CN220167083U - Initial rainwater collecting, detecting and processing device for factory - Google Patents
Initial rainwater collecting, detecting and processing device for factory Download PDFInfo
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- CN220167083U CN220167083U CN202320918920.6U CN202320918920U CN220167083U CN 220167083 U CN220167083 U CN 220167083U CN 202320918920 U CN202320918920 U CN 202320918920U CN 220167083 U CN220167083 U CN 220167083U
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- initial rainwater
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- 238000012545 processing Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 239000010865 sewage Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 17
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000001301 oxygen Substances 0.000 claims abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 3
- 238000005070 sampling Methods 0.000 claims description 14
- 238000004062 sedimentation Methods 0.000 claims description 4
- 239000002920 hazardous waste Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model discloses a factory initial rainwater collecting, detecting and processing device which comprises a safety diversion well, a collecting tank, a detecting assembly, a drainage assembly and a PLC control terminal, wherein the safety diversion well is connected with the collecting tank; the safety diversion well is provided with a water inlet, a water outlet and an overflow port, and the overflow port is higher than the water outlet; the collecting tank is communicated with the water outlet through a first pipeline, and an electric flashboard valve is arranged on the first pipeline; the detection component comprises a liquid level meter, a COD (chemical oxygen demand) meter, an ammonia nitrogen meter and a PH meter which are arranged on the collecting tank; the drainage assembly comprises a first drainage branch pipe communicated with the collecting tank and the sewage treatment device, a second drainage branch pipe communicated with the collecting Chi Heyu well, a first electric valve is arranged on the first drainage branch pipe, and a second electric valve is arranged on the second drainage branch pipe; the PLC control terminal is respectively and electrically connected with the electric flashboard valve, the liquid level meter, the COD instrument, the ammonia nitrogen instrument, the PH meter, the first electric valve and the second electric valve. The treatment device can miniaturize the collecting tank, reduce the construction cost, facilitate the later maintenance and reduce the sewage treatment cost.
Description
Technical Field
The utility model relates to a rainwater collecting and treating system, in particular to a system for collecting and treating initial rainwater in a synthetic resin factory.
Background
For synthetic resin industry enterprises, at the early stage of rainfall, when partial pollutants exist on outdoor equipment, the outdoor equipment is flushed by rainwater, so that the initial rainwater contains pollutants, and the pollutants are directly discharged to a municipal rainwater pipe network to pollute the water environment to a certain extent. Therefore, the existing synthetic resin industry enterprises need to collect initial rainwater, treat the unqualified initial rainwater and then discharge the unqualified initial rainwater to a municipal rainwater pipe network.
When the existing synthetic resin industry enterprises process initial rainwater, the following problems exist: (1) The related laws and regulations in the early stage of factory construction are imperfect, the initial rainwater collection is not considered, a special collecting tank is not provided, and the emergency tank can be used as a rainwater collecting tank. The design of the volume of the emergency pool does not consider the initial rainwater collection amount under extreme conditions, and the emergency pool is used as the rainwater collection pool, so that the hidden danger of safety and environmental protection exists. (2) The initial rainwater in the whole factory area is collected, so that enterprises need to be provided with a collection pool with larger capacity. (3) The initial rainwater and the later clean rainwater are not effectively split, so that the excessive collection of the initial rainwater and the inflow of the initial rainwater into a downstream sewage treatment plant can occur, and the downstream treatment pressure is high; or the initial rainwater is too little to collect, and the polluted initial rainwater is mixed into the later clean rainwater to enter the municipal rainwater pipe network, so that the environment is polluted.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the utility model provides a factory initial rainwater collecting, detecting and processing device which can miniaturize a collecting tank, has a simpler structure, reduces construction cost, is convenient for later maintenance, reduces sewage treatment cost, realizes automatic operation and reduces labor cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the device comprises a safety diversion well, a collecting pool, a detection assembly, a drainage assembly and a PLC control terminal; the safety diversion well is provided with a water inlet, a water outlet and an overflow port, wherein the water inlet is used for rainwater in a pollution area to enter the safety diversion well, the water inlet is higher than the overflow port, and the overflow port is higher than the water outlet; the collecting tank is communicated with the water outlet through a first pipeline, and an electric flashboard valve is arranged on the first pipeline; the detection assembly comprises a liquid level meter, a COD (chemical oxygen demand) meter, an ammonia nitrogen meter and a PH meter which are arranged on the collecting tank; the drainage assembly comprises a first drainage branch pipe communicated with the collecting tank and the sewage treatment device, a second drainage branch pipe communicated with the collecting Chi Heyu well, a first electric valve is arranged on the first drainage branch pipe, and a second electric valve is arranged on the second drainage branch pipe; and the PLC control terminal is respectively and electrically connected with the electric flashboard valve, the liquid level meter, the COD meter, the ammonia nitrogen meter, the PH meter, the first electric valve and the second electric valve.
The cofferdam is built in the site, and drainage measures are arranged to communicate the safety diversion well with the pollution area, so that the collecting pool only collects initial rainwater in the pollution area in the factory, and the initial rainwater in the clean area in the factory is prevented from entering the collecting pool. Compared with the initial rainwater of the whole factory, the volume requirement on the collecting tank is greatly reduced, so that the collecting tank is miniaturized, and the construction cost is reduced. And as the initial rainwater in the clean area is prevented from entering the collecting tank, the initial rainwater is further prevented from entering the sewage treatment device, and thus the sewage treatment cost is reduced. The initial rainwater in the polluted area and the clean area is distinguished by utilizing the drainage measure, so that the mixed dilution of the polluted rainwater and the clean rainwater can be avoided, and the mixed rainwater is directly discharged into a municipal rainwater pipe network to cause environmental pollution when the high-standard precision measurement cannot be achieved.
The safe diversion well and the electric flashboard valve are arranged on the water inlet side of the collecting tank, the liquid level meter is arranged on the collecting tank, the electric flashboard valve and the liquid level meter are connected with the PLC control terminal, initial rainwater is automatically collected into the collecting tank, and later clean rainwater is directly discharged into a municipal rainwater pipe network. Compared with manual control, the full-automatic electric valve switching control saves labor cost and is more convenient to maintain.
The detection assembly and the drainage assembly are connected with the PLC control terminal, when the detection result is qualified, the initial rainwater can be directly discharged to the rainwater well, and when the detection result is unqualified, the initial rainwater can be discharged to the sewage treatment device for further treatment. The collection, detection and disposal are integrated and automatic, the workload is reduced, and the reliability and the high efficiency of the initial rainwater pollution control are improved.
Further, the drainage assembly comprises a drainage main pipe, two submersible pumps are arranged at one end of the drainage main pipe in parallel, and the first drainage branch pipe and the second drainage branch pipe are arranged at the other end of the drainage main pipe in parallel, so that the initial rainwater is not treated.
Further, the capacity of the collecting tank is set according to the size of a polluted area and the rainfall depth. The pollution area includes at least one of a plant tank area, a pump area, a hazardous waste storage area, an incinerator area, and an outdoor unit. Other areas of the factory floor are defined as clean areas.
According to the definition of initial rainwater in the latest environmental protection design Standard for chemical construction project (GB/T50483-2019) implemented in the urban and rural construction department 2020, the rainfall generated in the early rainfall stage of the polluted area of the factory is preferably 15-30 min of the initial rainfall stage or 20-30 mm of the initial rainfall stage.
With reference to the petrochemical engineering sewage treatment design specification and the petrochemical engineering enterprise water supply and drainage system design specification, the volume of the polluted rainwater storage facility is preferably calculated according to the product of the area of a polluted area and the rainfall depth. The specification analyzes the intensity of storm water in tens of cities across the country, and the contaminated areas are basically washed clean after 5min of initial rainwater washing. The rainfall depth is about 15mm to 30mm for 5 minutes, 20mm is taken for calculation, and the collection pool capacity V=Fh/1000. The area of the polluted area in the factory is 1500m 2 V=1500×20/1000=30m 3 。
Further, the device also comprises a sampling pump, one end of the sampling pump is communicated with the collecting Chi Naxiang through a pipeline, and the other end of the sampling pump is communicated with the COD instrument and the ammonia nitrogen instrument through pipelines.
Further, a cofferdam is arranged in the field, and the pollution area is communicated with the water inlet of the safety diversion well by utilizing a pre-buried pipeline and the like.
Further, a sewage interception hanging basket sedimentation device is arranged in the safe diversion well, and the sewage interception hanging basket sedimentation device is arranged below the water inlet.
Further, the overflow port is connected with the rainwater well through a drain pipe, and clean rainwater and initial rainwater qualified in detection are discharged to a municipal rainwater pipe network through the rainwater.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. according to the utility model, drainage measures are set in a cofferdam mode, a groove mode and the like, and the safety diversion well is communicated with the pollution area, so that the collecting pool only collects initial rainwater in the pollution area in the factory, and the initial rainwater in the clean area in the factory is prevented from entering the collecting pool. Compared with the initial rainwater of the whole factory, the volume requirement on the collecting tank is greatly reduced, so that the collecting tank is miniaturized, and the construction cost is reduced. And as the initial rainwater in the clean area is prevented from entering the collecting tank, the initial rainwater is further prevented from entering the sewage treatment device, and thus the sewage treatment cost is reduced. The initial rainwater in the polluted area and the clean area is distinguished by utilizing the drainage measure, so that the mixed dilution of the polluted rainwater and the clean rainwater can be avoided, and the mixed rainwater is directly discharged into a municipal rainwater pipe network to cause environmental pollution when the high-standard precision measurement cannot be achieved.
2. The safe diversion well and the electric flashboard valve are arranged on the water inlet side of the collecting tank, the liquid level meter is arranged on the collecting tank, the electric flashboard valve and the liquid level meter are connected with the PLC control terminal, initial rainwater is automatically collected into the collecting tank, and later clean rainwater is directly discharged into a municipal rainwater pipe network. Compared with manual control, the full-automatic electric valve switching control saves labor cost and is more convenient to maintain.
3. The detection assembly and the drainage assembly are connected with the PLC control terminal, when the detection result is qualified, the initial rainwater can be directly discharged to the rainwater well, and when the detection result is unqualified, the initial rainwater can be discharged to the sewage treatment device for further treatment. The collection, detection and disposal are integrated and automatic, the workload is reduced, and the reliability and the high efficiency of the initial rainwater pollution control are improved.
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a plant area initial rainwater collection, detection and treatment device in an embodiment of the utility model;
FIG. 2 is a flow chart of initial rainwater collection, detection and disposal in an embodiment of the present utility model.
Reference numerals of the above drawings: 1. a safety diversion well; 11. a water outlet; 12. an overflow port; 13. a water inlet; 2. a collecting tank; 3. a PLC control terminal; 41. a liquid level gauge; 42. a COD meter; 43. an ammonia nitrogen instrument; 44. a PH meter; 45. a sampling pipe; 46. a sampling pump; 51. a drainage main pipe; 52. submersible pump; 53. a first drain pipe; 54. a second drainage branch pipe; 55. a first electrically operated valve; 56. a second electrically operated valve; 57. a sewage treatment device; 58. a catch basin; 6. an electric gate valve; 7. and (5) a water drain pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one: referring to fig. 1-2, the device for collecting, detecting and processing initial rainwater in a factory comprises a safety diversion well 1, a collection tank 2, a detection assembly, a drainage assembly and a PLC control terminal 3.
The safety diversion well 1 is provided with a water inlet 13, a water outlet 11 and an overflow port 12, wherein the water inlet 13 is used for rainwater in a pollution area to enter the safety diversion well 1, the water inlet 13 is higher than the overflow port 12, and the overflow port 12 is higher than the water outlet 11. The overflow port 12 is connected with the catch basin 58 through a drain pipe 7 and is used for discharging clean rainwater into the catch basin 58 and then discharging the clean rainwater into a municipal rainwater pipe network through the catch basin 58. The safe diversion well 1 is internally provided with a sewage interception hanging basket sedimentation device which is arranged below the water inlet 13. A cofferdam is arranged on the site of the factory, the pollution area is communicated with the water inlet 13, and rainwater in the pollution area enters the safety diversion well 1. The pollution area comprises a factory storage tank area, a pump area, a hazardous waste storage area, an incinerator area and outdoor equipment. The periphery of the area can be divided into a polluted area within a preset distance range, so that the polluted rainwater is ensured to be collected.
The collecting tank 2 is slightly larger than 30m3 and is used for collecting initial rainwater in a synthetic resin production plant area aiming at a pollution area of about 1500m 2. The collecting tank 2 is communicated with the water outlet 11 through a first pipeline, and an electric gate valve 6 is arranged on the first pipeline. Because the water outlet 11 is lower than the overflow port 12, when the electric gate valve 6 is in an open state, the initial rainwater can flow into the collecting tank 2 through the water outlet 11, so that the diameter of the initial rainwater which is prevented from being polluted is prevented from being discharged to a municipal rainwater pipe network. And because measures such as cofferdam are arranged on the outer side of the safety diversion well 1, the phenomenon that rainwater in the safety diversion well 1 suddenly increases and simultaneously passes through the water outlet 11 and the overflow port 12 can be avoided.
The detection assembly comprises a liquid level meter 41, a COD meter 42, an ammonia nitrogen meter 43 and a PH meter 44 which are arranged on the collecting tank 2. The water level in the collecting tank 2 is detected by the level gauge 41, so that the collection of the initial rainwater can be stopped when the water level in the collecting tank 2 reaches a predetermined level. The water quantity at the preset height is calculated according to the size of the polluted area to obtain the capacity of the collecting tank 2. Be provided with sampling pipeline 45 in collecting vat 2, sampling pipeline 45's one end extends to collecting vat 2 below the middle part, sampling pipeline 45's the other end links to each other with sampling pump 46, sampling pump 46's export pass through the pipeline with COD appearance 42, ammonia nitrogen appearance 43 are linked together to carry the initial stage rainwater in the collecting vat 2 to COD appearance 42 and ammonia nitrogen appearance 43 and monitor.
The drainage assembly comprises a main drainage pipe 51 communicated with the inner side and the outer side of the collecting tank 2, two submersible pumps 52 are arranged at one end of the main drainage pipe 51 in parallel, and a first drainage branch pipe 53 and a second drainage branch pipe 54 are arranged at the other end of the main drainage pipe 51 in parallel. The first drain branch pipe 53 communicates with the collection tank 2 and the sewage treatment apparatus 57, and a first electric valve 55 is provided on the first drain branch pipe 53. The second drain branch pipe 54 is used for communicating the collecting tank 2 and a rainwater well 58, and a second electric valve 56 is arranged on the second drain branch pipe 54.
The PLC control terminal 3 is electrically connected with the electric flashboard valve 6, the liquid level meter 41, the COD meter 42, the ammonia nitrogen meter 43, the PH meter 44, the first electric valve 55 and the second electric valve 56 respectively.
The working process of the initial rainwater collecting and treating device is as follows:
under normal conditions of the scheme, the electric gate valve 6 is in an open state, and the first electric valve 55 and the second electric valve 56 are in a closed state.
The first step is to automatically collect initial rainwater: during rainfall, initial rainwater in the polluted area flows into the safety diversion well 1 through the drainage device and enters the collecting tank 2. When the liquid level meter 41 detects that the liquid level in the collecting tank 2 reaches the preset level, the PLC control terminal 3 controls the electric gate valve to be closed. At this time, it can be ensured that the subsequent rainwater is clean rainwater after the contaminated initial rainwater is collected. Because the electric gate valve is in a closed state, clean rainwater is directly discharged to the municipal rainwater pipe network through the overflow port 12.
And step two, automatically detecting initial rainwater: after the collection is completed for a preset time, the sampling pump 46 is started, rainwater is pumped from the collection tank 2, the ammonia nitrogen meter 43 and the COD meter 42 are automatically detected, and meanwhile the PH meter 44 is automatically detected.
And thirdly, automatically disposing and splitting: when all the detection results are qualified, the PLC control terminal 3 controls the second electric valve 56 to be opened, the submersible pump 52 is started, and the collected initial rainwater is discharged into the rainwater well 58 in the factory. When the gauge 41 detects a low level, the submersible pump 52 is stopped, the second electric valve 56 is closed, and the electric gate valve is opened, waiting for the next round of rainfall collection. When any one of the detection values of ammonia nitrogen detection, COD detection and PH detection is not qualified, the PLC control terminal 3 controls the first electric valve 55 to be opened, the submersible pump 52 is started, and the collected initial rainwater is discharged into the sewage treatment device 57 for purification treatment. When the liquid level meter 41 detects a low liquid level, the submersible pump 52 stops, the first electric valve 55 is closed, the electric gate valve is opened, and the next round of rainfall collection is waited for.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (8)
1. The utility model provides a factory initial rainwater collection detects processing apparatus which characterized in that: the device comprises a safety diversion well, a collecting tank, a detection assembly, a drainage assembly and a PLC control terminal; the safety diversion well is provided with a water inlet, a water outlet and an overflow port, wherein the water inlet is used for rainwater in a pollution area to enter the safety diversion well, the water inlet is higher than the overflow port, and the overflow port is higher than the water outlet; the collecting tank is communicated with the water outlet through a first pipeline, and an electric flashboard valve is arranged on the first pipeline; the detection assembly comprises a liquid level meter, a COD (chemical oxygen demand) meter, an ammonia nitrogen meter and a PH meter which are arranged on the collecting tank; the drainage assembly comprises a first drainage branch pipe communicated with the collecting tank and the sewage treatment device, a second drainage branch pipe communicated with the collecting Chi Heyu well, a first electric valve is arranged on the first drainage branch pipe, and a second electric valve is arranged on the second drainage branch pipe; and the PLC control terminal is respectively and electrically connected with the electric flashboard valve, the liquid level meter, the COD meter, the ammonia nitrogen meter, the PH meter, the first electric valve and the second electric valve.
2. The factory floor initial rainwater collection, detection and treatment device according to claim 1, wherein the drainage assembly comprises a drainage main pipe, two submersible pumps are arranged at one end of the drainage main pipe in parallel, and the first drainage branch pipe and the second drainage branch pipe are arranged at the other end of the drainage main pipe in parallel.
3. The apparatus according to claim 1, wherein the pool capacity v=fxh/1000, where F is the contaminated area in m 2 H is the rainfall depth, the unit is mm, V is the collecting tank capacity, and the unit is m 3 。
4. The factory initial rainwater collection, detection and treatment device according to claim 1, further comprising a sampling pump, wherein one end of the sampling pump is communicated with the collection Chi Naxiang through a pipeline, and the other end of the sampling pump is communicated with the COD meter and the ammonia nitrogen meter through a pipeline.
5. The factory floor initial rainwater collection, detection and treatment device of claim 1, further comprising a weir in communication with the water inlet of the safety diversion well, the weir configured to allow rainwater in the contaminated area to enter the safety diversion well.
6. The factory initial rainwater collection, detection and treatment device according to claim 1, wherein a sewage interception hanging basket sedimentation device is further arranged in the safety diversion well and is arranged below the water inlet.
7. The factory floor initial rainwater collection, detection and treatment device of claim 1, wherein the contaminated zone comprises at least one of a factory tank zone, a pump zone, a hazardous waste storage zone, and an incinerator zone.
8. The apparatus according to claim 1, wherein the overflow port is connected to the catch basin via a drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320918920.6U CN220167083U (en) | 2023-04-23 | 2023-04-23 | Initial rainwater collecting, detecting and processing device for factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320918920.6U CN220167083U (en) | 2023-04-23 | 2023-04-23 | Initial rainwater collecting, detecting and processing device for factory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220167083U true CN220167083U (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320918920.6U Active CN220167083U (en) | 2023-04-23 | 2023-04-23 | Initial rainwater collecting, detecting and processing device for factory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220167083U (en) |
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2023
- 2023-04-23 CN CN202320918920.6U patent/CN220167083U/en active Active
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