CN201976064U - Variable-frequency energy-saving electrical control cabinet - Google Patents
Variable-frequency energy-saving electrical control cabinet Download PDFInfo
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- CN201976064U CN201976064U CN201120056932XU CN201120056932U CN201976064U CN 201976064 U CN201976064 U CN 201976064U CN 201120056932X U CN201120056932X U CN 201120056932XU CN 201120056932 U CN201120056932 U CN 201120056932U CN 201976064 U CN201976064 U CN 201976064U
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- electrical control
- control cabinet
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- saving
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Abstract
The utility model discloses a variable-frequency energy-saving electrical control cabinet, relating to a low-voltage power distribution device. The variable-frequency energy-saving electrical control cabinet comprises a human-machine interaction device, a sensor, a programmable logic controller PLC and a frequency inverter. The human-machine interaction device is connected with the PLC, any two of the frequency inverter, the sensor and the PLC are connected, and thus a closed-loop circuit is formed. The utility model has the advantages that the electrical control cabinet is energy-saving, the degree of automation control is high, the service life of the electrical control cabinet is prolonged, and normal operation of other devices in a power grid cannot be affected.
Description
Technical field
The utility model relates to low-voltage distribution apparatus, particularly relates to a kind of energy-saving and frequency-variable electrical control cabinet.
Background technology
The automatic controlling level of conventional low transmission electric equipment is lower, generally can't carry out the automatic control and the speed governing of flow to blower fan, water pump even load, adds for a long time and operates at full capacity, and just wastes very much electric energy.And the control mode of conventional low transmission electric equipment is generally direct startup or reduced-voltage starting, and it is very big to start transient current, electrical network is caused very big impact, not only influence the useful life of equipment, and be easy to generate harmonic wave, electric arc etc., influence the normal operation of miscellaneous equipment in the electrical network.
The utility model content
The purpose of this utility model is in order to overcome the deficiency of above-mentioned background technology, provide a kind of energy-conservation, automatic controlling level is higher, can prolong service life of equipment, do not influence the energy-saving and frequency-variable electrical control cabinet of the normal operation of miscellaneous equipment in the electrical network.
The energy-saving and frequency-variable electrical control cabinet that the utility model provides, it comprises human-computer interaction device and transducer, it also comprises programmable logic controller (PLC) PLC and frequency converter, described human-computer interaction device links to each other with PLC, link to each other in twos between described frequency converter, transducer and the PLC, form a close loop control circuit jointly.
In technique scheme, described human-computer interaction device adopts man-machine interface HMI or industrial computer.
In technique scheme, described transducer adopts one of temperature sensor, pressure sensor or flow sensor.
In technique scheme, the steel plate thickness of described control cubicle cabinet is at least 2 millimeters.
In technique scheme, the feet of described control cubicle cabinet foot adopts thickness to be at least 4 millimeters channel-section steel.
Compared with prior art, advantage of the present utility model is:
(1) energy-conservation.The utility model adopts frequency converter to come speed governing, and for blower fan and load of the pumps, frequency converter can change its flow, and power saving rate can reach 20%～60%.
(2) automatic controlling level is higher.The utility model has increased programmable logic controller (PLC) PLC and frequency converter, constitutes close loop control circuit between frequency converter, transducer and the PLC, realizes the automation control of electric machinery equipment.
(3) prolong service life of equipment.Because the utility model has been realized the automation control of electric machinery equipment, therefore can avoid starting and instantaneous electrical network be caused bigger impact, prolong service life of equipment.
(4) not influencing the interior miscellaneous equipment of electrical network normally moves.Because the utility model has been realized the automation control of electric machinery equipment, therefore can avoid producing harmonic wave, electric arc etc. as far as possible, do not influence the interior miscellaneous equipment of electrical network and normally move.
Description of drawings
Fig. 1 is the structured flowchart of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail:
Referring to shown in Figure 1, the energy-saving and frequency-variable electrical control cabinet that the utility model embodiment provides, it comprises human-computer interaction device, PLC (Programmable Logic Controller, programmable logic controller (PLC)), transducer and frequency converter, the human-computer interaction device links to each other with PLC, link to each other in twos between frequency converter, transducer and the PLC, form a close loop control circuit jointly.Wherein, frequency converter also links to each other with on-the-spot motor device.The human-computer interaction device adopts HMI (Human Machine Interface, man-machine interface) or industrial computer, the preferred touch-screen of HMI.Transducer adopts one of temperature sensor, pressure sensor or flow sensor.Except core component (human-computer interaction device, PLC, transducer and frequency converter), the energy-saving and frequency-variable electrical control cabinet that the utility model embodiment provides also comprise circuit breaker, contactor, auxiliary relay, cooling fan, voltmeter, ammeter, binding post, building block such as arrange.
The energy-saving and frequency-variable electrical control cabinet that the utility model embodiment provides, shell adopt the high strength steel material to make, and cabinet adopts the steel plate of thickness more than 2 millimeters to make, and cabinet foot support pin adopts the channel-section steel of thickness more than 4 millimeters to make.
The principle of the utility model embodiment is as follows:
Among the utility model embodiment, frequency converter is used to drive on-the-spot electric machinery equipment operation and speed governing, is controlled by PLC.PLC is the core of The whole control cabinet, plays computing, logic control, acquired signal, output signal, accurately sends effects such as control command, and frequency converter is worked by the mode of customer requirements.HMI (touch-screen) or built-in configuration program of industrial computer and picture, man-machine information exchange is realized in bad border of simulated field work, and monitoring is produced, user's field condition is intuitively reflected, and send instruction or revise operational factor etc. to PLC by serial communication mode.Transducer plays a part the feed back on-site practical operation situation.PLC, instrument are by communication modes or analog quantity control of conversion device frequency; What of Frequency Converter Control field apparatus acting are adjusted scene temperature, flow etc.; Transducer feeds back to PLC, instrument with the temperature of field measurement, flow, pressure etc., constitutes closed-loop control; Touch-screen, host computer are realized man-machine data information exchange, user-friendly use.Low-voltage electrical products such as circuit breaker, contactor, auxiliary relay are used to guarantee the normal operation of electric equipment.
The utility model embodiment can realize electric current, voltage, temperature, flow, the pressure to load equipment, the supervision of operation conditions, and can provide various open loops or closed-loop control according to customer requirement.Practical operation can be controlled by the HMI keyboard, and is designed to procedural style controlling party block diagram, and is simple to operate.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
The content that is not described in detail in this specification belongs to this area professional and technical personnel's known prior art.
Claims (5)
1. energy-saving and frequency-variable electrical control cabinet, it comprises human-computer interaction device and transducer, it is characterized in that: it also comprises programmable logic controller (PLC) PLC and frequency converter, described human-computer interaction device links to each other with PLC, link to each other in twos between described frequency converter, transducer and the PLC, form a close loop control circuit jointly.
2. energy-saving and frequency-variable electrical control cabinet as claimed in claim 1 is characterized in that: described human-computer interaction device adopts man-machine interface HMI or industrial computer.
3. energy-saving and frequency-variable electrical control cabinet as claimed in claim 1 is characterized in that: described transducer adopts one of temperature sensor, pressure sensor or flow sensor.
4. energy-saving and frequency-variable electrical control cabinet as claimed in claim 1 is characterized in that: the steel plate thickness of described control cubicle cabinet is at least 2 millimeters.
5. as the described energy-saving and frequency-variable electrical control cabinet of each claim of claim 1 to 4, it is characterized in that: the feet of described control cubicle cabinet foot adopts thickness to be at least 4 millimeters channel-section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120056932XU CN201976064U (en) | 2011-03-07 | 2011-03-07 | Variable-frequency energy-saving electrical control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120056932XU CN201976064U (en) | 2011-03-07 | 2011-03-07 | Variable-frequency energy-saving electrical control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201976064U true CN201976064U (en) | 2011-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120056932XU Expired - Fee Related CN201976064U (en) | 2011-03-07 | 2011-03-07 | Variable-frequency energy-saving electrical control cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN201976064U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791281A (en) * | 2015-04-17 | 2015-07-22 | 国网智能电网研究院 | Draught fan control device and control method in power electronic power cabinet |
| CN105604924A (en) * | 2016-02-17 | 2016-05-25 | 苏州中锦电气科技有限公司 | Energy-saving variable frequency pump control cabinet |
| CN108427403A (en) * | 2018-04-04 | 2018-08-21 | 中国航发湖南动力机械研究所 | The test run system and control method of aero-engine particle separator flow control |
-
2011
- 2011-03-07 CN CN201120056932XU patent/CN201976064U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791281A (en) * | 2015-04-17 | 2015-07-22 | 国网智能电网研究院 | Draught fan control device and control method in power electronic power cabinet |
| CN105604924A (en) * | 2016-02-17 | 2016-05-25 | 苏州中锦电气科技有限公司 | Energy-saving variable frequency pump control cabinet |
| CN108427403A (en) * | 2018-04-04 | 2018-08-21 | 中国航发湖南动力机械研究所 | The test run system and control method of aero-engine particle separator flow control |
| CN108427403B (en) * | 2018-04-04 | 2019-12-20 | 中国航发湖南动力机械研究所 | Test run system for flow control of particle separator of aero-engine and control method |
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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: 20110914 Termination date: 20130307 |