CN105484989A - Improved automatic pressure regulating water pump - Google Patents
Improved automatic pressure regulating water pump Download PDFInfo
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- CN105484989A CN105484989A CN201510802172.5A CN201510802172A CN105484989A CN 105484989 A CN105484989 A CN 105484989A CN 201510802172 A CN201510802172 A CN 201510802172A CN 105484989 A CN105484989 A CN 105484989A
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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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- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides an improved automatic pressure regulating water pump and belongs to the technical field of machinery. The low pressure regulating precision problem of the existing automatic pressure regulating water pump is solved. The improved automatic pressure regulating water pump comprises a water pump, a sensing assembly and a control panel, wherein a water inlet and a water outlet, communicating, are respectively formed in the two ends of the water pump; the sensing assembly is mounted on the water pump and can sense the pressure value and the flow value of liquid in the water pump; the water pump and the sensing assembly are respectively electrically connected with the control panel; the pressure value and the flow value in the water pump can be converted to electric signals and fed back to the control panel by the sensing assembly, and the control panel can start or stop the water pump through the electric signals; a control circuit is arranged on the control panel; and the control circuit comprises a first signal input module, a second signal input module, a signal processing module and a signal output module and further comprises a positive electrode voltage input end and a negative electrode voltage input end. The improved automatic pressure regulating water pump has the advantages of being convenient to regulate pressure and being high in pressure regulating precision.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of automatic Regulation water pump of improvement.
Background technique
Water pump is conveying liquid or the machinery making fluid pressurization.It sends mechanical energy or other external energies to liquid, liquid energy is increased, be mainly used to carry liquid, Ru Shui, oil, acid & alkali liquid, emulsified liquid, suspended emulsion and liquid metal etc., also can carry liquid, gaseous mixture and the liquid containing suspended solids.The technical parameter weighing pump performance has flow, inhales journey, lift, air horsepower, water-horse power, efficiency etc.
Water pump in use needs to carry out accommodation according to actual service condition to the flow of water pump, existing water pump generally manually regulates the size of water pump upper spring pressure, change force value and the flow value of liquid in water pump, the energy-saving pump with regulator as a kind of in Chinese patent (202811396U), comprise water pump, described water pump is provided with import and outlet, it is characterized in that: described outlet is connected with regulator; Described regulator comprises the conduit with described outlet, at least two water-stop sheets are provided with in described conduit, the axis being parallel of described water-stop sheet and described conduit, described conduit and described outlet place are provided with boost pressure regulation plate, described boost pressure regulation plate inserts in described water-stop sheet, and the side of described boost pressure regulation plate matches with the internal surface of described conduit, outlet.The program, in pressure regulation process, can carry out manual tune to the flow of the water in pipe network by regulator, makes the water in pipe network to keep dynamic hydraulic equilibrium, ensures that water pump is unanimously in optimal operational condition, improves the operational efficiency of water pump.
But the adjustment of above-mentioned water pump of the prior art exists following technological deficiency: 1, this technological scheme needs operator by working experience manual tune, reduce testing pump to the target flow time, also reduce the precision of testing pump simultaneously; 2, operator can not hydraulic pressure in direct vision pipe network in adjustment process for the program, causes operator to use inconvenience.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the automatic Regulation water pump of the improvement that a kind of pressure regulation is convenient, regulation precision is high.
Object of the present invention realizes by following technical proposal: a kind of automatic Regulation water pump of improvement, comprising:
Water pump, its two ends are respectively arranged with the water intake and water outlet that communicate;
Inductive component, it is installed on water pump, and can respond to force value and the flow value of liquid in water pump;
Control panel, it is electrically connected with water pump and inductive component respectively;
Force value in water pump and flow value can be converted into electrical signal and feedback control panel by inductive component, and control panel makes water pump open by this electrical signal or closes;
Be provided with control circuit on the control panel, described control circuit comprises: the first signal input module, for the input of control signal, comprise the first signal input part V1, the first operational amplifier U1 and the second operational amplifier U2, the first signal input module has amplification to control signal; Secondary signal load module, for the input of control signal, comprise secondary signal input end V2V2, the 3rd operational amplifier U3, secondary signal load module has amplification to signal; Signal processing module, comprises signal processing chip, for comparing control signal and processing; Signal output module, for the control signal after output processing, comprises four-operational amplifier U4; Described control circuit also comprises cathode voltage input end, cathode voltage input end.
In the automatic Regulation water pump of above-mentioned a kind of improvement, described first signal input module also comprises: the first resistance R1 is to the 8th resistance R8, first electric capacity C1 is to the 6th electric capacity C6, first diode D1, described first signal input part V1 connects the normal phase input end of the first operational amplifier U1 after the first resistance R1, and described first signal input part V1 is also through the first resistance R1 ground connection after the first electric capacity C1; The output terminal of described first operational amplifier U1 connects the inverting input of the second operational amplifier U2 after the second resistance R2, and the output terminal of described first operational amplifier U1 also connects the inverting input of the first operational amplifier U1; The first parallel circuit is formed after in parallel with the second electric capacity C2, the 3rd electric capacity C3, the first diode D1 after described 3rd resistance R3 and the 4th resistance R4 connect, the negative electrode of described first diode D1 connects the normal phase input end of the second operational amplifier U2, the plus earth of the first diode D1, normal phase input end ground connection after the 5th resistance R5 of described second operational amplifier U2; The inverting input of described second operational amplifier U2 connects the output terminal of the second operational amplifier U2 after the 6th resistance R6, the 5th electric capacity C5, and the inverting input of the second operational amplifier U2 connects the output terminal of the second operational amplifier U2 after the 4th electric capacity C4; Output terminal ground connection after the second parallel circuit that the 8th resistance R8 and the 6th electric capacity C6 parallel connection is formed of described second operational amplifier U2, the output terminal of described second operational amplifier U2 also connects cathode voltage input end after the 7th resistance R7; The output terminal of described second operational amplifier U2 also connects signal processing chip.
In the automatic Regulation water pump of above-mentioned a kind of improvement, described signal processing module also comprises the 3rd signal input part V3,9th resistance R9 is to the 11 resistance R11,7th electric capacity C7 is to the 11 electric capacity C11, described signal processing chip comprises first interface to the 8th interface, the second interface of described signal processing chip, the 4th interface, the 8th interface all ground connection; The first interface of described signal processing chip connects the output terminal of the second operational amplifier U2,3rd interface of signal processing chip is through the 7th electric capacity C7, ground connection after the 3rd parallel circuit that 8th electric capacity C8 parallel connection is formed, the 3rd interface of described signal processing chip also connects cathode voltage input end; 7th interface of described signal processing chip meets the 3rd signal input part V3 after the 9th resistance R9, and described 3rd signal input part V3 is ground connection after the 9th resistance R9, the 9th electric capacity C9; 6th interface of described signal processing chip through the tenth electric capacity C10, the 11 electric capacity C11 parallel connection form the 4th parallel circuit after ground connection, described 6th interface also connects cathode voltage input end; 5th interface of described signal processing chip connects signal output module after the tenth resistance R10, the 5th interface also ground connection after the tenth resistance R10, the 11 resistance R11 of described signal processing chip.
In the automatic Regulation water pump of above-mentioned a kind of improvement, described secondary signal load module also comprises: the 12 resistance R12 is to the 16 resistance R16, described 12 electric capacity C12 is to the 13 electric capacity C13, described secondary signal input end V2 connects the inverting input of the 3rd signal amplifier U3 after the 12 resistance R12, the 13 resistance R13, and secondary signal input end V2 ground connection after the 12 resistance R12, the 12 electric capacity C12; Normal phase input end ground connection after the 14 resistance R14 of described 3rd operational amplifier U3; The inverting input of the 3rd operational amplifier U3 is connected after the 5th parallel circuit that the output terminal of described 3rd operational amplifier is formed after the 15 resistance R15 is in parallel with the 13 electric capacity C13; The output terminal of described 3rd operational amplifier U3 connects signal output module.
In the automatic Regulation water pump of above-mentioned a kind of improvement, signal output module also comprises: signal output part T1,17 resistance R17 is to the 19 resistance R19,14 electric capacity C14 is to the 15 electric capacity C15, and the normal phase input end of described four-operational amplifier U4 connects signal processing module after the 17 resistance R17; The inverting input of described four-operational amplifier U4 connects secondary signal load module, the inverting input of described four-operational amplifier U4 connects the output terminal of four-operational amplifier U4 after the 14 electric capacity C14, and the output terminal of four-operational amplifier U4 connects signal output part T1 after the 19 resistance R19; After described 18 resistance R18, the 15 electric capacity C15 connect successively, be parallel to the two ends of the inverting input of four-operational amplifier U4 and the output terminal of four-operational amplifier U4.
In the automatic Regulation water pump of above-mentioned a kind of improvement, described signal processing chip is AD633 chip.
In the automatic Regulation water pump of above-mentioned a kind of improvement, described inductive component comprises mounting cover, mounting plate and sensor, the outer surface of water pump offers mounting groove, described mounting cover is covered on mounting groove, mounting plate is provided with between mounting cover and mounting groove, described sensor setting is on mounting plate, and sensor can respond to force value and the flow value of liquid in water pump.
In the automatic Regulation water pump of above-mentioned a kind of improvement, at the two ends of water pump, water inlet connection and water outlet joint are set respectively, described water inlet connection communicates with water intake, described water outlet joint communicates with water outlet, safety check is provided with between water inlet connection and water outlet joint, the front end of described safety check is connected with water inlet connection, and the rear end of safety check is connected with water outlet joint, and is provided with elastic component between safety check and water outlet joint.
In the automatic Regulation water pump of above-mentioned a kind of improvement, water pump offers the through hole running through water pump sidewall, safety check offers the mounting platform corresponding with through hole, mounting platform is provided with float, the upper end of described float is stretched out through hole and is connected with sensor, and described float can along the slippage of through hole in the vertical direction.
In the automatic Regulation water pump of above-mentioned a kind of improvement, described controller comprises control panel, circuit board and base, and described control panel is arranged on base, and described circuit board is between control panel and base, and described sensor is connected with circuit board.
Compared with prior art, the present invention includes water pump, inductive component and control panel, inductive component and control panel are all installed on water pump, and the force value of the liquid in water pump and flow value can be converted into electrical signal and be passed to control panel by inductive component, control panel can make starting mode of pump or stopping according to the electrical signal detected, the force value in water pump is maintained within a certain range; Operator changes starting mode of pump by control panel or stops force value simultaneously, expands using scope of the present invention, improves regulation precision of the present invention.
Accompanying drawing explanation
fig. 1it is blast of the present invention signal
figure.
fig. 2it is the structural representation of a preferred embodiment of the present invention middle controller
figure.
fig. 3 is the control circuit figure of a preferred embodiment of the present invention middle controller.
in figure, 100, water pump; 110, water intake; 111, water inlet connection; 120, water outlet; 121, water outlet joint; 130, safety check; 131, mounting platform; 140, spring; 200, mounting cover; 210, mounting plate; 220, sensor; 300, float; 400, control panel; 410, circuit board; 420, base.
Embodiment
Below be specific embodiments of the invention and combine
accompanying drawing, technological scheme of the present invention is further described, but the present invention is not limited to these embodiments.
as Fig. 1with
fig. 2shown in, the automatic Regulation water pump 100 of this improvement comprises:
Water pump 100, its two ends are respectively arranged with the water intake 110 and water outlet 120 that communicate;
Inductive component, it is installed on water pump 100, and can respond to force value and the flow value of liquid in water pump 100;
Control panel 400, it is electrically connected with water pump 100 and inductive component respectively;
Force value in water pump 100 and flow value can be converted into electrical signal and feedback control panel 400 by inductive component, and control panel 400 makes water pump 100 open or close by this electrical signal.
In the process used, force value in water pump 100 and uninterrupted can be converted into electrical signal transfer to control panel 400 by inductive component, operator can arrange CLV ceiling limit value and the lower limit of fluid pressure on control panel 400 simultaneously, when inductive component detects that the force value of liquid reaches CLV ceiling limit value, control panel 400 can stop water pump 100, water pump 100 is made to stop pressurized liquid, the force value avoiding liquid is too high and affect the normal work of equipment, when inductive component detects that the force value of liquid is less than lower limit, control panel 400 can restart water pump 100, make the liquid that water pump 100 continues in booster water pump 100, avoid the force value of liquid too small and affect the normal transport of liquid.
Above-mentioned inductive component comprises mounting cover 200, mounting plate 210 and sensor 220, the excircle of water pump 100 offers mounting groove, mounting cover 200 covers on mounting groove by bolt, mounting cover 200 is made firmly to be arranged on water pump 100, and avoid introduced contaminants or sewage to fall into the liquid polluted in water pump 100 to water pump 100, mounting plate 210 is provided with between mounting cover 200 and mounting groove, sensor 220 is arranged on mounting plate 210, sensor 220 can respond to force value and the flow value of liquid in water pump 100, and the force value of liquid and flow value are converted into electrical signal transfer to controller, the controller being can be monitored in real time to the force value of the liquid in water pump 100 and flow value.
Water intake 110 and water outlet 120 are respectively arranged with water supply connector and water output connector, in use, pipeline in official website can be installed on water supply connector and water output connector respectively, facilitate the installation of water pump 100, safety check 130 is provided with between water supply connector and water output connector, the liquid in water pump 100 is made to carry out one-way conduction, avoid the generation of liquid countercurrent phenomenon, improve the Security of the use of water pump 100, the front end of safety check 130 is connected with water inlet connection 111, elastic component is provided with between the rear end of safety check 130 and water outlet joint 121, the two ends of elastic component are resisted against on water output connector and one-way valve respectively, the setting of elastic component makes one-way valve when water pump 100 starts or stops, buffering is played to safety check 130, avoid the generation of the phenomenon that safety check 130 is damaged due to the pressure increased suddenly, improve the working life of safety check 130.
Preferably, above-mentioned elastic component is spring 140, the shape of spring 140 is pagoda shape, and the diameter near safety check 130 side is greater than the diameter near water outlet joint 121 side, expand the area of contact of spring 140 and safety check 130, improve the buffer function of spring 140 pairs of safety check 130, improve the working life of safety check 130.
Water pump 100 offers the through hole running through water pump 100 sidewall, safety check 130 offers the mounting platform 131 corresponding with through hole, mounting platform 131 is provided with float 300, the upper end of float 300 is stretched out mounting hole and is stretched out through hole and be connected with sensor 220, in use, when in water pump 100, the force value of liquid can back down safety check 130, make between safety check 130 and water outlet joint 121, to there is the gap that liquid can be made to pass through, thus float 300 and mounting platform 131 misplace, and float 300 can be subjected to displacement along through hole in the axial direction along with the force value of liquid in water pump 100 and the change of flow value, contact simultaneously between float 300 and sensor 220 can change along with the change of the shift length of float 300, thus sensor 220 can transmit different electrical signal to controller according to the size of contact value, controller controls water pump 100 by different electrical signal.
Preferably, above-mentioned controller comprises control panel 400, circuit board 410 and base 420, control panel 400 is arranged on base 420, circuit board 410 is between control panel 400 and base 420, sensitive switch is all connected with circuit board 410 with sensor 220, the electrical signal that controller can feed back according to sensitive switch and sensor 220 and control water pump 100 and start or stop, when in water pump 100, the force value of liquid is greater than default CLV ceiling limit value, controller can make water pump 100 stop pressurized liquid, when liquid in water pump 100 be less than default lower limit time, controller can make water pump 100 restart and continue pressurized liquid, the force value of the liquid in water pump 100 is controlled within the specific limits, the equipment of ensure that can normally work.
as Fig. 3shown in, this control circuit comprises: the first signal input module, and for the input of control signal, comprise the first signal input part V1, the first operational amplifier U1 and the second operational amplifier U2, the first signal input module has amplification to control signal; Secondary signal load module, for the input of control signal, comprise secondary signal input end V2V2, the 3rd operational amplifier U3, secondary signal load module has amplification to signal; Signal processing module, comprises signal processing chip, for comparing control signal and processing; Signal output module, for the control signal after output processing, comprises four-operational amplifier U4; Described control circuit also comprises cathode voltage input end, cathode voltage input end.
Above-mentioned first signal input module also comprises: the first resistance R1 is to the 8th resistance R8, first electric capacity C1 is to the 6th electric capacity C6, first diode D1, described first signal input part V1 connects the normal phase input end of the first operational amplifier U1 after the first resistance R1, and described first signal input part V1 is also through the first resistance R1 ground connection after the first electric capacity C1; The output terminal of described first operational amplifier U1 connects the inverting input of the second operational amplifier U2 after the second resistance R2, and the output terminal of described first operational amplifier U1 also connects the inverting input of the first operational amplifier U1; The first parallel circuit is formed after in parallel with the second electric capacity C2, the 3rd electric capacity C3, the first diode D1 after described 3rd resistance R3 and the 4th resistance R4 connect, the negative electrode of described first diode D1 connects the normal phase input end of the second operational amplifier U2, the plus earth of the first diode D1, normal phase input end ground connection after the 5th resistance R5 of described second operational amplifier U2; The inverting input of described second operational amplifier U2 connects the output terminal of the second operational amplifier U2 after the 6th resistance R6, the 5th electric capacity C5, and the inverting input of the second operational amplifier U2 connects the output terminal of the second operational amplifier U2 after the 4th electric capacity C4; Output terminal ground connection after the second parallel circuit that the 8th resistance R8 and the 6th electric capacity C6 parallel connection is formed of described second operational amplifier U2, the output terminal of described second operational amplifier U2 also connects cathode voltage input end after the 7th resistance R7; The output terminal of described second operational amplifier U2 also connects signal processing chip.
First control signal inputs through the first signal input part V1, exports to second operational amplifier U2 after being amplified by the first operational amplifier U1.The magnification factor of the first operational amplifier U1 is close to 1, and the effect of the first operational amplifier U1 is voltage follower, has filter action simultaneously, for being taken out by the high-frequency signal in the first control signal.First control signal exports to the second operational amplifier U2 after the first operational amplifier U1 process, and the first control signal is amplified by acting as of the second operational amplifier U2, and the second operational amplifier is greater than 1 to the multiple that the first control signal is amplified.Normal phase input end ground connection after the first parallel circuit of described second operational amplifier U2, described first parallel circuit is used for voltage stabilizing, first diode D1 is reference diode, for keeping the stable of the voltage of each branch road in the first parallel circuit, prevents backward voltage to the damage of circuit.
Above-mentioned signal processing module also comprises the 3rd signal input part V3,9th resistance R9 is to the 11 resistance R11,7th electric capacity C7 is to the 11 electric capacity C11, described signal processing chip comprises first interface to the 8th interface, the second interface of described signal processing chip, the 4th interface, the 8th interface all ground connection; The first interface of described signal processing chip connects the output terminal of the second operational amplifier U2,3rd interface of signal processing chip is through the 7th electric capacity C7, ground connection after the 3rd parallel circuit that 8th electric capacity C8 parallel connection is formed, the 3rd interface of described signal processing chip also connects cathode voltage input end; 7th interface of described signal processing chip meets the 3rd signal input part V3 after the 9th resistance R9, and described 3rd signal input part V3 is ground connection after the 9th resistance R9, the 9th electric capacity C9; 6th interface of described signal processing chip through the tenth electric capacity C10, the 11 electric capacity C11 parallel connection form the 4th parallel circuit after ground connection, described 6th interface also connects cathode voltage input end; 5th interface of described signal processing chip connects signal output module after the tenth resistance R10, the 5th interface also ground connection after the tenth resistance R10, the 11 resistance R11 of described signal processing chip.
Above-mentioned secondary signal load module also comprises: the 12 resistance R12 is to the 16 resistance R16, described 12 electric capacity C12 is to the 13 electric capacity C13, described secondary signal input end V2 connects the inverting input of the 3rd signal amplifier U3 after the 12 resistance R12, the 13 resistance R13, and secondary signal input end V2 ground connection after the 12 resistance R12, the 12 electric capacity C12; Normal phase input end ground connection after the 14 resistance R14 of described 3rd operational amplifier U3; The inverting input of the 3rd operational amplifier U3 is connected after the 5th parallel circuit that the output terminal of described 3rd operational amplifier is formed after the 15 resistance R15 is in parallel with the 13 electric capacity C13; The output terminal of described 3rd operational amplifier U3 connects signal output module.
Above-mentioned signal output module also comprises: signal output part T1,17 resistance R17 is to the 19 resistance R19,14 electric capacity C14 is to the 15 electric capacity C15, and the normal phase input end of described four-operational amplifier U4 connects signal processing module after the 17 resistance R17; The inverting input of described four-operational amplifier U4 connects secondary signal load module, the inverting input of described four-operational amplifier U4 connects the output terminal of four-operational amplifier U4 after the 14 electric capacity C14, and the output terminal of four-operational amplifier U4 connects signal output part T1 after the 19 resistance R19; After described 18 resistance R18, the 15 electric capacity C15 connect successively, be parallel to the two ends of the inverting input of four-operational amplifier U4 and the output terminal of four-operational amplifier U4.
First control signal exports to the first interface of signal processing chip after the second operational amplifier U2, and the 3rd control signal of the 3rd signal input part V3 exports to the 7th interface of signal processing chip after ground 15 resistance R15 step-down.The output terminal of signal processing chip and the 5th interface of signal processing chip, the first interface of signal processing chip and the 7th interface to the first control signal and the 3rd control signal after the process of signal processing chip, exported to the in-phase input end of four-operational amplifier U4 by the 5th interface of signal processing chip.The second control signal that described secondary signal input end V2 inputs exports to the inverting input of the 3rd operational amplifier U3 after the 12 resistance R12 and the 13 resistance R13 step-down.3rd operational amplifier U3 act as subtractor, the positive input end grounding of the 3rd operational amplifier U3, the voltage swing of the output terminal output signal of the 3rd operational amplifier U3 is equal with the voltage swing of the signal of the input of the inverting input of the 3rd operational amplifier U3, polarity is contrary, the signal that described 3rd operational amplifier U3 exports exports to the inverting input of four-operational amplifier U4, the signal of the 5th interface output of signal processing chip exports to the normal phase input end of four-operational amplifier U4, four-operational amplifier U4 is as comparator, the normal phase input end of four-operational amplifier U4 and the signal magnitude of inverting input are compared.The size of the signal of the output terminal output of four-operational amplifier U4 is the difference of the signal magnitude of normal phase input end and inverting input, and the signal that the output terminal of four-operational amplifier U4 exports is exported by signal output part T1 after the 19 resistance R19.
Above-mentioned signal processing chip is AD633 chip.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. an automatic Regulation water pump for improvement, is characterized in that, comprising:
Water pump, its two ends are respectively arranged with the water intake and water outlet that communicate;
Inductive component, it is installed on water pump, and can respond to force value and the flow value of liquid in water pump;
Control panel, it is electrically connected with water pump and inductive component respectively;
Force value in water pump and flow value can be converted into electrical signal and feedback control panel by inductive component, and control panel makes water pump open by this electrical signal or closes;
Be provided with control circuit on the control panel, described control circuit comprises: the first signal input module, for the input of control signal, comprise the first signal input part V1, the first operational amplifier U1 and the second operational amplifier U2, the first signal input module has amplification to control signal; Secondary signal load module, for the input of control signal, comprise secondary signal input end V2V2, the 3rd operational amplifier U3, secondary signal load module has amplification to signal; Signal processing module, comprises signal processing chip, for comparing control signal and processing; Signal output module, for the control signal after output processing, comprises four-operational amplifier U4; Described control circuit also comprises cathode voltage input end, cathode voltage input end.
2. the automatic Regulation water pump of a kind of improvement according to claim 1, it is characterized in that, described first signal input module also comprises: the first resistance R1 is to the 8th resistance R8, first electric capacity C1 is to the 6th electric capacity C6, first diode D1, described first signal input part V1 connects the normal phase input end of the first operational amplifier U1 after the first resistance R1, and described first signal input part V1 is also through the first resistance R1 ground connection after the first electric capacity C1; The output terminal of described first operational amplifier U1 connects the inverting input of the second operational amplifier U2 after the second resistance R2, and the output terminal of described first operational amplifier U1 also connects the inverting input of the first operational amplifier U1; The first parallel circuit is formed after in parallel with the second electric capacity C2, the 3rd electric capacity C3, the first diode D1 after described 3rd resistance R3 and the 4th resistance R4 connect, the negative electrode of described first diode D1 connects the normal phase input end of the second operational amplifier U2, the plus earth of the first diode D1, normal phase input end ground connection after the 5th resistance R5 of described second operational amplifier U2; The inverting input of described second operational amplifier U2 connects the output terminal of the second operational amplifier U2 after the 6th resistance R6, the 5th electric capacity C5, and the inverting input of the second operational amplifier U2 connects the output terminal of the second operational amplifier U2 after the 4th electric capacity C4; Output terminal ground connection after the second parallel circuit that the 8th resistance R8 and the 6th electric capacity C6 parallel connection is formed of described second operational amplifier U2, the output terminal of described second operational amplifier U2 also connects cathode voltage input end after the 7th resistance R7; The output terminal of described second operational amplifier U2 also connects signal processing chip.
3. the automatic Regulation water pump of a kind of improvement according to claim 2, it is characterized in that, described signal processing module also comprises the 3rd signal input part V3,9th resistance R9 is to the 11 resistance R11,7th electric capacity C7 is to the 11 electric capacity C11, described signal processing chip comprises first interface to the 8th interface, the second interface of described signal processing chip, the 4th interface, the 8th interface all ground connection; The first interface of described signal processing chip connects the output terminal of the second operational amplifier U2,3rd interface of signal processing chip is through the 7th electric capacity C7, ground connection after the 3rd parallel circuit that 8th electric capacity C8 parallel connection is formed, the 3rd interface of described signal processing chip also connects cathode voltage input end; 7th interface of described signal processing chip meets the 3rd signal input part V3 after the 9th resistance R9, and described 3rd signal input part V3 is ground connection after the 9th resistance R9, the 9th electric capacity C9; 6th interface of described signal processing chip through the tenth electric capacity C10, the 11 electric capacity C11 parallel connection form the 4th parallel circuit after ground connection, described 6th interface also connects cathode voltage input end; 5th interface of described signal processing chip connects signal output module after the tenth resistance R10, the 5th interface also ground connection after the tenth resistance R10, the 11 resistance R11 of described signal processing chip.
4. the automatic Regulation water pump of a kind of improvement according to claim 3, it is characterized in that, described secondary signal load module also comprises: the 12 resistance R12 is to the 16 resistance R16, described 12 electric capacity C12 is to the 13 electric capacity C13, described secondary signal input end V2 connects the inverting input of the 3rd signal amplifier U3 after the 12 resistance R12, the 13 resistance R13, and secondary signal input end V2 ground connection after the 12 resistance R12, the 12 electric capacity C12; Normal phase input end ground connection after the 14 resistance R14 of described 3rd operational amplifier U3; The inverting input of the 3rd operational amplifier U3 is connected after the 5th parallel circuit that the output terminal of described 3rd operational amplifier is formed after the 15 resistance R15 is in parallel with the 13 electric capacity C13; The output terminal of described 3rd operational amplifier U3 connects signal output module.
5. the automatic Regulation water pump of a kind of improvement according to claim 4, it is characterized in that, signal output module also comprises: signal output part T1,17 resistance R17 is to the 19 resistance R19,14 electric capacity C14 is to the 15 electric capacity C15, and the normal phase input end of described four-operational amplifier U4 connects signal processing module after the 17 resistance R17; The inverting input of described four-operational amplifier U4 connects secondary signal load module, the inverting input of described four-operational amplifier U4 connects the output terminal of four-operational amplifier U4 after the 14 electric capacity C14, and the output terminal of four-operational amplifier U4 connects signal output part T1 after the 19 resistance R19; After described 18 resistance R18, the 15 electric capacity C15 connect successively, be parallel to the two ends of the inverting input of four-operational amplifier U4 and the output terminal of four-operational amplifier U4.
6. the automatic Regulation water pump of a kind of improvement according to claim 5, is characterized in that, described signal processing chip is AD633 chip.
7. the automatic Regulation water pump of a kind of improvement according to claim 1, it is characterized in that, described inductive component comprises mounting cover, mounting plate and sensor, the outer surface of water pump offers mounting groove, described mounting cover is covered on mounting groove, between mounting cover and mounting groove, be provided with mounting plate, described sensor setting is on mounting plate, and sensor can respond to force value and the flow value of liquid in water pump.
8. the automatic Regulation water pump of a kind of improvement according to claim 1 or 7, it is characterized in that, at the two ends of water pump, water inlet connection and water outlet joint are set respectively, described water inlet connection communicates with water intake, described water outlet joint communicates with water outlet, between water inlet connection and water outlet joint, be provided with safety check, and the front end of described safety check is connected with water inlet connection, the rear end of safety check is connected with water outlet joint, and is provided with elastic component between safety check and water outlet joint.
9. the automatic Regulation water pump of a kind of improvement according to claim 8, it is characterized in that, water pump offers the through hole running through water pump sidewall, safety check offers the mounting platform corresponding with through hole, mounting platform is provided with float, the upper end of described float is stretched out through hole and is connected with sensor, and described float can along the slippage of through hole in the vertical direction.
10. the automatic Regulation water pump of a kind of improvement according to claim 9, it is characterized in that, described controller comprises control panel, circuit board and base, and described control panel is arranged on base, described circuit board is between control panel and base, and described sensor is connected with circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802172.5A CN105484989A (en) | 2015-11-19 | 2015-11-19 | Improved automatic pressure regulating water pump |
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| CN201510802172.5A CN105484989A (en) | 2015-11-19 | 2015-11-19 | Improved automatic pressure regulating water pump |
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| CN105484989A true CN105484989A (en) | 2016-04-13 |
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| CN204312304U (en) * | 2014-11-11 | 2015-05-06 | 宁波李立电器有限公司 | Pressure switch for water pump adjustable structure |
| CN204511843U (en) * | 2015-03-19 | 2015-07-29 | 常州轻工职业技术学院 | A kind of control system being suitable for automatically controlled water pump water output |
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| US20040247446A1 (en) * | 2001-10-03 | 2004-12-09 | Berryman Walter Henry | Pump control system |
| CN2918803Y (en) * | 2006-05-19 | 2007-07-04 | 陈仁德 | Electronic automatic control water pump |
| CN202690398U (en) * | 2012-05-19 | 2013-01-23 | 浙江利欧股份有限公司 | Novel automatic no-load protection type water pump |
| CN103470482A (en) * | 2013-08-30 | 2013-12-25 | 张仙驰 | Silicon-controlled water pump pressure regulation control device |
| CN203499972U (en) * | 2013-10-11 | 2014-03-26 | 台州市耀达工贸有限公司 | Integrated water pump controller |
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Application publication date: 20160413 |