CN116856527A - Integrated pump station system - Google Patents
Integrated pump station system Download PDFInfo
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- CN116856527A CN116856527A CN202310992556.2A CN202310992556A CN116856527A CN 116856527 A CN116856527 A CN 116856527A CN 202310992556 A CN202310992556 A CN 202310992556A CN 116856527 A CN116856527 A CN 116856527A
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- submersible sewage
- pump
- pump station
- integrated prefabricated
- cylinder
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- 239000010865 sewage Substances 0.000 claims abstract description 119
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000011010 flushing procedure Methods 0.000 claims abstract description 23
- 239000010802 sludge Substances 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 40
- 239000007789 gas Substances 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000007858 starting material Substances 0.000 claims description 9
- 230000003993 interaction Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000011152 fibreglass Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000008030 elimination Effects 0.000 claims description 4
- 238000003379 elimination reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002341 toxic gas Substances 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000010813 municipal solid waste Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- -1 rainwater Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
-
- 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
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
- E03F9/007—Devices providing a flushing surge
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The application relates to the technical field of automatic equipment, in particular to an integrated pump station system. The system provided by the application comprises a remote monitoring center, a plurality of integrated prefabricated pump stations and a plurality of local electric control cabinets, wherein each integrated prefabricated pump station comprises a cylinder, a plurality of submersible sewage pumps arranged in the cylinder, and a water inlet pipeline and a water outlet pipeline arranged on the cylinder; the local electric control cabinet comprises a PLC controller, each submersible sewage pump is provided with a flushing valve, and a plurality of submersible sewage pumps and the flushing valves are respectively and electrically connected with the PLC controller; the PLC is used for controlling the flushing valve to open and run for a preset time period to spray water to the bottom of the cylinder body so as to remove sludge in the bottom of the cylinder body when the submersible sewage pump is controlled to start based on the Venturi effect and the pressure difference in the integrated prefabricated pump station. Thus, the sludge in the integrated prefabricated pump station can be removed.
Description
Technical Field
The application relates to the technical field of automatic equipment, in particular to an integrated pump station system.
Background
The traditional concrete submersible sewage pump station increasingly exposes the defects that the traditional concrete submersible sewage pump station is difficult to overcome, such as large occupied space, low utilization rate of the internal space of the pump station, long and complex construction period, high leakage risk, high influence of odor and noise on the surrounding environment, poor environment friendliness, high investment cost risk and the like, by adopting a reinforced concrete structure, the integrated prefabricated pump station is a novel sewage lifting device and has the characteristics of high integration level, small volume, hidden installation, short construction period, convenience in maintenance and the like, and is an ideal substitute for the traditional concrete prefabricated pump station.
In general, a submersible sewage pump is configured in an integrated prefabricated pump station, a special control system is matched, and the integrated prefabricated pump station is combined with an Internet of things platform to realize automatic control and visual remote monitoring of the pump station through equipment such as a data acquisition instrument, a sensor, a wireless network and the like. The pump station has advanced structure, convenient maintenance, strong reliability and high intelligent degree, reduces the workload, further improves the working efficiency, and has wide application prospect in the aspects of urban pollution discharge and rainwater collection. However, when the integrated prefabricated pump station operates, the condition that sludge exists in the cylinder body exists, so that how to remove the sludge in the integrated prefabricated pump station is a technical problem to be solved urgently.
Disclosure of Invention
Therefore, the embodiment of the application at least provides an integrated pump station system, which can realize the removal of sludge in the integrated prefabricated pump station.
The embodiment of the application provides an integrated pump station system, which comprises a remote monitoring center, a plurality of integrated prefabricated pump stations and local electrical control cabinets correspondingly arranged on any one of the integrated prefabricated pump stations, wherein any one of the local electrical control cabinets is electrically connected with the corresponding integrated prefabricated pump station and the remote monitoring center respectively; the integrated prefabricated pump station comprises a cylinder body, a plurality of submersible sewage pumps arranged in the cylinder body, and a water inlet pipeline and a water outlet pipeline arranged on the cylinder body; the local electric control cabinet comprises a PLC controller, each submersible sewage pump is provided with a flushing valve, and the plurality of submersible sewage pumps and the flushing valves are respectively and electrically connected with the PLC controller; the PLC is used for controlling the flushing valve to open and run for a preset time period to spray water on the bottom of the cylinder body so as to clean sludge in the bottom of the cylinder body based on Venturi effect and pressure difference in the integrated prefabricated pump station when the submersible sewage pump is controlled to start.
In one possible implementation manner, the plurality of submersible sewage pumps comprise a first submersible sewage pump, a second submersible sewage pump and a third submersible sewage pump, a liquid level meter is arranged in the cylinder body, and the liquid level meter is electrically connected with the PLC; the PLC is further used for controlling the first submersible sewage pump to start when detecting that the target liquid level sent by the liquid level meter meets the starting condition of the first submersible sewage pump; when the target liquid level reduction value is detected to not meet the pump stopping condition, controlling the second submersible sewage pump to start, and if the second submersible sewage pump is detected to be faulty, starting the third submersible sewage pump; and controlling the first submersible sewage pump and the third submersible sewage pump to stop when the target liquid level is detected to be reduced to meet a pump stopping condition.
In a possible implementation manner, a crushing grid is further arranged in the cylinder body, the crushing grid comprises a waterproof motor, a current transmitter is arranged on the waterproof motor, and the current transmitter and the waterproof motor are electrically connected with the PLC; wherein, the PLC controller controls the crushing grid to intermittently work according to the following steps: in the process of controlling the crushing grid to work, detecting whether the forward rotation time length of the waterproof motor is greater than or equal to a first time length threshold value, and if so, controlling the waterproof motor to rotate reversely; detecting whether the reverse rotation time length of the waterproof motor is greater than a second time length threshold value, and if so, controlling the waterproof motor to rotate positively; detecting whether the working current of the crushing grid is larger than a preset current threshold value; if yes, controlling the waterproof motor to reversely rotate; if not, determining that the forward rotation time length of the waterproof motor reaches a third time length threshold value, and repeating the steps.
In one possible implementation manner, any one of the local electrical control cabinets is used for sending the pump station operation data of the collected corresponding integrated prefabricated pump station to the remote monitoring center; the pump station operation data comprise working condition data and monitoring parameter data of all equipment in the integrated prefabricated pump station; the remote monitoring center is used for determining whether the integrated prefabricated pump station has abnormal operation conditions according to the received pump station operation data of any integrated prefabricated pump station and carrying out early warning when the abnormal operation conditions occur; the abnormal operation condition comprises at least one of current overrun, voltage overrun and equipment failure of any one of the integrated prefabricated pump stations, and at least one of liquid level overrun, water inlet pressure overrun and water outlet pressure overrun.
In one possible implementation manner, an exhaust pipe and a gas detection sensor are arranged at the top of the cylinder, the exhaust pipe is connected with an exhaust fan, and the exhaust fan and the gas detection sensor are respectively and electrically connected with the PLC; the PLC is also used for controlling the exhaust fan to start according to the gas concentration value sent by the gas detection sensor so as to realize ventilation and exhaust of the cylinder, odor elimination and toxic gas elimination.
In one possible embodiment, the local electrical control cabinet is provided with a touch screen and control buttons; the water outlet pipeline is provided with a flowmeter and a pressure transmitter, and the flowmeter, the pressure transmitter, the touch screen and the control button are all electrically connected with the PLC; the control button comprises a relay button, a soft starter button and an alternating current contactor button, and the soft starter is a starter of the submersible sewage pump.
In a possible implementation manner, the remote monitoring center comprises a man-machine interaction interface, wherein an operation sub-interface of each integrated prefabricated pump station is displayed on the man-machine interaction interface, and the operation sub-interface comprises working state information, a starting selection control, a starting liquid level setting area, working state information of a crushing grid and a real-time liquid level display area of each submersible sewage pump.
In one possible implementation, the bottom of the cylinder adopts a concave basin structure, when any submersible sewage pump is started, the precipitated solid is suspended, and the self-cleaning is realized by the large flow rate near the pump pit.
In one possible embodiment, the cylinder is a fiber wound glass reinforced plastic material to resist corrosion, tearing and other damaging forces.
In a possible implementation manner, the system further comprises clients corresponding to the integrated prefabricated pump stations respectively, and when the remote monitoring center determines that any one of the integrated prefabricated pump stations has abnormal operation, the remote monitoring center pushes early warning information to the client corresponding to the integrated prefabricated pump station in a grading manner in a preset communication mode; the client comprises a mobile terminal, a WEB terminal and a PC terminal; the preset communication modes comprise a short message mode, a voice information mode and an instant messaging software mode.
The integrated pump station system provided by the embodiment of the application comprises a remote monitoring center, a plurality of integrated prefabricated pump stations and a plurality of local electric control cabinets, wherein each integrated prefabricated pump station comprises a barrel, a plurality of submersible sewage pumps arranged in the barrel, and a water inlet pipeline and a water outlet pipeline arranged on the barrel; the local electric control cabinet comprises a PLC controller, each submersible sewage pump is provided with a flushing valve, and a plurality of submersible sewage pumps and the flushing valves are respectively and electrically connected with the PLC controller; the PLC is used for controlling the flushing valve to open and run for a preset time period to spray water to the bottom of the cylinder body so as to remove sludge in the bottom of the cylinder body when the submersible sewage pump is controlled to start based on the Venturi effect and the pressure difference in the integrated prefabricated pump station. Thus, the sludge in the integrated prefabricated pump station can be removed.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of an integrated pump station system provided by an embodiment of the present application;
FIG. 2 shows a schematic structural diagram of an integrated prefabricated pump station provided by an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a man-machine interface according to an embodiment of the present application;
fig. 4 shows a schematic view of the bottom structure of a barrel according to an embodiment of the present application.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for the purpose of illustration and description only and are not intended to limit the scope of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. A flowchart, as used in this disclosure, illustrates operations implemented according to some embodiments of the present application. It should be appreciated that the operations of the flow diagrams may be implemented out of order and that steps without logical context may be performed in reverse order or concurrently. Moreover, one or more other operations may be added to or removed from the flow diagrams by those skilled in the art under the direction of the present disclosure.
In addition, the described embodiments are only some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art based on embodiments of the application without making any inventive effort, fall within the scope of the application.
In order to enable those skilled in the art to make use of the present disclosure, the following embodiments are provided in connection with a particular application scenario "integrated prefabricated pump station operation", and it will be apparent to those skilled in the art that the general principles defined herein may be applied to other embodiments and application scenarios without departing from the spirit and scope of the present disclosure.
The system disclosed by the embodiment of the application can be applied to any scene needing to run the integrated prefabricated pump station, the embodiment of the application does not limit specific application scenes, and any scheme using the integrated pump station system provided by the embodiment of the application is within the protection scope of the application.
It is worth noting that in general, a submersible sewage pump is configured in an integrated prefabricated pump station, and the automatic control and the visual remote monitoring of the pump station are realized through equipment such as a data acquisition instrument, a sensor, a wireless network and the like by combining a special control system with an internet of things platform. The pump station has advanced structure, convenient maintenance, strong reliability and high intelligent degree, reduces the workload, further improves the working efficiency, and has wide application prospect in the aspects of urban pollution discharge and rainwater collection. However, before the present application proposes, the condition that sludge exists in the cylinder of the integrated prefabricated pump station in the related art during operation, so how to remove the sludge in the integrated prefabricated pump station is a technical problem to be solved at present.
In order to solve the problems, the system provided by the embodiment of the application comprises a remote monitoring center, a plurality of integrated prefabricated pump stations and a plurality of local electric control cabinets, wherein each integrated prefabricated pump station comprises a cylinder, a plurality of submersible sewage pumps arranged in the cylinder, and a water inlet pipeline and a water outlet pipeline arranged on the cylinder; the local electric control cabinet comprises a PLC controller, each submersible sewage pump is provided with a flushing valve, and a plurality of submersible sewage pumps and the flushing valves are respectively and electrically connected with the PLC controller; the PLC is used for controlling the flushing valve to open and run for a preset time period to spray water to the bottom of the cylinder body so as to remove sludge in the bottom of the cylinder body when the submersible sewage pump is controlled to start based on the Venturi effect and the pressure difference in the integrated prefabricated pump station. Thus, the sludge in the integrated prefabricated pump station can be removed.
In order to facilitate understanding of the present application, the following detailed description of the technical solution provided by the present application is provided in connection with specific embodiments.
Fig. 1 shows a schematic structural diagram of an integrated pump station system according to an embodiment of the present application. As shown in fig. 1, in the integrated pump station system provided by the embodiment of the present application, a remote monitoring center 10, a plurality of integrated prefabricated pump stations 30, and local electrical control cabinets 20 correspondingly provided for any one of the integrated prefabricated pump stations 30, where any one of the local electrical control cabinets 20 is electrically connected with the corresponding integrated prefabricated pump station 30 and the remote monitoring center 10 respectively. It should be noted that the number of integrated prefabricated pump stations 30 in fig. 1 is merely an example, and the present application is not limited to the specific number of integrated prefabricated pump stations 30.
FIG. 2 shows a schematic structural diagram of an integrated prefabricated pump station according to an embodiment of the present application, and as shown in FIG. 2, the integrated prefabricated pump station 30 includes a cylinder 310, a plurality of submersible sewage pumps 320 disposed in the cylinder 310, and a water inlet pipeline and a water outlet pipeline disposed on the cylinder 310; the local electric control cabinet 20 comprises a PLC controller, a flushing valve 330 is arranged on each submersible sewage pump 320, and the plurality of submersible sewage pumps 320 and the flushing valves 330 are respectively and electrically connected with the PLC controller; the PLC controller is configured to control the flushing valve 330 to open and operate for a preset period of time to perform water injection on the bottom of the cylinder 310, so as to clean sludge in the bottom of the cylinder 310, when the submersible sewage pump 320 is controlled to be started, based on a venturi effect and a pressure difference in the integrated prefabricated pump station 30. It should be noted that the submersible sewage pump 320 in fig. 2 is not all shown, and the number of submersible sewage pumps 320 in fig. 2 is merely an example, and the present application is not limited to the specific number of submersible sewage pumps 320.
The integrated pump station system provided by the application comprises a remote monitoring center 10, a plurality of integrated prefabricated pump stations 30 and a local electrical control cabinet 20 correspondingly equipped with any one of the integrated prefabricated pump stations 30, wherein the remote monitoring center 10 is used for remotely monitoring and controlling the plurality of integrated prefabricated pump stations 30 so as to realize remote data acquisition, management and control, and the purposes of unmanned duty and watching of the pump stations can be realized without manual on-site inspection.
Here, each integrated prefabricated pump station 30 is correspondingly provided with a local electrical control cabinet 20, and the local electrical control cabinet 20 is electrically connected with each device in the integrated prefabricated pump station 30, and the local electrical control cabinet 20 can control each device in the integrated prefabricated pump station 30 to work.
Here, a molded case circuit breaker, a frequency converter, a PLC controller, and a touch screen may be provided in the local electric control cabinet 20, and the molded case circuit breaker, the frequency converter, and the touch screen are connected to the PLC controller.
The integrated prefabricated pump station 30 (Integrated prefabricated pumping station) is a lifting device for lifting sewage, rainwater, drinking water and wastewater, and is produced and assembled uniformly by a factory and then transported to a field-mounted booster pump station. Typically, the integrated prefabricated pump station 30 is composed of a top cover, a glass fiber reinforced plastic (GRP) cylinder 310, a base, a submersible sewage pump 320, a service platform, a pipeline and other parts to meet the requirements of pressurizing, lifting and draining. As shown in fig. 1, the integrated prefabricated pump station 30 includes a cylinder 310, a plurality of submersible sewage pumps 320 disposed in the cylinder 310, and a water inlet pipe and a water outlet pipe disposed on the cylinder 310, and in general, a water inlet end of the submersible sewage pump 320 is connected with a water storage tank of a clean water tank through the water inlet pipe, and a water outlet end of the submersible sewage pump 320 is connected with a water inlet main pipe of the integrated prefabricated pump station 30 of a next stage through the water outlet pipe. Here, the submersible sewage pump 320 of the application has high temperature, oil leakage and water leakage alarming functions, the submersible sewage pump 320 can be a WQ vertical submersible centrifugal sewage pump, and the submersible sewage pump adopts the latest double-flow-channel hydraulic design concept and has no design structure in the form of a blockage wide-flow-channel impeller.
The water inlet pipeline is provided with a water inlet collecting pipe, the water outlet pipeline is provided with a water outlet collecting pipe, the water inlet of each submersible sewage pump 320 is connected with the water inlet collecting pipe through a water inlet branch pipe, and the water outlet of each submersible sewage pump 320 is connected with the water outlet collecting pipe through a water outlet branch pipe; a ball valve is arranged on each water inlet branch pipe, a check valve is arranged on each water outlet branch pipe, and the control end of the electrical control cabinet is connected with each submersible sewage pump 320, the ball valve and the check valve.
Aiming at the condition that sludge exists in the cylinder 310 of the integrated prefabricated pump station 30 in the related art when the integrated prefabricated pump station 30 operates, the application controls each submersible sewage pump 320 by performing CFD (computational fluid dynamics) computer hydrodynamic analysis, in addition, a customized flushing valve 330 is additionally arranged on a water pump, a PLC (programmable logic controller) is used for utilizing the Venturi effect and the pressure difference in the integrated prefabricated pump station 30, and when the water pump is started, the flushing valve 330 automatically operates for a preset time period to perform bottom injection, so that the sludge is removed, and the problem of sludge deposition is thoroughly solved.
Here, the venturi effect, also called venturi effect, is represented by the phenomenon that when a restricted flow passes through a reduced flow section, the flow velocity of the fluid increases, the flow velocity being inversely proportional to the flow section. Whereas an increase in flow rate is known from bernoulli's law to be accompanied by a decrease in fluid pressure, a common venturi phenomenon. In a popular sense, this effect is that a low pressure is generated in the vicinity of the fluid flowing at a high speed, thereby generating an adsorption effect, and a venturi, i.e., the purge valve 330 for the present application, can be manufactured by using this effect. The present application takes advantage of this effect to achieve the removal of sludge from the bottom of cylinder 310, particularly when gas or liquid flows inside flush valve 330 (like a venturi tube), dynamic pressure reaches a maximum and static pressure reaches a minimum at the narrowest point of the tube, the velocity of the gas (liquid) rises due to the reduced cross-sectional area of the flow, and the entire surge is subjected to the tube shrinking process at the same time, thus reducing the pressure at the same time, creating a pressure differential that is used to measure or provide an external suction force to the fluid, and when the surge reaches the speed of sound, the venturi tube will be referred to as a Rafael nozzle (converging nozzle), i.e., flush valve 330.
In one possible implementation, the plurality of submersible sewage pumps 320 includes a first submersible sewage pump, a second submersible sewage pump, and a third submersible sewage pump, and a liquid level gauge is disposed in the cylinder 310 and is electrically connected with the PLC controller; the PLC is further used for controlling the first submersible sewage pump to start when detecting that the target liquid level sent by the liquid level meter meets the starting condition of the first submersible sewage pump; when the target liquid level reduction value is detected to not meet the pump stopping condition, controlling the second submersible sewage pump to start, and if the second submersible sewage pump is detected to be faulty, starting the third submersible sewage pump; and controlling the first submersible sewage pump and the third submersible sewage pump to stop when the target liquid level is detected to be reduced to meet a pump stopping condition.
Here, the pump station internally mounted pressure liquid level sensor (i.e. the liquid level gauge) and the floating ball are doubly controlled, the continuous liquid level collected by the liquid level gauge (4-20 ma) is uploaded to the local electric control cabinet 20, the automatic start and stop of the continuous liquid level are controlled by the PLC controller in the local electric control cabinet 20, the alternating operation is performed, and when the pressure liquid level sensor fails, the floating ball works, so that the reliable operation of the whole integrated prefabricated pump station 30 is ensured. Wherein, pressure sensor can set up the level gauge installation pipe, prevents to disturb and solid winding destruction.
In addition, the integrated prefabricated pump station 30 provided by the application is a pump station of an intelligent prefabricated pump station control system based on a PLC, and the submersible sewage pump 320 is automatically started, stopped and automatically switched in the running process, so that the integral running stability of the pump station and the utilization rate of a single pump are ensured, and a plurality of submersible sewage pumps 320 are set to be at least two-purpose one standby and mutually standby. In this way, the efficiency of the submersible sewage pump 320 can be improved, and the integrated prefabricated pump station 30 can continue to operate in the event of a failure of any one of the submersible sewage pumps 320.
In one example, at low liquid level, first start, first submersible sewage pump start; starting a second submersible sewage pump for the second time; and starting the third submersible sewage pump for the third time. When a fault occurs, the pump is automatically switched to the next pump and the alarm is given. When the liquid level is high, one submersible sewage pump 320 is started again on the basis of starting the existing submersible sewage pump 320, and when the failure occurs, the next submersible sewage pump is automatically switched to and alarms.
In a possible embodiment, as shown in fig. 2, a crushing grid 340 is further disposed in the cylinder 310, the crushing grid 340 includes a waterproof motor, a current transducer is disposed on the waterproof motor, and the current transducer and the waterproof motor are electrically connected with the PLC controller; wherein the PLC controller controls the crushing grid 340 to intermittently operate according to the steps of: in the process of controlling the operation of the crushing grid 340, detecting whether the forward rotation time length of the waterproof motor is greater than or equal to a first time length threshold value, and if yes, controlling the waterproof motor to rotate reversely; detecting whether the reverse rotation time length of the waterproof motor is greater than a second time length threshold value, and if so, controlling the waterproof motor to rotate positively; detecting whether the working current of the crushing grid 340 is greater than a preset current threshold; if yes, controlling the waterproof motor to reversely rotate; if not, determining that the forward rotation time length of the waterproof motor reaches a third time length threshold value, and repeating the steps.
Here, the pulverizing grating 340 is a novel pulverizing device for pulverizing solid matters in sewage into fine particles, and the solid matters in sewage are pulverized without salvaging, and at the same time, plays roles of protecting subsequent devices (blocking/winding/blocking), preventing each pipe and the submersible sewage pump 320 from being blocked, improving the subsequent treatment effect, improving the water quality condition, and the like. Wherein, can real-time supervision smash grid 340 electric current, control smash grid 340 reversal before reaching waterproof motor high temperature warning, with the reverse ejection of solid rubbish, protection smash grid 340. Among them, the pulverizing grating 340 may select the DFS500 pulverizing grating 340.
It should be noted that, the crushing grid 340 provided by the application has a high-temperature protection function, is used for crushing solid garbage in sewage, and has a phenomenon of blocking rotation when crushing garbage with high hardness, and at the moment, the current of the waterproof motor is increased, so that the temperature of the motor of the crushing grid 340 is increased. Therefore, the current transducer is selected to monitor the grid current in real time, the crushing grid 340 is controlled to reversely rotate before the motor high temperature alarm is reached, the solid garbage is reversely discharged, the crushing grid 340 is protected, the crushing grid 340 is automatically started and stopped on time, and the heating phenomenon can not occur.
In a possible implementation manner, any of the local electrical control cabinets 20 is configured to send the pump station operation data collected from the corresponding integrated prefabricated pump station 30 to the remote monitoring center 10; the pump station operation data comprise working condition data and monitoring parameter data of all equipment in the integrated prefabricated pump station 30; the remote monitoring center 10 is configured to determine, according to the received pump station operation data of any one of the integrated prefabricated pump stations 30, whether an abnormal operation condition occurs in the integrated prefabricated pump station 30, and perform early warning when the abnormal operation condition occurs; the abnormal operation condition comprises at least one of current overrun, voltage overrun, equipment failure, liquid level overrun, water inlet pressure overrun and water outlet pressure overrun of any one of the integrated prefabricated pump stations 30.
Here, the local electrical control cabinet 20 provided by the present application may collect the pump station operation data of the corresponding integrated prefabricated pump station 30, and send the pump station operation data to the remote monitoring center 10. The pump station operation data comprise working condition data and monitoring parameter data of each device in the integrated prefabricated pump station 30, wherein the working condition data comprise, but are not limited to, a solenoid valve start-stop state, a submersible sewage pump 320 operation voltage and a power supply state; the monitored parameter data includes, but is not limited to, blowdown flow rate data, conduit pressure data, water quality data, and liquid level data.
The remote monitoring center 10 in the application can perform comprehensive analysis of water quality, monitoring of liquid level condition, operation monitoring of electromagnetic valve, operation state monitoring of the submersible sewage pump 320, monitoring of voltage overrun, monitoring of sewage discharge flow, monitoring of pipeline pressure, monitoring of power supply state and the like on each integrated prefabricated pump station 30, can remotely monitor and manage the pump stations, is highly automated, utilizes an automatic control system to complete an alarm system, has complete early warning and alarm functions, and can timely alarm against current and voltage overrun, water tank liquid level overrun, water inlet or water outlet pressure overrun and equipment faults. Therefore, centralized and unified management of the data parameters and the running states of the equipment of each pump station can be realized, the workload of maintenance personnel is reduced, and the management cost of the pump station is also reduced.
Wherein, the water quality detector is installed at the water inlet of the prefabricated pump station 30 of integration, the water quality detector comprises pH value sensor, COD automatic analysis appearance and flowmeter.
In addition, the remote monitoring center 10 also has a data information storage function, and can store and record field data information, operation data information, historical fault problems and historical alarms at regular time, thereby providing convenience for future inquiry.
In a possible implementation manner, an exhaust pipe and a gas detection sensor are arranged at the top of the cylinder 310, the exhaust pipe is connected with an exhaust fan, and the exhaust fan and the gas detection sensor are respectively and electrically connected with the PLC; the PLC controller is further configured to control the exhaust fan to start according to the gas concentration value sent by the gas detection sensor, so as to ventilate and exhaust the cylinder 310, eliminate odor, and eliminate toxic gas.
Here, the integrated prefabricated pump station 30 provided by the application is provided with a device for protecting personnel safety on the premise of safety and reliability of the pump station, and the safety protection device comprises a toxic gas detection early warning function, an odor eliminating function and a ventilation and exhaust function. The safety protection device comprises an exhaust pipe, an exhaust fan and a gas detection sensor, and can be understood as an exhaust device, and is mainly used for cleaning air in a pump station and improving the safety of the pump station.
In one possible embodiment, the local electrical control cabinet 20 is provided with a touch screen and control buttons; the water outlet pipeline is provided with a flowmeter and a pressure transmitter, and the flowmeter, the pressure transmitter, the touch screen and the control button are all electrically connected with the PLC; the control buttons include a relay button, a soft starter button, and an ac contactor button, and the soft starter is a starter of the submersible sewage pump 320.
In a possible implementation manner, fig. 3 shows a schematic structural diagram of a man-machine interaction interface provided by the embodiment of the present application, as shown in fig. 3, where the remote monitoring center 10 includes a man-machine interaction interface 110, and an operation sub-interface of each integrated prefabricated pump station 30 is displayed on the man-machine interaction interface 110, where the operation sub-interface includes working state information, a start selection control, a start liquid level setting area, working state information of a crushing grid, and a real-time liquid level display area of each submersible sewage pump 320.
Here, the human-computer interaction interface 110 may implement the following functions: 1) Before the submersible sewage pump 320 operates, checking whether the motor insulation is normal; 2) Confirming that sundries in the pump station are cleared, and clicking the submersible sewage pump 3202-3 s in a non-water state to check whether the running direction of the submersible sewage pump 320 is consistent with the indication direction; 3) Checking whether the operation current of the submersible sewage pump 320 is within the rated range because water is discharged when the submersible sewage pump 320 is reversed, but the current greatly exceeds the rated current; 4) Checking whether the submersible sewage pump 320 has abnormal vibration, checking whether the crushing grid is reversed, checking whether the water outlet of the submersible sewage pump 320 is normal, checking the liquid level control condition, ensuring that the submersible sewage pump 320 runs above the minimum liquid level, and confirming that the installation of the submersible sewage pump 320 and the positioning of the floating ball are normal.
In a possible implementation, fig. 4 shows a schematic diagram of the bottom structure of the barrel provided by the embodiment of the present application, as shown in fig. 4, the bottom of the barrel 310 adopts a concave basin structure, and when any submersible sewage pump 320 is started, the precipitated solid is suspended, and the self-cleaning is realized by the large flow rate near the pump pit.
Here, as shown in fig. 4, the one-pump-basin distribution can resist the pressure of underground water, prevent deformation, only allow a small amount of sewage to stay in the pump pit at the same time, adopt CFD to simulate the flow field at the bottom of the pump station, design the optimal size and shape of the pump station, increase the vortex generated in the pumping process of the water pump, when any submersible sewage pump is started, suspend the precipitated solid, realize the self-cleaning effect at a large flow rate near the pump pit, avoid manual dredging, and prevent and treat anaerobic odor.
In one possible embodiment, the cylinder 310 is a fiber wound fiberglass material to resist corrosion, tearing, and other damaging forces.
Here, the design of barrel 310 is required to ensure that it can withstand the pressure of the surrounding backfill medium and the accessories and fluids within barrel 310, as well as the corrosive medium, temperature changes, etc. Based on the safety and reliability of FEA finite element stress analysis software, alkali-free glass fiber roving and products thereof are used as reinforcing materials, thermosetting resin with corrosion resistance is used as a matrix, and a computer is used for controlling a winding process, so that the thickness is ensured to be uniform and the design requirement is met. The Babbitt hardness of the cylinder 310 provided by the application can reach more than 40 and HBa, the compressive strength reaches 120MPa, the circumferential tensile strength reaches 150MPa, and the axial tensile strength reaches 60MPa.
In addition, the cylinder 310 provided by the application adopts high-strength alkali-free glass fiber reinforced plastic materials, a glass fiber winding process and FEA mechanical analysis software to check the mildness of the cylinder 310, so that the cylinder 310 is ensured not to deform and tear within a certain period of time, and meanwhile, a strict cylinder 310 ring stiffness test and an anti-leakage test are also performed, so that the cylinder is ensured to be safer and more reliable.
In a possible implementation manner, the system further includes clients corresponding to the integrated prefabricated pump stations 30, and when determining that any one of the integrated prefabricated pump stations 30 has an abnormal operation condition, the remote monitoring center 10 pushes the early warning information to the client corresponding to the integrated prefabricated pump station 30 in a grading manner in a preset communication manner; the client comprises a mobile terminal, a WEB terminal and a PC terminal; the preset communication modes comprise a short message mode, a voice information mode and an instant messaging software mode.
It should be noted that, the integrated prefabricated pump station 30 provided by the application is provided with the remote monitoring center 10 to realize remote data acquisition, management and control, and is capable of detecting working conditions and various parameters of remote data of pump station equipment, controlling the start and stop of the pump in a remote operation mode, transmitting data and alarm information to a mobile phone end or a web page of a monitoring attendant, reducing the need of manual on-site inspection, realizing the purposes of unmanned on duty and watching of the pump station, and simultaneously being capable of utilizing a computer client or a remote client to perform remote control. Through the remote maintenance function, the working parameters of the pump station can be remotely set and remotely modified, the user can conveniently and remotely maintain the terminal equipment, the pump station can realize remote computer, mobile phone APP and web, remote downloading alarm and the like through an Internet mode.
In the embodiment of the application, the system provided by the application comprises a remote monitoring center 10, a plurality of integrated prefabricated pump stations 30 and a plurality of local electric control cabinets 20, wherein the integrated prefabricated pump stations 30 comprise a cylinder 310, a plurality of submersible sewage pumps 320 arranged in the cylinder 310, and a water inlet pipeline and a water outlet pipeline arranged on the cylinder 310; the local electric control cabinet 20 comprises a PLC controller, a flushing valve 330 is arranged on each submersible sewage pump 320, and a plurality of submersible sewage pumps 320 and the flushing valves 330 are respectively and electrically connected with the PLC controller; the PLC is used for controlling the flushing valve 330 to open and run for a preset time period to spray water to the bottom of the cylinder 310 at the same time when the submersible sewage pump 320 is controlled to start based on the Venturi effect and the pressure difference in the integrated prefabricated pump station 30, so as to realize the removal of sludge in the bottom of the cylinder 310. In this way, the removal of sludge in the integrated prefabricated pump station 30 can be achieved.
In the embodiments provided in the present application, it should be understood that the disclosed system may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments provided in the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It should be noted that: like reference numerals and letters in the following figures denote like items, and thus once an item is defined in one figure, no further definition or explanation of it is required in the following figures, and furthermore, the terms "first," "second," "third," etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the scope of the present application, but it should be understood by those skilled in the art that the present application is not limited thereto, and that the present application is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the corresponding technical solutions. Are intended to be encompassed within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The integrated pump station system is characterized by comprising a remote monitoring center, a plurality of integrated prefabricated pump stations and local electrical control cabinets correspondingly arranged on any one of the integrated prefabricated pump stations, wherein any one of the local electrical control cabinets is electrically connected with the corresponding integrated prefabricated pump station and the remote monitoring center respectively; the integrated prefabricated pump station comprises a cylinder body, a plurality of submersible sewage pumps arranged in the cylinder body, and a water inlet pipeline and a water outlet pipeline arranged on the cylinder body; the local electric control cabinet comprises a PLC controller, each submersible sewage pump is provided with a flushing valve, and the plurality of submersible sewage pumps and the flushing valves are respectively and electrically connected with the PLC controller; wherein,,
the PLC is used for controlling the flushing valve to open and run for a preset time period to spray water on the bottom of the cylinder body so as to remove sludge in the bottom of the cylinder body based on Venturi effect and pressure difference in the integrated prefabricated pump station when the submersible sewage pump is controlled to start.
2. The system of claim 1, wherein the plurality of submersible sewage pumps comprises a first submersible sewage pump, a second submersible sewage pump, and a third submersible sewage pump, wherein a liquid level gauge is disposed within the cylinder and is electrically connected with the PLC controller; wherein,,
the PLC is further used for controlling the first submersible sewage pump to be started when the target liquid level sent by the liquid level meter is detected to meet the starting condition of the first submersible sewage pump; when the target liquid level reduction value is detected to not meet the pump stopping condition, controlling the second submersible sewage pump to start, and if the second submersible sewage pump is detected to be faulty, starting the third submersible sewage pump; and controlling the first submersible sewage pump and the third submersible sewage pump to stop when the target liquid level is detected to be reduced to meet a pump stopping condition.
3. The system of claim 1, wherein a crushing grid is further arranged in the cylinder, the crushing grid comprises a waterproof motor, a current transmitter is arranged on the waterproof motor, and the current transmitter and the waterproof motor are electrically connected with the PLC controller; wherein, the PLC controller controls the crushing grid to intermittently work according to the following steps:
in the process of controlling the crushing grid to work, detecting whether the forward rotation time length of the waterproof motor is greater than or equal to a first time length threshold value, and if so, controlling the waterproof motor to rotate reversely;
detecting whether the reverse rotation time length of the waterproof motor is greater than a second time length threshold value, and if so, controlling the waterproof motor to rotate positively;
detecting whether the working current of the crushing grid is larger than a preset current threshold value; if yes, controlling the waterproof motor to reversely rotate; if not, determining that the forward rotation time length of the waterproof motor reaches a third time length threshold value, and repeating the steps.
4. A system according to any one of claims 1 to 3, wherein,
any local electric control cabinet is used for sending the collected pump station operation data of the corresponding integrated prefabricated pump station to the remote monitoring center; the pump station operation data comprise working condition data and monitoring parameter data of all equipment in the integrated prefabricated pump station;
the remote monitoring center is used for determining whether the integrated prefabricated pump station has abnormal operation conditions according to the received pump station operation data of any integrated prefabricated pump station and carrying out early warning when the abnormal operation conditions occur; the abnormal operation condition comprises at least one of current overrun, voltage overrun and equipment failure of any one of the integrated prefabricated pump stations, and at least one of liquid level overrun, water inlet pressure overrun and water outlet pressure overrun.
5. A system according to any one of claims 1 to 3, wherein an exhaust duct and a gas detection sensor are arranged at the top of the cylinder, the exhaust duct is connected with an exhaust fan, and the exhaust fan and the gas detection sensor are respectively and electrically connected with the PLC controller; the PLC is also used for controlling the exhaust fan to start according to the gas concentration value sent by the gas detection sensor so as to realize ventilation and exhaust of the cylinder, odor elimination and toxic gas elimination.
6. A system according to any one of claims 1 to 3, wherein the local electrical control cabinet is provided with a touch screen and control buttons; the water outlet pipeline is provided with a flowmeter and a pressure transmitter, and the flowmeter, the pressure transmitter, the touch screen and the control button are all electrically connected with the PLC; the control button comprises a relay button, a soft starter button and an alternating current contactor button, and the soft starter is a starter of the submersible sewage pump.
7. The system of claim 1, wherein the remote monitoring center comprises a human-machine interaction interface, wherein an operation sub-interface of each integrated prefabricated pump station is displayed on the human-machine interaction interface, and the operation sub-interface comprises working state information, a starting selection control, a starting liquid level setting area, working state information of a crushing grid and a real-time liquid level display area of each submersible sewage pump.
8. The system of claim 1, wherein the bottom of the bowl is configured as a recessed basin to suspend precipitated solids when any of the submersible sewage pumps is activated, and wherein a high flow rate near the sump is self-cleaning.
9. The system of claim 1, wherein the cylinder is a fiber-wound fiberglass material to resist corrosion, tearing, and other damaging forces.
10. The system according to claim 1, further comprising clients corresponding to the integrated prefabricated pump stations respectively, wherein when the remote monitoring center determines that any one of the integrated prefabricated pump stations has abnormal operation, the remote monitoring center pushes early warning information to the client corresponding to the integrated prefabricated pump station in a grading manner in a preset communication mode; the client comprises a mobile terminal, a WEB terminal and a PC terminal; the preset communication modes comprise a short message mode, a voice information mode and an instant messaging software mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310992556.2A CN116856527A (en) | 2023-08-08 | 2023-08-08 | Integrated pump station system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310992556.2A CN116856527A (en) | 2023-08-08 | 2023-08-08 | Integrated pump station system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116856527A true CN116856527A (en) | 2023-10-10 |
Family
ID=88234201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310992556.2A Withdrawn CN116856527A (en) | 2023-08-08 | 2023-08-08 | Integrated pump station system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116856527A (en) |
-
2023
- 2023-08-08 CN CN202310992556.2A patent/CN116856527A/en not_active Withdrawn
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