application provides the following technical scheme: the suspended wave eliminating system comprises a single suspended wave eliminating unit, wherein the single suspended wave eliminating unit also comprises a netlike suspended module, and the netlike suspended filler is suspended below the water surface and also comprises a connecting belt arranged at the upper end; and the floating body module is connected with the netlike suspension module and comprises a first floating body and a second floating body, the first floating body is connected with the connecting belt, and the second floating body is arranged at two ends of the connecting belt.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: still include fixed module, it still includes spud pile and fixed rope, the spud pile sets up in the submarine, the second body pass through fixed rope with the spud pile is connected, just still be provided with on the fixed rope zonulae occludens the first body.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the first floating bodies are floating balls, and a plurality of floating balls are connected in series at intervals through a serial connection piece to form a floating body belt which is matched and connected with the connecting belt and floats the net-shaped suspension module.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the second floating body is a floating body, the bottom end of the second floating body is provided with a connecting plate, the connecting plate is also provided with a connecting hole, and the connecting hole is connected with the serial connection piece in a matched mode.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the bottom of the net-shaped suspension module is also provided with a lower steel member, and the lower steel member increases the load at the bottom end of the net-shaped suspension module so as to enable the net-shaped suspension module to be fully unfolded underwater.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the suspended wave eliminating units are sequentially spaced at a certain distance and hang in parallel, and the adjacent second floating bodies are connected through the upper steel piece.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the steel upward piece and the straight line where the connecting belt is located are mutually perpendicular, two ends of the steel upward piece are connected with steel upward fixing piles, and the steel upward fixing piles are fixed on the water bottom.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the two second floating bodies positioned at the outermost ends of the upper steel parts are symmetrically arranged, and the parts fixed by the upper steel parts are positioned under the water surface, so that the upper steel parts can be always kept in a tensioned state along with the change of the water level.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the second floating body further comprises a top line connecting plate, the top line connecting plate is a triangular stainless steel plate, a top line connecting hole is formed in the top line connecting plate, and the top line connecting hole is connected with the top line piece in a matched mode.
As a preferable scheme of the suspension type wave eliminating system of the application, wherein: the upper line connecting plate is connected with the second floating body through a reinforcing plate.
The application has the beneficial effects that: the suspended wave eliminating system provided by the application has the advantages that the suspended wave eliminating system is characterized in that the suspended wave eliminating system is provided with the net-shaped suspended modules, a plurality of suspended modules are arranged below the water surface to keep the water surface open, so that the formation of an alga-rich water layer on the surface can be facilitated, meanwhile, turbulence can be inhibited, the water body can be stabilized, the stormy waves on the water surface can be eliminated, and the upward floating of algae can be promoted; secondly, through the floating body module, the net-shaped suspension module can suspend and adapt to the change of water level, the suspension type wave eliminating system is always kept in a tense state, the stability of the wave eliminating system is kept, and the effect of the wave eliminating system can be improved in the tense state.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic view of the overall structure of a vertical section of a suspended wave attenuating system according to a first embodiment of the present application;
FIG. 2 is an enlarged schematic view of the structure shown at a in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at b in FIG. 1;
fig. 4 is a schematic top view of the overall structure of the suspended wave dissipating system according to the second embodiment of the present application;
FIG. 5 is a schematic view of the overall structure of a vertical section of a suspended wave attenuating system according to a second embodiment of the present application;
fig. 6 is a schematic diagram of the overall structure of a second floating body in the suspended wave dissipating system according to the third embodiment of the present application;
fig. 7 is a schematic view of the overall structure of a connection board in the suspended wave dissipating system according to the third embodiment of the present application;
fig. 8 is a schematic diagram of the overall structure of a top line connection plate in the suspended wave dissipating system according to the third embodiment of the present application;
fig. 9 is a schematic diagram of the overall structure of a hole in the suspended wave dissipating system according to the third embodiment of the present application;
fig. 10 is a schematic diagram of the overall structure of the connection hole of the top line in the suspended wave dissipating system according to the third embodiment of the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present application in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
As shown in fig. 1 to 3, the overall structure of the suspended wave-dissipating system according to the first embodiment of the present application is schematically shown, and for the eutrophication of water body caused by the growth of algae bloom on the surface of a reservoir, a large amount of algae using blue algae and green algae as dominant species grow on the surface of the water body to form a layer of "green dross", so that the harmful gas generated by the decomposition of the organic matters deposited on the bottom layer under anaerobic conditions and the biotoxin generated by some plankton will also injure fish. Because the eutrophic water contains nitrate and nitrite, people and livestock drink water with the content exceeding a certain standard for a long time, the water can be poisoned and pathogenic, so that water resources can be polluted and can not be reused, and a suspended wave eliminating system is formed by placing a reticular filler so as to inhibit turbulence, stabilize water and promote algae to float upwards; the reticular filler is arranged below the water surface to keep the water surface open, is convenient for forming an alga-rich water layer on the surface, drives and enriches floating alga through wind-generated surface flow, and is beneficial to cleaning. The suspended wave dissipating system in this embodiment includes a single suspended wave dissipating unit a, the single suspended wave dissipating unit a further includes a mesh suspension module 100, the mesh suspension module 100 is suspended under the water surface, the suspended wave dissipating system further includes a connecting band 101 and a floating body module 200 disposed at the upper end, the connecting band is connected with the mesh suspension module 100, the suspended wave dissipating system includes a first floating body 201 and a second floating body 202, the first floating body 201 is connected with the connecting band 101, the second floating body 202 is disposed at two ends of the connecting band 101, the connecting band 101 is a flat band provided with a binding interface, the top edge of the mesh suspension module 100 is connected by sewing, the first floating body 201 is a floating ball, a plurality of floating balls are connected with the connecting band 101 in series at intervals to form a floating body band matched with the connecting band 101 through a series 201a, the floating ball is suspended by a rope made of polyethylene material, the series 201a rope penetrates through the floating ball and sequentially connects the spaced floating balls into a straight line, the straight line is disposed above the connecting band 101 in parallel, and the binding interface on the connecting band 101 is nylon binding interface, so that the first floating body 201 is suspended from the water surface to suspend the mesh suspension module 100. Further, the second floating body 202 is a buoy, and is disposed at two ends of the mesh-shaped suspension module 100 and connected to the serial connection member 201a, the serial connection member 201a is in a straightened state by the connection between the fixing module 300 and the second floating body 202, referring to the longitudinal sectional view of the embodiment in fig. 1, B is the height of the water surface, when it is not difficult to find that the water surface is down and down, the serial connection member 201a is a straight line, and two ends are tightened by the second floating body 202, wherein the fixing module 300 further includes a fixing pile 301 and a fixing rope 302, the fixing pile 301 is disposed in the mud layer C of the water bottom, the second floating body 202 is connected to the fixing pile 301 by the fixing rope 302, and the fixing rope 302 is further provided with the first floating body 201 in tight connection. Referring to fig. 3, a lower steel member 102 is further disposed at the bottom of the mesh suspension module 100, where the lower steel member 102 increases the load at the bottom of the mesh suspension module 100, so that the mesh suspension module 100 can be fully deployed underwater, and the full deployment of the mesh suspension module 100 under water can not only inhibit turbulence and stabilize water, and promote algae to float upwards; the reticular filler is arranged below the water surface to keep the water surface open, is convenient for forming an alga-rich water layer on the surface, drives and enriches floating alga through wind-generated surface flow, and is beneficial to cleaning.
As shown in fig. 4 to 5, which are schematic views of the overall structure of the suspended wave dissipating system according to the second embodiment of the present application, in order to enhance the effect of the suspended wave dissipating system on the water surface and the area of the suspended wave dissipating system acting on the water surface, the present embodiment is different from the first embodiment in that: the suspended wave eliminating units A are sequentially spaced at a certain distance and are suspended on the water surface in parallel to form a larger area, and the suspended wave eliminating system can better absorb the organisms on the water surface and enhance the wave eliminating effect. Specifically, the system includes a single suspended wave dissipating unit a, the single suspended wave dissipating unit a further includes a mesh suspension module 100, the mesh suspension module 100 is suspended below the water surface, the system further includes a connecting belt 101 and a floating body module 200 disposed at the upper end, the system is connected with the mesh suspension module 100, the system includes a first floating body 201 and a second floating body 202, the first floating body 201 is connected with the connecting belt 101, the second floating body 202 is disposed at two ends of the connecting belt 101, the connecting belt 101 is a flat belt with a binding port in this embodiment, the top edge of the mesh suspension module 100 is connected by sewing, the first floating body 201 is a floating ball, a plurality of floating balls are connected in series at intervals through a serial piece 201a to form a floating body belt matched with the connecting belt 101, the mesh suspension module 100 is suspended, wherein the serial piece 201a is a rope made of polyethylene material, the floating balls pass through the floating balls and are sequentially connected into a straight line, the straight line is disposed above the connecting belt 101 in parallel, and the binding port on the connecting belt 101 is bound by nylon, so that the first floating body 201 is suspended on the water surface. Further, the second floating body 202 is a buoy, and is disposed at two ends of the mesh-shaped suspension module 100 and connected to the serial connection member 201a, the serial connection member 201a is in a straightened state by the connection between the fixing module 300 and the second floating body 202, referring to the longitudinal sectional view of the embodiment in fig. 1, B is the height of the water surface, when it is not difficult to find that the water surface is down and down, the serial connection member 201a is a straight line, and two ends are tightened by the second floating body 202, wherein the fixing module 300 further includes a fixing pile 301 and a fixing rope 302, the fixing pile 301 is disposed in the mud layer C of the water bottom, the second floating body 202 is connected to the fixing pile 301 by the fixing rope 302, and the fixing rope 302 is further provided with the first floating body 201 in tight connection. Referring to fig. 3, a lower steel member 102 is further disposed at the bottom of the mesh suspension module 100, where the lower steel member 102 increases the load at the bottom of the mesh suspension module 100, so that the mesh suspension module 100 can be fully deployed underwater, and the full deployment of the mesh suspension module 100 under water can not only inhibit turbulence and stabilize water, and promote algae to float upwards; the reticular filler is arranged below the water surface to keep the water surface open, is convenient for forming an alga-rich water layer on the surface, drives and enriches floating alga through wind-generated surface flow, and is beneficial to cleaning. In this embodiment, a plurality of suspended wave dissipating units a are sequentially spaced at a certain distance and suspended in parallel, and the second floating bodies 202 between adjacent floating bodies are connected with each other through the upper steel member 400, wherein the upper steel member 400 and the lower steel member 102 are both chains made of stainless steel, the upper steel member 400 and the connecting belt 101 are arranged in a straight line perpendicular to each other, two ends of the upper steel member 400 are connected with the upper steel fixing piles 401, the upper steel fixing piles 401 are arranged at the bottom of the water, and the two second floating bodies 202 at the outermost end of the upper steel member 400 are symmetrically arranged and are positioned under the water surface by the fixing parts of the upper steel member 400, so that the upper steel member 400 can be always kept in a tensioned state along with the change of the water level.
Fig. 6 to 10 are schematic views showing the overall structure of a suspended wave dissipating system according to a third embodiment of the present application, in order to enhance the stability of the suspended wave dissipating system, the present embodiment is different from the second embodiment in that: the bottom end of the second floating body 202 is provided with a connection plate 202a, a line connection plate 202b, and a reinforcement plate 202c. Specifically, the system includes a single suspended wave dissipating unit a, the single suspended wave dissipating unit a further includes a mesh suspension module 100, the mesh suspension module 100 is suspended below the water surface, the system further includes a connecting belt 101 and a floating body module 200 disposed at the upper end, the system is connected with the mesh suspension module 100, the system includes a first floating body 201 and a second floating body 202, the first floating body 201 is connected with the connecting belt 101, the second floating body 202 is disposed at two ends of the connecting belt 101, the connecting belt 101 is a flat belt with a binding port in this embodiment, the top edge of the mesh suspension module 100 is connected by sewing, the first floating body 201 is a floating ball, a plurality of floating balls are connected in series at intervals through a serial piece 201a to form a floating body belt matched with the connecting belt 101, the mesh suspension module 100 is suspended, wherein the serial piece 201a is a rope made of polyethylene material, the floating balls pass through the floating balls and are sequentially connected into a straight line, the straight line is disposed above the connecting belt 101 in parallel, and the binding port on the connecting belt 101 is bound by nylon, so that the first floating body 201 is suspended on the water surface. Further, the second floating body 202 is a buoy, and is disposed at two ends of the mesh-shaped suspension module 100 and connected to the serial connection member 201a, the serial connection member 201a is in a straightened state by the connection between the fixing module 300 and the second floating body 202, referring to the longitudinal sectional view of the embodiment in fig. 1, B is the height of the water surface, when it is not difficult to find that the water surface is down and down, the serial connection member 201a is a straight line, and two ends are tightened by the second floating body 202, wherein the fixing module 300 further includes a fixing pile 301 and a fixing rope 302, the fixing pile 301 is disposed in the mud layer C of the water bottom, the second floating body 202 is connected to the fixing pile 301 by the fixing rope 302, and the fixing rope 302 is further provided with the first floating body 201 in tight connection. Referring to fig. 3, a lower steel member 102 is further disposed at the bottom of the mesh suspension module 100, where the lower steel member 102 increases the load at the bottom of the mesh suspension module 100, so that the mesh suspension module 100 can be fully deployed underwater, and the full deployment of the mesh suspension module 100 under water can not only inhibit turbulence and stabilize water, and promote algae to float upwards; the reticular filler is arranged below the water surface to keep the water surface open, is convenient for forming an alga-rich water layer on the surface, drives and enriches floating alga through wind-generated surface flow, and is beneficial to cleaning. In this embodiment, a plurality of suspended wave dissipating units a are sequentially spaced at a certain distance and suspended in parallel, and the second floating bodies 202 between adjacent floating bodies are connected with each other through the upper steel member 400, wherein the upper steel member 400 and the lower steel member 102 are both chains made of stainless steel, the upper steel member 400 and the connecting belt 101 are arranged in a straight line perpendicular to each other, two ends of the upper steel member 400 are connected with the upper steel fixing piles 401, the upper steel fixing piles 401 are arranged at the bottom of the water, and the two second floating bodies 202 at the outermost end of the upper steel member 400 are symmetrically arranged and are positioned under the water surface by the fixing parts of the upper steel member 400, so that the upper steel member 400 can be always kept in a tensioned state along with the change of the water level. Further, the connecting plate 202a is further provided with a connecting hole 202a-1, the connecting hole 202a-1 is cooperatively connected with the serial connection piece 201a, the upper line connecting plate 202b is a triangular stainless steel plate, the upper line connecting hole 202b-1 is cooperatively connected with the upper line piece 400, the upper line connecting plate 202b and the serial connection piece 201a are both connected with the second floating body 202 through a reinforcing plate 202c, the connection strength between the upper line connecting plate 202b and the serial connection piece is increased, the effect of the suspended wave eliminating unit A can be improved when the suspended wave eliminating unit A is in a tightening state, and the reinforcing plate 202c stabilizes the tightening state of the suspended wave eliminating unit A, so that the stability of the wave eliminating system is maintained.
The embodiment also provides an application of the suspension type wave-eliminating system in the water bloom blue algae water treatment engineering of the bridge reservoir, which comprises the following steps: for water eutrophication caused by water bloom algae breeding on the surface of a reservoir, a large amount of algae taking blue algae and green algae as dominant species grow on the surface of the water body to form a layer of green scum, so that harmful gas generated by decomposing organic matters accumulated on the bottom layer under anaerobic conditions and biotoxin generated by some plankton can also hurt fish. Because the eutrophic water contains nitrate and nitrite, people and livestock drink water with the content exceeding a certain standard for a long time, the water can be poisoned and pathogenic, and water resources can be polluted and cannot be reused. Therefore, a blocking line needs to be built on the surface of the reservoir to block water bloom and blue algae growing on the water surface to prevent the water resource from being polluted, but the method for grooving the surface layer of the underwater sediment in the embodiment is applied to construction engineering of the blocking line of the reservoir, such as underwater grooving, underwater anchoring, linear layout operation and the like, and is exemplified by a bridge reservoir, particularly, an anti-pollution blocking line applied to the bridge reservoir is exemplified by the bridge reservoir which is positioned in the city and east of thrips in Tianjin city, and is one of the important large reservoirs in China. The reservoir dam site is built at the outlet of the branch state of the thistle canal left, and is one of the main projects for treating the thistle canal. The area of the control flow area 2060km2 was 15.59 hundred million m3. The upstream main warehouse-in rivers are the river, the sand river and the Li river, and the average annual runoff is 5.06 hundred million m3. After the construction of the water inlet project of Luan in 1983, the water inlet project of Luan is formally incorporated in the bridge reservoir, and is managed as the only water source of Tianjin, the main functions of the water inlet project are mainly flood control and urban water supply, irrigation, power generation and the like are considered, and in the bridge reservoir, the reservoir hub project comprises a barrage, a water discharge hole, a spillway and a hydropower station. The barrage is a homogeneous earth dam, namely a water reservoir dam 100 in the embodiment, the total length of the barrage is 2222m, the maximum dam height is 24m, the dam top elevation is 28.72m, the hole diameter of a water discharging hole (concurrently generating hole) is 5m, the water discharging hole is a water discharging culvert A in the embodiment, running water in a bridge reservoir realizes operations such as reservoir water collection, water discharging and the like through the water discharging culvert A, four through-flow units are arranged in a power station behind the barrage, and the total assembly machine is 5000 kilowatts. The spillway is an open weir gate, an eight-hole gate, the clear width is 80m, the maximum flood discharge capacity is 4138m3/s, the direct influence range of the downstream of the reservoir is near to millions of people in low-lying areas of various counties (areas) such as thrips, bao Ding, ning river, yutian, hangu and the like, more than 300 mu of cultivated land is formed, the construction of the fluid intake project is carried out in the 1983, the fluid intake project management is carried out in the bridge reservoir formally, the unique water source area of Tianjin is formed, the main functions of the flood control and urban water supply are mainly taken into consideration, and the water supply safety of the downstream cities is directly influenced by the water quality of the bridge reservoir.
The input of nitrogen and phosphorus causes the water body of the bridge reservoir to show eutrophication trend. It is generally believed that algae will grow in large amounts when the N, P concentration in the body of water reaches 0.2mg/L and 0.02mg/L, respectively. In recent years, the average value of total nitrogen in bridge reservoirs is always higher than 1.15mg/L and the total phosphorus is higher than 0.025mg/L under the influence of upstream water supply and the surrounding environment of the reservoirs. The flood season is 6-9 months, a large amount of nitrogen and phosphorus loads are input into the reservoir along with runoff, a nutrition foundation is provided for the growth of blue algae, and preliminary conditions are created for the blue algae bloom. The rich nutrition also makes the growth of water grass such as water pondweed in the dominant population of the reservoir extremely large, and the water pondweed is fished out from the water surface of the reservoir area by approximately 9.5 ten thousand m < 3 > each year. The growth area of the potamogeton crispus is basically covered with the whole reservoir area except for the main river channel of the state river. In addition, the morphological characteristics of the bridge reservoir also provide favorable conditions for water eutrophication and cyanobacterial bloom outbreak. The water depth is small in the north, the light radiation can reach the deep underwater position relatively, so that the water temperature is high, the water flow speed is low, no matter whether wind exists or not, the effect of improving the flow state of the water is not great, and therefore the water is more suitable for the propagation and aggregation of algae, the propagation of algae is facilitated, and the area becomes a high-value area of reservoir phytoplankton. Under the influence of multiple conditions, blue algae bloom is extremely easy to form in summer of the bridge reservoir, and the safety of urban water supply is threatened. However, the blue algae bloom in the bridge reservoir is not afraid, because living blue algae growing naturally does not pollute the water quality; however, if the disposal is not enough, the water can be accumulated at the height of the water area (downwind direction) in front of the dam, and then the water is dead, rotted and polluted. Therefore, the natural characteristic of blue algae drift gathering must be utilized, and by means of the topography, wind power and water flow of the bridge reservoir, a blocking-guiding-algae removing facility is arranged on the drift gathering path, so that blue algae can be effectively gathered and removed, the blue algae disaster in the water area in front of the dam can be prevented, the blue algae population base number of the whole reservoir area can be reduced by removing a large amount of blue algae, the contained nutrient substances can be taken away, and the accumulation of nutrient salts in the water body and the development of blue algae bloom can be effectively restrained. At present, although emergency measures are taken before a dam to remove accumulated blue algae, water quality pollution is formed, the blue algae content in water supply is too high, and pollution substances released by decay and decomposition of the blue algae seriously affect the water quality of the water supply.
Algae bloom grows on the large water surface of the bridge reservoir, is concentrated on a warm water layer on the surface when the climate conditions are proper, migrates and gathers along with the direction of the surface of the aquatic product to the water area in front of the dam under the action of southeast monsoon, causes impact pollution (algae bloom outbreak), and enters a water supply channel system along with water flow. Therefore, the large water surface of the bridge reservoir is a source for algae bloom growth, and the migration and accumulation along with wind are important mechanisms for influencing water supply. Constructing an algae bloom blocking line at the front throat part of a reservoir dam (a northern bank dam to a southern bank grassland) so as to cut off a path for migration and accumulation of algae bloom towards the front of the dam, performing interception control on 98% of the reservoir large water surface at the upstream of the dam, and timely salvaging and clearing intercepted algae so as to prevent death, decay and pollution of water quality; the main engineering of the blocking defense line consists of a flexible intelligent enclosure with a distance of 2 channels of 200m, wherein the enclosure is provided with an upper water outlet surface, a lower water outlet surface, a bottom of a reservoir and two sides of the reservoir, the water bodies on the two sides are separated, the water flow on the surface of a wind generator is cut off, and the water bloom algae which migrate along with the water flow on the surface are intercepted. The bottom of the enclosing partition is provided with a water passing net window at the deep groove part of the original river channel at the bottom of the reservoir, so that water flow with lower deep algae content is allowed to pass through, and the water quantity required by normal water supply is supplemented.
The diversion wing film and the netlike filler are distributed in the area between the 2-channel enclosing partition corresponding to the water passing net window, namely the suspension type wave eliminating system in the embodiment is distributed in the 2-channel enclosing partition for inhibiting turbulence, stabilizing water body and promoting algae floating; therefore, the reticular filler is distributed below the water surface to keep the water surface open, the algae-rich water layer on the surface is convenient to form, and the floating algae are driven and enriched through the wind-generated surface flow, so that the removal is facilitated, and when the algae aggregation is large, the algae removal equipment is required to be called to support the removal. 2 50-ton algae slurry transport vessels are to be equipped for receiving and transporting algae slurry generated by the algae removal equipment, so as to ensure continuous operation of the algae removal equipment. A2-seat 2000m3 algae slurry buffer pool is built on the south shore for storing and naturally evaporating and concentrating the collected algae slurry, thereby completing the prevention and treatment of the algae bloom pollution in the bridge reservoir.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (1)
1. A suspended wave attenuation system, characterized in that: the floating type wave-attenuating device comprises a single floating wave-attenuating unit (A), wherein the single floating wave-attenuating unit (A) further comprises a net-shaped suspending module (100), the net-shaped suspending module (100) is suspended below the water surface, the net-shaped suspending module (100) further comprises a connecting belt (101) and a floating body module (200) which are arranged at the upper end, the floating body module (200) is connected with the net-shaped suspending module (100), the floating body module (200) comprises a first floating body (201) and a second floating body (202), the first floating body (201) is connected with the connecting belt (101), and the second floating body (202) is arranged at two ends of the connecting belt (101);
the suspended wave eliminating unit (A) further comprises a fixing module (300), the fixing module (300) further comprises a fixing pile (301) and a fixing rope (302), the fixing pile (301) is arranged at the bottom of the water, the second floating body (202) is connected with the fixing pile (301) through the fixing rope (302), the fixing rope (302) is further provided with a first floating body (201) which is tightly connected, the first floating body (201) is a floating ball, a plurality of floating balls are connected in series at intervals through a serial piece (201 a) to form a floating body belt which is connected with the connecting belt (101) in a matching mode, the floating body belt floats the net-shaped suspending module (100), the serial piece (201 a) is a rope made of polyethylene material, the floating balls penetrate through the floating balls and are sequentially connected into a straight line, the straight line is arranged above the connecting belt (101) in parallel, the net-shaped suspending module (100) is suspended on the water surface through a binding interface of the connecting belt (101), and the first floating body (201) is suspended on the water surface through the binding interface;
the bottom end of the second floating body (202) is provided with a connecting plate (202 a), the connecting plate (202 a) is also provided with a connecting hole (202 a-1), the connecting hole (202 a-1) is connected with the serial piece (201 a) in a matched mode, the bottom of the net-shaped suspension module (100) is also provided with a down-line piece (102), and the down-line piece (102) increases the bottom load of the net-shaped suspension module (100);
the floating type wave eliminating unit comprises a plurality of floating type wave eliminating units (A), wherein a certain distance and parallel overhang are sequentially arranged between the floating type wave eliminating units (A), the adjacent floating type wave eliminating units are connected through a top line piece (400), the top line piece (400) and the connecting belt (101) are arranged in a straight line perpendicular to each other, two ends of the top line piece (400) are connected with top line fixing piles (401), the top line fixing piles (401) are fixed on the water bottom, two second floating bodies (202) which are arranged at the outermost end of the top line piece (400) are symmetrically arranged, the fixed parts of the top line piece (400) are arranged below the water surface, the top line piece (400) can be always kept in a tensioned state along with the change of the water level, the second floating bodies (202) further comprise top line connecting plates (202 b), the top line connecting plates (202 b) are triangular stainless steel plates, the top line connecting holes (202 b-1) are formed in the top line connecting plates, and the top line connecting holes (202 b-1) are matched with the top line piece (202 b) and the top line connecting plates (202 c) are connected with the second floating bodies (202 c).
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| CN201810040514.8A CN108193640B (en) | 2018-01-16 | 2018-01-16 | Suspended wave eliminating system |
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