CN208089581U - Centrifugal pump and magneto monitoring of working condition feedback device - Google Patents
Centrifugal pump and magneto monitoring of working condition feedback device Download PDFInfo
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- CN208089581U CN208089581U CN201820500084.9U CN201820500084U CN208089581U CN 208089581 U CN208089581 U CN 208089581U CN 201820500084 U CN201820500084 U CN 201820500084U CN 208089581 U CN208089581 U CN 208089581U
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Abstract
The utility model provides centrifugal pump and magneto monitoring of working condition feedback device.The utility model includes centrifugal pump, magneto and controller, the impeller center of centrifugal pump wears pump housing axis admittedly, inlet and outlet are opened up on pump case, in sealed connection turbine flowmeter on water inlet, water inlet passes through piping connection inlet gage, for water outlet by piping connection discharge pressure table, the signal output end of the signal output end of turbine flowmeter, inlet gage and discharge pressure table connects controller by electric wire；The rotor center of magneto is installed with motor shaft admittedly, and magneto is connected with ammeter and rotational speed meters by electric wire, and the signal output end of ammeter connects controller with the signal output end of rotational speed meters by electric wire；Torque sensor is set between driving end and the driving end of pump housing axis of motor shaft, and the signal output end of torque sensor connects controller by electric wire, and controller electricly connects magneto by frequency converter.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of mating reaction of pump and motor, especially a kind of centrifugation
Pump and magneto monitoring of working condition feedback device.
Background technology
In industry spot, centrifugal pump, which is all mounted in specific pipe-line system, conveys various media, real work flow
It is not only related with Characteristics of Centrifugal Pump with lift but also closely related with the characteristic of pipeline.It is generally desirable to centrifugal pump steady operation points
It is in efficiency peak, but in actual use, user changes operation in order to meet production requirement, frequently with flow restriction control mode
Operating point, thus centrifugal pump be operated in the operating mode far from declared working condition point so that efficiency declines very much, causes great energy
Source wastes, while this manual adjustment mode is difficult accurately to adjust flow and lift, time-consuming and laborious.
In order to ensure the reliability of production, for various manufacturing machines when designing adapted power drive, all there are certain richnesses
Surplus.Such as centrifugal pump is under low flow rate condition, the torque needed is smaller, or the requirement to rotating speed is relatively low, and motor cannot be
Lower operation at full capacity, at this point, motor and pump are all in for a long time under high torque or high-revolving operating condition, extra torque increases
The consumption for having added active power causes the reduction of efficiency and the waste of electric energy.Wind turbine, the pump traditional speed regulating method of equipment such as class are
It is adjusted to air quantity and confluent by adjusting baffle, the valve opening of entrance or outlet, input power is big, and a large amount of energy
Source was consumed in baffle, during shutting off of valve.It is more various with the working environment of centrifugal pump, operating mode variation it is uncontrollable because
Element gradually increases, and centrifugal pump is made to maintain needs and city that efficiency operation state is not only energy-saving and emission-reduction jointly with motor
Field is to cost-effective inevitable trend.
Utility model content
The purpose of this utility model is the presence of the above problem in view of the prior art, it is proposed that a kind of by receiving each biography
The signal of sensor, it is corresponding to adjust rotating speed to reach centrifugation to monitor and judge the working condition residing for centrifugal pump and magneto
Pump the centrifugal pump and magneto monitoring of working condition feedback device of efficiency operation state.
The purpose of this utility model can be realized by following technical proposal：Centrifugal pump is fed back with magneto monitoring of working condition
Device, including centrifugal pump, magneto and controller, the centrifugal pump include pump case, have pump chamber, the pump in the pump case
Impeller is set in chamber, and pump housing axis is worn at the center of the impeller admittedly, and the driving end of the pump housing axis stretches out the pump case, the pump case
On open up inlet and outlet, in turbine flowmeter is tightly connected on the water inlet, the water inlet passes through piping connection
Inlet gage, the water outlet pass through piping connection discharge pressure table, signal output end, the influent pressure of the turbine flowmeter
The signal output end of power table and discharge pressure table connects the controller by electric wire；The magneto includes motor casing,
The center of setting stator and rotor in the motor casing, the rotor is installed with motor shaft admittedly, and the driving end of the motor shaft is stretched out
The motor casing, the magneto are connected with ammeter and rotational speed meters, the signal output end and rotating speed of the ammeter by electric wire
The signal output end of instrument connects the controller by electric wire；Between driving end and the driving end of pump housing axis of the motor shaft
Torque sensor is set, and the motor shaft is connect by shaft coupling with the torque sensor, and the pump housing axis passes through shaft coupling
It is connect with the torque sensor, the signal output end of the torque sensor connects the controller, the control by electric wire
Device processed electricly connects the magneto by frequency converter.
This centrifugal pump is with magneto monitoring of working condition feedback device, and magneto is as power source, and magneto is with forever
Magnet replaces electrical excitation winding as magnetic potential source, and the magnetic flux and magnetic potential that it is externally provided are with external magnetic circuit magnetic conductance and armature-reaction magnetic
Variation and change automatically, can not directly adjust the size of permanent magnet magnetic potential.When magneto starts, due to its rotor inertia
It is larger so that motor can not obtain enough starting torques.When magneto is rotated with a certain frequency, the variation of load only changes
The angle of stator field axis and rotor magnetic pole axis is become, motor still keeps synchronous rotational speed to rotate at this time, when stator field axis
The angle of line and rotor magnetic pole axis increases and is more than Maximal load angle, at this time the magnetic between motor stator magnetic field and rotor permanent magnet
Power will be unable to maintain load balance so that rotor is detached from synchronous rotational speed and step-out occurs.Introducing controller can to motor variable-frequency speed-regulating
Effectively to solve magneto asynchronous starting and asynchronous oscillation.
Centrifugal pump is ideally operated in efficiency peak as carrier, centrifugal pump, but in actual use,
User can usually change the running operating point of centrifugal pump to meet production requirement, so that the efficiency of centrifugal pump is declined very much, cause
The waste of the energy.
Control system includes controller, frequency converter, touch screen and alarm.The controller carries PID regulator function,
PID can be completed using instruction guide to program, can be adjusted by the PID adjusting control panel on-line debugging functions of programming software
Go out suitable pid parameter, it is very easy to use to obtain good closed loop regulating effect.
Shaft coupling needs have higher sensibility and balance, in order to which torque sensor captures the variation of torque, together
When, due to the integration of device, so axial deviation and radial missing can be smaller, it is also smaller to the load of shaft coupling.Plum blossom joins
Axis utensil has larger axial direction, radially and angularly compensation ability, and simple in structure, radial dimension is small, light-weight, and rotary inertia is small,
Suitable for high speed occasion.Therefore, the plum coupling selected fine balance quality and applied suitable for high rotating speed.
Turbine flowmeter, pressure gauge, ammeter, rotational speed meters and torque sensor occupation mode be the prior art.Permanent magnetism
The circuit connecting mode of motor and ammeter, rotational speed meters is available circuit structure, and uses function using in the prior art.
The connection type of turbine flowmeter, pressure gauge, ammeter, rotational speed meters and torque sensor and controller, signal transfer function are
The prior art.The circuit structure and automatically controlled application that controller passes through frequency converter electric control permanent magnet motor are the prior art.
In above-mentioned centrifugal pump and magneto monitoring of working condition feedback device, the controller is also connected by electric wire and is touched
Touch screen and alarm.The circuit connecting mode of controller and touch screen and alarm is the prior art, signal interaction regulation and control
Also belong to the prior art.Every operating point parameter is shown by touch screen, is depicted as characteristic curve of centrifugal pump, and further carry out
Artificial regulatory operates.Touch screen realization human-computer interaction, the input of real-time display magneto, output power, efficiency, centrifugal pump
Each seed ginseng can also be arranged in consumption power and efficiency, the status informations such as gross efficiency of whole device, monitoring personnel by touch screen
Number, the operations such as modify to working condition, and started, stopped.By alarm, cannot be automatically adjusted in device appearance
When reparation, triggering alarm.
In above-mentioned centrifugal pump and magneto monitoring of working condition feedback device, the water inlet of the turbine flowmeter and pump case
By flanged joint between mouthful, multigroup mounting hole is uniformly opened on the border of the flange, passes through bolt shape in the mounting hole
At being fixedly mounted with.
In above-mentioned centrifugal pump and magneto monitoring of working condition feedback device, terminal box, institute are set on the motor casing
State several automatically controlled signal ends that frequency converter is correspondingly connected with by several electric wires in the terminal box.
In above-mentioned centrifugal pump and magneto monitoring of working condition feedback device, card sets solid between the rotor and motor shaft
Determine key, screens slot is set on the inner wall of the rotor, recessed keyway on the outer wall of the motor shaft, a part for the retainingf key
In embedded keyway, form a fixed connection in another part insertion screens slot.Rotor is formed reliably with motor shaft by keyway arrangements
Be connected, to ensure to rotate synchronously together.
In above-mentioned centrifugal pump and magneto monitoring of working condition feedback device, the both ends of the motor shaft are socketed with axis
It holds, the bearing is formed by supporting rack and the motor casing and is fixedly mounted, and be sticked V-shaped seal ring on the end face of the bearing.
By the rotational support of bearing, motor shaft is made to transfer out steering power.Bearing end is effectively realized by V-shaped seal ring
Sealing function.
Compared with prior art, this centrifugal pump has the following advantages with magneto monitoring of working condition feedback device：
By monitoring pump and each operating point parameter of motor, working condition residing for pump and motor, working efficiency are obtained
With total working efficiency, rotating speed is adjusted by frequency converter, while so that device is suitable for different operating modes, ensures that device begins
It is operated near best efficiency point eventually, when unadjustable failure occurs for device, carries out stopping alarm.Using variable-frequency control technique
This effective control method, as long as the rotating speed of control motor or pump is the flow of controllable pump, and speed adjustable range is wide, adjusts
Fast precision is high, and pump can not only be made to be in higher efficient point, reduces energy loss, can also build automatic monitoring feedback control
Device processed.
Description of the drawings
Fig. 1 is the structural schematic diagram of this centrifugal pump and magneto monitoring of working condition feedback device.
Fig. 2 is the control flow block diagram of the utility model.
In figure, 1, turbine flowmeter；2, pump case；3, impeller；4, pump housing axis；5, inlet gage；6, discharge pressure table；7,
Torque sensor；8, motor casing；9, motor shaft；10, ammeter；11, rotational speed meters；12, frequency converter；13, controller；14, touch screen；
15, alarm.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this centrifugal pump and magneto monitoring of working condition feedback device, including centrifugal pump, magneto and control
Device 13 processed, centrifugal pump include pump case 2, have pump chamber in pump case 2, impeller 3 are arranged in pump chamber, pump housing axis is worn at the center of impeller 3 admittedly
4, the driving end of pump housing axis 4 stretches out pump case 2, and inlet and outlet are opened up on pump case 2, is in be tightly connected turbine on water inlet
Flowmeter 1, water inlet pass through piping connection discharge pressure table 6, turbine flow by piping connection inlet gage 5, water outlet
The signal output end of meter 1, the signal output end of inlet gage 5 and discharge pressure table 6 pass through electric wire and connect controller 13；Forever
Magneto includes motor casing 8, and stator is arranged in motor casing 8 and rotor, the center of rotor are installed with motor shaft 9, the drive of motor shaft 9 admittedly
Motor casing 8 is stretched out in moved end, and magneto is connected with ammeter 10 and rotational speed meters 11 by electric wire, the signal output end of ammeter 10 and turns
The signal output end of fast instrument 11 connects controller 13 by electric wire；The driving end of driving end and the pump housing axis 4 of motor shaft 9 it
Between torque sensor 7 is set, motor shaft 9 connect by shaft coupling with torque sensor 7, and pump housing axis 4 passes through shaft coupling and torque
Sensor 7 connects, and the signal output end of torque sensor 7 connects controller 13 by electric wire, and controller 13 passes through frequency converter 12
Electricly connect magneto.
This centrifugal pump is with magneto monitoring of working condition feedback device, and magneto is as power source, and magneto is with forever
Magnet replaces electrical excitation winding as magnetic potential source, and the magnetic flux and magnetic potential that it is externally provided are with external magnetic circuit magnetic conductance and armature-reaction magnetic
Variation and change automatically, can not directly adjust the size of permanent magnet magnetic potential.When magneto starts, due to its rotor inertia
It is larger so that motor can not obtain enough starting torques.When magneto is rotated with a certain frequency, the variation of load only changes
The angle of stator field axis and rotor magnetic pole axis is become, motor still keeps synchronous rotational speed to rotate at this time, when stator field axis
The angle of line and rotor magnetic pole axis increases and is more than Maximal load angle, at this time the magnetic between motor stator magnetic field and rotor permanent magnet
Power will be unable to maintain load balance so that rotor is detached from synchronous rotational speed and step-out occurs.Controller 13 is introduced to motor variable-frequency speed-regulating
Magneto asynchronous starting and asynchronous oscillation can effectively be solved.
Centrifugal pump is ideally operated in efficiency peak as carrier, centrifugal pump, but in actual use,
User can usually change the running operating point of centrifugal pump to meet production requirement, so that the efficiency of centrifugal pump is declined very much, cause
The waste of the energy.
Control system includes controller 13, frequency converter 12, touch screen 14 and alarm 15.Controller 13 carries PID adjustings
Device function can be completed PID using instruction guide and program, passes through the PID adjusting control panel on-line debugging functions of programming software
Suitable pid parameter can be adjusted out, it is very easy to use to obtain good closed loop regulating effect.
Shaft coupling needs have higher sensibility and balance, in order to which torque sensor 7 captures the variation of torque,
Simultaneously as the integration of device, so axial deviation and radial missing can be smaller, it is also smaller to the load of shaft coupling.Plum blossom
Shaft coupling has larger axial direction, radially and angularly compensation ability, and simple in structure, radial dimension is small, light-weight, rotary inertia
It is small, it is suitable for high speed occasion.Therefore, the plum coupling selected fine balance quality and applied suitable for high rotating speed.
Turbine flowmeter 1, pressure gauge, ammeter 10, rotational speed meters 11 and torque sensor 7 occupation mode be existing skill
Art.The circuit connecting mode of magneto and ammeter 10, rotational speed meters 11 is available circuit structure, and using in the prior art
Use function.The connection side of turbine flowmeter 1, pressure gauge, ammeter 10, rotational speed meters 11 and torque sensor 7 and controller 13
Formula, signal transfer function are the prior art.Controller 13 passes through the circuit structure of 12 electric control permanent magnet motor of frequency converter and automatically controlled
Using being the prior art.
Controller 13 also connects touch screen 14 and alarm 15 by electric wire.Controller 13 and touch screen 14 and alarm
15 circuit connecting mode is the prior art, and signal interaction regulation and control also belong to the prior art.It is shown respectively by touch screen 14
Item operating point parameter, is depicted as characteristic curve of centrifugal pump, stepping pedestrian's work control manipulation of going forward side by side.Touch screen 14 is realized man-machine
Interaction, the input of real-time display magneto, output power, efficiency, the consumption power and efficiency of centrifugal pump, whole device it is total
The status informations such as efficiency, monitoring personnel can also be arranged various parameters by touch screen 14, modify, go forward side by side to working condition
The operations such as row startup, stopping.Pass through alarm 15, when device appearance cannot automatically adjust reparation, triggering alarm.
By flanged joint between turbine flowmeter 1 and the water inlet of pump case 2, multigroup peace is uniformly opened on the border of flange
Hole is filled, is fixedly mounted with by bolt formation in mounting hole.
Terminal box is set on motor casing 8, and frequency converter 12 is correspondingly connected with several automatically controlled letters in terminal box by several electric wires
Number end.
Card sets retainingf key between rotor and motor shaft 9, and screens slot, the outer wall fovea superior of motor shaft 9 is arranged on the inner wall of rotor
If keyway, in the embedded keyway of a part of retainingf key, form a fixed connection in another part insertion screens slot.Rotor and motor shaft
9 by keyway arrangements formed it is reliable be connected, to ensure to rotate synchronously together.
The both ends of motor shaft 9 are socketed with bearing, and bearing is formed by supporting rack and motor casing 8 and is fixedly mounted, the end of bearing
Be sticked V-shaped seal ring on face.By the rotational support of bearing, motor shaft 9 is made to transfer out steering power.Pass through V-seal
Circle effectively realizes the sealing function of bearing end.
As shown in Fig. 2, the regulation and control method of this centrifugal pump and magneto monitoring of working condition feedback device, includes the following steps：
1) when, magneto starts, the voltage that frequency converter exports lower frequency forms the slow stator field of rotation, with
The increase of power angle, electromagnetic torque also accordingly increases and rotor inertia is overcome to make its rotation, and rotating speed is with frequency converter frequency
Raising and gradually rise to a certain rotating speed, complete start-up course；
2), started by magneto, synchronous driving motor axis 9 operates, by 4 turns of shaft coupling synchronous drive pump housing axis
It is dynamic, realize the startup operation of centrifugal pump；
3), in centrifugal pump operational process, the flow of trandfer fluid and the component of fluid change at any time, needed for correspondence
The torque wanted is changed at any time；
4), using the unit speed set as interval (unit speed is set as 50 turns), driving centrifugal pump carries out different turn
Speed operation, the parameter value of every operating point in the case of different rotating speeds detected, be depicted as characteristic curve of centrifugal pump, pass through
Electric signal uploads in the terminal database of controller 13, and pump discharge normal interval value, pump lift are set out by monitoring calculation
Normal interval value, pump peak efficiency value and its fluctuation range percentage；
Pump peak efficiency fluctuation range percentage is set in the present embodiment as 5%, this data can carry out practical application adjustment,
Such as it can specifically be set by adjusting the mounting height of pump.
5) the pump discharge instantaneous value that centrifugal pump, is monitored by turbine flowmeter 1, passes through inlet gage 5, discharge pressure table
6 monitor centrifugation pump suction supply pressure value, water outlet pressure force value respectively, and pump lift reality is calculated by influent pressure force value and water outlet pressure force value
Duration (computational methods belong to calculation in the prior art) monitors the voltage instantaneous value and electricity of magneto by ammeter 10
Instantaneous value is flowed, power input to machine instantaneous value is calculated using voltage instantaneous value and electric current instantaneous value, is supervised by torque sensor 7
The Motor torque instantaneous value for surveying magneto is monitored the motor speed instantaneous value of magneto by rotational speed meters 11, utilizes motor
Torque instantaneous value and motor speed instantaneous value calculate output power of motor instantaneous value, pass through power input to machine instantaneous value and electricity
Machine output power instantaneous value calculates electric efficiency instantaneous value (computational methods belong to calculation in the prior art),
A, when pump discharge instantaneous value is less than pump lift normal interval less than pump discharge normal interval value or pump lift instantaneous value
When value, controller 13 exports positive feedback signal to single chip control unit, and the rotating speed to adjust magneto by frequency converter increases
Add, it is synchronous to increase centrifugation revolution speed and increase flow and lift；
B, when pump discharge instantaneous value is higher than pump lift normal interval higher than pump discharge normal interval value or pump lift instantaneous value
When value, controller 13 exports negative-feedback signal to single chip control unit, and the rotating speed to adjust magneto by frequency converter subtracts
It is small, it is synchronous to reduce centrifugation revolution speed and reduce flow and lift；
There are one the flows and lift stablized for centrifugal pump needs, specifically when pumped (conveying) medium change of component, flow and lift
It can change, so needing to be adjusted.By the similarity law of centrifugal pump, flow is directly proportional to rotating speed, and the two of lift and rotating speed
Power is directly proportional, thus adjusts rotating speed, that is, regulating flow quantity and lift.And the efficiency change pumped when rotating speed changes is little, this
Sample can make pump remain higher operational efficiency while adjusting rotating speed.In addition magneto power is in a disguised form realized
It adjusts, reaches energy-efficient effect, such as flow lift is bigger than normal sometimes, adjusts rotating speed and becomes smaller, then magneto output work
Rate is also accordingly reduced.
C, when pump discharge instantaneous value is located in pump discharge normal interval value or pump lift instantaneous value is located at the normal area of pump lift
Between be worth in when, controller 13 exports negative-feedback signal to single chip control unit, and magneto is adjusted to pass through frequency converter 12
Rotating speed reduces, until the output power of motor instantaneous value of magneto reaches minimum applicable output power, to save the energy.
The minimum output power that is applicable in refers to the lower limit boundary value of pump nominal situation down-off and Yang Cheng, then turns rotating speed down and just surpass
The lower limit of flow is gone out, that is, being less than minimum applicable output power can not ensure that pump normal work, the minimum speed are corresponding
Power is exactly the applicable output power of minimum.
Closed-loop control is carried out to rotating speed and torque in frequency control, can be adjusted at any time synchronous rotational speed, avoid magneto
There is step-out phenomenon；It can be adjusted to suitable rotating speed and torque for different operating conditions simultaneously, reduce active power
Consumption, it is energy saving, improve the efficiency of magneto.
Calculate in the unit interval from pump that output liquid is obtained by the product of lift and mass flow and acceleration of gravity
The effective power obtained, when the real-time effective efficiency value of pump of centrifugal pump has exceeded the fluctuation range percentage of pump peak efficiency value, category
In the precarious position that can not regulate and control, then controller 13 is to single chip control unit outputting parking signal, to be regulated and controled by frequency converter
Magneto is shut down, and synchronous control alarm 15 sends out alarm.
The efficiency of centrifugal pump is the ratio of the output power and input power of pump, i.e.,Lift is the list of pump output
The calculation formula of the effective energy that position weight liquid is obtained from pump, above-mentioned pump effective power is Pe=HQmG=ρ gQH (W).
It first having to ensure that centrifugal pump is operated near pump peak efficiency value, fluctuation range percentage is 5% in the present embodiment,
I.e. the pump Real time Efficiency value of centrifugal pump is in pump peak efficiency value ± 5%.Light changes rotating speed and can not be adjusted under precarious position
Section, needs shutdown inspection, is adjusted by worker and is taken the necessary measures.This thing happens, and reason is relatively more, may centrifugation
The mounting height of pump is changed, and damage etc. occurs in the parts thereof of centrifugal pump.
Power input to machine instantaneous value and output power of motor instantaneous value are transmitted to touch screen 14, pass through touch screen 14
Output power of motor instantaneous value and motor rated power are subjected to intuitively comparing, to judge the energy saving shape per moment magneto
State.
Magneto starts, and when stator is passed through three-phase alternating current, three-phase current generates electricity on the resistance of stator winding
Pressure drop, the armature field of the rotating armature magnetomotive force and foundation that generated by three-phase alternating current generate sense by cutting stator winding
Electromotive force is answered, and then is rotated with synchronous rotational speed with electromagnetic force dragging rotor.
This centrifugal pump has the following advantages with magneto monitoring of working condition feedback device：
By monitoring pump and each operating point parameter of motor, working condition residing for pump and motor, working efficiency are obtained
With total working efficiency, rotating speed is adjusted by frequency converter 12, while so that device is suitable for different operating modes, ensures device
It always works near best efficiency point, when unadjustable failure occurs for device, carries out stopping alarm.Using frequency control skill
This effective control method of art, if the rotating speed of control motor or pump is the flow of controllable pump, and speed adjustable range it is wide,
Speed regulation accuracy is high, and pump can not only be made to be in higher efficient point, reduces energy loss, can also build automatic monitoring feedback
Control device.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although turbine flowmeter 1 is used more herein；Pump case 2；Impeller 3；Pump housing axis 4；Inlet gage 5；Water outlet
Pressure gauge 6；Torque sensor 7；Motor casing 8；Motor shaft 9；Ammeter 10；Rotational speed meters 11；Frequency converter 12；Controller 13；Touch screen
14；The terms such as alarm 15, but it does not preclude the possibility of using other terms.The use of these items is only for more convenient
Ground describes and explains the essence of the utility model；Being construed as any one of the additional limitations all is and the utility model essence
What god disagreed.
Claims (6)
1. centrifugal pump and magneto monitoring of working condition feedback device, including centrifugal pump, magneto and controller, feature exist
In the centrifugal pump includes pump case, has pump chamber in the pump case, and impeller is arranged in the pump chamber, and the center of the impeller is solid
Pump housing axis is worn, the driving end of the pump housing axis stretches out the pump case, inlet and outlet, the water inlet are opened up on the pump case
In turbine flowmeter is tightly connected on mouth, the water inlet passes through pipeline by piping connection inlet gage, the water outlet
Connect discharge pressure table, the signal output end of the turbine flowmeter, the signal output end of inlet gage and discharge pressure table
The controller is connected by electric wire；The magneto includes motor casing, setting stator and rotor, institute in the motor casing
The center for stating rotor is installed with motor shaft admittedly, and the motor casing is stretched out at the driving end of the motor shaft, and the magneto passes through electricity
Line is connected with ammeter and rotational speed meters, and the signal output end of the ammeter connects institute with the signal output end of rotational speed meters by electric wire
State controller；Torque sensor is set between driving end and the driving end of pump housing axis of the motor shaft, the motor shaft passes through
Shaft coupling is connect with the torque sensor, and the pump housing axis is connect by shaft coupling with the torque sensor, the torque
The signal output end of sensor connects the controller by electric wire, and the controller electricly connects the permanent magnetism by frequency converter
Motor.
2. centrifugal pump according to claim 1 and magneto monitoring of working condition feedback device, which is characterized in that the control
Device also connects touch screen and alarm by electric wire.
3. centrifugal pump according to claim 1 and magneto monitoring of working condition feedback device, which is characterized in that the turbine
By flanged joint between flowmeter and the water inlet of pump case, multigroup mounting hole is uniformly opened on the border of the flange, it is described
It is fixedly mounted with by bolt formation in mounting hole.
4. centrifugal pump according to claim 1 and magneto monitoring of working condition feedback device, which is characterized in that the motor
Terminal box is set on shell, and the frequency converter is correspondingly connected with several automatically controlled signal ends in the terminal box by several electric wires.
5. centrifugal pump according to claim 1 and magneto monitoring of working condition feedback device, which is characterized in that the rotor
Card sets retainingf key between motor shaft, is arranged screens slot on the inner wall of the rotor, recessed keyway on the outer wall of the motor shaft,
In the embedded keyway of a part of the retainingf key, form a fixed connection in another part insertion screens slot.
6. centrifugal pump according to claim 1 and magneto monitoring of working condition feedback device, which is characterized in that the motor
The both ends of axis are socketed with bearing, and the bearing is formed by supporting rack and the motor casing and is fixedly mounted, the end face of the bearing
On be sticked V-shaped seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820500084.9U CN208089581U (en) | 2018-04-10 | 2018-04-10 | Centrifugal pump and magneto monitoring of working condition feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820500084.9U CN208089581U (en) | 2018-04-10 | 2018-04-10 | Centrifugal pump and magneto monitoring of working condition feedback device |
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| Publication Number | Publication Date |
|---|---|
| CN208089581U true CN208089581U (en) | 2018-11-13 |
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|---|---|---|---|
| CN201820500084.9U Active CN208089581U (en) | 2018-04-10 | 2018-04-10 | Centrifugal pump and magneto monitoring of working condition feedback device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591081A (en) * | 2018-04-10 | 2018-09-28 | 浙江永发机电有限公司 | Centrifugal pump and magneto monitoring of working condition feedback device and its regulation and control method |
| CN111685696A (en) * | 2020-05-28 | 2020-09-22 | 佛山市百斯特电器科技有限公司 | Protection method, device and equipment for water absorption device |
| CN113719267A (en) * | 2021-09-15 | 2021-11-30 | 西南石油大学 | Mechanical nonlinear control near-bit variable-frequency pressurizing oscillation tool |
| CN114857040A (en) * | 2022-06-24 | 2022-08-05 | 四川省机械研究设计院(集团)有限公司 | Centrifugal pump, centrifugal pump control system and control method and high-speed centrifugal pump unit |
-
2018
- 2018-04-10 CN CN201820500084.9U patent/CN208089581U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591081A (en) * | 2018-04-10 | 2018-09-28 | 浙江永发机电有限公司 | Centrifugal pump and magneto monitoring of working condition feedback device and its regulation and control method |
| CN111685696A (en) * | 2020-05-28 | 2020-09-22 | 佛山市百斯特电器科技有限公司 | Protection method, device and equipment for water absorption device |
| CN111685696B (en) * | 2020-05-28 | 2021-11-30 | 佛山市百斯特电器科技有限公司 | Protection method, device and equipment for water absorption device |
| CN113719267A (en) * | 2021-09-15 | 2021-11-30 | 西南石油大学 | Mechanical nonlinear control near-bit variable-frequency pressurizing oscillation tool |
| CN113719267B (en) * | 2021-09-15 | 2023-05-19 | 西南石油大学 | Near-bit variable-frequency pressurizing oscillation tool with mechanical nonlinear control |
| CN114857040A (en) * | 2022-06-24 | 2022-08-05 | 四川省机械研究设计院(集团)有限公司 | Centrifugal pump, centrifugal pump control system and control method and high-speed centrifugal pump unit |
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