CN208309700U - A kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system - Google Patents
A kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system Download PDFInfo
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- CN208309700U CN208309700U CN201820736828.7U CN201820736828U CN208309700U CN 208309700 U CN208309700 U CN 208309700U CN 201820736828 U CN201820736828 U CN 201820736828U CN 208309700 U CN208309700 U CN 208309700U
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- outlet pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model relates to a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control systems, the system includes: pond, one or more centrifugal pump, vacuum tank, Intelligent control cabinet, more centrifugal pump parallel runnings, pond water inlet connects municipal water supply pipe or circulating water pipe, pond outlet pipe is connected with one or more centrifugal pump, the outlet pipe of the centrifugal pump is connected with water main, water main supplies water to user, vacuum tank is installed on water main, Intelligent control cabinet is connected with the pressure sensor on centrifugal pump and centrifugation water pump outlet pipe, water level sensor in Intelligent control cabinet and pond, the pressure sensor on flow sensor and vacuum tank on the outlet pipe of pond is connected.The system makes centrifugal pump and motor all work always in high efficient district, to achieve the purpose that energy-saving.
Description
Technical field
The utility model relates to energy saving water supply or recirculated water field, in particular to a kind of centrifugal pump intelligent frequency reduction or raising frequency section
It can control system.
Background technique
It is different for water environment, circulating cooling, water supply in order to adapt in plant circulation water system and city tap-water pipe network
Peak valley demand, most of pump equipment are not constant flow work, are usually all that more water pumps are used in parallel, in water consumption peak valley
The pump of Duan Kaiqi different number realizes that constant pressure, constant current or constant-temperature variable supply water in conjunction with frequency conversion frequency reducing regulation technology.It is followed in factory
In ring water system and city tap-water pipe network, big flow operation is needed within one day to account for the 30% of total run time hereinafter, but in water pump
Maximum stream flow selection is usually pressed when actual selection, so most of period system is small flow operating status, i.e., it is usually said
After the shortcomings that low load with strong power, such way of supplying water is water pump reduction of speed, water pump actual motion state has had deviated from water pump
High efficient district is designed, in the case where water supply very little, to maintain the pressure of pipe network, water pump must ceaselessly be run, and cause energy consumption
It dramatically increases.
Utility model content
In order to overcome defect existing in the prior art, the utility model provides a kind of centrifugal pump intelligent frequency reduction or raising frequency section
Can control system, the centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system use separate unit or more centrifugal pump parallel runnings,
The operation of separate unit centrifugal pump velocity or more centrifugal pumps are arranged in pairs or groups according to uninterrupted to meet the water consumption of different periods, centrifugal pump electricity
Machine makes centrifugal pump and the energy-saving electric machine exist always using the energy-saving electric machine of two-stage power in the peak interval of time of actual used water
High efficient district operation, has achieved the purpose that energy-saving.
The technical solution of the utility model is: a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system, feature exist
In: the system includes: pond, one or more centrifugal pump, vacuum tank, Intelligent control cabinet, more centrifugal pump parallel runnings, pond
Water inlet connection municipal water supply pipe or circulating water pipe or other water sources, pond outlet pipe are connected with one or more centrifugal pump, institute
The outlet pipe for stating centrifugal pump is connected with water main, and water main supplies water to user, and vacuum tank, intelligence are equipped on water main
It can control cabinet to be connected with the pressure sensor on centrifugal pump and centrifugation water pump outlet pipe, the water level in Intelligent control cabinet and pond passes
Pressure sensor on sensor, flow sensor and vacuum tank on the outlet pipe of pond is connected.The user is ordinarily resident
User or factory, enterprise etc..In order to save water resource, factory and enterprise water can reuse after treatment, the circulation
Water pipe is conveyed through that treated factory and enterprise water.
Another technical solution of the utility model is: a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system,
Be characterized in that: the system includes: pond, one or more centrifugal pump, vacuum tank, Intelligent control cabinet, more centrifugal pumps simultaneously through transports
Row, pond water inlet connect the outlet pipe of cooling equipment, and pond outlet pipe is connected with one or more centrifugal pump, the centrifugal pump
Outlet pipe be connected with water main, water main is connected with cooling equipment, and vacuum tank, intelligence control are equipped on water main
Cabinet processed is connected with the pressure sensor on centrifugal pump and centrifugation water pump outlet pipe, the level sensor in Intelligent control cabinet and pond
Device, the flow sensor on the outlet pipe of pond, the pressure sensor on vacuum tank and cooling equipment outlet pipe on temperature
Sensor is connected.
Further, the water level sensor includes high water level sensor and low water level sensor.
Further, pressure sensor is installed on vacuum tank.The pressure sensor is for measuring in vacuum tank
Hydraulic pressure, and according to height of the hydraulic pressure combination least favorable point relative to vacuum tank in vacuum tank, judge the water of user's least favorable point
Pressure.
Further, Intelligent control cabinet includes PLC.The control system further includes frequency converter, and low power frequency converter can
To be mounted in Intelligent control cabinet, powerful frequency converter is independently installed.
Further, centrifugal pump motor is the energy-saving electric machine of two-stage power, which includes shell, electric machine main shaft, the
One stage motor, electromagnetism connection seat and second stage motor are equipped with first stage motor magnetic disk, second in electromagnetism connection seat
Stage motor magnetic disk, spring and electromagnet, first stage motor and second stage motor are connected by electromagnetism connection seat.
Further, first stage motor includes first stage machine winding, first stage motor stator and first stage
Rotor, first stage rotor include first stage electric machine main shaft.First stage electric machine main shaft one end and two-stage function
The electric machine main shaft of the energy-saving electric machine of rate is connected, and the first stage electric machine main shaft other end is equipped with first stage motor magnetic disk.
Further, second stage motor includes second stage machine winding, second stage motor stator and second stage
Rotor, second stage rotor include second stage electric machine main shaft, and second stage electric machine main shaft one end is equipped with second
Stage motor magnetic disk.
Further, spring is mounted in the cavity that second stage motor magnetic disk and spring mounting seat are formed.Spring peace
Dress seat is mounted on second stage electric machine main shaft.
Further, electromagnet is mounted in electromagnetism connection seat in the cavity of second stage motor.Electromagnet it is straight
Diameter is greater than the diameter of second stage electric machine main shaft, is not connected with second stage electric machine main shaft.
The utility model also proposes a kind of control method of the energy-saving electric machine of above-mentioned two-stage power, by control system and
Frequency converter controls the energy-saving electric machine of two-stage power, specific steps are as follows:
1) when first stage motor drives centrifugal pump to be able to satisfy user's regular flow requirement with power frequency operation, first stage electricity
Machine works normally, and second stage motor is in power-off dead ship condition, and electromagnet is also at off-position, second stage motor at this time
Magnetic disk makes first stage motor magnetic disk and second stage motor magnetic disk be in separated position due to the effect of spring；
2) when first stage motor is not able to satisfy flow system flow and pressure requirements with power frequency operation, control system can pass through change
Frequency device instructs the operation of first stage motor raising frequency, while electromagnet is powered and pushes second stage motor magnetic disk and first stage electricity
Machine magnetic disk combine, make first stage motor main shaft and second stage electric machine main shaft docking, second stage motor also simultaneously with
The work of first stage motor same frequency raising frequency, so that second stage electric machine main shaft delivers torque to first stage electric machine main shaft,
Meet system requirements to increase the energy-saving electric machine output power of two-stage power.
Working principle of the utility model is: that a period of time that the utility model is most using the feed flow that user requires
Actual operation parameters, as power frequency revolving speed, power frequency revolving speed is as centrifugation the way highest, when needing big flow, centrifugation
Pump is required, by frequency converter the frequency of centrifugal pump motor by the control system according to flow system flow, pressure or temperature etc.
It increases, to reach flow and pressure requirements needed for water system.When frequency reducing, centrifugation revolution speed is reduced, pressure and flow
It can and then reduce, the practical high efficient district for having deviated from pumps design causes the operational efficiency of centrifugal pump to reduce, when opposite raising frequency,
Water pump revolution increases, and the efficiency of water pump can also increase.
The centrifugal pump motor of the utility model use two-stage power energy-saving electric machine, when centrifugal pump motor power frequency operation not
When being sufficient for customer flow and pressure demand, the actual signal measured is fed back to intelligence by pressure, temperature or flow sensor
PLC in control cabinet, by PLC issue instructions to control centrifugal pump motor frequency converter on issue raising frequency instruction, electric machine frequency by
Power frequency up raising frequency, revolving speed and discharge relation are multiplying power relationships, are quadratic relationships with lift, are cubic relationships with power.
The advantageous effects of the utility model: the utility model is when user needs big flow, the control system root
According to the requirement such as flow system flow, pressure or temperature, the frequency of centrifugal pump motor is increased by frequency converter, to reach needed for user
Flow and pressure requirements, while improving the working efficiency of centrifugal pump.
In addition, the centrifugal pump motor of the utility model uses the energy-saving electric machine of two-stage power comprising first stage electricity
Machine and second stage motor, by the combination of first stage motor magnetic disk and second stage motor magnetic disk, so that second-order
Section motor delivers torque to first stage motor, so that the output power of entire motor increases, this unique structure design,
So that the energy-saving electric machine and centrifugal pump of two-stage power all work in high efficient district always, to achieve the purpose that energy-saving.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system.
Fig. 2 is a kind of structural representation of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system for recirculated water field
Figure；
Fig. 3 is a kind of structural schematic diagram of the energy-saving electric machine of two-stage power.
Appended drawing reference: 1, high water level sensor, 2, low water level sensor, 3, pond, 4, flow sensor, 5, intelligent control
Cabinet, 6, first pressure sensor, the 7, first centrifugal pump, 8, second pressure sensor, the 9, second centrifugal pump, 10, vacuum tank, 11,
Third pressure sensor, 12, third centrifugal pump, 13, cooling equipment, 14, temperature sensor, 15, first stage machine winding,
16, electric machine main shaft, 17, first stage motor stator, 18, first stage rotor, 19, electromagnetism connection seat, 20, spring, 21,
First stage motor magnetic disk, 22, electromagnet, 23, second stage motor magnetic disk, 24, second stage machine winding, 25,
Two-stage motor stator, 26, second stage rotor.
Specific embodiment
To make the purpose of this utility model, technical solution and advantage express to be more clearly understood, 1-2 with reference to the accompanying drawing
The utility model is further introduced.
The technical solution of the utility model is: a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system, feature exist
In: the system includes: pond 3, one or more centrifugal pump 7,9,12, vacuum tank 10, Intelligent control cabinet 5, and more centrifugal pumps are simultaneously
Through transport row, pond water inlet connect municipal water supply pipe or circulating water pipe, pond outlet pipe and one or more centrifugal pump 7,9,12
It is connected, the outlet pipe of one or more centrifugal pump is connected with water main, and water main supplies water to user, pacifies on water main
Equipped with vacuum tank 10, Intelligent control cabinet 5 is connected with the pressure sensor 6,8,11 on every centrifugal pump and centrifugation water pump outlet pipe,
The pressure of water level sensor, the flow sensor 4 on the outlet pipe of pond and vacuum tank 10 in Intelligent control cabinet 5 and pond 3
Sensor is connected.
Another technical solution of the utility model is: a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system,
Be characterized in that: the system includes: pond 3, one or more centrifugal pump 7,9,12, vacuum tank 10, Intelligent control cabinet 5, more from
Heart pump parallel running, the outlet pipe of the cooling equipment 13 of 3 water inlet of pond connection, pond outlet pipe and one or more centrifugal pump 7,
9,12 are connected, and the outlet pipe of the centrifugal pump 7,9,12 is connected with water main, and water main is connected with cooling equipment 13, are supplying
Vacuum tank 10 is installed on supply mains, Intelligent control cabinet 5 is connected with the pressure sensor on centrifugal pump and centrifugation water pump outlet pipe,
Water level sensor in Intelligent control cabinet 5 and pond, the flow sensor 4 on the outlet pipe of pond, the pressure on vacuum tank 10 pass
Temperature sensor on sensor and the outlet pipe of cooling equipment 13 is connected.The setting of temperature sensor 14 be avoided that centrifugal pump because
Water temperature over-high and influence its normal work.
Further, the water level sensor includes high water level sensor 1 and low water level sensor 2.
Further, pressure sensor is installed on vacuum tank 10.
Further, Intelligent control cabinet 5 includes PLC, and the control system further includes frequency converter, and Small-power Inverter can be with
It is mounted in Intelligent control cabinet, big-power transducer is independently installed.
Further, the motor of the centrifugal pump is the energy-saving electric machine of two-stage power, which includes shell, motor master
Axis 16, first stage motor, electromagnetism connection seat 19 and second stage motor are equipped with first stage motor in electromagnetism connection seat 19
Magnetic disk 21, second stage motor magnetic disk 23, spring 20 and electromagnet 22, first stage motor and second stage motor pass through
Electromagnetism connection seat 19 is connected.
Further, first stage motor includes first stage machine winding 15, first stage motor stator 17 and first
Stage rotor 18, first stage rotor 18 include first stage electric machine main shaft.First stage electric machine main shaft one end with
The electric machine main shaft 16 of the energy-saving electric machine of two-stage power is connected, and the first stage electric machine main shaft other end is equipped with first stage motor
Magnetic disk 21.
Further, second stage motor includes second stage machine winding 24, second stage motor stator 25 and second
Stage rotor 26, second stage rotor 26 include second stage electric machine main shaft, second stage electric machine main shaft one end peace
Equipped with second stage motor magnetic disk 23.
Further, spring 20 is mounted in the cavity that second stage motor magnetic disk 23 and spring mounting seat are formed.Bullet
Spring mounting base is mounted on second stage electric machine main shaft.
Further, electromagnet 22 is mounted in electromagnetism connection seat 19 in the cavity of second stage motor.Electromagnet
22 diameter is greater than the diameter of second stage electric machine main shaft, is not connected with second stage electric machine main shaft.
Further, by taking centrifugal pump working characteristics as an example, first stage motor is able to satisfy regular flow with power frequency operation and wants
When asking, second stage motor magnetic disk 23 makes first stage motor magnetic disk 21 and second stage electricity due to the effect of spring 20
Machine magnetic disk 23 is in separated position, and first stage motor, which is in, to be worked normally, and second stage motor is in dead ship condition.
Further, when first stage motor is not able to satisfy customer flow and pressure requirements with power frequency operation, the control
System can instruct first stage motor raising frequency to run, while electromagnet 22 pushes second stage motor magnetic disk 23 and first stage
Motor magnetic disk 21 combines, and keeps the main shaft of first stage motor and the docking of second stage electric machine main shaft, second stage motor also same
When with first stage motor same frequency raising frequency work, meet system requirements to increase output power, make motor always efficient
Area's operation, and reach energy saving purpose.
Working principle of the utility model is: that a period of time that the utility model is most using the feed flow that user requires
Actual operation parameters, as power frequency revolving speed, power frequency revolving speed is as centrifugation the way highest, when needing big flow, centrifugation
Pump is required, by frequency converter the frequency of centrifugal pump motor by the control system according to flow system flow, pressure or temperature etc.
It increases, to reach flow and pressure requirements needed for water system.When frequency reducing, centrifugation revolution speed is reduced, pressure and flow
It can and then reduce, the practical high efficient district for having deviated from pumps design causes the operational efficiency of centrifugal pump to reduce, when opposite raising frequency,
Water pump revolution increases, and the efficiency of water pump can also increase.
The centrifugal pump motor of the utility model use two-stage power energy-saving electric machine, when centrifugal pump motor power frequency operation not
When being sufficient for customer flow and pressure demand, the actual signal measured is fed back to intelligence by pressure, temperature or flow sensor
PLC in control cabinet, by PLC issue instructions to control centrifugal pump motor frequency converter on issue raising frequency instruction, electric machine frequency by
Power frequency up raising frequency, revolving speed and discharge relation are multiplying power relationships, are quadratic relationships with lift, are cubic relationships with power.
The advantageous effects of the utility model: the utility model is when user needs big flow, the control system root
According to the requirement such as flow system flow, pressure or temperature, the frequency of centrifugal pump motor is increased by frequency converter, to reach needed for user
Flow and pressure requirements, while improving the working efficiency of centrifugal pump.
In addition, the centrifugal pump motor of the utility model uses the energy-saving electric machine of two-stage power comprising first stage electricity
Machine and second stage motor, by the combination of first stage motor magnetic disk and second stage motor magnetic disk, so that second-order
Section motor delivers torque to first stage motor, so that the output power of entire motor increases, this unique structure design,
So that the energy-saving electric machine and centrifugal pump of two-stage power all work in high efficient district always, to achieve the purpose that energy-saving.
The energy-saving electric machine of power conventional motor all the same and the two-stage power of the utility model is compared into experiment,
Specific experiment numerical value see the table below shown in 1:
The energy-saving electric machine parameter lookup table of the two-stage power of 1 conventional motor of table and the utility model
As can be seen from Table 1, working efficiency of the energy-saving electric machine of the two-stage power of the utility model than conventional motor
Improve 1.2%.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model embodiment can have various modifications and variations.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system, it is characterised in that: the system include: pond, one or
More centrifugal pumps, vacuum tank, Intelligent control cabinets, more centrifugal pump parallel runnings, pond water inlet connect municipal water supply pipe or follow
Ring water pipe or other water sources, pond outlet pipe are connected with one or more centrifugal pump, and the outlet pipe of the centrifugal pump and water supply are total
Pipe is connected, and water main supplies water to user, and vacuum tank, Intelligent control cabinet and centrifugal pump and centrifugation are equipped on water main
Pressure sensor on water pump outlet pipe is connected, the water level sensor in Intelligent control cabinet and pond, the flow on the outlet pipe of pond
Pressure sensor on sensor and vacuum tank is connected.
2. a kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system, it is characterised in that: the system include: pond, one or
More centrifugal pumps, vacuum tank, Intelligent control cabinets, more centrifugal pump parallel runnings, pond water inlet connect the water outlet of cooling equipment
Pipe, pond outlet pipe are connected with one or more centrifugal pump, and the outlet pipe of the centrifugal pump is connected with water main, water main
It is connected with cooling equipment, is equipped on water main on vacuum tank, Intelligent control cabinet and centrifugal pump and centrifugation water pump outlet pipe
Pressure sensor be connected, water level sensor, the flow sensor on the outlet pipe of pond, pressure stabilizing in Intelligent control cabinet and pond
Pressure sensor on tank and the temperature sensor on the outlet pipe of cooling equipment are connected.
3. a kind of centrifugal pump intelligent frequency reduction as claimed in claim 1 or 2 or raising frequency energy-saving control system, it is characterised in that: institute
Stating water level sensor includes high water level sensor and low water level sensor.
4. a kind of centrifugal pump intelligent frequency reduction as claimed in claim 1 or 2 or raising frequency energy-saving control system, it is characterised in that: institute
Stating control system includes frequency converter, and Intelligent control cabinet includes PLC.
5. a kind of centrifugal pump intelligent frequency reduction as claimed in claim 1 or 2 or raising frequency energy-saving control system, it is characterised in that: from
Heart pump motor is the energy-saving electric machine of two-stage power, which includes shell, electric machine main shaft, first stage motor, electromagnetism connection
Seat and second stage motor are equipped with first stage motor magnetic disk, second stage motor magnetic disk, spring in electromagnetism connection seat
And electromagnet, first stage motor are connected with second stage motor by electromagnetism connection seat.
6. a kind of centrifugal pump intelligent frequency reduction as claimed in claim 5 or raising frequency energy-saving control system, it is characterised in that: the first rank
Section motor includes first stage machine winding, first stage motor stator and first stage rotor, and first stage motor turns
Attached bag includes first stage electric machine main shaft.
7. a kind of centrifugal pump intelligent frequency reduction as claimed in claim 5 or raising frequency energy-saving control system, it is characterised in that: second-order
Section motor includes second stage machine winding, second stage motor stator and second stage rotor, and second stage motor turns
Attached bag includes second stage electric machine main shaft, and second stage electric machine main shaft one end is equipped with second stage motor magnetic disk.
8. a kind of centrifugal pump intelligent frequency reduction as claimed in claim 5 or raising frequency energy-saving control system, it is characterised in that: spring peace
In the cavity that second stage motor magnetic disk and spring mounting seat are formed.
9. a kind of centrifugal pump intelligent frequency reduction as claimed in claim 5 or raising frequency energy-saving control system, it is characterised in that: electromagnet
It is mounted in electromagnetism connection seat in the cavity of second stage motor, the diameter of electromagnet is greater than second stage electric machine main shaft
Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820736828.7U CN208309700U (en) | 2018-05-17 | 2018-05-17 | A kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820736828.7U CN208309700U (en) | 2018-05-17 | 2018-05-17 | A kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208309700U true CN208309700U (en) | 2019-01-01 |
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ID=64712767
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820736828.7U Active CN208309700U (en) | 2018-05-17 | 2018-05-17 | A kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN208309700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625433A (en) * | 2018-05-17 | 2018-10-09 | 郭学文 | A kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system |
-
2018
- 2018-05-17 CN CN201820736828.7U patent/CN208309700U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625433A (en) * | 2018-05-17 | 2018-10-09 | 郭学文 | A kind of centrifugal pump intelligent frequency reduction or raising frequency energy-saving control system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200805 Address after: Nanmu village, Jiangbei Town, Changsha County, Changsha City, Hunan Province Patentee after: Okay Changsha Pump Manufacturing Co. Address before: 410135 Changsha County, Changsha City, Hunan province Nansha Town nanmu village Changsha Okai Pump Manufacturing Co., Ltd. Patentee before: Guo Xuewen |