A hazardous chemical goods container yard wastewater collection system

Abstract

The application discloses a hazardous chemical goods container yard wastewater collecting system, which comprises a cofferdam wall, a plurality of container yard areas are arranged in the cofferdam wall at equal intervals, a main drainage ditch is arranged in the cofferdam wall, a first branch drainage ditch is arranged outside the container yard area, the plurality of first branch drainage ditches are communicated with the main drainage ditch, the main drainage ditch penetrates through the cofferdam wall and is communicated with a municipal rainwater pipe, and a fire accident pool and an initial rainwater and sewage collecting pool are respectively communicated with one side of the main drainage ditch. The application can collect and dispose various wastewaters in the factory area in time, in order and effectively, can satisfy relevant requirements of environmental protection, and reduces the influence degree on the environment. Especially in the case of environmental risk accidents, the application can effectively control the pollution risk of the fire accident wastewater on the surrounding water environment and soil.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of environmental protection engineering, and particularly relates to a waste water collecting system for dangerous goods container yard. BACKGROUND

[0002] The dangerous goods container yard has obvious environmental risk sensitivity. If the dangerous goods leakage liquid, initial contaminated rainwater and fire-fighting accident water in the yard area are not properly collected and treated, serious environmental impact will be caused, especially the fire-fighting accident water caused by major dangerous goods accidents, which will cause environmental risk accidents to the surrounding surface water and soil. In order to meet the requirements of environmental protection, a perfect and operable waste water collecting system needs to be constructed in the dangerous goods container yard to reduce the degree of environmental impact caused by environmental risk accidents.

[0003] The waste water collecting system for the dangerous goods container yard has technical defects and problems, such as direct discharge of initial rainwater and sewage outside the plant area, inability of dangerous goods leakage liquid to be discharged into the accident pool, inability of fire-fighting accident water to be normally discharged into the accident pool, and even the risk of rainstorm waste water and fire-fighting accident water flowing into the plant area in the extreme condition of rainstorm, and unreasonable setting of switching gate valves, which cannot guarantee normal waste water collection.

[0004] Therefore, a new waste water collecting system for the dangerous goods container yard is needed to solve the above problems. SUMMARY

[0005] To solve the above technical problems, the present application provides a waste water collecting system for the dangerous goods container yard.

[0006] To achieve the above purpose, the present application provides a waste water collecting system for the dangerous goods container yard, which comprises a cofferdam wall, a plurality of container yard areas are arranged at equal intervals in the cofferdam wall, a main drainage ditch is arranged in the cofferdam wall, a first sub-drainage ditch is arranged on the outer side of the container yard area, a plurality of first sub-drainage ditches are respectively communicated with the main drainage ditch, the main drainage ditch penetrates the cofferdam wall and is communicated with a municipal rainwater pipe, and a fire-fighting accident water pool and an initial rainwater and sewage collecting pool are respectively communicated with one side of the main drainage ditch.

[0007] Preferably, a maintenance area is arranged in the cofferdam wall, an office and living area is arranged on one side of the cofferdam wall close to the maintenance area, a sewage treatment station is arranged on one side of the office and living area away from the maintenance area, the office and living area and the sewage treatment station are located on one side of the main drainage ditch away from the fire-fighting accident water pool, and the maintenance area and the office and living area are respectively communicated with the sewage treatment station.

[0008] Preferably, the sewage treatment station is connected with a municipal sewage pipe, and the initial rainwater and sewage collection tank is connected with the sewage treatment station through a water pump.

[0009] Preferably, a first gate valve is connected between the main drainage ditch and the fire accident water pool, a second gate valve is connected between the main drainage ditch and the initial rainwater and sewage collection tank, a third gate valve is connected between the main drainage ditch and the municipal sewage pipe, and a fourth gate valve is connected between the fire accident water pool and the initial rainwater and sewage collection tank.

[0010] Preferably, a second branch drainage ditch is arranged on the side of the maintenance area away from the container yard area, and the second branch drainage ditch is connected with the main drainage ditch.

[0011] Compared with the prior art, the present application has the following advantages and technical effects: by arranging the reinforced concrete cofferdam wall with a certain height, the environmental risk accident fire accident water, rainwater and other waste water can be prevented from overflowing the plant area in extreme conditions; the first branch drainage ditch is arranged around the container yard area to ensure that the leakage liquid fire is controlled within the unit area, to avoid the chain reaction of the container yard, and to effectively collect and guide the fire accident water. The present application can timely, orderly and effectively collect and dispose various waste water in the plant area, can meet the relevant requirements of environmental protection, and can reduce the degree of influence on the environment. In particular, in the case of environmental risk accidents, the pollution risk of fire accident waste water to the surrounding water environment and soil can be effectively controlled. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings, and their description, are presented to explain the application and are not intended to limit the application. In the drawings:

[0013] Figure 1 FIG. 1 is a structural schematic view of a hazardous chemical goods container yard waste water collection system;

[0014] In the drawings: 1, cofferdam wall; 2, container yard area; 3, main drainage ditch; 4, first branch drainage ditch; 5, municipal rainwater pipe; 6, fire accident water pool; 7, initial rainwater and sewage collection tank; 8, maintenance area; 9, office and living area; 10, sewage treatment station; 11, municipal sewage pipe; 12, water pump; 13, first gate valve; 14, second gate valve; 15, third gate valve; 16, fourth gate valve; 17, second branch drainage ditch. DETAILED DESCRIPTION

[0015] With reference to the accompanying drawings and specific embodiments, the present application will be described in further detail below.

[0016] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0017] Referring to Figure 1 As shown in the figure, the present embodiment provides a dangerous chemical goods container yard wastewater collection system, which comprises a cofferdam wall 1, a plurality of container yard areas 2 are arranged at equal intervals in the cofferdam wall 1, a main drainage ditch 3 is arranged in the cofferdam wall 1, a first sub-drainage ditch 4 is arranged outside the container yard area 2, a plurality of first sub-drainage ditches 4 are respectively communicated with the main drainage ditch 3, the main drainage ditch 3 penetrates through the cofferdam wall 1 and is communicated with a municipal rainwater pipe 5, and a fire accident pool 6 and a preliminary rain and sewage collection pool 7 are respectively communicated with one side of the main drainage ditch 3.

[0018] Since the dangerous chemical goods container yard cannot be provided with unit firewalls like oil storage areas, a certain height of explosion-proof reinforced concrete cofferdam wall 1 is arranged to prevent various wastewater such as fire accident water, rain and sewage from overflowing the plant area in the case of extreme conditions. The first sub-drainage ditch 4 is arranged around the container yard area 2 to ensure that the leakage liquid fire is controlled within the unit area, avoid the chain reaction of the container yard, and effectively collect and drain the fire accident water. The present application can timely, orderly and effectively collect and dispose various wastewater in the plant area, can meet the relevant requirements of environmental protection, and reduce the degree of influence on the environment. Especially in the case of environmental risk accidents, the pollution risk of fire accident wastewater to the surrounding water environment and soil can be effectively controlled.

[0019] The first sub-drainage ditch 4 has a net width of 50 cm and a net depth of 80 cm; the main drainage ditch 3 is arranged in the container yard area 2, has a net width of 150 cm and a net depth of 200 cm, is communicated with a plurality of first sub-drainage ditches 4, and establishes an independent and complete drainage ditch system for the container yard area 2. At the same time, the elevation of the container yard area 2 should be 5-10 cm lower than the elevations of the four sides, which can ensure that the fire accident water in the yard area is effectively collected and drained into the drainage ditch.

[0020] Further optimization scheme, the cofferdam wall 1 is provided with a maintenance area 8, one side of the cofferdam wall 1 close to the maintenance area 8 is provided with an office and living area 9, the side of the office and living area 9 away from the maintenance area 8 is provided with a sewage treatment station 10, the office and living area 9 and the sewage treatment station 10 are located on the side of the main drainage ditch 3 away from the fire accident pool, and the maintenance area 8 and the office and living area 9 are respectively communicated with the sewage treatment station 10. Further optimization scheme, the cofferdam wall 1 is provided with a maintenance area 8, one side of the cofferdam wall 1 close to the maintenance area 8 is provided with an office and living area 9, the side of the office and living area 9 away from the maintenance area 8 is provided with a sewage treatment station 10, the office and living area 9 and the sewage treatment station 10 are located on the side of the main drainage ditch 3 away from the fire accident pool, and the maintenance area 8 and the office and living area 9 are respectively communicated with the sewage treatment station 10.

[0021] Further optimization scheme, sewage treatment station 10 is communicated with municipal sewage pipe 11, the initial rainwater and sewage collection tank 7 is communicated with sewage treatment station 10 through water pump 12.

[0022] Further optimization scheme, the first gate valve 13 is communicated between the main drainage ditch 3 and the fire emergency pool 6, the second gate valve 14 is communicated between the main drainage ditch 3 and the initial rainwater and sewage collection tank 7, the third gate valve 15 is communicated between the main drainage ditch 3 and the municipal sewage pipe 11, the fourth gate valve 16 is communicated between the fire emergency pool 6 and the initial rainwater and sewage collection tank 7.

[0023] The main drainage ditch 3 is communicated with the initial rainwater and sewage pool and the municipal rainwater pipe 5 respectively, the control well is arranged at the communication place of the main drainage ditch 3, the initial rainwater and sewage pool and the municipal rainwater pipe 5 in the container yard area 2, the second gate valve 14 is installed for control, and the gate valve has the functions of manual control and remote automatic control.

[0024] The main drainage ditch 3 is communicated with the initial rainwater and sewage pool and the municipal rainwater pipe 5 respectively, the control well is arranged at the communication place of the main drainage ditch 3, the initial rainwater and sewage pool and the municipal rainwater pipe 5 in the container yard area 2, the second gate valve 14 is installed for control, and the gate valve has the functions of manual control and remote automatic control.

[0025] The oily sewage generated by the plant maintenance area 8 and the domestic sewage generated by the office and living area 9 are discharged into the sewage treatment station 10 through the plant sewage pipe, and after the water quality treatment reaches the standard, the water is discharged into the municipal sewage pipe 11 through the plant sewage pipe.

[0026] The initial rainwater and sewage, fire accident water and leakage liquid in the hazardous chemical container yard area 2 are collected into the drainage ditch, the initial rainwater and sewage pool and the fire accident water pool 6 and the municipal rainwater and sewage pipe network by gravity flow. The initial rainwater and sewage pool and the fire accident water pool 6 are fully underground structures, which facilitate the gravity flow of the initial rainwater and sewage, the fire accident water and the leakage liquid into the corresponding collection pool.

[0027] According to the project working condition, the local meteorology and the related design calculation specification, the design capacity of the initial rainwater and sewage pool and the fire accident water pool 6 is determined, and the overall wastewater control capacity of the plant should consider the amount of various wastewaters generated under extreme accident conditions.

[0028] The container yard area 2, the drainage ditch, the initial rainwater and sewage pool and the fire accident water pool 6 all need to be treated to prevent the fire accident water from penetrating into the soil and polluting the groundwater.

[0029] Further optimization scheme, the maintenance area 8 is provided with a second branch drainage ditch 17 away from one side of the container yard area 2, and the second branch drainage ditch 17 is communicated with the main drainage ditch 3.

[0030] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] The above-described embodiments are only preferred modes of the present application and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A hazardous chemical goods container yard wastewater collection system characterized by: The application relates to a cofferdam wall (1) which is provided with a plurality of container yard areas (2) at equal intervals, a main drainage ditch (3) is arranged in the cofferdam wall (1), a first branch drainage ditch (4) is arranged outside the container yard area (2), a plurality of first branch drainage ditches (4) are respectively communicated with the main drainage ditch (3), the main drainage ditch (3) penetrates through the cofferdam wall (1) and is communicated with a municipal rainwater pipe (5), and a fire accident water pool (6) and an initial rainwater and sewage collecting pool (7) are respectively arranged on one side of the main drainage ditch (3).

2. A hazardous goods container yard wastewater collection system according to claim 1 characterised in that: A maintenance area (8) is arranged in the cofferdam wall (1), an office and living area (9) is arranged on one side of the cofferdam wall (1) close to the maintenance area (8), a sewage treatment station (10) is arranged on one side of the office and living area (9) away from the maintenance area (8), the office and living area (9) and the sewage treatment station (10) are located on one side of the main drainage ditch (3) away from the fire accident water pool, and the maintenance area (8) and the office and living area (9) are respectively communicated with the sewage treatment station (10).

3. A hazardous goods container yard wastewater collection system according to claim 2, characterised in that: The sewage treatment station (10) is communicated with a municipal sewage pipe (11), and the initial rainwater and sewage collecting pool (7) is communicated with the sewage treatment station (10) through a water pump (12).

4. A hazardous goods container yard wastewater collection system according to claim 3, characterised in that: A first gate valve (13) is arranged between the main drainage ditch (3) and the fire accident water pool (6), a second gate valve (14) is arranged between the main drainage ditch (3) and the initial rainwater and sewage collecting pool (7), a third gate valve (15) is arranged between the main drainage ditch (3) and the municipal sewage pipe (11), and a fourth gate valve (16) is arranged between the fire accident water pool (6) and the initial rainwater and sewage collecting pool (7).

5. The hazardous goods shipping container yard wastewater collection system of claim 2, wherein: A second branch drainage ditch (17) is arranged on one side of the maintenance area (8) away from the container yard area (2), and the second branch drainage ditch (17) is communicated with the main drainage ditch (3).

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