CN219463029U - Dynamic stable mud discharging device for multi-tube membrane system - Google Patents
Dynamic stable mud discharging device for multi-tube membrane system Download PDFInfo
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- CN219463029U CN219463029U CN202320389258.XU CN202320389258U CN219463029U CN 219463029 U CN219463029 U CN 219463029U CN 202320389258 U CN202320389258 U CN 202320389258U CN 219463029 U CN219463029 U CN 219463029U
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- sludge
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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
The utility model relates to a dynamic stable sludge discharge device for a multi-row tubular membrane system, which comprises a concentration tank, a tubular membrane assembly, a circulating pump, a sludge discharge pump and a sludge tank; the wastewater in the concentration tank is drained to the water inlet end of the tubular membrane assembly after passing through the circulating pump, the concentrated water is drained to the concentration tank after passing through the water outlet end of the tubular membrane assembly, and the purified water at the water producing end of the tubular membrane assembly is drained to the water producing tank after passing through the water producing valve and the water producing flowmeter; the bottom of the concentration tank is connected with a sludge discharge pump through a pipeline, the sludge discharge pump is used for draining wastewater in the concentration tank to the sludge tank, and a sludge discharge electromagnetic valve and a sludge discharge flowmeter are connected on the pipeline between the sludge discharge pump and the sludge tank; a branch pipeline is connected to the pipeline between the sludge discharge pump and the sludge discharge electromagnetic valve, a back pressure valve is arranged on the branch pipeline, and the wastewater is drained to the concentration tank through the branch pipeline.
Description
Technical Field
The utility model relates to the technical field of solid-liquid separation of tubular microfiltration membranes, in particular to a dynamic stable sludge discharge device for a multi-row tubular membrane system.
Background
The pipe type microfiltration membrane solid-liquid separation technology is widely applied, a solid-liquid mixture can be trapped in a system through a pipe type membrane system, filtered water flows to a next unit, concentrated water is trapped in the system, and along with the operation of the system, the concentration of sludge in the concentrated water is higher and higher, so that some concentrated water is required to be drained to maintain the concentration of sludge in the system.
The tubular filter membrane is based on the principle of cross-flow filtration, and the cross-flow membrane filtration applies pressure to fluid to be treated parallel to the surface of the membrane, wherein part of the fluid penetrates through the surface of the membrane to form produced water; particles and the like in the fluid are blocked in the concentrated water, and since the fluid continuously flows through the membrane surface, the particles to be removed are not accumulated on the membrane surface, but are carried away from the membrane surface by the concentrated water, and thus one fluid becomes two streams, i.e., produced water and concentrated water. In the cross-flow filtration process, certain sludge is needed in the wastewater to maintain the required scraping force on the membrane surface, so that the rapid deposition of pollutants on the membrane surface is prevented. If the system discharges too much sludge, the concentration of the sludge in the water is too low, the scraping force on the surface of the membrane is weakened, and pollutants can accumulate on the surface of the membrane to cause fouling and blocking of the membrane; if the sludge discharge amount of the system is too small, the sludge concentration is too high, and the risk of blocking the filtering pipeline exists, so that the maintenance of the sludge concentration balance in the membrane system is important.
The water yield during the operation of the tubular microfiltration membrane system is fluctuated, while the traditional sludge discharge mode is to install a sludge pump in a water inlet tank of the tubular microfiltration membrane system, and the sludge concentration in the tubular microfiltration system is maintained by continuously or periodically discharging sludge through the sludge pump, so that the sludge discharge is constant, and in this case, when the water yield of the tubular microfiltration system is high, the sludge discharge is relatively low, the sludge concentration in the system is easily increased, and the membrane tube is blocked. When the water yield of the tubular micro-filtration system is low, the sludge discharge amount is larger than the water yield, the concentration of sludge in the system is easy to reduce, the scraping force on the surface of the membrane is weakened, pollutants can accumulate on the surface of the membrane, the membrane is blocked, and meanwhile, the waste of adding medicament in the water treatment process can be caused.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a dynamic stable mud discharging device for a multi-tube membrane system,
in order to solve the technical problems, the utility model is realized in the following way: the utility model relates to a dynamic stable sludge discharge device for a multi-row tubular membrane system, which comprises a concentration tank, a tubular membrane assembly, a circulating pump, a sludge discharge pump and a sludge tank; the wastewater in the concentration tank is drained to the water inlet end of the tubular membrane assembly after passing through the circulating pump, the concentrated water is drained to the concentration tank after passing through the water outlet end of the tubular membrane assembly, and the purified water at the water producing end of the tubular membrane assembly is drained to the water producing tank after passing through the water producing valve and the water producing flowmeter; the bottom of the concentration tank is connected with a sludge discharge pump through a pipeline, the sludge discharge pump is used for draining wastewater in the concentration tank to the sludge tank, and a sludge discharge electromagnetic valve and a sludge discharge flowmeter are connected on the pipeline between the sludge discharge pump and the sludge tank; a branch pipeline is connected to the pipeline between the sludge discharge pump and the sludge discharge electromagnetic valve, a back pressure valve is arranged on the branch pipeline, and the wastewater is drained to the concentration tank through the branch pipeline.
The mud discharging electromagnetic valve, the mud discharging flowmeter and the water producing flowmeter are all connected with the controller, and the controller collects electric signals of the mud discharging flowmeter and the water producing flowmeter for comparison and controls the opening degree of the mud discharging electromagnetic valve.
And a water inlet valve and a water inlet flowmeter are arranged on a pipeline between the circulating pump and the water inlet end of the tubular membrane assembly.
And a pipeline at the water outlet end of the tubular membrane assembly is connected with a concentrate valve.
The utility model has the positive effects that: when the tubular membrane system in the device adopts single-row or multi-row tubular membranes and shares a concentration tank, a water production flow meter is arranged on a main pipe for producing water by the tubular membranes, and the water production of the multi-row tubular membrane system is summarized; in the operation process, only one set of sludge discharge device is needed when the concentration tank discharges sludge, the sludge discharge pump is always in an on working state, the controller collects data of the water production flowmeter according to a set data collection period and compares the data with feedback data of the sludge discharge flowmeter so as to control the opening degree of the sludge discharge electromagnetic valve, so that the sludge concentration balance in the whole tubular membrane system can be maintained, the whole system is simple to control and low in configuration cost, and the system can be effectively popularized and applied in a large range.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of the structure of the present utility model
In the figure, 1, a concentration tank; 2. a circulation pump; 3. a water inlet valve; 4. a water inlet flowmeter; 5. a tubular membrane assembly; 6. a water producing valve; 7. a water production flowmeter; 8. a water producing pool; 9. a concentrate valve; 10. a mud pump; 11. a back pressure valve; 12. a mud discharging electromagnetic valve; 13. a mud discharge flowmeter; 14. and (5) a sludge pool.
Detailed Description
As a specific embodiment of the present utility model, as shown in fig. 1, a dynamic stable sludge discharge device for a multi-row tubular membrane system comprises a concentration tank 1, a tubular membrane assembly 5, a circulating pump 2, a sludge discharge pump 10 and a sludge tank 14; the wastewater in the concentration tank 1 is led to the water inlet end of the tubular membrane assembly 5 after passing through the circulating pump 2, the concentrated water is led to the concentration tank 1 after passing through the water outlet end of the tubular membrane assembly 5, and the purified water at the water producing end of the tubular membrane assembly 5 is led to the water producing tank 8 after passing through the water producing valve 6 and the water producing flow meter 7; wherein, a water inlet valve 3 and a water inlet flowmeter 4 are arranged on a pipeline between the circulating pump 2 and the water inlet end of the tubular membrane assembly 5, and a concentrate valve 9 is connected on a pipeline at the water outlet end of the tubular membrane assembly 5; the bottom of the concentration tank 1 is connected with a sludge pump 10 through a pipeline, the sludge pump 10 drains the wastewater in the concentration tank 1 to a sludge tank 14, and a sludge discharge electromagnetic valve 12 and a sludge discharge flowmeter 13 are connected on the pipeline between the sludge pump 10 and the sludge tank 14; the mud discharging electromagnetic valve 12, the mud discharging flowmeter 13 and the water producing flowmeter 7 are all connected with a controller, and the controller collects and compares the electric signals of the mud discharging flowmeter 13 and the water producing flowmeter 7 and controls the opening degree of the mud discharging electromagnetic valve 12.
A branch pipeline is connected to a pipeline between the sludge discharge pump 10 and the sludge discharge electromagnetic valve 12, a back pressure valve 11 is arranged on the branch pipeline, and wastewater is led to the concentration tank 1 through the branch pipeline; when the opening of the mud discharging electromagnetic valve 12 is smaller, the pressure in the pipeline can be released to the concentration tank 1 through the back pressure valve 11, so that the system safety is maintained.
In the running process, the sludge pump 10 is always in an on working state, the controller collects the data of the water production flow meter 7 according to a set data collection period (such as every 1 minute), compares the data with the feedback data of the sludge discharge flow meter 13, and controls the opening degree of the sludge discharge electromagnetic valve 12 so as to continuously correct the sludge discharge amount, thereby realizing that the sludge concentration in the concentration tank 1 is always in a stable range under different water production conditions, namely maintaining the sludge concentration balance in the whole tubular membrane system.
It should be noted that the foregoing is merely a preferred embodiment of the apparatus structure of the present utility model, and is not intended to limit the technical scope of the present utility model. Therefore, any minor modifications, modifications and equivalent changes made to the above examples in accordance with the core technology of the present utility model are within the scope of the present utility model, and all fall within the protection scope of the present utility model.
Claims (4)
1. A be used for multiseriate tubular membrane system developments to stabilize mud device, its characterized in that: comprises a concentration tank, a tubular membrane component, a circulating pump, a sludge pump and a sludge tank; the wastewater in the concentration tank is drained to the water inlet end of the tubular membrane assembly after passing through the circulating pump, the concentrated water is drained to the concentration tank after passing through the water outlet end of the tubular membrane assembly, and the purified water at the water producing end of the tubular membrane assembly is drained to the water producing tank after passing through the water producing valve and the water producing flowmeter; the bottom of the concentration tank is connected with a sludge discharge pump through a pipeline, the sludge discharge pump is used for draining wastewater in the concentration tank to the sludge tank, and a sludge discharge electromagnetic valve and a sludge discharge flowmeter are connected on the pipeline between the sludge discharge pump and the sludge tank; a branch pipeline is connected to the pipeline between the sludge discharge pump and the sludge discharge electromagnetic valve, a back pressure valve is arranged on the branch pipeline, and the wastewater is drained to the concentration tank through the branch pipeline.
2. A dynamic stable mud discharging device for a multi-tube membrane system according to claim 1, wherein: the mud discharging electromagnetic valve, the mud discharging flowmeter and the water producing flowmeter are all connected with the controller, and the controller collects electric signals of the mud discharging flowmeter and the water producing flowmeter for comparison and controls the opening degree of the mud discharging electromagnetic valve.
3. A dynamic stable mud discharging device for a multi-tube membrane system according to claim 1, wherein: and a water inlet valve and a water inlet flowmeter are arranged on a pipeline between the circulating pump and the water inlet end of the tubular membrane assembly.
4. A dynamic stable mud discharging device for a multi-tube membrane system according to claim 1, wherein: and a pipeline at the water outlet end of the tubular membrane assembly is connected with a concentrate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320389258.XU CN219463029U (en) | 2023-03-05 | 2023-03-05 | Dynamic stable mud discharging device for multi-tube membrane system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320389258.XU CN219463029U (en) | 2023-03-05 | 2023-03-05 | Dynamic stable mud discharging device for multi-tube membrane system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219463029U true CN219463029U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320389258.XU Active CN219463029U (en) | 2023-03-05 | 2023-03-05 | Dynamic stable mud discharging device for multi-tube membrane system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219463029U (en) |
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2023
- 2023-03-05 CN CN202320389258.XU patent/CN219463029U/en active Active
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