CN214060061U - Water distribution well and water inlet and distribution system of biochemical unit of sewage treatment plant - Google Patents
Water distribution well and water inlet and distribution system of biochemical unit of sewage treatment plant Download PDFInfo
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- CN214060061U CN214060061U CN202022340563.9U CN202022340563U CN214060061U CN 214060061 U CN214060061 U CN 214060061U CN 202022340563 U CN202022340563 U CN 202022340563U CN 214060061 U CN214060061 U CN 214060061U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 174
- 239000010865 sewage Substances 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 abstract 1
- 238000005273 aeration Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of sewage treatment, and discloses a distribution well of a biochemical unit of a sewage treatment plant, which is a concave distribution well internally provided with a plurality of distribution pipes; the starting end of the water distribution pipe is externally connected with a water inlet main channel, and the tail end of the water distribution pipe is connected with each designed water inlet area; the water distribution pipe is sequentially provided with a first manual soft sealing butterfly valve, an electromagnetic flowmeter, an electric plug valve, a double-flange loose sleeve limiting expansion joint and a second manual soft sealing butterfly valve along the water inlet direction; and a first manual soft sealing butterfly valve and a second manual soft sealing butterfly valve of the same water distribution pipe are opened and closed simultaneously to determine whether the water inlet area is designed correspondingly to the water distribution pipe. The utility model discloses an optimization of biochemical unit distribution of intaking realizes biochemical unit's developments water distribution as required, increases the water treatment flexibility.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to distribution well and water distribution system of intaking of biochemical unit of sewage treatment plant.
Background
The biochemical treatment unit of the sewage treatment plant is commonly used for the distribution of inlet water. For example: the improved A2O process is to avoid competition with phosphorus-accumulating bacteria for carbon source during denitrification of nitrate carried by return sludge, 10-30% of sewage is distributed to enter a pre-anoxic zone, and the rest 90-70% of sewage enters an anaerobic zone; according to the optimal water distribution ratio of the simulation, the multi-section multi-stage AO process simultaneously feeds water to the anaerobic zone and the three-stage anoxic zone so as to ensure the efficient utilization of a water-feeding carbon source.
In current practical engineering, there are two general methods for biochemical unit water inlet distribution. One is to adopt an attached wall type gate or a flashboard gate, and adjust the water passing section by using the opening degree of the gate so as to control the water inflow of each unit; and the other type adopts a thin-wall weir, and the water inflow of each unit is differentially distributed through the design of the length of the weir.
The first water distribution mode has poor recording performance and repeatability, depends on engineering experience of pipe transportation personnel to a great extent, and cannot quantitatively express the actual water inflow of each unit; the gate is always in a state of pressure, the screw rod is stressed for a long time, and the service life is shortened.
The second water distribution mode can theoretically determine the water inflow of each unit, but the actual water inflow of a sewage treatment plant has fluctuation of water quality and water quantity, and the actual water inflow of each unit cannot be reflected in real time on the one hand by the fixed weir length in the operation process; on the other hand, the water inflow of each unit cannot be flexibly adjusted according to the actual water quality of inlet water, and the flexibility is poor.
The existing biochemical unit water inlet distribution structure can not meet the operation requirements of sewage treatment plants on accuracy and intelligence. At present, the advanced treatment process is increased to improve the quality of the effluent of a sewage plant, and attention is paid to a biochemical unit serving as a sewage treatment core. Especially, in a large sewage treatment plant, the treatment efficiency of the whole plant is improved by optimizing the water inlet distribution of the biochemical units, so that the consumption of additional medicaments is reduced, and the operation cost is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art can not feed back each unit inflow in real time, can not allocate each unit inflow's shortcoming according to the quality of water of actually intaking in a flexible way, provide a distribution well of installing a plurality of distribution pipes, break-make and flow through coordinating each distribution pipe, realize biochemical unit and intake the optimization of distribution, can not only alleviate follow-up advanced treatment unit's load, the carbon source that can also furthest's utilization intake reduces the medicament and throws and throw, and can provide multi-mode operation mode, increase the water treatment flexibility.
The utility model discloses mainly realize through following technical scheme:
firstly, the utility model provides a distribution well of biochemical unit of sewage treatment plant.
The distribution well is a concave distribution well internally provided with a plurality of distribution pipes; the starting end of the water distribution pipe is externally connected with a water inlet main channel, and the tail end of the water distribution pipe is connected with each designed water inlet area; the water distribution pipe is sequentially provided with a first manual soft sealing butterfly valve, an electromagnetic flowmeter, an electric plug valve, a double-flange loose sleeve limiting expansion joint and a second manual soft sealing butterfly valve along the water inlet direction; and a first manual soft sealing butterfly valve and a second manual soft sealing butterfly valve of the same water distribution pipe are opened and closed simultaneously to determine whether the water inlet area is designed correspondingly to the water distribution pipe.
A water distribution well of a biochemical unit of a sewage treatment plant has a first manual soft sealing butterfly valve and a last manual soft sealing butterfly valve which are opened and closed simultaneously to determine whether water enters a correspondingly designed water inlet area or not; and one water distribution well can realize the multi-mode operation of the biochemical unit by arranging a plurality of water distribution pipes connected with the designed water inlet area.
When the two manual soft seal butterfly valves are fully opened, the electric plug valve is adjusted according to actual water inlet quality data of a sewage treatment plant, the water passing capacity of each water distribution pipe is controlled, and the electromagnetic flowmeter feeds back actually-measured water inlet flow data in real time, so that the water inlet flow proportion of each area is flexibly and accurately allocated.
Furthermore, at least one group of water distribution pipes connected with the biochemical units are arranged in one water distribution well, and the water distribution pipes are connected with the designed water inlet areas one by one.
Furthermore, the tail ends of the water distribution pipes are connected with the designed water inlet areas one by one through water inlet channels or extension pipelines.
Secondly, the utility model also provides a water distribution system of intaking of sewage treatment plant biochemical unit.
The water inlet and distribution system mainly refers to a water inlet distribution structure formed by a water distribution well and a water inlet main canal. The starting end of each water distribution pipe adopting submerged water inflow in the water distribution well is connected with the water inflow main canal; at least one group of water distribution pipes connected with the biochemical units are arranged in the water distribution well, and the water distribution pipes are connected with the designed water inlet areas one by one.
The utility model has the advantages that:
(1) the utility model provides a pair of distribution well of biochemical unit of sewage treatment plant has realized the optimization of biochemical unit distribution of intaking, can not only alleviate follow-up advanced treatment unit's load, and the carbon source that can also furthest's utilization intake reduces the medicament and throws and throw, can provide multi-mode operation mode moreover, increases the water treatment flexibility.
(2) The utility model provides a pair of water distribution system of intaking of biochemical unit of sewage treatment plant utilizes each water distribution pipe and each design intake the regional one-to-one.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a water distribution pipe in a water distribution well.
FIG. 2 is a cross-sectional view of a distribution well of a biochemical unit.
FIG. 3 is a top plan view of a distributing well of the biochemical unit.
FIG. 4 is a schematic plan view of the middle layer of the distribution well of the biochemical unit.
FIG. 5 is a schematic view of the first operating mode in the working condition of example 3.
FIG. 6 is a schematic diagram of the operation mode under the second operating condition in embodiment 3.
Wherein,
1. a first manual soft seal butterfly valve; 2. an electromagnetic flow meter; 3. an electric plug valve; 4. a double-flange loose sleeve limit expansion joint; 5. the second manual soft seal butterfly valve.
Detailed Description
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and therefore should not be considered as limitations to the scope of protection. All other technical solutions obtained by workers of ordinary skill in the art without creative efforts based on the following embodiments belong to the protection scope of the present invention.
Description of the drawings: the utility model discloses in first manual soft seal butterfly valve 1, the manual soft seal butterfly valve 5 of second all be manual soft seal butterfly valve, only adopt "first", "the second" distinguishes in order to distinguish its mounted position.
Example 1:
the embodiment provides a distributing well of a biochemical unit of a sewage treatment plant. As shown in fig. 1-4, the distribution well is a concave distribution well with a plurality of distribution pipes installed inside; the starting end of the water distribution pipe is externally connected with a water inlet main channel, and the tail end of the water distribution pipe is connected with each designed water inlet area; as shown in fig. 1, a first manual soft sealing butterfly valve 1, an electromagnetic flowmeter 2, an electric plug valve 3, a double-flange loose-sleeve limiting expansion joint 4 and a second manual soft sealing butterfly valve 5 are sequentially arranged on the water distribution pipe along the water inlet direction; the first manual soft sealing butterfly valve 1 and the second manual soft sealing butterfly valve 5 of the same water distribution pipe are opened and closed simultaneously to determine whether the water inlet area is designed correspondingly to the water distribution pipe.
A water distribution well of a biochemical unit of a sewage treatment plant has a first manual soft sealing butterfly valve and a last manual soft sealing butterfly valve which are opened and closed simultaneously to determine whether water enters a correspondingly designed water inlet area or not; the variable-mode operation area is designed to be simultaneously provided with the stirrer and the aeration disc, the area is an anoxic area when the stirrer works independently, and the area is an aerobic area when the aeration disc works independently. And one water distribution well is internally provided with a plurality of water distribution pipes connected with a designed water inlet area, and the multi-mode operation of the biochemical unit can be realized by matching the aerobic or anoxic operation working conditions of the area during design.
When the two manual soft seal butterfly valves are fully opened, the electric plug valve 3 is adjusted according to actual water inlet quality data of a sewage treatment plant, the water passing capacity of each water distribution pipe is controlled, and the electromagnetic flowmeter 2 feeds back actually-measured water inlet flow data in real time, so that the water inlet flow proportion of each area is flexibly and accurately allocated.
By the mode, operators can quickly, flexibly and accurately optimize the water inlet proportion of each area of the biochemical unit according to the water inlet condition of the sewage treatment plant, so that the treatment capacity is improved, and the load of a subsequent advanced treatment unit is reduced; meanwhile, the carbon source of inlet water is utilized to the maximum extent, the adding amount of the medicament is reduced, and the operation cost is effectively controlled; in addition, the combination adjustment of multiple water inlet channels provides a multi-mode operation mode, and the flexibility of water treatment is increased.
Example 2:
the present embodiment is described in detail with reference to an actual application scenario based on embodiment 1.
The design scale of the sewage treatment plant with the following formula is 16.0 ten thousand m/d, and the total coefficient of variation is 1.3. The biochemical unit of the plant adopts a multi-stage AO process, one unit is divided into four groups, and single-group water inlet peak flow qmax =4 ten thousand m cultivation/dsx 1.3=5.2 ten thousand m cultivation/d.
Under the condition of designing the quality of inlet water, WEST software is taken as a platform, an international water cooperation ASM series model is taken as a basis, and a simulation model is established for the process scheme, so that the optimal water distribution ratio of the anaerobic zone and each anoxic zone is 35 percent, 25 percent and 15 percent respectively. The pipe diameters of the anaerobic zone and each stage of anoxic zone water distribution pipes of the single group of biochemical units are respectively 450mm, 400mm and 350mm through hydraulic calculation.
As shown in fig. 3-4, two biochemical units, which are respectively designated as a # 1 biochemical unit and a # 2 biochemical unit, are installed in an underground sewage plant; one group of biochemical units corresponds to four water distribution pipes.
The water distribution pipe in the water distribution well is positioned on the right side of the figure and is respectively as follows from top to bottom:
a water distribution pipe DN400 of the No. 2 anoxic zone A communicated with the water inlet channel of the No. 2 anoxic zone A,
A water distribution pipe DN400 of the No. 2 anoxic zone B communicated with the water inlet channel of the No. 2 anoxic zone B,
A water distribution pipe DN350 of the No. 2 anoxic zone C communicated with the water inlet channel of the No. 2 anoxic zone C,
A No. 2 anaerobic zone water distribution pipe DN450 directly communicated with the anaerobic zone,
A No. 1 anaerobic zone water distribution pipe DN450 directly communicated with the anaerobic zone,
A water distribution pipe DN400 of the No. 1 anoxic zone C communicated with the water inlet channel of the No. 1 anoxic zone C,
A water distribution pipe DN400 of the No. 1 anoxic zone B communicated with the water inlet channel of the No. 1 anoxic zone B,
And a water distribution pipe DN350 of the No. 1 anoxic zone A communicated with the water inlet channel of the No. 1 anoxic zone A.
The manual soft sealing butterfly valve, the electromagnetic flow meter 2, the electric plug valve 3 and the double-flange loose-sleeve limiting expansion joint 4 which are arranged on each water distribution pipe are consistent in size with the water distribution pipe.
Furthermore, the models of the manual soft sealing butterfly valves are DN450 respectively, and PN =1.0 MPa; DN400, PN =1.0 MPa; DN400, PN =1.0 MPa; DN350, PN =1.0 MPa.
The models of the electromagnetic flowmeters 2 are DN450 and N =0.02kW respectively; DN400, N =0.02 kW; DN400, N =0.02 kW; DN350, N =0.02 kW.
The models of the electric plug valve 3 are DN450, PN =1.0MPa and N =0.37kW respectively; DN400, PN =1.0MPa, N =0.37 kW; DN400, PN =1.0MPa, N =0.37 kW; DN350, PN =1.0MPa, N =0.37 kW.
The models of the double-flange loose-sleeve limiting expansion joints 4 are DN450 respectively, and PN =1.0 MPa; DN400, PN =1.0 MPa; DN400, PN =1.0 MPa; DN350, PN =1.0 MPa.
Considering that the actual inlet water quality is fluctuated, in order to increase the flexibility and the accuracy of operation and allocation, one inlet well is arranged in each two groups of biochemical units, and the total number of the biochemical units is two. The distribution well is a concave distribution well internally provided with a plurality of distribution pipes; the starting end of the water distribution pipe is externally connected with a water inlet main channel, and the tail end of the water distribution pipe is connected with each designed water inlet area; the water distribution pipe is sequentially provided with a first manual soft sealing butterfly valve 1, an electromagnetic flowmeter 2, an electric plug valve 3, a double-flange loose sleeve limiting expansion joint 4 and a second manual soft sealing butterfly valve 5 along the water inlet direction.
The simultaneous opening and closing of the first and last manual soft sealing butterfly valves determines whether water enters the area or not, so that the multi-mode operation of the biochemical unit is realized. After the manual soft seal butterfly valve is fully opened, the electric plug valve 3 is adjusted according to the actual water inlet quality condition of a sewage plant, the water passing capacity of each water distribution pipe is controlled, and the electromagnetic flow meter 2 feeds back actually-measured water inlet flow data in real time, so that the water inlet flow proportion of each area is flexibly and accurately allocated.
Example 3:
this example specifically illustrates a multi-mode operation of an influent distribution system of a biochemical unit of a sewage treatment plant based on examples 1 and 2.
Under the condition that the stirrer and the aeration disc are arranged in the aerobic zone B and the anoxic zone B simultaneously:
condition one (four-stage AO): all the manual soft sealing butterfly valves of the four water distribution pipes are opened, the aeration disc of the aerobic zone B is operated, the stirrer is not operated, the aeration disc of the anoxic zone B is not operated, and the stirrer is operated, as shown in figure 5, the whole plant operates according to the modes of anaerobic, aerobic, anoxic and aerobic;
working condition two (three AO): and (3) closing a water inlet valve of the anoxic zone B, feeding water at three points, enabling an aeration disc of the aerobic zone B to be out of operation, enabling the stirrer to be operated, enabling an aeration disc of the anoxic zone B to be operated, and enabling the stirrer to be out of operation, and enabling the whole plant to operate according to the modes of anaerobic operation, aerobic operation, anoxic operation and aerobic operation as shown in figure 6.
Other parts of this embodiment are the same as those of embodiment 1, and thus are not described again.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (6)
1. The utility model provides a distributing well of biochemical unit of sewage treatment plant which characterized in that: the distribution well is a concave distribution well internally provided with a plurality of distribution pipes; the starting end of the water distribution pipe is externally connected with a water inlet main channel, and the tail end of the water distribution pipe is connected with each designed water inlet area; the water distribution pipe is sequentially provided with a first manual soft sealing butterfly valve (1), an electromagnetic flowmeter (2), an electric plug valve (3), a double-flange loose-sleeve limiting expansion joint (4) and a second manual soft sealing butterfly valve (5) along the water inlet direction;
a first manual soft sealing butterfly valve (1) and a second manual soft sealing butterfly valve (5) of the same water distribution pipe are opened and closed simultaneously to determine whether water enters a water inlet area designed correspondingly to the water distribution pipe.
2. The distribution well of biochemical units of a sewage treatment plant according to claim 1, characterized in that: at least one group of water distribution pipes connected with the biochemical units are arranged in one water distribution well, and the water distribution pipes are connected with the designed water inlet areas one by one.
3. The distribution well of biochemical units of a sewage treatment plant according to claim 1, characterized in that: the water distribution pipes are connected with the designed water inlet areas in a one-to-one correspondence mode.
4. The distribution well of biochemical units of a sewage treatment plant according to claim 3, characterized in that: the tail end of the water distribution pipe is connected with a designed water inlet area through a water inlet channel.
5. The distribution well of biochemical units of a sewage treatment plant according to claim 3, characterized in that: the tail end of the water distribution pipe is connected with a designed water inlet area through an extension pipe.
6. The utility model provides a biochemical unit's of sewage treatment plant distribution system that intakes, includes distribution well and water inlet main canal, its characterized in that: a distribution well as claimed in any one of claims 1 to 5, wherein the starting end of each distribution pipe for submerged inflow is connected with the main canal for inflow; at least one group of water distribution pipes connected with the biochemical units are arranged in the water distribution well, and the water distribution pipes are connected with the designed water inlet areas one by one.
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| CN202022340563.9U CN214060061U (en) | 2020-10-20 | 2020-10-20 | Water distribution well and water inlet and distribution system of biochemical unit of sewage treatment plant |
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| CN202022340563.9U CN214060061U (en) | 2020-10-20 | 2020-10-20 | Water distribution well and water inlet and distribution system of biochemical unit of sewage treatment plant |
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