Rain sewage recovery system for raw material tank area
By designing surrounding and internal recycling devices and flow direction switching devices in the storage tank area of the chemical industrial park, unified collection and dilution of rainwater and sewage can be achieved when there is no need for diversion. This solves the problem of incomplete rainwater collection in existing technologies and reduces the pollution of sewage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies in chemical industrial parks, the rainwater and sewage separation systems in tank areas typically only collect sewage when there is a leak, failing to achieve unified collection of rainwater when separation is not required.
Design a rainwater and wastewater recovery system for a raw material tank area, including a first recovery device surrounding the tank area and a second recovery device inside the tank area, combined with a temporary storage device and a flow direction switching device, to collect and temporarily store external rainwater and internal liquids respectively, and to switch the flow direction for dilution in the event of a leak, thereby achieving unified collection of rainwater and wastewater.
It enables the unified collection of rainwater and sewage without the need for separate treatment, reduces the pollution of sewage, solves the problem of rainwater collection without the need for separation, and reduces the harmfulness of sewage through dilution.
Smart Images
Figure CN224092644U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical raw material storage technology, and in particular to a rainwater and sewage recovery system for raw material tank areas. Background Technology
[0002] Rainwater and wastewater separation is a drainage system that separates rainwater and sewage, discharging each through separate pipes intermittently or continuously. This allows for centralized management and treatment of industrial and domestic wastewater, thereby protecting the environment. Initially, rainwater and wastewater separation was primarily implemented in urban drainage systems to separate domestic sewage from rainwater. In recent years, with the rapid development of the chemical industry and the establishment of chemical industrial parks, both the total volume and variety of products have increased significantly, inevitably leading to the generation of large amounts of industrial wastewater. Therefore, the separation, recycling, and treatment of industrial wastewater have become particularly important.
[0003] For example, patent CN219261260U provides a rainwater and sewage separation system, including a tank area, a main chemical production unit, a diversion well, a sewage lifting tank, and an initial rainwater lifting tank. The tank area is equipped with a collection pit B, which is connected to the diversion well. The diversion well is equipped with gate valves A, B, and C. Gate valve A is connected to the sewage lifting tank, gate valve B is connected to the initial rainwater lifting tank, and gate valve C is connected to the rainwater well. A pump area is located above the tank area, and a floor drain is installed within the pump area, connected to the diversion well. A sewage ditch is located around the main chemical production unit, and a collection pit A is installed on the sewage ditch, connected to the diversion well. This solution achieves classified and targeted treatment of both sewage and rainwater.
[0004] The above solution has the following problems: In reality, under normal circumstances, the wastewater collected in the tank area is still sewage. Wastewater is only collected in the event of a leak. In other words, there are situations where diversion is not necessary. Utility Model Content
[0005] In view of this, it is necessary to provide a rainwater and wastewater recycling system for raw material tank areas that can collect rainwater in a unified manner without the need for diversion.
[0006] This utility model provides a rainwater and sewage recovery system for raw material tank farms, used to recover rainwater and sewage from the structure of raw material tank farms, including:
[0007] A first recycling device is arranged around the raw material tank area structure to collect rainwater from the outside of the raw material tank area structure;
[0008] The second recovery device is located within the raw material tank area structure and is used to collect the liquid inside the raw material tank area structure.
[0009] A temporary storage device, connected to the second recovery device, is used to temporarily store the liquid collected by the second recovery device;
[0010] A rainwater harvesting device, connected to the first recycling device, is used to receive rainwater collected by the first recycling device, and
[0011] A flow direction switching device is connected to the rainwater collection device and the temporary storage device, and is used to switch the flow direction between the rainwater collection device and the temporary storage device.
[0012] In some feasible solutions, the flow direction switching device includes a delivery pipe and a bidirectional pump. The two ends of the delivery pipe are respectively connected to the temporary storage device and the rainwater collection device. The bidirectional pump is installed on the delivery pipe and can switch the liquid flow direction between the temporary storage device and the rainwater collection device.
[0013] In some feasible solutions, the flow switching device includes a first conveying pipe, a second conveying pipe, a first conveying pump, and a second conveying pump. The two ends of the first conveying pipe and the two ends of the second conveying pipe are respectively connected to the temporary storage device and the rainwater collection device. The first conveying pump is installed on the first conveying pipe to guide the liquid from the temporary storage device to the rainwater collection device. The second conveying pump is installed on the second conveying pipe to guide the liquid from the rainwater collection device to the temporary storage device.
[0014] In some feasible solutions, a first one-way valve is provided in the first conveying pipe, and the first one-way valve is open from the temporary storage device to the rainwater collection device. A second one-way valve is provided in the second conveying pipe, and the second one-way valve is open from the rainwater collection device to the temporary storage device.
[0015] Some feasible solutions also include a raw material tank area structure, which includes a base, a fireproof wall, and a sprinkler system. The base is used to support the chemical tanks. The fireproof wall is set on the base and surrounds the chemical tanks. The sprinkler system has a spray end, which is embedded in the surface of the fireproof wall facing the chemical tanks.
[0016] In some feasible solutions, the fireproof enclosure includes a surrounding wall and partition walls. The surrounding wall is fixed on the base and surrounds the perimeter of all chemical tanks. Several partition walls are set in the surrounding area of the surrounding wall and fixed to the surrounding wall, forming isolation areas corresponding to the chemical tanks one by one.
[0017] In some feasible solutions, the side of the surrounding wall away from the chemical tank is provided with an inclined support, which has an inclined surface to guide rainwater to the first recovery device.
[0018] In some feasible solutions, the first recycling device includes an annular trough and a filter plate. The annular trough surrounds the raw material tank area structure and is embedded in the bottom surface. The filter plate covers the annular trough. The annular trough is connected to the rainwater collection device through a pipe.
[0019] In some feasible solutions, the second recycling device includes a recycling drain and a recycling pipe. The recycling drain is embedded in the base, and the recycling pipe is embedded in the base, with one end connected to the recycling drain and the other end connected to the temporary storage device.
[0020] In some feasible solutions, the rainwater harvesting device includes a rainwater collection tank, which is connected to the first recycling device and the flow direction switching device.
[0021] The beneficial effects of this utility model are as follows:
[0022] In this invention, the first recovery device collects rainwater from outside the raw material tank area structure and sends it to the rainwater collection device for storage. The second recovery device collects liquid from inside the raw material tank area structure and sends it to the temporary storage device for temporary storage. When there is no raw material leakage inside the raw material tank area structure, the liquid recovered by the second recovery device is rainwater. The flow direction switching device switches the flow direction between the rainwater collection device and the temporary storage device so that the rainwater flows from the temporary storage device to the rainwater collection device, thus guiding the rainwater stored in the temporary storage device to the rainwater collection device. The rainwater collection device collects rainwater; however, when a leak occurs in the raw material tank area structure, the liquid recovered in the second recovery device is wastewater. The flow direction switching device switches the flow direction between the rainwater collection device and the temporary storage device so that the rainwater flows from the rainwater collection device to the temporary storage device, diluting the wastewater in the temporary storage device and reducing its pollution. This invention can achieve the convergence and diversion of two recovery paths. When diversion is not required, the two recovery paths are converged, thereby solving the problem of unified rainwater collection when diversion is not necessary. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a top view schematic diagram of the rainwater and sewage recovery system in the raw material tank area of this utility model;
[0025] Figure 2 This is a cross-sectional schematic diagram of the rainwater and sewage recovery system in the raw material tank area of this utility model;
[0026] The components are: 1-Raw material tank area structure, 11-Base, 12-Fireproof enclosure, 121-Surrounding wall, 122-Separation wall, 123-Inclined support, 13-Sprinkler device, 131-Transport pipeline, 132-Sprinkler end, 2-First recovery device, 21-Annular trough, 22-Filter plate, 3-Second recovery device, 31-Recovery drain, 32-Recovery pipeline, 4-Temporary storage device, 41-Temporary storage tank, 5-Rainwater collection device, 51-Rainwater collection tank, 6-Flow direction switching device, 61-First transport pipeline, 62-Second transport pipeline, 63-First transport pump, 64-Second transport pump, 7-Liquid guide pipe. Detailed Implementation
[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.
[0028] like Figure 1-2 As shown, an embodiment of this utility model provides a rainwater and wastewater recovery system for a raw material tank area, comprising: a raw material tank area structure 1, a first recovery device 2, a second recovery device 3, a temporary storage device 4, a rainwater collection device 5, and a flow direction switching device 6. The first recovery device 2 is arranged around the raw material tank area structure 1 and is used to collect rainwater from outside the raw material tank area structure 1. The second recovery device 3 is located inside the raw material tank area structure 1 and is used to collect liquid inside the raw material tank area structure 1. The temporary storage device 4 is connected to the second recovery device 3 and is used to temporarily store the liquid collected by the second recovery device 3. The rainwater collection device 5 is connected to the first recovery device 2 by a pipeline and is used to receive the rainwater collected by the first recovery device 2. The two ends of the flow direction switching device 6 are respectively connected to the rainwater collection device 5 and the temporary storage device 4 and are used to switch the flow direction between the rainwater collection device 5 and the temporary storage device 4, so that the liquid stored in the temporary storage device 4 is guided to the rainwater collection device 5, or the rainwater in the rainwater collection device 5 is guided to the temporary storage device 4.
[0029] In this invention, the first recovery device 2 collects rainwater from outside the raw material tank area structure 1 and sends it to the rainwater collection device 5 for storage. The second recovery device 3 collects liquid from inside the raw material tank area structure 1 and sends it to the temporary storage device 4 for temporary storage. When there is no raw material leakage in the raw material tank area structure 1, the liquid recovered by the second recovery device 3 is rainwater. The flow direction switching device 6 switches the flow direction between the rainwater collection device 5 and the temporary storage device 4 so that the rainwater flows from the temporary storage device 4 to the rainwater collection device 5, thus guiding the rainwater stored in the temporary storage device 4 into the rainwater collection device 5 and achieving rainwater collection. However, when there is a leak in the raw material tank area structure 1, the liquid recovered by the second recovery device 3 is sewage. The flow direction switching device 6 switches the flow direction between the rainwater collection device 5 and the temporary storage device 4 so that the rainwater flows from the rainwater collection device 5 to the temporary storage device 4, diluting the sewage in the temporary storage device 4 and reducing its pollution.
[0030] Specifically, the raw material tank area structure 1 includes a base 11, a fireproof wall 12, and a spray device 13. The base 11 is used to support the chemical tank. The fireproof wall 12 is set on the base 11 and surrounds the chemical tank. The spray device 13 has a spray end, which is embedded in the surface of the fireproof wall 12 facing the chemical tank.
[0031] In this utility model, the fireproof wall 12 is set around the chemical tank. In the event of a fire, it can effectively block the spread of the fire. The spray end of the spray device 13 is embedded in the surface of the fireproof wall 12 facing the chemical tank. It can spray liquid onto the chemical tank, thereby extinguishing the flames inside the fireproof wall 12 and achieving the purpose of eliminating the fire.
[0032] Furthermore, the base 11 is fixed to a reliable ground surface. The functions of the base 11 are: 1. to support the chemical tank; 2. to isolate the chemical tank from the soil. The raw materials stored in the chemical tank are generally highly polluting, and once a leak occurs, the chemical raw materials will pollute the land. The base 11 can isolate the chemical tank from the soil, preventing leaked raw materials from seeping into the soil and causing environmental pollution.
[0033] Furthermore, the base 11 includes a cement layer, a seepage-proof layer, and a fireproof layer. The seepage-proof layer is laid on the cement layer, and the fireproof layer is laid on the seepage-proof layer. The seepage-proof layer can prevent leaked chemical raw materials from seeping into the soil, and the fireproof layer can block flames, protecting the seepage-proof layer and preventing flames from igniting and damaging it, thus preventing the seepage of chemical raw materials.
[0034] Furthermore, the fireproof enclosure 12 includes a surrounding wall 121 and partition walls 122. The surrounding wall 121 is fixed to the base 11 and surrounds all chemical tanks. Several partition walls 122 are disposed within the surrounding area of the surrounding wall 121 and fixed to it, forming isolation zones corresponding to each chemical tank. The purpose of this design is to separate the chemical tanks, preventing the spread of flames between multiple tanks during a fire, effectively blocking the spread of flames between tanks, and minimizing losses.
[0035] Furthermore, the spray end 132 of the spray device 13 is embedded on the wall surface of the surrounding wall 121 and the partition wall 122 facing the chemical tank, which can spray the chemical tank in all directions and achieve rapid extinguishing of the flame.
[0036] Furthermore, to facilitate rainwater from the surrounding wall 121 falling into the first recycling device 2, an inclined support 123 is provided on the side of the surrounding wall 121 away from the chemical tank. The inclined support 123 has an inclined surface that guides the rainwater to flow into the first recycling device 2. In addition, the inclined support 123 also provides stable support for the surrounding wall 121.
[0037] Furthermore, the spraying device 13 includes a liquid supply tank (not shown), a conveying pipe 131, and a plurality of spraying ends 132. The liquid supply tank is connected to the conveying pipe 131, which is embedded in the surrounding wall 121 and the partition wall 122. The spraying ends 132 are connected to the conveying pipe 131. The liquid in the liquid supply tank is delivered to the spraying ends 132 through the conveying pipe 131 and sprayed onto the chemical tank.
[0038] It should be noted that the function of the spray device 13 is not limited to fire extinguishing. The raw materials in the chemical tank are generally corrosive and polluting. When a leak occurs, the raw materials in the chemical tank flow to the isolation area. The spray device 13 can be activated to spray, and the sprayed liquid can dilute the raw materials, thereby reducing their corrosiveness and polluting properties, facilitating subsequent recycling and treatment.
[0039] Specifically, the first recycling device 2 includes an annular trough 21 and a filter plate 22. The annular trough 21 surrounds the raw material tank area structure 1 and is embedded in its bottom surface. The filter plate 22 covers the annular trough 21. The annular trough 21 is connected to the rainwater collection device 5 via a pipe. Rainwater falls onto the filter plate 22 and enters the annular trough 21, eventually flowing into the rainwater collection device 5.
[0040] Specifically, the second recycling device 3 includes a recycling drain 31 and a recycling pipe 32. The recycling drain 31 is embedded in the base 11, and the recycling pipe 32 is embedded in the base 11, with one end connected to the recycling drain 31 and the other end connected to the temporary storage device 4. The liquid inside the raw material tank area structure 1 is recycled to the temporary storage device 4 through the recycling drain 31 and the recycling pipe 32.
[0041] Specifically, the temporary storage device 4 includes a temporary storage tank 41, which is connected to the recycling pipeline 32 and the flow direction switching device 6.
[0042] Specifically, the rainwater collection device 5 includes a rainwater collection tank 51, which is connected to the annular trough 21 and the flow direction switching device 6.
[0043] Furthermore, the rainwater collection tank 51 is also connected to the liquid supply tank, sending at least a portion of the rainwater to the liquid supply tank as a treatment liquid for fire extinguishing and diluting leaked materials. This enables the reuse of rainwater and saves some water resources.
[0044] In some embodiments, the flow direction switching device 6 includes a delivery pipe and a bidirectional pump. The two ends of the delivery pipe are connected to the temporary storage device 4 and the rainwater collection device 5, respectively. The bidirectional pump is mounted on the delivery pipe and enables switching the liquid flow direction between the temporary storage device 4 and the rainwater collection device 5. In use, when there is no raw material leakage in the raw material tank area structure 1, the liquid recovered in the second recovery device 3 is rainwater. The bidirectional pump directs the liquid in the temporary storage device 4 to the rainwater collection device 5, thus collecting the rainwater. Conversely, when there is a leakage in the raw material tank area structure 1, the liquid recovered in the second recovery device 3 is wastewater. The bidirectional pump directs the liquid in the rainwater collection device 5 to the temporary storage device 4, diluting the wastewater in the temporary storage device 4 and reducing its contamination.
[0045] In this embodiment, the flow switching device 6 includes a first conveying pipe 61, a second conveying pipe 62, a first conveying pump 63, and a second conveying pump 64. The two ends of the first conveying pipe 61 and the two ends of the second conveying pipe 62 are respectively connected to the temporary storage device 4 and the rainwater collection device 5. The first conveying pump 63 is disposed on the first conveying pipe 61 and is used to guide the liquid to flow from the temporary storage device 4 to the rainwater collection device 5. The second conveying pump 64 is disposed on the second conveying pipe 62 and is used to guide the liquid to flow from the rainwater collection device 5 to the temporary storage device 4. In use, when there is no raw material leakage in the raw material tank area structure 1, the liquid recovered in the second recovery device 3 is rainwater. The first transfer pump 63 operates to direct the liquid in the temporary storage device 4 to the rainwater collection device 5, thus collecting the rainwater. However, when there is a leakage in the raw material tank area structure 1, the liquid recovered in the second recovery device 3 is sewage. The second transfer pump 64 operates to direct the liquid in the rainwater collection device 5 to the temporary storage device 4, diluting the sewage in the temporary storage device 4 and reducing its pollution.
[0046] Furthermore, the first conveying pipe 61 is equipped with a first one-way valve, which is open from the temporary storage device 4 to the rainwater collection device 5; correspondingly, the second conveying pipe 61 is equipped with a second one-way valve, which is open from the rainwater collection device 5 to the temporary storage device 4. The function of the first one-way valve and the second one-way valve is to prevent backflow of liquid in the first conveying pipe 61 and the second conveying pipe 62.
[0047] Furthermore, it also includes a liquid guiding pipe 7, which passes through the base 11. One end of the liquid guiding pipe 7 is in contact with the ground, and the other end is connected to the chemical tank. The liquid guiding pipe 7 is made of conductive material. The purpose of this design is that the liquid guiding pipe 7 can guide the liquid flow on the one hand, and ground the chemical tank on the other hand, reducing the risk of fire.
[0048] The beneficial effects of this utility model are:
[0049] In this invention, the first recovery device collects rainwater from outside the raw material tank area structure and sends it to the rainwater collection device for storage. The second recovery device collects liquid from inside the raw material tank area structure and sends it to the temporary storage device for temporary storage. When there is no raw material leakage inside the raw material tank area structure, the liquid recovered by the second recovery device is rainwater. The flow direction switching device switches the flow direction between the rainwater collection device and the temporary storage device so that the rainwater flows from the temporary storage device to the rainwater collection device, thus guiding the rainwater stored in the temporary storage device to the rainwater collection device. The rainwater collection device collects rainwater; however, when a leak occurs in the raw material tank area structure, the liquid recovered in the second recovery device is wastewater. The flow direction switching device switches the flow direction between the rainwater collection device and the temporary storage device so that the rainwater flows from the rainwater collection device to the temporary storage device, diluting the wastewater in the temporary storage device and reducing its pollution. This invention can achieve the convergence and diversion of two recovery paths. When diversion is not required, the two recovery paths are converged, thereby solving the problem of unified rainwater collection when diversion is not necessary.
[0050] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model.
Claims
1. A rainwater and wastewater recovery system for raw material tank farms, used to recover rainwater and wastewater from the structure of raw material tank farms, characterized in that, include: A first recycling device is arranged around the raw material tank area structure to collect rainwater outside the raw material tank area; The second recovery device is located within the raw material tank area structure and is used to collect the liquid inside the raw material tank area structure. A temporary storage device, connected to the second recovery device, is used to temporarily store the liquid collected by the second recovery device; A rainwater harvesting device, connected to the first recycling device, is used to receive rainwater collected by the first recycling device; as well as A flow direction switching device is connected to the rainwater collection device and the temporary storage device, and is used to switch the flow direction between the rainwater collection device and the temporary storage device.
2. The rainwater and wastewater recovery system for raw material tank areas as described in claim 1, characterized in that, The flow direction switching device includes a delivery pipe and a bidirectional pump. The two ends of the delivery pipe are respectively connected to the temporary storage device and the rainwater collection device. The bidirectional pump is installed on the delivery pipe and can switch the liquid flow direction between the temporary storage device and the rainwater collection device.
3. The rainwater and wastewater recovery system for raw material tank areas as described in claim 1, characterized in that, The flow direction switching device includes a first conveying pipe, a second conveying pipe, a first conveying pump, and a second conveying pump. The two ends of the first conveying pipe and the two ends of the second conveying pipe are respectively connected to the temporary storage device and the rainwater collection device. The first conveying pump is installed on the first conveying pipe and is used to guide the liquid to flow from the temporary storage device to the rainwater collection device. The second conveying pump is installed on the second conveying pipe and is used to guide the liquid to flow from the rainwater collection device to the temporary storage device.
4. The rainwater and wastewater recovery system for raw material tank areas as described in claim 3, characterized in that, The first conveying pipe is equipped with a first one-way valve, which is open from the temporary storage device to the rainwater collection device. The second conveying pipe is equipped with a second one-way valve, which is open from the rainwater collection device to the temporary storage device.
5. The rainwater and wastewater recovery system for raw material tank areas as described in claim 1, characterized in that, It also includes a raw material tank area structure, which includes a base, a fireproof wall, and a sprinkler system. The base is used to support the chemical tanks. The fireproof wall is set on the base and surrounds the chemical tanks. The sprinkler system has a spray end, which is embedded in the surface of the fireproof wall facing the chemical tanks.
6. The rainwater and wastewater recovery system for raw material tank areas as described in claim 5, characterized in that, The fireproof enclosure includes a surrounding wall and partition walls. The surrounding wall is fixed on the base and surrounds all chemical tanks. Several partition walls are set in the surrounding area of the surrounding wall and fixed to the surrounding wall, forming isolation areas corresponding to the chemical tanks.
7. The rainwater and wastewater recovery system for raw material tank areas as described in claim 6, characterized in that, The side of the surrounding wall away from the chemical tank is provided with an inclined support, which has an inclined surface to guide rainwater to the first recycling device.
8. The rainwater and wastewater recovery system for raw material tank areas as described in claim 1, characterized in that, The first recycling device includes an annular trough and a filter plate. The annular trough surrounds the raw material tank area structure and is embedded in the bottom surface. The filter plate covers the annular trough. The annular trough is connected to the rainwater collection device through a pipe.
9. The rainwater and wastewater recovery system for raw material tank areas as described in claim 5, characterized in that, The second recycling device includes a recycling drain and a recycling pipe. The recycling drain is embedded in the base, and the recycling pipe is embedded in the base, with one end connected to the recycling drain and the other end connected to the temporary storage device.
10. The rainwater and wastewater recovery system for raw material tank areas as described in claim 1, characterized in that, The rainwater collection device includes a rainwater collection tank, which is connected to the first recycling device and the flow direction switching device.