CN215439828U - Energy-saving membrane intermittent purging sewage treatment system coupled with self-priming pump - Google Patents
Energy-saving membrane intermittent purging sewage treatment system coupled with self-priming pump Download PDFInfo
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- CN215439828U CN215439828U CN202120284233.4U CN202120284233U CN215439828U CN 215439828 U CN215439828 U CN 215439828U CN 202120284233 U CN202120284233 U CN 202120284233U CN 215439828 U CN215439828 U CN 215439828U
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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 relates to an energy-saving membrane intermittent sweeping sewage treatment system coupled with a self-priming pump, which comprises an aerobic tank, an MBR membrane tank, a clean water tank, a fan, a self-priming pump and a PLC; the bottom of the aerobic tank is provided with a microporous aerator; the number of the MBR membrane tanks 2 is 1, and the microporous aerator is connected with an air outlet of the fan through a pipeline provided with an aeration electromagnetic valve; an aeration and purging bronchus of a membrane group device in the MBR membrane tank is connected with an air outlet of the fan through a pipeline provided with a membrane purging electromagnetic valve; a suction pipe of a membrane group device in the MBR membrane tank is connected with an inlet of a self-priming pump through a pipeline; the inlet of the self-priming pump is connected with the water inlet of the clean water tank through a pipeline; PLC links to each other with fan, self priming pump, aeration solenoid valve, membrane sweep the solenoid valve respectively. And the self-sucking pump and the membrane are blown and swept in the running process, so that the membrane is blown and swept intermittently. Meanwhile, the aeration of the aerobic tank is linked with the membrane blowing, and the intermittent aeration of the aerobic tank is realized. Has the advantages of flexibility, simplicity, high efficiency and stability.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to an energy-saving membrane intermittent purging sewage treatment system coupled with a self-sucking pump.
Background
With the continuous development of society, the requirements of people on the environment are continuously improved. High standard water quality has been a trend. The MBR process utilizes a membrane technology to replace a traditional secondary sedimentation tank to realize higher-standard effluent quality, however, the energy consumption in the operation process of the MBR process is generally higher than that of the traditional sewage treatment process, which brings problems to the application and popularization of the MBR process. Meanwhile, in the running process of the MBR process, the membrane tank is continuously purged at large air volume, so that DO (dissolved oxygen concentration) in the membrane tank is in a saturated state, and backflow liquid in the saturated DO state can cause that the DO concentration in an anoxic zone is difficult to control, thereby influencing the effluent quality of the whole sewage treatment system. Therefore, how to overcome the defects of the prior art is a problem which needs to be solved urgently in the technical field of sewage treatment at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provides an energy-saving membrane intermittent purging sewage treatment system coupled with a self-priming pump, which can reduce the pollution speed of membrane filaments while purging the membrane filaments in an MBR process, and greatly reduce the operation energy consumption of the whole MBR process sewage treatment plant.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an energy-saving membrane intermittent sweeping sewage treatment system coupled with a self-priming pump, which comprises an aerobic tank, an MBR membrane tank, a clean water tank, a fan, a self-priming pump and a PLC;
the MBR membrane tanks are provided;
the bottom of the aerobic tank is provided with a microporous aerator;
the microporous aerator is connected with an air outlet of the fan through a pipeline provided with an aeration electromagnetic valve;
an aeration purging bronchus of the membrane group device in the MBR membrane tank is also connected with an air outlet of the fan through a pipeline provided with a membrane purging electromagnetic valve;
a suction pipe of a membrane group device in the MBR membrane tank is connected with an inlet of a self-priming pump through a pipeline;
the inlet of the self-priming pump is connected with the water inlet of the clean water tank through a pipeline;
PLC sweeps the solenoid valve with fan, self priming pump, membrane respectively and links to each other.
The utility model provides an energy-saving membrane intermittent sweeping sewage treatment system coupled with a self-priming pump, which comprises an aerobic tank, an MBR membrane tank, a clean water tank, a fan, a self-priming pump and a PLC;
a plurality of MBR membrane tanks are arranged;
the bottom of the aerobic tank is provided with a microporous aerator;
two fans are provided; the microporous aerator is connected with the air outlet of one fan;
an aeration and purging bronchus of a membrane group device in the MBR membrane tank is connected with an air outlet of another fan through a pipeline provided with a membrane purging electromagnetic valve;
a suction pipe of a membrane group device in the MBR membrane tank is connected with an inlet of a self-priming pump through a pipeline;
the inlet of the self-priming pump is connected with the water inlet of the clean water tank through a pipeline;
PLC links to each other with fan, self priming pump, aeration solenoid valve, membrane sweep the solenoid valve respectively.
Further, it is preferable that the membrane in the MBR membrane tank is a hollow fiber membrane.
Further, preferably, the blower is a roots blower.
Further, preferably, the aeration electromagnetic valve and the membrane purging electromagnetic valve are both pneumatic electromagnetic valves.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides an energy-saving membrane intermittent purging sewage treatment system coupled with a self-priming pump, which can realize the intermittent operation of oxygen supply aeration, membrane purging and a suction pump in an MBR process sewage treatment plant, reduce the energy consumption of the sewage treatment plant and reduce the investment cost of the sewage treatment plant. Has the advantages of flexibility, simplicity, high efficiency and stability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention in which 1 MBR membrane tank is provided in an energy-saving membrane intermittent purging sewage treatment system coupled to a self-priming pump;
FIG. 2 is a schematic structural diagram of the present invention when there are 2 MBR membrane tanks in the energy-saving membrane intermittent purging sewage treatment system coupled with a self-priming pump;
wherein, 1, an aerobic tank; 2. an MBR membrane tank; 3. a clean water tank; 4. a fan; 5. a self-priming pump; 6. a PLC; 7. a microporous aerator; 8. an aeration electromagnetic valve; 9. a membrane assembling device; 10. a membrane purge solenoid valve; the arrows indicate the direction of water.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the utility model only and should not be taken as limiting the scope of the utility model. The specific techniques, connections, conditions, or the like, which are not specified in the examples, are performed according to the techniques, connections, conditions, or the like described in the literature in the art or according to the product specification. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1
As shown in fig. 1, an energy-saving membrane intermittent purging sewage treatment system coupled with a self-priming pump comprises an aerobic tank 1, an MBR membrane tank 2, a clean water tank 3, a fan 4, a self-priming pump 5 and a PLC 6;
the bottom of the aerobic tank 1 is provided with a microporous aerator 7;
1 MBR membrane tank 2;
the microporous aerator 7 is connected with the air outlet of the fan 4 through a pipeline provided with an aeration electromagnetic valve 8;
an aeration purging bronchus of a membrane group device 9 in the MBR membrane tank 2 is also connected with an air outlet of the fan 4 through a pipeline provided with a membrane purging electromagnetic valve 10;
a suction pipe of a membrane group device 9 in the MBR membrane tank 2 is connected with an inlet of a self-priming pump 5 through a pipeline;
the inlet of the self-priming pump 5 is connected with the water inlet of the clean water tank 3 through a pipeline;
PLC6 sweeps solenoid valve 10 with fan 4, self priming pump 5, aeration solenoid valve 8, membrane respectively and links to each other for control fan 4, self priming pump 5, aeration solenoid valve 8, membrane sweep opening of solenoid valve 10 stop.
Preferably, the membrane in the MBR membrane tank 2 adopts a hollow fiber membrane.
Preferably, the blower 4 is a roots blower.
Preferably, the aeration electromagnetic valve 8 and the membrane purging electromagnetic valve 10 are both pneumatic electromagnetic valves.
In the operation process, if there are only 1 MBR membrane tanks 2, that is, there is only one set of membrane modules 9, the operation mode is as follows:
if set up membrane purge solenoid valve 10 opening time to 2 minutes, close time and set up to 7 minutes (this time can set up through PLC6 according to actual conditions), then self priming pump 5 can start immediately and last 7 minutes time when the membrane stops sweeping, realizes the linkage of membrane purge and self priming pump 5. Meanwhile, when the membrane stops blowing, the aeration electromagnetic valve 8 is opened and lasts for 7 minutes to realize aeration and oxygen supply of the aerobic tank 1, so that the aeration of the aerobic tank 1 and the blowing of the MBR membrane tank 2 are linked. Meanwhile, when the membrane purging electromagnetic valve 10 is opened for 2 minutes, the self-sucking pump 5 stops running and lasts for 2 minutes, and the aeration electromagnetic valve 8 is closed and lasts for 2 minutes. Therefore, the membrane purging and the self-sucking pump 5 are coupled in a reciprocating mode, and the membrane purging and the intermittent operation of the aerobic tank 1 are realized simultaneously. The operation method greatly reduces the membrane pollution speed and reduces the operation energy consumption and the investment cost of the sewage treatment system. Meanwhile, the intermittent aeration of the aerobic tank is beneficial to strengthening the nitrogen and phosphorus removal of the sewage treatment system and improving the quality of the effluent.
Example 2
As shown in fig. 2, an energy-saving membrane intermittent purging sewage treatment system coupled with a self-priming pump is characterized by comprising an aerobic tank 1, an MBR membrane tank 2, a clean water tank 3, a fan 4, a self-priming pump 5 and a PLC 6;
a plurality of MBR membrane tanks 2 are arranged; as in fig. 2, there are two MBR membrane tanks 2;
the bottom of the aerobic tank 1 is provided with a microporous aerator 7;
two fans 4 are provided; the microporous aerator 7 is connected with the air outlet of one fan 4;
an aeration purging bronchus of a membrane group device 9 in the MBR membrane tank 2 is connected with an air outlet of the other fan 4 through a pipeline provided with a membrane purging electromagnetic valve 10;
a suction pipe of a membrane group device 9 in the MBR membrane tank 2 is connected with an inlet of a self-priming pump 5 through a pipeline;
the inlet of the self-priming pump 5 is connected with the water inlet of the clean water tank 3 through a pipeline;
PLC6 sweeps solenoid valve 10 with fan 4, self priming pump 5, membrane respectively and links to each other for control fan 4, self priming pump 5, membrane sweep opening of solenoid valve 10 stop.
Preferably, the membrane in the MBR membrane tank 2 adopts a hollow fiber membrane.
Preferably, the blower 4 is a roots blower.
Preferably, the aeration electromagnetic valve 8 and the membrane purging electromagnetic valve 10 are both pneumatic electromagnetic valves.
In the operation process, if there are a plurality of MBR membrane tanks 2, and if there are more than two groups of membrane modules 9, the operation mode is as follows:
if the module 9 is 2 groups, the opening time of the membrane purging electromagnetic valve 10 is set to 2 minutes, the closing time is set to 2 minutes (the time can be set through the PLC6 according to actual conditions), and then the membrane module is alternately purged for 2 minutes by aeration with large air volume and stopped for 2 minutes.
If the module 9 is 3 groups, the opening time of the membrane purging electromagnetic valve 10 is set to 3 minutes, the closing time is set to 6 minutes (the time can be set through the PLC6 according to actual conditions), and the membrane module is alternately purged for 3 minutes by aeration with large air volume and stopped for 6 minutes; namely, a plurality of groups of membrane group devices 9 are provided, the membrane purging electromagnetic valve 10 is opened for a few minutes, and the like; however, the present invention is not limited to this, and may be set according to actual circumstances.
The self-priming pump 5 suction and stop times, which are not associated with membrane purging, are performed at PLC6 settings. The operation mode changes the traditional continuous aeration membrane purging mode, realizes intermittent aeration purging, and greatly reduces the operation energy consumption of sewage treatment.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. An energy-saving membrane intermittent sweeping sewage treatment system coupled with a self-priming pump is characterized by comprising an aerobic tank (1), an MBR membrane tank (2), a clean water tank (3), a fan (4), a self-priming pump (5) and a PLC (6);
1 MBR membrane tank (2);
the bottom of the aerobic tank (1) is provided with a microporous aerator (7);
the microporous aerator (7) is connected with an air outlet of the fan (4) through a pipeline provided with an aeration electromagnetic valve (8);
an aeration purging bronchus of a membrane group device (9) in the MBR membrane tank (2) is also connected with an air outlet of the fan (4) through a pipeline provided with a membrane purging electromagnetic valve (10);
a suction pipe of a membrane group device (9) in the MBR membrane tank (2) is connected with an inlet of a self-priming pump (5) through a pipeline;
the inlet of the self-priming pump (5) is connected with the water inlet of the clean water tank (3) through a pipeline;
PLC (6) links to each other with fan (4), self priming pump (5), aeration solenoid valve (8), membrane sweep solenoid valve (10) respectively.
2. An energy-saving membrane intermittent sweeping sewage treatment system coupled with a self-priming pump is characterized by comprising an aerobic tank (1), an MBR membrane tank (2), a clean water tank (3), a fan (4), a self-priming pump (5) and a PLC (6);
a plurality of MBR membrane tanks (2) are arranged;
the bottom of the aerobic tank (1) is provided with a microporous aerator (7);
two fans (4) are arranged; the microporous aerator (7) is connected with an air outlet of one fan (4);
an aeration purging bronchus of a membrane group device (9) in the MBR membrane tank (2) is connected with an air outlet of the other fan (4) through a pipeline provided with a membrane purging electromagnetic valve (10);
a suction pipe of a membrane group device (9) in the MBR membrane tank (2) is connected with an inlet of a self-priming pump (5) through a pipeline;
the inlet of the self-priming pump (5) is connected with the water inlet of the clean water tank (3) through a pipeline;
PLC (6) links to each other with fan (4), self priming pump (5), membrane sweep solenoid valve (10) respectively.
3. The energy-saving membrane intermittent purging sewage treatment system coupled with the self-priming pump as recited in claim 1 or 2, wherein the membrane in the MBR membrane tank (2) is hollow fiber membrane.
4. The energy-saving membrane intermittent purging sewage treatment system coupled with the self-priming pump as recited in claim 1 or 2, wherein the blower (4) is a roots blower.
5. The energy-saving membrane intermittent purging sewage treatment system coupled with the self-priming pump according to claim 1 or 2, wherein the aeration electromagnetic valve (8) and the membrane purging electromagnetic valve (10) both adopt pneumatic electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120284233.4U CN215439828U (en) | 2021-02-01 | 2021-02-01 | Energy-saving membrane intermittent purging sewage treatment system coupled with self-priming pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120284233.4U CN215439828U (en) | 2021-02-01 | 2021-02-01 | Energy-saving membrane intermittent purging sewage treatment system coupled with self-priming pump |
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| CN215439828U true CN215439828U (en) | 2022-01-07 |
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