CN112441192A - Pontoon type water taking pump station - Google Patents
Pontoon type water taking pump station Download PDFInfo
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- CN112441192A CN112441192A CN202011462168.6A CN202011462168A CN112441192A CN 112441192 A CN112441192 A CN 112441192A CN 202011462168 A CN202011462168 A CN 202011462168A CN 112441192 A CN112441192 A CN 112441192A
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- direct current
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 230000008859 change Effects 0.000 claims abstract description 18
- 230000009977 dual effect Effects 0.000 claims abstract description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 16
- 229910001416 lithium ion Inorganic materials 0.000 claims description 16
- 239000010813 municipal solid waste Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 description 9
- 238000004873 anchoring Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a pontoon type water taking pump station which comprises a mobile power supply, a dual-power variable frequency control cabinet, a variable frequency motor, a pump head, a vacuum generating device, a flowmeter and a pontoon. The portable power source, dual supply variable frequency control cabinet, inverter motor and pump head all set firmly on the deck of pontoon, the flowmeter is used for detecting the change of flow. The mobile power supply can provide direct current, the dual-power variable-frequency control cabinet can switch the direct current and the alternating current, and three-phase alternating current with required frequency is output to be used by the variable-frequency motor. The vacuum generating device is used for exhausting air in the pump before the pump is started and guiding water to irrigate the pump. The portable floating pontoon water taking pump station is convenient and flexible, has strong adaptability, can move at any time and is suitable for taking water in temporary rivers and lakes. The variable-frequency speed regulation pump is suitable for variable working condition occasions, and the performance of the pump is changed through speed change so as to adapt to the change of the device lift caused by liquid level change. And the double power supplies are adopted, so that the energy supply is more convenient.
Description
Technical Field
The invention relates to a water pump device, in particular to a pontoon type water taking pump station.
Background
With the wide application of pumps in the fields of industry, agriculture, municipal administration, breeding and the like, the use modes of the pumps are increasingly diversified, and fixed pump stations or pumps can not meet the requirements of water taking modes. When water is taken from lakes, rivers or ponds, the water level fluctuation slope is large, the fluctuation frequency is irregular, and randomness or instantaneity exists, so that a fixed pump station is not easy to construct; in addition, the irregularity of water level fluctuation and the large fluctuation amplitude determine the large working condition change of the pump, and a general pump station is difficult to or cannot adapt to and adjust the large working condition range; finally, the energy supply of the pump is also a problem, and three-phase alternating current cannot be easily obtained anywhere, so that even if a diesel engine is used as power, the high noise and the high pollution cannot be easily selected by a scheme maker, and the overlarge volume and the overlarge weight of the diesel engine are not suitable for boarding.
Disclosure of Invention
In order to solve the problems, the invention provides a floating boat type water taking pump station which can well solve the problems that the pump station in the prior art is difficult to construct, cannot adapt to variable working conditions, is difficult to obtain energy and the like.
In order to achieve the purpose, the invention adopts the technical scheme that:
a pontoon type water taking pump station comprises a mobile power supply, a dual-power variable frequency control cabinet, a variable frequency motor, a pump head, a vacuum generating device, a flowmeter and a pontoon, wherein the mobile power supply, the dual-power variable frequency control cabinet, the variable frequency motor and the pump head are all fixedly arranged on a deck of the pontoon, the pump head and the variable frequency motor are coaxially arranged and are connected through a coupler, an inlet and an outlet of the pump head are respectively connected with an L-shaped suction pipeline and an outlet pipeline, the flowmeter is arranged in a total water outlet pipe of the outlet pipeline, and the outlet pipeline is connected with the vacuum generating device through an air suction pipe; the floating vessel comprises 3 anchor rods for mooring the vessel, 2 trash racks, a deck, a protective cover and a motor rain cover, wherein the 3 anchor rods for mooring the vessel are vertically fixed on the deck, 2 of the anchor rods for mooring the vessel are arranged at the bow of the floating vessel, 1 of the anchor rods for mooring the vessel is arranged at the stern of the floating vessel, and 2 trash racks are arranged at one side of the floating vessel and surround the vertical section of the L-shaped suction pipeline;
the mobile power supply comprises a lithium ion battery pack and a battery management system, wherein the lithium ion battery pack is connected with the battery management system through a power line and a signal line; the dual-power variable-frequency control cabinet comprises a frequency converter, a PLC (programmable logic controller) and a dual-power switching device, wherein an alternating current input end of the frequency converter is connected with an alternating current output end of the dual-power switching device, an external direct current input terminal of the frequency converter is connected with a direct current output end of the dual-power switching device, and an alternating current output end of the frequency converter is connected with the variable-frequency motor through an output cable; the vacuum generating device comprises 2 vacuum pumps, a vacuum tank, an air suction pipe, an exhaust pipe and an electromagnetic valve arranged in the middle of the air suction pipe, wherein exhaust ports of the 2 vacuum pumps are connected in parallel through the exhaust pipe, and an air suction port of the vacuum pump is connected into the vacuum tank through a pipe; the L-shaped suction pipeline comprises a filter arranged at the inlet of the vertical section of the L-shaped suction pipeline, and the filter is submerged; the outlet pipeline comprises a main outlet pipe, a plurality of sleeve-shaped floating bodies and outlet branch pipes, the main outlet pipe is sleeved with the sleeve-shaped floating bodies, the right end of the main outlet pipe is connected with the 2 outlet branch pipes, and the main outlet pipe floats on the water surface through the sleeve-shaped floating bodies.
As a further improvement of the invention, the mooring anchor rod comprises a vertical rod, a hand wheel, an anchor rod seat and a fixed harrow head; the upright stanchion and the hand wheel are connected and driven through a pair of screw pairs, and the upright stanchion can be vertically lifted by rotating the hand wheel; the anchor rod seat is fixed on the deck, the hand wheel is connected with the anchor rod seat through a bearing, and the hand wheel is axially fixed but can freely rotate; the fixed harrow head is provided with a plurality of conical harrow nails on the bottom surface thereof so as to anchor the mooring anchor rod to the water bottom.
As a further improvement of the invention, the batteries in the lithium ion battery pack are grouped in series and parallel, the series number of the batteries depends on the voltage of the motor, and the parallel number of the batteries depends on the current of the motor; the battery management system comprises a current sensor, a voltage sensor and a temperature sensor and is used for monitoring the charging and discharging of the lithium ion battery pack and the battery state.
As a further improvement of the present invention, the frequency converter includes a rectification module, a filter circuit, an inverter module, and 2 external dc input terminals between the filter circuit and the inverter module, and the rectification module, the filter circuit, and the inverter module are sequentially connected from one end to the other end; and the alternating current output end of the inversion module is connected with the variable frequency motor through an output cable.
As a further improvement of the present invention, the dual power switching device includes an ac contactor, a dc contactor, a first intermediate relay moving contact, a second intermediate relay moving contact, an ac contactor coil, a dc contactor auxiliary moving contact, an ac contactor auxiliary moving contact, a first intermediate relay coil, a second intermediate relay coil, and a voltage sensor; the alternating current output end of the alternating current contactor is connected with the alternating current input end of the frequency converter through a cable, the alternating current input end of the alternating current contactor is connected with a three-phase alternating current power supply of a commercial power through a cable, the direct current output end of the direct current contactor is correspondingly connected with an external direct current input terminal of the frequency converter through a direct current cable according to positive and negative polarities, and the direct current input end of the direct current contactor is correspondingly connected with the direct current output end of the battery management system through a direct current cable according to positive and negative polarities; the dynamic break contact of the first intermediate relay, the alternating current contactor coil and the auxiliary dynamic break contact of the direct current contactor are sequentially connected from one end to the other end; the dynamic break contact of the second intermediate relay, the direct current contactor coil and the auxiliary dynamic break contact of the alternating current contactor are sequentially connected from one end to the other end; the direct current contactor auxiliary dynamic-breaking contact, the alternating current contactor auxiliary dynamic-breaking contact, the first intermediate relay coil and the second intermediate relay coil are provided with a common end; the input ends of the break contact of the first intermediate relay, the break contact of the second intermediate relay, the first intermediate relay coil and the second intermediate relay coil are connected with different digital input ports of the PLC; two input ends of the voltage sensor are respectively connected with a zero line and a live wire of a commercial power three-phase alternating current power supply, and two output ends of the voltage sensor are respectively connected with a public end and a certain port of an analog input port of the PLC.
As a further improvement of the invention, the performance of the pontoon type water intake pump station is regulated on the principle that the flow is not changed when the working condition is changed, and the performance regulation is realized by changing the output frequency of the frequency converter, thereby changing the rotating speed of the variable frequency motor and the pump head.
As a further improvement of the invention, the power of the variable frequency motor depends on the power which is the most unfavorable point when the working condition is changed.
As a further improvement of the invention, the protective cover and the motor rain cover are arranged on the deck, the protective cover covers the mobile power supply and the dual-power variable frequency control cabinet, the motor rain cover covers the variable frequency motor, and the protective cover and the motor rain cover play roles in dust prevention and rain prevention.
As a further improvement of the invention, the motor protection grade of the vacuum pump is IP 55.
As a further improvement of the invention, the electromagnetic valve is used for cutting off or connecting an exhaust passage, the working voltage of the electromagnetic valve is 24V, and the protection grade is IP 55.
Compared with the prior art, the invention has the beneficial effects that:
1. convenient and flexible, strong adaptability: the water taking pump station of the movable floating pontoon is movable at any time and is suitable for temporary water taking in rivers and lakes.
2. Is suitable for variable working condition occasions: the variable-frequency speed regulation is adopted, and the performance of the pump is changed through speed change so as to adapt to the change of the device lift caused by liquid level change.
3. Adopt dual supply, the drive energy supply of pump is more convenient: the double-power-supply variable-frequency control cabinet is adopted, a commercial power three-phase alternating-current power supply or a direct-current power supply powered by a lithium ion battery can be used according to the field condition, the automatic switching and automatic switching function is achieved, the direct-current power supply is used when no alternating-current power supply exists, the alternating-current power supply can be automatically switched to work when the alternating-current power supply is detected, and the alternating-current power supply can be switched to the direct-current power supply again when.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic top view of the present invention.
FIG. 3 is a schematic view of the measurement and control and power of the present invention.
Fig. 4 is a schematic view of the mooring anchor of the present invention.
Fig. 5 is a schematic circuit diagram of a frequency converter and a dual power switching device according to the present invention.
Fig. 6 is a wiring diagram of the PLC programmable controller of the present invention.
In the figure: 1. a mobile power supply, 2, a double-power-supply variable-frequency control cabinet, 3, a variable-frequency motor, 4, a pump head, 5, a vacuum generating device, 6, an L-shaped suction pipeline, 7, an outlet pipeline, 8, a flowmeter, 9, a floating pontoon, 10, a coupler, 11, a lithium ion battery pack, 12, a battery management system, 21, a frequency converter, 22, a PLC programmable controller, 23, a double-power-supply switching device, 51, an electromagnetic valve, 52, a vacuum pump, 53, a vacuum tank, 54, an air suction pipe, 55, an exhaust pipe, 61, a filter, 70, a total water outlet pipe, 71, a sleeve-shaped floating body, 72, a water outlet branch pipe, 91, a mooring anchor rod, 92, a trash rack, 93, a deck, 94, a protective cover, 95, a motor rain cover, 211, a rectifying module, 212, a filter circuit, 213, an inverter module, 214, an external direct current input terminal, 231, an alternating current contactor, 232, a direct current contactor, 234. the dynamic breaking contact of the second intermediate relay, 235, an alternating current contactor coil, 236, a direct current contactor coil, 237, an auxiliary dynamic breaking contact of the direct current contactor, 238, an auxiliary dynamic breaking contact of the alternating current contactor, 239, a first intermediate relay coil, 240, a second intermediate relay coil, 241, a voltage sensor, 911, a vertical rod, 912, a hand wheel, 913, an anchor rod seat, 914, a raking head, 9141 and a conical rake nail.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the mechanical connection can be welding, riveting, threaded connection, flange connection or the like; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, the present invention provides a floating-vessel type water intake pump station, which includes a mobile power supply 1, a dual-power variable frequency control cabinet 2, a variable frequency motor 3, a pump head 4, a vacuum generating device 5, a flow meter 8 and a floating vessel 9, wherein the mobile power supply 1, the dual-power variable frequency control cabinet 2, the variable frequency motor 3 and the pump head 4 are all fixed on a deck 93 of the floating vessel 9, the pump head 4 and the variable frequency motor 3 are coaxially arranged and connected through a coupling 10, an inlet and an outlet of the pump head 4 are respectively connected with an L-shaped suction pipeline 6 and an outlet pipeline 7, the flow meter 8 is arranged in a total water outlet pipe 70 of the outlet pipeline 7, and the flow meter 8 is used for metering total flow and feeding a flow signal. The outlet pipeline 7 is connected with the vacuum generating device 5 through the air suction pipe 54, and the vacuum generating device 5 is used for exhausting air in the pump head 4 and the pipeline so as to play a role of priming the pump. The pump heads 4 driven by the 2 variable frequency motors 3 are used and prepared, and when one pump fails, the other pump can be automatically put into use. The floating pontoon 9 comprises 3 anchor rods 91 for mooring the pontoon, 2 trash racks 92, a deck 93, a protective cover 94 and a motor rain cover 95, wherein the 3 anchor rods 91 for mooring the pontoon are vertically fixed on the deck 93, 2 anchor rods are arranged at the bow of the floating pontoon 9, 1 anchor rod is arranged at the stern of the floating pontoon 9, and according to the principle that three points determine one surface, the 3 anchor rods 91 for mooring the pontoon 9 can stabilize the floating pontoon 9 on the water surface and cannot swing along with water flow or waves, thereby being beneficial to the normal operation of equipment on the floating pontoon 9. The mooring anchor rod 91 is used for mooring the floating vessel 9 stably under the condition that the floating vessel 9 swings along with the cable after the anchor machine in the prior art is anchored in the case of high wind and wave, and has great advantages compared with anchoring. 2 trash racks 92 are provided on one side of the vessel 9 surrounding the vertical section of the L-shaped suction line 6, the trash racks 92 preventing large sized foreign objects from entering the L-shaped suction line 6.
The L-shaped suction pipeline 6 comprises a filter 61 arranged at the inlet of the vertical section of the L-shaped suction pipeline, the filter 61 is submerged, and the filter 61 can further filter out impurity impurities in the water so as to prevent the impurity impurities from being sucked to block the impeller and finally influence the normal operation of the pump. The outlet pipeline 7 comprises a main water outlet pipe 70, sleeve-shaped floating bodies 71 and water outlet branch pipes 72, wherein the sleeve-shaped floating bodies 71 are sleeved on the main water outlet pipe 70, and the right end of the main water outlet pipe 70 is connected with the 2 water outlet branch pipes 72. The sleeve-shaped floating bodies 71 are made of light materials with density much less than that of water so as to generate large buoyancy when immersed in water, and the total water outlet pipe 70 floats on the water surface through the plurality of sleeve-shaped floating bodies 71. Rain-proof cover 95 of protection casing 94 and motor is installed in deck 93, and protection casing 94 covers portable power source 1 and 2 cages of dual supply variable frequency control cabinet, and rain-proof cover 95 of motor covers inverter motor 3, and protection casing 94 and the rain-proof effect of covering 95 of motor play dustproof rain-proof.
The vacuum generator 5 includes 2 vacuum pumps 52, a vacuum tank 53, an air suction pipe 54, an exhaust pipe 55, and an electromagnetic valve 51 installed in the middle of the air suction pipe 54, the vacuum pumps 52 are used for generating vacuum, the exhaust ports of the 2 vacuum pumps 52 are connected in parallel by the exhaust pipe 55, and the air suction port of the vacuum pump 52 is connected to the vacuum tank 53 through a pipe. The vacuum pump 52 is rated IP55 for motor protection to facilitate protection from rain and dust. The electromagnetic valve 51 is used for cutting off or connecting an exhaust passage, the working voltage of the electromagnetic valve 51 is 24V, and the protection grade is IP 55. The during operation of vacuum generating device 5 can be at first opened through dual supply variable frequency control cabinet 2 control solenoid valve 51 to the pipe-line system of switch-on vacuum generating device 5 and pump station, then control starts a vacuum pump 52 work, until exhausting air in pump head 4 and the L shape suction line 6 and with water introduction pump priming (the outlet valve of pump head 4 closes in advance when exhausting), then close solenoid valve 51 again, at last by dual supply variable frequency control cabinet 2 control variable frequency motor 3 start, variable frequency motor 3 drives the pump head 4 work of being connected with it, treat that variable frequency motor 3 closes the outlet valve of pump after reaching normal rotational speed, this moment pontoon formula water intaking pump station drops into normal work. 2 vacuum pumps 52 are used one by one, and when one vacuum pump 52 fails, the other vacuum pump is automatically put into operation. During air exhaust, air in the pump head 4, the L-shaped suction pipeline 6 and the water outlet branch pipe 72 firstly enters the air suction pipe 54, then enters the vacuum tank 53, then enters the vacuum pump 52, and finally is exhausted to the atmosphere through the pipe orifice of the air exhaust pipe 55. The vacuum tank 53 having a certain volume plays a role of stabilizing the vacuum degree during the exhaust process so as to prevent the exhaust system from generating negative pressure fluctuation.
The mooring anchor rod 91 comprises an upright post 911, a hand wheel 912, an anchor rod seat 913 and a raking head 914, the upright post 911 and the hand wheel 912 are connected and driven through a pair of screw pairs, and the upright post 911 can be vertically lifted by rotating the hand wheel 912. The anchor rod holder 913 is fixed to the deck 93, the hand wheel 912 is connected to the anchor rod holder 913 through a bearing, and the hand wheel 912 is axially fixed but freely rotatable. The raking head 914 is provided with a plurality of tapered raker nails 9141 at its underside to facilitate anchoring of the mooring anchor 91 to the water bottom. When the liquid level rises or falls, the vertical rod 911 is extended or retracted by rotating the hand wheel 912, and the floating vessel 9 rises or falls along with the liquid level. The tapered spikes 9141 are made of a hard material to enhance wear resistance and extend their life.
When the liquid level rises or falls, the lift of the system device is reduced or increased, the output frequency of the frequency converter 21 is reduced or increased at the moment, the rotating speed of the variable frequency motor 3 is also reduced or increased according to the characteristic that the rotating speed of the variable frequency motor 3 is in direct proportion to the power frequency, the performance curve of the pump head 4 synchronously rotating with the variable frequency motor 3 is also translated downwards or upwards, and the performance of the pump head 4 is matched with the system device again. The adjustment of the performance of the pontoon type water taking pump station under the variable working condition takes the flow unchanged as the principle, and the performance adjustment is realized by changing the output frequency of the frequency converter 21 so as to change the rotating speed of the variable frequency motor 3 and the pump head 4. The power of the variable frequency motor 3 depends on the power of the most unfavorable point in the variable working condition, and the power is reserved with margin to adapt to the performance change in a larger range.
The mobile power supply 1 comprises a lithium ion battery pack 11 and a battery management system 12, wherein the lithium ion battery pack 11 is connected with the battery management system 12 through a power line and a signal line, the power line is a transmission line of a direct current power supply, and the signal line is used for transmitting signals of a temperature sensor and a current and voltage sensor which are arranged on the lithium ion battery pack 11. The dual-power variable frequency control cabinet 2 comprises a frequency converter 21, a PLC (programmable logic controller) 22 and a dual-power switching device 23, wherein an alternating current input end E9 of the frequency converter 21 is connected with an alternating current output end E8 of the dual-power switching device 23, an external direct current input terminal 214 of the frequency converter 21 is connected with a direct current output end E10 of the dual-power switching device 23, and an alternating current output end E2 of the frequency converter 21 is connected with the variable frequency motor 3 through an output cable.
The batteries in the lithium ion battery pack 11 are grouped in series and parallel, the series number of the batteries depends on the voltage of the variable frequency motor 3, and the parallel number of the batteries depends on the current of the variable frequency motor 3; the battery management system 12 includes a current sensor, a voltage sensor, and a temperature sensor, and monitors the charging and discharging of the lithium ion battery pack 11 and the battery status.
As shown in fig. 5 to 6, the frequency converter 21 includes a rectifying module 211, a filter circuit 212, an inverter module 213, and 2 external dc input terminals 214 between the filter circuit 212 and the inverter module 213, the rectifying module 211, the filter circuit 212, and the inverter module 213 are connected in sequence from one end to the other end, and an ac output end E2 of the inverter module 213 is connected to the inverter motor 3 through an output cable.
The dual power source switching device 23 includes an ac contactor 231, a dc contactor 232, an active contact 233 of a first intermediate relay, an active contact 234 of a second intermediate relay, an ac contactor coil 235, a dc contactor coil 236, a dc contactor auxiliary active contact 237, an ac contactor auxiliary active contact 238, a first intermediate relay coil 239, a second intermediate relay coil 240, and a voltage sensor 241. The ac output end E8 of the ac contactor 231 is connected to the ac input end E9 of the inverter 21 via a cable, the ac input end E1 of the ac contactor 231 is connected to the commercial three-phase ac power supply (L1, L2, L3) via a cable, the dc output end E10 of the dc contactor 232 is connected to the external dc input terminal 214 of the inverter 21 via a dc cable in a positive-negative polarity-dependent manner, and the dc input end E3 of the dc contactor 232 is connected to the dc output end of the battery management system 12 via a dc cable in a positive-negative polarity-dependent manner. The break contact 233, the ac contactor coil 235, and the dc contactor auxiliary break contact 237 of the first intermediate relay are connected in this order from one end to the other end. The second intermediate relay's break contact 234, dc contactor coil 236 and ac contactor auxiliary break contact 238 are connected in sequence from one end to the other. The dc contactor auxiliary trip contact 237, the ac contactor auxiliary trip contact 238, the first intermediate relay coil 239 and the second intermediate relay coil 240 have a common terminal E11, and the common terminal E11 is connected to the digital output common port DIG of the PLC programmable controller 22. The input terminals E4, E5, E6 and E7 of the first intermediate relay's snap-off contact 233, the second intermediate relay's snap-off contact 234, the first intermediate relay coil 239 and the second intermediate relay coil 240 are connected to digital output ports DI0, DI1, DI2 and DI3 of the PLC programmable controller 22, respectively. Two input ends of the voltage sensor 241 are respectively connected with a zero line N and a one-phase live line L3 of a commercial three-phase alternating-current power supply, and two output ends B1 and B2 are respectively connected with a common end AIG and a port AI0 of an analog input port of the PLC programmable controller 22.
The 24V control power supply of the dual-power variable frequency control cabinet 2 is supplied by the low-voltage control direct-current power supply output end of the battery management system 12 and comprises power supply for the PLC 22, the first intermediate relay coil 139, the second intermediate relay coil 240 and the electromagnetic valve 51.
When only a direct current power supply supplies power, the alternating current input end E1 of the alternating current contactor 231 has no voltage input (three phases L1, L2 and L3 have no voltage), the input voltage of the input end (L3 and N) of the voltage sensor 241 is zero, the analog signal voltages of the output ends B1 and B2 of the voltage sensor 241 are zero, that is, the input signals of the common end AIG and the port AI0 of the analog input port of the PLC programmable controller 22 are zero, at this time, the PLC programmable controller 22 controls the DIG, the DI0 and the DI3 to output a low level according to a preset program, controls the DI1 and the DI2 to output a high level, that is, the E11, the E4 and the E7 all input a low level, and the E5 and the E6 all input a high level. Thus, no current flows through the ac contactor coil 235 and the second intermediate relay coil 240, the contacts of the ac contactor 231 are in the open state, the break contact 234 of the second intermediate relay is in the closed state, and the ac contactor auxiliary break contact 238 is in the closed state; when current flows through the dc contactor coil 236 and the first intermediate relay coil 239, the contact of the dc contactor 232 is closed, and the break contact 233 of the first intermediate relay and the dc contactor auxiliary break contact 237 are in an open state, thereby ensuring that the ac contactor coil 235 is not energized. Because the coil 236 of the dc contactor is energized, the contact of the dc contactor 232 is closed, the dc power is input to the inverter module 213 through the external dc input terminal 214, and the inverter module 213 inverts the dc power to output a three-phase ac power with a certain frequency.
When an alternating current power supply supplies power, an alternating current input end E1 of the alternating current contactor has mains voltage input (three phases of L1, L2 and L3 have voltages), the input voltage of an input end (L3 and N) of the voltage sensor 241 is 220V, the analog signal voltages of output ends B1 and B2 of the voltage sensor 241 are not zero, namely the input signals of a common end AIG and a port AI0 of an analog input port of the PLC 22 are not zero, at the moment, the PLC 22 controls DIG, DI1 and DI2 to output low levels according to a preset program, and controls DI0 and DI3 to output high levels, namely E11, E5 and E6 input low levels, and E4 and E7 input high levels. Therefore, no current flows through the dc contactor coil 236 and the first intermediate relay coil 239, the contacts of the dc contactor 232 are in an open state, the break contact 233 of the first intermediate relay is in a closed state, and the dc contactor auxiliary break contact 237 is in a closed state; when current flows through the ac contactor coil 235 and the second intermediate relay coil 240, the contacts of the ac contactor 231 are closed, and the break contact 234 of the second intermediate relay and the ac contactor auxiliary break contact 238 are opened, thereby ensuring that the dc contactor coil 236 is not energized. Because the coil 235 of the ac contactor is energized, the contacts of the ac contactor 231 are closed, the ac power is input to the rectifying module 211 via the input terminal E9 of the frequency converter 21 and is rectified into pulsating dc power, and then is filtered by the filter circuit 212 to become dc power, and finally is inverted by the inverting module 213 to output three-phase ac power with a certain frequency.
The working principle of the invention is as follows: after the liquid level changes, the vertical rod 911 can be stably anchored to the water bottom by adjusting the hand wheel 912 of the mooring anchor rod 91. When the liquid level rises or falls, the lift of the system device is reduced or increased, at the moment, the flow of the water taking pump station can be increased or reduced, at the moment, the flowmeter 8 arranged on the main water outlet pipe 70 can transmit a flow change signal to the PLC 22, the PLC 22 controls the frequency converter 21 to change the frequency according to a preset program, the output frequency of the frequency converter 21 can be reduced or increased, according to the characteristic that the rotating speed of the variable frequency motor 3 is in direct proportion to the power frequency, the rotating speed of the variable frequency motor 3 can be reduced or increased, the performance curve of the pump head 4 rotating synchronously with the variable frequency motor 3 can be translated downwards or upwards, the flow of the water taking pump station can be reduced or increased until the preset flow is reached (namely the flow is kept unchanged), at the moment, the output frequency of the frequency converter 21 can not be changed any more, and the performance of the pump head can be. The adjustment of the performance of the pontoon type water taking pump station under the variable working condition takes the flow unchanged as the principle, and the performance adjustment is realized by changing the output frequency of the frequency converter 21 so as to change the rotating speed of the variable frequency motor 3 and the pump head 4. The power of the variable frequency motor 3 depends on the power of the most unfavorable point in the variable working condition, and the power is reserved with margin to adapt to the performance change in a larger range.
Compared with the pump station in the prior art, the floating boat type water taking pump station has remarkable advantages.
1) Convenient and flexible, strong adaptability: the water taking pump station of the movable floating pontoon is movable at any time and is suitable for temporary water taking in rivers and lakes. Mooring anchor 91 will stabilize vessel 9 on the water surface and will not swing with the water flow or waves, facilitating the normal operation of the equipment on vessel 9. The mooring anchor rod 91 is used for mooring the floating vessel 9 stably under the condition that the floating vessel swings along with the mooring rope after the anchoring machine in the prior art is anchored in the case of high wind and wave, and has great advantages compared with anchoring. The protective cover 94 and the motor rain cover 95 can protect the equipment from wind, sunlight and rain.
2) Is suitable for variable working condition occasions: the variable-frequency speed regulation is adopted, and the performance of the pump is changed through speed change so as to adapt to the change of the device lift caused by liquid level change.
3) Adopt dual supply, the drive energy supply of pump is more convenient: adopt dual supply variable frequency control cabinet 2, can use the DC power supply of commercial power three-phase AC power supply or lithium ion battery power supply according to the on-the-spot condition, have the function of autotomy and haulage, use DC power supply when not having AC power supply, can automatic switch to AC power supply work when detecting there is AC power supply, AC power supply loses the power and again switches to DC power supply.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a pontoon formula water intaking pump station which characterized in that: the floating type vacuum pump comprises a mobile power supply, a dual-power variable-frequency control cabinet, a variable-frequency motor, a pump head, a vacuum generating device, a flowmeter and a floating pontoon, wherein the mobile power supply, the dual-power variable-frequency control cabinet, the variable-frequency motor and the pump head are all fixedly arranged on a deck of the floating pontoon, the pump head and the variable-frequency motor are coaxially arranged and are connected through a coupler, an inlet and an outlet of the pump head are respectively connected with an L-shaped suction pipeline and an outlet pipeline, the flowmeter is arranged in a main water outlet pipe of the outlet pipeline, and the outlet pipeline is connected with the vacuum; the floating vessel comprises 3 anchor rods for mooring the vessel, 2 trash racks, a deck, a protective cover and a motor rain cover, wherein the 3 anchor rods for mooring the vessel are vertically fixed on the deck, 2 of the anchor rods for mooring the vessel are arranged at the bow of the floating vessel, 1 of the anchor rods for mooring the vessel is arranged at the stern of the floating vessel, and 2 trash racks are arranged at one side of the floating vessel and surround the vertical section of the L-shaped suction pipeline;
the mobile power supply comprises a lithium ion battery pack and a battery management system, wherein the lithium ion battery pack is connected with the battery management system through a power line and a signal line; the dual-power variable-frequency control cabinet comprises a frequency converter, a PLC (programmable logic controller) and a dual-power switching device, wherein an alternating current input end of the frequency converter is connected with an alternating current output end of the dual-power switching device, an external direct current input terminal of the frequency converter is connected with a direct current output end of the dual-power switching device, and an alternating current output end of the frequency converter is connected with the variable-frequency motor through an output cable; the vacuum generating device comprises 2 vacuum pumps, a vacuum tank, an air suction pipe, an exhaust pipe and an electromagnetic valve arranged in the middle of the air suction pipe, wherein exhaust ports of the 2 vacuum pumps are connected in parallel through the exhaust pipe, and an air suction port of the vacuum pump is connected into the vacuum tank through a pipe; the L-shaped suction pipeline comprises a filter arranged at the inlet of the vertical section of the L-shaped suction pipeline, and the filter is submerged; the outlet pipeline comprises a main outlet pipe, a plurality of sleeve-shaped floating bodies and outlet branch pipes, the main outlet pipe is sleeved with the sleeve-shaped floating bodies, the right end of the main outlet pipe is connected with the 2 outlet branch pipes, and the main outlet pipe floats on the water surface through the sleeve-shaped floating bodies.
2. The pontoon-type water intake pump station according to claim 1, characterized in that: the mooring anchor rod comprises a vertical rod, a hand wheel, an anchor rod seat and a raking head; the upright stanchion and the hand wheel are connected and driven through a pair of screw pairs, and the upright stanchion can be vertically lifted by rotating the hand wheel; the anchor rod seat is fixed on the deck, the hand wheel is connected with the anchor rod seat through a bearing, and the hand wheel is axially fixed but can freely rotate; the fixed harrow head is provided with a plurality of conical harrow nails on the bottom surface thereof so as to anchor the mooring anchor rod to the water bottom.
3. The pontoon-type water intake pump station according to claim 1, characterized in that: the batteries in the lithium ion battery pack are grouped in series and parallel, the series quantity of the batteries depends on the voltage of the motor, and the parallel quantity of the batteries depends on the current of the motor; the battery management system comprises a current sensor, a voltage sensor and a temperature sensor and is used for monitoring the charging and discharging of the lithium ion battery pack and the battery state.
4. The pontoon-type water intake pump station according to claim 1, characterized in that: the frequency converter comprises a rectifying module, a filter circuit, an inverter module and 2 external direct current input terminals between the filter circuit and the inverter module, wherein the rectifying module, the filter circuit and the inverter module are sequentially connected from one end to the other end; and the alternating current output end of the inversion module is connected with the variable frequency motor through an output cable.
5. The pontoon-type water intake pump station according to claim 1 or 4, characterized in that: the dual-power switching device comprises an alternating current contactor, a direct current contactor, a break contact of a first intermediate relay, a break contact of a second intermediate relay, an alternating current contactor coil, a direct current contactor auxiliary break contact, an alternating current contactor auxiliary break contact, a first intermediate relay coil, a second intermediate relay coil and a voltage sensor; the alternating current output end of the alternating current contactor is connected with the alternating current input end of the frequency converter through a cable, the alternating current input end of the alternating current contactor is connected with a three-phase alternating current power supply of a commercial power through a cable, the direct current output end of the direct current contactor is correspondingly connected with an external direct current input terminal of the frequency converter through a direct current cable according to positive and negative polarities, and the direct current input end of the direct current contactor is correspondingly connected with the direct current output end of the battery management system through a direct current cable according to positive and negative polarities; the dynamic break contact of the first intermediate relay, the alternating current contactor coil and the auxiliary dynamic break contact of the direct current contactor are sequentially connected from one end to the other end; the dynamic break contact of the second intermediate relay, the direct current contactor coil and the auxiliary dynamic break contact of the alternating current contactor are sequentially connected from one end to the other end; the direct current contactor auxiliary dynamic-breaking contact, the alternating current contactor auxiliary dynamic-breaking contact, the first intermediate relay coil and the second intermediate relay coil are provided with a common end; the input ends of the break contact of the first intermediate relay, the break contact of the second intermediate relay, the first intermediate relay coil and the second intermediate relay coil are connected with different digital input ports of the PLC; two input ends of the voltage sensor are respectively connected with a zero line and a live wire of a commercial power three-phase alternating current power supply, and two output ends of the voltage sensor are respectively connected with a public end and a certain port of an analog input port of the PLC.
6. The pontoon-type water intake pump station according to claim 1, characterized in that: the performance of the pontoon type water taking pump station is adjusted on the principle that the flow is unchanged when the working condition is changed, and the performance adjustment is realized by changing the output frequency of the frequency converter so as to change the rotating speed of the variable frequency motor and the pump head.
7. The pontoon-type water intake pump station according to claim 1, characterized in that: the power of the variable frequency motor depends on the power of the most unfavorable point in variable working conditions.
8. The pontoon-type water intake pump station according to claim 1, characterized in that: the protection casing and the motor rain-proof cover install in the deck, the protection casing will portable power source and dual supply variable frequency control cabinet cover, the motor rain-proof cover will variable frequency motor covers, protection casing and motor rain-proof cover play dustproof rainproof effect.
9. The pontoon-type water intake pump station according to claim 1, characterized in that: the motor protection grade of the vacuum pump is IP 55.
10. The pontoon-type water intake pump station according to claim 1, characterized in that: the electromagnetic valve is used for cutting off or connecting an exhaust passage, the working voltage of the electromagnetic valve is 24V, and the protection grade is IP 55.
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| CN202011462168.6A CN112441192B (en) | 2020-12-12 | 2020-12-12 | Floating boat type water taking pump station |
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| CN202011462168.6A CN112441192B (en) | 2020-12-12 | 2020-12-12 | Floating boat type water taking pump station |
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Cited By (3)
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| CN113606126A (en) * | 2021-07-05 | 2021-11-05 | 朱晓锋 | Double-pump fluid pumping pump |
| CN114992118A (en) * | 2022-07-20 | 2022-09-02 | 安徽省农业科学院农业工程研究所 | A energy-conserving water pump for agricultural intelligence water-saving irrigation is planted |
| CN118083032A (en) * | 2024-04-28 | 2024-05-28 | 江苏中兴水务有限公司 | Self-positioning flexible connection water taking pump ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606126A (en) * | 2021-07-05 | 2021-11-05 | 朱晓锋 | Double-pump fluid pumping pump |
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| CN114992118A (en) * | 2022-07-20 | 2022-09-02 | 安徽省农业科学院农业工程研究所 | A energy-conserving water pump for agricultural intelligence water-saving irrigation is planted |
| CN118083032A (en) * | 2024-04-28 | 2024-05-28 | 江苏中兴水务有限公司 | Self-positioning flexible connection water taking pump ship |
| CN118083032B (en) * | 2024-04-28 | 2024-07-19 | 江苏中兴水务有限公司 | Self-positioning flexible connection water taking pump ship |
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