CN218146044U - Balanced and adjustable drainage device of control air weir - Google Patents
Balanced and adjustable drainage device of control air weir Download PDFInfo
- Publication number
- CN218146044U CN218146044U CN202222702434.9U CN202222702434U CN218146044U CN 218146044 U CN218146044 U CN 218146044U CN 202222702434 U CN202222702434 U CN 202222702434U CN 218146044 U CN218146044 U CN 218146044U
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- air
- weir
- reaction tank
- air weir
- sbr reaction
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 239000013589 supplement Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 238000005273 aeration Methods 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 239000010802 sludge Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model provides a balanced and adjustable drainage device of control air weir, including SBR reaction tank, SBR reaction tank upper surface middle part has seted up first water inlet, be provided with the air weir in the SBR reaction tank, be provided with the water catch bowl in the air weir, the upper left end of air weir is connected with the inlet line, the upper middle part of air weir is connected with the air release pipeline, the upper right-hand member of air weir is connected with the air supply pipeline, the rear surface is provided with pressure sensor in the water catch bowl, be provided with the sump pit below the SBR reaction tank, the left and right both ends of sump pit all are connected with the drain pipe, and the outlet of drain pipe passes SBR reaction tank lower surface and extends to in the inlet of sump pit; the utility model discloses can realize through addding the tonifying qi part to the air weir, the inside pressure value of air weir remains the constant voltage state throughout when making SBR reaction tank drainage, eliminates siphon phenomenon, and the water yield when realizing the drainage of air weir is balanced, continuous, stable and adjustable drainage.
Description
Technical Field
The utility model relates to a sewage treatment technical field, especially a balanced and adjustable drainage device of control air weir.
Background
The air weir is a drainage device which is mature and popular in application, is mostly arranged in an SBR pool of an MSBR process and an AAO-SBR process and is used for controlling the discharge of supernatant of the SBR pool. The operation modes of the SBR pool of the MSBR process and the AAO-SBR process are generally as follows: aeration → (2) precipitation → (3) circulation of water intake/discharge in three stages. The MSBR process and the AAO-SBR process are generally provided with two sets of SBR tanks which alternately operate to realize continuous water inlet and continuous water discharge of a sewage treatment system, and the aeration time + the sedimentation time = the water discharge time. When any one set of SBR tanks is in a drainage period, the other set of SBR tanks is in an aeration or sedimentation period.
The air cover of air weir immerses in the aquatic, makes the air weir form effectual water seal and avoids leaking gas, when arbitrary a set of SBR pond is in the drainage cycle, opens the air weir bleed valve, and the pressure release is released through the bleed pipeline, makes the outside formation pressure difference value in the air weir, utilizes the pressure effect to make the SBR pond supernatant realize that the supernatant is outer arranging through the inside water catch bowl of air weir water inlet inflow air weir. When any set of SBR tank is in an aeration or sedimentation period, compressed air is injected into the air weir through the air inlet valve and the air inlet pipeline by the air weir, so that the internal and external pressure values of the air weir tend to be balanced, the air weir stops draining water, and the condition that sewage overflows in the aeration or sedimentation period of the SBR tank is prevented.
Because the instantaneous flow can fluctuate from the designed mean flow to the designed mean flow during the water discharging of the air weir, the peak flow can occur during the water discharging process. When the air weir passes through bleed valve gassing pressure release drainage, the inside pressure value of air weir can progressively reduce to 0kpa, siphonage can appear at the air weir, instantaneous drainage flow is too big, a large amount of supernatants liquid is discharged to the advanced treatment workshop section outward through the air weir, instantaneous flow exceeds the design scheme allowed range, the air weir can't carry out the balanced regulation to discharge, simultaneously because instantaneous flow is too big during the air weir siphon, rivers can arouse the SBR pond to deposit the sludge blanket and float at the excessive speed, can arouse SBR pond bubble mud finally, cause very big impact to the advanced treatment workshop section of low reaches, influence sewage treatment plant and stabilize discharge up to standard.
Disclosure of Invention
In view of this, the utility model aims at providing a can realize making the inside pressure value of air weir remain the constant voltage state throughout when SBR reaction tank drainage through addding the tonifying qi part to the air weir, eliminate siphonage, the balanced just adjustable drainage device of control air weir of the water yield when realizing the drainage of air weir.
The utility model discloses a following method realizes: the utility model provides a balanced and adjustable drainage device of control air weir, includes the SBR reaction tank, first water inlet has been seted up at SBR reaction tank upper surface middle part, be provided with the air weir in the SBR reaction tank, be provided with the water catch bowl in the air weir, the left end is connected with the air inlet pipeline on the air weir, the middle part is connected with the gas release pipeline on the air weir, the right-hand member is connected with the gas supply pipeline on the air weir, the rear surface is provided with pressure sensor in the water catch bowl, SBR reaction tank below is provided with the sump pit, both ends all are connected with the drain pipe about the sump pit, just the outlet of drain pipe passes SBR reaction tank lower surface extends to in the water inlet of sump pit, the second water inlet has been seted up on the sump pit.
Furthermore, the section of the second water inlet is funnel-shaped.
Furthermore, an air inlet valve is arranged on the air inlet pipeline, an air release valve is arranged on the air release pipeline, and an air supplement valve is arranged on the air supplement pipeline.
Furthermore, the lower surface of the water collecting well is connected with a water outlet pipe.
Further, guide rail grooves are formed in the left side and the right side of the water collecting tank, drawing grooves are formed in the water collecting tank, the drawing grooves are communicated with the guide rail grooves, a filter plate matched with the second water inlet is arranged in each drawing groove, the left end and the right end of the filter plate are embedded into the guide rail grooves, and drawing handles are arranged in the middle of the upper surface of the filter plate.
Further, the bottom surface is provided with the clearance piece in the SBR reaction tank, the clearance piece includes driving motor, the bar recess has all been seted up to the side about in the SBR reaction tank, the front surface inlays in the bar recess and is equipped with driving motor, driving motor's output is connected with the screw rod, the scroll cover is equipped with the sliding block on the screw rod, controls to be connected with the U-shaped seat between the sliding block of both ends, be provided with the brush about the U-shaped seat between the montant, mud silo that gathers materials has been seted up to bottom surface front end in the SBR reaction tank, the bin outlet has been seted up at mud silo lower surface middle part.
The beneficial effects of the utility model reside in that: the utility model adds the air supplement part to the air weir, so that the inner part of the air weir can always keep a constant pressure value when the air weir drains water, the siphon phenomenon of the air weir can be eliminated, the influence of the excessive instantaneous flow caused by siphon and the sludge leakage of the SBR pool on the downstream advanced treatment section can be avoided, and the problem of the excessive siphon instantaneous flow when the air weir drains water is solved; add the tonifying qi part on the air weir, through the setting to the pressure value when the air weir stops the gassing, instantaneous flow when can effectively adjusting the air weir drainage, the pressure set value is big more, the air weir drainage instantaneous flow is little less, the pressure set value is little less, the air weir drainage instantaneous flow is big more, thereby hydraulic balance adjustment when realizing the air weir drainage, make the air weir balanced, it is continuous, stable and adjustable drainage, can effectively alleviate the hydraulic load pressure of advanced treatment workshop section, effectively ensure the steady operation of advanced treatment workshop section, ensure that sewage treatment plant stably discharge up to standard.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic view of the structure of the filter plate.
Fig. 4 is a schematic structural view of the U-shaped seat.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a balanced and adjustable drainage device of control air weir, includes SBR reaction tank 1, first water inlet 2 has been seted up at 1 upper surface middle part of SBR reaction tank, be provided with air weir 3 in the SBR reaction tank 1, be provided with water catch bowl 4 in the air weir 3, the left end is connected with air inlet pipeline 31 on the air weir 3, the middle part is connected with air release pipeline 32 on the air weir 3, the right-hand member is connected with gas supply pipeline 33 on the air weir 3, the rear surface is provided with pressure sensor 41 in the water catch bowl 4, 1 below of SBR reaction tank is provided with water catch bowl 42, both ends all are connected with drain pipe 43 about water catch bowl 4, just the outlet of drain pipe 43 passes 1 lower surface of SBR reaction tank extends to in the water inlet of water catch bowl 42, second water inlet 44 has been seted up on the water catch bowl 4.
The second water inlet 44 has a funnel-shaped cross section. Better water is introduced into the water collection tank 4.
Referring to fig. 1 and fig. 2, in an embodiment of the present invention, an air inlet valve 34 is disposed on the air inlet pipeline 31, an air release valve 35 is disposed on the air release pipeline 32, and an air release valve 36 is disposed on the air release pipeline 33. So that air is supplemented to the air weir by starting and stopping the switch of the independent air supplementing valve.
The air supply source of the air weir of the utility model is independent of the air supply source of the air weir, i.e. the air supply system of the air weir and the air supply system of the air weir can not share one air source, thus avoiding influencing the operation of the SBR reaction tank and the air weir, and supplying air to the air weir through the independent air source; the air weir air supplement pipeline is independent of the air weir air inlet pipeline, namely the air weir air supplement system and the air weir air inlet system cannot share one set of pipeline, so that the operation of the SBR reaction tank and the air weir is prevented from being influenced, and air is supplemented to the air weir through the independent air supplement pipeline; the air weir air supplement valve needs to be independent of the air weir air intake valve, namely, the air weir air supplement system and the air weir air intake system can not share one set of valve, so that the influence on the operation of the SBR reaction tank and the air weir is avoided, and the air supplement is started and stopped to the air weir through the switch of the independent air supplement valve.
The lower surface of the water collecting well 42 is connected with a water outlet pipe 45.
Referring to fig. 1, fig. 2 and fig. 3, in an embodiment of the present invention, a guide groove (not shown) is disposed on the left side and the right side of the water collecting tank 4, a drawing groove (not shown) is disposed on the water collecting tank, the drawing groove is communicated with the guide groove, a filter plate 46 is disposed in the drawing groove and is matched with the second water inlet 44, the left end and the right end of the filter plate 46 are embedded into the guide groove, and a drawing handle 47 is disposed in the middle of the upper surface of the filter plate 46. The filter plate 46 can be exchanged by the function of the pull-out handle 47 and the pull-out groove.
Please continue to refer to fig. 1, fig. 2 and fig. 4, in an embodiment of the present invention, the bottom surface in the SBR reaction tank 1 is provided with a cleaning member 5, the cleaning member 5 includes a driving motor 51, the left and right sides in the SBR reaction tank 1 have all been provided with a bar groove 52, the front surface in the bar groove 52 is embedded with the driving motor 51, the output end of the driving motor 51 is connected with a screw 53, the upper spiral sleeve of the screw 53 is provided with a sliding block 54, the left and right ends of the sliding block 54 are connected with a U-shaped seat 55, a brush 56 is provided between the left and right vertical rods of the U-shaped seat 55, the bottom surface front end in the SBR reaction tank 1 has been provided with a sludge collecting tank 57, and the middle of the lower surface of the sludge collecting tank 57 has been provided with a discharge hole 58. So that can drive screw rod 53 through driving motor 51 and rotate, screw rod 53 rotates and to realize the back-and-forth movement of sliding block 54 to drive brush 56 and carry out the back-and-forth movement, clear up the mud of bottom surface in SBR reaction tank 1, discharge in propelling movement to mud collecting chute 57.
The pressure sensor is arranged on the air weir of the utility model, so as to monitor the internal pressure value of the air weir in real time, provide accurate data support for the intelligent air supply system and ensure the stable and high-efficiency operation of the intelligent air supply system; the pressure sensor may be, but is not limited to, a high temperature melt pressure sensor PT 124G-111T.
The driving motor and the valve in the present invention are prior art, and those skilled in the art can clearly understand the driving motor and the valve, and the detailed description is not provided herein.
The driving motor and the valve are controlled by the controller, which is known to those skilled in the art, and the control method is not a protection scope of the present invention, and is not described in detail herein.
The implementation method of the adjustable drainage device for controlling the balance of the air weir comprises the following steps:
s1, respectively setting a pressure setting value when the air weir stops deflating, a pressure setting value when the air weir starts air supplementing and a pressure setting value when the air weir stops air supplementing in a PLC intelligent control system of the SBR reaction tank;
s2, when the SBR reaction tank is shifted to a drainage cycle after the sedimentation cycle is completed, opening an air weir vent valve, deflating and relieving the pressure of the air weir through an air weir vent valve pipeline, closing the air weir vent valve when the real-time pressure value of the air weir is reduced to the pressure set value when the air weir stops deflating, and maintaining constant-pressure drainage in the air weir until deflation is completed;
s3, during the continuous drainage of the SBR reaction tank, compressed air in the air weir is respectively released through a vent valve to release pressure and flows out along with water flow, the real-time pressure value of the air weir is gradually reduced, when the real-time pressure value of the air weir is reduced to the pressure set value at which the air weir starts to supplement air, an air inlet valve of an intelligent air supplement system of the air weir is opened, and the compressed air is injected into the air weir through an air supplement pipeline; and when the real-time pressure value of the air weir is increased to the pressure set value at which the air weir stops supplying air, closing the air supply valve, and finishing air supply. And the like, dynamically monitoring and adjusting, and supplementing gas in real time according to the process requirements.
And S4, setting the pressure value when the air weir stops deflating, so that the instantaneous flow of the water discharged by the air weir can be effectively adjusted, wherein the larger the pressure setting value is, the smaller the instantaneous flow of the water discharged by the air weir is, the smaller the pressure setting value is, the larger the instantaneous flow of the water discharged by the air weir is, and the phenomenon that the instantaneous flow overload water discharge occurs on the air weir is eliminated.
And S5, detecting real-time pressure values of the air weir through the pressure sensor, controlling the air weir to continuously, stably and uniformly drain water under different internal pressure value states through different settings of four pressure values such as a pressure setting value when the air weir stops deflating, a pressure setting value when the air weir starts air supply, a pressure setting value when the air weir stops air supply and the like, stabilizing the instantaneous flow of the air weir within the range of the design scheme, having small impact on a downstream deep treatment workshop section, effectively ensuring the normal and stable operation of the deep treatment workshop section, and discharging the discharged water up to the standard.
The above mentioned is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a balanced and adjustable drainage device of control air weir, includes SBR reaction tank, its characterized in that: a first water inlet has been seted up at SBR reaction tank upper surface middle part, be provided with the air weir in the SBR reaction tank, be provided with the water catch bowl in the air weir, the left end is connected with the air inlet pipeline on the air weir, the middle part is connected with the air release pipeline on the air weir, the right-hand member is connected with the gas supply pipeline on the air weir, the rear surface is provided with pressure sensor in the water catch bowl, SBR reaction tank below is provided with the sump pit, both ends all are connected with the drain pipe about the sump pit, just the outlet of drain pipe passes SBR reaction tank lower surface extends to in the water inlet of sump pit, the second water inlet has been seted up on the sump pit.
2. A device for controlling equalization of an air weir and adjustable drain as claimed in claim 1, wherein: the cross section of the second water inlet is funnel-shaped.
3. A device for controlling equalization of an air weir and adjustable drain as claimed in claim 1, wherein: the air inlet pipeline is provided with an air inlet valve, the air exhaust pipeline is provided with an air exhaust valve, and the air supply pipeline is provided with an air supply valve.
4. A controlled air weir equalization and adjustable drain as claimed in claim 1 wherein: the lower surface of the water collecting well is connected with a water outlet pipe.
5. A controlled air weir equalization and adjustable drain as claimed in claim 1 wherein: guide rail groove has all been seted up to the left and right sides in the water catch bowl, the pull groove has been seted up on the water catch bowl, just the pull groove with the guide rail groove is linked together the setting, the pull inslot be provided with second water inlet matched with filter, just both ends all imbed about the filter the guide rail inslot sets up, filter upper surface middle part is provided with the pull handle.
6. A device for controlling equalization of an air weir and adjustable drain as claimed in claim 1, wherein: the bottom surface is provided with the clearance piece in the SBR reaction tank, the clearance piece includes driving motor, the bar recess has all been seted up to the side about in the SBR reaction tank, the front surface inlays in the bar recess and is equipped with driving motor, driving motor's output is connected with the screw rod, the scroll cover is equipped with the sliding block on the screw rod, controls to be connected with the U-shaped seat between the both ends sliding block, be provided with the brush about the U-shaped seat between the montant, the bottom front end has been seted up at the SBR reaction tank and has been gathered the silo, mud gathers the silo lower surface middle part and has seted up the bin outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222702434.9U CN218146044U (en) | 2022-10-13 | 2022-10-13 | Balanced and adjustable drainage device of control air weir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222702434.9U CN218146044U (en) | 2022-10-13 | 2022-10-13 | Balanced and adjustable drainage device of control air weir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218146044U true CN218146044U (en) | 2022-12-27 |
Family
ID=84566915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222702434.9U Active CN218146044U (en) | 2022-10-13 | 2022-10-13 | Balanced and adjustable drainage device of control air weir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218146044U (en) |
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2022
- 2022-10-13 CN CN202222702434.9U patent/CN218146044U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240420 Address after: 530022, 29th Floor, Building A, Nanhu Mingdu, No. 30 Shuangyong Road, Qingxiu District, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: HUAHONG WATER GROUP CO.,LTD. Country or region after: China Address before: 532199 Linjiang Street, Xinning Town, Fusui County, Chongzuo City, Guangxi Zhuang Autonomous Region Patentee before: FUSUI HUAHONG SEWAGE TREATMENT Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |