CN115233803B - Rectifying structure for improving flow of water outlet box culvert of rainwater pump station - Google Patents
Rectifying structure for improving flow of water outlet box culvert of rainwater pump station Download PDFInfo
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- CN115233803B CN115233803B CN202210985432.7A CN202210985432A CN115233803B CN 115233803 B CN115233803 B CN 115233803B CN 202210985432 A CN202210985432 A CN 202210985432A CN 115233803 B CN115233803 B CN 115233803B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 436
- 239000012535 impurity Substances 0.000 claims abstract description 96
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 30
- 230000001788 irregular Effects 0.000 claims description 24
- 238000007790 scraping Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 239000010865 sewage Substances 0.000 claims description 11
- 238000011282 treatment Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000009825 accumulation Methods 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/20—Measuring flow in sewer systems
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of municipal rainwater pump station engineering, in particular to a rectifying structure for improving the flow of a culvert of a water outlet tank of a rainwater pump station, which comprises a water inlet unit, a water storage unit and a drainage unit, wherein the water inlet unit is vertically arranged on the side wall of the water storage unit and is used for circulating rainwater to the water storage unit; the water storage unit comprises a water storage tank which is of a vertical cylindrical structure, and a cleaning unit is arranged in the water storage tank; the water inlet unit comprises a water inlet box culvert, the water inlet box culvert is provided with a plurality of water inlet box culverts which are vertically arranged on the side wall of the water storage unit, the water inlet box culverts are tangentially communicated to the water storage unit, the water inlet box culverts close to the upper part of the top of the water storage unit are obliquely arranged, and the water inlet box culverts close to the bottom of the water storage unit are horizontally arranged; through the cooperation of tank and water inlet box culvert, make the rainwater form stable directional vortex form rivers in the tank, draw impurity through vortex form rivers simultaneously and assemble vortex form rivers central point position.
Description
Technical Field
The invention relates to the technical field of municipal rainwater pump station engineering, in particular to a rectifying structure for improving the flow of a water outlet box culvert of a rainwater pump station.
Background
In cities with imperfect drainage facilities, rainwater collected in low-lying areas is not discharged in time, so that the situation of waterlogging occurs in the cities, the rainwater pump station can enable the rainwater collected in the low-lying areas in the cities to flow into the rainwater pump station through a ground sewer outlet under the action of gravity, and the rainwater pump station is difficult to construct according to the standard of design specifications when being constructed due to the influence of surrounding buildings, urban planning and other factors in the construction process, so that the rainwater can generate vortex, backflow and other irregular water flows when entering the rainwater pump station; the rainwater pump station mainly comprises a water inlet box culvert for circulating and collecting rainwater, a water collecting tank for receiving the collected rainwater, a drainage pump for draining the collected rainwater and a drainage pipe;
According to the flow state analysis of box culvert and rectification measure research of urban rainwater pumping station in the forty-nine rolls in the fifth period of the hydraulic report published in 5 of 2018, pages 600 to 601 (Zhang Rui, xu Hui, chenling, feng Jiangang, zhou Chuntian and Wang Xiaosheng), when rainwater enters obliquely, the rainwater is caused to be spread out convexly because of being round pipes, so that the rainwater cannot be spread fully when entering the box/pipe culvert, and the rainwater flow in the water inlet box/pipe culvert is caused to be split unevenly.
Through searching, the inventor also finds that the rectifying device disclosed in the Chinese patent CN106836456B (publication day: 2019.2.12) for improving the flow distribution uniformity of the water outlet box culvert of the rainwater pump station is characterized in that a support column and a cross beam which are vertically intersected and in a T-shaped structure are arranged in a water outlet well, the support column is arranged in the middle position of the water outlet pipe orifices of two water pumps, and the cross beam is opposite to the water outlet pipe orifices of the water pumps, so that the rainwater entering and exiting the water outlet well is effectively homogenized, but the impact force of the rainwater flowing in the water inlet box culvert cannot be slowed down, the rainwater flowing in the water inlet box culvert and the rainwater standing in the water tank are mutually impacted, so that the rainwater is unstable when entering the water tank, and irregular eddies are generated due to the impact.
The inventor also finds that in the search, a combined vortex control facility of a water inflow field of a pump station disclosed in Chinese patent CN105909566B (publication day: 2019.7.2) is provided, wherein the facility sequentially and vertically sets a plurality of main guide walls, a plurality of auxiliary guide walls and a plurality of partition walls on a bottom plate of the facility from the front end to the rear end through a water pool, a water suction horn and a water pump are arranged at the rear end of the water pool, water flows through the plurality of main guide walls, the plurality of auxiliary guide walls and the plurality of partition walls in sequence, then enters a plurality of water suction horn pipes, so that irregular vortex water flow and backflow are eliminated, and the stability of the water flow is improved; but does not allow the water flow to split evenly while flowing.
The existing rainwater pump station still has some defects in the construction and use process, and the concrete summary is as follows:
1. In the existing rainwater pump station, after the rainwater passes through a gate well, due to the influence of surrounding buildings, the rainwater flows into a water inlet box culvert in a lateral direction, namely, the inclined water inlet box/pipe culvert flows in, and when the rainwater enters the gate well and the water inlet box/pipe culvert, the inclined water inlet box/pipe culvert is represented as insufficient diffusion of main flow concentration and uneven rainwater diversion of each box/pipe culvert;
The rainwater produces gravitational potential energy when entering the rainwater pump station at the subsurface water gap through the action of gravity to in-process gravitational potential energy that gets into converts kinetic energy, and the kinetic energy that the rainwater carried also becomes great when rainwater volume of getting into is big correspondingly, and the rainwater that flows contacts the rainwater of standing in the catch basin to the catch basin when getting into the catch basin of rainwater pump station, and the too big rainwater that leads to producing great impact, and the rainwater is produced when striking in getting into the catch basin and is not guided, thereby causes the pond in the rainwater pump station because striking produces irregular vortex and backward flow and rainwater rivers unstable when getting into the pond.
2. In the existing rainwater pump station, the grid is used for blocking larger solid impurities in rainwater, and some tiny impurities are still mixed in the rainwater, so that a large amount of impurities are contained when the rainwater pump station discharges the rainwater, and a drainage pipeline is blocked by a large amount of impurities.
In view of the above, the invention provides a rectifying structure for improving the flow of the rainwater pump station water outlet box culvert, which can uniformly split rainwater in the water inlet box culvert, slow down the impact force of the rainwater when the rainwater enters a water tank, and can save energy and separate and filter impurities.
Disclosure of Invention
In order to solve the problems, the invention provides a rectifying structure for improving the flow of the outlet box culvert of the rainwater pump station, which is used for solving the problems that the flow of the inlet box/pipe culvert of the outlet box culvert of the existing rainwater pump station is uneven, the impact force is overlarge, so that the rainwater flow is unstable, irregular vortex is generated and the rainwater is polluted by fine impurities, wherein the flow of the rainwater in the inlet box culvert is uniform, the impact force of the rainwater when the rainwater enters a pool is slowed down, and the impurities can be separated and filtered in an energy-saving way.
The invention provides the following technical scheme: the rectifying structure comprises a water inlet unit, a water storage unit and a drainage unit, wherein the water inlet unit is vertically arranged on the side wall of the water storage unit, and rainwater flows to the water inlet unit through a ground sewer pipeline; the water inlet unit is used for circulating rainwater to the water storage unit, the water storage unit is used for receiving converged rainwater, and the water drainage unit for draining the rainwater in the water storage unit is arranged at the bottom of the water storage unit.
As a preferred scheme of the invention, the water storage unit comprises a water storage tank, rainwater flows into the water storage tank from the water inlet unit, the water storage tank is of a cylindrical structure, the water storage tank is vertically arranged, and the cylindrical structure has the largest area under the condition of fixed perimeter, so that more rainwater can be stored, the rainwater storage amount can be improved, and the building area can be reduced; the side wall of the cylindrical structure is bent and provided with curvature, and when rainwater flows into the water storage tank from the ground water inlet through the water inlet unit, the rainwater can carry a certain kinetic energy, so that the rainwater is in a flowing state after entering the water storage tank and can collide with the side wall of the water storage tank, the curvature can reduce the resistance born by the collision side wall when the rainwater flows, the rainwater can flow along the side wall of the water storage tank by means of the kinetic energy of the rainwater in the flowing process after entering the water storage tank, the flowing direction of the rainwater can be guided, and the violent impact of the rainwater in the flowing process is avoided, and the irregular vortex caused by the violent impact of the rainwater is avoided; the water storage tank can improve the rainwater storage amount and simultaneously enable rainwater to stably flow in the water storage tank, so that the stability of the rainwater in flowing is guaranteed.
As a preferable scheme of the invention, the water inlet unit comprises water inlet box culverts, wherein the water inlet box culverts are provided with three water inlet box culverts which are vertically arranged on the side wall of the water storage tank, the water inlet box culverts are tangentially communicated with the water storage tank, two water inlet box culverts close to the upper part of the water storage unit are obliquely arranged, the communication end of the water inlet box culverts and the water storage tank is a high endpoint, and one water inlet box culvert close to the lower part of the water storage unit is horizontally communicated with the water storage unit; in this way, after the rainwater flows into the water inlet box culvert through the ground sewer pipe, the rainwater flows into the water storage unit from the tangential direction through the water inlet box culvert; when rainwater flows tangentially through a water inlet box culvert like a water storage tank, the rainwater can flow along the side wall of the water storage tank through the kinetic energy carried by the rainwater when flowing, so that vortex-shaped regular water flows along the side wall of the water storage tank, the vortex-shaped regular water flows can enable the rainwater to flow directionally, irregular vortex formed by the rainwater in the water storage tank due to the fact that the kinetic energy carried by the rainwater impacts the side wall of the water storage tank is avoided, and the stability of the rainwater when flowing in the water storage tank is improved; the rainwater in the water inlet box culvert flows through the water storage tank along the tangential direction and is consistent with the vortex direction in the water storage tank, so that the resistance of the rainwater in the water inlet box culvert when flowing into the water storage tank is reduced, and the rainwater flow in the water inlet box culvert is improved;
The arrangement of the plurality of water inlet box culverts can lead rainwater to split, so that the overlarge impact of the rainwater caused by overlarge rainwater flow in the water inlet box culverts when the rainwater enters the water storage tank can be avoided, thereby avoiding irregular backflow and vortex generated by the larger impact, and further improving the rainwater flow of the water inlet box culverts flowing into the water storage tank while reducing the impact; the water inlet box culverts close to the inner bottom of the water storage tank are horizontally arranged, so that when the rainwater flow in the water inlet box culverts is small, the rainwater flow in the water inlet box culverts can flow to the water storage tank through the horizontal water inlet box culverts, the rainwater flow in the water inlet box culverts is gentle, the kinetic energy carried by the rainwater flow in the water inlet box culverts is small, the impact on the water storage tank is small, and irregular vortex and backflow caused by the rainwater impact in the water inlet box culverts are avoided;
When the rainwater flow is large, the rainwater can be split when entering, namely, the rainwater enters from the horizontal water inlet box culvert and enters from the inclined water inlet box culvert close to the top of the water storage tank, and the kinetic energy carried by the rainwater with large flow is large, so that the impact caused when the rainwater enters the water storage tank is overlarge, and irregular vortex and backflow are caused; the inclined arrangement of the water inlet box culvert above the water storage tank can reduce the kinetic energy carried by the rainwater by means of the height difference when the rainwater in the water inlet box culvert flows into the water storage tank from low to high, so that the rainwater is further prevented from generating larger impact when entering the water storage tank, irregular vortex and backflow caused by the larger impact are further avoided, and the stability of regular vortex-shaped water flow in the water storage tank is ensured;
When the inflow of rainwater is large, the vertically arranged water inlet box culvert can enable rainwater to uniformly circulate to the water inlet box culverts with different communication ports in the rainwater flowing process, so that the large-flow rainwater is split to be changed into a plurality of small-flow rainwater, and the stability of the rainwater in flowing is improved; and the water inlet box culvert that the slope set up can slow down the kinetic energy that the rainwater carried through the difference in height, has further increased the stability when the rainwater flows.
As a preferred scheme of the invention, the drainage unit comprises a plurality of drainage pumps which are arranged at the center of the bottom of the water storage tank, the drainage pumps can drain rainwater in the water storage tank, the drainage pumps can intermittently work, the drainage flow is improved, and meanwhile, the drainage quantity can be adjusted through intermittent work, so that the reduction of the working cost is facilitated; the drainage pump that the center was arranged can draw water from the water center of vortex form in the tank and discharge, and when the rainwater was vortex form and flows in the tank, the relative outer lane of vortex central point position rivers was comparatively mild, and mild rivers are favorable to improving the displacement of suction pump to improve the work efficiency of drainage pump, and then reduce working cost.
As the preferable scheme of the invention, the drainage unit comprises the drainage pump, the drainage pump is provided with a plurality of drainage pipes and is arranged at the bottom of the water storage tank in a circumferential array, when rainwater flows in a vortex shape in the water storage tank, impurities in the rainwater gradually converge towards the vortex-shaped center position under the traction of vortex-shaped water flow, so that the impurities can converge to the vortex-shaped water flow center position when flowing to the bottom of the water storage tank along with the rainwater, and the rainwater containing the impurities and pure rainwater are separated, so that the rainwater at the edge position of the vortex-shaped water flow is purer, the drainage pump can conveniently drain pure rainwater, the pure rainwater can avoid the influence of the impurities on the operation of the drainage pump, the damage or the fault caused by the impurities when the drainage pump drains is avoided, and the stability of the drainage pump in operation is guaranteed; meanwhile, impurities in the vortex-shaped water flow gradually converge towards the central position, rainwater at the edge position of the vortex-shaped water flow is gradually pure, and therefore diversion of the impurities and the pure rainwater can be achieved, and post-treatment of the pure rainwater and the impurities is facilitated.
As the preferable scheme of the invention, the sewage pump is arranged at the central position of the bottom of the water storage tank, impurities are gradually converged to the central position under the traction of vortex-shaped water flow, and the sewage pump can discharge the impurities converged at the central position of the vortex-shaped water flow, so that the impurities in the water storage tank can be discharged, excessive accumulation of the impurities in the water storage tank is avoided, and the phenomenon that the impurities pollute pure rainwater at the inner edge of the water storage tank excessively to influence the later use of the pure rainwater discharged by the drainage pump is avoided; meanwhile, the problem that the drain pipe and the drain pump are blocked due to excessive accumulation of impurities in the water storage tank is avoided, and the stability of the drain pump for draining rainwater is facilitated.
As a preferable scheme of the invention, a filter screen is arranged at the top of the drainage pump, the filter screen is used for filtering impurities in the water storage tank, when the drainage pump discharges pure rainwater in the water storage tank, when the vortex-shaped water flow converges impurities to a central position, impurities with overlarge mass or overlarge mass remain at the edge position of the vortex-shaped water flow, and the kinetic energy of the vortex-shaped water flow is insufficient to drive the impurities with overlarge mass or overlarge mass to be overlarge to the central position; the filter screen can be when pure rainwater is discharged to the drain pump, filters the impurity in the pure rainwater under the circumstances that contains impurity in the pure rainwater, receives impurity's pollution when preventing the drain pump in pure rainwater of discharge, has guaranteed that the drain pump can discharge pure rainwater, is favorable to the post treatment of the pure rainwater of drain pump discharge.
As a preferred scheme of the invention, the cleaning unit comprises a scraping plate, the scraping plate can clean impurities attached to the surface of the filter screen, when the drainage pump discharges pure rainwater, the impurities are accumulated and adsorbed on the surface of the filter screen due to the flowing of the pure rainwater, the inner bottom of the water storage tank is provided with a circular chute for installing the scraping plate along the periphery of the drainage pump communicating pipe, and the scraping plate is slidably arranged in the circular chute at the inner bottom of the water storage tank; the scraping plate is of a rectangular structure, vortex-shaped water flow in the water storage tank can drive the scraping plate to continuously slide in the circular chute, and the scraping plate can scrape impurities attached to the surface of the filter screen while sliding in the circular chute, so that the filter screen is prevented from being blocked due to excessive impurities on the surface of the filter screen, and pure rainwater can be stably discharged by the drainage pump; meanwhile, the scraping plate uses kinetic energy generated by flowing rainwater as power to drive, so that impurities on the surface of the filter screen are cleaned, and meanwhile, the cost of working energy is reduced.
As a preferable scheme of the invention, a liquid level sensor is arranged at the inner top of the water storage tank, the liquid level sensor is electrically connected with a control system, the liquid level sensor can control the water discharge pump to work through the control system, the liquid level sensor can realize intermittent work of the water discharge pump through the control system, thereby adjusting the flow rate and the efficiency of the water discharged by the water discharge pump, further realizing the flow rate and the efficiency of the discharged rainwater of the water discharge pump according to different rainfall and the flow rate of the rainwater flowing to the water storage tank in the rainwater pump station, and meeting the requirements of different rainfall and the rainwater flowing to the water storage tank for discharging the rainwater; the intermittent operation of the drainage pump adjusts the drainage amount, so that the energy waste and the working cost are reduced under the condition of meeting the requirements of different rainwater drainage.
As a preferable scheme of the invention, the liquid level sensor adopts an ultrasonic liquid level sensor, and the ultrasonic liquid level sensor can measure the height, namely the volume, of rainwater in the water storage tank through ultrasonic waves, so that the working quantity, namely the flow and the efficiency of the rainwater discharge pump are controlled and adjusted according to the volume of the rainwater in the water storage tank; and the ultrasonic measurement avoids the flushing and collision of rainwater and impurities in the rainwater, avoids the damage of the liquid level sensor caused by the collision of the impurities, is favorable for prolonging the service life of the liquid level sensor, and ensures the stability of the drainage pump in draining the rainwater.
The invention has the beneficial effects that by adopting the technical scheme, the invention has the following advantages:
1. According to the invention, through the design of the water storage tank and the water inlet box culvert, when the rainwater inflow is small, namely the carried kinetic energy is small, the rainwater flows to the water storage tank through the horizontal water inlet box culvert; when the rainwater entering amount is large, the rainwater is split by the inclined water inlet box culvert when the rainwater amount is large, namely the carried kinetic energy is too large, and the kinetic energy carried by the rainwater is reduced by the height difference formed by the inclined water inlet box culvert, so that irregular vortex generated by large impact of the rainwater when the rainwater enters the water storage tank is avoided, and the vortex-shaped water flow stability in the water storage tank is ensured;
the design of the water storage tank ensures that when rainwater enters the water storage tank, the rainwater can flow along the side wall of the water storage tank by virtue of the self kinetic energy and the resistance of the rainwater when flowing is reduced, so that the flowing of the rainwater is guided, the large impact of the rainwater when flowing is avoided, and the flowing stability of the rainwater in the water storage tank is ensured;
The cooperation of the water storage tank and the water inlet box culvert can enable rainwater to form stable directional vortex-shaped water flow in the water storage tank, meanwhile, impurities are drawn to be converged to the central position of the vortex-shaped water flow through the vortex-shaped water flow, and the edge position of the vortex-shaped water flow is pure rainwater, so that impurities and pure rainwater are separated, the filtration strength of a filter screen is reduced, and the later treatment and use of different rainwater are realized;
When the inflow of rainwater is large, the vertically arranged water inlet box culvert can enable rainwater to uniformly circulate to the water inlet box culverts with different communication ports in the rainwater flowing process, so that the large-flow rainwater is split to be changed into a plurality of small-flow rainwater, and the stability of the rainwater in flowing is improved; and the water inlet box culvert that the slope set up can slow down the kinetic energy that the rainwater carried through the difference in height, further increased the stability when the rainwater flows.
2. According to the invention, through the design of the sewage pump, the ultrasonic liquid level sensor and the drainage pump, the sewage pump discharges impurities at the central position of the vortex-shaped water flow, so that excessive accumulation of impurities in the water storage tank is avoided to block the drainage pipe and the drainage pump, the drainage pump can discharge pure rainwater at the edge position of the vortex-shaped water flow, the sewage pump and the drainage pump are mutually matched, pure rainwater and impurities can be discharged simultaneously, the phenomenon that impurities accumulate to excessively pollute the pure rainwater at the edge position of the vortex-shaped water flow is avoided, and meanwhile, the impurities are discharged to prevent the impurities from blocking the drainage pipe and the drainage pump, so that the stability of the drainage pump for discharging pure rainwater is ensured;
The ultrasonic liquid level sensor is matched with the drainage pump, and the ultrasonic liquid level sensor measures the height, namely the volume, of rainwater in the water storage tank through ultrasonic waves, so that the working quantity, namely the flow and the efficiency of the drainage pump for draining rainwater are controlled and adjusted according to the volume of the rainwater in the water storage tank, and the drainage pump can work intermittently; and the ultrasonic measurement avoids the flushing and collision of rainwater and impurities in the rainwater, avoids the damage of the liquid level sensor caused by the collision of the impurities, is favorable for prolonging the service life of the liquid level sensor, and ensures the stability of the drainage pump in draining the rainwater
3. The filter screen and the scraper are designed, the filter screen can further filter impurities remained at the edge of the vortex-shaped water flow, so that the pure rainwater can be discharged by the drainage pump, and the post treatment of the pure rainwater discharged by the drainage pump is facilitated; the scraping plate can drive the scraping plate to continuously slide in the circular chute through vortex-shaped water flow in the water storage tank, impurities attached to the surface of the filter screen are continuously cleaned in the sliding process, the filter screen is prevented from being blocked due to excessive accumulation of the impurities, and accordingly drainage quantity and efficiency of the drainage pump for draining rainwater in the water storage tank are affected; meanwhile, the scraping plate is driven by kinetic energy generated by flowing rainwater as power, so that impurities on the surface of the filter screen are cleaned, and meanwhile, the cost of working energy is reduced;
The filter screen and the scraper blade mutually support, can clear up the surface of filter screen when filtering impurity, avoided the filter screen to be blockked up by impurity when filtering and influence rainwater circulation to the discharge pump, guaranteed the stability when rainwater in the drain pump discharge tank.
Drawings
The drawings of the present invention are described below to facilitate understanding by those skilled in the art.
FIG. 1 is a schematic view showing the overall structure of a drain pump distribution according to embodiment 4 of the present invention;
FIG. 2 is a schematic diagram showing the overall structure of the other side of the drain pump according to embodiment 4;
FIG. 3 is a schematic view showing the overall structure of the drain pump distribution according to embodiment 5 of the present invention;
FIG. 4 is a schematic diagram showing the overall structure of the other side of the drain pump according to embodiment 5;
FIG. 5 is a schematic cross-sectional view of a water storage unit and a drainage unit of the present invention using the drainage pump of embodiment 4;
FIG. 6 is a schematic cross-sectional view of a water storage unit and a drainage unit of the present invention using the drainage pump of embodiment 5;
FIG. 7 is a schematic diagram showing another cross-sectional structure of a water storage unit and a drainage unit of the present invention using the drainage pump of embodiment 5;
FIG. 8 is a schematic diagram showing the distribution of the drain pump and the swirl flow in accordance with the embodiment 4 of the present invention;
FIG. 9 is a schematic diagram showing the distribution of the drain pump and the swirl flow in the embodiment 5 of the present invention;
Fig. 10 is a schematic cross-sectional view of a cleaning unit according to embodiment 5 of the present invention.
In the figure: the water inlet unit 1, the water inlet box culvert 11, the horizontal box culvert 111, the inclined box culvert 112, the water storage unit 2, the water storage tank 21, the water drainage unit 3, the drainage pump 31, the sewage pump 32, the liquid level sensor 33, the cleaning unit 4, the filter screen 41, the scraping plate 42 and the circular chute 43.
Detailed Description
The following detailed description of the technical solution of the present invention is provided for the convenience of those skilled in the art.
1, As shown in figures 1 to 4, a rectifying structure for improving the flow rate of a culvert of a water outlet tank of a rainwater pump station comprises a water inlet unit 1, a water storage unit 2 and a drainage unit 3, wherein the water inlet unit 1 is tangentially arranged on the side wall of the water storage unit 2, and rainwater flows to the water inlet unit 1 through a ground sewer pipeline; the water inlet unit 1 is used for circulating rainwater to the water storage unit 2, the water storage unit 2 is used for receiving converged rainwater, and the water drainage unit 3 for draining the rainwater in the water storage unit 2 is arranged at the bottom of the water storage unit 2.
1-4, The water storage unit 2 comprises a water storage tank 21, rainwater flows into the water storage tank 21 from the water inlet unit 1, the water storage tank 21 is of a cylindrical structure, the water storage tank 21 is vertically arranged, and the cylindrical structure has the largest area under the condition of fixed perimeter, so that more rainwater can be stored, the rainwater storage capacity can be improved, and the building area can be reduced; the side wall of the cylindrical structure is curved and provided with curvature, and when rainwater flows into the water storage tank 21 from the ground water inlet through the water inlet unit 1, the rainwater can carry a certain kinetic energy, so that the rainwater is in a flowing state after entering the water storage tank 21 and can collide with the side wall of the water storage tank, the curvature can reduce the resistance born by the collision side wall when the rainwater flows, the rainwater can flow along the side wall of the water storage tank by means of the kinetic energy of the rainwater in the flowing process after entering the water storage tank, the flow direction of the rainwater can be guided, and the violent impact of the rainwater in the flowing process is avoided, and the irregular vortex caused by the violent impact of the rainwater is avoided; the water storage tank 21 can improve the rainwater storage amount and simultaneously enable rainwater to stably flow in the water storage tank 21, so that the stability of the rainwater in flowing is guaranteed.
1-4, The water inlet unit 1 comprises a water inlet box culvert 11, wherein the water inlet box culvert 11 is provided with three vertical arrangements, the water inlet box culvert 11 is communicated with the water storage tank 21 along the tangential direction, two water inlet box culverts 11 close to the upper part of the water storage unit 2 are inclined water inlet box culverts 112 which are obliquely arranged, and the communicating ends of the inclined water inlet box culverts 112 and the water storage tank 21 are high end points; a water inlet box culvert 11 near the lower part of the water storage pool 21 is a horizontal water inlet box culvert 111 horizontally communicated with a water storage single pool; so that rainwater flows through the water inlet box culvert 11 from the tangential direction to the water storage tank 21 after flowing through the ground sewer pipe to the water inlet box culvert 11; when rainwater flows into the water storage tank 21 from the tangential direction through the water inlet box culvert 11, the rainwater can flow along the side wall of the water storage tank 21 through the kinetic energy carried by the rainwater when flowing, so that vortex-shaped regular water flows are formed along the side wall of the water storage tank 21, the vortex-shaped regular water flows can enable the rainwater to flow directionally, irregular vortex formed by the fact that the rainwater impacts the side wall of the water storage tank 21 for the kinetic energy carried by the rainwater in the water storage tank 21 is avoided, and stability of the rainwater when flowing in the water storage tank 21 is improved; the rainwater in the water inlet box culvert 11 flows along the tangential direction to the water storage tank 21 in a swirl direction consistent with the water storage tank 21, so that the resistance of the rainwater in the water inlet box culvert 11 when flowing to the water storage tank 21 is reduced, and the rainwater flow rate in the water inlet box culvert 11 is improved;
The arrangement of the plurality of water inlet box culverts 11 can lead rainwater to be split, so that overlarge impact caused by overlarge rainwater flow in the water inlet box culverts 11 when the rainwater enters the water storage tank 21 can be avoided, thereby avoiding irregular backflow and vortex generated by the large impact, and further improving the rainwater flow of the water inlet box culverts 11 flowing into the water storage tank 21 while reducing the impact; the horizontal water inlet box culvert 111 near the inner bottom of the water storage tank 21 is horizontally arranged, so that when the rainwater flow in the water inlet box culvert 11 is small, the rainwater can flow to the water storage tank 21 through the horizontal water inlet box culvert 111, the rainwater flow in the water inlet box culvert 11 is gentle when the rainwater flow is small, and the kinetic energy carried by the rainwater flow is small, so that the impact on the water storage tank 21 is small, and irregular vortex and backflow caused by the rainwater impact in the water inlet box culvert 11 are avoided;
When the rainwater flow is large, the rainwater can be split when entering, namely, the rainwater enters from the horizontal water inlet box culvert 111 and enters from the inclined water inlet box culvert 112 near the top of the water storage tank 21, and the kinetic energy carried by the rainwater with large flow is large, so that the impact caused when the rainwater enters the water storage tank 21 is excessive, and irregular vortex and backflow are caused; the inclined arrangement of the inclined water inlet box culvert 112 above the water storage tank 21 can reduce the kinetic energy carried by the rainwater by means of the height difference when the rainwater in the water inlet box culvert 11 flows through the water storage tank 21 from low to high, so that the rainwater is further prevented from generating larger impact when entering the water storage tank 21, irregular vortex and backflow generated by the larger impact are further avoided, and the stability of regular vortex-like water flow in the water storage tank 21 is ensured;
When the inflow amount of rainwater is large, the vertically arranged water inlet box culvert 11 can enable rainwater to uniformly circulate into the water inlet box culverts 11 with different communication ports in the rainwater flowing process, and the large-flow rainwater is split to be changed into a plurality of small-flow rainwater, so that the stability of the rainwater in flowing is improved; and the water inlet box culvert 11 that the slope set up can slow down the kinetic energy that the rainwater carried through the difference in height, has further increased the stability when the rainwater flows.
Embodiment 4 as shown in fig. 1 to 2, 5 and 8, the drainage unit 3 comprises drainage pumps 31, wherein the drainage pumps 31 are provided with a plurality of drainage pumps and are installed at the center position of the bottom of the water storage tank 21, the drainage pumps 31 can drain rainwater in the water storage tank 21, the drainage pumps 31 can intermittently work, the drainage amount can be adjusted through intermittent work while the drainage flow rate is improved, and the reduction of the working cost is facilitated; the drain pump 31 that the center was arranged can follow the discharge of drawing water in the water storage tank 21 vortex-like rivers center, the rainwater is in when being vortex-like flow in the water storage tank 21, vortex central point position rivers are comparatively mild with the outer lane, and mild rivers are favorable to improving the displacement of suction pump, thereby improve the work efficiency of drain pump 31, and then reduce working cost.
Embodiment 5 as shown in fig. 3 to 4, 6 and 9, the drain unit 3 includes a drain pump 31, the drain pump 31 is provided in plurality and installed in a circumferential array at the bottom of the reservoir 21; when rainwater flows in a vortex shape in the water storage tank 21, impurities in the rainwater are gradually converged towards the vortex-shaped central position under the traction of vortex-shaped water flow, so that the impurities can be converged to the vortex-shaped water flow central position when flowing to the bottom of the water storage tank 21 along with the rainwater, and therefore the rainwater containing the impurities and pure rainwater are separated, the rainwater at the edge position of the vortex-shaped water flow is purer, and the drainage pump 31 can drain the pure rainwater and is convenient to use; the pure rainwater can avoid the influence of impurities on the work of the drain pump 31, so that the damage or faults caused by the impurities when the drain pump 31 drains water are avoided, and the stability of the drain pump 31 in work is guaranteed; meanwhile, impurities in the vortex-shaped water flow gradually converge towards the central position, rainwater at the edge position of the vortex-shaped water flow is gradually pure, and therefore diversion of the impurities and the pure rainwater can be achieved, and post-treatment of the pure rainwater and the impurities is facilitated.
As shown in fig. 4, 9 and 10, a drain pump 32 is installed at the central position of the bottom of the water storage tank 21, impurities are gradually converged to the central position under the traction of vortex-shaped water flow, and the drain pump 32 can discharge the impurities converged at the central position of the vortex-shaped water flow, so that the impurities in the water storage tank 21 can be discharged, excessive accumulation of the impurities in the water storage tank 21 is avoided, and the phenomenon that the impurities pollute pure rainwater at the inner edge of the water storage tank 21 excessively, so that the later use of the pure rainwater discharged by the drain pump 31 is influenced is avoided; meanwhile, the phenomenon that the drain pipe and the drain pump 31 are blocked due to excessive accumulation of impurities in the water storage tank 21 is avoided, and the stability of the drain pump 31 for draining rainwater is facilitated.
5-6 And 10, a filter screen 41 is installed on top of the drain pump 31, the filter screen 41 is used for filtering impurities in the water storage tank 21, when the drain pump 31 drains pure rainwater in the water storage tank 21, a vortex-shaped water flow gathers impurities to a central position, impurities with excessive or too small mass remain at the edge position of the vortex-shaped water flow, and kinetic energy of the vortex-shaped water flow is insufficient to drive the impurities with excessive or too small mass to be gathered to the central position along with the vortex-shaped water flow; the filter screen 41 can be in when pure rainwater is discharged to drain pump 31, filter the impurity in the pure rainwater under the circumstances that contains impurity in the pure rainwater, prevent drain pump 31 receives impurity's pollution when pure rainwater is discharged, has guaranteed drain pump 31 can discharge pure rainwater, is favorable to drain pump 31 discharge pure rainwater's aftertreatment.
In the embodiment 8, as shown in fig. 5 to 6 and 10, a cleaning unit 4 is further installed in the water storage tank 21, the cleaning unit 4 includes a scraper 42, the scraper 42 can clean impurities attached to the surface of the filter screen 41, when the drain pump 31 discharges pure rainwater, the impurities are accumulated and adsorbed on the surface of the filter screen 41 due to the flow of the pure rainwater, a circular ring chute 43 for installing the scraper 42 is formed in the inner bottom of the water storage tank 21 along the periphery of the communicating pipe of the sewage pump 32, and the scraper 42 is slidably installed in the circular ring chute 43 at the inner bottom of the water storage tank 21; the scraping plate 42 is in a rectangular structure, the vortex-shaped water flow in the water storage tank 21 can drive the scraping plate 42 to continuously slide in the circular chute 43, and the scraping plate 42 can scrape impurities attached to the surface of the filter screen 41 while sliding in the circular chute 43, so that the filter screen 41 is prevented from being blocked due to excessive impurities on the surface of the filter screen 41, and the drain pump 31 can stably drain pure rainwater; meanwhile, the scraping plate 42 is driven by kinetic energy generated by flowing rainwater as power, so that impurities on the surface of the filter screen 41 are cleaned, and meanwhile, the cost of working energy is reduced.
5-6 And 10, a liquid level sensor 33 is installed at the top of the inside of the water storage tank 21, the liquid level sensor 33 is electrically connected with a control system, the liquid level sensor 33 can control the operation of the water discharge pump 31 through the control system, the liquid level sensor 33 can realize intermittent operation of the water discharge pump 31 through the control system, thereby adjusting the flow rate and the efficiency of the water discharge pump 31 to discharge rainwater, further realizing the flow rate and the efficiency of the discharged rainwater of the water discharge pump 31 according to different rainfall and the flow rate of the rainwater flowing into the water storage tank 21 in the rainwater pump station, and meeting the requirements of different rainfall and the required discharged rainwater amount for the flow rate of the rainwater flowing into the water storage tank 21; the intermittent operation of the drain pump 31 adjusts the amount of water discharged, and reduces energy waste and working costs while satisfying different requirements for discharging rainwater.
Embodiment 10 as shown in fig. 5 to 6 and 10, the liquid level sensor 33 is an ultrasonic liquid level sensor, and the ultrasonic liquid level sensor can measure the height or volume of the rainwater in the water storage tank 21 by ultrasonic waves, so as to control and adjust the working quantity of the drainage pump 31, namely the flow rate and efficiency of the discharged rainwater according to the volume of the rainwater in the water storage tank 21; and the flushing and collision of rainwater and impurities in the rainwater are avoided through ultrasonic measurement, the damage of the liquid level sensor 33 caused by the collision of the impurities is avoided, the service life of the liquid level sensor 33 is prolonged, and the stability of the drainage pump 31 in draining the rainwater is ensured.
In the course of the work, when the rainwater gets into the rainwater pump station, the rainwater flows through the lower mouth of a river on ground and gathers to the rainwater pump station in the water inlet box culvert 11, the water inlet box culvert 11 tangential intercommunication tank 21, when the rainwater is by tangential circulation like in the tank 21 through water inlet box culvert 11, can flow along the tank 21 lateral wall through the kinetic energy that self carried when the rainwater flows, thereby form the regular rivers of vortex along the tank 21 lateral wall flow, the directional flow of rainwater can be made to the vortex form rivers, the irregular backward flow and the vortex that the rainwater formed because of the kinetic energy striking tank 21 lateral wall for self carried in the tank 21 have been avoided, and then the stability when the rainwater flows in the tank 21 has been improved.
When the rainwater flow in the water inlet box culvert 11 is small, the rainwater can flow to the water storage tank 21 through the horizontal water inlet box culvert 111, the rainwater flow is gentle when the rainwater flow in the water inlet box culvert 11 is small, and the kinetic energy carried by the rainwater when the rainwater flow is small, so that the impact of the rainwater entering the water storage tank through the horizontal water inlet box culvert 111 is small, and the irregular vortex and backflow caused by the impact of the rainwater in the horizontal water inlet box culvert 111 are avoided; when the rainwater circulation is big, namely from horizontal water inlet box culvert 111 entering simultaneously that the rainwater can get into from the slope water inlet box culvert 112 that is close to tank 21 top, the slope setting of the slope water inlet box culvert 112 that is close to tank 21 top can be when the rainwater circulation in water inlet box culvert 11 is gone into tank 21 promptly the rainwater from low to high circulation, relies on the difference in height to reduce the kinetic energy that rainwater self carried, avoid the rainwater to produce great impact when getting into tank 21, and then avoided great impact produced irregular vortex and backward flow, guaranteed the vortex form rivers stability of rule in the tank 21.
When the rainwater is discharged, and the rainwater flows in a vortex shape in the water storage tank 21, impurities in the rainwater gradually converge to the central position due to the traction of vortex-shaped water flow, so that the impurities and pure rainwater are separated, namely, the vortex-shaped edge is the impurity which is converged at the central position of the pure rainwater; the drain pump 31 installed at the bottom of the reservoir 21 can intermittently operate while discharging pure rainwater; the sewage pump 32 at the central position discharges impurities at the central position of the vortex-shaped water flow while discharging the pure rainwater, thereby facilitating different treatments of the pure rainwater and the impurities;
The filter screen 41 arranged at the top of the drainage pump 31 can filter impurities remained in pure rainwater at the edge of the vortex-shaped water flow while draining rainwater, so that the drainage pump 31 can drain pure rainwater, and the post treatment of the drainage pump 31 draining pure rainwater is facilitated; the scraping plate 42 arranged in the annular chute at the bottom of the water storage tank 21 is driven to slide through vortex-shaped water flow, namely, the scraping plate 42 is driven to slide in the annular chute by virtue of the kinetic energy of the vortex-shaped water flow in the flowing process, and impurities attached to the surface of the filter screen 41 are cleaned while the scraping plate 42 slides, so that the filter screen 41 is prevented from being blocked by excessive impurities on the surface of the filter screen 41, the pure rainwater can be stably discharged by the drainage pump 31, and meanwhile, the working energy cost is reduced;
During drainage, the ultrasonic liquid level sensor measures the height, namely the volume, of rainwater in the water storage tank 21 according to ultrasonic measurement, and controls and adjusts the working quantity of the drainage pump 31, namely the flow and efficiency of the drained rainwater through the control system according to the volume of the rainwater in the water storage tank 21, so that a rainwater pump station can realize the flow of the rainwater to the water storage tank 21 in the rainwater pump station according to different rainfall and rainwater, and the energy waste and the working cost are reduced under the condition of meeting different requirements of the drained rainwater;
After the ground rainwater dries up or completely flows into the water inlet box culvert 11, the rainwater in the water storage tank 21 is completely discharged by the drainage pump 31, and the drainage pump 31 stops working by the ultrasonic liquid level sensor through the control system, so that the rainwater pump station works completely.
The invention is described by the above preferred embodiments only, but the invention is not limited to the above preferred embodiments, and the structures, arrangement relations and connection relations of the components can be changed correspondingly, so that the improvement and the change of the individual components according to the principles of the invention are not excluded from the protection scope of the invention.
Claims (3)
1. Improve rectification structure of rainwater pump station play water tank culvert flow, its characterized in that: the rainwater drainage device comprises a water inlet unit (1), a water storage unit (2) and a drainage unit (3), wherein the water inlet unit (1) is vertically arranged on the side wall of the water storage unit (2), the water inlet unit (1) is used for circulating rainwater to the water storage unit (2), and the drainage unit (3) for draining the rainwater in the water storage unit (2) is arranged at the bottom of the water storage unit (2);
the water storage unit (2) comprises a water storage tank (21), and the water storage tank (21) is of a vertical cylindrical structure;
The water inlet unit (1) comprises water inlet box culverts (11), the water inlet box culverts (11) are provided with a plurality of vertical arrangements, the water inlet box culverts (11) are communicated to the water storage tank (21) along the tangential direction, the water inlet box culverts (11) close to the upper part of the top of the water storage tank (21) are obliquely arranged, and the water inlet box culverts (11) close to the bottom of the water storage tank (21) are horizontally arranged;
the drainage unit (3) comprises drainage pumps (31), and the drainage pumps (31) are arranged in a plurality and are arranged at the bottom center position of the water storage pool (21);
The drainage unit (3) comprises drainage pumps (31), and the drainage pumps (31) are provided with a plurality of drainage pipes and are arranged at the bottom of the water storage tank (21) in a circumferential array;
A sewage pump (32) is arranged at the center of the bottom of the water storage tank (21);
A filter screen (41) is arranged at the top of the drainage pump (31);
The cleaning unit (4) is further arranged at the inner bottom of the water storage tank (21), the cleaning unit (4) comprises a scraping plate (42), a circular ring chute (43) is formed in the inner bottom of the water storage tank (21) along the periphery of a communicating pipe of the sewage pump (32), and the scraping plate (42) is arranged in the circular ring chute (43) in the inner bottom of the water storage tank (21);
When rainwater enters a rainwater pump station, the rainwater flows and converges into a water inlet box culvert (11) of the rainwater pump station through a water outlet on the ground, the water inlet box culvert (11) is tangentially communicated with a water storage tank (21), and when the rainwater flows through the water inlet box culvert (11) from the tangential direction, the rainwater can flow along the side wall of the water storage tank (21) through the kinetic energy carried by the rainwater when flowing, so that vortex-shaped regular water flows are formed along the side wall of the water storage tank (21), the vortex-shaped water flows can enable the rainwater to flow directionally, irregular backflow and vortex formed by the fact that the rainwater impacts the side wall of the water storage tank (21) due to the kinetic energy carried by the rainwater in the water storage tank (21) are avoided, and stability of the rainwater flowing in the water storage tank (21) is improved;
When the rainwater flow in the water inlet box culvert (11) is small, the rainwater can flow to the water storage tank (21) through the horizontal water inlet box culvert (111), the rainwater flow in the water inlet box culvert (11) is relatively gentle, and the kinetic energy carried by the rainwater when the rainwater flow is relatively small, so that the impact of the rainwater entering the water storage tank through the horizontal water inlet box culvert (111) is relatively small, and further irregular vortex and backflow caused by the impact of the rainwater in the horizontal water inlet box culvert (111) are avoided; when the rainwater flow is large, namely, rainwater enters from a horizontal water inlet box culvert (111) and enters from an inclined water inlet box culvert (112) close to the top of the water storage tank (21), the inclined water inlet box culvert (112) close to the upper part of the water storage tank (21) is obliquely arranged, so that the rainwater can circulate from low to high when the rainwater in the water inlet box culvert (11) circulates into the water storage tank (21), the kinetic energy carried by the rainwater is reduced by means of the height difference, the rainwater is prevented from generating larger impact when entering into the water storage tank (21), irregular vortex and backflow generated by the larger impact are further avoided, and the stability of regular vortex-like water flow in the water storage tank (21) is ensured;
When the rainwater is discharged, and flows in a vortex shape in the water storage tank (21), impurities in the rainwater gradually converge towards the central position due to the traction of vortex-shaped water flow, so that the impurities and pure rainwater are separated, namely, the vortex-shaped edge is pure rainwater, and the central position is the converged impurities; the drain pump (31) arranged at the bottom of the water storage tank (21) can intermittently work and simultaneously drain pure rainwater; the sewage pump (32) at the central position discharges impurities at the central position of the vortex-shaped water flow while discharging the pure rainwater, thereby facilitating different treatments of the pure rainwater and the impurities;
the filter screen (41) arranged at the top of the drainage pump (31) can filter impurities remained in pure rainwater at the edge of the vortex-shaped water flow while draining rainwater, so that the drainage pump (31) can drain pure rainwater, and the post treatment of the drainage pump (31) for draining pure rainwater is facilitated; and scraper blade (42) of installation in annular spout in tank (21) drives the slip through vortex form rivers promptly relies on the kinetic energy drive of vortex form rivers in the flow process to slide in annular spout, and scraper blade (42) are clear up filter screen (41) surface adhesion's impurity when gliding, have prevented that filter screen (41) surface impurity from too much messenger's filter screen (41) from blockking up.
2. The rectifying structure for improving the flow rate of a culvert of a water outlet tank of a rainwater pump station according to claim 1, wherein: the top in tank (21) is installed liquid level sensor (33), and liquid level sensor (33) are connected with control system electricity.
3. The rectifying structure for improving the flow rate of a culvert of a water outlet tank of a rainwater pump station according to claim 2, wherein: the liquid level sensor (33) adopts an ultrasonic liquid level sensor (33).
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| CN206090802U (en) * | 2016-08-23 | 2017-04-12 | 株式会社荏原制作所 | Drain pump device |
| CN206716235U (en) * | 2017-05-27 | 2017-12-08 | 武汉科技大学 | A kind of use for laboratory waterpower spiral screen and waterpower spiral screen system |
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| JPH0499756U (en) * | 1991-02-05 | 1992-08-28 | ||
| JPH0889710A (en) * | 1994-09-22 | 1996-04-09 | Ebara Corp | Sewage draining device |
| JP2006097378A (en) * | 2004-09-30 | 2006-04-13 | Tsukishima Kikai Co Ltd | Pump station facility |
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Inventor after: Chen Shigang Inventor after: Liu Yongfei Inventor after: Luo Chao Inventor after: Zhou Lu Inventor after: Liu Guolei Inventor after: Xiong Maohua Inventor after: Song Lihao Inventor after: Yan Chaoran Inventor after: Ning Fangbo Inventor after: Xiang Dianyu Inventor before: Liu Guolei Inventor before: Xiong Maohua Inventor before: Song Lihao Inventor before: Yan Chaoran Inventor before: Ning Fangbo Inventor before: Xiang Dianyu Inventor before: Liu Yongfei |
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