CN210946482U - Emergent transformation system of old bridge floor drainage and bridge - Google Patents
Emergent transformation system of old bridge floor drainage and bridge Download PDFInfo
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- CN210946482U CN210946482U CN201920888122.7U CN201920888122U CN210946482U CN 210946482 U CN210946482 U CN 210946482U CN 201920888122 U CN201920888122 U CN 201920888122U CN 210946482 U CN210946482 U CN 210946482U
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Abstract
The utility model discloses an emergent transformation system of old bridge floor drainage and bridge relates to municipal bridge engineering technical field, including vertical water drain pipe, longitudinal drain pipe, danger article identification sensor and emergency pipeline, the longitudinal drain pipe entry is connected with the vertical water drain pipe exit, danger article identification sensor locates the longitudinal drain pipe exit, when having danger article in the rainwater for discerning to pass through, send out danger article alarm, emergency pipeline includes emergency pipeline and first control switch; the first control switch is in an open state when receiving the dangerous chemical alarm, otherwise, the first control switch is in a closed state, and the non-emergency pipeline comprises a non-emergency pipeline and a second control switch; when the second control switch received danger article police dispatch newspaper, be off-state, otherwise for open mode, the utility model discloses can separate the rainwater that contains the pollutant and the rainwater that contains danger article to the rainwater that avoids containing pollutant or danger article directly flows into in the river body.
Description
Technical Field
The utility model relates to a municipal bridge engineering technical field, concretely relates to emergent transformation system of old bridge floor drainage and bridge.
Background
In recent years, with the development of social construction, on the basis of ensuring the quality of engineering construction, more and more attention is paid to the protection of the ecological environment, and therefore more and more attention is paid to bridge drainage of important sensitive urban lakes with high water quality requirements.
According to data, the initial rainwater runoff pollutant components of the road surface are complex during the operation of a highway or an urban bridge, and bridge surface runoff (especially initial runoff) generated by rainfall contains a certain amount of pollutants such as suspended particulate matters, organic matters, nutrient salts, heavy metals and the like, and if the pollutants are not treated, the pollutants are directly discharged into rivers and lakes, so that the water quality of the received water body is possibly deteriorated. Meanwhile, once accidents happen to various chemical dangerous article transport vehicles on the sensitive water area road sections, dangerous articles are directly discharged into water bodies, the water environment is greatly damaged, and even the water ecological environment is damaged.
On the other hand, from the current situation of drainage of domestic urban river-crossing bridges, most of the old bridges have the condition that bridge floor drainage facilities are lost or unsmooth, bridge floor drainage directly flows into river bodies through bridge floors or vertical drainage holes, and the water bodies are easily influenced.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide an emergent transformation system and bridge of old bridge floor drainage can separate the rainwater that contains the pollutant and the rainwater that contains the danger article to avoid containing the rainwater direct inflow river body of pollutant or danger article.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
in a first aspect, an emergency reconstruction system for drainage of old bridge deck is provided, which comprises:
the vertical water drain pipe is arranged on the bridge floor;
the longitudinal water drainage pipe is arranged along the bottom of the bridge floor, and an inlet of the longitudinal water drainage pipe is connected with an outlet of the vertical water drainage pipe;
the hazardous chemical substance identification sensor is arranged at the outlet of the longitudinal drain pipe and used for sending out a hazardous chemical substance alarm when identifying that hazardous chemical substances exist in passing rainwater;
the emergency pipeline comprises an emergency pipeline connected with the outlet of the longitudinal water drainage pipe and a first control switch arranged at the inlet of the emergency pipeline; the first control switch is in signal connection with the dangerous chemical identification sensor, and is in an open state when receiving a dangerous chemical alarm, or is in a closed state;
the non-emergency pipeline comprises a non-emergency pipeline connected with the outlet of the longitudinal water drainage pipe and a second control switch arranged at the inlet of the non-emergency pipeline; the second control switch is in signal connection with the dangerous chemical substance identification sensor, and is in a closed state when receiving a dangerous chemical substance alarm, or is in an open state.
On the basis of the technical scheme, a water pressure sensor is arranged in the non-emergency pipeline and is connected with two branches; one branch is connected with the rainwater treatment tank, and the other branch is connected with a municipal pipe network through a third control switch;
the water pressure sensor is in signal connection with a third control switch and is used for sending out a water pressure alarm when the water pressure of the non-emergency pipeline exceeds a preset water pressure; and the third control switch is in an open state when receiving the water pressure alarm, and is in a closed state otherwise.
On the basis of the technical scheme, the rainwater treatment pond includes equalizing basin and oil interceptor, the equalizing basin respectively with emergent pipeline of non-and oil interceptor intercommunication, the oil interceptor be used for with municipal pipe network intercommunication, the equalizing basin is used for right the rainwater that the emergent pipeline of non-passes through plays the cushioning effect, the oil interceptor is arranged in the great suspension oil of separation granule in the rainwater.
On the basis of the technical scheme, be equipped with a plurality of sand sediment casees on the longitudinal drain pipe, the sand sediment case includes the sand sediment box, locates the sand sediment bottom of the body portion of the sand sediment hole, locate the level sensor at sand sediment box top and locate import and export on the sand sediment box lateral wall, the longitudinal drain pipe with import and export intercommunication, the hole department of leaking sand is equipped with fourth control switch.
On the basis of the technical scheme, the longitudinal drain pipe further comprises a plurality of sections of drain pipes and rubber telescopic hoses, and two ends of each rubber telescopic hose are respectively connected with one drain pipe.
On the basis of the technical scheme, the hazardous chemical substance identification sensor comprises a conductivity detection sensor, a dielectric constant detection sensor, a pH value detection sensor and a second controller, wherein the second controller is respectively in signal connection with the conductivity detection sensor, the dielectric constant detection sensor and the pH value detection sensor, and is respectively in signal connection with the first control switch and the second control switch;
when one or more of the conductivity, the dielectric constant and the pH value detected by the conductivity detection sensor, the dielectric constant detection sensor and the pH value detection sensor exceeds a preset critical value, the second controller is used for controlling the second control switch to be closed, the first control switch is opened, and when any one of the conductivity, the dielectric constant and the pH value detected by the conductivity detection sensor, the dielectric constant detection sensor and the pH value detection sensor does not exceed the preset critical value, the second controller is used for controlling the second control switch to be opened, and the first control switch is closed.
On the basis of the technical scheme, emergent transformation system of drainage still includes a plurality of overflow pipes, overflow pipe import department is equipped with water identification sensor, and with longitudinal drain pipe intercommunication, the exit is equipped with fifth control switch, and with external environment intercommunication, the highest height of overflow pipe is higher than longitudinal drain pipe height, water identification sensor sends out dangerization article alarm when being used for discerning to have dangerization article in the rainwater that passes through, when fifth control switch receives dangerization article and reports to the police, is off-state, otherwise is on-state.
On the basis of the technical scheme, an emergency pool is connected at the outlet of the emergency pipeline, an emptying pipe is arranged at the bottom of the emergency pool, a control valve is arranged on the emptying pipe, and a liquid level sensor is arranged in the middle of the pool wall of the emergency pool.
On the basis of the technical scheme, the bottom of the emergency pool is provided with a slope inclining to the emptying pipe.
The second aspect still provides a bridge that is equipped with the emergent transformation system of above-mentioned old bridge floor drainage, the bridge includes the decking and locates the web of decking below, vertical water-drain pipe wears to locate in the decking, longitudinal drain pipe is fixed in on the web.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses an emergent transformation system of old bridge floor drainage can discern the danger article through danger article identification sensor, and through controlling first control switch and second control switch, make emergent pipeline or non-emergent pipeline and longitudinal drain pipe intercommunication, thereby separate the rainwater that contains the danger article, the rainwater that avoids containing the danger article directly flows into the river body, cause the environmental impact, and simultaneously, the rainwater that has also avoided containing the pollutant through non-emergent pipeline directly flows into the river body, cause the pollution of the river body.
Drawings
Fig. 1 is a schematic structural view of an emergency drainage modification system according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a bridge with a drainage emergency reconstruction system in an embodiment of the present invention;
fig. 3 is a schematic structural view of a sand box in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of an emergency pool in an embodiment of the present invention;
FIG. 5 is a schematic structural view of an oil separation tank according to an embodiment of the present invention;
fig. 6 is the embodiment of the utility model provides an in the embodiment structural schematic of danger article identification sensor.
In the figure: 1-vertical water drain pipe, 2-longitudinal water drain pipe, 21-water drain pipe, 22-rubber expansion hose, 3-hazardous chemical identification sensor, 31-conductivity detection sensor, 32-dielectric constant detection sensor, 33-pH value detection sensor, 34-second controller, 4-emergency pipeline, 41-emergency pipeline, 42-first control switch, 43-emergency pool, 44-emptying pipe, 45-liquid level sensor, 5-non-emergency pipeline, 51-non-emergency pipeline, 52-second control switch, 53-rainwater treatment pool, 54-regulation pool, 55-oil separation pool, 551-water passing opening, 552-water passing weir, 56-water pressure sensor, 57-third control switch, 6-sand settling tank, 61-a sand settling box body, 62-a sand discharging hole, 63-a water level sensor, 64-a fourth control switch, 7-an overflow pipe, 71-a water identification sensor, 72-a fifth control switch, 8-a bridge deck and 9-a web plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1 and 4, an embodiment of the present invention provides an old bridge deck drainage emergency reconstruction system, including a vertical drain pipe 1, a longitudinal drain pipe 2, a hazardous chemical substance identification sensor 3, an emergency pipeline 4 and a non-emergency pipeline 5, where the vertical drain pipe 1 is disposed on the bridge deck, the longitudinal drain pipe 2 is disposed along the bottom of the bridge deck, an inlet of the longitudinal drain pipe 2 is connected to an outlet of the vertical drain pipe 1, the hazardous chemical substance identification sensor 3 is disposed at an outlet of the longitudinal drain pipe 2, and is configured to send an alarm of the hazardous chemical substance when identifying that the hazardous chemical substance exists in the passing rainwater, and the emergency pipeline 4 includes an emergency pipeline 41 connected to the outlet of the longitudinal drain pipe and a first control switch 42 disposed at an inlet of the emergency pipeline 41; the first control switch 42 is in signal connection with the dangerous chemical identification sensor 3, and is in an open state when receiving the dangerous chemical alarm, or is in a closed state, the non-emergency pipeline 5 comprises a non-emergency pipeline 51 connected with the outlet of the longitudinal drain pipe 2 and a second control switch 52 arranged at the inlet of the non-emergency pipeline 51; the second control switch 52 is in signal connection with the dangerous chemical identification sensor 3, and is in a closed state when receiving the dangerous chemical alarm, or is in an open state otherwise.
The existing drainage system for the bridge deck of the old bridge only needs to ensure the traffic of the bridge deck, and drainage treatment when hazardous chemicals and other harmful substances appear on the bridge deck is omitted. The drainage emergency reconstruction system is arranged on the old bridge floor, hazardous chemical substances can be identified through the hazardous chemical substance identification sensor 3, the emergency pipeline 4 or the non-emergency pipeline 5 is communicated with the longitudinal drainage pipe 2 by controlling the opening and closing of the first control switch 42 and the second control switch 52, when the hazardous chemical substance identification sensor 3 detects and identifies the hazardous chemical substances, the first control switch 42 is controlled to be opened and the second control switch 52 is controlled to be closed, the longitudinal drainage pipe 2 is communicated with the emergency pipeline 4, so that the hazardous chemical substances are drained and collected for subsequent centralized treatment, when the hazardous chemical substance identification sensor 3 does not detect and identify the hazardous chemical substances, the first control switch 42 is controlled to be closed and the second control switch 52 is controlled to be opened, even if the longitudinal drainage pipe 2 is communicated with the non-emergency pipeline 5, so that rainwater which does not contain the hazardous chemical substances is collected and treated, finally, the treated rainwater is discharged into a municipal pipe network, namely the embodiment collects the rainwater and the rainwater containing hazardous chemicals respectively through the emergency pool 43, so that the problem that the quality of the water of the receiving water body is poor due to the fact that bridge deck runoff generated by rainfall is directly discharged into rivers and lakes without being treated is solved. Meanwhile, dangerous chemicals caused by accidents of various chemical dangerous article transport vehicles on sensitive water area road sections can be prevented from being directly discharged into the water body through the emergency pipeline, so that the water environment is greatly damaged, and the water ecological environment is damaged.
Wherein, the longitudinal drain pipe 2 adopts an HDPE water supply pipe and is installed and fixed by adopting a bracket. Because the pipe diameter of the longitudinal drain pipe 2 is affected by the rainstorm intensity and the pipeline water power, the pipe diameter specification of the longitudinal drain pipe 2 is derived and calculated according to the following formula: firstly, calculating the design flow:
in the formula, Q is the design flow and the unit is L/S; f is the confluence area with the unit of ha;
the runoff coefficient is 0.90; q is the rainstorm intensity in L/s-ha.
The rainstorm intensity adopts an intensity formula, and because the rainstorm intensity formulas of different regions are different, the rainstorm intensity is calculated by taking Liuzhou city as an example: q-1929.943 (1+0.776lgP)/(t +9.507)0.653Wherein the runoff time of the ground is 5min, and the recurrence period P is 5 years.
The hydraulic calculation of the pipeline can adopt the formula:
in the formula: v is the flow velocity, unit is m/s, R is the hydraulic radius, unit is m, I is the hydraulic gradient, and n is the roughness coefficient in the pipeline.
The pipe diameter of the longitudinal drain pipe 2 in Liuzhou city is generally within the range of 200-450 mm through calculation, and the design of the longitudinal drain pipe 2 transformed from the old bridge drainage system can be corrected correspondingly according to the bridge scale and the regional environment.
Referring to fig. 1, a water pressure sensor 56 is arranged in the non-emergency pipeline 5 and is connected with two branches; one branch is connected with the rainwater treatment tank 53, and the other branch is connected with a municipal pipe network through a third control switch 57; the water pressure sensor 56 is in signal connection with a third control switch 57, and the water pressure sensor 56 is used for sending out a water pressure alarm when detecting that the water pressure of the non-emergency pipeline 5 exceeds a preset water pressure; when the third control switch 57 receives the water pressure alarm, it is in an open state, otherwise it is in a closed state, since the initial rainwater has been treated by the rainwater treatment tank 53, the content of pollutants in the rainwater is less, and a heavy rain condition can occur on the bridge floor, and the load of the rainwater treatment tank 53 is large (the flow is large), that is, the drainage pressure of the non-emergency pipeline 5 is too large, the third control switch 57 is controlled to open by the arranged water pressure sensor 56, so that part of the rainwater is directly drained to the municipal pipe network through the pipeline where the third control switch 57 is located, the drainage pressure of the rainwater treatment tank 53 is relieved, the drainage capacity of the system is improved, and at this time, the rainwater passing through the pipeline where the third control switch 57 is located is the rainwater when the heavy rain, because the leaching effect exists in the early stage of the rain (the pipeline pressure in the early stage of the rain cannot be too large), therefore, the pollution load of the road, when rainstorm occurs and the pipeline pressure is too large, the rain passing through the pipeline where the third control switch 57 is located is clean rainwater, and can be directly discharged to a municipal pipe network.
Referring to fig. 1 and 5, the rainwater treatment tank 53 comprises an adjusting tank 54 and an oil separation tank 55, the adjusting tank 54 is respectively communicated with the non-emergency pipeline 5 and the oil separation tank 55, the oil separation tank 55 is communicated with a municipal pipe network, the adjusting tank 54 is used for buffering rainwater passing through the non-emergency pipeline 5, the oil separation tank 55 is used for separating suspended oil with large particles in the rainwater, the adjusting tank 54 and the oil separation tank 55 are arranged in the non-emergency pipeline 5, and the adjusting tank 54 and the oil separation tank 55 can treat initial rainwater with large pollutant content, wherein the adjusting tank 54 has a buffering effect on rainwater passing through the non-emergency pipeline 5, and can prevent the load of the rainwater treatment tank 53 from changing rapidly; the oil separation tank 55 separates and removes suspended oil with larger particles in the sewage by utilizing the specific gravity difference between the oil and the water, so that the rainwater passing through the regulating tank 54 and the oil separation tank 55 can reach the discharge standard; wherein, the oil separation wall is arranged at the left side of the oil separation tank 55, the water passing hole 551 is arranged at the lower part of the wall plate of the oil separation wall, and the oil stain oil with larger particles on the bridge surface in the drainage is removed and separated by utilizing the specific gravity difference between oil and water. A weir 552 is provided on the right side of the oil interceptor 55 to control the elevation of the water level in the oil interceptor 55 and to cushion the drainage load.
Referring to fig. 1 and 4, an emergency pool 43 is connected to the outlet of the emergency pipeline 41, an evacuation pipe 44 is arranged at the bottom of the emergency pool 43, a control valve is arranged on the evacuation pipe 44, a liquid level sensor 45 is arranged in the middle of the wall of the emergency pool 43, and the liquid level sensor 45 is connected with an alarm; the bottom of the emergency pool 43 is provided with a slope inclining towards the emptying pipe 44, and preferably, the slope of the bottom of the emergency pool 43 is set to be 1%; this emergency pool 43 can be put the danger chemical substance that the bridge floor leaked and collect, avoids losing the polluted environment. In addition, the upper portion of emergent pond 43 sets up into the manhole, and the bottom sets up evacuation pipe 44, and professional technical personnel accessible control bottom control valve is excreteed the collection and is handled dangerization article, also can get into through into the manhole and handle, guarantees the treatment effect. And a dangerous chemical liquid level sensor 45 is arranged in the middle of the pool wall, and when the liquid level sensor 45 detects that the liquid level of the dangerous chemical exceeds a certain limit value, an alarm gives an alarm to remind a manager to perform corresponding treatment.
In consideration of the characteristics of the regional environment and the system design, the volume V of the emergency pool 43 of the old bridge floor drainage emergency reconstruction system satisfies the following formula:
V＝(1+β)(V1+V2+V3+ΔV)
v1 is a single device for containing rainwater containing hazardous chemicalsWherein the tank truck has a tank body length of 9.2m, a major axis of 2.38m and a minor axis of 1.5m, i.e., V1 of 26.6m, based on the size of the tank truck3The V2 is the maximum fire-fighting water consumption of the old bridge deck drainage emergency reconstruction system when fire explosion and leakage accidents occur in the region, according to the building design fire protection standard (GB50016-2014), the V2 is the fire-fighting water consumption for 10min, the flow is 20L \ s, the V3 is the flushing water quantity when the accidents occur, the 3L \ square meter is taken according to the regulations in the building water supply and drainage design standard (GB50015-2009), the delta V is the reserved storage allowance of the emergency pool 43, and the β is the safety coefficient obtained according to the environmental accident probability.
Referring to fig. 1 and 3, a plurality of sand settling boxes 6 are arranged on the longitudinal drain pipe 2, each sand settling box 6 comprises a sand settling box body 61, a sand discharge hole 62 formed in the bottom of the sand settling box body 61, a water level sensor 63 formed in the top of the sand settling box body 61, and an inlet and an outlet formed in the side wall of the sand settling box body 61, the longitudinal drain pipe 2 is communicated with the inlet and the outlet, a fourth control switch 64 is arranged at the sand discharge hole 62, and the water level sensor 63 is in signal connection with the fourth control switch 64.
The arrangement of the sand boxes 6 at intervals on the longitudinal drains 2 is advantageous in ensuring that the longitudinal drains do not become clogged. Wherein, the debris dust of bridge floor is often more, and these materials can flow to vertical drain pipe 2 in along with the bridge floor rainwater earial drainage in, pile up through long-time accumulation, will influence vertical drain pipe 2's drainage ability greatly, in serious cases, probably block up vertical drain pipe 2. And can thoroughly solve this type of problem through sand setting tank 6, the exit of sand setting tank 6 is located the lateral wall that sand setting tank carried 61, and vertical drain pipe 2 is higher than the bottom elevation of sand setting tank 6 promptly, and when the rainwater that contains debris such as dust flowed to sand setting tank 6 through vertical drain pipe 2, debris such as most dust can precipitate to the bottom of the case of sand setting tank 6 to can guarantee vertical drain pipe 2's drainage efficiency. In addition, the water level sensor 63 is installed on the top of the sand box body 61, so that the function failure of the sand box 6 caused by excessive sediment of impurities such as dust can be prevented. When the sand box 6 is filled with sundries and the water level rises to the position of the water level sensor 63, the water level sensor 63 sends a signal to open the fourth control switch 64 out of the bottom sand-discharging hole 62, thereby achieving the purpose of automatically cleaning the sand box. Meanwhile, in order to facilitate maintenance and manual cleaning, an open type box door is adopted at the top of the sand caisson 6.
Referring to fig. 1, the longitudinal drain pipe 2 further comprises a plurality of sections of drain pipes 21 and flexible rubber hoses 22, and the two ends of the flexible rubber hoses 22 are respectively connected with the drain pipes 21, that is, the flexible rubber hoses 22 are installed on the longitudinal drain pipe 2 at intervals, which is beneficial to ensuring that the longitudinal drain pipe 2 is not damaged by stretching or compression. Wherein, the influence that the long span bridge received the temperature is great, and when the temperature was higher, the extension condition can appear along with the rising of temperature in longitudinal drain pipe 2, and when the low temperature, along with the temperature reduction and produce the compression condition, probably lead to longitudinal drain pipe 2 to suffer destruction under the extreme weather. After the rubber flexible hose 22 is installed, the deformation of the longitudinal drain pipe 2 can be realized by the stretching of the rubber flexible hose 22, the stress of the longitudinal drain pipe 2 is improved, and the service life of the longitudinal drain pipe 2 is prolonged.
Referring to fig. 6, the hazardous chemical identification sensor 3 includes a conductivity detection sensor 31, a dielectric constant detection sensor 32, a pH detection sensor 33, and a second controller 34, the second controller 34 is in signal connection with the conductivity detection sensor 31, the dielectric constant detection sensor 32, and the pH detection sensor 33, respectively, and the second controller 34 is in signal connection with a first control switch 42 and a second control switch 52, respectively;
the second controller 34 is configured to control the second control switch 52 to be turned off and the first control switch 42 to be turned on when one or more of the conductivity, the dielectric constant, and the pH detected by the conductivity detection sensor 31, the dielectric constant detection sensor 32, and the pH detection sensor 33 exceeds a preset threshold value, and the second controller 34 is configured to control the second control switch 52 to be turned on and the first control switch 42 to be turned off when any one of the conductivity, the dielectric constant, and the pH detected by the conductivity detection sensor 31, the dielectric constant detection sensor 32, and the pH detection sensor 33 does not exceed the preset threshold value.
Referring to fig. 1 and 2, the emergency drainage modification system further comprises a plurality of overflow pipes 7, water identification sensors 71 are arranged at inlets of the overflow pipes 7 and communicated with the longitudinal drainage pipes 2, fifth control switches 72 are arranged at outlets and communicated with the external environment, the maximum height of the overflow pipes 7 is higher than the height of the longitudinal drainage pipes 2, when the water identification sensors 71 are used for identifying dangerous chemicals in passing rainwater, dangerous chemical alarm is sent, and when the fifth control switches 72 receive the dangerous chemical alarm, the emergency drainage modification system is in a closed state, or the emergency drainage modification system is in an open state.
The water identification sensor 71 comprises a conductivity detection sensor, a dielectric constant detection sensor, a pH value detection sensor and a third controller, wherein the third controller is respectively in signal connection with the conductivity detection sensor, the dielectric constant detection sensor and the pH value detection sensor, and is in signal connection with a fifth control switch 72;
when one or more of the conductivity, the dielectric constant and the pH detected by the conductivity detection sensor, the dielectric constant detection sensor and the pH detection sensor exceeds a preset critical value, the third controller is used for controlling the fifth control switch 72 to be closed, and when any one of the conductivity, the dielectric constant and the pH detected by the conductivity detection sensor, the dielectric constant detection sensor and the pH detection sensor does not exceed the preset critical value, the third controller is used for controlling the fifth control switch 72 to be opened, so that redundant rainwater can flow into the river through the overflow pipe.
The overflow pipes 7 are arranged at intervals on the longitudinal drainage pipes 2, which configuration is advantageous for ensuring the drainage capacity of the bridge deck. In the large-span bridges, the bridge range and the catchment area are large, some bridges are in the rainy areas in the south, the pipe diameter of the longitudinal drain pipe 2 obtained by a pipeline hydraulic calculation formula is large, and considering the attractive appearance and the stress of the bridges, the pipe diameter of the longitudinal drain pipe 2 of the traditional bridge deck drainage is generally not more than 400mm, so that the drainage capacity of some large-span bridges cannot be obviously met, and if the extra heavy rainstorm occurs in the areas, the drainage capacity of the bridge longitudinal drain pipe 2 cannot meet the actual requirement, the excessive rainwater can be easily caused to stay on the bridge deck in a large scale in a short time, and then the traffic safety of the bridge deck is affected.
And through the setting of overflow pipe 7, at the rainfall initial stage, vertical drain pipe 2 guides the bridge floor runoff smoothly to the municipal pipe network that emergent transformation system of drainage communicates at last. Along with the rainfall increase gradually, when longitudinal drain pipe 2 sluicing ability can not satisfy the requirement, the rainwater will directly flow into in the river through overflow pipe 7. Wherein, because the existence of rainfall initial stage drip washing effect, the pollution load of road surface runoff mainly concentrates on the rainfall initial stage, and the flow in the longitudinal drain pipe 2 of rainfall initial stage still is in normal range, rainwater this moment can be handled by the rainwater treatment pond, then get into municipal pipe network, and when the precipitation is too big, this moment, pollution load is lower in the rainwater that flows in the longitudinal drain pipe 2, can reach and directly discharge to in the river, to sum up, this emergent transformation system of old bridge floor drainage can successfully lead the more initial rainwater of pollutant content to municipal pipe network, can guarantee the bridge floor drainage ability again.
In addition, in order to prevent bridge deck hazardous chemicals from leaking suddenly and flowing out of the overflow pipe 7, the hazardous chemicals identification sensor 3 is arranged at the water outlet of the overflow pipe 7, and when the flow in the longitudinal drain pipe 2 is too large and the hazardous chemicals identification sensor 3 does not detect and identify that the rainwater in the longitudinal drain pipe 2 contains hazardous chemicals, the hazardous chemicals identification sensor 3 controls the fifth control switch 72 to be opened, so that the rainwater on the bridge deck can overflow from the overflow pipe 7 to the river; when dangerous chemicals are contained in the rainwater in the longitudinal drain pipe 2 through detection and identification of the dangerous chemicals identification sensor 3, the dangerous chemicals identification sensor 3 controls the fifth control switch 72 to be turned off, so that the rainwater containing the dangerous chemicals can be prevented from overflowing from the overflow pipe 7 to the river to cause pollution.
Referring to fig. 2, the embodiment further provides a bridge provided with the above-mentioned old bridge deck drainage emergency reconstruction system, which includes a bridge deck 8 and a web 9 disposed below the bridge deck 8, wherein the vertical water drain pipe 1 is inserted into the bridge deck 8, and the longitudinal water drain pipe 2 is fixed on the web 9.
The drainage emergency reconstruction system is arranged on the old bridge floor, hazardous chemical substances can be identified through the hazardous chemical substance identification sensor 3, and the emergency pipeline 4 or the non-emergency pipeline 5 is communicated with the longitudinal drainage pipe 2 by controlling the opening and closing of the first control switch 42 and the second control switch 52, wherein when the hazardous chemical substance identification sensor 3 detects and identifies the hazardous chemical substances, the first control switch 42 is controlled to be opened and the second control switch 52 is controlled to be closed, namely the longitudinal drainage pipe 2 is communicated with the emergency pipeline 4, so that the hazardous chemical substances are collected in the emergency pool 43 for subsequent centralized treatment, when the hazardous chemical substance identification sensor 3 does not detect and identify the hazardous chemical substances, the first control switch 42 is controlled to be closed and the second control switch 52 is controlled to be opened, namely the longitudinal drainage pipe 2 is communicated with the non-emergency pipeline 5, so that rainwater containing the hazardous chemical substances passes through the rainwater treatment pool 53, and finally arrange to the municipal pipe network in, this embodiment is accomplished the rainwater that contains the danger chemicals to the bridge floor through emergent pond 43 and is collected the operation promptly, accomplishes through rainwater treatment tank 53 and handles the rainwater for containing the danger chemicals.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. The utility model provides an emergent transformation system of old bridge floor drainage which characterized in that includes:
the vertical water drain pipe (1), the vertical water drain pipe (1) is arranged on the bridge floor;
the longitudinal drain pipe (2) is arranged along the bottom of the bridge floor, and an inlet of the longitudinal drain pipe (2) is connected with an outlet of the vertical drain pipe (1);
the hazardous chemical substance identification sensor (3) is arranged at the outlet of the longitudinal drain pipe (2) and is used for sending out a hazardous chemical substance alarm when the hazardous chemical substance is identified in the passing rainwater;
the emergency pipeline (4) comprises an emergency pipeline (41) connected with an outlet of the longitudinal water drainage pipe and a first control switch (42) arranged at an inlet of the emergency pipeline (41); the first control switch (42) is in signal connection with the dangerous chemical substance identification sensor (3), and is in an open state when receiving a dangerous chemical substance alarm, or is in a closed state;
the non-emergency pipeline (5) comprises a non-emergency pipeline (51) connected with the outlet of the longitudinal water drainage pipe (2) and a second control switch (52) arranged at the inlet of the non-emergency pipeline (51); the second control switch (52) is in signal connection with the dangerous chemical substance identification sensor (3), and is in a closed state when receiving the dangerous chemical substance alarm, or is in an open state.
2. The emergency reconstruction system for drainage of old bridge deck according to claim 1, wherein: a water pressure sensor (56) is arranged in the non-emergency pipeline (5), and two branches are connected behind the non-emergency pipeline; one branch is connected with the rainwater treatment pool (53), and the other branch is connected with the municipal pipe network through a third control switch (57);
the water pressure sensor (56) is in signal connection with a third control switch (57), and the water pressure sensor (56) is used for sending out a water pressure alarm when detecting that the water pressure of the non-emergency pipeline (5) exceeds a preset water pressure; and the third control switch (57) is in an open state when receiving the water pressure alarm, and is in a closed state otherwise.
3. The emergency reconstruction system for drainage of old bridge deck according to claim 2, wherein: rainwater treatment pond (53) include equalizing basin (54) and oil interceptor (55), equalizing basin (54) respectively with non-emergency pipeline (5) and oil interceptor (55) intercommunication, oil interceptor (55) are used for and municipal pipe network intercommunication, equalizing basin (54) are used for right the rainwater that non-emergency pipeline (5) passed through plays the cushioning effect, oil interceptor (55) are arranged in separating the great suspension oil of granule in the rainwater.
4. The emergency reconstruction system for drainage of old bridge deck according to claim 1, wherein: be equipped with a plurality of sand setting boxes (6) on vertical drain pipe (2), sand setting box (6) include sand setting box (61), locate sand setting box (61) bottom let out husky hole (62), locate water level sensor (63) at sand setting box (61) top with locate import and export on sand setting box (61) lateral wall, vertical drain pipe (2) with import and export intercommunication, it is equipped with fourth control switch (64) to let out husky hole (62) department.
5. The emergency reconstruction system for drainage of old bridge deck according to claim 1, wherein: the longitudinal drain pipe (2) further comprises a plurality of sections of drain pipes (21) and rubber telescopic hoses (22), and two ends of each rubber telescopic hose (22) are respectively connected with one drain pipe (21).
6. The emergency reconstruction system for drainage of old bridge deck according to claim 1, wherein: the hazardous chemical substance identification sensor (3) comprises a conductivity detection sensor (31), a dielectric constant detection sensor (32), a pH value detection sensor (33) and a second controller (34), wherein the second controller (34) is in signal connection with the conductivity detection sensor (31), the dielectric constant detection sensor (32) and the pH value detection sensor (33) respectively, and the second controller (34) is in signal connection with the first control switch (42) and the second control switch (52) respectively;
when one or more of the conductivity, the dielectric constant and the pH value detected by the conductivity detection sensor (31), the dielectric constant detection sensor (32) and the pH value detection sensor (33) exceed preset critical values, the second controller (34) is used for controlling the second control switch (52) to be closed, the first control switch (42) is opened, and when any one of the conductivity, the dielectric constant and the pH value detected by the conductivity detection sensor (31), the dielectric constant detection sensor (32) and the pH value detection sensor (33) does not exceed the preset critical values, the second controller (34) is used for controlling the second control switch (52) to be opened, and the first control switch (42) is closed.
7. The emergency reconstruction system for drainage of old bridge deck according to claim 1, wherein: emergent transformation system of drainage still includes a plurality of overflow pipes (7), overflow pipe (7) import department is equipped with water identification sensor (71), and with vertical drain pipe (2) intercommunication, the exit is equipped with fifth control switch (72) to communicate with external environment, the highest height of overflow pipe (7) is higher than vertical drain pipe (2) height, when water identification sensor (71) are arranged in discerning the rainwater that passes through and have danger article, send danger article alarm, when danger article warning is received in fifth control switch (72), be the closed condition, otherwise for the open condition.
8. The emergency reconstruction system for drainage of old bridge deck according to claim 1, wherein: emergent pipeline (41) exit is connected an emergent pond (43), the bottom in emergent pond (43) is equipped with evacuation pipe (44), be equipped with the control valve on evacuation pipe (44), and the pool wall middle part in emergent pond (43) is equipped with level sensor (45).
9. An emergency reconstruction system for the drainage of old bridge decks according to claim 8, characterized in that the volume V of said emergency basin (43) satisfies the following formula:
V＝(1+β)(V1+V2+V3+ΔV)
the emergency drainage reconstruction system comprises an emergency pool (43), a V1, a V2, a V3 and a β, wherein the V1 is the maximum capacity of a single device used for containing rainwater containing hazardous chemicals, the V2 is the maximum fire-fighting water consumption of the emergency drainage reconstruction system of the old bridge deck when a fire explosion and a leakage accident occur in a set area, the V3 is the flushing water quantity when the accident occurs, the DeltaV is the reserved storage allowance of the emergency pool (43), and the β is the safety coefficient of the old bridge.
10. A bridge provided with the old bridge deck drainage emergency reconstruction system of claim 1, wherein: the bridge includes decking (8) and locates web (9) of decking (8) below, vertical downcomer (1) is worn to locate in decking (8), longitudinal drain pipe (2) are fixed in on web (9).
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| CN201920888122.7U CN210946482U (en) | 2019-06-13 | 2019-06-13 | Emergent transformation system of old bridge floor drainage and bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110258323A (en) * | 2019-06-13 | 2019-09-20 | 中铁大桥科学研究院有限公司 | A kind of old bridge bridge deck drainage emergent reform system and bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110258323A (en) * | 2019-06-13 | 2019-09-20 | 中铁大桥科学研究院有限公司 | A kind of old bridge bridge deck drainage emergent reform system and bridge |
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