CN103868191A - Energy-saving control cabinet suitable for central air-conditioning system cooling tower - Google Patents
Energy-saving control cabinet suitable for central air-conditioning system cooling tower Download PDFInfo
- Publication number
- CN103868191A CN103868191A CN201210533250.2A CN201210533250A CN103868191A CN 103868191 A CN103868191 A CN 103868191A CN 201210533250 A CN201210533250 A CN 201210533250A CN 103868191 A CN103868191 A CN 103868191A
- Authority
- CN
- China
- Prior art keywords
- energy
- cabinet
- cooling tower
- saving control
- central air
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an energy-saving control cabinet suitable for a central air-conditioning system cooling tower and relates to the field of central air-conditioning system control. The energy-saving control cabinet consists of a cabinet body and a cabinet door and is structurally characterized in that a three-phase breaker, a current transformer, a frequency converter, two small breakers, an intermediate relay, a direct-current switch power supply and an intelligent data processing unit are arranged in the cabinet body. The cabinet door is provided with a manual/automatic selecting change-over switch, a manual frequency adjusting rotary knob, a frequency converter operating panel, a starting/stopping button, a control power supply operating signal and fault indicating lamp, an electric quantity meter, a voltage meter and a current meter. By using the energy-saving control cabinet, intelligent control of a cooling tower fan can be achieved according to load change, and accordingly energy-saving control of the cooling tower can be achieved.
Description
Technical field
The present invention relates to central air conditioner system control field, be particularly applicable to the control of central air conditioner system cooling tower.
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.
In prior art, in central air conditioner system, cooling tower is generally fixed-frequency control, and regulates the radiating requirements of coupled system by simple number of units.This control method can only meet the variation of loading when the cold machine of varying number is opened to a certain extent, and the system loading when constant for cold board number changes does not have the corresponding match control that carries out, and causes cooling water pump and blower fan of cooling tower to be all in higher energy consumption level.In practical application simultaneously, be generally many cooling tower parallel connections, due to some enchancement factors, in the time of cooling tower valve switch, can cause the waterpower distribution of whole cooling system uneven, occur to sluice and moisturizing.So in actual use, even if some blower fan of cooling tower is closed, generally also do not close corresponding water valve, this has just caused serious mixed water problems, makes coolant water temperature be difficult to be effectively reduced, and causes the increase of cold function consumption.
Take the mode of cooling tower synchronous frequency conversion, can be in reducing cooling tower self energy consumption, effectively utilize existing area of dissipation significantly to reduce cooling water temperature, thereby realize the energy-conservation of whole air-conditioning system.But be subject at present the impact of traditional control method, cooling tower frequency conversion equipment is relatively less, even if there is frequency conversion, its control appliance, controller, frequency converter and supporting heavy current cabinet etc. are all also often have different manufacturers to provide and construct, complex interfaces each other, need the content of co-ordination more, greatly affect the enforcement of practical strategies, so the cooling tower that has carried out at present VFC also majority is to operate under fixing frequency, do not reach the match control changing with system loading, can not really realize the energy-conservation of cooling tower, that does not also bring into play the energy-conservation control devices such as frequency converter should have effect.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the object of this invention is to provide a kind of energy-saving control cabinet that is applicable to central air conditioner system cooling tower.Use it, can realize according to load variations blower fan of cooling tower is carried out to Based Intelligent Control, thereby can realize the Energy Saving Control to cooling tower.
In order to reach foregoing invention object, technical scheme of the present invention realizes as follows:
Be applicable to an energy-saving control cabinet for central air conditioner system cooling tower, it is made up of cabinet and cabinet door.Its design feature is in described cabinet, to arrange three-phase breaker, current transformer, frequency converter, two miniature circuit breakers, auxiliary reclay, direct-current switch power supply and intelligent data processing units.On described cabinet door, arrange manual/auto selective switchgear, frequency manual adjustments knob, frequency-changer operation panel, start/stop button, control power supply run signal and malfunction indicator lamp, voltameter scale, voltmeter and ammeter.
In above-mentioned energy-saving control cabinet, the top of described cabinet is provided with the offer for sale ventilation rainproof cover of door of ventilating fan and extension, and cabinet door bottom is provided with ventilation shutter.
The present invention is owing to having adopted said structure, and compared with prior art, this switch board can be realized the Energy Saving Control to cooling tower with frequency converter.Supply greater flexibility for user realizes pump group Energy Conservation, saved reducing energy consumption cost of investment simultaneously.The integrated combination of strong and weak electricity, has simplified on-the-spot installation procedure, has reduced fault rate.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Brief description of the drawings
Fig. 1 is the components and parts layout in cabinet of the present invention;
Fig. 2 is the components and parts layout on cabinet door of the present invention.
Detailed description of the invention
Referring to Fig. 1 and Fig. 2, the present invention is made up of cabinet 1 and cabinet door.The interior layout three-phase breaker 2 of cabinet 1, current transformer 3, frequency converter 4, two miniature circuit breakers 5, auxiliary reclay 7, direct-current switch power supply 8 and intelligent data processing units 9.On cabinet door, arrange manual/auto selective switchgear 11, frequency manual adjustments knob 12, frequency-changer operation panel 13, start/stop button 14, control power supply run signal and malfunction indicator lamp 15, voltameter scale 16, voltmeter 17 and ammeter 18.The top of cabinet 1 is provided with ventilating fan 20 and extends the ventilation rainproof cover 19 of the door that offers for sale, and cabinet door bottom is provided with ventilation shutter 24.
Use work operation time of the present invention to be divided into following several modes:
(1) automatic frequency-conversion pattern
Manual/auto selective switchgear 11 is placed in automated location.Two single-phase small breakers 5 close a floodgate, control loop power connection, and direct-current switch power supply 8 out-put supply 12VDC start working to intelligent data processing unit 9.Three-phase main circuit breaker is placed in closing position, and frequency converter 4 is connected the main incoming power of frequency converter.
Intelligent data processing unit 9 can receive the analog signalses (4～20mA) such as outside humiture or ductwork pressure, according to the Energy Saving Strategy software program of prior precognition, data is processed.And starting-up signal and best rotational speed setup are issued to frequency converter 4, frequency converter 4 operates in optimum speed by dragging blower fan of cooling tower according to 9 given frequency output.Intelligent control unit will change and according to blower fan of cooling tower optimum operation situation, rotation speed of fan be adjusted in real time according to pipe network water flowing pressure.Make blower fan of cooling tower operation and pipe network flow parameter coupling, to reach cooling effect the best blower fan of cooling tower minimum energy-conservation object that consumes energy.
The signal such as operation and fault of frequency converter 4 is also linked in the input module of intelligent cell controller 9 simultaneously.And all operation/fault-signals and ductwork pressure parameter, all can pass through the CAN bus of data processing unit 9, teletransmission is in real time to upper level computer network.Be convenient to higher one-level management.
(2) manual variable mode
When intelligent data processing unit 9 is in maintenance state, when equipment cannot move automatically, can people be this equipment of manual operation.That is: manual/auto selective switchgear 11 is placed in to manual position.
The manual adjustments of manually adjusting frequency knob 12, frequency-changer operation panel 13 show the frequency requiring.Start start/stop button 14, at this moment frequency converter 4, by adjust given frequency output according to frequency manual adjustments knob 12, drags blower fan of cooling tower according to the rotation speed operation regulating.
This manual mode, in the time that automatic system breaks down, can make blower fan of cooling tower realize " " independent operating voluntarily on the spot.
Except above several operational modes, energy-saving control cabinet of the present invention is also for energy conserving system provides electric energy metrical transporting function.In the time that equipment moves, voltameter scale 16 received current transformer 3 secondary currents, show 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. one kind is applicable to the energy-saving control cabinet of central air conditioner system cooling tower, it is made up of cabinet (1) and cabinet door, it is characterized in that, in described cabinet (1), arrange three-phase breaker (2), current transformer (3), frequency converter (4), two miniature circuit breakers (5), auxiliary reclay (7), direct-current switch power supply (8) and intelligent data processing unit (9), on described cabinet door, arrange manual/auto selective switchgear (11), frequency manual adjustments knob (12), frequency-changer operation panel (13), start/stop button (14), control power supply run signal and malfunction indicator lamp (15), voltameter scale (16), voltmeter (17) and ammeter (18).
2. energy-saving control cabinet according to claim 1, is characterized in that, the top of described cabinet (1) is provided with ventilating fan (20) and extends the ventilation rainproof cover (19) of the door that offers for sale, and cabinet door bottom is provided with ventilation shutter (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533250.2A CN103868191A (en) | 2012-12-12 | 2012-12-12 | Energy-saving control cabinet suitable for central air-conditioning system cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533250.2A CN103868191A (en) | 2012-12-12 | 2012-12-12 | Energy-saving control cabinet suitable for central air-conditioning system cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103868191A true CN103868191A (en) | 2014-06-18 |
Family
ID=50907000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210533250.2A Pending CN103868191A (en) | 2012-12-12 | 2012-12-12 | Energy-saving control cabinet suitable for central air-conditioning system cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103868191A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939719A (en) * | 2017-12-27 | 2018-04-20 | 东莞市国通通风设备有限公司 | Intelligent blower electric cabinet |
| CN110118426A (en) * | 2019-05-31 | 2019-08-13 | 同方泰德国际科技(北京)有限公司 | A kind of cooling tower group control device suitable for subway station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598426A (en) * | 2004-07-20 | 2005-03-23 | 贵州华城楼宇科技有限公司 | Chilled water energy-saving apparatus of cental air conditioner |
| JP2011141072A (en) * | 2010-01-06 | 2011-07-21 | Hitachi Plant Technologies Ltd | Cooling system and cooling method |
| CN202328632U (en) * | 2011-11-15 | 2012-07-11 | 深圳市紫衡技术有限公司 | Refrigeration station system of central air conditioner |
| CN203024326U (en) * | 2012-12-12 | 2013-06-26 | 同方泰德国际科技(北京)有限公司 | Energy-saving control cabinet applicable to cooling tower of central air-conditioner system |
-
2012
- 2012-12-12 CN CN201210533250.2A patent/CN103868191A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598426A (en) * | 2004-07-20 | 2005-03-23 | 贵州华城楼宇科技有限公司 | Chilled water energy-saving apparatus of cental air conditioner |
| JP2011141072A (en) * | 2010-01-06 | 2011-07-21 | Hitachi Plant Technologies Ltd | Cooling system and cooling method |
| CN202328632U (en) * | 2011-11-15 | 2012-07-11 | 深圳市紫衡技术有限公司 | Refrigeration station system of central air conditioner |
| CN203024326U (en) * | 2012-12-12 | 2013-06-26 | 同方泰德国际科技(北京)有限公司 | Energy-saving control cabinet applicable to cooling tower of central air-conditioner system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939719A (en) * | 2017-12-27 | 2018-04-20 | 东莞市国通通风设备有限公司 | Intelligent blower electric cabinet |
| CN110118426A (en) * | 2019-05-31 | 2019-08-13 | 同方泰德国际科技(北京)有限公司 | A kind of cooling tower group control device suitable for subway station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105207222B (en) | A kind of intelligent electric power load mixing system and method | |
| CN108180602A (en) | A kind of intelligent frequency-conversion switch board and its control method | |
| CN103868192B (en) | A kind of energy-saving control cabinet suitable in central air conditioner system water pump | |
| CN103574834B (en) | A kind of air-conditioner set energy-saving control cabinet | |
| CN110118426A (en) | A kind of cooling tower group control device suitable for subway station | |
| CN102913991B (en) | Central heating distributive frequency conversion two-stage pump system energy-saving control method | |
| CN203024325U (en) | Energy-saving control cabinet applicable to water pump of central air-conditioner system | |
| CN202734145U (en) | Air conditioning unit energy saving control cabinet | |
| CN103868191A (en) | Energy-saving control cabinet suitable for central air-conditioning system cooling tower | |
| CN202149568U (en) | Cold-hot water set and central air-conditioning system | |
| CN201774496U (en) | Intelligent economizer for hydraulic press | |
| CN203024326U (en) | Energy-saving control cabinet applicable to cooling tower of central air-conditioner system | |
| CN201858698U (en) | Programmed frequency conversion energy-saving heat exchange station | |
| CN103354361A (en) | Low-voltage three-phase load automation balancing device | |
| CN105674517B (en) | A kind of precision air conditioner energy saver and energy-saving control method for computer room | |
| CN104684361A (en) | Cabinet employing air conditioner combination system and group control method of cabinet | |
| CN201637008U (en) | Energy saving control device of central air conditioning | |
| CN205445981U (en) | Take energy -conserving integrated control cabinet of air compressor of touch -sensitive screen | |
| CN103776132A (en) | Energy-saving control system of central air conditioner | |
| CN106527300A (en) | Building electrical equipment integrated management system | |
| CN201858742U (en) | Metering, variable-frequency and energy-saving control cabinet of central air-conditioner | |
| CN109524975A (en) | A kind of control system and method based on threephase load balance | |
| Li et al. | Demonstration and application of AC/DC hybrid power supply system in building | |
| CN214069151U (en) | Intelligent power distribution cabinet with overheat protection function | |
| CN113124451B (en) | Electric load grading optimization capacity-increase-free control system and method for coal-to-electric heating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140618 |