CN205190254U - Immersible pump unit - Google Patents
Immersible pump unit Download PDFInfo
- Publication number
- CN205190254U CN205190254U CN201520827473.9U CN201520827473U CN205190254U CN 205190254 U CN205190254 U CN 205190254U CN 201520827473 U CN201520827473 U CN 201520827473U CN 205190254 U CN205190254 U CN 205190254U
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- Prior art keywords
- motor
- submersible pump
- pump unit
- utility
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 14
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Control Of Ac Motors In General (AREA)
Abstract
An embodiment of the utility model discloses an immersible pump unit, including immersible pump and motor, linked firmly the motor mount pad in the pump case of immersible pump, install the motor in the motor mount pad, the left and right both ends of power shaft of motor set up an impeller respectively, and the pump case is equipped with personal water inlet respectively in the axial of every impeller, and the footpath upwards is equipped with common delivery port, the immersible pump has connect circuit breaker and contactor between power and motor, the motor disposes the converter and comes the speed governing. The utility model discloses can strengthen immersible pump stability, improve motor driven valve nature and security, it can energy -conserving effect perhaps to improve the system.
Description
Technical field
The utility model relates to submersible pump, particularly relates to the submersible pump unit of variable-speed.
Background technique
Submersible pump is a kind of conventional universal machine, is widely used in the occasions such as speedily carry out rescue work in mine, construction draining, Agricultural Water irrigation and drainage, industrial water circulation, urban and rural residents' drinking water supply.Common submersible pump unit is made up of submersible pump, motor, cable, conduit pipe and control plug-in strip etc., wherein: submersible pump adopts single impeller structure, and stability is not ideal enough; Motor plug-in strip controls start and stop, and it is convenient not to operate, and electrical security is poor; Motor is common asynchronous motor, can not carry out speed governing easily, unfavorable for energy-saving and emission-reduction.In view of this, be necessary to improve submersible motor pump system.
Model utility content
For the defect that prior art exists, the object of the utility model embodiment is improvement submersible pump unit, in enhancing submersible pump stability, to improve motor driven and Security, or improves the overall performance that elevator system is carried out in the aspects such as system's energy energy-saving effect.
For solving above technical problem, the utility model embodiment provides a kind of submersible pump unit, comprise submersible pump and motor, motor mount is fixed with in the pump case of submersible pump, in motor mount, motor is installed, the left and right two ends of line shaft of motor arrange an impeller respectively, and pump case is axially respectively equipped with personal water inlet at each impeller, and radial direction is provided with public water outlet; Submersible pump is connected to circuit breaker and contactor between power supply and motor; Motor is configured with frequency variator and carrys out speed governing.
Compared with prior art, the utility model submersible pump unit can make systematic entirety to promote, and it shows and have employed following corrective measure at least in a certain respect: submersible pump adopts bilobed wheel structure, its good stability, and efficiency is higher; Optimize motor power system and the element such as circuit breaker, contactor thereof, not only electric control is better, also improves Security; Motor have employed converter technique and carrys out speed governing, thus can regulate motor speed easily according to load state, and this is conducive to realizing energy-conservation object.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of submersible pump in the utility model submersible pump unit;
Fig. 2 is the electrical schematic diagram of motor power system in the utility model submersible pump unit;
Fig. 3 is the schematic diagram of circuit breaker in the utility model submersible pump unit;
Fig. 4 is the schematic diagram of contactor in the utility model submersible pump unit;
Fig. 5 is the electrical schematic diagram of motor speed regulation system in the utility model submersible pump unit;
Fig. 6 is the skeleton diagram of frequency variator in the utility model submersible pump unit;
Fig. 7 is the circuit diagram of inverter circuit in the utility model submersible pump unit.
Embodiment
In order to understand know-why and the working procedure of the utility model embodiment better, come to be described in detail the utility model further below in conjunction with drawings and the specific embodiments.
The utility model mainly improves the submersible pump in submersible pump unit, motor power system and circuit breaker thereof and contactor, motor speed regulation system and frequency variator thereof and inverter circuit, is described below in conjunction with Fig. 1 ~ Fig. 7.Conveniently be, the parts that the application's submersible pump unit relates to are more, because length restriction is mainly described relevant improvement, the conventional techniques means that other non-improvement content (as cable, conduit pipe etc.) can adopt the art known, specifically please refer to relevant technologies handbook, do not launch explanation at this.
See Fig. 1, represent the schematic diagram of submersible pump in the utility model submersible pump unit.Motor mount 3 is fixed with in the pump case 1 of this submersible pump, motor 4 is installed in motor mount 3, the left and right two ends of line shaft 5 of motor 4 arrange an impeller 2 respectively, pump case 1 is axially respectively equipped with personal water inlet each impeller 2, radial direction is provided with public water outlet, and each impeller 2 is provided with one-way valve with the jointing place of water outlet.Because the both sides of motor 4 are installed on impeller 2 respectively, balance is good, and stability is strong.Due between two impellers for independently to circulate, the radius of two impellers 2 is identical or different, and its rotation direction is contrary, consistent to guarantee water outlet flow direction.Be understandable that, when motor 4 is arranged in motor mount 3, need adopt good sealing configuration, this with reference to known conventional techniques means, can not repeat them here.
See Fig. 2, the electrical schematic diagram of motor power system in the utility model submersible pump unit is shown.In this submersible pump unit motor power system major loop in, three phase mains (being generally civil power) input line L1, L2, L3 are connected to motor lines U1, V1, W1 of the motor (be labeled as motor 4, Fig. 2 in Fig. 1, Fig. 5 be labeled as three phase electric machine M3 ~) of submersible pump through major loop circuit breaker Q F01, contactor KM01; In control loop, the input termination three phase mains input line L2 of control loop circuit breaker Q F02, L3, one of control loop circuit breaker Q F02 exports terminal of termination contactor KM01 coil, and another output terminal of control loop circuit breaker Q F02 connects another terminal of contactor KM01 coil through inching button SB (1-3).Press inching button SB, contactor KM01 coil obtains electric adhesive, and the three-phase main contact of contactor KM01 closes, and motor obtains electric operation, driven equipment work.The time pinning inching button SB is motor crawl running time.Unclamp inching button SB, contactor KM01 coil blackout discharges, and the three-phase main contact of contactor KM01 disconnects, and motor dead electricity shuts down, and driven equipment stops.
In the utility model submersible pump unit, the circuit breaker of motor power system and contactor can adopt non-relay system structure, illustrate respectively below.
See Fig. 3, represent the electrical schematic diagram of circuit breaker in the utility model submersible pump unit.Circuit breaker of the present utility model comprises superconductive current limiter QF1 and turn-off module QF2, and power supply, K switch 1, superconductive current limiter QF1 and turn-off module QF2 are connected in series.In the present embodiment, superconductive current limiter QF1 can select existing product, and (it is as the effective short-circuit current limiting device of one, when being short-circuited fault, rapidly short circuit current can be restricted to acceptable level), specifically can be the resistance that high temperature superconducting materia is made; Turn-off module QF2 can be existing cutter or isolating switch, can comprise some semiconductor switching modules in addition; K switch 1 can be mechanical switch, as plug-in strip.
This circuit breaker is connected between power supply and working circuit (not shown), when over current fault appears in circuit, fast and cut off the electricity supply safely, specifically: when circuit normally works, circuit breaker is on state, opening or closing and cut off or access power supply by control switch K1; When over current fault appears in circuit, the electric current of circuit is very large, and the first Limited Current of superconductive current limiter QF1 of circuit breaker, then by turn-off module QF2 disconnecting circuit, disconnects aforementioned switches K1 more afterwards, thus K switch 1 place can be avoided to produce phenomenon of arc discharge.Be understandable that, circuit breaker of the present utility model can arrange the control contact of varying number, as three circuit breaker QF01 in Fig. 2 and two circuit breaker QF02, repeats no more.
See Fig. 4, represent the schematic diagram of contactor in the utility model submersible pump unit.This contactor comprises contact segment and drive part, drive part is electrostatic breech lock KM011, this electrostatic breech lock KM011 comprises two condenser armature KM012 and KM013 be parallel to each other, wherein condenser armature KM012 comprises plastic board KM014 and is connected to the electrode KM016 on plastic board KM014, and condenser armature KM013 comprises plastic board KM015 and is connected to the electrode KM017 on plastic board KM015.In addition, very thin nonconductor dielectric film (not shown) is connected on the surface of opposed facing electrode KM016 and electrode KM017.
See Fig. 5, the electrical schematic diagram of motor speed regulation system in the utility model submersible pump unit is shown.The electrical structure of this motor speed regulation system comprises: (be labeled as motor 4 in Fig. 1 at motor, Fig. 2, Fig. 5 are labeled as three phase electric machine M3 ~) control loop in, except control loop circuit breaker Q F01 and contactor KM01, also install frequency variator VF01 additional, speed governing can be carried out to motor like this, reach the object of energy-saving and frequency-variable.Wherein: A1, A2 (three groups of terminals 1,2) of the terminal 1-6 of control loop circuit breaker Q F01, contactor KM01, terminal R, S, T, V, W, PE of frequency variator VF01 connect according to Fig. 6, no longer specifically launch explanation.During shutdown, cut off the coil power of contactor KM01, contactor KM01 discharges, and cuts off the power supply in frequency variator VF01 loop thus, thus stops the operation of motor fast, avoids the damage of equipment.
See Fig. 6, the skeleton diagram of frequency variator in the utility model submersible pump unit is shown.This frequency variator comprises the parts such as rectification circuit VF011, power factor Circuit tuning VF012, eliminator VF013, inverter circuit VF014 and microcontroller circuit VF015, man-machine interface circuit VF016, these constituent elements all have existing function circuit and are selected, select according to input-output performance requirement during enforcement, do not repeat them here.Functions module that the present embodiment is preferred, wherein: rectification circuit VF011 is preferably full bridge rectifier, its Ac AC is converted to direct current; Circuit of power factor correction VF012 is made up of power semiconductor and control chip, and it is also connected to the Active PFC end of microcontroller circuit VF015, and effect makes input current close to sinusoidal wave, reduces mains by harmonics content, realize the object improving power factor; Eliminator VF013 is preferably RC eliminator, and it completes galvanic filtering and energy storage effect; Inverter circuit VF014 is made up of power model and drive circuit, and power model can be Intelligent Power Module, and it is also connected to the drive singal end of described microcontroller circuit, and it completes the conversion of direct current to threephase AC AC, realizes frequency modulation and voltage modulation object; Microcontroller circuit VF015 is made up of microprocessor (DSP) and peripheral circuit (comprising resistance, electric capacity etc.); its order of sending according to man-machine interface circuit VF016; send corresponding command signal; control circuit of power factor correction VF012 and inverter circuit VF014 to work; and according to electronic feedback information, carry out necessary circuit protection and fault treatment.Like this, this embodiment controls the output mode of driver module by microcontroller circuit, is conducive to neatly by pre-provisioning request output voltage, thus meets the demand of different user.
See Fig. 7, the skeleton diagram of inverter circuit in the utility model submersible pump unit is shown.This inverter circuit comprises power tube driving chip, and this power tube driving chip is connected to microcontroller circuit (MCU/DSP), so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter circuit comprises six power tube B1 ~ B6, and these six power tubes are divided into three groups, and every group power controls a phase and exports.
The concrete Placement of each power tube is: the source electrode of power tube B1, B2, B3 connects one end of DC electrical source jointly, the drain electrode of power tube B4, B5, B6 connects the other end of DC electrical source jointly, the tie point of the drain electrode of power tube B1 and the source electrode of power tube B4 connects the U phase terminal of AC load (as motor), the tie point of the drain electrode of power tube B2 and the source electrode of power tube B5 connects the V phase terminal of AC load, and the drain electrode of power tube B3 and the source electrode tie point of power tube B6 connect the W phase terminal of frequency converting air-conditioner compressor AC load; The grid of power tube B1, B2, B3, B4, B5, B6 connects an output terminal of power tube driving chip respectively, and each input end of this power tube driving chip controls by output pulse width regulated signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel of microcontroller circuit respectively.Corresponding access diode D1 ~ D6 between the source electrode of these six power tube B1 ~ B6 and drain electrode.
Microprocessor produces corresponding 6 road pulse width modulating signals, i.e. six drive singal PWM1 ~ PWM6 according to the operation rule of setting; 6 power tube (MOSFET or IGBT) B1 ~ B6 of inverter circuit are driven by power tube driving chip; The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, output voltage is adjustable, the threephase AC of changeable frequency, and U, V, W terminal of three-phase electricity winding are connected to respective quadrature current load and run to drive it.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with the utility model claim is as the criterion.
Claims (5)
1. a submersible pump unit, comprise submersible pump and motor, it is characterized in that, motor mount is fixed with in the pump case of submersible pump, in motor mount, motor is installed, the left and right two ends of line shaft of motor arrange an impeller respectively, and pump case is axially respectively equipped with personal water inlet at each impeller, and radial direction is provided with public water outlet; Submersible pump is connected to circuit breaker and contactor between power supply and motor; Motor is configured with frequency variator and carrys out speed governing.
2. submersible pump unit as claimed in claim 1, it is characterized in that, the jointing place of each impeller and water outlet is provided with one-way valve.
3. submersible pump unit as claimed in claim 2, it is characterized in that, the radius of two impellers is identical.
4. submersible pump unit as claimed in claim 3, it is characterized in that, the rotation direction of two impellers is contrary.
5. submersible pump unit as claimed in claim 4, is characterized in that, be provided with sealing configuration between motor and motor mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827473.9U CN205190254U (en) | 2015-10-22 | 2015-10-22 | Immersible pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520827473.9U CN205190254U (en) | 2015-10-22 | 2015-10-22 | Immersible pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190254U true CN205190254U (en) | 2016-04-27 |
Family
ID=55783250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520827473.9U Expired - Fee Related CN205190254U (en) | 2015-10-22 | 2015-10-22 | Immersible pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828341A (en) * | 2020-07-27 | 2020-10-27 | 中生源(海南)生态环境发展有限公司 | Centrifugal pump with integrated impeller and motor inner rotor |
-
2015
- 2015-10-22 CN CN201520827473.9U patent/CN205190254U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828341A (en) * | 2020-07-27 | 2020-10-27 | 中生源(海南)生态环境发展有限公司 | Centrifugal pump with integrated impeller and motor inner rotor |
| CN111828341B (en) * | 2020-07-27 | 2022-07-19 | 中生源(海南)生态环境发展有限公司 | Centrifugal pump with integrated impeller and motor inner rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20161022 |