CN201674455U - Dedicated power-saving device for cooling and refrigerating water pump motor of air-conditioner - Google Patents
Dedicated power-saving device for cooling and refrigerating water pump motor of air-conditioner Download PDFInfo
- Publication number
- CN201674455U CN201674455U CN201020133677XU CN201020133677U CN201674455U CN 201674455 U CN201674455 U CN 201674455U CN 201020133677X U CN201020133677X U CN 201020133677XU CN 201020133677 U CN201020133677 U CN 201020133677U CN 201674455 U CN201674455 U CN 201674455U
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- China
- Prior art keywords
- pump motor
- water pump
- contactor
- unit
- filter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a dedicated power-saving device for a cooling and refrigerating water pump motor of an air-conditioner, which comprises a water pump motor, wherein a three-phase circuit breaker, an input filter, a main control part and an output filter are connected in the loop of a three-phase power and the water pump motor, the main control part comprises a rectifying unit connected with the input filter, an inverting unit connected with the output filter, a filter circuit and a braking unit which are connected between the rectifying unit and the inverting unit, a PLC system in the data flow direction of the rectifying unit and the inverting unit, and a human-computer interface interacting data with the PLC system. The utility model has the beneficial effects: the dedicated power-saving device can carry out frequency conversion and filtering on a power supply, improve power factor, more effectively save power and protect the motor.
Description
Technical field
The utility model relates to a kind of battery saving arrangement, especially a kind of central air-conditioning cooling chilled water pump motor private section electric installation.
Background technology
Yet the configuration of the freezing cooling water pump motor of more existing central air-conditioning enterprise all can be greater than the demand in producing, if blower fan, pump-type load, its operational mode all is whole city's electricity condition operation, regulates flow by valve, satisfies production technology.The control device of this backwardness has not only been wasted manpower greatly, has also consumed many unnecessary electric energy.Though converter plant has been installed additional to motor in some enterprises, just be fixed on a certain frequency operation also, do not reach desirable energy-conservation human-saving effect.And the high order harmonic component that frequency converter produced more can be polluted whole power grid quality.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, but a kind of Based Intelligent Control is provided, and effectively filters the central air-conditioning cooling chilled water pump motor private section electric installation of harmonic wave.
The utility model solves the technical scheme that its technical problem adopts: this central air-conditioning cooling chilled water pump motor private section electric installation, comprise pump motor, be connected with three-phase breaker between the loop of three-phase electricity and pump motor, input filter, main control part and output filter, wherein main control part comprises the rectification unit that is connected with input filter, the inversion unit that output filter connects, be connected in filter circuit and brake unit between rectification unit and the inversion unit, the PLC system of rectification unit and inversion unit data flow and the man-machine interface of data interaction is arranged with the PLC system.
As preferably, this battery saving arrangement is provided with the temperature transmitter that can gather circulating water temperature in addition.
As preferably, be provided with contactor one between described three-phase electricity and the pump motor, be provided with contactor two between main control part and the pump motor, be provided with change over switch between contactor one and the contactor two; Change over switch is connected with the time relay; Be provided with mechanical interlocked between described contactor one and the contactor two.
The beneficial effect of utility model is: one and can carry out frequency conversion, filtering, raising power factor to power supply, and more effective saves energy, the protection motor, the filtered device of the high order harmonic component that frequency conversion is produced filters, and prolongs motor useful life; Two, the usable temp transmitter is gathered circulating water temperature, thereby carries out intelligent closed-loop control by the PLC system, saves a large amount of manpowers; Three, possesses inner civil power handoff functionality, in case the internal element module can automatically switch to city's electricity condition when breaking down, do not influence the motor operate as normal, when converting economize on electricity to by civil power, with crossing time relay time-delay power supply, to prevent motor from not stopping fully to the impact of battery saving arrangement.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
Description of reference numerals: three-phase breaker 1, input filter 2, rectification unit 3, filter circuit 4, brake unit 5, inversion unit 6, PLC system 7, man-machine interface 8, output filter 9, contactor 2 10, contactor 1, pump motor 12, the time relay 13, change over switch 14, mechanical interlocked 15.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: as Fig. 1, circuit of the present utility model connects as follows: after three-phase electricity is advanced three-phase breaker 1, one the road to input filter 2, through main control part rectification unit 3, filter circuit 4, brake unit 5, inversion unit 6, variable frequency power supply after coming out is crossed output filter 9, after contactor 2 10 is transported to pump motor 12; Contactor 1 is directly crossed on another road, is transported to pump motor 12.Wherein have mechanical interlocked 15 between contactor 1 and the contactor 2 10, prevent that its adhesive simultaneously from causing fault, adopt change over switch 14 that it is saved/the civil power switching between contactor 1 and the contactor 2 10, when switching to electricity-saving state by civil power, also by the time relay 13 time-delay adhesives, in case motor when not stopping fully with regard to starting battery saving arrangement initiating failure.Battery saving arrangement also is provided with temperature transmitter, under the electricity-saving state, power and ruuning situation according to pump motor 12, carry out the parameter setting by 8 pairs of computer process chip of man-machine interface, and by PLC system 7, A/D, D/A converting unit are gathered circulating water temperature with temperature transmitter, thereby asynchronous machine is carried out closed loop PID control.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (5)
1. a central air-conditioning cools off chilled water pump motor private section electric installation, comprise pump motor (12), it is characterized in that: be connected with three-phase breaker (1) between the loop of three-phase electricity and pump motor (12), input filter (2), main control part and output filter (9), wherein main control part comprises the rectification unit (3) that is connected with input filter (2), the inversion unit (6) that output filter (2) connects, be connected in filter circuit (4) and brake unit (5) between rectification unit (3) and the inversion unit (6), the PLC system (7) of rectification unit (3) and inversion unit (6) data flow and the man-machine interface (6) of data interaction is arranged with PLC system (7).
2. central air-conditioning according to claim 1 cooling chilled water pump motor private section electric installation is characterized in that: this battery saving arrangement is provided with the temperature transmitter that can gather circulating water temperature in addition.
3. central air-conditioning cooling chilled water pump motor private section electric installation according to claim 1 and 2, it is characterized in that: be provided with contactor one (11) between described three-phase electricity and the pump motor (12), be provided with contactor two (10) between main control part and the pump motor (12), be provided with change over switch (14) between contactor one (11) and the contactor two (10).
4. central air-conditioning cooling chilled water pump motor private section electric installation according to claim 3, it is characterized in that: change over switch (14) is connected with the time relay (13).
5. central air-conditioning cooling chilled water pump motor private section electric installation according to claim 3 is characterized in that: be provided with mechanical interlocked (15) between described contactor one (11) and the contactor two (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020133677XU CN201674455U (en) | 2010-03-16 | 2010-03-16 | Dedicated power-saving device for cooling and refrigerating water pump motor of air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020133677XU CN201674455U (en) | 2010-03-16 | 2010-03-16 | Dedicated power-saving device for cooling and refrigerating water pump motor of air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674455U true CN201674455U (en) | 2010-12-15 |
Family
ID=43331862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020133677XU Expired - Fee Related CN201674455U (en) | 2010-03-16 | 2010-03-16 | Dedicated power-saving device for cooling and refrigerating water pump motor of air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201674455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166597A (en) * | 2017-06-30 | 2017-09-15 | 宁波钱创节能科技有限公司 | A kind of energy-saving air central |
-
2010
- 2010-03-16 CN CN201020133677XU patent/CN201674455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166597A (en) * | 2017-06-30 | 2017-09-15 | 宁波钱创节能科技有限公司 | A kind of energy-saving air central |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20130316 |