CN216972282U - Unpowered automatic drainer - Google Patents
Unpowered automatic drainer Download PDFInfo
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- CN216972282U CN216972282U CN202220452699.5U CN202220452699U CN216972282U CN 216972282 U CN216972282 U CN 216972282U CN 202220452699 U CN202220452699 U CN 202220452699U CN 216972282 U CN216972282 U CN 216972282U
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Abstract
The utility model discloses an unpowered automatic drainer, and mainly relates to the field of sludge sedimentation drainage. Comprises a short decanting pipe, a main decanting pipe and a U-shaped water storage pipe; the top of the short decanting pipe is communicated with a main decanting pipe, one end of the main decanting pipe is communicated with one end of the U-shaped water storage pipe, and the other end of the U-shaped water storage pipe is a water outlet end; the bottom end of the decanting short pipe and/or the water outlet end of the U-shaped water storage pipe are/is provided with a filter screen. The utility model has the beneficial effects that: the aeration device is applied to a UniFedSBR tank, namely a sewage treatment tank, not only solves the problem of overflow of mixed liquid, but also can immediately enter a water inlet precipitation stage after aeration is finished, thereby effectively saving the working time and shortening the working period. And the plurality of short decanting pipes are matched with the main decanting pipe and the U-shaped water storage pipe with large pipe diameters, so that the water draining speed is further increased, and the working period is shortened. The filter screen can obtain effectual screening filtration with floater or the suspended solid in aquatic when the drainage, purifies more thoroughly.
Description
Technical Field
The utility model relates to the field of sludge sedimentation and drainage, in particular to an unpowered automatic drainer.
Background
The UniFedSBR process is a novel synchronous nitrogen and phosphorus removal process which is developed in Australia in 1998 and is successfully applied to a real-life sewage treatment plant. The UniFedSBR process essentially belongs to a Sequencing Batch Reactor (SBR) process, but is different from the traditional SBR process in the water feeding mode and the operation mode, and a typical UniFedSBR operation cycle comprises three stages of water feeding/draining, aeration and sedimentation, as shown in the attached figure 10 of the specification.
The working process of UniFedSBR is as follows: in a single SBR pool, after the aeration stage of the previous period is finished and sludge is settled for a certain time, the water inlet and drainage processes of the next period are started. Sewage slowly enters from the bottom of the SBR tank, and is directly and uniformly distributed by the water distributor arranged at the bottom and passes through the precipitated sludge layer, so that the sludge and the water are not greatly mixed mechanically. The key of the process is to realize good separation of inlet water and outlet water, so that a small inlet water ascending flow speed is adopted to prevent the influence on the quality of the outlet water on the upper layer caused by the disturbance of the sludge at the bottom of the tank. The clear water from the previous period in the sludge layer is gradually replaced by the sewage entering from the next period by adopting a drainage mode of water inlet and water outlet, and the clear water at the upper layer is discharged out of the pool by a decanter or an overflow device. Then the aerobic aeration stage and the sedimentation stage are sequentially carried out for circulation.
In the UniFedSBR process, in a water inlet/drainage stage, an anoxic environment and an anaerobic environment are formed in a sludge layer at the bottom of the SBR tank in sequence to finish denitrification and anaerobic phosphorus release, and organic matter degradation, nitrification and aerobic phosphorus absorption processes are carried out in a subsequent aeration stage, so that synchronous denitrification and phosphorus removal are realized.
The UniFedSBR is not provided with a circulating flow, does not need to add chemical agents, does not need partition plates for partitioning, can realize synchronous nitrogen and phosphorus removal in a single pool, and obtains high-quality effluent, so the UniFedSBR is considered to be a new process with great research and application prospects.
The UniFedSBR process generally employs a water discharge mode of water inlet and water outlet, after the water discharge is finished, the SBR tank is at the highest water level, and at the moment, if aeration is carried out, the mixed liquid overflows. Moreover, if water is introduced directly after the aeration is completed, the mixed liquid overflows. To prevent overflow of the mixed liquid during drainage and aeration, the following measures are often taken:
(1) after aeration is finished, firstly settling for a period of time and then feeding/discharging water;
(2) an air weir is adopted for water drainage, namely a sealing cover is fixed above a water outlet overflow weir, air is introduced during aeration to force the water level in the cover to drop, and the overflow of mixed liquid is avoided; when water is drained, air is exhausted, the water level in the cover rises, and sewage overflows.
The above measures have the following disadvantages:
(1) after aeration is finished, precipitation is needed to be carried out before water inlet/drainage, certain 'non-working time' still exists, and the working period is prolonged. (2) The air weir has complex structure and poor reliability. (3) The floating materials or suspended matters in the water can not be effectively screened and filtered when the water is drained.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an unpowered automatic drainer which is applied to a UniFedSBR (unified sequencing batch reactor), namely a sewage treatment tank, solves the problem of overflow of mixed liquid, can enter a water inlet precipitation stage immediately after aeration is finished, can effectively save the working time and shorten the working period. And the plurality of short decanting pipes are matched with the main decanting pipe and the U-shaped water storage pipe with large pipe diameters, so that the water draining speed is further increased, and the working period is shortened. The setting of filter screen can obtain effectual screening filtration with floater or the suspended solid in aquatic when the drainage, purifies more thoroughly. The device has no electric equipment, pneumatic equipment and operating components, has simple structure and reliable operation, and does not have faults; can run fully automatically according to the set water level without additional operation. The device is formed by bonding a UPVC pipe and pipe fittings, and has simple and convenient manufacture and low cost.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the unpowered automatic drainer comprises a short decanting pipe, a main decanting pipe and a U-shaped water storage pipe; the top of the short decanting pipe is communicated with a main decanting pipe, one end of the main decanting pipe is communicated with one end of a U-shaped water storage pipe, and the other end of the U-shaped water storage pipe is a water outlet end; the bottom end of the short decanting pipe and/or the water outlet end of the U-shaped water storage pipe are/is provided with a filter screen.
The water outlet ends of the U-shaped water storage pipes are provided with a plurality of water outlet ends, and each water outlet end is provided with a filter screen.
The top parts of the plurality of short decanting pipes are communicated with the main decanting pipe.
The pipe diameters of the decanting water main pipe and the U-shaped water storage pipe are larger than the pipe diameter of the decanting water short pipe.
The water outlet end of the U-shaped water storage pipe is lower than the lowest end of the short decanting pipe.
The filter screen can be dismantled and set up.
Compared with the prior art, the utility model has the beneficial effects that:
the device is applied to a UniFedSBR pool, namely a sewage treatment pool, and still adopts a drainage method of water inlet and water outlet. However, in the aeration and water inlet/sedimentation stages, the water level in the tank is lower than the highest water level, so that the problem of slurry-water mixed liquid outflow is avoided; after the sewage enters the drainage stage, due to the action of the water distributor, the water inflow ascending flow speed is small, the influence on the water quality of an upper layer due to the disturbance of sludge at the bottom of the pool is avoided, the mixed liquid of the upper layer continuously begins to be precipitated, the sludge layer is arranged below a bottom suction port of the decanting short pipe, and the precipitated sludge cannot flow outwards, so that the problem of overflow of the mixed liquid is solved.
And the sewage treatment tank enters a water inlet sedimentation simultaneous operation stage immediately after the aeration is finished, so that sedimentation is not needed first and then water is not needed, the non-working time is completely eliminated, the working period is shortened to the maximum extent, and the tank capacity utilization rate of the sewage treatment tank is improved. And the plurality of short decanting pipes are matched with the main decanting pipe and the U-shaped water storage pipe with large pipe diameters, so that the water draining speed is further increased, and the working period is shortened. The sediment of intaking moves the stage simultaneously, and floater or the suspended solid of aquatic can not deposit, and in the follow-up drainage process, the setting of filter screen can obtain effectual screening filtration with floater or the suspended solid of aquatic when the drainage, purifies more thoroughly.
The device has no electric equipment, pneumatic equipment and operating components, is simple to operate, has a simple structure, runs reliably and does not have faults; can run fully automatically according to the set water level without additional operation. The water filling ratio, the water inlet flow and the aeration time are controlled well.
The device is formed by bonding a UPVC pipe and pipe fittings, and has simple and convenient manufacture and low cost.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention.
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention.
FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 4 is a schematic structural view of a water outlet end in embodiment 4 of the present invention.
FIG. 5 is a state diagram of the aeration phase when the present invention is used in a sewage treatment tank.
FIG. 6 is a state diagram of the influent precipitation occurring simultaneously with the stage of the present invention when used in a wastewater treatment basin.
FIG. 7 is a state diagram of the critical water discharge timing of the present invention when used in a wastewater treatment tank.
FIG. 8 is a state diagram of the drainage stage of the present invention when used in a wastewater treatment basin.
FIG. 9 is a state diagram showing the state of the utility model when used in a sewage treatment tank, in which the siphon action is broken, the drainage phase is completed, and the aeration phase is preceded.
FIG. 10 is a schematic diagram of the UniFedSBR process flow.
Reference numerals shown in the drawings:
1. decanting short pipe; 2. decanting the water main pipe; 3. a U-shaped water storage pipe; 4. a water outlet end; 5. filtering with a screen; 6. a water distributor.
Detailed Description
The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Example 1:
the utility model relates to an unpowered automatic drainer, which comprises a short decanting pipe 1, a main decanting pipe 2 and a U-shaped water storage pipe 3 in the main structure; the top of the short decanting pipe 1 is communicated with a main decanting pipe 2, one end of the main decanting pipe 2 is communicated with one end of a U-shaped water storage pipe 3, and the other end of the U-shaped water storage pipe 3 is a water outlet end 4; the number of the short decanting pipes 1 is multiple, and the tops of the short decanting pipes 1 are communicated with the main decanting pipe 2. The pipe diameters of the decanting water main pipe 2 and the U-shaped water storage pipe 3 are larger than the pipe diameter of the decanting water short pipe 1. The bottom end of the short decanting pipe 1 is provided with a filter screen 5. The water outlet end 4 of the U-shaped water storage pipe 3 is lower than the lowest end of the short decanting pipe 1.
The device is applied to a UniFedSBR pool, namely a sewage treatment pool, and still adopts a drainage method of water inlet and water outlet. However, in the aeration and water inlet/sedimentation stages, the water level in the tank is lower than the highest water level, so that the problem of slurry-water mixed liquid outflow is avoided; after entering the drainage stage, because of the action of the water distributor 6, the water inlet raising flow speed is small, the influence on the upper-layer water quality caused by the disturbance of the sludge at the bottom of the tank is avoided, the upper-layer mixed liquid continuously begins to be precipitated, the sludge layer is below the bottom suction port of the short decanting pipe 1, and the precipitated sludge cannot flow out, namely the overflow problem of the mixed liquid is solved. And the sewage treatment tank enters a water inlet sedimentation simultaneous operation stage immediately after the aeration is finished, so that sedimentation is not needed first and then water is not needed, the non-working time is completely eliminated, the working period is shortened to the maximum extent, and the tank capacity utilization rate of the sewage treatment tank is improved. And a plurality of short decanting pipes 1 are matched with the main decanting pipe 2 with a large pipe diameter and the U-shaped water storage pipe 3, so that the water draining speed is further increased, and the working period is shortened. The sediment of intaking moves the stage simultaneously, and floater or the suspended solid of aquatic can not deposit, and in the follow-up drainage process, the setting of filter screen 5 can obtain effectual screening filtration with floater or the suspended solid of aquatic when the drainage, purifies more thoroughly. The device has no electric equipment, pneumatic equipment and operating components, is simple to operate, simple in structure and reliable in operation, and does not have faults; can run fully automatically according to the set water level without additional operation. The water filling ratio, the water inlet flow and the aeration time are controlled well. The device is formed by bonding a UPVC pipe and pipe fittings, and has simple and convenient manufacture and low cost.
In order to facilitate cleaning of the filter screen 5, the filter screen 5 is detachably arranged.
Example 2:
compared with the embodiment 1, in the embodiment 2, the water outlet end 4 of the U-shaped water storage pipe 3 is provided with the filter screen 5. The water outlet end 4 leaks out of the tank, so that the filter screen 5 is convenient to disassemble, clean and replace.
Example 3:
compared with the embodiment 1, in the embodiment 3, the bottom end of the decanting short pipe 1 and the water outlet end 4 of the U-shaped water storage pipe 3 are provided with the filter screens 5. The side of intaking of device all sets up filter screen 5 with play water side, and this floater or the suspended solid that just makes aquatic obtains more effective screening filtration, purifies more thoroughly.
Example 4:
compared with embodiment 2, in this embodiment 4, a plurality of water outlet ends 4 of the U-shaped water storage pipe 3 are provided, and each water outlet end 4 is provided with a filter screen 5. The plurality of short decanting pipes 1 are matched with the main decanting pipe 2 with a large pipe diameter and the U-shaped water storage pipe 3, and meanwhile, the plurality of water outlet ends 4 are also arranged, so that the water discharging speed is further accelerated, and the working period is shortened.
The using method is detailed as follows:
s1, arranging a drainer device in the sewage treatment tank, keeping the bottom suction port of the short decantation pipe 1 downward, and keeping the bottom suction port of the short decantation pipe 1 at the lowest water level height position of the sewage treatment tank; as shown in figure 5 of the specification.
S2, ensuring the water seal of the pipe section below the height of the water outlet end 4 in the U-shaped water storage pipe 3 (when the last drainage cycle is finished, the water seal of the pipe section below the height of the water outlet end 4 in the U-shaped water storage pipe 3 is generated according to the principle of a communicating vessel); as shown in figure 5 of the accompanying drawings.
S3, when the water level in the sewage treatment tank is at the lowest water level height, aerating the sewage in the sewage treatment tank, and communicating the bottom suction port of the short decanting pipe 1 with the atmosphere; as shown in figure 5 of the specification.
S4, when the aeration phase is finished, water is fed from the water distributor 6 at the bottom of the tank immediately, and the sewage treatment tank enters a precipitation phase, namely, the water feeding and precipitation are carried out synchronously;
along with the water inlet, the water level of the sewage treatment tank gradually rises, and after a suction port at the bottom of the short decanting pipe 1 is positioned below the water level, air remained in the drainer device forms an air seal; meanwhile, suspended sludge in the sewage treatment tank gradually precipitates; floating materials or suspended matters in the water cannot be precipitated;
continuing to submerge the decanting water main pipe 2 with the water inlet, but the supernatant cannot flow out of the pool through the drainer device due to the air seal effect;
the water level of the sewage treatment tank continuously rises along with the water inlet, the air pressure in the drainer device gradually rises, and the water level difference of the vertical pipe bodies on the two sides of the U-shaped water storage pipe 3 is gradually increased; as shown in figure 6 of the accompanying drawings.
S5, continuing to enter along with the water, when the water level of the sewage treatment tank reaches the height position of the highest water level line, the water pressure difference of the vertical pipe bodies at the two sides of the U-shaped water storage pipe 3 reaches the maximum, the water pressure difference between the inside of the short decanting pipe 1 and the outside of the tank begins to be larger than the air pressure in the drainer device, the air sealing effect is destroyed, and the supernatant of the sewage treatment tank begins to be discharged out of the tank through the short decanting pipe 1, the main decanting pipe 2 and the U-shaped water storage pipe 3 and enters a water discharging stage; as shown in figure 7 of the specification. In the initial stage of drainage, the sewage treatment tank is still in the water inlet stage, and the water inlet stage is finished after the water inflow reaches the designed water amount. In the drainage process, the filter screen 5 can effectively screen and filter floating objects or suspended matters in water during drainage, and purification is more thorough.
S6, as the water drainage is carried out, when the water level of the sewage treatment tank is lower than the water decanting main pipe 2, the water drainage is still continued due to the siphoning effect; as shown in figure 8 of the accompanying drawings.
S7, gradually reducing the water level in the sewage treatment tank along with the progress of drainage, exposing a bottom suction port of the decanting short pipe 1 to the atmosphere after the water level reaches the lowest water level, introducing air into a drainer device, destroying the siphoning effect, and ending the drainage stage, wherein a water storage water seal is arranged in a pipe section below the water outlet end 4 in the U-shaped water storage pipe 3 according to the principle of a communicating vessel; as shown in figure 9 of the specification.
And S8, aerating the sewage in the sewage treatment tank again, and operating the next period. As shown in figure 5 of the accompanying drawings.
In order to ensure that the water discharged at the last moment in the water discharging stage is still supernatant, the water feeding stage is ended before the water discharging stage ending step.
Claims (6)
1. Unpowered automatic drainer, its characterized in that: comprises a short decanting pipe (1), a main decanting pipe (2) and a U-shaped water storage pipe (3); the top of the short decanting pipe (1) is communicated with the main decanting pipe (2), one end of the main decanting pipe (2) is communicated with one end of the U-shaped water storage pipe (3), and the other end of the U-shaped water storage pipe (3) is a water outlet end (4);
the bottom end of the decanting short pipe (1) and/or the water outlet end (4) of the U-shaped water storage pipe (3) is/are provided with a filter screen (5).
2. The unpowered automatic drain of claim 1, wherein: the water outlet ends (4) of the U-shaped water storage pipes (3) are provided with a plurality of water outlet ends, and each water outlet end (4) is provided with a filter screen (5).
3. The unpowered automatic drainer according to claim 2, wherein: the number of the short decanting pipes (1) is multiple, and the tops of the short decanting pipes (1) are communicated with the main decanting pipe (2).
4. The unpowered automatic water drain of claim 3, wherein: the pipe diameters of the decanting water main pipe (2) and the U-shaped water storage pipe (3) are larger than the pipe diameter of the decanting water short pipe (1).
5. The unpowered automatic drain of claim 4, wherein: the water outlet end (4) of the U-shaped water storage pipe (3) is lower than the lowest end of the short decanting pipe (1).
6. The unpowered automatic water drain of claim 5, wherein: the filter screen (5) is detachably arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220452699.5U CN216972282U (en) | 2022-03-02 | 2022-03-02 | Unpowered automatic drainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220452699.5U CN216972282U (en) | 2022-03-02 | 2022-03-02 | Unpowered automatic drainer |
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| Publication Number | Publication Date |
|---|---|
| CN216972282U true CN216972282U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220452699.5U Active CN216972282U (en) | 2022-03-02 | 2022-03-02 | Unpowered automatic drainer |
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| Country | Link |
|---|---|
| CN (1) | CN216972282U (en) |
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- 2022-03-02 CN CN202220452699.5U patent/CN216972282U/en active Active
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