CN203024325U - Energy-saving control cabinet applicable to water pump of central air-conditioner system - Google Patents
Energy-saving control cabinet applicable to water pump of central air-conditioner system Download PDFInfo
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- CN203024325U CN203024325U CN 201220681980 CN201220681980U CN203024325U CN 203024325 U CN203024325 U CN 203024325U CN 201220681980 CN201220681980 CN 201220681980 CN 201220681980 U CN201220681980 U CN 201220681980U CN 203024325 U CN203024325 U CN 203024325U
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- energy
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- cabinet
- saving control
- water pump
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Abstract
An energy-saving control cabinet applicable to a water pump of a central air-conditioner system relates to the field of controlling of the central air-conditioner system. The energy-saving control cabinet is composed of a cabinet body and a cabinet door. The energy-saving control cabinet is characterized in that a three-phase breaker, a current transformer, a transducer, a power frequency operation switch contactor, a variable frequency operation contactor, a motor overload protector, two miniature circuit breakers, an intermediate relay, a direct current switch power supply and an intelligent data processing unit are distributed in the cabinet body. A three-phase main circuit breaker operating handle, a manual/automatic selection change-over switch, an emergency stopping button, a frequency manual adjustment button, a transducer operation panel, a control power supply operation signal and fault indicating lamp, a voltage and electric quantity metering meter, a power frequency/variable frequency selection switch and a starting/stopping button are distributed on the cabinet door. Energy-saving control on the water pump can be achieved through the transducer, investment cost of energy-saving transformation is saved, a strong and weak electricity integrated compound mode is used for simplifying site installation procedures and reducing failure rate.
Description
Technical field
The utility model relates to the central air conditioner system control field, particularly is applicable to the control of water pump in central air conditioner system.
Background technology
Central air conditioner system is indispensable part in modern architecture, and its energy consumption one is to the chief component that is building energy consumption.Along with the increase of the height of the raising of cold machine Energy Efficiency Ratio and building, increasing as the proportion of the energy consumption duty adjusting system total energy consumption of the water pump of air conditioner of energy transmission ﹠ distribution equipment, it is important all the more that its Energy Saving Control also just becomes.
At present, in the conventional central air-conditioning system, water pump is generally fixed-frequency control, and because air-conditioning system generally all operates under sub-load, design selection often leaves again surplus simultaneously, so in system, each link water pump most of the time is unmatched with the actual demand of system, causes larger energy waste.
In prior art, existing energy-saving control method majority is to reduce the operation energy consumption of water pump by simple frequency adjustment, but owing to not considering influencing each other and coupled problem of a plurality of ends, system often is difficult to be operated under comparatively desirable and stable operating mode.Simultaneously on control appliance, controller, frequency converter and supporting heavy current cabinet etc. are all often have different manufacturers to provide and construct, each other complex interfaces, need the content of co-ordination more, greatly affected the enforcement of practical strategies, so the water pump that has carried out at present VFC also majority is to operate under fixing frequency, do not reach the match control that changes with system loading, namely can not really realize the energy-conservation of water pump, that does not also bring into play the energy-conservation control device such as frequency converter should have effect.
Summary of the invention
For above-mentioned deficiency of the prior art, the purpose of this utility model is to provide a kind of energy-saving control cabinet that is applicable to the central air conditioner system water pump.It can realize having saved the cost of investment of reducing energy consumption with the Energy Saving Control of frequency converter to water pump, and the integrated combination of strong and weak electricity has been simplified on-the-spot installation procedure, has reduced fault rate.
In order to reach the foregoing invention purpose, the technical solution of the utility model realizes as follows:
Be applicable to the energy-saving control cabinet of central air conditioner system water pump, it is comprised of cabinet and cabinet door.Its design feature is to arrange three-phase breaker, current transformer, frequency converter, power frequency operation switching contactor, converting operation contactor, motor overload protector, two miniature circuit breakers, auxiliary reclay, direct-current switch power supply and intelligent data processing units in described cabinet.Arrange three-phase main circuit breaker operating grip, manual/auto selective switchgear, emergency stop push button, frequency manual adjustments knob, frequency-changer operation panel, control power supply run signal and malfunction indicator lamp, voltage and voltameter scale, power frequency/frequency conversion selector switch and start/stop button on described cabinet door.
In above-mentioned energy-saving control cabinet, the top of described cabinet is provided with ventilating fan and ventilation shutter one, and cabinet door bottom is provided with ventilation shutter two.
The utility model adopts the integrated combination of strong and weak electricity owing to having adopted said structure, has simplified on-the-spot installation procedure, has reduced fault rate.Can realize with the Energy Saving Control of frequency converter to water pump by the utility model switch board, supply greater flexibility for the user realizes pump group Energy Conservation, also save the reducing energy consumption cost of investment.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Description of drawings
Fig. 1 is the components and parts layout in the utility model cabinet;
Fig. 2 is the components and parts layout on the utility model cabinet door.
The specific embodiment
With reference to figure 1 and Fig. 2, the utility model energy-saving control cabinet is comprised of cabinet and cabinet door.Arrange three-phase breaker 1, current transformer 2, frequency converter 3, power frequency operation switching contactor 4, converting operation contactor 5, motor overload protector 6, two miniature circuit breakers 7, auxiliary reclay 8, direct-current switch power supply 10 and intelligent data processing units 11 in cabinet.Arrange three-phase main circuit breaker operating grip 12, manual/auto selective switchgear 13, emergency stop push button 14, frequency manual adjustments knob 16, frequency-changer operation panel 17 on the cabinet door, control power supply run signal and malfunction indicator lamp 18, voltage and voltameter scale 19, power frequency/frequency conversion selector switch 20 and start/stop button 24.The top of cabinet 1 is provided with ventilating fan 15 and ventilation shutter 1, and cabinet door bottom is provided with ventilation shutter 2 23.
During the utility model work operation, be divided into following several modes:
(1) automatic frequency-conversion pattern
Manual/auto selective switchgear 13 is placed in automated location.Power frequency/frequency conversion selector switch 20 is placed in the frequency conversion position.Two single-phase small breakers 7 close a floodgate, the control loop power connection, and direct-current switch power supply 10 out-put supply 12VDC start working to intelligent data processing unit 11.Three-phase main circuit breaker operating grip 12 is placed in closing position.Connect main incoming power to frequency converter 3.Frequency conversion switching contactor 5 is connected frequency converter 3 and is exported the water pump load to.
Intelligent data processing unit 11 can pass through sensor, receive the analog signalses such as outside humiture or ductwork pressure (4～20mA), according to the Energy Saving Strategy software program that presets in advance, data are processed.And water pump starting-up signal and best rotational speed setup are issued frequency converter 7, frequency converter 7 will drag the pump motor load running at optimum speed according to the given frequency output of intelligent data processing unit 11.Intelligent data processing unit 11 will change according to the pipe network water flowing pressure to be adjusted pump rotary speed according to water pump optimum operation situation in real time.Make water pump operation and pipe network flow parameter coupling, to reach the purpose of pump energy saving operation.
The signals such as the operation of frequency converter 3 and fault and pump frequency conversion operation also are linked into intelligent data processing unit 11 simultaneously.And all operation/fault-signals and ductwork pressure parameter all can be by the CAN buses of intelligent data processing unit 11, and teletransmission in real time is to the upper level computer network.Be convenient to higher one-level management.
(2) manual variable mode
When intelligent data processing unit 11 is in maintenance state, when equipment can't move automatically, can the people be this equipment of manual operation.That is: manual/auto selective switchgear 13 is placed in manual position.Power frequency/frequency conversion selector switch 20 is placed in the frequency conversion position.
The frequency of the manual adjustments of manually adjusting frequency knob 16, frequency-changer operation panel 17 display requirements.Start start/stop button 24.At this moment frequency converter 7 will be adjusted given frequency output according to manual adjustments knob 16, drag pump motor according to the rotation speed operation of manual setting.
This manual mode when automatic system breaks down, can make water pump fan realize " " independent operating voluntarily on the spot.
(3) power frequency operation pattern
When frequency converter 3 is in inspecting state, this equipment can easily return to water pump original power frequency operation.Be about to power frequency/frequency conversion selector switch 20 and be placed in power frequency.At this moment power frequency operation switching contactor 4 action is converted to power frequency bypass, power frequency operation switching contactor 4 and disconnects the frequency converter loop.The normal power frequency of this equipment output can make the plugman frequently move.
Except above several operational modes, the utility model equipment also provides the electric energy metrical transporting function for energy conserving system.When equipment moved, voltage and voltameter scale 19 received current transformer 2 secondary currents showed electrical parameter on the spot.And be converted to data-signal, by 485 interfaces, can network with computer system.So that electric quantity data centralized management.
Claims (2)
1. be applicable to the energy-saving control cabinet of central air conditioner system water pump, it is comprised of cabinet and cabinet door, it is characterized in that, arrange three-phase breaker (1) in described cabinet, current transformer (2), frequency converter (3), power frequency operation switching contactor (4), converting operation contactor (5), motor overload protector (6), two miniature circuit breakers (7), auxiliary reclay (8), direct-current switch power supply (10) and intelligent data processing unit (11), arrange three-phase main circuit breaker operating grip (12) on described cabinet door, manual/auto selective switchgear (13), emergency stop push button (14), frequency manual adjustments knob (16), frequency-changer operation panel (17), control power supply run signal and malfunction indicator lamp (18), voltage and voltameter scale (19), power frequency/frequency conversion selector switch (20) and start/stop button (24).
2. energy-saving control cabinet according to claim 1, is characterized in that, the top of described cabinet (1) is provided with ventilating fan (15) and ventilation shutter one (22), and cabinet door bottom is provided with ventilation shutter two (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220681980 CN203024325U (en) | 2012-12-12 | 2012-12-12 | Energy-saving control cabinet applicable to water pump of central air-conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220681980 CN203024325U (en) | 2012-12-12 | 2012-12-12 | Energy-saving control cabinet applicable to water pump of central air-conditioner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203024325U true CN203024325U (en) | 2013-06-26 |
Family
ID=48648305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220681980 Withdrawn - After Issue CN203024325U (en) | 2012-12-12 | 2012-12-12 | Energy-saving control cabinet applicable to water pump of central air-conditioner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203024325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868192A (en) * | 2012-12-12 | 2014-06-18 | 同方泰德国际科技(北京)有限公司 | Energy-saving control cabinet suitable for central air-conditioning system water pump |
| CN107989784A (en) * | 2018-01-16 | 2018-05-04 | 天津大学建筑设计研究院 | It is automatically prevented from the device of water pump current overload |
| CN108180602A (en) * | 2017-12-27 | 2018-06-19 | 江苏联宏智慧能源股份有限公司 | A kind of intelligent frequency-conversion switch board and its control method |
-
2012
- 2012-12-12 CN CN 201220681980 patent/CN203024325U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868192A (en) * | 2012-12-12 | 2014-06-18 | 同方泰德国际科技(北京)有限公司 | Energy-saving control cabinet suitable for central air-conditioning system water pump |
| CN103868192B (en) * | 2012-12-12 | 2016-06-15 | 同方泰德国际科技(北京)有限公司 | A kind of energy-saving control cabinet suitable in central air conditioner system water pump |
| CN108180602A (en) * | 2017-12-27 | 2018-06-19 | 江苏联宏智慧能源股份有限公司 | A kind of intelligent frequency-conversion switch board and its control method |
| CN107989784A (en) * | 2018-01-16 | 2018-05-04 | 天津大学建筑设计研究院 | It is automatically prevented from the device of water pump current overload |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |