CN109999540B - Method and device for dissipating energy of pressure flow and intercepting suspended matters - Google Patents
Method and device for dissipating energy of pressure flow and intercepting suspended matters Download PDFInfo
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- CN109999540B CN109999540B CN201910098384.8A CN201910098384A CN109999540B CN 109999540 B CN109999540 B CN 109999540B CN 201910098384 A CN201910098384 A CN 201910098384A CN 109999540 B CN109999540 B CN 109999540B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 208
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 84
- 238000004062 sedimentation Methods 0.000 claims abstract description 40
- 238000001556 precipitation Methods 0.000 claims abstract description 32
- 239000011148 porous material Substances 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims description 15
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 9
- 238000007599 discharging Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydraulic Turbines (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a method and a device for dissipating energy of pressure flow and intercepting suspended matters. The method comprises the following steps: the water flow enters the energy dissipation and suspended matter interception facility through a water inlet pipe (pressure pipe); the water outlet of the water inlet pipe is subjected to energy dissipation through an energy dissipation runner; the energy-dissipating water passes through the partition wall and enters the suspended matter precipitation area through the well communication pore canal; carrying out suspended matter precipitation on water flow in a suspended matter precipitation area, and layering muddy water; the upper clean water of the suspended matter sedimentation area is discharged through a water outlet pipe, and the lower sludge is discharged at regular intervals. The method can eliminate the energy of the pressure flow, effectively cut off suspended matters in the water body after the efficiency, and avoid the problem of the subsequent pipeline sedimentation and blockage.
Description
Technical Field
The invention belongs to the technical field of water supply and drainage, and particularly relates to a method and a device for dissipating energy by pressure flow and intercepting suspended matters.
Background
The water delivery is usually carried out in two ways: pressure delivery and gravity delivery. In the water flow conveying process, water flow energy is usually eliminated due to the change of a conveying mode or the release of the tail end of water flow, so that the water body receiving structure is prevented from being damaged due to overlarge water flow energy.
In the gravity flow water delivery mode, the water potential energy difference is overlarge due to the large difference in height between the upstream and the downstream of the water delivery channel, and a gravity type energy dissipation well is required to be arranged in the middle. Gravity energy dissipation wells have tended to mature and are specified and described in detail by related standards, specifications and books (outdoor drainage design Specification (GB 50014-2006), "water pollution control engineering upper books, zhou Qi, etc.). Liu Huanfang et al improve the traditional gravity type energy dissipation well, add the secondary energy dissipation advection steady voltage well behind the deep drum energy dissipation well, can use continuously and guarantee that the water outlet is equal with the inlet tube flow, reduce the many orifice delivery ports in the pipeline well space and carry out the secondary advection steady voltage energy dissipation simultaneously (the invention patent: improved deep drum energy dissipation well, publication number CN 102900053A). Zhang Xianzhong et al design an ultra-deep regulation pipe initial stage rainwater inflow energy dissipation well, this energy dissipation well simple structure, convenient, can implement, can have fine energy dissipation effect to rainwater etc. that get into the well body simultaneously, very big alleviateed the impact of rainwater to well body lower part and regulation pipe. (inventive patent: ultra-deep regulating pipe initial rainwater inflow energy dissipation well, publication number CN 102808449A). However, there is almost technical gap in terms of pressure flow energy dissipation, and especially in terms of pipeline fouling problems caused by the tendency of water body suspended substances to stably sink after pressure flow energy is reduced.
In order to realize pressure flow energy dissipation and solve the problem of pipeline siltation after energy reduction, a method which is advanced and feasible in technology, economical and reasonable in pressure flow energy dissipation and suspended matter interception is necessary.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks, an object of the present invention is to provide a method for eliminating pressure flow energy and effectively intercepting suspended matters in a water body after the efficiency of intercepting the suspended matters.
In order to achieve the above purpose, the method for dissipating energy of pressure flow and intercepting suspended matters of the invention comprises the following steps: the water outlet of the water inlet pipe is subjected to energy dissipation through an energy dissipation runner;
the water after energy dissipation enters a suspended matter sedimentation area through a well communication pore canal;
carrying out suspended matter precipitation on water flow in a suspended matter precipitation area, and layering muddy water;
the upper clean water of the suspended matter sedimentation zone is discharged through an upper water outlet pipe, and the lower sludge is discharged through a lower water outlet pipe at regular intervals.
Preferably, the included angle alpha between the water inlet direction of the water inlet pipe and the horizontal direction is less than or equal to 15 degrees; the inner diameter d of the water inlet pipe is more than or equal to 100mm and less than or equal to 2000mm; the flow rate of the water inlet is more than or equal to 0.5m/s and less than or equal to 5.0m/s.
Preferably, the water outlet of the water inlet pipe is more than or equal to 0.5m and less than or equal to 1.5m from the starting point of the energy dissipation flow channel (2); energy dissipation flow channel radius R= (0.5-2.5) ·d·v 2 R is more than or equal to d; wherein d is the inner diameter of the water inlet pipe.
Preferably, the communicating duct is rectangular, and the flow cross-section area S is more than or equal to 0.5 pi.d 2 The method comprises the steps of carrying out a first treatment on the surface of the Or when the communicating pore canal is circular, the pore canal diameter D= (1.4-2) D; wherein d is the inner diameter of the water inlet pipe.
Preferably, the effective residence time t of the suspension precipitation zone (5) is not less than 2 minutes.
Preferably, the water outlet pipe adopts gravity to flow out water, and the inner diameter d of the water outlet pipe 1 Not less than 2.5d and d 1 The gradient is more than or equal to 300mm, i is more than or equal to 1 per mill and less than or equal to 10 per mill.
To achieve the above object, the present invention provides a pressure flow energy dissipating and suspended matter intercepting device, comprising: an energy dissipation runner area with a water inlet pipe; a suspended matter sedimentation zone having two water outlet pipes; a communication pore canal is arranged between the energy dissipation flow channel region and the suspended matter sedimentation region; one water outlet pipe of the suspended matter sedimentation zone is arranged at the upper section or the middle-upper section of the side wall of the suspended matter sedimentation zone, and the other water outlet pipe is arranged at the middle-lower section or the lower section of the side wall of the suspended matter sedimentation zone.
Compared with the prior art, the invention has the outstanding advantages that:
(1) The technical blank of pressure flow energy dissipation is filled, the pressure flow energy can be effectively eliminated economically, and damage to a receiving structure caused by excessive water energy is avoided.
(2) The interception of suspended matters in the water body after energy dissipation is realized, and the problem of subsequent pipeline siltation is solved.
Drawings
Fig. 1 is a schematic plan view of an embodiment of the present invention.
Fig. 2 is an elevation schematic of fig. 1.
Detailed Description
The invention will now be further described with reference to fig. 1, 2 and implementations.
Example 1
In the embodiment 1, the pressure water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=15° between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=2000 mm of the pipe, and the water inlet flow velocity v=5.0 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=1.5m of the energy dissipation flow channel (2), and the radius R=2.5.d.v of the energy dissipation flow channel (2) 2 I.e. r=125 m. After the energy dissipation of the effluent of the water inlet pipe (1) is carried out through the energy dissipation flow channel (2), the effluent passes through the partition wall (3) through the well communication pore channel (4) and enters the suspended matter sedimentation zone (5). The communicating duct (4) is rectangular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=6.28 m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=2 min of the suspended matter precipitation area (5) is used for realizing mud water layering. The clear water on the upper layer of the suspended matter sedimentation zone (5) is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =2.5d=5m, slope i=10%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Example 2
In the embodiment 2, the pressure water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=1 DEG between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=100 mm, and the water inlet flow velocity v=0.5 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=0.5m of the energy dissipation flow channel (2), and the radius R=0.5.d.v of the energy dissipation flow channel (2) 2 And R is ≡2d, i.e. r=0.2m. After the energy dissipation of the effluent of the water inlet pipe (1) is carried out through the energy dissipation flow channel (2), the effluent passes through the partition wall (3) through the well communication pore channel (4) and enters the suspended matter sedimentation zone (5). The communicating duct (4) is rectangular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=0.157 m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=5 min of the suspended matter precipitation area (5) is used for realizing mud water layering. The clear water on the upper layer of the suspended matter sedimentation zone (5) is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =300 mm, slope i=1%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Example 3
In the embodiment 3, the pressure water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=10 DEG between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=1000 mm, and the water inlet flow velocity v=2.5 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=1.0m of the energy dissipation flow channel (2), and the radius R=2.5.d.v of the energy dissipation flow channel (2) 2 I.e. r=15.625 m. After the energy dissipation of the effluent of the water inlet pipe (1) is carried out through the energy dissipation flow channel (2), the effluent passes through the partition wall (3) through the well communication pore channel (4) and enters the suspended matter sedimentation zone (5). The communicating duct (4) is circular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=1.57 m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=3 min of the suspended matter precipitation area (5) is used for realizing mud water layering. The clear water on the upper layer of the suspended matter sedimentation zone (5) is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =2.5d=2.5 m, slope i=3%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Example 4
In the embodiment 4, the pressurized water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=7 DEG between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=1200 mm, and the water inlet flow velocity v=1.2 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=0.9m of the energy dissipation flow channel (2), and the radius R=2.5.d.v of the energy dissipation flow channel (2) 2 I.e. r=4.32 m. After the energy dissipation of the effluent of the water inlet pipe (1) is carried out through the energy dissipation flow channel (2), the effluent passes through the partition wall (3) through the well communication pore channel (4) and enters the suspended matter sedimentation zone (5). The communicating duct (4) is circular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=2.26 m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=3 min of the suspended matter precipitation area (5) is used for realizing mud water layering. On the suspended matter sedimentation zone (5)The layer clear water is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =2.5d=3m, slope i=5%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Example 5
In the example 5, the pressure water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=11° between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=300 mm of the pipe, and the water inlet flow velocity v=1.1 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=1.2m of the energy dissipation flow channel (2), and the radius R=2.5.d.v of the energy dissipation flow channel (2) 2 I.e. r=0.91 m. After the energy dissipation of the effluent of the water inlet pipe (1) is carried out through the energy dissipation flow channel (2), the effluent passes through the partition wall (3) through the well communication pore channel (4) and enters the suspended matter sedimentation zone (5). The communicating duct (4) is rectangular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=0.14m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=10 min of the suspended matter precipitation area (5) is used for realizing mud water layering. The clear water on the upper layer of the suspended matter sedimentation zone (5) is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =2.5d=0.75 m, slope i=2%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Example 6
In the embodiment 6, the pressurized water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=2° between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=500 mm, and the water inlet flow velocity v=3 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=1.1m of the energy dissipation flow channel (2), and the radius R=2.5.d.v of the energy dissipation flow channel (2) 2 I.e. r=11.25 m. After the energy dissipation of the effluent of the water inlet pipe (1) is carried out through the energy dissipation flow channel (2), the effluent passes through the partition wall (3) through the well communication pore channel (4) and enters the suspended matter sedimentation zone (5). The communicating duct (4) is rectangular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=0.39m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=4 min of the suspended matter precipitation area (5) is used for realizing mud water layering. The clear water on the upper layer of the suspended matter sedimentation zone (5) is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =2.5d=1.25 m, slope i=9%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Example 7
In the example 7, the pressure water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=2° between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=1500 mm, and the water inlet flow velocity v=0.6 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=0.6m of the energy dissipation flow channel (2), and the radius R=2.5.d.v of the energy dissipation flow channel (2) 2 And R is ≡d, i.e. r=1.5m. After the energy dissipation of the effluent of the water inlet pipe (1) is carried out through the energy dissipation flow channel (2), the effluent passes through the partition wall (3) through the well communication pore channel (4) and enters the suspended matter sedimentation zone (5). The communicating duct (4) is circular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=3.53 m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=8min of the suspended matter precipitation area (5) is used for realizing mud water layering. The clear water on the upper layer of the suspended matter sedimentation zone (5) is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =2.5d=3.75 m, slope i=6%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Example 8
In the example 8, the pressure water flow enters the energy dissipation and suspended matter interception facility through the water inlet pipe (1), the included angle alpha=7° between the water inlet direction of the water inlet pipe (1) and the horizontal direction, the inner diameter d=200 mm, and the water inlet flow velocity v=0.9 m/s; the water outlet of the water inlet pipe (1) is separated from the starting point l=0.9m of the energy dissipation flow channel (2), and the radius R=2.5.d.v of the energy dissipation flow channel (2) 2 I.e. r=0.405 m. After the water discharged from the water inlet pipe (1) is subjected to energy dissipation through the energy dissipation flow channel (2),the water flows through the well communication pore canal (4) and passes through the partition wall (3) to enter the suspended matter sedimentation area (5). The communicating duct (4) is rectangular, and the flow cross-section area S=0.5.pi.d 2 I.e. s=0.063 m 2 . And (3) carrying out suspended matter precipitation on the water body in a suspended matter precipitation area (5), wherein the effective residence time t=5 min of the suspended matter precipitation area (5) is used for realizing mud water layering. The clear water on the upper layer of the suspended matter sedimentation zone (5) is discharged through a water outlet pipe (6), the water outlet pipe (6) adopts gravity to discharge water, and the inner diameter d of the water outlet pipe 1 =2.5d=0.5 m, slope i=2%o. And discharging the lower sludge.
After the pressure flows through the energy dissipation system to dissipate energy, the energy is reduced, suspended matters in water are effectively intercepted, and no sedimentation occurs in the subsequent pipeline.
Claims (6)
1. A method for dissipating energy from a pressure stream and intercepting suspended matter, said method comprising the steps of: the water outlet of the water inlet pipe is subjected to energy dissipation through an energy dissipation runner;
the water after energy dissipation enters a suspended matter sedimentation area through a well communication pore canal;
carrying out suspended matter precipitation on water flow in a suspended matter precipitation area, and layering muddy water;
the upper clean water of the suspended matter sedimentation zone is discharged through an upper water outlet pipe, and the lower sludge is discharged through a lower water outlet pipe at regular intervals;
the water inlet direction of the water inlet pipe forms an included angle with the horizontal directionαLess than or equal to 15 degrees; the inner diameter of the water inlet pipe is less than or equal to 100mmdLess than or equal to 2000mm; the flow rate of inflow water is less than or equal to 0.5m/sv≤5.0m/s；
The distance between the water outlet of the water inlet pipe and the starting point of the energy dissipation flow channel is less than or equal to 0.5mlLess than or equal to 1.5m; energy dissipation runner radiusR=（0.5~2.5）·d·v 2 And is also provided withR≥dThe method comprises the steps of carrying out a first treatment on the surface of the Wherein,dis the inner diameter of the water inlet pipe.
2. The method for dissipating energy of pressure flow and intercepting suspended matter according to claim 1, wherein said communicating duct is rectangular in shape and has a flow cross-sectional areaS≥0.5·π·d 2 。
3. The method for dissipating energy of pressure flow and intercepting suspended matter according to claim 1, wherein when said communicating duct is circular, the diameter of said duct isD=（1.4~2）dThe method comprises the steps of carrying out a first treatment on the surface of the Wherein,dis the inner diameter of the water inlet pipe.
4. A method of pressure flow energy dissipation and suspended matter interception as recited in claim 1, wherein the effective residence time of the suspended matter settling zonet≥2min。
5. The method for dissipating energy by pressure flow and intercepting suspended matters according to claim 1, wherein the water outlet pipe adopts gravity outflow water, and the inner diameter of the water outlet piped 1 ≥2.5dAnd is also provided withd 1 More than or equal to 300mm, and the gradient is less than or equal to 1 per milli≤10‰。
6. A pressure flow energy dissipating and suspended matter shutoff device, comprising: an energy dissipation runner area with a water inlet pipe; a suspended matter sedimentation zone having two water outlet pipes; a communication pore canal is arranged between the energy dissipation flow channel region and the suspended matter sedimentation region; one water outlet pipe of the suspended matter sedimentation zone is arranged at the upper section or the middle-upper section of the side wall of the suspended matter sedimentation zone, and the other water outlet pipe is arranged at the middle-lower section or the lower section of the side wall of the suspended matter sedimentation zone; the water inlet direction of the water inlet pipe forms an included angle with the horizontal directionαLess than or equal to 15 degrees; the inner diameter of the water inlet pipe is less than or equal to 100mmdLess than or equal to 2000mm; the flow rate of inflow water is less than or equal to 0.5m/sv≤5.0m/s；
The distance between the water outlet of the water inlet pipe and the starting point of the energy dissipation flow channel is less than or equal to 0.5mlLess than or equal to 1.5m; energy dissipation runner radiusR=（0.5~2.5）·d·v 2 And is also provided withR≥dThe method comprises the steps of carrying out a first treatment on the surface of the Wherein,dis the inner diameter of the water inlet pipe.
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| CN201910098384.8A CN109999540B (en) | 2019-01-31 | 2019-01-31 | Method and device for dissipating energy of pressure flow and intercepting suspended matters |
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| CN201910098384.8A CN109999540B (en) | 2019-01-31 | 2019-01-31 | Method and device for dissipating energy of pressure flow and intercepting suspended matters |
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| CN109999540B true CN109999540B (en) | 2024-02-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4202778A (en) * | 1977-10-31 | 1980-05-13 | Ballast-Nedam Groep N.V. | Separating device |
| CN2317229Y (en) * | 1998-03-26 | 1999-05-05 | 北京科技大学 | Settling tank for sewage purifying treatment process |
| CN102145232A (en) * | 2010-02-04 | 2011-08-10 | 江苏凌志环保有限公司 | Water inlet device of sedimentation tank |
| CN209900777U (en) * | 2019-01-31 | 2020-01-07 | 中冶华天工程技术有限公司 | Pressure flow energy dissipation and suspended matter intercepting device |
-
2019
- 2019-01-31 CN CN201910098384.8A patent/CN109999540B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4202778A (en) * | 1977-10-31 | 1980-05-13 | Ballast-Nedam Groep N.V. | Separating device |
| CN2317229Y (en) * | 1998-03-26 | 1999-05-05 | 北京科技大学 | Settling tank for sewage purifying treatment process |
| CN102145232A (en) * | 2010-02-04 | 2011-08-10 | 江苏凌志环保有限公司 | Water inlet device of sedimentation tank |
| CN209900777U (en) * | 2019-01-31 | 2020-01-07 | 中冶华天工程技术有限公司 | Pressure flow energy dissipation and suspended matter intercepting device |
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| CN109999540A (en) | 2019-07-12 |
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