Novel clean rainwater recycling pool

Abstract

The utility model relates to a novel clean rainwater recycling pool which comprises a sedimentation pool communicated with initial rainwater, a mud pump is arranged at the bottom of the sedimentation pool, and an outlet pipeline of the mud pump is communicated with the outside; the oil separation tank is separated from the sedimentation tank through a partition plate which is longitudinally arranged, a first electric valve and a submersible sewage pump are arranged at the bottom of the side wall of the oil separation tank, and an outlet pipeline of the submersible sewage pump is communicated with the outside; the clean water tank is a closed tank and communicated with the oil separation tank through a first electric valve, a submersible pump is arranged at the bottom of the clean water tank, and an outlet pipeline of the submersible pump is communicated with the outside. Sediment in initial rainwater can be settled, greasy dirt in the initial rainwater floats upwards to the surface layer, lower clear liquid in the rainwater can be discharged into the clear water pool, finally clean rainwater is stored, and the clean rainwater is prevented from being polluted by dust due to the closed design. The sedimentation tank, the oil separation tank and the clean water tank are of an integrated structure, the construction cost of the rainwater tank is saved, meanwhile, the structure is tighter, and the occupied space is small.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rainwater collection and utilization, in particular to a novel clean rainwater recovery tank. BACKGROUND

[0002] There is a contaminated production site in the chemical production process. The rainwater is easily contaminated by the contaminated medium when passing through the part of the production site, which leads to the fact that it cannot be directly discharged and needs to be introduced into the production system for utilization. The ammonia nitrogen value of rainwater in a combined soda plant is prone to exceed the standard. If the ammonia nitrogen value of rainwater in an open ditch exceeds the standard, the discharge will lead to environmental protection problems, and direct recovery will lead to product quality problems. At present, the initial rainwater recovery tank is relatively simple and mainly divided into two types. One is a simple large tank, which is directly reused after simple clarification. The other type of rainwater recovery tank is divided into two parts, with a partition in the middle, the bottom of the partition is connected, and is divided into a clarification tank and a clean tank. However, this method cannot achieve clean recovery of rainwater, and is prone to influence of oil stains, floating objects and the like. The rainwater cannot meet the requirement of clean recovery. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a novel clean rainwater recovery tank which divides the rainwater tank into a sedimentation tank, an oil separation tank and a clean water tank, and sequentially performs mud settling, oil stain separation and clean water storage, so that the clean recovery effect of rainwater can be improved.

[0004] According to the utility model, a novel clean rainwater recovery tank is provided, which comprises:

[0005] A sedimentation tank is connected with initial rainwater, a mud pump is arranged at the bottom of the sedimentation tank, and the outlet pipeline of the mud pump is communicated with the outside world.

[0006] An oil separation tank is separated from the sedimentation tank by a longitudinally arranged partition plate, the height of the partition plate is lower than the upper edge of the sedimentation tank and the oil separation tank, a first electric valve is arranged at the bottom of the side wall of the oil separation tank, a submerged sludge pump is arranged at the bottom of the oil separation tank, and the outlet pipeline of the submerged sludge pump is communicated with the outside world.

[0007] A clean water tank is a closed tank, is communicated with the oil separation tank through the first electric valve, a submerged pump is arranged at the bottom of the clean water tank, and the outlet pipeline of the submerged pump is communicated with the outside world.

[0008] The sedimentation tank, the oil separation tank and the clean water tank are integrated structures, and share the side wall and the bottom surface of the rainwater tank.

[0009] In one of the embodiments, an ammonia nitrogen online analyzer and a second electric valve are further included, the initial rainwater enters the sedimentation tank through the ammonia nitrogen online analyzer and the second electric valve, and the ammonia nitrogen online analyzer and the second electric valve are interlocked.

[0010] In one embodiment, the bottom surface of the sedimentation tank slopes downward from the outside to the inside at an angle of 10°.

[0011] In one embodiment, the bottom surface of the oil separator slopes downward from the outside to the inside at an angle of 10°.

[0012] Furthermore, the sedimentation tank is equipped with a stirring mechanism.

[0013] In one embodiment, a breathing tube for the clear water tank is also included. The clear water tank is provided with the breathing tube at the top of the clear water tank, and the clear water tank is connected to the outside through the clear water tank breathing tube.

[0014] In one embodiment, an oil separator level gauge is also included, which is disposed in the oil separator and is interlocked with the first electric valve.

[0015] In one embodiment, a clear water tank level gauge is also included, which is disposed in the clear water tank and is interlocked with the submersible pump.

[0016] In one embodiment, a grille is also included, which is disposed above the partition plate and at a height higher than the upper edge of the sedimentation tank and the oil separator.

[0017] In one embodiment, the outlet pipe of the mud pump is also connected to the oil separator.

[0018] Compared with the prior art, the advantages of this utility model are as follows:

[0019] 1. The rainwater pool is equipped with a sedimentation tank to settle the silt in the initial rainwater. At the same time, the sedimentation tank is equipped with a mud pump to periodically discharge the silt into the sludge pumping truck.

[0020] 2. The rainwater pool is equipped with a separate grease trap to float the oil in the initial rainwater to the surface, so that the clear liquid in the rainwater can be discharged into the clear water pool. At the same time, the grease trap is equipped with a submersible pump to periodically empty the grease trap completely to clean up the accumulated oil and the small amount of mud and sand that have not settled in the sedimentation tank.

[0021] 3. The rainwater tank is divided into a clear water tank to store clean rainwater. The sealed design prevents dust from contaminating the clean rainwater. At the same time, a submersible pump is installed inside the clear water tank to discharge the clean rainwater for recycling.

[0022] 4. The sedimentation tank, oil separator, and clear water tank are integrated into one structure, which saves the cost of building a rainwater tank. At the same time, the structure is more compact and occupies less space. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure: 1, sedimentation tank; 2, grease trap; 3, clean water tank; 4, slurry pump; 5, partition plate; 6, sewage pump; 7, submersible pump; 8, grease trap liquid level meter; 9, clean water tank liquid level meter; 10, first electric valve; 11, clean water tank breathing pipe; 12, ammonia nitrogen online analyzer; 13, second electric valve; 14, grille. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0026] In the present application, unless otherwise explicitly specified and limited, if there is a similar description that the first feature is "on" or "under" the second feature, it means that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0027] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0028] Reference Figure 1 , Figure 1 The structural schematic diagram in an embodiment of the present application is shown, and the new clean rainwater recovery tank provided by the embodiment of the present application comprises:

[0029] The sedimentation tank 1 is connected with initial rainwater, and the bottom of the sedimentation tank 1 is provided with a slurry pump 4, and the outlet pipeline of the slurry pump 4 is communicated with the outside;

[0030] The oil separation tank 2 is separated from the sedimentation tank 1 by a longitudinal partition plate 5, the height of the partition plate 5 is lower than the upper edge of the sedimentation tank 1 and the oil separation tank 2, the bottom of the side wall of the oil separation tank 2 is provided with a first electric valve 10, and the bottom of the oil separation tank 2 is provided with a sewage pump 6, and the outlet pipeline of the sewage pump 6 is communicated with the outside;

[0031] The clear water tank 3 is a closed tank, and is communicated with the oil separation tank 2 through the first electric valve 10, and the bottom of the clear water tank 3 is provided with a submersible pump 7, and the outlet pipeline of the submersible pump 7 is communicated with the outside;

[0032] The sedimentation tank 1, the oil separation tank 2 and the clear water tank 3 are integrated structures, and share the side wall and the bottom surface of the rainwater tank.

[0033] In this embodiment, an ammonia nitrogen on-line analyzer 12 and a second electric valve 13 are further included, and the initial rainwater enters the sedimentation tank 1 through the ammonia nitrogen on-line analyzer 12 and the second electric valve 13. The ammonia nitrogen on-line analyzer 12 and the second electric valve 13 are interlocked, when the ammonia nitrogen value of the initial rainwater is greater than 15 mg / L, the second electric valve 13 is opened, and when the ammonia nitrogen value of the initial rainwater is less than or equal to 15 mg / L, the second electric valve 13 is closed, at this time, the initial rainwater can be discharged.

[0034] In this embodiment, the bottom surfaces of the sedimentation tank 1 and the oil separation tank 2 are inclined downward from the outside to the inside, and the inclination angle is 10°. The inclined bottom surface enables the mud and sand to gather at the bottom, facilitates the treatment of the mud slurry, and also enables the sewage pump 6 to completely empty the oil separation tank 2.

[0035] Further, a stirring mechanism is arranged in the sedimentation tank 1. The mud and sand in the sedimentation tank 1 is not easy to gather by relying on natural sedimentation, and therefore the stirring mechanism is arranged to stir the sedimentation tank 1, so that the mud and sand in the sedimentation tank 1 is further gathered, and the cleanliness of the rainwater entering the oil separation tank 2 is improved.

[0036] In this embodiment, a clear water tank breathing pipe 11 is further included, and the top of the clear water tank 3 is provided with the clear water tank breathing pipe 11, and the clear water tank 3 is communicated with the outside through the clear water tank breathing pipe 11.

[0037] In this embodiment, a clear water tank liquid level meter 9 is further included, and the clear water tank liquid level meter 9 is arranged in the clear water tank 3, and the clear water tank liquid level meter 8 is interlocked with the submersible pump 7. When the liquid level of the clear water tank 3 is greater than or equal to 80%, the submersible pump 7 is automatically started to discharge the clean rainwater into the outside through the outlet pipeline of the submersible pump 7; and when the liquid level of the clear water tank 3 is less than or equal to 5%, the submersible pump 7 is automatically closed.

[0038] In this embodiment, a clear water tank liquid level meter 9 is further included, and the clear water tank liquid level meter 9 is arranged in the clear water tank 3, and the clear water tank liquid level meter 8 is interlocked with the submersible pump 7. When the liquid level of the clear water tank 3 is greater than or equal to 80%, the submersible pump 7 is automatically started to discharge the clean rainwater into the outside through the outlet pipeline of the submersible pump 7; and when the liquid level of the clear water tank 3 is less than or equal to 5%, the submersible pump 7 is automatically closed.

[0039] In this embodiment, a grid 14 is further included, which is arranged above the partition plate 5 and has a height higher than the upper edge of the sedimentation tank 1 and the grease trap 2. The grid 14 is used to filter floating objects and sundries in the rainwater overflowing from the sedimentation tank 1 into the grease trap.

[0040] In this embodiment, the outlet pipe of the sludge pump 4 is further communicated with the grease trap 2. When the sludge pump 4 is dredging, the sludge is first discharged into a dredging vehicle, and when the outlet is relatively clean, the water is discharged into the grease trap 2, thereby improving the recycling rate of rainwater.

[0041] When the rainwater tank is working:

[0042] (1) When the initial rainwater reaches the ammonia nitrogen online analyzer 12 through the open ditch and underground pipe network, and the ammonia nitrogen value of the initial rainwater is greater than 15 mg / L, it indicates that the ammonia nitrogen value of the rainwater in the open ditch is too high, and the open ditch needs to be flushed by entering the rainwater tank. At this time, the second electric valve 13 is opened to make the initial rainwater enter the sedimentation tank 1; when the ammonia nitrogen value of the initial rainwater is less than or equal to 15 mg / L, the second electric valve 13 is closed, and at this time, the initial rainwater can be discharged externally.

[0043] (2) The initial rainwater is settled in the sedimentation tank 1, and when the water level is higher than the partition plate 5, the rainwater flows into the grease trap 2 through the grid 14 to isolate sundries; the sludge pump 4 is dredged every year, and when dredging, the outlet pipe of the sludge pump 4 can directly enter the dredging vehicle, and when the outlet is relatively clean, the water enters the grease trap 2, and finally the rainwater is completely pumped out for cleaning.

[0044] (3) The oil stains in the initial rainwater float to the surface in the grease trap 2; when the liquid level in the grease trap 2 is greater than or equal to 80%, the first electric valve 10 is automatically opened to make the clear liquid in the grease trap 2 flow into the clean water tank; when the liquid level in the grease trap 2 is less than or equal to 30%, the first electric valve 10 is automatically closed.

[0045] (4) The initial rainwater is cleaned and enters the clean water tank 3, and when the liquid level in the clean water tank 3 is greater than or equal to 80%, the submersible pump 7 is automatically started; when the liquid level in the clean water tank 3 is less than or equal to 5%, the submersible pump 7 is automatically stopped.

[0046] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0047] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A novel clean rainwater harvesting tank characterized in that, It comprises: a sedimentation tank connected with initial rainwater, the bottom of which is provided with a sludge pump, the outlet pipe of which is connected with the outside; an oil separation tank separated from the sedimentation tank by a longitudinal partition plate, the height of which is lower than the upper edge of the sedimentation tank and the oil separation tank, the bottom of the sidewall of which is provided with a first electric valve, the bottom of which is provided with a submersible sewage pump, the outlet pipe of which is connected with the outside; a clear water tank which is a closed tank and is connected with the oil separation tank through the first electric valve, the bottom of which is provided with a submersible pump, the outlet pipe of which is connected with the outside; the sedimentation tank, the oil separation tank and the clear water tank are integrated structures and share the sidewall and the bottom of the rainwater tank.

2. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, It also comprises an ammonia nitrogen on-line analyzer and a second electric valve, the initial rainwater enters the sedimentation tank through the ammonia nitrogen on-line analyzer and the second electric valve, and the ammonia nitrogen on-line analyzer and the second electric valve are interlocked.

3. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, The bottom of the sedimentation tank is inclined downward from the outside to the inside, and the inclination angle is 10°.

4. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, The bottom of the oil separation tank is inclined downward from the outside to the inside, and the inclination angle is 10°.

5. A novel clean rainwater harvesting tank as claimed in claim 4, wherein, The sedimentation tank is provided with a stirring mechanism inside.

6. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, It also comprises a clear water tank breathing pipe, the top of the clear water tank is provided with the clear water tank breathing pipe, and the clear water tank is connected with the outside through the clear water tank breathing pipe.

7. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, It also comprises an oil separation tank liquid level meter, which is arranged in the oil separation tank, and the oil separation tank liquid level meter is interlocked with the first electric valve.

8. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, It also comprises a clear water tank liquid level meter, which is arranged in the clear water tank, and the clear water tank liquid level meter is interlocked with the submersible pump.

9. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, It also comprises a grid, which is arranged above the partition plate and has a height higher than the upper edge of the sedimentation tank and the oil separation tank.

10. A novel clean rainwater harvesting tank as claimed in claim 1, wherein, The outlet pipe of the sludge pump is also connected with the oil separation tank.

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