CN219161724U - On-line SV30 sampling and detecting device for aeration tank - Google Patents
On-line SV30 sampling and detecting device for aeration tank Download PDFInfo
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- CN219161724U CN219161724U CN202320162155.XU CN202320162155U CN219161724U CN 219161724 U CN219161724 U CN 219161724U CN 202320162155 U CN202320162155 U CN 202320162155U CN 219161724 U CN219161724 U CN 219161724U
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- aeration tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
An on-line sampling SV30 detection device of an aeration tank comprises the aeration tank, wherein the side wall of the aeration tank is sequentially provided with at least two sampling ports from top to bottom, each sampling port is connected with a water suction port of a pump through a pipeline, a water outlet of the pump is connected with a sampling tank through a pipeline, an inner cavity of the sampling tank is connected with the water suction port of the sampling pump through the sampling pipeline, a water outlet of the sampling pump is connected with a water outlet pipe, and a pipe orifice of the water outlet pipe corresponds to a pipe orifice at the upper end of a measuring cylinder; the sampling ports are respectively provided with a switch valve; when each switch valve is in an open state, the sewage sample to be detected in the sampling groove is a sample formed by converging sewage at two sampling ports; when only one of the switch valves is in an open state, the sewage sample to be detected in the sampling groove is a sample formed by sewage at a sampling port. According to the utility model, under the condition that manual sampling is not adopted, multipoint sampling of the aeration tank is realized, and the reasonable setting of the sampling position ensures the reliability of the measurement result.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to a sludge detection device.
Background
An important link of sewage treatment is firstly a process of synthesizing zoogloea by organic matters in sewage under the action of microorganisms in an aeration tank, and secondly a flocculation, precipitation and separation process of thallus organic matters; research proves that the main factors affecting the sewage treatment quality are as follows: firstly, the size of activated sludge concentration (MLSS) formed by thallus organic matters in an aeration tank; secondly, the quality of the coagulation and precipitation performance of the activated sludge. On one hand, the quality of sludge coagulation and precipitation performance can be directly known; on the other hand, the sludge sedimentation ratio is also quantitative reflection of the sludge concentration to a certain extent; thus, the sludge sedimentation ratio is an important parameter for production run managers who treat wastewater with an activated sludge process to guide the process operation.
At present, SV30 measurement is manually measured, namely, the sample is manually sampled and then is placed in a glass measuring cylinder, and the sample is read after time. The depth of the aeration tank is deeper, generally 4-5 meters, the manual sampling has a certain danger, the manual sampling is carried out, the sampling point is single, and the sewage at the upper part of the aeration tank is taken more.
Disclosure of Invention
The utility model aims to provide the device for detecting the SV30 by online sampling of the aeration tank, which aims at the defects, realizes multipoint sampling of the aeration tank under the condition that manual sampling is not adopted, and ensures the reliability of the measurement result by reasonably setting the sampling position.
The technical scheme of the utility model is as follows: the device comprises an aeration tank, wherein the side wall of the aeration tank is sequentially provided with at least two sampling ports from top to bottom, each sampling port is connected with a water suction port of a pump through a pipeline, a water outlet of the pump is connected with a sampling tank through a pipeline, an inner cavity of the sampling tank is connected with the water suction port of the sampling pump through the sampling pipeline, a water outlet of the sampling pump is connected with a water outlet pipe, and a pipe orifice of the water outlet pipe corresponds to a pipe orifice at the upper end of a measuring cylinder; the sampling ports are respectively provided with a switch valve; when each switch valve is in an open state, the sewage sample to be detected in the sampling groove is a sample formed by converging sewage at two sampling ports; when only one of the switch valves is in an open state, the sewage sample to be detected in the sampling groove is a sample formed by sewage at a sampling port.
The sampling tank is connected with the aeration tank through a return pipeline.
The inner cavity of the sampling tank is divided into an upper separation cavity and a lower separation cavity by a gate door of a gate valve, the upper separation cavity is provided with a sampling pipeline corresponding to the upper separation cavity, and the lower separation cavity is connected with the aeration tank by a backflow pipeline.
The left side and the right side of the measuring cylinder are respectively provided with a light source and a photosensitive element, and the light source and the photosensitive element are connected with the controller.
The utility model can avoid the problem of single sampling point of SV30 measurement manual sampling, and can measure SV30 at different liquid levels in the aeration tank by setting three sampling points, and the multipoint sampling ensures that the measured SV30 is more accurate and reliable, so that operation management staff can know the concentration and the argillaceous condition of the activated sludge in the aeration tank at any time, thereby grasping and controlling the operation parameters of the whole process.
Drawings
FIG. 1 is one of the structural schematic diagrams of the present utility model;
FIG. 2 is a second schematic structural view of the present utility model.
Description of the embodiments
In fig. 1, the side wall of the aeration tank 1 is sequentially provided with three sampling ports from top to bottom, each sampling port is connected with a water suction port of the pump 2 through a pipeline, a water outlet of the pump 2 is connected with the sampling tank 3 through a pipeline, an inner cavity of the sampling tank 3 is connected with a water suction port of the sampling pump 6 through a sampling pipeline, a water outlet of the sampling pump 6 is connected with a water outlet pipe, and a pipe orifice of the water outlet pipe corresponds to a pipe orifice at the upper end of the measuring cylinder 7.
The three sampling ports are respectively provided with a switch valve; when each switch valve is in an open state, the sewage sample to be detected in the sampling groove 3 is a sample formed by converging sewage at three sampling ports. When only one of the on-off valves is in an open state, the sewage sample to be detected in the sampling tank 3 is a sample of sewage formed at a sampling port.
During detection, the switch valves at the three sampling ports are opened, sewage at the three sampling ports simultaneously enters the sampling tank 3 through the pump 2, a sampling pipeline samples from the sampling tank 3 and enters the measuring cylinder 7, and after standing for 30 minutes, the sludge quantity in the measuring cylinder 7 is read out to obtain the SV30.
To detect the SV30 of the sewage at each liquid level, the switch valves at the sampling ports can be opened one by one, and the SV30 of the sewage at the three sampling ports can be measured respectively.
The sampling tank 3 is provided with a gate valve 4, the inner cavity of the sampling tank 3 is divided into an upper separation cavity and a lower separation cavity by a gate of the gate valve 4, the upper separation cavity is provided with a sampling pipeline corresponding to the upper separation cavity, and the lower separation cavity is connected with the aeration tank 1 by a backflow pipeline. When the temperature is lower in winter, in order to avoid sewage in the pipeline to be frozen, guarantee that there is flowing water to flow from the sampling tank all the time in the pipeline, can set up the gate valve 4, the ooff valve of three sampling mouth department all is in the open state, divides into lower compartment, upper compartment with the sampling tank through the gate valve, places in the graduated flask through the sewage in the upper compartment of sampling, can accomplish the sample, and sewage in the lower compartment of sampling tank carries out the aeration tank through the backflow pipeline.
In fig. 2, the light source 8 and the photosensitive element 9 may be disposed on the left and right sides of the measuring cylinder 7, respectively, and after the standing is completed, the controller 80 may determine the value of the sludge in the measuring cylinder 7 by reading the light source range penetrating through the measuring cylinder 7.
Claims (4)
1. An on-line sampling SV30 detection device for an aeration tank is characterized in that: the device comprises an aeration tank (1), wherein the side wall of the aeration tank (1) is sequentially provided with at least two sampling ports from top to bottom, each sampling port is connected with a water suction port of a pump (2) through a pipeline, a water outlet of the pump (2) is connected with a sampling tank (3) through a pipeline, an inner cavity of the sampling tank (3) is connected with the water suction port of a sampling pump (6) through a sampling pipeline, a water outlet of the sampling pump (6) is connected with a water outlet pipe, and a pipe orifice of the water outlet pipe corresponds to a pipe orifice at the upper end of a measuring cylinder (7);
the sampling ports are respectively provided with a switch valve; when each switch valve is in an open state, the sewage sample to be detected in the sampling groove (3) is a sample formed by converging sewage at two sampling ports; when only one of the switch valves is in an open state, the sewage sample to be detected in the sampling groove (3) is a sample formed by sewage at a sampling port.
2. An aeration tank online sampling and SV30 detecting device according to claim 1, wherein: the sampling tank (3) is connected with the aeration tank (1) through a return pipeline (5).
3. An aeration tank online sampling and SV30 detecting device according to claim 1, wherein: the inner cavity of the sampling tank (3) is divided into an upper separation cavity and a lower separation cavity by a gate valve of a gate valve (4), the upper separation cavity is provided with a sampling pipeline corresponding to the upper separation cavity, and the lower separation cavity is connected with the aeration tank (1) by a backflow pipeline.
4. An aeration tank online sampling and SV30 detecting device according to claim 1, wherein: the left side and the right side of the measuring cylinder (7) are respectively provided with a light source (8) and a photosensitive element (9), and the light source (8) and the photosensitive element (9) are connected with a controller (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162155.XU CN219161724U (en) | 2023-02-09 | 2023-02-09 | On-line SV30 sampling and detecting device for aeration tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320162155.XU CN219161724U (en) | 2023-02-09 | 2023-02-09 | On-line SV30 sampling and detecting device for aeration tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219161724U true CN219161724U (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320162155.XU Active CN219161724U (en) | 2023-02-09 | 2023-02-09 | On-line SV30 sampling and detecting device for aeration tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN219161724U (en) |
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2023
- 2023-02-09 CN CN202320162155.XU patent/CN219161724U/en active Active
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