CN110670705A

CN110670705A - Bridge floor pollution accident emergency buffer pool

Info

Publication number: CN110670705A
Application number: CN201910915693.XA
Authority: CN
Inventors: 陈远新; 张云林; 邓细珍; 廖立凯
Original assignee: Jiangxi Tongji Design Group Ltd By Share Ltd
Current assignee: Jiangxi Tongji Design Group Ltd By Share Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-01-10

Abstract

The invention relates to the field of bridge drainage facilities, and discloses a bridge floor pollution accident emergency buffer pool which comprises a mud sinking well, wherein the right end of the mud sinking well is communicated with a first valve well, the right end of the first valve well is communicated with an emergency pool, a water collecting pit is arranged in the emergency pool and is communicated with a second valve well, and a liquid level detector and a water quality early warning detection system are arranged in the water collecting pit. The emergency pool is reasonable in structure and novel in design, when no accident occurs on the bridge floor, the emergency pool is only a drainage channel, and rainwater is directly drained into a water body; when the bridge floor occured accident, quality of water early warning detecting system in the emergency tank can discern the polluted water quality fast, prevents that liquid chemistry hazardous articles are arranged outward, collects, keeps in it, waits for the professional to adopt the removal water pump drainage and handle separately, avoids polluting the water, and the practicality is strong, and the reliability is high.

Description

Bridge floor pollution accident emergency buffer pool

Technical Field

The invention relates to the field of bridge drainage facilities, in particular to an emergency buffer pool for bridge floor pollution accidents.

Background

Along with the social and economic development, the traffic volume of all places is continuously increased, a large number of bridges are built in a plurality of areas, and bridge deck drainage is mainly led to the bottom of a beam through drainage holes and directly drained into a water body, so that the water body is threatened. When a vehicle filled with the liquid chemical hazardous articles has an accident on the bridge floor, liquid on the vehicle can flow to the water drainage hole along the bridge floor and directly drain into a water body to pollute the water body. Therefore, when the drainage design of the bridge deck is carried out, the design of the pollution accident emergency buffer pool is considered, and the dangerous goods accident runoff is ensured to the accident emergency buffer pool instead of directly entering the water body.

Disclosure of Invention

The invention aims to provide a bridge floor pollution accident emergency buffer pool which can monitor the quality parameters of bridge floor runoff water in real time, can immediately recognize and alarm to respond when an accident occurs, collects and temporarily stores liquid chemical dangerous goods, and avoids polluting water bodies so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an emergent buffer pool of bridge floor pollution accident, includes the mud sinking well, and mud sinking well right-hand member intercommunication has a valve well, and a valve well right-hand member intercommunication has emergent pond, and emergent pond inside is equipped with the sump pit, and the sump pit intercommunication has No. two valve wells, sump pit internally mounted has liquid level detector and quality of water early warning detecting system.

As a further scheme of the invention: and the left side of the mud trap is communicated with a water inlet pipe.

As a further scheme of the invention: a valve is installed in the first valve well.

As a further scheme of the invention: and a second valve is arranged in the second valve well.

As a further scheme of the invention: and the outer side of the second valve well is communicated with a water outlet pipe.

As a still further scheme of the invention: and an overflow pipe is communicated between the outer side of the mud trap and the water outlet pipe.

Compared with the prior art, the invention has the beneficial effects that:

the bridge floor pollution accident emergency buffer pool is reasonable in structure and novel in design, when an accident does not occur on the bridge floor, the emergency pool is only a drainage channel, and rainwater is directly drained into a water body; when the bridge floor occured accident, quality of water early warning detecting system in the emergency tank can discern the polluted water quality fast, prevents that liquid chemistry hazardous articles are arranged outward, collects, keeps in it, waits for the professional to adopt the removal water pump drainage and handle separately, avoids polluting the water, and the practicality is strong, and the reliability is high.

Drawings

FIG. 1 is a schematic plane structure diagram of an emergency buffer pool for a bridge floor pollution accident.

Fig. 2 is a schematic cross-sectional view of a-a in fig. 1.

FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1.

In the figure: 1-water inlet pipe, 2-mud sinking well, 3-first valve well, 4-first valve, 5-emergency pool, 6-water collecting pit, 7-liquid level detector, 8-water quality early warning detection system, 9-second valve well, 10-second valve, 11-water outlet pipe and 12-overflow pipe.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Referring to fig. 1 to 3, in the embodiment of the invention, a bridge floor pollution accident emergency buffer pool comprises a mud pit 2, an overflow pipe 12 is communicated between the outer side of the mud pit 2 and a water outlet pipe 11, the left side of the mud pit 2 is communicated with a water inlet pipe 1, the right end of the mud pit 2 is communicated with a first valve well 3, a first valve 4 is installed inside the first valve well 3, the right end of the first valve well 3 is communicated with an emergency pool 5, the bridge floor pollution accident emergency buffer pool is characterized in that a water collecting pit 6 is arranged inside the emergency pool 5, the water collecting pit 6 is communicated with a second valve well 9, the outer side of the second valve well 9 is communicated with the water outlet pipe 11, a second valve 10 is installed inside the second valve well 9, and a liquid level detector 7 and a water quality early warning detection system 8 are installed inside.

The invention discloses a method for calculating the capacity of an emergency buffer pool for a bridge floor pollution accident, which comprises the following steps:

according to the regulations of the technical requirements for preventing and controlling water pollution in an accident state (QSY 1190-2013) and the environmental protection design specifications of chemical engineering construction projects (GB 50483-2009), the volume of the bridge emergency buffer pool can be determined according to the following formula:

V_{emergency buffer pool}=（V₁+V₂+V_{Rain water}）_max-V₃

In the formula: (V)₁+V₂+V_{Rain water}）_maxMaximum calculated amount of accident waste water, m³

V₁M is the storage capacity of a tank truck for transporting harmful liquids³

V₂The maximum fire-fighting water consumption m is used when a vehicle loaded with harmful liquid is subjected to fire explosion and leakage accidents³

V_{Rain water}M is the local maximum amount of rainfall that may enter the waste water collection system in the event of an accident³

V₃The sum of cofferdam and fireproof inner clearance capacity of a device area or a storage tank area of the accident wastewater collection system and the capacity of an accident wastewater guide and discharge pipeline is m³

The specific calculation method comprises the following steps:

（1）V₁according to the standard size of the tank truck in China, the tank truck has the length of 9.2m, the long axis of 2.38m and the short axis of 1.5m,

V₁= can length x major axis x minor axis x0.81=26.6 m³

（2）V₂Taking the water consumption for fire fighting of 10min, and taking 20L/s and V according to the fire protection code of architectural design (GB 50016-₂=0.02x10x60=12 m³

（3）V_{Rain water}According to the formula of the intensity of rainstorm

V_{Rain water}=Qt

According to the relevant content of the design Specification for outdoor drainage (GB50014-2006) (2016 edition), the amount of rainwater is calculated according to the formula: q is F.psi.q

In the formula: q is rainwater design flow, L/s

F is the catchment area of the bridge in case of accident, hm²

Psi is runoff coefficient

q is the local design storm intensity, L/(s.hm)²)

（4）V₃Generally, there is some amount of room left for the calculation of the emergency pool.

The working principle of the invention is as follows: the bridge floor pollution accident emergency buffer pool comprises a water inlet pipe 1, a mud sinking well 2, a first valve well 3, an emergency pool 5, a second valve well 9, a water outlet pipe 11 and an overflow pipe 12. The bridge drain pipe is fixed under the bridge floor by the support, lays in the same direction as bridge longitudinal slope, arranges the emergent buffer pool of accident in bridge both sides or one side bank, and emergent buffer pool inlet tube links to each other with the bridge drain pipe.

According to different operating conditions, the bridge floor pollution accident emergency buffer pool makes different response and processing schemes, and comprises the following steps:

1. when the bridge floor does not take place the accident in rainy day, No. 4 valves and No. two valves 10 are normally open state, and the rainwater is discharged into mud well 2 through inlet tube 1, and the rainwater is discharged into emergency pool 5 through a valve well 3 behind the mud sinking, converges sump 6 again, gets into outlet pipe 11 through No. two valve wells 9, finally discharges into the water.

2. When the bridge floor accident takes place in rainy day, when there is the liquid chemistry hazardous articles to leak, the liquid chemistry hazardous articles runoff to sump pit 6 along with the bridge floor rainwater together, quality of water early warning detecting system 8 can detect out harmful liquid rapidly, the sensor that corresponds will take place the effect, close No. two valves 10 immediately, and start alarm system, inform the professional to handle, at this moment, valve 4 is still the open mode, harmful liquid can normally get into emergency pool 5, when the water level rises to the highest liquid level gradually, the sensor that liquid level detector 7 corresponds will take place the effect, close valve 4. At this time, the leaked dangerous goods are completely collected into the emergency pool, but rainwater is still gathered at the upstream, and the rainwater can be discharged through the overflow pipe 12 and is directly discharged into the water body.

3. When an accident happens to the bridge floor in sunny days and a liquid chemical dangerous article leaks, the fire truck or the sprinkler can wash the bridge floor, the liquid chemical dangerous article is drained into the water collecting pit along the runoff of the bridge floor, the water quality early warning detection system 8 can rapidly detect out the harmful liquid, the corresponding sensor can act to immediately close the second valve 10 and start the alarm system to inform a professional to treat, at the moment, the first valve 4 is still in an open state, all the harmful liquid can normally enter the emergency pool 5, and the harmful liquid sewage body can be effectively prevented.

4. After the liquid chemical hazardous articles in the emergency pool are pumped and discharged, the first valve 4 and the second valve 10 are normally opened, and the normal working condition is recovered.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides an emergent buffer pool of bridge floor pollution accident, includes mud pit (2), mud pit (2) right-hand member intercommunication has a valve well (3), and a valve well (3) right-hand member intercommunication has emergent pond (5), its characterized in that, emergent pond (5) inside is equipped with sump pit (6), and sump pit (6) intercommunication has No. two valve wells (9), sump pit (6) internally mounted has liquid level detector (7) and quality of water early warning detecting system (8).

2. The bridge deck pollution accident emergency buffer pool of claim 1, wherein a water inlet pipe (1) is communicated with the left side of the mud sinking well (2).

3. A bridge deck pollution accident emergency buffer pool according to claim 1 or 2, wherein the first valve well (3) is internally provided with a first valve (4).

4. The bridge deck pollution accident emergency buffer pool of claim 3, wherein the second valve (10) is installed inside the second valve well (9).

5. The bridge deck pollution accident emergency buffer pool of claim 4, wherein the outside of the second valve well (9) is communicated with a water outlet pipe (11).

6. The bridge deck pollution accident emergency buffer pool of claim 5, wherein an overflow pipe (12) is communicated between the outer side of the mud sinking well (2) and the water outlet pipe (11).