CN211896248U - Air source type vacuumizing device for MBR sewage treatment system - Google Patents
Air source type vacuumizing device for MBR sewage treatment system Download PDFInfo
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- CN211896248U CN211896248U CN202020178400.2U CN202020178400U CN211896248U CN 211896248 U CN211896248 U CN 211896248U CN 202020178400 U CN202020178400 U CN 202020178400U CN 211896248 U CN211896248 U CN 211896248U
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- vacuum generator
- separation tank
- sewage treatment
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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
Abstract
The utility model discloses an air source vacuum pumping device for an MBR sewage treatment system, relating to the sewage treatment technology and comprising an air-water separation tank, a vacuum generator and an air compressor; two ends of the side wall of the gas-water separation tank are provided with tuning fork liquid level switches, and the tuning fork liquid level switches are connected with a PLC (programmable logic controller) through leads; the two ends of the gas-water separation tank are respectively provided with a water inlet and an exhaust port; the exhaust port is connected with the inlet of the vacuum generator through a connecting pipeline a, and the bottom outlet of the vacuum generator is connected to the MBR membrane pool; the water inlet is connected with a water outlet main pipe of the MBR membrane component through a suction pipe; the air compressor supplies air to the gas-water separation tank and the vacuum generator under the control of the PLC. The utility model discloses the energy consumption is low, and the running cost is low.
Description
Technical Field
The utility model belongs to the sewage treatment technology, concretely relates to air supply nature evacuating device for MBR sewage treatment system.
Background
In present MBR sewage treatment system, the product water pipeline generally can be higher than the membrane cisterna liquid level, for can be with the air escape in the product water pipeline, in the prior art, generally adopt the simple of being connected with the self priming pump, or the mode of centrifugal pump + diversion jar is got rid of the interior air of pipeline, this several kinds of modes can only satisfy essential membrane water outlet requirement, can not ensure the long-term stable play water of MBR system, if the membrane cisterna liquid level is far away with water pump mounted position distance, exceed the self priming vacuum degree of water pump, then the membrane system can't normally produce water, or at the operation in-process, product water pipeline can long-term gas accumulation, lead to self priming pump or diversion jar to be difficult to start, even take place the cavitation phenomenon, and there is gaseous also can lead to producing water fluctuation in the product water pipeline, operating pressure is unstable, influence normally producing water. The traditional solution is to fill water into a water production pipeline for exhausting, the field is difficult to realize, and the automatic operation cannot be realized, so that the convenient and automatic vacuum pumping method is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of unstable water produced by a membrane system in the prior art and providing an air source vacuum extractor for an MBR sewage treatment system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
designing an air source vacuum pumping device for an MBR sewage treatment system, which comprises an air-water separation tank, a vacuum generator and an air compressor;
two ends of the side wall of the gas-water separation tank are provided with tuning fork liquid level switches, and the tuning fork liquid level switches are connected with a PLC (programmable logic controller) through leads;
the two ends of the gas-water separation tank are respectively provided with a water inlet and an exhaust port;
the exhaust port is connected with an inlet of the vacuum generator through a connecting pipeline a, and a bottom outlet of the vacuum generator is connected to the MBR membrane pool;
the water inlet is connected with a water outlet main pipe of the MBR membrane component through a suction pipe, and the water outlet end of the suction pipe is connected with a centrifugal pump which sends clean water into a clean water inlet tank;
the air compressor supplies air for the gas-water separation tank and the vacuum generator under the control of the PLC, and an air supply distribution assembly is arranged between the air compressor and the gas-water separation tank as well as between the air compressor and the vacuum generator.
Further, the air feed distribution subassembly includes pneumatic angle seat valve, pneumatic solenoid diverter valve, tap a, tap b, connecting line b and connecting line c, tap a connects between air compressor's air feed end and pneumatic solenoid diverter valve, tap b connects between vacuum generator and pneumatic solenoid diverter valve, all the other interfaces can be a plurality of MBR sewage treatment system air supplies on tap a, pneumatic angle seat valve connects on connecting line a, pneumatic angle seat valve's interface is connected with pneumatic solenoid diverter valve and tap b's interface respectively through connecting line b, pneumatic solenoid diverter valve is by PLC controller control connection.
Further, an air filter, a pressure reducing valve and an oil atomizer are arranged between the air compressor and the tap a.
Furthermore, a valve and a pressure transmitter are sequentially connected to the pipe fitting on the upstream of the centrifugal pump, the pressure transmitter is controlled and connected by a PLC, and an electric contact pressure gauge, the valve and an electromagnetic flowmeter are sequentially connected to the pipe fitting on the downstream of the centrifugal pump.
The utility model provides a pair of an air supply nature evacuating device for MBR sewage treatment system, beneficial effect lies in: the utility model discloses a convenient automatic evacuation, and with the vacuum pump, evacuating device such as roots's fan compares, and the air compressor of this device also is the air generating device of other air source nature equipment on-the-spot, need not additionally to purchase, and the energy consumption is low, and the running cost is low.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Labeled as: the device comprises a gas-water separation tank 1, a vacuum generator 2, a connecting pipeline a3, an air compressor 4, a tuning fork liquid level switch 5, a water inlet 6, an exhaust port 7, a pneumatic angle seat valve 8, a connecting pipeline b9, a PLC (programmable logic controller) 10, an air source processing device 11, a pneumatic electromagnetic steering valve 12, a tap a13, a tap b14, an MBR membrane pool 15, an MBR membrane module 16, a suction pipe 17, a centrifugal pump 18, an electric contact pressure gauge 19, an electromagnetic flow meter 20 and a pressure transmitter 21.
Detailed Description
The present invention will be further described with reference to the following specific examples. These examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The structural features of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, an air source vacuum extractor for an MBR sewage treatment system is characterized by comprising an air-water separation tank 1, a vacuum generator 2 and an air compressor 4; two ends of the side wall of the gas-water separation tank 1 are provided with tuning fork liquid level switches 5, and the tuning fork liquid level switches 5 are connected with a PLC (programmable logic controller) 10 through leads; the two ends of the gas-water separation tank 1 are respectively provided with a water inlet 6 and an exhaust port 7; the exhaust port 7 is connected with the inlet of the vacuum generator 2 through a connecting pipeline a3, and the bottom outlet of the vacuum generator 2 is connected to the MBR membrane pool 15; the water inlet 6 is connected with a water outlet main pipe of the MBR membrane module 16 through a suction pipe 17, and the water outlet end of the suction pipe 17 is connected with a centrifugal pump 18 which sends clean water into a clean water tank; the air compressor 4 supplies air to the gas-water separation tank 1 and the vacuum generator 2 under the control of the PLC 10, and an air supply distribution assembly is arranged between the air compressor 4 and the gas-water separation tank 1 and the vacuum generator 2.
The air supply distribution assembly comprises an air-operated angle seat valve 8, an air-operated electromagnetic steering valve 12, a tap a13, a tap b14, a connecting pipeline b9 and a connecting pipeline c22, wherein the tap a13 is connected between an air supply end of the air compressor 4 and the air-operated electromagnetic steering valve 12, the tap b14 is connected between the vacuum generator 2 and the air-operated electromagnetic steering valve 12, the rest interfaces on the tap a13 can supply air for a plurality of MBR sewage treatment systems, the air-operated angle seat valve 8 is connected on the connecting pipeline a3, the interfaces of the air-operated angle seat valve 8 are respectively connected with the interfaces of the air-operated electromagnetic steering valve 12 and the tap b14 through the connecting pipeline b9, and the air-operated electromagnetic steering valve 12 is controlled and connected by the PLC 10.
An air filter, a pressure reducing valve and an oil mist device are also provided between the air compressor 4 and the tap a 13.
The upstream pipe fitting of the centrifugal pump 18 is sequentially connected with a valve and a pressure transmitter 21, the pressure transmitter 21 is controlled and connected by a PLC (programmable logic controller) 10, and the downstream pipe fitting of the centrifugal pump 18 is sequentially connected with an electric contact pressure gauge 19, a valve and an electromagnetic flowmeter 20
The utility model discloses an air supply nature evacuating device for MBR sewage treatment system adopts convenient automatic evacuation, and compares with vacuum pump, evacuating device such as roots's fan, and the air compressor of this device also is the air generating device of other air supply nature equipment on-the-spot, need not additionally to purchase, and the energy consumption is low, and the running cost is low.
Specifically, when the liquid level in the gas-water separation tank 1 rises to a high liquid level, the PLC 10 controls the pneumatic electromagnetic directional valve 12 to close the pneumatic angle seat valve, and meanwhile, the vacuum generator stops working and stops pumping air. The centrifugal pump is opened, and clear water in the membrane module can enter the centrifugal pump under the action of negative pressure suction; when the liquid level of the gas-water separation tank 1 is reduced to a low liquid level, the centrifugal pump is closed, the pneumatic electromagnetic directional valve is controlled through the PLC, the pneumatic angle seat valve is opened, compressed air enters the connecting pipeline 3 through the connecting pipeline 9 and the pneumatic angle seat valve, the vacuum generator works and starts to pump air, air in the gas-water separation tank 1 is discharged from the vacuum generator 2, the discharged water of the vacuum generator 2 is directly discharged into the membrane pool, the liquid level in the gas-water separation tank 1 can be gradually increased to a set value along with the gradual reduction of the vacuum degree in the gas-water separation tank 1, the vacuum generator 2 is closed again at the moment, the centrifugal pump is opened, and the reciprocating operation is carried out in such.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An air source vacuum pumping device for an MBR sewage treatment system is characterized by comprising an air-water separation tank (1), a vacuum generator (2) and an air compressor (4);
two ends of the side wall of the gas-water separation tank (1) are provided with tuning fork liquid level switches (5), and the tuning fork liquid level switches (5) are connected with a PLC (programmable logic controller) controller (10) through leads;
a water inlet (6) and an exhaust port (7) are respectively arranged at two ends of the gas-water separation tank (1);
the exhaust port (7) is connected with an inlet of the vacuum generator (2) through a connecting pipeline a (3), and a bottom outlet of the vacuum generator (2) is connected to an MBR membrane pool (15);
the water inlet (6) is connected with a water outlet main pipe of the MBR membrane module (16) through a suction pipe (17), and the water outlet end of the suction pipe (17) is connected with a centrifugal pump (18) which sends clean water into a clean water inlet tank;
the air compressor (4) supplies air for the gas-water separation tank (1) and the vacuum generator (2) under the control of the PLC (10), and an air supply distribution assembly is arranged between the air compressor (4) and the gas-water separation tank (1) and the vacuum generator (2).
2. The air source vacuum pumping device for MBR sewage treatment system according to claim 1, wherein the air supply distribution assembly comprises an air-operated angle seat valve (8), an air-operated electromagnetic steering valve (12), a tap a (13), a tap b (14), a connecting pipeline b (9) and a connecting pipeline c (22), the tap a (13) is connected between the air supply end of the air compressor (4) and the air-operated electromagnetic steering valve (12), the tap b (14) is connected between the vacuum generator (2) and the air-operated electromagnetic steering valve (12), the rest of the interfaces on the tap a (13) can supply air for a plurality of MBR sewage treatment systems, the air-operated angle seat valve (8) is connected on the connecting pipeline a (3), the interfaces of the air-operated angle seat valve (8) are respectively connected with the interfaces of the air-operated electromagnetic steering valve (12) and the tap b (14) through the connecting pipeline b (9), the pneumatic electromagnetic steering valve (12) is controlled and connected by a PLC (programmable logic controller) controller (10).
3. The air source vacuum pumping device for the MBR sewage treatment system according to claim 2, wherein an air filter, a pressure reducing valve and an oil mist device are further arranged between the air compressor (4) and the tap a (13).
4. The air source vacuum pumping device for the MBR sewage treatment system as set forth in claim 1, wherein a valve and a pressure transmitter (21) are connected to the upstream pipe of the centrifugal pump (18) in sequence, the pressure transmitter (21) is controlled by the PLC controller (10) to be connected, and an electric contact pressure gauge (19), a valve and an electromagnetic flow meter (20) are connected to the downstream pipe of the centrifugal pump (18) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020178400.2U CN211896248U (en) | 2020-02-17 | 2020-02-17 | Air source type vacuumizing device for MBR sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020178400.2U CN211896248U (en) | 2020-02-17 | 2020-02-17 | Air source type vacuumizing device for MBR sewage treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211896248U true CN211896248U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020178400.2U Active CN211896248U (en) | 2020-02-17 | 2020-02-17 | Air source type vacuumizing device for MBR sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211896248U (en) |
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2020
- 2020-02-17 CN CN202020178400.2U patent/CN211896248U/en active Active
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