Discharge collection device for accident contaminated wastewater

Abstract

The application provides a discharge and collection device for accident sewage, which comprises a conversion well unit; for the purpose of energy saving and emission reduction, rainwater directly enters a rainwater pipe network without entering an accident pool pressure discharge, and a conversion well unit is newly added to adjust the discharge and collection mode of the accident sewage; a second ground operation valve well into the accident pool is closed in normal times, so that rainwater can flow into the rainwater pipe network to realize discharge; in an accident, a first ground operation valve well of the rainwater pipe network is closed, and the second ground operation valve well is opened, so that the accident water enters the accident pool; in order to avoid that the first ground operation valve well fails to be closed, resulting in toxic and harmful waste leakage, a third ground operation valve well is specially arranged to increase a safety factor; the third ground operation valve well is opened in normal times, and when the first ground operation valve well fails to be closed, the third ground operation valve well needs to be closed.

Description

Technical Field

[0001] The invention relates to the technical field of architectural design, in particular to a discharge and collection device for accident sewage and wastewater. Background Art

[0002] At present, chemical warehouses, hazardous waste warehouses, fuel source plants and other similar buildings with chemical hazardous materials or fuel storage in industrial plants often involve toxic and hazardous substances, and the production processes are highly dangerous, with great environmental risks. When abnormal working conditions or accidents occur, it is easy to cause sudden water pollution incidents, and the company's water environment risk prevention and control measures play an important role in the emergency response process. After a production accident occurs in the factory, a large amount of high-concentration and PH value fluctuating organic wastewater or toxic and harmful wastewater will be discharged in a short period of time. If these wastewaters are discharged directly into the sewage treatment system, they will bring a high shock load to the operating biological treatment system. The impact will take a long time to recover, and sometimes it will cause fatal damage. In order to avoid the impact of accident water on the sewage treatment system, many sewage treatment plants have set up accident water pools to store accident sewage and wastewater.

[0003] The existing accident pool collects toxic and harmful wastewater in the event of an accident, and collects rainwater during the rainy season when there is no accident. Since the accident pool should generally be kept empty to ensure that it plays its due role in special time periods, the rainwater in the pool needs to be pumped into the rainwater pipe network to empty it; the existing technology is not reasonable for the construction of accident pools. At present, the company's accident pool fails to remain empty and is not used as a dedicated pool, which makes the construction of the company's environmental risk prevention and control measures lag behind, leaving the company with a large water environment risk hidden danger. Once a major accident occurs, it may not be able to effectively intercept, collect and treat wastewater, leading to sudden water environment pollution incidents. Summary of the Invention

[0004] The purpose of the present invention is to provide a discharge and collection device for accident sewage and wastewater to solve the technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a discharge and collection device for accident sewage and wastewater, which includes: a drainage ditch, an accident water pool connected to the drainage ditch, a conversion well unit and a control system;

[0006] The accident water pool is used to store accident wastewater;

[0007] The conversion well unit is used to control the flow direction of accident sewage and / or non-accident sewage; the conversion well unit includes a first ground-operated valve well, a second ground-operated valve well, and a third ground-operated valve well provided between the drainage ditch and the accident water pool;

[0008] The control system is used to control the opening or closing of the first ground-operated valve well, the second ground-operated valve well, and the third ground-operated valve well to form independent flow channels, thereby completing the discharge, collection and treatment of accident wastewater and / or non-accident wastewater.

[0009] Furthermore, the drainage ditch is connected to the sewage pipe of the warehouse.

[0010] Furthermore, the accident wastewater is toxic and hazardous wastewater.

[0011] Furthermore, the non-accidental wastewater is rainwater.

[0012] Furthermore, it also includes a sewage pipe arranged between the drainage ditch and the accident water pool, and the second ground-operated valve well is arranged on the sewage pipe.

[0013] Furthermore, it also includes a rainwater pipe connected to the sewage pipe, and the first ground-operated valve well is arranged on the rainwater pipe.

[0014] Furthermore, it also includes a rainwater pipe network connected to the rainwater pipe, and the third ground-operated valve well is arranged on the rainwater pipe network.

[0015] Preferably, the first surface-operated valve well comprises a valve well body and a first valve;

[0016] The first valve is provided on the connecting pipe section between the drainage pipe and the rainwater pipe;

[0017] The valve well body is arranged underground; the rainwater pipe is arranged through the valve well body.

[0018] Furthermore, the valve well body may have many shapes, including but not limited to cylindrical, rectangular and other existing shapes.

[0019] Preferably, the second surface-operated valve well comprises a second valve;

[0020] The second valve is arranged between the two sewage pipes;

[0021] The sewage pipe is arranged through the valve well body.

[0022] Preferably, the third surface-operated valve well comprises a third valve;

[0023] The third valve is arranged between the two rainwater pipe networks;

[0024] The rainwater pipe network is arranged through the valve well body.

[0025] Furthermore, a top cover is provided on the top of the valve well body.

[0026] Furthermore, it also includes an overflow well arranged on the sewage pipe branch, which is used as a temporary collection bin for accidental sewage and wastewater when the second ground operation valve well fails to open or the sewage pipe is blocked.

[0027] Furthermore, it also includes a plurality of drainage pipes arranged on the overflow well to achieve the connection between the overflow well and the sewage pipe.

[0028] Furthermore, it also includes a rainwater collection pool for collecting and treating reverse-flow accident sewage and wastewater;

[0029] The rainwater collection pool is connected to the rainwater pipe network through a drainage pipe.

[0030] Furthermore, it also includes an outdoor pipeline valve well for pumping and discharging accident sewage and wastewater;

[0031] The outdoor pipeline valve well includes a sewage pipe and a sewage valve;

[0032] The sewage pipe is arranged through the valve well body;

[0033] The sewage valve is arranged between the two sewage pipes.

[0034] Furthermore, it also includes several drainage inspection wells set up on sewage pipes, rainwater pipes, rainwater pipe networks, drainage pipes and sewage pipes, which are used for connecting adjacent pipes and for cleaning and inspection;

[0035] The drainage inspection well is arranged at the direction changing point, confluence point, diameter changing point and slope changing point of the pipeline.

[0036] Furthermore, it also includes a tank truck, which is connected to the accident water pool and / or overflow well through a water pump and is used to pump and transport water to the sewage treatment system for water quality treatment.

[0037] Furthermore, it also includes a control system that can independently adjust the opening and closing of the first ground-operated valve well, the second ground-operated valve well, the third ground-operated valve well, the outdoor pipeline valve well, and the outdoor pipeline valve well.

[0038] By adopting the above technical solution, the present invention has the following beneficial effects:

[0039] The present invention provides a discharge and collection device for accident sewage and wastewater. In order to achieve the purpose of energy conservation and emission reduction, rainwater is allowed to directly enter the rainwater pipe network instead of entering the accident water pool for pressure discharge. The discharge and collection method of the accident sewage and wastewater is adjusted, and a set of conversion well units is added, specifically a first ground-operated valve well, a second ground-operated valve well, and a third ground-operated valve well are respectively arranged in the rainwater pipe, the sewage pipe and the rainwater pipe network. The control system controls the opening and closing of the above-mentioned valve wells to form a dedicated channel for accident sewage and wastewater and rainwater. Normally, the second ground-operated valve well entering the accident water pool is closed, so that rainwater can flow into the rainwater pipe network by gravity for discharge. In the event of an accident, the first ground-operated valve well of the rainwater pipe network is closed, and the second ground-operated valve well is opened to allow the accident water to enter the accident water pool. When an accident occurs, if the first ground-operated valve well fails to be closed, the third ground-operated valve well must be closed to prevent toxic and harmful wastewater from entering the rainwater pipe network and endangering the environment. The third ground valve is provided to increase the safety factor. It is normally in an open state and is only closed in the event of an accident and when the first ground-operated valve well cannot be closed.

[0040] The present invention provides a discharge and collection device for accidental wastewater, which also adds the following emergency measures:

[0041] 1. By setting up an overflow well, when an accident occurs, the second ground-operated valve well fails or the sewage pipe is blocked, the overflow well serves as an emergency collection bin for the accident sewage and wastewater to avoid water environment incidents.

[0042] 2. By setting up a rainwater collection pool, when an accident occurs, if the first ground-operated valve well cannot be closed, the third ground-operated valve well needs to be closed, and the accident sewage and wastewater will flow back to the rainwater collection pool and can be pumped to the accident water pool to prevent the accident sewage and wastewater from entering the rainwater pipe network and causing harm to the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2 It is a cross-sectional view of the present invention in the AA direction;

[0046] Figure 3 It is a top view of the valve well of the present invention.

[0047] Reference numerals:

[0048] 1-drainage ditch, 2-warehouse, 3-accident pool, 4-first ground operation valve well, 5-second ground operation valve well, 6-third ground operation valve well, 7-sewage pipe, 8-rainwater pipe, 9-rainwater pipe network, 10-valve well body, 10a-first valve, 10b-second valve, 10c-third valve, 11-overflow well, 12-drainage pipe, 13-rainwater collection pool, 14-outdoor valve well, 15-sewage valve, 16-sewage pipe, 17-drainage inspection well, 18-tank truck, 19-drainage pipe. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0052] The present invention will be further explained below with reference to specific embodiments.

[0053] like Figure 1 As shown, this embodiment provides a discharge and collection device for accident sewage and wastewater, which includes: a drainage ditch 1, an accident water pool 3 connected to the drainage ditch 1, a conversion well unit and a control system;

[0054] Accident water pool 3, used to store accident sewage and wastewater;

[0055] The conversion well unit is used to control the flow direction of accident sewage and / or non-accident sewage; the conversion well unit includes a first ground-operated valve well 4, a second ground-operated valve well 5, and a third ground-operated valve well 6 provided between the drainage ditch 1 and the accident water pool 3;

[0056] The control system is used to control the opening or closing of the first ground-operated valve well 4, the second ground-operated valve well 5, and the third ground-operated valve well 6 to form independent flow channels, thereby completing the discharge, collection and treatment of accidental wastewater and / or non-accidental wastewater.

[0057] In this embodiment, the drainage ditch 1 is connected to the sewage pipe of the warehouse 2. Accident wastewater is toxic and hazardous wastewater, and non-accident wastewater is rainwater.

[0058] This embodiment further includes a sewage pipe 7 arranged between the drainage ditch 1 and the accident pool 3 , and the second ground-operated valve well 5 is arranged on the sewage pipe 7 .

[0059] This embodiment further includes a rainwater pipe 8 connected to the sewage pipe 7 , and the first ground-operated valve well 4 is arranged on the rainwater pipe 8 .

[0060] This embodiment further includes a rainwater pipe network 9 connected to the rainwater pipe 8 , and the third ground-operated valve well 6 is arranged on the rainwater pipe network 9 .

[0061] In this embodiment, the first ground-operated valve well 4 includes a valve well body 10 and a first valve 10a; the first valve 10a is arranged on the connecting pipe section between the drainage pipe and the rainwater pipe 8; the valve well body 10 is arranged underground; the rainwater pipe 8 is arranged through the valve well body 10.

[0062] In this embodiment, the valve well body 10 may have many shapes, including but not limited to cylindrical, rectangular, and other existing shapes.

[0063] In this embodiment, the second surface-operated valve well 5 includes a second valve 10b.

[0064] The second valve 10 b is disposed between the two sewage pipes 7 ; the sewage pipes 7 are disposed through the valve well body 10 .

[0065] In this embodiment, the third surface-operated valve well 6 includes a third valve 10c;

[0066] The third valve 10c is arranged between the two rainwater pipe networks 9; the rainwater pipe network 9 is arranged through the valve well body 10, and a top cover (not shown in the figure) is also provided on the top of the valve well body 10.

[0067] This embodiment further comprises an overflow well 11 provided on the branch of the sewage pipe 7, which is used as a temporary collection bin for accidental sewage and wastewater when the second ground-operated valve well 5 fails to open or the sewage pipe 7 is blocked.

[0068] This embodiment further includes a plurality of drainage pipes 19 disposed on the overflow well 11 to connect the overflow well 11 with the sewage pipe 7 .

[0069] This embodiment further includes a rainwater collection pool 13 for collecting and treating reverse-flow accident wastewater; the rainwater collection pool 13 is connected to the rainwater pipe network 9 via a rainwater pipe 12 .

[0070] This embodiment also includes an outdoor pipeline valve well 14 for pumping and discharging accident sewage and wastewater;

[0071] The outdoor pipeline valve well 14 includes a sewage pipe 16 and a sewage valve 15 ; the sewage pipe 16 is arranged to penetrate the valve well body 14 ; the sewage valve 15 is sealed and arranged between the two sewage pipes 16 .

[0072] This embodiment also includes a number of drainage inspection wells 17 set on the sewage pipe 7, rainwater pipe 8, rainwater pipe network 9, drainage pipe 12 and sewage pipe 16, which are used for connecting adjacent pipes and cleaning and inspection; the drainage inspection wells 17 are set at the direction change, confluence, diameter change and slope change points of the pipes.

[0073] This embodiment further includes a tanker 18, which is connected to the accident water pool and / or overflow well via a water pump, and is used to pump and transport the water to the sewage treatment system for water treatment.

[0074] This embodiment also includes a control system that can independently adjust the opening and closing of the first ground-operated valve well 4, the second ground-operated valve well 5, the outdoor valve well 14 and the third ground-operated valve well 6.

[0075] The working conditions of this embodiment in actual application are as follows:

[0076] 1. Normally, the first ground-operated valve well 4 and the third ground-operated valve well 6 are open, and the second ground-operated valve well 5 is closed. Rainwater is collected through the drainage ditch 1 and enters the rainwater pipe network 9 to avoid entering the accident pool 3 and then being lifted and discharged.

[0077] 2. In case of an accident, the first ground-operated valve well 4 is closed and the second ground-operated valve well 5 is opened. The accident wastewater is collected through the drainage ditch 1 and enters the accident pool 3. After the water quality is analyzed, it is pumped to the tanker 18 and transported to the corresponding sewage treatment station for treatment.

[0078] 3. Normally, the first ground-operated valve well 4 fails to open or the rainwater pipe 12 is blocked. The rainwater is collected by the drainage ditch 1 and then flows into the accident pool 3 through the overflow well 11. The rainwater is then lifted and discharged into the nearby rainwater collection pool 13 and enters the rainwater pipe network 9.

[0079] 4. In the event of an accident, the second ground-operated valve well 5 fails to open or the pipe is blocked. The accident wastewater is collected through the drainage ditch 1, then flows through the overflow well 11. After water quality analysis, it is pumped to the tanker 18 and transported to the corresponding sewage treatment station for treatment.

[0080] 5. In the event of an accident, if the first ground-operated valve well 4 fails to close, the third ground-operated valve well 6 must be closed to prevent the accident sewage and wastewater from entering the rainwater pipe network 9 and causing harm to the surrounding environment. At the same time, when the accident sewage and wastewater flows back to the rainwater collection pool 13, a water pump can be used to pump this part of the collected wastewater into the accident pool 3, and then the tanker 18 will take it away for treatment.

[0081] In order to achieve the purpose of energy conservation and emission reduction, this embodiment allows rainwater to enter the rainwater pipe network directly instead of entering the accident pool for pressure discharge. Adjustments are made to the discharge and collection methods of accident sewage and wastewater, and a new set of conversion well units is added, specifically a first ground-operated valve well 4, a second ground-operated valve well 5, and a third ground-operated valve well 6, which are respectively arranged on the rainwater pipe 8, the sewage pipe 7 and the rainwater pipe network 9. The control system controls the opening and closing of the above-mentioned valve wells to form a dedicated channel for accident sewage and rainwater. Normally, the second ground-operated valve well 5 entering the accident pool 3 is closed, so that rainwater can flow into the rainwater pipe network 9 by gravity for discharge. In the event of an accident, the first ground-operated valve well 4 of the rainwater pipe network 9 is closed, and the second ground-operated valve well 5 is opened to allow the accident water to enter the accident pool 3. In order to avoid the first ground-operated valve well 4 from failing to close, resulting in leakage of toxic and harmful waste, the third ground-operated valve well 5 is specially provided to increase the safety factor. The third ground-operated valve well 5 is normally open. When the first ground-operated valve well fails to close, the third ground-operated valve well must be closed.

[0082] This embodiment also adds the following emergency measures:

[0083] 1. By setting up the overflow well 11, when an accident occurs, the second ground-operated valve well 5 fails or the sewage pipe 7 is blocked, the overflow well 11 serves as an emergency collection bin for the accident sewage and wastewater to avoid water environment incidents.

[0084] 2. By setting up a rainwater collection pool 13, when an accident occurs and the first ground-operated valve well 4 cannot be closed, the third ground-operated valve well 6 needs to be closed, and the accident sewage and wastewater will flow back to the rainwater collection pool 13 and can be pumped to the accident water pool 3 to prevent the accident sewage and wastewater from entering the rainwater pipe network 9 and causing harm to the surrounding environment.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A discharge and collection device for accident wastewater, characterized in that: It includes: Drains, emergency pools connected to the drains, transfer well units, outdoor pipeline valve wells and control systems; The accident water pool is used to store accident wastewater; The outdoor pipeline valve well is used for pumping and discharging accident sewage and wastewater; The conversion well unit is used to control the flow direction of accident sewage and / or non-accident sewage; the conversion well unit includes a first ground-operated valve well, a second ground-operated valve well, and a third ground-operated valve well provided between the drainage ditch and the accident water pool; The control system is used to independently adjust the opening and closing of the first ground-operated valve well, the second ground-operated valve well, the third ground-operated valve well, and the outdoor pipeline valve well to form independent flow channels, thereby completing the discharge, collection, and treatment of accident wastewater and / or non-accident wastewater; It also includes a sewage pipe arranged between the drainage ditch and the accident pool, and the second ground-operated valve well is arranged on the sewage pipe; It also includes an overflow well set on the sewage pipe branch, which is used as a temporary collection bin for accident sewage and wastewater when the second ground-operated valve well fails to open or the sewage pipe is blocked; It also includes a rainwater collection pool for collecting and treating reverse-flowing accidental sewage and wastewater; The rainwater collection pool is connected to the rainwater pipe network through a drainage pipe.

2. The discharge and collection device for accident sewage and wastewater according to claim 1, characterized in that: It also includes a rainwater pipe connected to the sewage pipe, and the first ground-operated valve well is arranged on the rainwater pipe.

3. The discharge and collection device for accident wastewater according to claim 2, characterized in that: It also includes a rainwater pipe network connected to the rainwater pipe, and the third ground-operated valve well is arranged on the rainwater pipe network.

4. The discharge and collection device for accident wastewater according to claim 3 is characterized in that: It also includes a plurality of drainage pipes arranged on the overflow well to connect the overflow well with the sewage pipe.

5. The discharge and collection device for accident sewage and wastewater according to claim 1 is characterized in that: The outdoor pipeline valve well includes a valve well body, a sewage pipe, and a sewage valve; The valve well body is arranged underground; The sewage pipe is arranged through the valve well body; The sewage valve is sealed and arranged between the two sewage pipes.

6. The discharge and collection device for accident wastewater according to any one of claims 1 to 3, characterized in that: It also includes several drainage inspection wells set up on sewage pipes, rainwater pipe networks, rainwater pipes and sewage pipes, which are used for connecting adjacent pipes and for cleaning and inspection; The drainage inspection well is arranged at the direction changing point, confluence point, diameter changing point and slope changing point of the pipeline.

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